mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-12-27 15:25:36 +03:00
337 lines
7.1 KiB
C++
337 lines
7.1 KiB
C++
// vim: set ts=4 sw=4 tw=99 noet:
|
|
//
|
|
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
|
|
// Copyright (C) The AMX Mod X Development Team.
|
|
//
|
|
// This software is licensed under the GNU General Public License, version 3 or higher.
|
|
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
|
|
// https://alliedmods.net/amxmodx-license
|
|
|
|
//
|
|
// Regular Expressions Module
|
|
//
|
|
|
|
#include <string.h>
|
|
#include "pcre.h"
|
|
#include "amxxmodule.h"
|
|
#include <am-vector.h>
|
|
#include <am-utility.h>
|
|
#include "CRegEx.h"
|
|
#include "utils.h"
|
|
|
|
ke::Vector<RegEx *> PEL;
|
|
|
|
int GetPEL()
|
|
{
|
|
for (int i=0; i<(int)PEL.length(); i++)
|
|
{
|
|
if (PEL[i]->isFree())
|
|
return i;
|
|
}
|
|
|
|
RegEx *x = new RegEx();
|
|
PEL.append(x);
|
|
|
|
return (int)PEL.length() - 1;
|
|
}
|
|
|
|
// native Regex:regex_compile(const pattern[], &ret, error[], maxLen, const flags[]="");
|
|
static cell AMX_NATIVE_CALL regex_compile(AMX *amx, cell *params)
|
|
{
|
|
int len;
|
|
const char *regex = MF_GetAmxString(amx, params[1], 0, &len);
|
|
const char *flags = MF_GetAmxString(amx, params[5], 1, &len);
|
|
|
|
int id = GetPEL();
|
|
RegEx *x = PEL[id];
|
|
|
|
if (x->Compile(regex, flags) == 0)
|
|
{
|
|
const char *err = x->mError;
|
|
*MF_GetAmxAddr(amx, params[2]) = x->mErrorOffset;
|
|
MF_SetAmxString(amx, params[3], err?err:"unknown", params[4]);
|
|
return -1;
|
|
}
|
|
|
|
return id+1;
|
|
}
|
|
|
|
// native Regex:regex_compile_ex(const pattern[], flags = 0, error[] = "", maxLen = 0, &errcode = 0);
|
|
static cell AMX_NATIVE_CALL regex_compile_ex(AMX *amx, cell *params)
|
|
{
|
|
int len;
|
|
const char *regex = MF_GetAmxString(amx, params[1], 0, &len);
|
|
|
|
int id = GetPEL();
|
|
RegEx *x = PEL[id];
|
|
|
|
if (x->Compile(regex, params[2]) == 0)
|
|
{
|
|
const char *err = x->mError;
|
|
*MF_GetAmxAddr(amx, params[5]) = x->mErrorOffset;
|
|
MF_SetAmxString(amx, params[3], err ? err : "unknown", params[4]);
|
|
return -1;
|
|
}
|
|
|
|
return id + 1;
|
|
}
|
|
|
|
cell match(AMX *amx, cell *params, bool all)
|
|
{
|
|
int len;
|
|
const char *str = MF_GetAmxString(amx, params[1], 0, &len);
|
|
const char *regex = MF_GetAmxString(amx, params[2], 1, &len);
|
|
|
|
int id = GetPEL();
|
|
RegEx *x = PEL[id];
|
|
|
|
char *flags = NULL;
|
|
cell *errorCode;
|
|
int result = 0;
|
|
|
|
if (!all)
|
|
{
|
|
if (*params / sizeof(cell) >= 6) // compiled with 1.8's extra parameter
|
|
{
|
|
flags = MF_GetAmxString(amx, params[6], 2, &len);
|
|
}
|
|
|
|
result = x->Compile(regex, flags);
|
|
errorCode = MF_GetAmxAddr(amx, params[3]);
|
|
}
|
|
else
|
|
{
|
|
result = x->Compile(regex, params[3]);
|
|
errorCode = MF_GetAmxAddr(amx, params[6]);
|
|
}
|
|
|
|
if (!result)
|
|
{
|
|
const char *err = x->mError;
|
|
*errorCode = x->mErrorOffset;
|
|
MF_SetAmxString(amx, params[4], err ? err : "unknown", params[5]);
|
|
return -1;
|
|
}
|
|
|
|
int e;
|
|
|
|
if (all)
|
|
e = x->MatchAll(str);
|
|
else
|
|
e = x->Match(str);
|
|
|
|
if (e == -1)
|
|
{
|
|
/* there was a match error. destroy this and move on. */
|
|
*errorCode = x->mErrorOffset;
|
|
x->Clear();
|
|
return -2;
|
|
}
|
|
else if (e == 0)
|
|
{
|
|
*errorCode = 0;
|
|
x->Clear();
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*errorCode = x->Count();
|
|
if (all)
|
|
return x->Count();
|
|
}
|
|
|
|
return id + 1;
|
|
}
|
|
|
|
// native Regex:regex_match(const string[], const pattern[], &ret, error[], maxLen, const flags[] = "");
|
|
static cell AMX_NATIVE_CALL regex_match(AMX *amx, cell *params)
|
|
{
|
|
return match(amx, params, false);
|
|
}
|
|
|
|
// native Regex:regex_match_all(const string[], const pattern[], flags = 0, error[] = "", maxLen = 0, &errcode = 0);
|
|
static cell AMX_NATIVE_CALL regex_match_all(AMX *amx, cell *params)
|
|
{
|
|
return match(amx, params, true);
|
|
}
|
|
|
|
cell match_c(AMX *amx, cell *params, bool all)
|
|
{
|
|
int id = params[2] - 1;
|
|
|
|
if (id >= (int)PEL.length() || id < 0 || PEL[id]->isFree())
|
|
{
|
|
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid regex handle %d", id);
|
|
return 0;
|
|
}
|
|
|
|
int len;
|
|
const char *str = MF_GetAmxString(amx, params[1], 0, &len);
|
|
cell *errorCode = MF_GetAmxAddr(amx, params[3]);
|
|
|
|
RegEx *x = PEL[id];
|
|
|
|
int e;
|
|
if (all)
|
|
e = x->MatchAll(str);
|
|
else
|
|
e = x->Match(str);
|
|
|
|
if (e == -1)
|
|
{
|
|
/* there was a match error. move on. */
|
|
*errorCode = x->mErrorOffset;
|
|
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
return -2;
|
|
}
|
|
else if (e == 0)
|
|
{
|
|
*errorCode = 0;
|
|
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*errorCode = x->Count();
|
|
return x->Count();
|
|
}
|
|
}
|
|
|
|
// native regex_match_c(const string[], Regex:id, &ret);
|
|
static cell AMX_NATIVE_CALL regex_match_c(AMX *amx, cell *params)
|
|
{
|
|
return match_c(amx, params, false);
|
|
}
|
|
|
|
// native regex_match_all_c(const string[], Regex:id, &ret);
|
|
static cell AMX_NATIVE_CALL regex_match_all_c(AMX *amx, cell *params)
|
|
{
|
|
return match_c(amx, params, true);
|
|
}
|
|
|
|
// native regex_substr(Regex:id, str_id, buffer[], maxLen);
|
|
static cell AMX_NATIVE_CALL regex_substr(AMX *amx, cell *params)
|
|
{
|
|
int id = params[1]-1;
|
|
if (id >= (int)PEL.length() || id < 0 || PEL[id]->isFree())
|
|
{
|
|
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid regex handle %d", id);
|
|
return 0;
|
|
}
|
|
|
|
RegEx *x = PEL[id];
|
|
static char buffer[16384]; // Same as AMXX buffer.
|
|
|
|
size_t length;
|
|
size_t maxLength = ke::Min<size_t>(params[4], sizeof(buffer) - 1);
|
|
|
|
const char *ret = x->GetSubstring(params[2], buffer, maxLength, &length);
|
|
|
|
if (ret == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (length >= maxLength && ret[length - 1] & 1 << 7)
|
|
{
|
|
maxLength -= UTIL_CheckValidChar((char *)ret + length - 1);
|
|
}
|
|
|
|
MF_SetAmxString(amx, params[3], ret, maxLength);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static cell AMX_NATIVE_CALL regex_free(AMX *amx, cell *params)
|
|
{
|
|
cell *c = MF_GetAmxAddr(amx, params[1]);
|
|
int id = *c;
|
|
*c = 0;
|
|
id -= 1;
|
|
if (id >= (int)PEL.length() || id < 0 || PEL[id]->isFree())
|
|
{
|
|
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid regex handle %d", id);
|
|
return 0;
|
|
}
|
|
|
|
RegEx *x = PEL[id];
|
|
x->Clear();
|
|
|
|
return 1;
|
|
}
|
|
|
|
//native regex_replace(Regex:pattern, string[], maxLen, const replace[], flags = REGEX_FORMAT_DEFAULT, &errcode = 0);
|
|
static cell AMX_NATIVE_CALL regex_replace(AMX *amx, cell *params)
|
|
{
|
|
int id = params[1] - 1;
|
|
if (id >= (int)PEL.length() || id < 0 || PEL[id]->isFree())
|
|
{
|
|
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid regex handle %d", id);
|
|
return 0;
|
|
}
|
|
|
|
int textLen, replaceLen;
|
|
char *text = MF_GetAmxString(amx, params[2], 0, &textLen);
|
|
const char *replace = MF_GetAmxString(amx, params[4], 1, &replaceLen);
|
|
|
|
cell *erroCode = MF_GetAmxAddr(amx, params[6]);
|
|
|
|
RegEx *x = PEL[id];
|
|
int e = x->Replace(text, params[3] + 1, replace, replaceLen, params[5]);
|
|
|
|
if (e == -1)
|
|
{
|
|
*erroCode = x->mErrorOffset;
|
|
x->ClearMatch();
|
|
return -2;
|
|
}
|
|
else if (e == 0)
|
|
{
|
|
*erroCode = 0;
|
|
x->ClearMatch();
|
|
return 0;
|
|
}
|
|
|
|
MF_SetAmxString(amx, params[2], text, params[3]);
|
|
|
|
return e;
|
|
}
|
|
|
|
AMX_NATIVE_INFO regex_Natives[] = {
|
|
{"regex_compile", regex_compile},
|
|
{"regex_compile_ex", regex_compile_ex},
|
|
{"regex_match", regex_match},
|
|
{"regex_match_c", regex_match_c},
|
|
{"regex_match_all", regex_match_all},
|
|
{"regex_match_all_c", regex_match_all_c},
|
|
{"regex_substr", regex_substr},
|
|
{"regex_replace", regex_replace},
|
|
{"regex_free", regex_free},
|
|
{NULL, NULL},
|
|
};
|
|
|
|
void OnAmxxAttach()
|
|
{
|
|
MF_AddNatives(regex_Natives);
|
|
}
|
|
|
|
void OnAmxxDetach()
|
|
{
|
|
for (int i = 0; i<(int)PEL.length(); i++)
|
|
{
|
|
if (PEL[i])
|
|
{
|
|
delete PEL[i];
|
|
PEL[i] = 0;
|
|
}
|
|
}
|
|
|
|
PEL.clear();
|
|
}
|