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SMLSyntaxColouring.m
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SMLSyntaxColouring.m
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// SMLTextView delegate
/*
MGSFragaria
Written by Jonathan Mitchell, jonathan@mugginsoft.com
Find the latest version at https://github.com/mugginsoft/Fragaria
Smultron version 3.6b1, 2009-09-12
Written by Peter Borg, pgw3@mac.com
Find the latest version at http://smultron.sourceforge.net
Copyright 2004-2009 Peter Borg
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
*/
#import "MGSFragaria.h"
#import "MGSFragariaFramework.h"
// class extension
@interface SMLSyntaxColouring()
- (void)parseSyntaxDictionary:(NSDictionary *)syntaxDictionary;
- (void)applySyntaxDefinition;
- (NSString *)assignSyntaxDefinition;
- (void)performDocumentDelegateSelector:(SEL)selector withObject:(id)object;
- (void)autocompleteWordsTimerSelector:(NSTimer *)theTimer;
- (void)liveUpdatePreviewTimerSelector:(NSTimer *)theTimer;
- (NSString *)completeString;
- (void)prepareRegularExpressions;
- (void)applyColourDefaults;
- (void)recolourRange:(NSRange)range;
- (void)removeAllColours;
- (void)removeColoursFromRange:(NSRange)range;
- (NSString *)guessSyntaxDefinitionExtensionFromFirstLine:(NSString *)firstLine;
- (void)pageRecolour;
- (void)setColour:(NSDictionary *)colour range:(NSRange)range;
- (void)highlightLineRange:(NSRange)lineRange;
- (void)undoManagerDidUndo:(NSNotification *)aNote;
@end
@implementation SMLSyntaxColouring
@synthesize reactToChanges, functionDefinition, removeFromFunction, secondLayoutManager,
thirdLayoutManager, fourthLayoutManager, undoManager;
#pragma mark -
#pragma mark Instance methods
/*
- init
*/
- (id)init
{
self = [self initWithDocument:nil];
return self;
}
/*
- initWithDocument:
*/
- (id)initWithDocument:(id)theDocument
{
if ((self = [super init])) {
NSAssert(theDocument, @"bad document");
// retain the document
document = theDocument;
undoManager = [[[NSUndoManager alloc] init] autorelease];
// configure the document text view
NSTextView *textView = [document valueForKey:@"firstTextView"];
NSAssert([textView isKindOfClass:[NSTextView class]], @"bad textview");
[textView setDelegate:self];
[[textView textStorage] setDelegate:self];
// configure ivars
lastCursorLocation = 0;
lastLineHighlightRange = NSMakeRange(0, 0);
reactToChanges = YES;
// configure layout managers
firstLayoutManager = (SMLLayoutManager *)[textView layoutManager];
// configure colouring
[self applyColourDefaults];
// letter character set
letterCharacterSet = [NSCharacterSet letterCharacterSet];
// keyword start character set
NSMutableCharacterSet *temporaryCharacterSet = [[[NSCharacterSet letterCharacterSet] mutableCopy] autorelease];
[temporaryCharacterSet addCharactersInString:@"_:@#"];
keywordStartCharacterSet = [temporaryCharacterSet copy];
// keyword end character set
temporaryCharacterSet = [[[NSCharacterSet whitespaceAndNewlineCharacterSet] mutableCopy] autorelease];
[temporaryCharacterSet formUnionWithCharacterSet:[NSCharacterSet symbolCharacterSet]];
[temporaryCharacterSet formUnionWithCharacterSet:[NSCharacterSet punctuationCharacterSet]];
[temporaryCharacterSet removeCharactersInString:@"_"];
keywordEndCharacterSet = [temporaryCharacterSet copy];
// attributes character set
temporaryCharacterSet = [[[NSCharacterSet alphanumericCharacterSet] mutableCopy] autorelease];
[temporaryCharacterSet addCharactersInString:@" -"]; // If there are two spaces before an attribute
attributesCharacterSet = [temporaryCharacterSet copy];
// configure syntax definition
[self applySyntaxDefinition];
// add undo notification observers
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(undoManagerDidUndo:)
name:@"NSUndoManagerDidUndoChangeNotification"
object:undoManager];
// add document KVO observers
[document addObserver:self forKeyPath:@"syntaxDefinition" options:NSKeyValueObservingOptionNew context:@"syntaxDefinition"];
// add NSUserDefaultsController KVO observers
NSUserDefaultsController *defaultsController = [NSUserDefaultsController sharedUserDefaultsController];
[defaultsController addObserver:self forKeyPath:@"values.CommandsColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.CommentsColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.InstructionsColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.KeywordsColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.AutocompleteColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.VariablesColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.StringsColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.AttributesColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourCommands" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourComments" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourInstructions" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourKeywords" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourAutocomplete" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourVariables" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourStrings" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourAttributes" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourMultiLineStrings" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.OnlyColourTillTheEndOfLine" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.HighlightCurrentLine" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.HighlightLineColourWell" options:NSKeyValueObservingOptionNew context:@"ColoursChanged"];
[defaultsController addObserver:self forKeyPath:@"values.ColourMultiLineStrings" options:NSKeyValueObservingOptionNew context:@"MultiLineChanged"];
}
return self;
}
#pragma mark -
#pragma mark KVO
/*
- observeValueForKeyPath:ofObject:change:context:
*/
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if ([(NSString *)context isEqualToString:@"ColoursChanged"]) {
[self applyColourDefaults];
[self pageRecolour];
if ([[SMLDefaults valueForKey:@"HighlightCurrentLine"] boolValue] == YES) {
NSRange range = [[self completeString] lineRangeForRange:[[document valueForKey:@"firstTextView"] selectedRange]];
[self highlightLineRange:range];
lastLineHighlightRange = range;
} else {
[self highlightLineRange:NSMakeRange(0, 0)];
}
} else if ([(NSString *)context isEqualToString:@"MultiLineChanged"]) {
[self prepareRegularExpressions];
[self pageRecolour];
} else if ([(NSString *)context isEqualToString:@"syntaxDefinition"]) {
[self applySyntaxDefinition];
[self removeAllColours];
[self pageRecolour];
} else {
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
#pragma mark -
#pragma mark Syntax definition handling
/*
- applySyntaxDefinition
*/
- (void)applySyntaxDefinition
{
NSString *definitionName = [document valueForKey:@"syntaxDefinition"];
// if document has no syntax definition name then assign one
if (!definitionName) {
definitionName = [self assignSyntaxDefinition];
}
// get syntax dictionary
NSDictionary *syntaxDictionary = [[MGSSyntaxController sharedInstance] syntaxDictionaryWithName:definitionName];
// parse
[self parseSyntaxDictionary:syntaxDictionary];
}
/*
- assignSyntaxDefinition
*/
- (NSString *)assignSyntaxDefinition
{
NSString *definitionName = [document valueForKey:@"syntaxDefinition"];
if (definitionName) return definitionName;
NSString *defaultDefinitionName = [SMLDefaults valueForKey:@"SyntaxColouringPopUpString"];
NSString *documentExtension = [[document valueForKey:@"name"] pathExtension];
if ([[SMLDefaults valueForKey:@"SyntaxColouringMatrix"] integerValue] == 1) { // Always use...
definitionName = defaultDefinitionName;
} else {
NSString *lowercaseExtension = nil;
// If there is no extension try to guess definition from first line
if ([documentExtension isEqualToString:@""]) {
NSString *string = [[[document valueForKey:@"firstTextScrollView"] documentView] string];
NSString *firstLine = [string substringWithRange:[string lineRangeForRange:NSMakeRange(0,0)]];
if ([firstLine hasPrefix:@"#!"] || [firstLine hasPrefix:@"%"] || [firstLine hasPrefix:@"<?"]) {
lowercaseExtension = [self guessSyntaxDefinitionExtensionFromFirstLine:firstLine];
}
} else {
lowercaseExtension = [documentExtension lowercaseString];
}
if (lowercaseExtension) {
definitionName = [[MGSSyntaxController sharedInstance] syntaxDefinitionNameWithExtension:lowercaseExtension];
}
}
if (!definitionName) {
definitionName = [MGSSyntaxController standardSyntaxDefinitionName];
}
// update document definition
[document setValue:definitionName forKey:@"syntaxDefinition"];
return definitionName;
}
/*
- parseSyntaxDictionary
*/
- (void)parseSyntaxDictionary:(NSDictionary *)syntaxDictionary
{
NSMutableArray *keywordsAndAutocompleteWordsTemporary = [NSMutableArray array];
// If the plist file is malformed be sure to set the values to something
if ([syntaxDictionary valueForKey:@"keywords"]) {
keywords = [[NSSet alloc] initWithArray:[syntaxDictionary valueForKey:@"keywords"]];
[keywordsAndAutocompleteWordsTemporary addObjectsFromArray:[syntaxDictionary valueForKey:@"keywords"]];
}
if ([syntaxDictionary valueForKey:@"autocompleteWords"]) {
autocompleteWords = [[NSSet alloc] initWithArray:[syntaxDictionary valueForKey:@"autocompleteWords"]];
[keywordsAndAutocompleteWordsTemporary addObjectsFromArray:[syntaxDictionary valueForKey:@"autocompleteWords"]];
}
if ([[SMLDefaults valueForKey:@"ColourAutocompleteWordsAsKeywords"] boolValue] == YES) {
keywords = [NSSet setWithArray:keywordsAndAutocompleteWordsTemporary];
}
keywordsAndAutocompleteWords = [keywordsAndAutocompleteWordsTemporary sortedArrayUsingSelector:@selector(compare:)];
if ([syntaxDictionary valueForKey:@"recolourKeywordIfAlreadyColoured"]) {
recolourKeywordIfAlreadyColoured = [[syntaxDictionary valueForKey:@"recolourKeywordIfAlreadyColoured"] boolValue];
}
if ([syntaxDictionary valueForKey:@"keywordsCaseSensitive"]) {
keywordsCaseSensitive = [[syntaxDictionary valueForKey:@"keywordsCaseSensitive"] boolValue];
}
if (keywordsCaseSensitive == NO) {
NSMutableArray *lowerCaseKeywords = [[NSMutableArray alloc] init];
for (id item in keywords) {
[lowerCaseKeywords addObject:[item lowercaseString]];
}
NSSet *lowerCaseKeywordsSet = [[NSSet alloc] initWithArray:lowerCaseKeywords];
keywords = lowerCaseKeywordsSet;
}
if ([syntaxDictionary valueForKey:@"beginCommand"]) {
beginCommand = [syntaxDictionary valueForKey:@"beginCommand"];
} else {
beginCommand = @"";
}
if ([syntaxDictionary valueForKey:@"endCommand"]) {
endCommand = [syntaxDictionary valueForKey:@"endCommand"];
} else {
endCommand = @"";
}
if ([syntaxDictionary valueForKey:@"beginInstruction"]) {
beginInstruction = [syntaxDictionary valueForKey:@"beginInstruction"];
} else {
beginInstruction = @"";
}
if ([syntaxDictionary valueForKey:@"endInstruction"]) {
endInstruction = [syntaxDictionary valueForKey:@"endInstruction"];
} else {
endInstruction = @"";
}
if ([syntaxDictionary valueForKey:@"beginVariable"]) {
beginVariable = [NSCharacterSet characterSetWithCharactersInString:[syntaxDictionary valueForKey:@"beginVariable"]];
}
if ([syntaxDictionary valueForKey:@"endVariable"]) {
endVariable = [NSCharacterSet characterSetWithCharactersInString:[syntaxDictionary valueForKey:@"endVariable"]];
} else {
endVariable = [NSCharacterSet characterSetWithCharactersInString:@""];
}
if ([syntaxDictionary valueForKey:@"firstString"]) {
firstString = [syntaxDictionary valueForKey:@"firstString"];
if (![[syntaxDictionary valueForKey:@"firstString"] isEqualToString:@""]) {
firstStringUnichar = [[syntaxDictionary valueForKey:@"firstString"] characterAtIndex:0];
}
} else {
firstString = @"";
}
if ([syntaxDictionary valueForKey:@"secondString"]) {
secondString = [syntaxDictionary valueForKey:@"secondString"];
if (![[syntaxDictionary valueForKey:@"secondString"] isEqualToString:@""]) {
secondStringUnichar = [[syntaxDictionary valueForKey:@"secondString"] characterAtIndex:0];
}
} else {
secondString = @"";
}
// single line comment definitions
if ([syntaxDictionary valueForKey:@"firstSingleLineComment"]) {
firstSingleLineComment = [syntaxDictionary valueForKey:@"firstSingleLineComment"];
} else {
firstSingleLineComment = @"";
}
singleLineComments = [NSMutableArray arrayWithCapacity:2];
[singleLineComments addObject:firstSingleLineComment];
if ([syntaxDictionary valueForKey:@"secondSingleLineComment"]) {
secondSingleLineComment = [syntaxDictionary valueForKey:@"secondSingleLineComment"];
} else {
secondSingleLineComment = @"";
}
[singleLineComments addObject:secondSingleLineComment];
// multi line comment definitions
if ([syntaxDictionary valueForKey:@"beginFirstMultiLineComment"]) {
beginFirstMultiLineComment = [syntaxDictionary valueForKey:@"beginFirstMultiLineComment"];
} else {
beginFirstMultiLineComment = @"";
}
if ([syntaxDictionary valueForKey:@"endFirstMultiLineComment"]) {
endFirstMultiLineComment = [syntaxDictionary valueForKey:@"endFirstMultiLineComment"];
} else {
endFirstMultiLineComment = @"";
}
multiLineComments = [NSMutableArray arrayWithCapacity:2];
[multiLineComments addObject:[NSArray arrayWithObjects:beginFirstMultiLineComment, endFirstMultiLineComment, nil]];
if ([syntaxDictionary valueForKey:@"beginSecondMultiLineComment"]) {
beginSecondMultiLineComment = [syntaxDictionary valueForKey:@"beginSecondMultiLineComment"];
} else {
beginSecondMultiLineComment = @"";
}
if ([syntaxDictionary valueForKey:@"endSecondMultiLineComment"]) {
endSecondMultiLineComment = [syntaxDictionary valueForKey:@"endSecondMultiLineComment"];
} else {
endSecondMultiLineComment = @"";
}
[multiLineComments addObject:[NSArray arrayWithObjects:beginSecondMultiLineComment, endSecondMultiLineComment, nil]];
if ([syntaxDictionary valueForKey:@"functionDefinition"]) {
self.functionDefinition = [syntaxDictionary valueForKey:@"functionDefinition"];
} else {
self.functionDefinition = @"";
}
if ([syntaxDictionary valueForKey:@"removeFromFunction"]) {
self.removeFromFunction = [syntaxDictionary valueForKey:@"removeFromFunction"];
} else {
self.removeFromFunction = @"";
}
if ([syntaxDictionary valueForKey:@"excludeFromKeywordStartCharacterSet"]) {
NSMutableCharacterSet *temporaryCharacterSet = [[keywordStartCharacterSet mutableCopy] autorelease];
[temporaryCharacterSet removeCharactersInString:[syntaxDictionary valueForKey:@"excludeFromKeywordStartCharacterSet"]];
keywordStartCharacterSet = [temporaryCharacterSet copy];
}
if ([syntaxDictionary valueForKey:@"excludeFromKeywordEndCharacterSet"]) {
NSMutableCharacterSet *temporaryCharacterSet = [[keywordEndCharacterSet mutableCopy] autorelease];
[temporaryCharacterSet removeCharactersInString:[syntaxDictionary valueForKey:@"excludeFromKeywordEndCharacterSet"]];
keywordEndCharacterSet = [temporaryCharacterSet copy];
}
if ([syntaxDictionary valueForKey:@"includeInKeywordStartCharacterSet"]) {
NSMutableCharacterSet *temporaryCharacterSet = [[keywordStartCharacterSet mutableCopy] autorelease];
[temporaryCharacterSet addCharactersInString:[syntaxDictionary valueForKey:@"includeInKeywordStartCharacterSet"]];
keywordStartCharacterSet = [temporaryCharacterSet copy];
}
if ([syntaxDictionary valueForKey:@"includeInKeywordEndCharacterSet"]) {
NSMutableCharacterSet *temporaryCharacterSet = [[keywordEndCharacterSet mutableCopy] autorelease];
[temporaryCharacterSet addCharactersInString:[syntaxDictionary valueForKey:@"includeInKeywordEndCharacterSet"]];
keywordEndCharacterSet = [temporaryCharacterSet copy];
}
[self prepareRegularExpressions];
}
/*
- guessSyntaxDefinitionExtensionFromFirstLine:
*/
- (NSString *)guessSyntaxDefinitionExtensionFromFirstLine:(NSString *)firstLine
{
NSString *returnString = nil;
NSRange firstLineRange = NSMakeRange(0, [firstLine length]);
if ([firstLine rangeOfString:@"perl" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"pl";
} else if ([firstLine rangeOfString:@"wish" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"tcl";
} else if ([firstLine rangeOfString:@"sh" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"sh";
} else if ([firstLine rangeOfString:@"php" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"php";
} else if ([firstLine rangeOfString:@"python" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"py";
} else if ([firstLine rangeOfString:@"awk" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"awk";
} else if ([firstLine rangeOfString:@"xml" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"xml";
} else if ([firstLine rangeOfString:@"ruby" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"rb";
} else if ([firstLine rangeOfString:@"%!ps" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"ps";
} else if ([firstLine rangeOfString:@"%pdf" options:NSCaseInsensitiveSearch range:firstLineRange].location != NSNotFound) {
returnString = @"pdf";
}
return returnString;
}
#pragma mark -
#pragma mark Regex handling
/*
- prepareRegularExpressions
*/
- (void)prepareRegularExpressions
{
if ([[SMLDefaults valueForKey:@"ColourMultiLineStrings"] boolValue] == NO) {
firstStringPattern = [[ICUPattern alloc] initWithString:[NSString stringWithFormat:@"\\W%@[^%@\\\\\\r\\n]*+(?:\\\\(?:.|$)[^%@\\\\\\r\\n]*+)*+%@", firstString, firstString, firstString, firstString]];
secondStringPattern = [[ICUPattern alloc] initWithString:[NSString stringWithFormat:@"\\W%@[^%@\\\\\\r\\n]*+(?:\\\\(?:.|$)[^%@\\\\]*+)*+%@", secondString, secondString, secondString, secondString]];
} else {
firstStringPattern = [[ICUPattern alloc] initWithString:[NSString stringWithFormat:@"\\W%@[^%@\\\\]*+(?:\\\\(?:.|$)[^%@\\\\]*+)*+%@", firstString, firstString, firstString, firstString]];
secondStringPattern = [[ICUPattern alloc] initWithString:[NSString stringWithFormat:@"\\W%@[^%@\\\\]*+(?:\\\\(?:.|$)[^%@\\\\]*+)*+%@", secondString, secondString, secondString, secondString]];
}
}
#pragma mark -
#pragma mark Accessors
/*
- completeString
*/
- (NSString *)completeString
{
return [[document valueForKey:@"firstTextView"] string];
}
#pragma mark -
#pragma mark Colouring
/*
- removeAllColours
*/
- (void)removeAllColours
{
NSRange wholeRange = NSMakeRange(0, [[self completeString] length]);
[firstLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:wholeRange];
if (secondLayoutManager != nil) {
[secondLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:wholeRange];
}
if (thirdLayoutManager != nil) {
[thirdLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:wholeRange];
}
if (fourthLayoutManager != nil) {
[fourthLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:wholeRange];
}
}
/*
- removeColoursFromRange
*/
- (void)removeColoursFromRange:(NSRange)range
{
[firstLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:range];
if (secondLayoutManager != nil) {
[secondLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:range];
}
if (thirdLayoutManager != nil) {
[thirdLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:range];
}
if (fourthLayoutManager != nil) {
[fourthLayoutManager removeTemporaryAttribute:NSForegroundColorAttributeName forCharacterRange:range];
}
}
/*
- pageRecolour
*/
- (void)pageRecolour
{
[self pageRecolourTextView:[document valueForKey:@"firstTextView"]];
if (secondLayoutManager != nil) {
[self pageRecolourTextView:[document valueForKey:@"secondTextView"]];
}
if (thirdLayoutManager != nil) {
[self pageRecolourTextView:[document valueForKey:@"thirdTextView"]];
}
if (fourthLayoutManager != nil) {
[self pageRecolourTextView:[document valueForKey:@"fourthTextView"]];
}
}
/*
- pageRecolourTextView:
*/
- (void)pageRecolourTextView:(SMLTextView *)textView
{
if ([[document valueForKey:@"isSyntaxColoured"] boolValue] == NO) {
return;
}
if (textView == nil) {
return;
}
NSRect visibleRect = [[[textView enclosingScrollView] contentView] documentVisibleRect];
NSRange visibleRange = [[textView layoutManager] glyphRangeForBoundingRect:visibleRect inTextContainer:[textView textContainer]];
NSInteger beginningOfFirstVisibleLine = [[textView string] lineRangeForRange:NSMakeRange(visibleRange.location, 0)].location;
NSInteger endOfLastVisibleLine = NSMaxRange([[self completeString] lineRangeForRange:NSMakeRange(NSMaxRange(visibleRange), 0)]);
[self recolourRange:NSMakeRange(beginningOfFirstVisibleLine, endOfLastVisibleLine - beginningOfFirstVisibleLine)];
}
/*
- pageRecolourTextView:options:
*/
- (void)pageRecolourTextView:(SMLTextView *)textView options:(NSDictionary *)options
{
if (!textView) {
return;
}
if ([[document valueForKey:@"isSyntaxColoured"] boolValue] == NO) {
return;
}
// colourAll option
NSNumber *colourAll = [options objectForKey:@"colourAll"];
if (!colourAll || ![colourAll boolValue]) {
[self pageRecolourTextView:textView];
return;
}
[self recolourRange:NSMakeRange(0, [[textView string] length])];
}
/*
- recolourRange:
*/
- (void)recolourRange:(NSRange)range
{
if (reactToChanges == NO) {
return;
}
BOOL shouldOnlyColourTillTheEndOfLine = [[SMLDefaults valueForKey:@"OnlyColourTillTheEndOfLine"] boolValue];
BOOL shouldColourMultiLineStrings = [[SMLDefaults valueForKey:@"ColourMultiLineStrings"] boolValue];
NSString *completeString = [self completeString];
NSRange effectiveRange = range;
NSRange rangeOfLine = NSMakeRange(0, 0);
NSRange foundRange = NSMakeRange(0, 0);
NSRange searchRange = NSMakeRange(0, 0);
NSUInteger searchSyntaxLength = 0;
NSUInteger beginning = 0, end = 0, endOfLine = 0, length = 0;
if (shouldColourMultiLineStrings) { // When multiline strings are coloured it needs to go backwards to find where the string might have started if it's "above" the top of the screen
NSInteger beginFirstStringInMultiLine = [completeString rangeOfString:firstString options:NSBackwardsSearch range:NSMakeRange(0, effectiveRange.location)].location;
if (beginFirstStringInMultiLine != NSNotFound && [[firstLayoutManager temporaryAttributesAtCharacterIndex:beginFirstStringInMultiLine effectiveRange:NULL] isEqualToDictionary:stringsColour]) {
NSInteger startOfLine = [completeString lineRangeForRange:NSMakeRange(beginFirstStringInMultiLine, 0)].location;
effectiveRange = NSMakeRange(startOfLine, range.length + (range.location - startOfLine));
}
}
NSUInteger rangeLocation = effectiveRange.location;
NSUInteger maxRange = NSMaxRange(effectiveRange);
searchString = [completeString substringWithRange:effectiveRange];
NSUInteger searchStringLength = [searchString length];
if (searchStringLength == 0) {
return;
}
NSScanner *scanner = [[NSScanner alloc] initWithString:searchString];
[scanner setCharactersToBeSkipped:nil];
NSScanner *completeDocumentScanner = [[NSScanner alloc] initWithString:completeString];
[completeDocumentScanner setCharactersToBeSkipped:nil];
NSUInteger completeStringLength = [completeString length];
NSUInteger endLocationInMultiLine = 0;
NSUInteger beginLocationInMultiLine = 0;
// uncolour the range
[self removeColoursFromRange:range];
@try {
//
// Commands
//
if (![beginCommand isEqualToString:@""] && [[SMLDefaults valueForKey:@"ColourCommands"] boolValue] == YES) {
searchSyntaxLength = [endCommand length];
unichar beginCommandCharacter = [beginCommand characterAtIndex:0];
unichar endCommandCharacter = [endCommand characterAtIndex:0];
while (![scanner isAtEnd]) {
[scanner scanUpToString:beginCommand intoString:nil];
beginning = [scanner scanLocation];
endOfLine = NSMaxRange([searchString lineRangeForRange:NSMakeRange(beginning, 0)]);
if (![scanner scanUpToString:endCommand intoString:nil] || [scanner scanLocation] >= endOfLine) {
[scanner mgs_setScanLocation:endOfLine];
continue; // Don't colour it if it hasn't got a closing tag
} else {
// To avoid problems with strings like <yada <%=yada%> yada> we need to balance the number of begin- and end-tags
// If ever there's a beginCommand or endCommand with more than one character then do a check first
NSUInteger commandLocation = beginning + 1;
NSUInteger skipEndCommand = 0;
while (commandLocation < endOfLine) {
unichar commandCharacterTest = [searchString characterAtIndex:commandLocation];
if (commandCharacterTest == endCommandCharacter) {
if (!skipEndCommand) {
break;
} else {
skipEndCommand--;
}
}
if (commandCharacterTest == beginCommandCharacter) {
skipEndCommand++;
}
commandLocation++;
}
if (commandLocation < endOfLine) {
[scanner mgs_setScanLocation:commandLocation + searchSyntaxLength];
} else {
[scanner mgs_setScanLocation:endOfLine];
}
}
[self setColour:commandsColour range:NSMakeRange(beginning + rangeLocation, [scanner scanLocation] - beginning)];
}
}
//
// Instructions
//
if (![beginInstruction isEqualToString:@""] && [[SMLDefaults valueForKey:@"ColourInstructions"] boolValue] == YES) {
// It takes too long to scan the whole document if it's large, so for instructions, first multi-line comment and second multi-line comment search backwards and begin at the start of the first beginInstruction etc. that it finds from the present position and, below, break the loop if it has passed the scanned range (i.e. after the end instruction)
beginLocationInMultiLine = [completeString rangeOfString:beginInstruction options:NSBackwardsSearch range:NSMakeRange(0, rangeLocation)].location;
endLocationInMultiLine = [completeString rangeOfString:endInstruction options:NSBackwardsSearch range:NSMakeRange(0, rangeLocation)].location;
if (beginLocationInMultiLine == NSNotFound || (endLocationInMultiLine != NSNotFound && beginLocationInMultiLine < endLocationInMultiLine)) {
beginLocationInMultiLine = rangeLocation;
}
searchSyntaxLength = [endInstruction length];
while (![completeDocumentScanner isAtEnd]) {
searchRange = NSMakeRange(beginLocationInMultiLine, range.length);
if (NSMaxRange(searchRange) > completeStringLength) {
searchRange = NSMakeRange(beginLocationInMultiLine, completeStringLength - beginLocationInMultiLine);
}
beginning = [completeString rangeOfString:beginInstruction options:NSLiteralSearch range:searchRange].location;
if (beginning == NSNotFound) {
break;
}
[completeDocumentScanner mgs_setScanLocation:beginning];
if (![completeDocumentScanner scanUpToString:endInstruction intoString:nil] || [completeDocumentScanner scanLocation] >= completeStringLength) {
if (shouldOnlyColourTillTheEndOfLine) {
[completeDocumentScanner mgs_setScanLocation:NSMaxRange([completeString lineRangeForRange:NSMakeRange(beginning, 0)])];
} else {
[completeDocumentScanner mgs_setScanLocation:completeStringLength];
}
} else {
if ([completeDocumentScanner scanLocation] + searchSyntaxLength <= completeStringLength) {
[completeDocumentScanner mgs_setScanLocation:[completeDocumentScanner scanLocation] + searchSyntaxLength];
}
}
[self setColour:instructionsColour range:NSMakeRange(beginning, [completeDocumentScanner scanLocation] - beginning)];
if ([completeDocumentScanner scanLocation] > maxRange) {
break;
}
beginLocationInMultiLine = [completeDocumentScanner scanLocation];
}
}
//
// Keywords
//
if ([keywords count] != 0 && [[SMLDefaults valueForKey:@"ColourKeywords"] boolValue] == YES) {
[scanner mgs_setScanLocation:0];
while (![scanner isAtEnd]) {
[scanner scanUpToCharactersFromSet:keywordStartCharacterSet intoString:nil];
beginning = [scanner scanLocation];
if ((beginning + 1) < searchStringLength) {
[scanner mgs_setScanLocation:(beginning + 1)];
}
[scanner scanUpToCharactersFromSet:keywordEndCharacterSet intoString:nil];
end = [scanner scanLocation];
if (end > searchStringLength || beginning == end) {
break;
}
NSString *keywordTestString = nil;
if (!keywordsCaseSensitive) {
keywordTestString = [[completeString substringWithRange:NSMakeRange(beginning + rangeLocation, end - beginning)] lowercaseString];
} else {
keywordTestString = [completeString substringWithRange:NSMakeRange(beginning + rangeLocation, end - beginning)];
}
if ([keywords containsObject:keywordTestString]) {
if (!recolourKeywordIfAlreadyColoured) {
if ([[firstLayoutManager temporaryAttributesAtCharacterIndex:beginning + rangeLocation effectiveRange:NULL] isEqualToDictionary:commandsColour]) {
continue;
}
}
[self setColour:keywordsColour range:NSMakeRange(beginning + rangeLocation, [scanner scanLocation] - beginning)];
}
}
}
//
// Autocomplete
//
if ([autocompleteWords count] != 0 && [[SMLDefaults valueForKey:@"ColourAutocomplete"] boolValue] == YES) {
[scanner mgs_setScanLocation:0];
while (![scanner isAtEnd]) {
[scanner scanUpToCharactersFromSet:keywordStartCharacterSet intoString:nil];
beginning = [scanner scanLocation];
if ((beginning + 1) < searchStringLength) {
[scanner mgs_setScanLocation:(beginning + 1)];
}
[scanner scanUpToCharactersFromSet:keywordEndCharacterSet intoString:nil];
end = [scanner scanLocation];
if (end > searchStringLength || beginning == end) {
break;
}
NSString *autocompleteTestString = nil;
if (!keywordsCaseSensitive) {
autocompleteTestString = [[completeString substringWithRange:NSMakeRange(beginning + rangeLocation, end - beginning)] lowercaseString];
} else {
autocompleteTestString = [completeString substringWithRange:NSMakeRange(beginning + rangeLocation, end - beginning)];
}
if ([autocompleteWords containsObject:autocompleteTestString]) {
if (!recolourKeywordIfAlreadyColoured) {
if ([[firstLayoutManager temporaryAttributesAtCharacterIndex:beginning + rangeLocation effectiveRange:NULL] isEqualToDictionary:commandsColour]) {
continue;
}
}
[self setColour:autocompleteWordsColour range:NSMakeRange(beginning + rangeLocation, [scanner scanLocation] - beginning)];
}
}
}
//
// Variables
//
if (beginVariable != nil && [[SMLDefaults valueForKey:@"ColourVariables"] boolValue] == YES) {
[scanner mgs_setScanLocation:0];
while (![scanner isAtEnd]) {
[scanner scanUpToCharactersFromSet:beginVariable intoString:nil];
beginning = [scanner scanLocation];
if (beginning + 1 < searchStringLength) {
if ([firstSingleLineComment isEqualToString:@"%"] && [searchString characterAtIndex:beginning + 1] == '%') { // To avoid a problem in LaTex with \%
if ([scanner scanLocation] < searchStringLength) {
[scanner mgs_setScanLocation:beginning + 1];
}
continue;
}
}
endOfLine = NSMaxRange([searchString lineRangeForRange:NSMakeRange(beginning, 0)]);
if (![scanner scanUpToCharactersFromSet:endVariable intoString:nil] || [scanner scanLocation] >= endOfLine) {
[scanner mgs_setScanLocation:endOfLine];
length = [scanner scanLocation] - beginning;
} else {
length = [scanner scanLocation] - beginning;
if ([scanner scanLocation] < searchStringLength) {
[scanner mgs_setScanLocation:[scanner scanLocation] + 1];
}
}
[self setColour:variablesColour range:NSMakeRange(beginning + rangeLocation, length)];
}
}
//
// Second string, first pass
//
if (![secondString isEqualToString:@""] && [[SMLDefaults valueForKey:@"ColourStrings"] boolValue] == YES) {
@try {
secondStringMatcher = [[ICUMatcher alloc] initWithPattern:secondStringPattern overString:searchString];
}
@catch (NSException *exception) {
return;
}
while ([secondStringMatcher findNext]) {
foundRange = [secondStringMatcher rangeOfMatch];
[self setColour:stringsColour range:NSMakeRange(foundRange.location + rangeLocation + 1, foundRange.length - 1)];
}
}
//
// First string
//
if (![firstString isEqualToString:@""] && [[SMLDefaults valueForKey:@"ColourStrings"] boolValue] == YES) {
@try {
firstStringMatcher = [[ICUMatcher alloc] initWithPattern:firstStringPattern overString:searchString];
}
@catch (NSException *exception) {
return;
}
while ([firstStringMatcher findNext]) {
foundRange = [firstStringMatcher rangeOfMatch];
if ([[firstLayoutManager temporaryAttributesAtCharacterIndex:foundRange.location + rangeLocation effectiveRange:NULL] isEqualToDictionary:stringsColour]) {
continue;
}
[self setColour:stringsColour range:NSMakeRange(foundRange.location + rangeLocation + 1, foundRange.length - 1)];
}
}
//
// Attributes
//
if ([[SMLDefaults valueForKey:@"ColourAttributes"] boolValue] == YES) {
[scanner mgs_setScanLocation:0];
while (![scanner isAtEnd]) {
[scanner scanUpToString:@" " intoString:nil];
beginning = [scanner scanLocation];
if (beginning + 1 < searchStringLength) {
[scanner mgs_setScanLocation:beginning + 1];
} else {
break;
}
if (![[firstLayoutManager temporaryAttributesAtCharacterIndex:(beginning + rangeLocation) effectiveRange:NULL] isEqualToDictionary:commandsColour]) {
continue;
}
[scanner scanCharactersFromSet:attributesCharacterSet intoString:nil];
end = [scanner scanLocation];
if (end + 1 < searchStringLength) {
[scanner mgs_setScanLocation:[scanner scanLocation] + 1];
}
if ([completeString characterAtIndex:end + rangeLocation] == '=') {
[self setColour:attributesColour range:NSMakeRange(beginning + rangeLocation, end - beginning)];
}
}
}
//
// Colour single-line comments
//
for (NSString *singleLineComment in singleLineComments) {
if (![singleLineComment isEqualToString:@""] && [[SMLDefaults valueForKey:@"ColourComments"] boolValue] == YES) {
// reset scanner
[scanner mgs_setScanLocation:0];
searchSyntaxLength = [singleLineComment length];
// scan
while (![scanner isAtEnd]) {
// scan for comment
[scanner scanUpToString:singleLineComment intoString:nil];
beginning = [scanner scanLocation];
// common case handling
if ([singleLineComment isEqualToString:@"//"]) {
if (beginning > 0 && [searchString characterAtIndex:beginning - 1] == ':') {
[scanner mgs_setScanLocation:beginning + 1];
continue; // To avoid http:// ftp:// file:// etc.
}
} else if ([singleLineComment isEqualToString:@"#"]) {
if (searchStringLength > 1) {
rangeOfLine = [searchString lineRangeForRange:NSMakeRange(beginning, 0)];
if ([searchString rangeOfString:@"#!" options:NSLiteralSearch range:rangeOfLine].location != NSNotFound) {
[scanner mgs_setScanLocation:NSMaxRange(rangeOfLine)];
continue; // Don't treat the line as a comment if it begins with #!
} else if (beginning > 0 && [searchString characterAtIndex:beginning - 1] == '$') {
[scanner mgs_setScanLocation:beginning + 1];
continue; // To avoid $#
} else if (beginning > 0 && [searchString characterAtIndex:beginning - 1] == '&') {
[scanner mgs_setScanLocation:beginning + 1];
continue; // To avoid &#
}
}
} else if ([singleLineComment isEqualToString:@"%"]) {
if (searchStringLength > 1) {
if (beginning > 0 && [searchString characterAtIndex:beginning - 1] == '\\') {
[scanner mgs_setScanLocation:beginning + 1];
continue; // To avoid \% in LaTex
}
}
}
// If the comment is within an already coloured string then disregard it
if (beginning + rangeLocation + searchSyntaxLength < completeStringLength) {
if ([[firstLayoutManager temporaryAttributesAtCharacterIndex:beginning + rangeLocation effectiveRange:NULL] isEqualToDictionary:stringsColour]) {
[scanner mgs_setScanLocation:beginning + 1];
continue;
}
}
// this is a single line comment so we can scan to the end of the line
endOfLine = NSMaxRange([searchString lineRangeForRange:NSMakeRange(beginning, 0)]);
[scanner mgs_setScanLocation:endOfLine];
// colour the comment
[self setColour:commentsColour range:NSMakeRange(beginning + rangeLocation, [scanner scanLocation] - beginning)];
}
}
}
//
// Multi-line comments
//
for (NSArray *multiLineComment in multiLineComments) {
NSString *beginMultiLineComment = [multiLineComment objectAtIndex:0];