133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
/*
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bi_string.c
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CSQC string builtins
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/csqc.h"
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#include "QF/progs.h"
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#include "QF/zone.h"
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/*
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bi_String_ReplaceChar
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Repalces a special character in a string with another
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*/
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static void
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bi_String_ReplaceChar (progs_t *pr)
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{
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char old = P_INT (pr, 0);
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char new = P_INT (pr, 1);
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const char *src = P_STRING (pr, 2);
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const char *s;
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char *dst = Hunk_TempAlloc (strlen (src) + 1);
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char *d;
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for (d = dst, s = src; *s; d++, s++) {
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if (*s == old)
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*d = new;
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else
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*d = *s;
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}
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RETURN_STRING (pr, dst);
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}
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/*
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bi_String_Cut
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Cuts a specified part from a string
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*/
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static void
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bi_String_Cut (progs_t *pr)
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{
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char pos = P_INT (pr, 0);
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char len = P_INT (pr, 1);
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const char *str = P_STRING (pr, 2);
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char *dst = Hunk_TempAlloc ((strlen (str) - len) + 1);
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int cnt;
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memset (dst, 0, (strlen (str) - len) + 1);
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strncpy(dst, str, pos);
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str += pos;
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for (cnt = 0; cnt < len; cnt++)
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str++;
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strcpy(dst, str);
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RETURN_STRING (pr, dst);
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}
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/*
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bi_String_Len
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Gives back the length of the string
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*/
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static void
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bi_String_Len (progs_t *pr)
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{
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const char *str = P_STRING (pr, 0);
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R_INT (pr) = strlen(str);
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}
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/*
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bi_String_GetChar
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Gives the intervalue of a character in
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a string
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*/
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static void
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bi_String_GetChar (progs_t *pr)
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{
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const char *str = P_STRING (pr, 0);
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int pos = P_INT (pr, 1);
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int ret = 0;
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if(pos > 0 && pos < strlen(str)) {
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ret = (int)str[pos];
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}
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R_INT (pr) = ret;
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}
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void
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String_Progs_Init (progs_t *pr)
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{
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PR_AddBuiltin (pr, "String_ReplaceChar", bi_String_ReplaceChar, -1);
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PR_AddBuiltin (pr, "String_Cut", bi_String_Cut, -1);
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PR_AddBuiltin (pr, "String_Len", bi_String_Len, -1);
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PR_AddBuiltin (pr, "String_GetChar", bi_String_GetChar, -1);
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}
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