mirror of
https://github.com/gnustep/libs-gui.git
synced 2025-05-30 03:00:37 +00:00
Update of parser
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@6500 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
FredKiefer
parent
6609cdb20d
commit
2620ecba17
7 changed files with 992 additions and 345 deletions
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@ -53,215 +53,384 @@ readNSString(StringContext *ctxt)
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we must implement from the rtfConsumerSkeleton.h file (Supporting files)
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this includes the yacc error handling and output
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*/
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#define GSfontDictName @"fonts"
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#define GScurrentTextPosition @"textPosition"
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#define GSresultName @"result"
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#define GSchanged @"changed"
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#define GSparagraph @"paragraph"
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#define GSfontName @"fontName"
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#define GSfontSize @"fontSize"
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#define GSbold @"bold"
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#define GSitalic @"italic"
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#define GSunderline @"underline"
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#define GSscript @"script"
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#define GSdocumentAttributes @"documentAttributes"
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#define CTXT ((NSMutableDictionary *)ctxt)
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#define FONTS [CTXT objectForKey:GSRTFfontDictName]
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#define RESULT [CTXT objectForKey:GSRTFresultName]
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#define FONTS [CTXT objectForKey: GSfontDictName]
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#define RESULT [CTXT objectForKey: GSresultName]
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#define CHANGED [[CTXT objectForKey: GSchanged] boolValue]
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#define SETCHANGED(flag) [CTXT setObject: [NSNumber numberWithBool: flag] forKey: GSchanged]
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#define PARAGRAPH [CTXT objectForKey: GSparagraph]
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#define GSRTFfontDictName @"fonts"
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#define GSRTFcurrentTextPosition @"textPosition"
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#define GSRTFresultName @"result"
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#define GSRTFboldRange @"boldOn"
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#define GSRTFitalicRange @"italicOn"
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#define GSRTFunderlineRange @"underlineOn"
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#define GSRTFcurrentFont @"currentFont"
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#define GSRTFdocumentAttributes @"documentAttributes"
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#define halfpoints2points(a) ((a)/2.0)
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// FIXME: How to convert twips to points???
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#define twips2points(a) ((a)/500.0)
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static NSRange MakeRangeFromAbs(int a1,int a2)
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static int textPosition(void *ctxt)
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{
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if(a1< a2) return NSMakeRange(a1,a2-a1);
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else return NSMakeRange(a2,a1-a2);
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return [[CTXT objectForKey: GScurrentTextPosition] intValue];
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}
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/* handle errors (this is the yacc error mech) */
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void GSRTFerror(const char *msg)
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static NSFont *currentFont(void *ctxt)
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{
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NSFont *font;
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BOOL boldOn;
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BOOL italicOn;
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NSString *name;
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float size;
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NSFontTraitMask traits = 0;
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int weight;
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name = [CTXT objectForKey: GSfontName];
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size = [[CTXT objectForKey: GSfontSize] floatValue];
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boldOn = [[CTXT objectForKey: GSbold] boolValue];
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italicOn = [[CTXT objectForKey: GSitalic] boolValue];
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if (boldOn)
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{
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weight = 9;
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traits |= NSBoldFontMask;
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}
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else
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{
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weight = 6;
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traits |= NSUnboldFontMask;
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}
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if (italicOn)
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{
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traits |= NSItalicFontMask;
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}
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else
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{
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traits |= NSUnitalicFontMask;
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}
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font = [[NSFontManager sharedFontManager] fontWithFamily: name
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traits: traits
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weight: weight
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size: size];
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return font;
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}
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/* handle errors (this is the yacc error mech) */
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void GSRTFerror(const char *msg)
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{
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[NSException raise:NSInvalidArgumentException
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format:@"Syntax error in RTF:%s", msg];
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}
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void GSRTFgenericRTFcommand(void *ctxt, RTFcmd cmd)
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void GSRTFgenericRTFcommand(void *ctxt, RTFcmd cmd)
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{
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fprintf(stderr, "encountered rtf cmd:%s", cmd.name);
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if (cmd.isEmpty) fprintf(stderr, " argument is empty\n");
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else fprintf(stderr, " argument is %d\n", cmd.parameter);
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NSLog(@"encountered rtf cmd:%s", cmd.name);
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if (cmd.isEmpty)
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NSLog(@" argument is empty\n");
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else
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NSLog(@" argument is %d\n", cmd.parameter);
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}
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//Start: we're doing some initialization
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void GSRTFstart(void *ctxt)
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void GSRTFstart(void *ctxt)
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{
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[CTXT setObject:[NSNumber numberWithInt:0] forKey: GSRTFcurrentTextPosition];
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[CTXT setObject:[NSFont userFontOfSize:12] forKey: GSRTFcurrentFont];
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[CTXT setObject:[NSMutableDictionary dictionary] forKey: GSRTFfontDictName];
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NSFont *font = [NSFont userFontOfSize:12];
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[CTXT setObject: [NSNumber numberWithInt:0] forKey: GScurrentTextPosition];
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[CTXT setObject: [NSMutableDictionary dictionary] forKey: GSfontDictName];
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SETCHANGED(YES);
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[CTXT setObject: [NSMutableParagraphStyle defaultParagraphStyle]
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forKey: GSparagraph];
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[CTXT setObject: [font familyName] forKey: GSfontName];
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[CTXT setObject: [NSNumber numberWithFloat: 12.0] forKey: GSfontSize];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSbold];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSitalic];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSunderline];
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[CTXT setObject: [NSNumber numberWithInt: 0] forKey: GSscript];
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[RESULT beginEditing];
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}
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// Finished to parse one piece of RTF.
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void GSRTFstop(void *ctxt)
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void GSRTFstop(void *ctxt)
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{
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//<!> close all open bolds et al.
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[RESULT beginEditing];
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[RESULT endEditing];
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}
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void GSRTFopenBlock(void *ctxt)
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void GSRTFopenBlock(void *ctxt)
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{
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// FIXME: Should push the current state on a stack
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}
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void GSRTFcloseBlock(void *ctxt)
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void GSRTFcloseBlock(void *ctxt)
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{
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// FIXME: Should pop the current state from a stack
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}
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void GSRTFmangleText(void *ctxt, const char *text)
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void GSRTFmangleText(void *ctxt, const char *text)
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{
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int oldPosition=[[CTXT objectForKey: GSRTFcurrentTextPosition] intValue],
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textlen=strlen(text),
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newPosition=oldPosition + textlen;
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NSRange insertionRange=NSMakeRange(oldPosition,0);
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NSDictionary *attributes=[NSDictionary dictionaryWithObjectsAndKeys:
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[CTXT objectForKey:GSRTFcurrentFont],
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NSFontAttributeName,nil];
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[CTXT setObject:[NSNumber numberWithInt:newPosition]
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forKey: GSRTFcurrentTextPosition];
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[RESULT replaceCharactersInRange:insertionRange
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withString:[NSString stringWithCString:text]];
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[RESULT setAttributes:attributes range:NSMakeRange(oldPosition,textlen)];
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int oldPosition = textPosition(ctxt);
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int textlen = strlen(text);
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int newPosition = oldPosition + textlen;
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NSRange insertionRange = NSMakeRange(oldPosition,0);
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NSDictionary *attributes;
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NSFont *font;
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if (textlen)
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{
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[CTXT setObject:[NSNumber numberWithInt: newPosition]
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forKey: GScurrentTextPosition];
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[RESULT replaceCharactersInRange: insertionRange
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withString: [NSString stringWithCString:text]];
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if (CHANGED)
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{
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font = currentFont(ctxt);
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attributes = [NSDictionary dictionaryWithObjectsAndKeys:
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font, NSFontAttributeName,
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[CTXT objectForKey: GSscript], NSSuperscriptAttributeName,
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PARAGRAPH, NSParagraphStyleAttributeName,
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nil];
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[RESULT setAttributes: attributes range:
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NSMakeRange(oldPosition, textlen)];
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SETCHANGED(NO);
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}
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}
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}
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void GSRTFregisterFont(void *ctxt, const char *fontName,
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RTFfontFamily family, int fontNumber)
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void GSRTFregisterFont(void *ctxt, const char *fontName,
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RTFfontFamily family, int fontNumber)
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{
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NSMutableDictionary *fonts = FONTS;
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NSString *fontNameString;
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NSNumber *fontId = [NSNumber numberWithInt:fontNumber];
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NSNumber *fontId = [NSNumber numberWithInt: fontNumber];
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if (!fontName || !*fontName || !fontId) // <?> fontId ist nie null
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if (!fontName || !*fontName)
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{
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[NSException raise:NSInvalidArgumentException
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format:@"Error in RTF (font omitted?), position:%d",
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[[CTXT objectForKey:GSRTFcurrentTextPosition] intValue]];
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textPosition(ctxt)];
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}
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// exclude trailing ';' from fontName
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fontNameString = [NSString stringWithCString:fontName length:strlen(fontName)-1];
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[fonts setObject:fontNameString forKey:fontId];
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// exclude trailing ';' from fontName
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fontNameString = [NSString stringWithCString: fontName
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length: strlen(fontName)-1];
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[FONTS setObject: fontNameString forKey: fontId];
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}
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void GSRTFchangeFontTo(void *ctxt, int fontNumber)
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void GSRTFfontNumber(void *ctxt, int fontNumber)
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{
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NSDictionary *fonts = FONTS;
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NSNumber *fontId = [NSNumber numberWithInt:fontNumber];
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NSFont *font=[NSFont fontWithName:[fonts objectForKey:fontId]
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size:[[CTXT objectForKey:GSRTFcurrentFont] pointSize]];
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NSNumber *fontId = [NSNumber numberWithInt: fontNumber];
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NSString *fontName = [FONTS objectForKey: fontId];
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if (!font) /* we're about to set an unknown font */
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if (fontName == nil)
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{
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[NSException raise:NSInvalidArgumentException
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format:@"Error in RTF (referring to undefined font \\f%d), position:%d",
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/* we're about to set an unknown font */
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[NSException raise: NSInvalidArgumentException
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format: @"Error in RTF (referring to undefined font \\f%d), position:%d",
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fontNumber,
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[[CTXT objectForKey:GSRTFcurrentTextPosition] intValue]];
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} else {
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font=[[NSFontManager sharedFontManager]
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convertFont:[CTXT objectForKey:GSRTFcurrentFont]
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toFamily:[font familyName]];
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[CTXT setObject:font forKey: GSRTFcurrentFont];
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textPosition(ctxt)];
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}
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else
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{
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if (![fontName isEqual: [CTXT objectForKey: GSfontName]])
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{
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[CTXT setObject: fontName forKey: GSfontName];
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SETCHANGED(YES);
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}
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}
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}
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// <N> fontSize is in halfpoints according to spec
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#define fs2points(a) ((a)/2.0)
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void GSRTFchangeFontSizeTo(void *ctxt, int fontSize)
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void GSRTFfontSize(void *ctxt, int fontSize)
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{
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[CTXT setObject:[[NSFontManager sharedFontManager]
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convertFont:[CTXT objectForKey:GSRTFcurrentFont]
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toSize:fs2points(fontSize)]
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forKey:GSRTFcurrentFont];
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}
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static NSRange rangeForContextAndAttribute(void *ctxt, NSString *attrib)
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{
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NSString *attribStartString=[CTXT objectForKey:GSRTFboldRange];
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float size = halfpoints2points(fontSize);
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if(!attribStartString)
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if (size != [[CTXT objectForKey: GSfontSize] floatValue])
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{
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NSLog(@"RTF anomality (attribute:%@ off statement unpaired with on statement), position:%d",
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attrib, [[CTXT objectForKey:GSRTFcurrentTextPosition] intValue]);
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return NSMakeRange(0, 0);
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}
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return MakeRangeFromAbs([attribStartString intValue],
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[[CTXT objectForKey:GSRTFcurrentTextPosition] intValue]);
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}
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void GSRTFhandleItalicAttribute(void *ctxt, BOOL state)
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{
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if(!state) // this indicates a bold off
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{
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[RESULT addAttribute:NSFontAttributeName
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value:[[NSFontManager sharedFontManager]
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convertFont:[CTXT objectForKey:GSRTFcurrentFont]
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toHaveTrait:NSItalicFontMask]
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range:rangeForContextAndAttribute(ctxt,GSRTFboldRange)];
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} else {
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[CTXT setObject:[CTXT objectForKey:GSRTFcurrentTextPosition] forKey:GSRTFitalicRange];
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[CTXT setObject: [NSNumber numberWithFloat: size]
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forKey: GSfontSize];
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SETCHANGED(YES);
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}
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}
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void GSRTFhandleBoldAttribute(void *ctxt, BOOL state)
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{
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if(!state) // this indicates a bold off
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{
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[RESULT addAttribute:NSFontAttributeName
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value:[[NSFontManager sharedFontManager]
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convertFont:[CTXT objectForKey:GSRTFcurrentFont]
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toHaveTrait:NSBoldFontMask]
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range:rangeForContextAndAttribute(ctxt,GSRTFboldRange)];
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} else {
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[CTXT setObject:[CTXT objectForKey:GSRTFcurrentTextPosition]
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forKey:GSRTFboldRange];
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}
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}
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void GSRTFhandleDocumentAttribute(void *ctxt, int attrib)
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void GSRTFpaperWidth(void *ctxt, int width)
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{
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}
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NSMutableAttributedString *attributedStringFromRTF(NSString *rtfString)
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void GSRTFpaperHeight(void *ctxt, int height)
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{
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}
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void GSRTFmarginLeft(void *ctxt, int margin)
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{
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}
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void GSRTFmarginRight(void *ctxt, int margin)
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{
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}
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void GSRTFfirstLineIndent(void *ctxt, int indent)
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{
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NSMutableParagraphStyle *para = PARAGRAPH;
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float findent = twips2points(indent);
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if ([para firstLineHeadIndent] != findent)
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{
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[para setFirstLineHeadIndent: findent];
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SETCHANGED(YES);
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}
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}
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void GSRTFleftIndent(void *ctxt, int indent)
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{
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NSMutableParagraphStyle *para = PARAGRAPH;
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float findent = twips2points(indent);
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if ([para headIndent] != findent)
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{
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[para setHeadIndent: findent];
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SETCHANGED(YES);
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}
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}
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void GSRTFalignCenter(void *ctxt)
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{
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NSMutableParagraphStyle *para = PARAGRAPH;
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if ([para alignment] != NSCenterTextAlignment)
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{
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[para setAlignment: NSCenterTextAlignment];
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SETCHANGED(YES);
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}
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}
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void GSRTFalignLeft(void *ctxt)
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{
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NSMutableParagraphStyle *para = PARAGRAPH;
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if ([para alignment] != NSLeftTextAlignment)
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{
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[para setAlignment: NSLeftTextAlignment];
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SETCHANGED(YES);
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}
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}
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void GSRTFalignRight(void *ctxt)
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{
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NSMutableParagraphStyle *para = PARAGRAPH;
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if ([para alignment] != NSRightTextAlignment)
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{
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[para setAlignment: NSRightTextAlignment];
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SETCHANGED(YES);
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}
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}
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void GSRTFstyle(void *ctxt, int style)
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{
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}
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void GSRTFcolorbg(void *ctxt, int color)
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{
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}
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void GSRTFcolorfg(void *ctxt, int color)
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{
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}
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void GSRTFsubscript(void *ctxt, int script)
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{
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script = (int) -halfpoints2points(script);
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if (script != [[CTXT objectForKey: GSscript] intValue])
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{
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[CTXT setObject: [NSNumber numberWithInt: script]
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forKey: GSscript];
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SETCHANGED(YES);
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}
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}
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void GSRTFsuperscript(void *ctxt, int script)
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{
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script = (int) halfpoints2points(script);
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if (script != [[CTXT objectForKey: GSscript] intValue])
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{
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[CTXT setObject: [NSNumber numberWithInt: script]
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forKey: GSscript];
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SETCHANGED(YES);
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}
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}
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void GSRTFitalic(void *ctxt, BOOL state)
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{
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if (state != [[CTXT objectForKey: GSitalic] boolValue])
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{
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[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSitalic];
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SETCHANGED(YES);
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}
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}
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void GSRTFbold(void *ctxt, BOOL state)
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{
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if (state != [[CTXT objectForKey: GSbold] boolValue])
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{
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[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSbold];
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SETCHANGED(YES);
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}
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}
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void GSRTFunderline(void *ctxt, BOOL state)
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{
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if (state != [[CTXT objectForKey: GSunderline] boolValue])
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{
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[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSunderline];
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SETCHANGED(YES);
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}
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}
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BOOL parseRTFintoAttributedString(NSString *rtfString,
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NSMutableAttributedString *result,
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NSDictionary **dict)
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{
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RTFscannerCtxt scanner;
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StringContext stringCtxt;
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NSMutableDictionary *myDict = [NSMutableDictionary dictionary];
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NSMutableAttributedString *result=[[NSMutableAttributedString alloc] init];
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|
||||
[myDict setObject:result forKey: GSRTFresultName];
|
||||
[myDict setObject: result forKey: GSresultName];
|
||||
initStringContext(&stringCtxt, rtfString);
|
||||
lexInitContext(&scanner, &stringCtxt, (int (*)(void*))readNSString);
|
||||
GSRTFparse(myDict, &scanner);
|
||||
|
||||
return [result autorelease];
|
||||
|
||||
// document attributes
|
||||
if (dict)
|
||||
(*dict)=[myDict objectForKey: GSdocumentAttributes];
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
@implementation NSAttributedString (RTFParser)
|
||||
|
||||
- (id) initWithRTF: (NSData*)data
|
||||
documentAttributes: (NSDictionary**)dict
|
||||
NSMutableAttributedString *attributedStringFromRTF(NSString *rtfString)
|
||||
{
|
||||
RTFscannerCtxt scanner;
|
||||
StringContext stringCtxt;
|
||||
NSMutableDictionary *myDict = [NSMutableDictionary dictionary];
|
||||
NSString *parseString = [NSString stringWithCString:[data bytes]
|
||||
length:[data length]];
|
||||
NSMutableAttributedString *result =
|
||||
[[[NSMutableAttributedString alloc] init] autorelease];
|
||||
NSMutableAttributedString *result = [[NSMutableAttributedString alloc] init];
|
||||
|
||||
[myDict setObject:result forKey: GSRTFresultName];
|
||||
initStringContext(&stringCtxt, parseString);
|
||||
lexInitContext(&scanner, &stringCtxt, (int (*)(void*))readNSString);
|
||||
GSRTFparse(myDict, &scanner);
|
||||
|
||||
if (dict && [myDict objectForKey:GSRTFdocumentAttributes])
|
||||
(*dict)=[myDict objectForKey:GSRTFdocumentAttributes]; // document
|
||||
[self autorelease];
|
||||
return [[[self class] alloc] initWithAttributedString:result];
|
||||
}
|
||||
parseRTFintoAttributedString(rtfString, result, NULL);
|
||||
|
||||
@end
|
||||
return AUTORELEASE(result);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue