dvander@2726: /**
dvander@2726:  * vim: set ts=4 :
dvander@2726:  * =============================================================================
dvander@2726:  * SourceMod
dvander@2726:  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
dvander@2726:  * =============================================================================
dvander@2726:  *
dvander@2726:  * This program is free software; you can redistribute it and/or modify it under
dvander@2726:  * the terms of the GNU General Public License, version 3.0, as published by the
dvander@2726:  * Free Software Foundation.
dvander@2726:  * 
dvander@2726:  * This program is distributed in the hope that it will be useful, but WITHOUT
dvander@2726:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
dvander@2726:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
dvander@2726:  * details.
dvander@2726:  *
dvander@2726:  * You should have received a copy of the GNU General Public License along with
dvander@2726:  * this program.  If not, see <http://www.gnu.org/licenses/>.
dvander@2726:  *
dvander@2726:  * As a special exception, AlliedModders LLC gives you permission to link the
dvander@2726:  * code of this program (as well as its derivative works) to "Half-Life 2," the
dvander@2726:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
dvander@2726:  * by the Valve Corporation.  You must obey the GNU General Public License in
dvander@2726:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
dvander@2726:  * this exception to all derivative works.  AlliedModders LLC defines further
dvander@2726:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
dvander@2726:  * or <http://www.sourcemod.net/license.php>.
dvander@2726:  *
dvander@2726:  * Version: $Id$
dvander@2726:  */
dvander@2726: 
dvander@2726: #include "common_logic.h"
dvander@2726: #include <ITextParsers.h>
dvander@2726: #include <ISourceMod.h>
dvander@2726: 
dvander@2726: HandleType_t g_TypeSMC = 0;
dvander@2726: 
dvander@2726: class ParseInfo : public ITextListener_SMC
dvander@2726: {
dvander@2726: public:
dvander@2726: 	ParseInfo()
dvander@2726: 	{
dvander@2726: 		parse_start = NULL;
dvander@2726: 		parse_end = NULL;
dvander@2726: 		new_section = NULL;
dvander@2726: 		key_value = NULL;
dvander@2726: 		end_section = NULL;
dvander@2726: 		raw_line = NULL;
dvander@2726: 		handle = 0;
dvander@2726: 	}
dvander@2726: public:
dvander@2726: 	void ReadSMC_ParseStart()
dvander@2726: 	{
dvander@2726: 		if (parse_start)
dvander@2726: 		{
dvander@2726: 			cell_t result;
dvander@2726: 			parse_start->PushCell(handle);
dvander@2726: 			parse_start->Execute(&result);
dvander@2726: 		}
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	void ReadSMC_ParseEnd(bool halted, bool failed)
dvander@2726: 	{
dvander@2726: 		if (parse_end)
dvander@2726: 		{
dvander@2726: 			cell_t result;
dvander@2726: 			parse_end->PushCell(handle);
dvander@2726: 			parse_end->PushCell(halted ? 1 : 0);
dvander@2726: 			parse_end->PushCell(failed ? 1 : 0);
dvander@2726: 			parse_end->Execute(&result);
dvander@2726: 		}
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	SMCResult ReadSMC_NewSection(const SMCStates *states, const char *name)
dvander@2726: 	{
dvander@2726: 		cell_t result = SMCResult_Continue;
dvander@2726: 
dvander@2726: 		if (new_section)
dvander@2726: 		{
dvander@2726: 			new_section->PushCell(handle);
dvander@2726: 			new_section->PushString(name);
dvander@2726: 			new_section->PushCell(1);
dvander@2726: 			new_section->Execute(&result);
dvander@2726: 		}
dvander@2726: 
dvander@2726: 		return (SMCResult)result;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	SMCResult ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value)
dvander@2726: 	{
dvander@2726: 		cell_t result = SMCResult_Continue;
dvander@2726: 
dvander@2726: 		if (key_value)
dvander@2726: 		{
dvander@2726: 			key_value->PushCell(handle);
dvander@2726: 			key_value->PushString(key);
dvander@2726: 			key_value->PushString(value);
dvander@2726: 			key_value->PushCell(1);
dvander@2726: 			key_value->PushCell(1);
dvander@2726: 			key_value->Execute(&result);
dvander@2726: 		}
dvander@2726: 
dvander@2726: 		return (SMCResult)result;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	SMCResult ReadSMC_LeavingSection(const SMCStates *states)
dvander@2726: 	{
dvander@2726: 		cell_t result = SMCResult_Continue;
dvander@2726: 
dvander@2726: 		if (end_section)
dvander@2726: 		{
dvander@2726: 			end_section->PushCell(handle);
dvander@2726: 			end_section->Execute(&result);
dvander@2726: 		}
dvander@2726: 
dvander@2726: 		return (SMCResult)result;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	SMCResult ReadSMC_RawLine(const SMCStates *states, const char *line)
dvander@2726: 	{
dvander@2726: 		cell_t result = SMCResult_Continue;
dvander@2726: 
dvander@2726: 		if (raw_line)
dvander@2726: 		{
dvander@2726: 			raw_line->PushCell(handle);
dvander@2726: 			raw_line->PushString(line);
dvander@2726: 			raw_line->PushCell(states->line);
dvander@2726: 			raw_line->Execute(&result);
dvander@2726: 		}
dvander@2726: 
dvander@2726: 		return (SMCResult)result;
dvander@2726: 	}
dvander@2726: public:
dvander@2726: 	IPluginFunction *parse_start;
dvander@2726: 	IPluginFunction *parse_end;
dvander@2726: 	IPluginFunction *new_section;
dvander@2726: 	IPluginFunction *key_value;
dvander@2726: 	IPluginFunction *end_section;
dvander@2726: 	IPluginFunction *raw_line;
dvander@2726: 	Handle_t handle;
dvander@2726: };
dvander@2726: 
dvander@2726: class TextParseGlobals : 
dvander@2726: 	public SMGlobalClass,
dvander@2726: 	public IHandleTypeDispatch
dvander@2726: {
dvander@2726: public:
dvander@2726: 	void OnSourceModAllInitialized()
dvander@2726: 	{
dvander@2726: 		HandleAccess sec;
dvander@2726: 
dvander@2726: 		/* These cannot be cloned, because they are locked to a specific plugin.
dvander@2726: 		 * However, we let anyone read them because we don't care.
dvander@2726: 		 */
dvander@2726: 		handlesys->InitAccessDefaults(NULL, &sec);
dvander@2726: 		sec.access[HandleAccess_Clone] = HANDLE_RESTRICT_IDENTITY;
dvander@2726: 		sec.access[HandleAccess_Read] = 0;
dvander@2726: 
dvander@2726: 		g_TypeSMC = handlesys->CreateType("SMCParser", this, 0, NULL, &sec, g_pCoreIdent, NULL);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	void OnSourceModShutdown()
dvander@2726: 	{
dvander@2726: 		handlesys->RemoveType(g_TypeSMC, g_pCoreIdent);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	void OnHandleDestroy(HandleType_t type, void *object)
dvander@2726: 	{
dvander@2726: 		ParseInfo *parse = (ParseInfo *)object;
dvander@2726: 		delete parse;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	bool GetHandleApproxSize(HandleType_t type, void *object, unsigned int *pSize)
dvander@2726: 	{
dvander@2726: 		*pSize = sizeof(ParseInfo);
dvander@2726: 		return true;
dvander@2726: 	}
dvander@2726: };
dvander@2726: 
dvander@2726: TextParseGlobals g_TextParseGlobals;
dvander@2726: 
dvander@2726: static cell_t SMC_CreateParser(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	ParseInfo *pInfo = new ParseInfo();
dvander@2726: 
dvander@2726: 	Handle_t hndl = handlesys->CreateHandle(g_TypeSMC, pInfo, pContext->GetIdentity(), g_pCoreIdent, NULL);
dvander@2726: 
dvander@2726: 	/* Should never happen */
dvander@2726: 	if (!hndl)
dvander@2726: 	{
dvander@2726: 		delete pInfo;
dvander@2726: 		return 0;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	pInfo->handle = hndl;
dvander@2726: 
dvander@2726: 	return hndl;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_SetParseStart(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	Handle_t hndl = (Handle_t)params[1];
dvander@2726: 	HandleError err;
dvander@2726: 	ParseInfo *parse;
kyle@3955: 	HandleSecurity sec(pContext->GetIdentity(), g_pCoreIdent);
dvander@2726: 
kyle@3955: 	if ((err=handlesys->ReadHandle(hndl, g_TypeSMC, &sec, (void **)&parse))
dvander@2726: 		!= HandleError_None)
dvander@2726: 	{
dvander@2726: 		return pContext->ThrowNativeError("Invalid SMC Parse Handle %x (error %d)", hndl, err);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	parse->parse_start = pContext->GetFunctionById((funcid_t)params[2]);
dvander@2726: 
dvander@2726: 	return 1;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_SetParseEnd(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	Handle_t hndl = (Handle_t)params[1];
dvander@2726: 	HandleError err;
dvander@2726: 	ParseInfo *parse;
kyle@3955: 	HandleSecurity sec(pContext->GetIdentity(), g_pCoreIdent);
dvander@2726: 
kyle@3955: 	if ((err=handlesys->ReadHandle(hndl, g_TypeSMC, &sec, (void **)&parse))
dvander@2726: 		!= HandleError_None)
dvander@2726: 	{
dvander@2726: 		return pContext->ThrowNativeError("Invalid SMC Parse Handle %x (error %d)", hndl, err);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	parse->parse_end = pContext->GetFunctionById((funcid_t)params[2]);
dvander@2726: 
dvander@2726: 	return 1;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_SetReaders(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	Handle_t hndl = (Handle_t)params[1];
dvander@2726: 	HandleError err;
dvander@2726: 	ParseInfo *parse;
kyle@3955: 	HandleSecurity sec(pContext->GetIdentity(), g_pCoreIdent);
dvander@2726: 
kyle@3955: 	if ((err=handlesys->ReadHandle(hndl, g_TypeSMC, &sec, (void **)&parse))
dvander@2726: 		!= HandleError_None)
dvander@2726: 	{
dvander@2726: 		return pContext->ThrowNativeError("Invalid SMC Parse Handle %x (error %d)", hndl, err);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	parse->new_section = pContext->GetFunctionById((funcid_t)params[2]);
dvander@2726: 	parse->key_value = pContext->GetFunctionById((funcid_t)params[3]);
dvander@2726: 	parse->end_section = pContext->GetFunctionById((funcid_t)params[4]);
dvander@2726: 
dvander@2726: 	return 1;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_SetRawLine(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	Handle_t hndl = (Handle_t)params[1];
dvander@2726: 	HandleError err;
dvander@2726: 	ParseInfo *parse;
kyle@3955: 	HandleSecurity sec(pContext->GetIdentity(), g_pCoreIdent);
dvander@2726: 
kyle@3955: 	if ((err=handlesys->ReadHandle(hndl, g_TypeSMC, &sec, (void **)&parse))
dvander@2726: 		!= HandleError_None)
dvander@2726: 	{
dvander@2726: 		return pContext->ThrowNativeError("Invalid SMC Parse Handle %x (error %d)", hndl, err);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	parse->raw_line = pContext->GetFunctionById((funcid_t)params[2]);
dvander@2726: 
dvander@2726: 	return 1;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_ParseFile(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	Handle_t hndl = (Handle_t)params[1];
dvander@2726: 	HandleError err;
dvander@2726: 	ParseInfo *parse;
kyle@3955: 	HandleSecurity sec(pContext->GetIdentity(), g_pCoreIdent);
dvander@2726: 
kyle@3955: 	if ((err=handlesys->ReadHandle(hndl, g_TypeSMC, &sec, (void **)&parse))
dvander@2726: 		!= HandleError_None)
dvander@2726: 	{
dvander@2726: 		return pContext->ThrowNativeError("Invalid SMC Parse Handle %x (error %d)", hndl, err);
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	char *file;
dvander@2726: 	pContext->LocalToString(params[2], &file);
dvander@2726: 
dvander@2726: 	char path[PLATFORM_MAX_PATH];
dvander@2726: 	g_pSM->BuildPath(Path_Game, path, sizeof(path), "%s", file);
dvander@2726: 
dvander@2726: 	SMCStates states;
dvander@2726: 	SMCError p_err = textparsers->ParseFile_SMC(path, parse, &states);
dvander@2726: 
dvander@2726: 	cell_t *c_line, *c_col;
dvander@2726: 	pContext->LocalToPhysAddr(params[3], &c_line);
dvander@2726: 	pContext->LocalToPhysAddr(params[4], &c_col);
dvander@2726: 
dvander@2726: 	*c_line = states.line;
dvander@2726: 	*c_col = states.col;
dvander@2726: 
dvander@2726: 	return (cell_t)p_err;
dvander@2726: }
dvander@2726: 
dvander@2726: static cell_t SMC_GetErrorString(IPluginContext *pContext, const cell_t *params)
dvander@2726: {
dvander@2726: 	const char *str = textparsers->GetSMCErrorString((SMCError)params[1]);
dvander@2726: 
dvander@2726: 	if (!str)
dvander@2726: 	{
dvander@2726: 		return 0;
dvander@2726: 	}
dvander@2726: 
dvander@2726: 	pContext->StringToLocal(params[2], params[3], str);
dvander@2726: 
dvander@2726: 	return 1;
dvander@2726: }
dvander@2726: 
dvander@2726: REGISTER_NATIVES(textNatives)
dvander@2726: {
dvander@2726: 	{"SMC_CreateParser",			SMC_CreateParser},
dvander@2726: 	{"SMC_ParseFile",				SMC_ParseFile},
dvander@2726: 	{"SMC_GetErrorString",			SMC_GetErrorString},
dvander@2726: 	{"SMC_SetParseStart",			SMC_SetParseStart},
dvander@2726: 	{"SMC_SetParseEnd",				SMC_SetParseEnd},
dvander@2726: 	{"SMC_SetReaders",				SMC_SetReaders},
dvander@2726: 	{"SMC_SetRawLine",				SMC_SetRawLine},
dvander@2726: 	{NULL,							NULL},
dvander@2726: };