Initial revision
This commit is contained in:
Felix Geyer
541
amxmodx/string.cpp
Executable file
541
amxmodx/string.cpp
Executable file
@@ -0,0 +1,541 @@
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/*
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* Copyright (c) 2002-2003 Aleksander Naszko
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*
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* This file is part of AMX Mod.
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*
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* AMX Mod is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* AMX Mod is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 AMX Mod; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* In addition, as a special exception, the author gives permission to
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* link the code of this program with the Half-Life Game Engine ("HL
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* Engine") and Modified Game Libraries ("MODs") developed by Valve,
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* L.L.C ("Valve"). You must obey the GNU General Public License in all
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* respects for all of the code used other than the HL Engine and MODs
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* from Valve. If you modify this file, you may extend this exception
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* to your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from your
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* version.
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*
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*/
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#include <extdll.h>
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#include <meta_api.h>
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#include <ctype.h>
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#include "amxmod.h"
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const char* stristr(const char* str,const char* substr)
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{
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register char *needle = (char *)substr;
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register char *prevloc = (char *)str;
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register char *haystack = (char *)str;
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while (*haystack) {
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if (tolower(*haystack) == tolower(*needle)) {
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haystack++;
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if (!*++needle)
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return prevloc;
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}
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else {
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haystack = ++prevloc;
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needle = (char *)substr;
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}
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}
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return NULL;
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}
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char* format_amxstring(AMX *amx, cell *params, int parm,int& len)
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{
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static char buffer[2][3072];
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static char format[16];
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char *ptr,*arg;
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char *dest = *buffer;
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cell *src = get_amxaddr(amx, params[parm++]);
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int numparam = *params/sizeof(cell);
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while(*src) {
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if (*src=='%'&&*(src+1)) {
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ptr = format;
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*ptr++ = *src++;
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if (*src=='%'){
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*dest++=*src++;
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continue;
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}
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while (!isalpha(*ptr++=*src++))
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;
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*ptr=0;
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if (numparam < parm) continue;
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arg = buffer[1];
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switch(*(ptr-1)){
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case 's': sprintf(arg,format,get_amxstring(amx, params[parm++],2,len)); break;
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case 'f': case 'g': sprintf(arg,format,*(float*)get_amxaddr(amx, params[parm++])); break;
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default: sprintf(arg,format,(int)*get_amxaddr(amx, params[parm++]));
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}
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while(*arg) *dest++=*arg++;
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continue;
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}
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*dest++=*src++;
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}
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*dest=0;
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len = dest - *buffer;
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return *buffer;
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}
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int amxstring_len(cell* a)
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{
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register int c = 0;
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while( a[ c ] )
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++c;
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return c;
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}
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cell* get_amxaddr(AMX *amx,cell amx_addr)
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{
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return (cell *)(amx->base + (int)(((AMX_HEADER *)amx->base)->dat + amx_addr));
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}
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int set_amxstring(AMX *amx,cell amx_addr,const char *source,int max)
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{
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cell* dest = (cell *)(amx->base + (int)(((AMX_HEADER *)amx->base)->dat + amx_addr));
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cell* start = dest;
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while (max--&&*source)
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*dest++=(cell)*source++;
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*dest = 0;
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return dest-start;
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}
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char* get_amxstring(AMX *amx,cell amx_addr,int id, int& len)
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{
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static char buffor[4][3072];
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register cell* source = (cell *)(amx->base + (int)(((AMX_HEADER *)amx->base)->dat + amx_addr));
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register char* dest = buffor[id];
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char* start = dest;
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while (*dest++=(char)*source++)
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;
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len = --dest - start;
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return start;
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}
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void copy_amxmemory(cell* dest,cell* src,int len)
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{
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while (len--)
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*dest++=*src++;
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}
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char* parse_arg(char** line,int& state)
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{
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static char arg[3072];
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char* dest = arg;
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state = 0;
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while(**line) {
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if ( isspace(**line) ) {
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if (state == 1)
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break;
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else if (!state) {
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(*line)++;
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continue;
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}
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}
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else if (state != 2)
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state = 1;
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if (**line=='"') {
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(*line)++;
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if (state == 2)
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break;
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state = 2;
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continue;
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}
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*dest++ = *(*line)++;
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}
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*dest = '\0';
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return arg;
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}
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static cell AMX_NATIVE_CALL replace(AMX *amx, cell *params) /* 4 param */
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{
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static char buffor[3072];
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cell *a = get_amxaddr(amx,params[1]);
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cell *b = get_amxaddr(amx,params[3]);
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cell *c = get_amxaddr(amx,params[4]);
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int iMain = amxstring_len(a);
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int iWhat = amxstring_len(b);
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int iWith = amxstring_len(c);
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int iPot = iMain + iWith - iWhat;
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if (iPot>=params[2]){
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amx_RaiseError(amx,AMX_ERR_NATIVE);
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return 0;
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}
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char *d = buffor;
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cell *x, *y, *z = a, *l = a;
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int p = 0;
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while(*a){
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if (*a==*b){
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x=a+1;
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y=b+1;
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p=1;
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if (!*y) break;
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while(*x==*y){
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x++; y++; p++;
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if (!*y) break;
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}
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if (!*y) break;
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p = 0;
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*d++=(char)*a++;
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continue;
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}
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*d++=(char)*a++;
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}
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if (p){
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while(*c) *d++=(char)*c++;
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a+=p;
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while(*a) *d++=(char)*a++;
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*d=0;
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d = buffor;
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while(*d) *z++=*d++;
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*z=0;
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return (z-l);
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}
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return 0;
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}
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static cell AMX_NATIVE_CALL contain(AMX *amx, cell *params) /* 2 param */
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{
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register cell *a = get_amxaddr(amx,params[2]);
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register cell *b = get_amxaddr(amx,params[1]);
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register cell *c = b;
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cell* str = b;
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cell* substr = a;
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while (*c) {
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if (*c == *a) {
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c++;
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if (!*++a)
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return b - str;
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}
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else {
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c = ++b;
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a = substr;
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}
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}
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return -1;
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}
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static cell AMX_NATIVE_CALL containi(AMX *amx, cell *params) /* 2 param */
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{
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register cell *a = get_amxaddr(amx,params[2]);
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register cell *b = get_amxaddr(amx,params[1]);
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register cell *c = b;
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cell* str = b;
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cell* substr = a;
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while (*c) {
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if (tolower(*c) == tolower(*a)) {
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c++;
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if (!*++a)
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return b - str;
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}
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else {
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c = ++b;
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a = substr;
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}
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}
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return -1;
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}
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static cell AMX_NATIVE_CALL strtonum(AMX *amx, cell *params) /* 1 param */
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{
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int iLen;
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return atoi(get_amxstring(amx,params[1],0,iLen));
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}
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static cell AMX_NATIVE_CALL numtostr(AMX *amx, cell *params) /* 3 param */
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{
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char szTemp[32];
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sprintf(szTemp,"%d",(int)params[1]);
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return set_amxstring(amx,params[2],szTemp,params[3]);
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}
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static cell AMX_NATIVE_CALL add(AMX *amx, cell *params) /* 4 param */
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{
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cell *src = get_amxaddr(amx,params[3]);
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cell *dest = get_amxaddr(amx,params[1]);
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cell *start = dest;
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int c = params[2], d = params[4];
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while(*dest&&c--)
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++dest;
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if (d){
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while(c--&&d--&&*src)
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*dest++=*src++;
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*dest=0;
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return (dest-start);
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}
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while(c--&&*src)
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*dest++=*src++;
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*dest=0;
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return (dest-start);
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}
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static cell AMX_NATIVE_CALL copy(AMX *amx, cell *params) /* 4 param */
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{
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cell *src = get_amxaddr(amx,params[3]);
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cell *dest = get_amxaddr(amx,params[1]);
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cell *start = dest;
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int c = params[2];
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while(c--&&*src)
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*dest++=*src++;
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*dest=0;
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return (dest-start);
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}
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static cell AMX_NATIVE_CALL copyc(AMX *amx, cell *params) /* 4 param */
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{
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cell *src = get_amxaddr(amx,params[3]);
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cell *dest = get_amxaddr(amx,params[1]);
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cell *start = dest;
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int c = params[2];
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cell ch = params[4];
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while(c--&&*src&&*src!=ch)
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*dest++=*src++;
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*dest=0;
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return (dest-start);
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}
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static cell AMX_NATIVE_CALL setc(AMX *amx, cell *params) /* 4 param */
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{
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cell *src = get_amxaddr(amx,params[1]);
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int c = params[2];
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cell ch = params[3];
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while(c--)
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*src++=ch;
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return 1;
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}
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static cell AMX_NATIVE_CALL equal(AMX *amx, cell *params) /* 3 param */
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{
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cell *a = get_amxaddr(amx,params[1]);
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cell *b = get_amxaddr(amx,params[2]);
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int c = params[3];
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if (c) {
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while (--c&&*a&&(*a==*b))
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++a, ++b;
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return (*a-*b)?0:1;
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}
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int ret;
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while(!(ret=*a-*b)&&*b)
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++a, ++b;
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return ret?0:1;
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}
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static cell AMX_NATIVE_CALL equali(AMX *amx, cell *params) /* 3 param */
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{
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cell *a = get_amxaddr(amx,params[1]);
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cell *b = get_amxaddr(amx,params[2]);
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int f,l, c = params[3];
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if (c) {
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do {
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f = tolower(*a++);
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l = tolower(*b++);
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}
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while (--c &&l&&f&& f==l);
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return(f - l)?0:1;
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}
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do {
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f = tolower(*a++);
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l = tolower(*b++);
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} while (f && f == l);
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return (f - l)?0:1;
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}
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static cell AMX_NATIVE_CALL format(AMX *amx, cell *params) /* 3 param */
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{
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int len;
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return set_amxstring(amx,params[1],format_amxstring(amx,params,3,len),params[2]);
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}
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static cell AMX_NATIVE_CALL parse(AMX *amx, cell *params) /* 3 param */
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{
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int inum = *params/sizeof(cell), iarg = 2, c;
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char* arg, *parse = get_amxstring(amx,params[1],0,c);
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cell *cptr;
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int state;
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while(*parse){
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arg = parse_arg(&parse,state);
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if (state){
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if (inum <= iarg)
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return( (iarg-2)>>1 );
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cptr = get_amxaddr(amx,params[iarg++]);
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c = *get_amxaddr(amx,params[iarg++]);
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while(c--&&*arg)
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*cptr++=(cell)*arg++;
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*cptr=0;
|
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}
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}
|
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|
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return( (iarg-2)>>1 );
|
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}
|
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|
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static cell AMX_NATIVE_CALL strtolower(AMX *amx, cell *params) /* 1 param */
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{
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cell *cptr = get_amxaddr(amx,params[1]);
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cell *begin = cptr;
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while(*cptr){
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*cptr = tolower(*cptr);
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cptr++;
|
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}
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return cptr - begin;
|
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}
|
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|
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static cell AMX_NATIVE_CALL strtoupper(AMX *amx, cell *params) /* 1 param */
|
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{
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cell *cptr = get_amxaddr(amx,params[1]);
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cell *begin = cptr;
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while(*cptr){
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*cptr = toupper(*cptr);
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cptr++;
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}
|
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return cptr - begin;
|
||||
}
|
||||
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int fo_numargs(AMX *amx)
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{
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unsigned char *data =amx->base+(int)((AMX_HEADER *)amx->base)->dat;
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cell bytes= * (cell *)(data+(int)amx->frm+2*sizeof(cell));
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return (int)(bytes/sizeof(cell));
|
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}
|
||||
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||||
int fo_getargnum(AMX *amx, int pos)
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{
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unsigned char *data =amx->base+(int)((AMX_HEADER *)amx->base)->dat;
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cell value = * (cell *)(data+(int)amx->frm+(pos+3)*sizeof(cell));
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return *(cell *)(data+(int)value);
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}
|
||||
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float fo_getargfloat(AMX *amx, int pos)
|
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{
|
||||
unsigned char *data =amx->base+(int)((AMX_HEADER *)amx->base)->dat;
|
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cell value = * (cell *)(data+(int)amx->frm+(pos+3)*sizeof(cell));
|
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cell number = *(cell *)(data+(int)value);
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return *(float *)((void *)&number);
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}
|
||||
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char* fo_getargstr(AMX *amx, int swap, int pos)
|
||||
{
|
||||
unsigned char *data =amx->base+(int)((AMX_HEADER *)amx->base)->dat;
|
||||
cell src_value= * (cell *)(data+(int)amx->frm+(pos+3)*sizeof(cell));
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cell value;
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||||
static char buffer[2][3072];
|
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char* b = buffer[swap];
|
||||
int a = 0;
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do {
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value = src_value + a++ * sizeof(cell);
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||||
value = *(cell *)(data+(int)value);
|
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*b++ = value;
|
||||
} while (value);
|
||||
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return buffer[swap];
|
||||
}
|
||||
|
||||
char* format_arguments(AMX *amx, int parm,int& len)
|
||||
{
|
||||
static char buffer[2][3072];
|
||||
static char format[16];
|
||||
char *ptr,*arg, *dest = *buffer;
|
||||
char *src = fo_getargstr(amx, 0,parm++);
|
||||
int numparam = fo_numargs(amx);
|
||||
while(*src) {
|
||||
if (*src=='%'&&*(src+1)) {
|
||||
ptr = format;
|
||||
*ptr++ = *src++;
|
||||
if (*src=='%'){
|
||||
*dest++=*src++;
|
||||
continue;
|
||||
}
|
||||
while (!isalpha(*ptr++=*src++))
|
||||
;
|
||||
*ptr='\0';
|
||||
if (numparam < parm) continue;
|
||||
arg = buffer[1];
|
||||
switch(*(ptr-1)){
|
||||
case 's': sprintf(arg,format,fo_getargstr(amx,1, parm++)); break;
|
||||
case 'f': case 'g': sprintf(arg,format,fo_getargfloat(amx, parm++)); break;
|
||||
default: sprintf(arg,format,fo_getargnum(amx, parm++));
|
||||
}
|
||||
while(*arg) *dest++=*arg++;
|
||||
continue;
|
||||
}
|
||||
*dest++=*src++;
|
||||
}
|
||||
*dest='\0';
|
||||
len = dest - *buffer;
|
||||
return *buffer;
|
||||
}
|
||||
|
||||
static cell AMX_NATIVE_CALL format_args(AMX *amx, cell *params)
|
||||
{
|
||||
int len;
|
||||
int pos = params[3];
|
||||
if (pos < 0){
|
||||
amx_RaiseError(amx,AMX_ERR_NATIVE);
|
||||
return 0;
|
||||
}
|
||||
char* string = format_arguments(amx, pos ,len); // indexed from 0
|
||||
return set_amxstring(amx,params[1],string,params[2]);
|
||||
}
|
||||
|
||||
static cell AMX_NATIVE_CALL is_digit(AMX *amx, cell *params)
|
||||
{
|
||||
return isdigit( params[1] );
|
||||
}
|
||||
|
||||
static cell AMX_NATIVE_CALL is_alnum(AMX *amx, cell *params)
|
||||
{
|
||||
return isalnum( params[1] );
|
||||
}
|
||||
|
||||
static cell AMX_NATIVE_CALL is_space(AMX *amx, cell *params)
|
||||
{
|
||||
return isspace( params[1] );
|
||||
}
|
||||
|
||||
static cell AMX_NATIVE_CALL is_alpha(AMX *amx, cell *params)
|
||||
{
|
||||
return isalpha( params[1] );
|
||||
}
|
||||
|
||||
AMX_NATIVE_INFO string_Natives[] = {
|
||||
{ "add", add },
|
||||
{ "contain", contain },
|
||||
{ "containi", containi },
|
||||
{ "copy", copy },
|
||||
{ "copyc", copyc },
|
||||
{ "equal", equal },
|
||||
{ "equali", equali },
|
||||
{ "format", format },
|
||||
{ "format_args", format_args },
|
||||
{ "isdigit", is_digit },
|
||||
{ "isalnum", is_alnum },
|
||||
{ "isspace", is_space },
|
||||
{ "isalpha", is_alpha },
|
||||
{ "numtostr", numtostr },
|
||||
{ "num_to_str", numtostr },
|
||||
{ "parse", parse },
|
||||
{ "replace", replace },
|
||||
{ "setc", setc },
|
||||
{ "strtolower", strtolower },
|
||||
{ "strtonum", strtonum },
|
||||
{ "strtoupper", strtoupper },
|
||||
{ "str_to_num", strtonum },
|
||||
{ NULL, NULL }
|
||||
};
|
||||
Reference in New Issue
Block a user