--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwbasic/attic/lwbasic.h	Thu Dec 22 18:03:38 2011 -0700
@@ -0,0 +1,148 @@
+/*
+lwbasic.h
+
+Copyright © 2011 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+definitions used throughout lwbasic
+*/
+
+#ifndef __lwbasic_h_seen__
+#define __lwbasic_h_seen__
+
+#include <stdint.h>
+
+#include "symtab.h"
+
+/* note: integer and uinteger will be the same for positive values from 0
+through 0x7FFFFFFF; the unsigned type should be used for doing ascii
+conversions and then if a negative value was discovered, it should be
+negated IFF it is in range. */
+
+union lexer_numbers
+{
+	uint32_t uinteger;
+	int32_t integer;
+};
+
+typedef struct
+{
+	char *output_file;
+	char *input_file;
+	
+	int debug_level;
+
+	char *lexer_token_string;
+	union lexer_numbers lexer_token_number;
+	int lexer_token;
+	int lexer_curchar;
+	int lexer_ignorechar;
+	int expression;	
+	int parser_state;
+	
+	void *input_state;
+	
+	char *currentsub;
+	symtab_t *global_syms;
+	symtab_t *local_syms;
+	int returntype;
+	int framesize;
+} cstate;
+
+/* parser states */
+enum
+{
+	parser_state_global = 0,			/* only global decls allowed */
+	parser_state_error
+};
+
+/* token types */
+enum
+{
+	token_kw_sub,				/* SUB keyword */
+	token_kw_function,			/* FUNCTION keyword */
+	token_kw_as,				/* AS keyword */
+	token_kw_public,			/* PUBLIC keyword */
+	token_kw_private,			/* PRIVATE keyword */
+	token_kw_params,			/* PARAMS keyword */
+	token_kw_returns,			/* RETURNS keyword */
+	token_kw_integer,			/* INTEGER keyword */
+	token_kw_endsub,			/* ENDSUB keyword */
+	token_kw_endfunction,		/* ENDFUNCTION keyword */
+	token_kw_dim,				/* DIM keyword */
+	token_op_assignment,		/* assignment operator */
+	token_op_equality,			/* equality test */
+	token_op_greater,			/* greater than */
+	token_op_less,				/* less than */
+	token_op_greaterequal,		/* greater or equal */
+	token_op_lessequal,			/* less or equal */
+	token_op_notequal,			/* not equal */
+	token_op_and,				/* boolean and */
+	token_op_or,				/* boolean or */
+	token_op_xor,				/* boolean exlusive or */
+	token_op_band,				/* bitwise and */
+	token_op_bor,				/* bitwise or */
+	token_op_bxor,				/* bitwise xor */
+	token_op_plus,				/* plus */
+	token_op_minus,				/* minus */
+	token_op_times,				/* times */
+	token_op_divide,			/* divide */
+	token_op_modulus,			/* modulus */
+	token_op_oparen,			/* open paren */
+	token_op_cparen,			/* close paren */
+	token_op_not,				/* boolean not */
+	token_op_bnot,				/* bitwise not */
+	token_identifier,			/* an identifier (variable, function, etc. */
+	token_char,					/* single character; fallback */
+	token_uint,					/* unsigned integer up to 32 bits */
+	token_int,					/* signed integer up to 32 bits */
+	token_eol,					/* end of line */
+	token_eof					/* end of file */
+};
+
+/* symbol types */
+enum
+{
+	symtype_sub,				/* "sub" (void function) */
+	symtype_func,				/* function (nonvoid) */
+	symtype_param,				/* function parameter */
+	symtype_var					/* variable */
+};
+
+#ifndef __input_c_seen__
+extern int input_getchar(cstate *state);
+#endif
+
+#ifndef __main_c_seen__
+extern void lwb_error(const char *fmt, ...);
+#endif
+
+#ifndef __lexer_c_seen__
+extern void lexer(cstate *state);
+extern char *lexer_return_token(cstate *state);
+extern char *lexer_token_name(int token);
+#endif
+
+#ifndef __emit_c_seen__
+extern void emit_prolog(cstate *state, int vis);
+extern void emit_epilog(cstate *state);
+#endif
+
+
+#endif /* __lwbasic_h_seen__ */