view lwasm/input.h @ 555:bbc600db5016

Add \Ln and {Ln} standing for the length of the specified argument in macros It seems useful to be able to identify the length of a macro argument. Add argument expansion syntax replaced with the length of the specified argument: \Ln or {Ln} will return the length of the nth argument, or zero if there is no nth argument. Argument 0 is the macro name.
author William Astle <lost@l-w.ca>
date Sun, 23 Jul 2023 17:07:58 -0600
parents dd9c5cef2e80
children
line wrap: on
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/*
input.h

Copyright © 2010 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/>.
*/

#ifndef ___input_h_seen___
#define ___input_h_seen___

#include "lwasm.h"

typedef struct
{
  int magic;
} input_stack_entry;

void input_stack_push(asmstate_t *as, input_stack_entry *se);
input_stack_entry *input_stack_pop(asmstate_t *as, int magic, int (*fn)(input_stack_entry *e, void *data), void *data);

void input_init(asmstate_t *as);
void input_openstring(asmstate_t *as, char *s, char *str);
void input_open(asmstate_t *as, char *s);
char *input_readline(asmstate_t *as);
char *input_curspec(asmstate_t *as);
FILE *input_open_standalone(asmstate_t *as, char *s, char **rfn);
int input_isinclude(asmstate_t *as);

struct ifl
{
	const char *fn;
	struct ifl *next;
};

extern struct ifl *ifl_head;

#endif