view lwlib/lw_stringlist.c @ 460:3d53f2e8d0e0

Allow macros to shadow instructions that are not supported by current CPU. When assembling in 6809 mode, 6309 instructions should be usable as macros. When assembling in 6309 mode, instructions not valid on the 6309 should be usable as macros.
author William Astle <lost@l-w.ca>
date Wed, 28 Feb 2018 20:43:14 -0700
parents a1a88a8ddc98
children
line wrap: on
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/*
lw_stringlist.c

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/>.
*/

#include <stdlib.h>

#define ___lw_stringlist_c_seen___
#include "lw_stringlist.h"
#include "lw_string.h"
#include "lw_alloc.h"

lw_stringlist_t lw_stringlist_create(void)
{
	lw_stringlist_t s;
	
	
	s = lw_alloc(sizeof(struct lw_stringlist_priv));
	s -> strings = NULL;
	s -> nstrings = 0;
	s -> cstring = 0;
	
	return s;
}

void lw_stringlist_destroy(lw_stringlist_t S)
{
	if (S)
	{
		int i;
		for (i = 0; i < S -> nstrings; i++)
		{
			lw_free(S -> strings[i]);
		}
		lw_free(S -> strings);
		lw_free(S);
	}
}

void lw_stringlist_addstring(lw_stringlist_t S, char *str)
{
	S -> strings = lw_realloc(S -> strings, sizeof(char *) * (S -> nstrings + 1));
	S -> strings[S -> nstrings] = lw_strdup(str);
	S -> nstrings++;
}

void lw_stringlist_reset(lw_stringlist_t S)
{
	S -> cstring = 0;
}

char *lw_stringlist_current(lw_stringlist_t S)
{
	if (S -> cstring >= S -> nstrings)
		return NULL;
	return S -> strings[S -> cstring];
}

char *lw_stringlist_next(lw_stringlist_t S)
{
	S -> cstring++;
	return lw_stringlist_current(S);
}

int lw_stringlist_nstrings(lw_stringlist_t S)
{
	return S -> nstrings;
}

lw_stringlist_t lw_stringlist_copy(lw_stringlist_t S)
{
	lw_stringlist_t r;
	
	r = lw_alloc(sizeof(lw_stringlist_t));
	r -> nstrings = S -> nstrings;
	if (S -> nstrings)
	{
		int i;
		
		r -> strings = lw_alloc(sizeof(char *) * S -> nstrings);
		for (i = 0; i < S -> nstrings; i++)
		{
			r -> strings[i] = lw_strdup(S -> strings[i]);
		}
	}
	return r;
}