359 lines
8.9 KiB
C++
359 lines
8.9 KiB
C++
/**
|
|
* vim: set ts=4 :
|
|
* =============================================================================
|
|
* SourceMod Regular Expressions Extension
|
|
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
|
|
* =============================================================================
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it under
|
|
* the terms of the GNU General Public License, version 3.0, as published by the
|
|
* Free Software Foundation.
|
|
*
|
|
* 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/>.
|
|
*
|
|
* As a special exception, AlliedModders LLC gives you permission to link the
|
|
* code of this program (as well as its derivative works) to "Half-Life 2," the
|
|
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
|
|
* by the Valve Corporation. You must obey the GNU General Public License in
|
|
* all respects for all other code used. Additionally, AlliedModders LLC grants
|
|
* this exception to all derivative works. AlliedModders LLC defines further
|
|
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
|
|
* or <http://www.sourcemod.net/license.php>.
|
|
*
|
|
* Version: $Id$
|
|
*/
|
|
|
|
#include <sourcemod_version.h>
|
|
#include "extension.h"
|
|
#include <sh_string.h>
|
|
#include "pcre.h"
|
|
#include "CRegEx.h"
|
|
using namespace SourceHook;
|
|
|
|
/**
|
|
* @file extension.cpp
|
|
* @brief Implement Regex extension code here.
|
|
*/
|
|
|
|
RegexExtension g_RegexExtension; /**< Global singleton for extension's main interface */
|
|
|
|
SMEXT_LINK(&g_RegexExtension);
|
|
|
|
RegexHandler g_RegexHandler;
|
|
HandleType_t g_RegexHandle=0;
|
|
|
|
|
|
|
|
bool RegexExtension::SDK_OnLoad(char *error, size_t err_max, bool late)
|
|
{
|
|
g_pShareSys->AddNatives(myself,regex_natives);
|
|
g_RegexHandle = g_pHandleSys->CreateType("Regex", &g_RegexHandler, 0, NULL, NULL, myself->GetIdentity(), NULL);
|
|
return true;
|
|
}
|
|
|
|
void RegexExtension::SDK_OnUnload()
|
|
{
|
|
g_pHandleSys->RemoveType(g_RegexHandle, myself->GetIdentity());
|
|
|
|
}
|
|
|
|
const char *RegexExtension::GetExtensionVerString()
|
|
{
|
|
return SOURCEMOD_VERSION;
|
|
}
|
|
|
|
const char *RegexExtension::GetExtensionDateString()
|
|
{
|
|
return SOURCEMOD_BUILD_TIME;
|
|
}
|
|
|
|
static cell_t CompileRegex(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
char *regex;
|
|
pCtx->LocalToString(params[1], ®ex);
|
|
|
|
RegEx *x = new RegEx();
|
|
|
|
if (x->Compile(regex, params[2]) == 0)
|
|
{
|
|
cell_t *eOff;
|
|
pCtx->LocalToPhysAddr(params[5], &eOff);
|
|
const char *err = x->mError;
|
|
*eOff = x->mErrorOffset;
|
|
pCtx->StringToLocal(params[3], params[4], err ? err:"unknown");
|
|
delete x;
|
|
return 0;
|
|
}
|
|
|
|
HandleError error = HandleError_None;
|
|
Handle_t regexHandle = g_pHandleSys->CreateHandle(g_RegexHandle, (void*)x, pCtx->GetIdentity(), myself->GetIdentity(), &error);
|
|
if (!regexHandle || error != HandleError_None)
|
|
{
|
|
delete x;
|
|
pCtx->ReportError("Allocation of regex handle failed, error code #%d", error);
|
|
return 0;
|
|
}
|
|
|
|
return regexHandle;
|
|
}
|
|
|
|
|
|
static cell_t MatchRegex(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl = static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner = NULL;
|
|
sec.pIdentity = myself->GetIdentity();
|
|
|
|
unsigned int offset = 0;
|
|
|
|
if (params[0] >= 4)
|
|
{
|
|
offset = (unsigned int)params[4];
|
|
}
|
|
|
|
RegEx *x;
|
|
|
|
if ((err=g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
pCtx->ThrowNativeError("Regex data not found\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *str;
|
|
pCtx->LocalToString(params[2], &str);
|
|
|
|
if(offset >= strlen(str))
|
|
return pCtx->ThrowNativeError("Invalid string index\n");
|
|
|
|
int e = x->Match(str, offset);
|
|
|
|
if (e == -1)
|
|
{
|
|
/* there was a match error. move on. */
|
|
cell_t *res;
|
|
pCtx->LocalToPhysAddr(params[3], &res);
|
|
*res = x->mErrorOffset;
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
|
|
return -1;
|
|
}
|
|
else if (e == 0)
|
|
{
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return x->mMatches[0].mSubStringCount;
|
|
}
|
|
}
|
|
|
|
static cell_t MatchRegexAll(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl = static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner = NULL;
|
|
sec.pIdentity = myself->GetIdentity();
|
|
|
|
RegEx *x;
|
|
|
|
if ((err = g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
pCtx->ThrowNativeError("Regex data not found\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *str;
|
|
pCtx->LocalToString(params[2], &str);
|
|
|
|
int e = x->MatchAll(str);
|
|
|
|
if (e == -1)
|
|
{
|
|
/* there was a match error. move on. */
|
|
cell_t *res;
|
|
pCtx->LocalToPhysAddr(params[3], &res);
|
|
*res = x->mErrorOffset;
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
|
|
return -1;
|
|
}
|
|
else if (e == 0)
|
|
{
|
|
/* only clear the match results, since the regex object
|
|
may still be referenced later */
|
|
x->ClearMatch();
|
|
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return x->mMatchCount;
|
|
}
|
|
}
|
|
|
|
static cell_t GetRegexSubString(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl=static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner=NULL;
|
|
sec.pIdentity=myself->GetIdentity();
|
|
|
|
int match = 0;
|
|
|
|
RegEx *x;
|
|
|
|
if ((err=g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
pCtx->ThrowNativeError("Regex data not found\n");
|
|
return 0;
|
|
}
|
|
|
|
if (params[0] >= 5)
|
|
{
|
|
match = params[5];
|
|
}
|
|
|
|
if(match >= x->mMatchCount || match < 0)
|
|
return pCtx->ThrowNativeError("Invalid match index passed.\n");
|
|
|
|
char *buffer;
|
|
pCtx->LocalToString(params[3], &buffer);
|
|
|
|
return x->GetSubstring(params[2], buffer, params[4], match);
|
|
}
|
|
|
|
static cell_t GetRegexMatchCount(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl = static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner = NULL;
|
|
sec.pIdentity = myself->GetIdentity();
|
|
|
|
RegEx *x;
|
|
|
|
if ((err = g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
return pCtx->ThrowNativeError("Regex data not found\n");
|
|
}
|
|
|
|
return x->mMatchCount;
|
|
}
|
|
|
|
static cell_t GetRegexCaptureCount(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl = static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner = NULL;
|
|
sec.pIdentity = myself->GetIdentity();
|
|
|
|
RegEx *x;
|
|
|
|
if ((err = g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
return pCtx->ThrowNativeError("Regex data not found\n");
|
|
}
|
|
|
|
if (params[2] >= x->mMatchCount || params[2] < 0)
|
|
return pCtx->ThrowNativeError("Invalid match index passed.\n");
|
|
|
|
return x->mMatches[params[2]].mSubStringCount;
|
|
}
|
|
|
|
static cell_t GetRegexOffset(IPluginContext *pCtx, const cell_t *params)
|
|
{
|
|
Handle_t hndl = static_cast<Handle_t>(params[1]);
|
|
HandleError err;
|
|
HandleSecurity sec;
|
|
sec.pOwner = NULL;
|
|
sec.pIdentity = myself->GetIdentity();
|
|
|
|
RegEx *x;
|
|
|
|
if ((err = g_pHandleSys->ReadHandle(hndl, g_RegexHandle, &sec, (void **)&x)) != HandleError_None)
|
|
{
|
|
return pCtx->ThrowNativeError("Invalid regex handle %x (error %d)", hndl, err);
|
|
}
|
|
|
|
if (!x)
|
|
{
|
|
return pCtx->ThrowNativeError("Regex data not found\n");
|
|
}
|
|
|
|
if (params[2] >= x->mMatchCount || params[2] < 0)
|
|
return pCtx->ThrowNativeError("Invalid match index passed.\n");
|
|
|
|
return x->mMatches[params[2]].mVector[1];
|
|
}
|
|
|
|
void RegexHandler::OnHandleDestroy(HandleType_t type, void *object)
|
|
{
|
|
RegEx *x = (RegEx *)object;
|
|
|
|
x->Clear();
|
|
delete x;
|
|
}
|
|
|
|
const sp_nativeinfo_t regex_natives[] =
|
|
{
|
|
{"GetRegexSubString", GetRegexSubString},
|
|
{"MatchRegex", MatchRegex},
|
|
{"CompileRegex", CompileRegex},
|
|
|
|
// Methodmap versions/
|
|
{"Regex.GetSubString", GetRegexSubString},
|
|
{"Regex.Match", MatchRegex},
|
|
{"Regex.Regex", CompileRegex},
|
|
{"Regex.MatchAll", MatchRegexAll},
|
|
{"Regex.MatchCount", GetRegexMatchCount},
|
|
{"Regex.CaptureCount", GetRegexCaptureCount},
|
|
{"Regex.MatchOffset", GetRegexOffset},
|
|
{NULL, NULL},
|
|
};
|