mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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* sactstring.c: SACTの文字列操作関連
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*
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* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
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* 1998- <masaki-c@is.aist-nara.ac.jp>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* $Id: sactstring.c,v 1.1 2003/11/09 15:06:12 chikama Exp $ */
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "portab.h"
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#include "system.h"
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#include "list.h"
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#include "variable.h"
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// 文字列置換用
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typedef struct {
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char *src; // 置き換え元文字列
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char *dst; // 置き換え文字列
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} strexchange_t;
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#define DEFSTACKSIZE 100
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static char **stack; // stack本体
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static int idx; // stack pointer
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static int idxmax; // stack pointerの最大
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// 文字列置き換え用 (表示時にon-the-flyで変換して表示)
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#define REPLACEBUFSIZE 3000
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static char repbuf[2][REPLACEBUFSIZE];
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static SList *strreplace;
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static char *replacesrc;
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static char *replacedst;
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/**
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* 文字列変数スタックの初期化
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*/
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void nt_sstr_init(void) {
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stack = malloc(sizeof(char *) * DEFSTACKSIZE);
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idx = 0;
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idxmax = DEFSTACKSIZE;
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}
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void nt_sstr_reset(void) {
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for (int i = 0; i < idx; i++)
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free(stack[i]);
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idx = 0;
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free(stack);
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stack = NULL;
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for (SList *l = strreplace; l; l = l->next) {
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strexchange_t *ex = l->data;
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free(ex->src);
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free(ex->dst);
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free(ex);
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}
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slist_free(strreplace);
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strreplace = NULL;
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}
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/**
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* 文字列の置き換え
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* @param sstrno: 変換元文字列変数番号
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* @param dstrno: 変換先文字列変数番号
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*/
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void nt_sstr_regist_replace(char *sstr, char *dstr) {
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strexchange_t *ex;
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if (sstr == dstr) return;
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ex = malloc(sizeof(strexchange_t));
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ex->src = sstr;
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ex->dst = dstr;
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strreplace = slist_append(strreplace, ex);
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}
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// 文字列の置き換え処理
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static void replacestr_cb(void* data, void* userdata) {
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strexchange_t *ex = (strexchange_t *)data;
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char *start, *next, *out;
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if (ex == NULL) return;
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start = replacesrc;
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out = replacedst;
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while (true) {
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next = strstr(start, ex->src);
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if (next == NULL) break;
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strncat(out, start, (size_t)(next - start));
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strncat(out, ex->dst, max(0, (REPLACEBUFSIZE - (int)strlen(out))));
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start = next + strlen(ex->src);
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}
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strncat(out, start, max(0, REPLACEBUFSIZE - (int)strlen(out)));
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replacedst = replacesrc;
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replacesrc = out;
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replacedst[0] = '\0';
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}
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// 文字列の置き換え
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char *nt_sstr_replacestr(char *msg) {
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if (strreplace == NULL) return msg;
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repbuf[0][0] = '\0';
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repbuf[1][0] = '\0';
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strncpy(repbuf[0], msg, REPLACEBUFSIZE);
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replacesrc = repbuf[0];
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replacedst = repbuf[1];
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slist_foreach(strreplace, replacestr_cb, NULL);
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return (repbuf[0][0] == '\0') ? repbuf[1] : repbuf[0];
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}
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