LWTools: lwlib/lw_expr.c annotate

annotate lwlib/lw_expr.c @ 207:07e1fac76321

Added pragma to allow non case sensitive symbols Added "nosymbolcase" and "symbolnocase" pragmas to cause symbols defined while the pragma is in effect to be treated as case insensitive. Also documented the new pragma.

author	William Astle <lost@l-w.ca>
date	Sat, 09 Jun 2012 15:47:22 -0600
parents	348e2816ce32
children	1f1a28b797e1

rev	line source
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	2 lwexpr.c
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	3
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	4 Copyright © 2010 William Astle
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	5
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	6 This file is part of LWTOOLS.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	7
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	8 LWTOOLS is free software: you can redistribute it and/or modify it under the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	9 terms of the GNU General Public License as published by the Free Software
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	10 Foundation, either version 3 of the License, or (at your option) any later
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	11 version.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	12
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	13 This program is distributed in the hope that it will be useful, but WITHOUT
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	16 more details.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	17
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	18 You should have received a copy of the GNU General Public License along with
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	19 this program. If not, see <http://www.gnu.org/licenses/>.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	20 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	21
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	22 #include <stdarg.h>
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	23 #include <stdio.h>
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	24 #include <string.h>
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	25 #include <ctype.h>
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	26
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	27 #define ___lw_expr_c_seen___
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	28 #include "lw_alloc.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	29 #include "lw_expr.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	30 #include "lw_error.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	31 #include "lw_string.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	32
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	33 static lw_expr_fn_t *evaluate_special = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	34 static lw_expr_fn2_t *evaluate_var = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	35 static lw_expr_fn3_t *parse_term = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	36
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	37 /* Q&D to break out of infinite recursion */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	38 static int level = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	39 static int bailing = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	40
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	41 int lw_expr_istype(lw_expr_t e, int t)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	42 {
43 18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity lost@l-w.ca parents: 12 diff changeset	43 /* NULL expression is never of any type */
18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity lost@l-w.ca parents: 12 diff changeset	44 if (!e)
18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity lost@l-w.ca parents: 12 diff changeset	45 return 0;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	46 if (e -> type == t)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	47 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	48 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	49 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	50
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	51 int lw_expr_intval(lw_expr_t e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	52 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	53 if (e -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	54 return e -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	55 return -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	56 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	57
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	58 int lw_expr_whichop(lw_expr_t e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	59 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	60 if (e -> type == lw_expr_type_oper)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	61 return e -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	62 return -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	63 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	64
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	65 int lw_expr_specint(lw_expr_t e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	66 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	67 if (e -> type == lw_expr_type_special)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	68 return e -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	69 return -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	70 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	71
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	72 void lw_expr_set_term_parser(lw_expr_fn3_t *fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	73 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	74 parse_term = fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	75 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	76
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	77 void lw_expr_set_special_handler(lw_expr_fn_t *fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	78 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	79 evaluate_special = fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	80 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	81
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	82 void lw_expr_set_var_handler(lw_expr_fn2_t *fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	83 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	84 evaluate_var = fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	85 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	86
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	87 lw_expr_t lw_expr_create(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	88 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	89 lw_expr_t r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	90
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	91 r = lw_alloc(sizeof(struct lw_expr_priv));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	92 r -> operands = NULL;
87 b5785eb3441f Actually initialize all fields of structure in lw_expr_create() lost@l-w.ca parents: 43 diff changeset	93 r -> value2 = NULL;
b5785eb3441f Actually initialize all fields of structure in lw_expr_create() lost@l-w.ca parents: 43 diff changeset	94 r -> type = lw_expr_type_int;
b5785eb3441f Actually initialize all fields of structure in lw_expr_create() lost@l-w.ca parents: 43 diff changeset	95 r -> value = 0;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	96 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	97 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	98
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	99 void lw_expr_destroy(lw_expr_t E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	100 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	101 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	102 if (!E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	103 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	104 while (E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	105 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	106 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	107 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	108 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	109 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	110 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	111 if (E -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	112 lw_free(E -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	113 lw_free(E);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	114 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	115
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	116 /* actually duplicates the entire expression */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	117 void lw_expr_add_operand(lw_expr_t E, lw_expr_t O);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	118 lw_expr_t lw_expr_copy(lw_expr_t E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	119 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	120 lw_expr_t r;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	121 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	122
43 18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity lost@l-w.ca parents: 12 diff changeset	123 if (!E)
18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity lost@l-w.ca parents: 12 diff changeset	124 return NULL;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	125 r = lw_alloc(sizeof(struct lw_expr_priv));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	126 r = E;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	127 r -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	128
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	129 if (E -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	130 r -> value2 = lw_strdup(E -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	131 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	132 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	133 lw_expr_add_operand(r, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	134 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	135
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	136 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	137 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	138
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	139 void lw_expr_add_operand(lw_expr_t E, lw_expr_t O)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	140 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	141 struct lw_expr_opers o, t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	142
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	143 o = lw_alloc(sizeof(struct lw_expr_opers));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	144 o -> p = lw_expr_copy(O);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	145 o -> next = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	146 for (t = E -> operands; t && t -> next; t = t -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	147 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	148
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	149 if (t)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	150 t -> next = o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	151 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	152 E -> operands = o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	153 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	154
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	155 lw_expr_t lw_expr_build_aux(int exprtype, va_list args)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	156 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	157 lw_expr_t r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	158 int t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	159 void *p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	160
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	161 lw_expr_t te1, te2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	162
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	163 r = lw_expr_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	164
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	165 switch (exprtype)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	166 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	167 case lw_expr_type_int:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	168 t = va_arg(args, int);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	169 r -> type = lw_expr_type_int;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	170 r -> value = t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	171 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	172
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	173 case lw_expr_type_var:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	174 p = va_arg(args, char *);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	175 r -> type = lw_expr_type_var;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	176 r -> value2 = lw_strdup(p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	177 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	178
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	179 case lw_expr_type_special:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	180 t = va_arg(args, int);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	181 p = va_arg(args, char *);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	182 r -> type = lw_expr_type_special;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	183 r -> value = t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	184 r -> value2 = p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	185 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	186
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	187 case lw_expr_type_oper:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	188 t = va_arg(args, int);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	189 te1 = va_arg(args, lw_expr_t);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	190 if (t != lw_expr_oper_com && t != lw_expr_oper_neg)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	191 te2 = va_arg(args, lw_expr_t);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	192 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	193 te2 = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	194
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	195 r -> type = lw_expr_type_oper;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	196 r -> value = t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	197 lw_expr_add_operand(r, te1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	198 if (te2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	199 lw_expr_add_operand(r, te2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	200 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	201
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	202 default:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	203 lw_error("Invalid expression type specified to lw_expr_build");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	204 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	205
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	206 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	207 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	208
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	209 lw_expr_t lw_expr_build(int exprtype, ...)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	210 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	211 va_list args;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	212 lw_expr_t r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	213
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	214 va_start(args, exprtype);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	215 r = lw_expr_build_aux(exprtype, args);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	216 va_end(args);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	217 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	218 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	219
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	220 void lw_expr_print_aux(lw_expr_t E, char *obuf, int buflen, int *bufloc)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	221 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	222 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	223 int c = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	224 char buf[256];
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	225
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	226 if (!E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	227 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	228 strcpy(buf, "(NULL)");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	229 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	230 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	231 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	232 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	233 c++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	234 lw_expr_print_aux(o -> p, obuf, buflen, bufloc);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	235 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	236
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	237 switch (E -> type)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	238 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	239 case lw_expr_type_int:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	240 if (E -> value < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	241 snprintf(buf, 256, "-%#x ", -(E -> value));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	242 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	243 snprintf(buf, 256, "%#x ", E -> value);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	244 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	245
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	246 case lw_expr_type_var:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	247 snprintf(buf, 256, "V(%s) ", (char *)(E -> value2));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	248 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	249
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	250 case lw_expr_type_special:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	251 snprintf(buf, 256, "S(%d,%p) ", E -> value, E -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	252 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	253
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	254 case lw_expr_type_oper:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	255 snprintf(buf, 256, "[%d]", c);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	256 switch (E -> value)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	257 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	258 case lw_expr_oper_plus:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	259 strcat(buf, "+ ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	260 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	261
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	262 case lw_expr_oper_minus:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	263 strcat(buf, "- ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	264 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	265
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	266 case lw_expr_oper_times:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	267 strcat(buf, "* ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	268 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	269
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	270 case lw_expr_oper_divide:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	271 strcat(buf, "/ ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	272 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	273
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	274 case lw_expr_oper_mod:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	275 strcat(buf, "% ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	276 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	277
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	278 case lw_expr_oper_intdiv:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	279 strcat(buf, "\\ ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	280 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	281
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	282 case lw_expr_oper_bwand:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	283 strcat(buf, "BWAND ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	284 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	285
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	286 case lw_expr_oper_bwor:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	287 strcat(buf, "BWOR ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	288 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	289
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	290 case lw_expr_oper_bwxor:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	291 strcat(buf, "BWXOR ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	292 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	293
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	294 case lw_expr_oper_and:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	295 strcat(buf, "AND ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	296 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	297
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	298 case lw_expr_oper_or:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	299 strcat(buf, "OR ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	300 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	301
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	302 case lw_expr_oper_neg:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	303 strcat(buf, "NEG ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	304 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	305
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	306 case lw_expr_oper_com:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	307 strcat(buf, "COM ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	308 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	309
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	310 default:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	311 strcat(buf, "OPER ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	312 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	313 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	314 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	315 default:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	316 snprintf(buf, 256, "ERR ");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	317 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	318 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	319
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	320 c = strlen(buf);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	321 if (bufloc + c >= buflen)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	322 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	323 *buflen += 128;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	324 obuf = lw_realloc(obuf, *buflen);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	325 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	326 strcpy(obuf + bufloc, buf);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	327 *bufloc += c;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	328 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	329
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	330 char *lw_expr_print(lw_expr_t E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	331 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	332 static char *obuf = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	333 static int obufsize = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	334
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	335 int obufloc = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	336
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	337 lw_expr_print_aux(E, &obuf, &obufsize, &obufloc);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	338
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	339 return obuf;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	340 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	341
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	342 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	343 Return:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	344 nonzero if expressions are the same (identical pointers or matching values)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	345 zero if expressions are not the same
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	346
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	347 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	348 int lw_expr_compare(lw_expr_t E1, lw_expr_t E2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	349 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	350 struct lw_expr_opers o1, o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	351
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	352 if (E1 == E2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	353 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	354
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	355 if (!E1 \|\| !E2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	356 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	357
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	358 if (!(E1 -> type == E2 -> type && E1 -> value == E2 -> value))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	359 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	360
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	361 if (E1 -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	362 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	363 if (!strcmp(E1 -> value2, E2 -> value2))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	364 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	365 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	366 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	367 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	368
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	369 if (E1 -> type == lw_expr_type_special)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	370 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	371 if (E1 -> value2 == E2 -> value2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	372 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	373 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	374 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	375 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	376
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	377 for (o1 = E1 -> operands, o2 = E2 -> operands; o1 && o2; o1 = o1 -> next, o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	378 if (lw_expr_compare(o1 -> p, o2 -> p) == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	379 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	380 if (o1 \|\| o2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	381 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	382
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	383 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	384 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	385
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	386 /* return true if E is an operator of type oper */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	387 int lw_expr_isoper(lw_expr_t E, int oper)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	388 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	389 if (E -> type == lw_expr_type_oper && E -> value == oper)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	390 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	391 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	392 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	393
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	394
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	395 void lw_expr_simplify_sortconstfirst(lw_expr_t E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	396 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	397 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	398
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	399 if (E -> type != lw_expr_type_oper)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	400 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	401 if (E -> value != lw_expr_oper_times && E -> value != lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	402 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	403
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	404 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	405 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	406 if (o -> p -> type == lw_expr_type_oper && (o -> p -> value == lw_expr_oper_times \|\| o -> p -> value == lw_expr_oper_plus))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	407 lw_expr_simplify_sortconstfirst(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	408 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	409
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	410 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	411 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	412 if (o -> p -> type == lw_expr_type_int && o != E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	413 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	414 struct lw_expr_opers *o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	415 for (o2 = E -> operands; o2 -> next != o; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	416 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	417 o2 -> next = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	418 o -> next = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	419 E -> operands = o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	420 o = o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	421 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	422 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	423 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	424
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	425 void lw_expr_sortoperandlist(struct lw_expr_opers **o)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	426 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	427 // fprintf(stderr, "lw_expr_sortoperandlist() not yet implemented\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	428 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	429
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	430 // return 1 if the operand lists match, 0 if not
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	431 // may re-order the argument lists
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	432 int lw_expr_simplify_compareoperandlist(struct lw_expr_opers ol1, struct lw_expr_opers ol2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	433 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	434 struct lw_expr_opers o1, o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	435
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	436 lw_expr_sortoperandlist(ol1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	437 lw_expr_sortoperandlist(ol2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	438
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	439 for (o1 = ol1, o2 = ol2; o1 && o2; o1 = o1 -> next, o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	440 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	441 if (!lw_expr_compare(o1 -> p, o2 -> p))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	442 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	443 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	444 if (o1 \|\| o2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	445 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	446 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	447 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	448
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	449 int lw_expr_simplify_isliketerm(lw_expr_t e1, lw_expr_t e2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	450 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	451 // first term is a "times"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	452 if (e1 -> type == lw_expr_type_oper && e1 -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	453 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	454 // second term is a "times"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	455 if (e2 -> type == lw_expr_type_oper && e2 -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	456 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	457 // both times - easy check
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	458 struct lw_expr_opers o1, o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	459 for (o1 = e1 -> operands; o1; o1 = o1 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	460 if (o1 -> p -> type != lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	461 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	462
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	463 for (o2 = e2 -> operands; o2; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	464 if (o2 -> p -> type != lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	465 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	466
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	467 if (lw_expr_simplify_compareoperandlist(&o1, &o2))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	468 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	469 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	470 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	471
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	472 // not a times - have to assume it's the operand list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	473 // with a "1 *" in front if it
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	474 if (!e1 -> operands -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	475 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	476 if (e1 -> operands -> next -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	477 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	478 if (!lw_expr_compare(e1 -> operands -> next -> p, e2))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	479 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	480 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	481 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	482
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	483 // e1 is not a times
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	484 if (e2 -> type == lw_expr_type_oper && e2 -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	485 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	486 // e2 is a times
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	487 if (e2 -> operands -> next -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	488 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	489 if (!lw_expr_compare(e1, e2 -> operands -> next -> p))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	490 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	491 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	492 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	493
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	494 // neither are times
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	495 if (!lw_expr_compare(e1, e2))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	496 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	497 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	498 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	499
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	500 int lw_expr_contains(lw_expr_t E, lw_expr_t E1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	501 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	502 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	503
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	504 // NULL expr contains nothing :)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	505 if (!E)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	506 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	507
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	508 if (E1 -> type != lw_expr_type_var && E1 -> type != lw_expr_type_special)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	509 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	510
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	511 if (lw_expr_compare(E, E1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	512 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	513
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	514 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	515 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	516 if (lw_expr_contains(o -> p, E1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	517 return 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	518 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	519 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	520 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	521
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	522 void lw_expr_simplify_l(lw_expr_t E, void *priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	523
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	524 void lw_expr_simplify_go(lw_expr_t E, void *priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	525 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	526 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	527
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	528 // replace subtraction with O1 + -1(O2)...
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	529 // needed for like term collection
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	530 if (E -> type == lw_expr_type_oper && E -> value == lw_expr_oper_minus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	531 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	532 for (o = E -> operands -> next; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	533 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	534 lw_expr_t e1, e2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	535
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	536 e2 = lw_expr_build(lw_expr_type_int, -1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	537 e1 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_times, e2, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	538 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	539 lw_expr_destroy(e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	540 o -> p = e1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	541 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	542 E -> value = lw_expr_oper_plus;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	543 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	544
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	545 // turn "NEG" into -1(O) - needed for like term collection
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	546 if (E -> type == lw_expr_type_oper && E -> value == lw_expr_oper_neg)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	547 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	548 lw_expr_t e1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	549
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	550 E -> value = lw_expr_oper_times;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	551 e1 = lw_expr_build(lw_expr_type_int, -1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	552 lw_expr_add_operand(E, e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	553 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	554 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	555
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	556 again:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	557 // try to resolve non-constant terms to constants here
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	558 if (E -> type == lw_expr_type_special && evaluate_special)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	559 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	560 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	561
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	562 te = evaluate_special(E -> value, E -> value2, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	563 if (lw_expr_contains(te, E))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	564 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	565 if (te)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	566 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	567 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	568 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	569 if (E -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	570 lw_free(E -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	571 E = te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	572 E -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	573
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	574 if (te -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	575 E -> value2 = lw_strdup(te -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	576 for (o = te -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	577 {
92 19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	578 lw_expr_t xxx;
19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	579 xxx = lw_expr_copy(o -> p);
19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	580 lw_expr_add_operand(E, xxx);
19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	581 lw_expr_destroy(xxx);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	582 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	583 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	584 goto again;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	585 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	586 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	587 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	588
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	589 if (E -> type == lw_expr_type_var && evaluate_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	590 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	591 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	592
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	593 te = evaluate_var(E -> value2, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	594 if (lw_expr_contains(te, E))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	595 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	596 else if (te)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	597 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	598 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	599 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	600 if (E -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	601 lw_free(E -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	602 E = te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	603 E -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	604
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	605 if (te -> type == lw_expr_type_var)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	606 E -> value2 = lw_strdup(te -> value2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	607 for (o = te -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	608 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	609 lw_expr_add_operand(E, lw_expr_copy(o -> p));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	610 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	611 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	612 goto again;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	613 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	614 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	615 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	616
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	617 // non-operators have no simplification to do!
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	618 if (E -> type != lw_expr_type_oper)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	619 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	620
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	621 // merge plus operations
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	622 if (E -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	623 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	624 tryagainplus:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	625 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	626 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	627 if (o -> p -> type == lw_expr_type_oper && o -> p -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	628 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	629 struct lw_expr_opers *o2;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	630 // we have a + operation - bring operands up
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	631
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	632 for (o2 = E -> operands; o2 && o2 -> next != o; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	633 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	634 if (o2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	635 o2 -> next = o -> p -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	636 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	637 E -> operands = o -> p -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	638 for (o2 = o -> p -> operands; o2 -> next; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	639 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	640 o2 -> next = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	641 o -> p -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	642 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	643 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	644 goto tryagainplus;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	645 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	646 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	647 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	648
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	649 // merge times operations
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	650 if (E -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	651 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	652 tryagaintimes:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	653 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	654 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	655 if (o -> p -> type == lw_expr_type_oper && o -> p -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	656 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	657 struct lw_expr_opers *o2;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	658 // we have a + operation - bring operands up
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	659
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	660 for (o2 = E -> operands; o2 && o2 -> next != o; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	661 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	662 if (o2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	663 o2 -> next = o -> p -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	664 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	665 E -> operands = o -> p -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	666 for (o2 = o -> p -> operands; o2 -> next; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	667 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	668 o2 -> next = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	669 o -> p -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	670 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	671 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	672 goto tryagaintimes;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	673 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	674 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	675 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	676
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	677 // simplify operands
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	678 for (o = E -> operands; o; o = o -> next)
200 348e2816ce32 Short ciruit some recursion in expression library William Astle <lost@l-w.ca> parents: 125 diff changeset	679 if (o -> p -> type != lw_expr_type_int)
348e2816ce32 Short ciruit some recursion in expression library William Astle <lost@l-w.ca> parents: 125 diff changeset	680 lw_expr_simplify_l(o -> p, priv);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	681
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	682 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	683 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	684 if (o -> p -> type != lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	685 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	686 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	687
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	688 if (!o)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	689 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	690 // we can do the operation here!
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	691 int tr = -42424242;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	692
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	693 switch (E -> value)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	694 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	695 case lw_expr_oper_neg:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	696 tr = -(E -> operands -> p -> value);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	697 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	698
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	699 case lw_expr_oper_com:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	700 tr = ~(E -> operands -> p -> value);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	701 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	702
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	703 case lw_expr_oper_plus:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	704 tr = E -> operands -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	705 for (o = E -> operands -> next; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	706 tr += o -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	707 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	708
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	709 case lw_expr_oper_minus:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	710 tr = E -> operands -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	711 for (o = E -> operands -> next; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	712 tr -= o -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	713 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	714
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	715 case lw_expr_oper_times:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	716 tr = E -> operands -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	717 for (o = E -> operands -> next; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	718 tr *= o -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	719 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	720
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	721 case lw_expr_oper_divide:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	722 tr = E -> operands -> p -> value / E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	723 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	724
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	725 case lw_expr_oper_mod:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	726 tr = E -> operands -> p -> value % E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	727 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	728
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	729 case lw_expr_oper_intdiv:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	730 tr = E -> operands -> p -> value / E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	731 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	732
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	733 case lw_expr_oper_bwand:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	734 tr = E -> operands -> p -> value & E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	735 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	736
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	737 case lw_expr_oper_bwor:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	738 tr = E -> operands -> p -> value \| E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	739 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	740
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	741 case lw_expr_oper_bwxor:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	742 tr = E -> operands -> p -> value ^ E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	743 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	744
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	745 case lw_expr_oper_and:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	746 tr = E -> operands -> p -> value && E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	747 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	748
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	749 case lw_expr_oper_or:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	750 tr = E -> operands -> p -> value \|\| E -> operands -> next -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	751 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	752
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	753 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	754
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	755 while (E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	756 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	757 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	758 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	759 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	760 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	761 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	762 E -> type = lw_expr_type_int;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	763 E -> value = tr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	764 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	765 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	766
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	767 if (E -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	768 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	769 lw_expr_t e1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	770 int cval = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	771
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	772 e1 = lw_expr_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	773 e1 -> operands = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	774 E -> operands = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	775
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	776 for (o = e1 -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	777 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	778 if (o -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	779 cval += o -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	780 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	781 lw_expr_add_operand(E, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	782 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	783 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	784 if (cval)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	785 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	786 e1 = lw_expr_build(lw_expr_type_int, cval);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	787 lw_expr_add_operand(E, e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	788 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	789 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	790 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	791
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	792 if (E -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	793 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	794 lw_expr_t e1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	795 int cval = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	796
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	797 e1 = lw_expr_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	798 e1 -> operands = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	799 E -> operands = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	800
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	801 for (o = e1 -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	802 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	803 if (o -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	804 cval *= o -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	805 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	806 lw_expr_add_operand(E, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	807 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	808 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	809 if (cval != 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	810 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	811 e1 = lw_expr_build(lw_expr_type_int, cval);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	812 lw_expr_add_operand(E, e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	813 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	814 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	815 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	816
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	817 if (E -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	818 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	819 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	820 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	821 if (o -> p -> type == lw_expr_type_int && o -> p -> value == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	822 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	823 // one operand of times is 0, replace operation with 0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	824 while (E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	825 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	826 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	827 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	828 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	829 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	830 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	831 E -> type = lw_expr_type_int;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	832 E -> value = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	833 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	834 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	835 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	836 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	837
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	838 // sort "constants" to the start of each operand list for + and *
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	839 if (E -> value == lw_expr_oper_plus \|\| E -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	840 lw_expr_simplify_sortconstfirst(E);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	841
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	842 // look for like terms and collect them together
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	843 if (E -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	844 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	845 struct lw_expr_opers *o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	846 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	847 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	848 // skip constants
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	849 if (o -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	850 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	851
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	852 // we have a term to match
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	853 // (o -> p) is first term
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	854 for (o2 = o -> next; o2; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	855 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	856 lw_expr_t e1, e2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	857
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	858 if (o2 -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	859 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	860
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	861 if (lw_expr_simplify_isliketerm(o -> p, o2 -> p))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	862 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	863 int coef, coef2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	864
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	865 // we have a like term here
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	866 // do something about it
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	867 if (o -> p -> type == lw_expr_type_oper && o -> p -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	868 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	869 if (o -> p -> operands -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	870 coef = o -> p -> operands -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	871 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	872 coef = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	873 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	874 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	875 coef = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	876 if (o2 -> p -> type == lw_expr_type_oper && o2 -> p -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	877 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	878 if (o2 -> p -> operands -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	879 coef2 = o2 -> p -> operands -> p -> value;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	880 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	881 coef2 = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	882 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	883 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	884 coef2 = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	885 coef += coef2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	886 e1 = lw_expr_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	887 e1 -> type = lw_expr_type_oper;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	888 e1 -> value = lw_expr_oper_times;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	889 if (coef != 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	890 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	891 e2 = lw_expr_build(lw_expr_type_int, coef);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	892 lw_expr_add_operand(e1, e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	893 lw_expr_destroy(e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	894 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	895 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	896 o -> p = e1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	897 for (o = o2 -> p -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	898 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	899 if (o -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	900 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	901 lw_expr_add_operand(e1, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	902 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	903 lw_expr_destroy(o2 -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	904 o2 -> p = lw_expr_build(lw_expr_type_int, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	905 goto again;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	906 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	907 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	908 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	909 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	910
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	911
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	912 if (E -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	913 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	914 int c = 0, t = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	915 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	916 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	917 t++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	918 if (!(o -> p -> type == lw_expr_type_int && o -> p -> value == 0))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	919 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	920 c++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	921 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	922 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	923 if (c == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	924 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	925 lw_expr_t r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	926 // find the value and "move it up"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	927 while (E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	928 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	929 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	930 if (o -> p -> type != lw_expr_type_int \|\| o -> p -> value != 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	931 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	932 r = lw_expr_copy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	933 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	934 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	935 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	936 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	937 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	938 E = r;
92 19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	939 lw_free(r);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	940 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	941 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	942 else if (c == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	943 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	944 // replace with 0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	945 while (E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	946 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	947 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	948 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	949 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	950 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	951 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	952 E -> type = lw_expr_type_int;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	953 E -> value = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	954 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	955 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	956 else if (c != t)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	957 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	958 // collapse out zero terms
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	959 struct lw_expr_opers *o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	960
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	961 for (o = E -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	962 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	963 if (o -> p -> type == lw_expr_type_int && o -> p -> value == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	964 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	965 if (o == E -> operands)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	966 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	967 E -> operands = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	968 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	969 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	970 o = E -> operands;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	971 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	972 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	973 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	974 for (o2 = E -> operands; o2 -> next == o; o2 = o2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	975 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	976 o2 -> next = o -> next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	977 lw_expr_destroy(o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	978 lw_free(o);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	979 o = o2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	980 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	981 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	982 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	983 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	984 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	985 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	986
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	987 /* handle <int> times <plus> - expand the terms - only with exactly two operands */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	988 if (E -> value == lw_expr_oper_times)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	989 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	990 lw_expr_t t1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	991 lw_expr_t E2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	992 lw_expr_t E3;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	993 if (E -> operands && E -> operands -> next && !(E -> operands -> next -> next))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	994 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	995 if (E -> operands -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	996 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	997 /* <int> TIMES <other> */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	998 E2 = E -> operands -> next -> p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	999 E3 = E -> operands -> p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1000 if (E2 -> type == lw_expr_type_oper && E2 -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1001 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1002 lw_free(E -> operands -> next);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1003 lw_free(E -> operands);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1004 E -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1005 E -> value = lw_expr_oper_plus;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1006
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1007 for (o = E2 -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1008 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1009 t1 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_times, E3, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1010 lw_expr_add_operand(E, t1);
92 19ca3108a223 Fixed numerous common memory leaks in epxression code lost@l-w.ca parents: 87 diff changeset	1011 lw_expr_destroy(t1);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1012 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1013
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1014 lw_expr_destroy(E2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1015 lw_expr_destroy(E3);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1016 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1017 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1018 else if (E -> operands -> next -> p -> type == lw_expr_type_int)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1019 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1020 /* <other> TIMES <int> */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1021 E2 = E -> operands -> p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1022 E3 = E -> operands -> next -> p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1023 if (E2 -> type == lw_expr_type_oper && E2 -> value == lw_expr_oper_plus)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1024 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1025 lw_free(E -> operands -> next);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1026 lw_free(E -> operands);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1027 E -> operands = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1028 E -> value = lw_expr_oper_plus;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1029
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1030 for (o = E2 -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1031 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1032 t1 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_times, E3, o -> p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1033 lw_expr_add_operand(E, t1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1034 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1035
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1036 lw_expr_destroy(E2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1037 lw_expr_destroy(E3);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1038 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1039 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1040 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1041 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1042 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1043
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1044 void lw_expr_simplify_l(lw_expr_t E, void *priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1045 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1046 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1047 int c;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1048
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1049 (level)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1050 // bail out if the level gets too deep
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1051 if (level >= 500 \|\| bailing)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1052 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1053 bailing = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1054 level--;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1055 if (level == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1056 bailing = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1057 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1058 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1059 do
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1060 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1061 te = lw_expr_copy(E);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1062 lw_expr_simplify_go(E, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1063 c = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1064 if (lw_expr_compare(te, E) == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1065 c = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1066 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1067 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1068 while (c);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1069 (level)--;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1070 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1071
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1072 void lw_expr_simplify(lw_expr_t E, void *priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1073 {
200 348e2816ce32 Short ciruit some recursion in expression library William Astle <lost@l-w.ca> parents: 125 diff changeset	1074 if (E -> type == lw_expr_type_int)
348e2816ce32 Short ciruit some recursion in expression library William Astle <lost@l-w.ca> parents: 125 diff changeset	1075 return;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1076 lw_expr_simplify_l(E, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1077 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1078
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1079 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1080
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1081 The following two functions are co-routines which evaluate an infix
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1082 expression. lw_expr_parse_term checks for unary prefix operators then, if
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1083 none found, passes the string off the the defined helper function to
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1084 determine what the term really is. It also handles parentheses.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1085
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1086 lw_expr_parse_expr evaluates actual expressions with infix operators. It
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1087 respects the order of operations.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1088
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1089 The end of an expression is determined by the presence of any of the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1090 following conditions:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1091
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1092 1. a NUL character
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1093 2. a whitespace character
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1094 3. a )
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1095 4. a ,
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1096 5. any character that is not recognized as a term
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1097
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1098 lw_expr_parse_term returns NULL if there is no term (end of expr, etc.)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1099
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1100 lw_expr_parse_expr returns NULL if there is no expression or on a syntax
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1101 error.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1102
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1103 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1104
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1105 lw_expr_t lw_expr_parse_expr(char *p, void priv, int prec);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1106
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1107 lw_expr_t lw_expr_parse_term(char *p, void priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1108 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1109 lw_expr_t term, term2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1110
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1111 eval_next:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1112 if (!p \|\| isspace(p) \|\| p == ')' \|\| p == ']')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1113 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1114
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1115 // parentheses
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1116 if (**p == '(')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1117 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1118 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1119 term = lw_expr_parse_expr(p, priv, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1120 if (**p != ')')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1121 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1122 lw_expr_destroy(term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1123 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1124 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1125 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1126 return term;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1127 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1128
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1129 // unary +
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1130 if (**p == '+')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1131 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1132 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1133 goto eval_next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1134 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1135
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1136 // unary - (prec 200)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1137 if (**p == '-')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1138 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1139 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1140 term = lw_expr_parse_expr(p, priv, 200);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1141 if (!term)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1142 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1143
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1144 term2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_neg, term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1145 lw_expr_destroy(term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1146 return term2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1147 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1148
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1149 // unary ^ or ~ (complement, prec 200)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1150 if (p == '^' \|\| p == '~')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1151 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1152 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1153 term = lw_expr_parse_expr(p, priv, 200);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1154 if (!term)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1155 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1156
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1157 term2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_com, term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1158 lw_expr_destroy(term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1159 return term2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1160 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1161
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1162 // non-operator - pass to caller
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1163 return parse_term(p, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1164 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1165
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1166 lw_expr_t lw_expr_parse_expr(char *p, void priv, int prec)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1167 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1168 static const struct operinfo
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1169 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1170 int opernum;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1171 char *operstr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1172 int operprec;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1173 } operators[] =
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1174 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1175 { lw_expr_oper_plus, "+", 100 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1176 { lw_expr_oper_minus, "-", 100 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1177 { lw_expr_oper_times, "*", 150 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1178 { lw_expr_oper_divide, "/", 150 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1179 { lw_expr_oper_mod, "%", 150 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1180 { lw_expr_oper_intdiv, "\\", 150 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1181
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1182 { lw_expr_oper_and, "&&", 25 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1183 { lw_expr_oper_or, "\|\|", 25 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1184
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1185 { lw_expr_oper_bwand, "&", 50 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1186 { lw_expr_oper_bwor, "\|", 50 },
125 db5690682eb7 Added ! as a synomym for bitwise or (\|) William Astle <lost@l-w.ca> parents: 92 diff changeset	1187 { lw_expr_oper_bwor, "!", 50 },
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1188 { lw_expr_oper_bwxor, "^", 50 },
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1189
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1190 { lw_expr_oper_none, "", 0 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1191 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1192
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1193 int opern, i;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1194 lw_expr_t term1, term2, term3;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1195
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1196 if (!p \|\| isspace(p) \|\| p == ')' \|\| p == ',' \|\| **p == ']')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1197 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1198
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1199 term1 = lw_expr_parse_term(p, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1200 if (!term1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1201 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1202
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1203 eval_next:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1204 if (!p \|\| isspace(p) \|\| p == ')' \|\| p == ',' \|\| **p == ']')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1205 return term1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1206
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1207 // expecting an operator here
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1208 for (opern = 0; operators[opern].opernum != lw_expr_oper_none; opern++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1209 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1210 for (i = 0; (p)[i] && operators[opern].operstr[i] && ((p)[i] == operators[opern].operstr[i]); i++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1211 /* do nothing */;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1212 if (operators[opern].operstr[i] == '\0')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1213 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1214 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1215
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1216 if (operators[opern].opernum == lw_expr_oper_none)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1217 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1218 // unrecognized operator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1219 lw_expr_destroy(term1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1220 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1221 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1222
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1223 // operator number is in opern, length of oper in i
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1224
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1225 // logic:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1226 // if the precedence of this operation is <= to the "prec" flag,
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1227 // we simply return without advancing the input pointer; the operator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1228 // will be evaluated again in the enclosing function call
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1229 if (operators[opern].operprec <= prec)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1230 return term1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1231
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1232 // logic:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1233 // we have a higher precedence operator here so we will advance the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1234 // input pointer to the next term and let the expression evaluator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1235 // loose on it after which time we will push our operator onto the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1236 // stack and then go on with the expression evaluation
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1237 (*p) += i;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1238
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1239 // evaluate next expression(s) of higher precedence
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1240 term2 = lw_expr_parse_expr(p, priv, operators[opern].operprec);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1241 if (!term2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1242 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1243 lw_expr_destroy(term1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1244 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1245 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1246
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1247 // now create operator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1248 term3 = lw_expr_build(lw_expr_type_oper, operators[opern].opernum, term1, term2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1249 lw_expr_destroy(term1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1250 lw_expr_destroy(term2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1251
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1252 // the new "expression" is the next "left operand"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1253 term1 = term3;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1254
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1255 // continue evaluating
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1256 goto eval_next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1257 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1258
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1259 lw_expr_t lw_expr_parse(char *p, void priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1260 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1261 return lw_expr_parse_expr(p, priv, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1262 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1263
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1264 int lw_expr_testterms(lw_expr_t e, lw_expr_testfn_t fn, void priv)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1265 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1266 struct lw_expr_opers *o;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1267 int r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1268
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1269 for (o = e -> operands; o; o = o -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1270 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1271 r = lw_expr_testterms(o -> p, fn, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1272 if (r)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1273 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1274 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1275 return (fn)(e, priv);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1276 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1277
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1278 int lw_expr_type(lw_expr_t e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1279 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1280 return e -> type;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1281 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1282
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1283 void *lw_expr_specptr(lw_expr_t e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1284 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1285 return e -> value2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1286 }
12 6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1287
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1288 int lw_expr_operandcount(lw_expr_t e)
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1289 {
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1290 int count = 0;
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1291 struct lw_expr_opers *o;
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1292
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1293 if (e -> type != lw_expr_type_oper)
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1294 return 0;
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1295
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1296 for (o = e -> operands; o; o = o -> next)
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1297 count++;
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1298
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1299 return count;
6b9991fb39b6 Brought forward patch to fix bug with complex external references generating invalid relocations in the object file lost@l-w.ca parents: 2 diff changeset	1300 }

Mercurial > hg > index.cgi

annotate lwlib/lw_expr.c @ 207:07e1fac76321