mirror of
https://github.com/gnustep/libs-gsweb.git
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499 lines
22 KiB
Mathematica
499 lines
22 KiB
Mathematica
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/* GSWTemplateParserANTLR.m - GSWeb: Class GSWTemplateParserANTLR
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Copyright (C) 1999 Free Software Foundation, Inc.
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Written by: Manuel Guesdon <mguesdon@sbuilders.com>
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Date: Mar 1999
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This file is part of the GNUstep Web Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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static char rcsId[] = "$Id$";
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#include <gsweb/GSWeb.framework/GSWeb.h>
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//====================================================================
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@implementation GSWTemplateParserANTLR
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-(void)dealloc
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{
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DESTROY(_tagsNames);
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DESTROY(_tagsAttrs);
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[super dealloc];
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};
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-(NSArray*)templateElements
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{
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NSArray* elements=nil;
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id<NSObject,ANTLRAST> htmlAST=nil;
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NSAutoreleasePool* arpParse=nil;
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ANTLRTextInputStreamString* htmlStream=nil;
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GSWHTMLLexer* htmlLexer=nil;
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ANTLRTokenBuffer* htmlTokenBuffer=nil;
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GSWHTMLParser* htmlParser=nil;
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LOGObjectFnStart();
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NSDebugMLLog(@"low",@"template named:%@ frameworkName:%@ pageDefString=%@",
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_templateName,
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_frameworkName,
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_definitionsString);
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//TODO remove
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/*
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[ANTLRCharBuffer setTraceFlag_LA:YES];
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[ANTLRCharScanner setTraceFlag_LA:YES];
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[ANTLRLLkParser setTraceFlag_LA:YES];
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[ANTLRTokenBuffer setTraceFlag_LA:YES];
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*/
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htmlStream=[[ANTLRTextInputStreamString newWithString:_string]
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autorelease];
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htmlLexer=[[[GSWHTMLLexer alloc]initWithTextStream:htmlStream]
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autorelease];
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htmlTokenBuffer=[ANTLRTokenBuffer tokenBufferWithTokenizer:htmlLexer];
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htmlParser=[[[GSWHTMLParser alloc] initWithTokenBuffer:htmlTokenBuffer]
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autorelease];
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NSDebugMLLog(@"low",@"template named:%@ HTMLString=%@",
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_templateName,
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_string);
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arpParse=[NSAutoreleasePool new];
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NS_DURING
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{
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[htmlParser document];
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if ([htmlParser isError])
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{
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LOGError(@"Parser Errors : %@",[htmlParser errors]);
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ExceptionRaise(@"GSWTemplateParser",
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@"GSWTemlateParser: Errors in HTML parsing template named %@: %@\nAST:\n%@",
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_templateName,
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[htmlParser errors],
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[htmlParser AST]);
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};
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htmlAST=[htmlParser AST];
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NSDebugMLLog0(@"low",@"HTML Parse OK!");
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}
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NS_HANDLER
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{
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LOGError(@"template named:%@ HTML Parse failed!",_templateName);
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localException=ExceptionByAddingUserInfoObjectFrameInfo(localException,@"In [htmlParser document]... template named:%@ HTML Parse failed!",_templateName);
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[localException retain];
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DESTROY(arpParse);
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[localException autorelease];
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[localException raise];
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}
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NS_ENDHANDLER;
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NSDebugMLLog0(@"low",@"arpParse infos:\n");
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#ifndef NDEBUG
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if ([NSThread currentThread])
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{
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NSDebugMLLog(@"low",@"thread current_pool=%@",
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[NSThread currentThread]->_autorelease_vars.current_pool);
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NSDebugMLLog(@"low",@"thread current_pool _parentAutoreleasePool=%@",
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[[NSThread currentThread]->_autorelease_vars.current_pool _parentAutoreleasePool]);
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};
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#endif
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NSDebugMLLog0(@"low",@"DESTROY(arpParse)\n");
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[htmlAST retain];
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DESTROY(arpParse);
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arpParse=[NSAutoreleasePool new];
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[htmlAST autorelease];
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NSDebugMLLog0(@"low",@"DESTROYED(arpParse)\n");
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if (htmlAST)
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{
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_tagsNames=[[NSMutableDictionary dictionary] retain];
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_tagsAttrs=[[NSMutableDictionary dictionary] retain];
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NS_DURING
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{
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elements=[self createElementsStartingWithAST:&htmlAST
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stopOnTagNamed:nil];
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NSDebugMLLog(@"low",@"template named:%@ _template=%@",
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_templateName,
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elements);
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}
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NS_HANDLER
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{
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LOGSeriousError(@"template named:%@ createElements failed!",
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_templateName);
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localException=ExceptionByAddingUserInfoObjectFrameInfo0(localException,
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@"In createElementsStartingWithAST...");
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[localException raise];
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}
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NS_ENDHANDLER;
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};
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NSDebugMLLog0(@"low",@"ARP infos:\n");
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#ifndef NDEBUG
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if ([NSThread currentThread])
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{
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NSDebugMLLog(@"low",@"thread current_pool=%@",
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[NSThread currentThread]->_autorelease_vars.current_pool);
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NSDebugMLLog(@"low",@"thread current_pool _parentAutoreleasePool=%@",
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[[NSThread currentThread]->_autorelease_vars.current_pool _parentAutoreleasePool]);
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};
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#endif
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[elements retain];
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NSDebugMLLog0(@"low",@"DESTROY(arp)\n");
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DESTROY(arpParse);
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NSDebugMLLog0(@"low",@"DESTROYED(arp)\n");
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[elements autorelease];
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NSDebugMLLog0(@"low",@"Display Template\n");
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NSDebugMLLog(@"low",@"template named:%@ elements=%@",
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_templateName,
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elements);
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LOGClassFnStop();
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return elements;
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};
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//--------------------------------------------------------------------
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-(BOOL)parseTag:(ANTLRDefAST)_AST
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{
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BOOL htmlAttrParseOK=YES;
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NSString* tagName=[_tagsNames objectForKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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LOGClassFnStart();
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if (!tagName
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&& ([_AST tokenType]==GSWHTMLTokenType_OPENTAG
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|| [_AST tokenType]==GSWHTMLTokenType_CLOSETAG))
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{
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NSAutoreleasePool* arpParse=nil;
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ANTLRTextInputStreamString* _tagStream=[[[ANTLRTextInputStreamString alloc]
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initWithString:[_AST text]]
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autorelease];
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GSWHTMLAttrLexer* htmlAttrLexer=[[[GSWHTMLAttrLexer alloc]
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initWithTextStream:_tagStream]
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autorelease];
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ANTLRTokenBuffer* htmlAttrTokenBuffer=[ANTLRTokenBuffer tokenBufferWithTokenizer:htmlAttrLexer];
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GSWHTMLAttrParser* _tagParser=[[[GSWHTMLAttrParser alloc] initWithTokenBuffer:htmlAttrTokenBuffer]
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autorelease];
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NSString* tagName=nil;
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NSDictionary* tagAttrs=nil;
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NSDebugMLLog(@"low",@"PARSE:[%@]",[_AST text]);
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NSDebugMLLog(@"low",@"stream:[%@]",_tagStream);
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htmlAttrParseOK=NO;
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arpParse=[NSAutoreleasePool new];
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NS_DURING
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{
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[_tagParser tag];
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if ([_tagParser isError])
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{
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LOGError(@"Parser Errors : %@",[_tagParser errors]);
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ExceptionRaise(@"GSWTemplateParser",
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@"GSWTemlateParser: Errors in HTML Tag parsing: %@",
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[_tagParser errors]);
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};
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tagName=[_tagParser tagName];
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tagAttrs=[_tagParser attributes];
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NSDebugMLLog(@"low",@"tagName=%@ tagAttrs=%@",
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tagName,
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tagAttrs);
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htmlAttrParseOK=YES;
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}
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NS_HANDLER
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{
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htmlAttrParseOK=NO;
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LOGError(@"PARSE PB:[%@]",[_AST text]);//TODO
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localException=ExceptionByAddingUserInfoObjectFrameInfo0(localException,
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@"In [_tagParser tag]...");
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[localException raise];
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}
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NS_ENDHANDLER;
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NSDebugMLLog0(@"low",@"arpParse infos:\n");
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#ifndef NDEBUG
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if ([NSThread currentThread])
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{
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NSDebugMLLog(@"low",@"thread current_pool=%@",
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[NSThread currentThread]->_autorelease_vars.current_pool);
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NSDebugMLLog(@"low",@"thread current_pool _parentAutoreleasePool=%@",
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[[NSThread currentThread]->_autorelease_vars.current_pool _parentAutoreleasePool]);
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};
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#endif
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NSDebugMLLog0(@"low",@"DESTROY(arpParse)\n");
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DESTROY(arpParse);
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NSDebugMLLog0(@"low",@"DESTROYED(arpParse)\n");
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NSDebugMLLog(@"low",@"END PARSE:[%@]",[_AST text]);
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if (htmlAttrParseOK && tagName)
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{
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NSDebugMLLog(@"low",@"tagName:[%@]",tagName);
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if ([tagName hasPrefix:@"\""] && [tagName hasSuffix:@"\""])
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tagName=[[tagName stringWithoutPrefix:@"\""]stringWithoutSuffix:@"\""];
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NSDebugMLLog(@"low",@"Add tagName:[%@]",
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tagName);
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[_tagsNames setObject:tagName
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forKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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NSDebugMLLog(@"low",@"Verify tagName=%@",
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[_tagsNames objectForKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]); //TODO bad hack
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NSDebugMLLog(@"low",@"Add tagsAttrs:[%@]",
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tagAttrs);
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if (tagAttrs)
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{
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[_tagsAttrs setObject:tagAttrs
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forKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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NSDebugMLLog(@"low",@"Verify tagAttrs=%@",
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[_tagsAttrs objectForKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]); //TODO bad hack
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};
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};
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};
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LOGClassFnStop();
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return htmlAttrParseOK;
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};
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//--------------------------------------------------------------------
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-(NSString*)getTagNameFor:(ANTLRDefAST)_AST
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{
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NSString* tagName=[_tagsNames objectForKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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LOGClassFnStart();
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NSDebugMLLog(@"low",@"[%@]",[_AST text]);
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if (!tagName)
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{
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BOOL htmlAttrParseOK=[self parseTag:_AST];
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if (htmlAttrParseOK)
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tagName=[_tagsNames objectForKey:[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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};
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NSDebugMLLog(@"low",@"tagName:[%@]",tagName);
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LOGClassFnStop();
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return tagName;
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};
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//--------------------------------------------------------------------
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-(NSDictionary*)getTagAttrsFor:(ANTLRDefAST)_AST
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{
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NSDictionary* tagAttrs=[_tagsAttrs objectForKey:
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[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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LOGClassFnStart();
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NSDebugMLLog(@"low",@"[%@]",[_AST text]);
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if (!tagAttrs)
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{
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BOOL htmlAttrParseOK=[self parseTag:_AST];
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if (htmlAttrParseOK)
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tagAttrs=[_tagsAttrs objectForKey:
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[NSNumber numberWithUnsignedLong:(unsigned long)_AST]]; //TODO bad hack
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};
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NSDebugMLLog(@"low",@"tagAttrs:[%@]",tagAttrs);
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LOGClassFnStop();
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return tagAttrs;
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};
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//--------------------------------------------------------------------
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-(NSArray*)createElementsStartingWithAST:(ANTLRDefAST*)_AST
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stopOnTagNamed:(NSString*)_stopTagName
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{
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NSMutableArray* _elements=[NSMutableArray array];
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ANTLRDefAST _currentAST=*_AST;
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BOOL end=NO;
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BOOL inHTMLBareString=NO;
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NSMutableString* htmlBareString=nil;
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LOGClassFnStart();
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NSDebugMLLog(@"low",@"_stopTagName:[%@]",_stopTagName);
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while(_currentAST && !end)
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{
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GSWElement* element=nil;
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NSString* tagName=nil;
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NSDictionary* tagAttrs=nil;
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BOOL stopBareString=NO;
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NSDebugMLLog(@"low",@"[_currentAST: text=[%@] Type=%d",
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[_currentAST text],
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[_currentAST tokenType]);
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NSDebugMLLog(@"low",@"end=%s inHTMLBareString=%s stopBareString=%s",
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end ? "YES" : "NO",
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inHTMLBareString ? "YES" : "NO",
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stopBareString ? "YES" : "NO");
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if ([_currentAST tokenType]==GSWHTMLTokenType_OPENTAG
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|| [_currentAST tokenType]==GSWHTMLTokenType_CLOSETAG)
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{
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tagName=[self getTagNameFor:_currentAST];
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NSDebugMLLog(@"low",@"Result tagName:[%@]",tagName);
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if (!tagName)
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{
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LOGError0(@"");//TODO
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}
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else
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{
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NSDebugMLLog(@"low",@"[_currentAST tokenType]=%d",(int)[_currentAST tokenType]);
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if ([_currentAST tokenType]==GSWHTMLTokenType_OPENTAG)
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{
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NSDebugMLLog0(@"low",@"Found Open Tag");
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tagAttrs=[self getTagAttrsFor:_currentAST];
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NSDebugMLLog(@"low",@"tagAttrs=%@",tagAttrs);
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if ([tagName caseInsensitiveCompare:@"gsweb"]==NSOrderedSame
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|| [tagName caseInsensitiveCompare:@"webobject"]==NSOrderedSame)
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{
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NSDebugMLLog0(@"low",@"Found GSWeb Tag");
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NSDebugMLLog(@"low",@"tagAttrs=%@",
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tagAttrs);
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if (inHTMLBareString)
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{
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NSDebugMLLog0(@"low",@"==>Stop BareString");
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stopBareString=YES;
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}
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else
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{
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ANTLRDefAST nextAST=[_currentAST nextSibling];
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NSString* name=[tagAttrs objectForKey:@"name"];
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NSDebugMLLog0(@"low",@"Process GSWeb Tag");
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NSDebugMLLog(@"low",@"GSWeb Tag: name:[%@]",
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name);
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if (!name)
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{
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LOGError(@"No name for Element:%@",
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[_currentAST text]);//TODO
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|
ExceptionRaise(@"GSWTemplateParser",
|
||
|
|
@"GSWTemlateParser: no name for GNUstepWeb tag in template named %@",
|
||
|
|
_templateName);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
GSWPageDefElement* pageDefElement=[_definitions objectForKey:name];
|
||
|
|
NSDebugMLLog(@"low",@"pageDefElement:[%@]",
|
||
|
|
pageDefElement);
|
||
|
|
NSDebugMLLog(@"low",@"GSWeb Tag pageDefElement:[%@]",
|
||
|
|
pageDefElement);
|
||
|
|
if (pageDefElement)
|
||
|
|
{
|
||
|
|
NSDictionary* _associations=[pageDefElement associations];
|
||
|
|
NSString* className=nil;
|
||
|
|
className=[pageDefElement className];
|
||
|
|
NSDebugMLLog(@"low",@"GSWeb Tag className:[%@]",
|
||
|
|
className);
|
||
|
|
if (className)
|
||
|
|
{
|
||
|
|
NSArray* children=nil;
|
||
|
|
children=[self createElementsStartingWithAST:&nextAST
|
||
|
|
stopOnTagNamed:tagName];
|
||
|
|
NSDebugMLLog(@"low",@"CREATE Element of Class:%@",className);
|
||
|
|
NSDebugMLLog(@"low",@"children:%@",children);
|
||
|
|
NSDebugMLLog(@"low",@"associations:%@",_associations);
|
||
|
|
{
|
||
|
|
NSEnumerator* _tagAttrsEnum = [tagAttrs keyEnumerator];
|
||
|
|
id _tagAttrKey=nil;
|
||
|
|
id _tagAttrValue=nil;
|
||
|
|
NSMutableDictionary* _addedAssoc=nil;
|
||
|
|
while ((_tagAttrKey = [_tagAttrsEnum nextObject]))
|
||
|
|
{
|
||
|
|
if (![_tagAttrKey isEqualToString:@"name"]
|
||
|
|
&& ![_associations objectForKey:_tagAttrKey])
|
||
|
|
{
|
||
|
|
if (!_addedAssoc)
|
||
|
|
_addedAssoc=[NSMutableDictionary dictionary];
|
||
|
|
_tagAttrValue=[tagAttrs objectForKey:_tagAttrKey];
|
||
|
|
[_addedAssoc setObject:[GSWAssociation associationWithValue:_tagAttrValue]
|
||
|
|
forKey:_tagAttrKey];
|
||
|
|
};
|
||
|
|
};
|
||
|
|
if (_addedAssoc)
|
||
|
|
{
|
||
|
|
_associations=[_associations dictionaryByAddingEntriesFromDictionary:_addedAssoc];
|
||
|
|
};
|
||
|
|
};
|
||
|
|
element=[GSWApp dynamicElementWithName:className
|
||
|
|
associations:_associations
|
||
|
|
template:[[[GSWHTMLStaticGroup alloc]initWithContentElements:children]autorelease]
|
||
|
|
languages:_languages];
|
||
|
|
if (!element)
|
||
|
|
{
|
||
|
|
ExceptionRaise(@"GSWTemplateParser",
|
||
|
|
@"GSWTemplateParser: Creation failed for element named:%@ className:%@ in template named %@",
|
||
|
|
[pageDefElement elementName],
|
||
|
|
className,
|
||
|
|
_templateName);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ExceptionRaise(@"GSWTemplateParser",
|
||
|
|
@"GSWTemplateParser: No class name in page definition for tag named:%@ pageDefElement=%@ in template named %@",
|
||
|
|
name,
|
||
|
|
pageDefElement,
|
||
|
|
_templateName);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ExceptionRaise(@"GSWTemplateParser",
|
||
|
|
@"No element definition for tag named:%@ in template named %@",
|
||
|
|
name,
|
||
|
|
_templateName);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
_currentAST=nextAST;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (_stopTagName
|
||
|
|
&& [tagName caseInsensitiveCompare:_stopTagName]==NSOrderedSame)
|
||
|
|
{
|
||
|
|
NSDebugMLLog(@"low",@"_stopTagName found: %@",_stopTagName);
|
||
|
|
end=YES;
|
||
|
|
stopBareString=YES;
|
||
|
|
_currentAST=[_currentAST nextSibling];
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
else if ([_currentAST tokenType]==GSWHTMLTokenType_COMMENT)
|
||
|
|
{
|
||
|
|
stopBareString=YES;
|
||
|
|
element=[GSWHTMLComment elementWithString:[_currentAST text]];
|
||
|
|
_currentAST=[_currentAST nextSibling];
|
||
|
|
}
|
||
|
|
NSDebugMLLog(@"low",@"end=%s inHTMLBareString=%s stopBareString=%s",
|
||
|
|
end ? "YES" : "NO",
|
||
|
|
inHTMLBareString ? "YES" : "NO",
|
||
|
|
stopBareString ? "YES" : "NO");
|
||
|
|
if (!element && !end && !stopBareString)
|
||
|
|
{
|
||
|
|
NSDebugMLLog0(@"low",@"!element && !end && !stopBareString");
|
||
|
|
if (!inHTMLBareString)
|
||
|
|
{
|
||
|
|
NSDebugMLLog0(@"low",@"!inHTMLBareString ==> inHTMLBareString=YES");
|
||
|
|
inHTMLBareString=YES;
|
||
|
|
htmlBareString=[[NSMutableString new] autorelease];
|
||
|
|
};
|
||
|
|
NSDebugMLLog(@"low",@"inHTMLBareString: adding [%@]",[_currentAST text]);
|
||
|
|
if ([_currentAST tokenType]==GSWHTMLTokenType_OPENTAG)
|
||
|
|
[htmlBareString appendFormat:@"<%@>",[_currentAST text]];
|
||
|
|
else if ([_currentAST tokenType]==GSWHTMLTokenType_CLOSETAG)
|
||
|
|
[htmlBareString appendFormat:@"</%@>",[_currentAST text]];
|
||
|
|
else
|
||
|
|
[htmlBareString appendString:[_currentAST text]];
|
||
|
|
NSDebugMLLog(@"low",@"htmlBareString: ==> [%@]",htmlBareString);
|
||
|
|
_currentAST=[_currentAST nextSibling];
|
||
|
|
};
|
||
|
|
if (inHTMLBareString && (stopBareString || !_currentAST))
|
||
|
|
{
|
||
|
|
NSDebugMLLog0(@"low",@"inHTMLBareString && stopBareString");
|
||
|
|
NSDebugMLLog(@"low",@"CREATE GSWHTMLBareString:\n%@",htmlBareString);
|
||
|
|
element=[GSWHTMLBareString elementWithString:htmlBareString];
|
||
|
|
NSDebugMLLog(@"low",@"element:%@",element);
|
||
|
|
htmlBareString=nil;
|
||
|
|
inHTMLBareString=NO;
|
||
|
|
};
|
||
|
|
if (element)
|
||
|
|
{
|
||
|
|
NSDebugMLLog(@"low",@"element to add: element=[%@]",element);
|
||
|
|
[_elements addObject:element];
|
||
|
|
element=nil;
|
||
|
|
};
|
||
|
|
NSDebugMLLog(@"low",@"element:%@",element);
|
||
|
|
NSDebugMLLog(@"low",@"inHTMLBareString:%d",(int)inHTMLBareString);
|
||
|
|
NSDebugMLLog(@"low",@"htmlBareString:%@",htmlBareString);
|
||
|
|
};
|
||
|
|
*_AST=_currentAST;
|
||
|
|
NSDebugMLLog(@"low",@"_elements]:%@",_elements);
|
||
|
|
LOGClassFnStop();
|
||
|
|
return _elements;
|
||
|
|
};
|
||
|
|
|
||
|
|
@end
|
||
|
|
|