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/** R.app : a Cocoa front end to: "R A Computer Language for Statistical Data Analysis"** R.app Copyright notes:* Copyright (C) 2004-5 The R Foundation* written by Stefano M. Iacus and Simon Urbanek*** R Copyright notes:* Copyright (C) 1995-1996 Robert Gentleman and Ross Ihaka* Copyright (C) 1998-2001 The R Development Core Team* Copyright (C) 2002-2004 The R Foundation** This program is free software; you can redistribute it and/or modify* it under the terms of the GNU General Public License as published by* the Free Software Foundation; either version 2 of the License, or* (at your option) any later version.** This program is distributed in the hope that it will be useful,* but WITHOUT ANY WARRANTY; without even the implied warranty of* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the* GNU General Public License for more details.** A copy of the GNU General Public License is available via WWW at* http://www.gnu.org/copyleft/gpl.html. You can also obtain it by* writing to the Free Software Foundation, Inc., 59 Temple Place,* Suite 330, Boston, MA 02111-1307 USA.** Created by Simon Urbanek on 1/11/05.*/#import "RGUI.h"#import "RDocumentWinCtrl.h"#import "PreferenceKeys.h"#import "RController.h"#import "RDocumentController.h"#import "REngine/REngine.h"#import "REditorTextStorage.h"#import "RRulerView.h"#import "REditorToolbar.h"#import "Tools/FileCompletion.h"#import "Tools/CodeCompletion.h"BOOL defaultsInitialized = NO;NSColor *shColorNormal;NSColor *shColorString;NSColor *shColorNumber;NSColor *shColorKeyword;NSColor *shColorComment;NSColor *shColorIdentifier;NSArray *keywordList=nil;// note: those must match tags in the NIB!#define hsTypeExact 1#define hsTypeApprox 2@interface RDocumentWinCtrl (Private)BOOL dirtyHL; // YES = some part of the HL wasn't re-doneint dirtyHead; // position from which the highlighting needs to be re-doneint dirtyTail; // last updated position beyond which the HL is undefined@endstatic int dirtyLimit = 600; // max. length of highlighting extension before giving up in favor of dirty HL mode@implementation RDocumentWinCtrl+ (void) setDefaultSyntaxHighlightingColors{NSColor *c=[Preferences unarchivedObjectForKey:normalSyntaxColorKey withDefault:nil];if (c) shColorNormal = c;else shColorNormal=[NSColor colorWithDeviceRed:0.025 green:0.085 blue:0.600 alpha:1.0];[shColorNormal retain];c=[Preferences unarchivedObjectForKey:stringSyntaxColorKey withDefault:nil];if (c) shColorString = c;else shColorString=[NSColor colorWithDeviceRed:0.690 green:0.075 blue:0.000 alpha:1.0];[shColorString retain];c=[Preferences unarchivedObjectForKey:numberSyntaxColorKey withDefault:nil];if (c) shColorNumber = c;else shColorNumber=[NSColor colorWithDeviceRed:0.020 green:0.320 blue:0.095 alpha:1.0];[shColorNumber retain];c=[Preferences unarchivedObjectForKey:keywordSyntaxColorKey withDefault:nil];if (c) shColorKeyword = c;else shColorKeyword=[NSColor colorWithDeviceRed:0.765 green:0.535 blue:0.035 alpha:1.0];[shColorKeyword retain];c=[Preferences unarchivedObjectForKey:commentSyntaxColorKey withDefault:nil];if (c) shColorComment = c;else shColorComment=[NSColor colorWithDeviceRed:0.312 green:0.309 blue:0.309 alpha:1.0];[shColorComment retain];c=[Preferences unarchivedObjectForKey:identifierSyntaxColorKey withDefault:nil];if (c) shColorIdentifier = c;else shColorIdentifier=[NSColor colorWithDeviceRed:0.0 green:0.0 blue:0.0 alpha:1.0];[shColorIdentifier retain];// NSLog(@"shColorIdentifier %f %f %f %f", [c redComponent], [c greenComponent], [c blueComponent], [c alphaComponent]);keywordList = [[NSArray alloc] initWithObjects:@"for", @"if", @"else", @"function", @"TRUE", @"FALSE", @"while",@"do", @"NULL", @"Inf", @"NA", @"NaN", @"in", nil];}//- (id)init // NOTE: init is *not* used! put any initialization in windowDidLoad- (void)dealloc {SLog(@"RDocumentWinCtrl.dealloc<%@>", self);if (highlightColorAttr) [highlightColorAttr release];if (helpTempFile) [[NSFileManager defaultManager] removeFileAtPath:helpTempFile handler:nil];[[NSNotificationCenter defaultCenter] removeObserver:self];[[Preferences sharedPreferences] removeDependent:self];[super dealloc];}- (void) replaceContentsWithRtf: (NSData*) rtfContents{[textView replaceCharactersInRange:NSMakeRange(0, [[textView textStorage] length])withRTF:rtfContents];[self updateSyntaxHighlightingForRange:NSMakeRange(0, [[textView textStorage] length])];}- (void) replaceContentsWithString: (NSString*) strContents{[textView replaceCharactersInRange: NSMakeRange(0, [[textView textStorage] length]) withString:strContents];[self updateSyntaxHighlightingForRange:NSMakeRange(0, [[textView textStorage] length])];}- (NSData*) contentsAsRtf{return [textView RTFFromRange:NSMakeRange(0, [[textView string] length])];}- (NSString*) contentsAsString{return [textView string];}- (NSTextView *) textView {return textView;}- (void) setPlain: (BOOL) plain{plainFile=plain;if (plain && useHighlighting && textView)[textView setTextColor:[NSColor blackColor] range:NSMakeRange(0,[[textView textStorage] length])];else if (!plain && useHighlighting && textView)[self setHighlighting:YES];}- (BOOL) plain{return plainFile;}- (id) initWithWindowNibName:(NSString*) nib{self = [super initWithWindowNibName:nib];SLog(@"RDocumentWinCtrl.initWithNibName:%@", nib);if (self) {plainFile=NO;hsType=1;currentHighlight=-1;updating=NO;helpTempFile=nil;execNewlineFlag=NO;dirtyHL = NO;}return self;}// we don't need this one, because the default implementation automatically calls the one w/o owner// - (id) initWithWindowNibName:(NSString*) nib owner: (id) owner- (void) windowDidLoad{SLog(@"RDocumentWinCtrl(%@).windowDidLoad", self);if (!defaultsInitialized) {[RDocumentWinCtrl setDefaultSyntaxHighlightingColors];defaultsInitialized=YES;}// For now replaced selectedTextBackgroundColor by redColorhighlightColorAttr = [[NSDictionary alloc] initWithObjectsAndKeys:[NSColor redColor], NSBackgroundColorAttributeName, nil];BOOL showLineNos = [Preferences flagForKey:showLineNumbersKey withDefault: NO];BOOL lineWrappingEnabled = [Preferences flagForKey:enableLineWrappingKey withDefault: YES];if (showLineNos) {SLog(@" - line numbers requested");// This should probably get loaded from NSUserDefaults.NSFont *font = [NSFont fontWithName:@"Monaco" size: 10];NSSize layoutSize = [textView maxSize];layoutSize.width = layoutSize.height;if (!lineWrappingEnabled) {// Make sure that we don't wrap lines.[scrollView setHasHorizontalScroller: YES];[textView setHorizontallyResizable: YES];[textView setMaxSize: layoutSize];[[textView textContainer] setWidthTracksTextView: NO];[[textView textContainer] setHeightTracksTextView: NO];[[textView textContainer] setContainerSize: layoutSize];} else {[scrollView setHasHorizontalScroller: NO];[textView setHorizontallyResizable: YES];[textView setMaxSize: layoutSize];[[textView textContainer] setWidthTracksTextView: YES];[[textView textContainer] setHeightTracksTextView: NO];[[textView textContainer] setContainerSize: layoutSize];}// Create and install our line numbersif (theRulerView) [theRulerView release];theRulerView = [[RRulerView alloc] initWithScrollView: scrollView orientation: NSVerticalRuler showLineNumbers: showLineNos textView:textView];[scrollView setHasHorizontalRuler: NO];[scrollView setHasVerticalRuler: YES];[scrollView setVerticalRulerView: theRulerView];[scrollView setRulersVisible: YES];[scrollView setLineScroll: [font pointSize]];// Add a small pad to the textViewsfloat lineFragmentPadding;lineFragmentPadding = [[Preferences stringForKey:lineFragmentPaddingWidthKey withDefault: @"6.0"] floatValue];[[textView textContainer] setLineFragmentPadding: lineFragmentPadding];[textView setUsesRuler: YES];[textView setFont: font];}SLog(@" - setup views");[scrollView setDocumentView:textView];[textView setDelegate: self];// instead of building the whole text storage network, we just replace the text storage - but ti's not trivial since ts is actually the root of the networkSLog(@" - replace back-end with REditorTextStorage");NSLayoutManager *lm = [[textView layoutManager] retain];NSTextStorage *origTS = [[textView textStorage] retain];REditorTextStorage * textStorage = [[REditorTextStorage alloc] init];[origTS removeLayoutManager:lm];[textStorage addLayoutManager:lm];[lm release];[origTS release];SLog(@" - setup window, preferences and widgets");[[self window] setOpaque:NO]; // Needed so we can see through it when we have clear stuff on top[textView setDrawsBackground:NO];[[textView enclosingScrollView] setDrawsBackground:NO];[textView setFont:[[RController sharedController] currentFont]];[textView setContinuousSpellCheckingEnabled:NO]; // by default no continuous spell checking[textView setAllowsUndo: YES];SLog(@" - load document contents into textView");[(RDocument*)[self document] loadInitialContents];[textView setEditable: [[self document] editable]];[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(textDidChange:)name:NSTextDidChangeNotificationobject: textView];[[textView textStorage] setDelegate:self];[self updatePreferences];[[Preferences sharedPreferences] addDependent:self];// use textView's undoManager - this is just paranoia to be honest[[self document] setUndoManager:[textView undoManager]];[[self document] setHasUndoManager:YES];SLog(@" - setup editor toolbar");editorToolbar = [[REditorToolbar alloc] initWithEditor:self];SLog(@" - scan document for functions");[self functionRescan];SLog(@" - windowDidLoad is done");}- (void) setUndoBreakpoint{if ([[textView undoManager] groupingLevel]>0) {[[textView undoManager] endUndoGrouping];[[textView undoManager] beginUndoGrouping];}}- (void)windowDidBecomeKey:(NSNotification *)aNotification {[theRulerView updateView];}- (NSUndoManager*) windowWillReturnUndoManager: (NSWindow*) sender{return [[self document] undoManager];}- (void) setStatusLineText: (NSString*) text{[statusLine setStringValue:text?text:@""];}- (BOOL) hintForFunction: (NSString*) fn{BOOL success = NO;if (preventReentrance && insideR>0) {[self setStatusLineText:NLS(@"(arguments lookup is disabled while R is busy)")];return NO;}if (![[REngine mainEngine] beginProtected]) {[self setStatusLineText:NLS(@"(arguments lookup is disabled while R is busy)")];return NO;}RSEXP *x = [[REngine mainEngine] evaluateString:[NSString stringWithFormat:@"try(gsub('\\\\s+',' ',paste(capture.output(print(args(%@))),collapse='')),silent=TRUE)", fn]];if (x) {NSString *res = [x string];if (res && [res length]>10 && [res hasPrefix:@"function"]) {if ([res hasSuffix:@" NULL"]) res=[res substringToIndex:[res length]-5];res = [fn stringByAppendingString:[res substringFromIndex:9]];success = YES;[self setStatusLineText:res];}[x release];}[[REngine mainEngine] endProtected];return success;}- (NSString*) statusLineText{return [statusLine stringValue];}- (void) functionReset{SLog(@"RDocumentWinCtrl.functionReset");if (fnListBox) {NSMenuItem *fmi = [[NSMenuItem alloc] initWithTitle:@"<functions>" action:nil keyEquivalent:@""];[fmi setTag:-1];[fnListBox removeAllItems];[[fnListBox menu] addItem:fmi];}SLog(@" - reset done");}- (void) functionAdd: (NSString*) fn atPosition: (int) pos{if (fnListBox) {if ([[[fnListBox menu] itemAtIndex:0] tag]==-1)[fnListBox removeAllItems];NSMenuItem *mi = [fnListBox itemWithTitle:fn];if (!mi) {mi = [[NSMenuItem alloc] initWithTitle:fn action:@selector(goFunction:) keyEquivalent:@""];[mi setTag: pos];[[fnListBox menu] addItem:mi];} else {[mi setTag:pos];}}}- (void) functionGo: (id) sender{NSString *s = [[textView textStorage] string];NSMenuItem *mi = (NSMenuItem*) sender;int pos = [mi tag];if (pos>=0 && pos<[s length]) {NSRange fr = NSMakeRange(pos,0);[textView setSelectedRange:fr];[textView scrollRangeToVisible:fr];}}- (void) functionRescan{NSTextStorage *ts = [textView textStorage];NSString *s = [ts string];int oix = 0;int pim = 0;int sit = 0;int fnf = 0;NSMenu *fnm = [fnListBox menu];NSRange sr = [textView selectedRange];SLog(@"RDoumentWinCtrl.functionRescan");while (1) {NSRange r = [s rangeOfString:@"function" options:0 range:NSMakeRange(oix,[s length]-oix)];if (r.length<8) break;oix=r.location+r.length;{int li = r.location-1;SLog(@" - potential function at %d", li);unichar fc;while (li>0 && ((fc=[s characterAtIndex:li])==' ' || fc=='\t' || fc=='\r' || fc=='\n')) li--;if (li>0) {fc=[s characterAtIndex:li];if (fc=='=' || (fc=='-' && [s characterAtIndex:--li]=='<')) {int lci;li--;SLog(@" - matched =/<- at %d", li);while (li>0 && ((fc=[s characterAtIndex:li])==' ' || fc=='\t' || fc=='\r' || fc=='\n')) li--;lci=li;while (li>=0 && (((fc=[s characterAtIndex:li])>='0' && fc<='9')||(fc>='a' && fc<='z')||(fc>='A' && fc<='Z')||fc=='.'||fc=='_')) li--;if (lci!=li) {NSString *fn = [s substringWithRange:NSMakeRange(li+1,lci-li)];int fp = li+1;NSMenuItem *mi = nil;SLog(@" - found identifier %d:%d \"%@\"", li+1, lci-li, fn);fnf++;if (fp<sr.location) sit=pim;if (pim<[fnm numberOfItems]) {mi = (NSMenuItem*) [fnm itemAtIndex:pim];if ([[mi title] isEqual:fn]) {SLog(@" - replacing function at %d (title match)", pim);[mi setTag:fp];pim++;} else if ([mi tag]==fp) {SLog(@" - replacing function at %d (position match)", pim);if (![[mi title] isEqual:fn])[mi setTitle:fn];pim++;} else {while (mi && [mi tag]<fp) {[fnm removeItemAtIndex:pim];mi=nil;if (pim<[fnm numberOfItems])mi=(NSMenuItem*) [fnm itemAtIndex:pim];}if (mi) {SLog(@" - inserting at %d", pim);mi = [[NSMenuItem alloc] initWithTitle:fn action:@selector(functionGo:) keyEquivalent:@""];[mi setTag:fp];[mi setTarget:self];[fnm insertItem:mi atIndex:pim];pim++;}}}if (!mi && pim>=[fnm numberOfItems]) {SLog(@" - appending");mi = [[NSMenuItem alloc] initWithTitle:fn action:@selector(functionGo:) keyEquivalent:@""];[mi setTag:fp];[mi setTarget:self];[fnm addItem:[mi autorelease]];pim++;}}}}}}while (pim<[fnm numberOfItems])[fnm removeItemAtIndex:pim];if (fnf==0)[self functionReset];else[fnListBox selectItemAtIndex:sit];SLog(@" - rescan finished (%d functions)", fnf);}- (void) updatePreferences {SLog(@"RDocumentWinCtrl.updatePreferences");NSColor *c = [Preferences unarchivedObjectForKey: backgColorKey withDefault: nil];if (c && c!=[[self window] backgroundColor]) {[[self window] setBackgroundColor:c];// [[self window] display];}c=[Preferences unarchivedObjectForKey:normalSyntaxColorKey withDefault:nil];if (c) { shColorNormal = c; [textView setInsertionPointColor:c]; }c=[Preferences unarchivedObjectForKey:stringSyntaxColorKey withDefault:nil];if (c) shColorString = c;c=[Preferences unarchivedObjectForKey:numberSyntaxColorKey withDefault:nil];if (c) shColorNumber = c;c=[Preferences unarchivedObjectForKey:keywordSyntaxColorKey withDefault:nil];if (c) shColorKeyword = c;c=[Preferences unarchivedObjectForKey:commentSyntaxColorKey withDefault:nil];if (c) shColorComment = c;c=[Preferences unarchivedObjectForKey:identifierSyntaxColorKey withDefault:nil];if (c) shColorIdentifier = c;argsHints=[Preferences flagForKey:prefShowArgsHints withDefault:YES];[self setHighlighting:[Preferences flagForKey:showSyntaxColoringKey withDefault: YES]];showMatchingBraces = [Preferences flagForKey:showBraceHighlightingKey withDefault: YES];braceHighlightInterval = [[Preferences stringForKey:highlightIntervalKey withDefault: @"0.2"] doubleValue];[self updateSyntaxHighlightingForRange:NSMakeRange(0,[[textView textStorage] length])];[textView setNeedsDisplay:YES];SLog(@" - preferences updated");}- (IBAction)printDocument:(id)sender{NSPrintInfo *printInfo;NSPrintInfo *sharedInfo;NSPrintOperation *printOp;NSMutableDictionary *printInfoDict;NSMutableDictionary *sharedDict;sharedInfo = [NSPrintInfo sharedPrintInfo];sharedDict = [sharedInfo dictionary];printInfoDict = [NSMutableDictionary dictionaryWithDictionary:sharedDict];printInfo = [[NSPrintInfo alloc] initWithDictionary: printInfoDict];[printInfo setHorizontalPagination: NSFitPagination];[printInfo setVerticalPagination: NSAutoPagination];[printInfo setVerticallyCentered:NO];[textView setBackgroundColor:[NSColor whiteColor]];printOp = [NSPrintOperation printOperationWithView:textViewprintInfo:printInfo];[printOp setShowPanels:YES];[printOp runOperation];[self updatePreferences];}- (IBAction)goToLine:(id)sender{[NSApp beginSheet: goToLineSheet modalForWindow: [self window] modalDelegate: goToLineSheet didEndSelector: @selector(orderOut:) contextInfo: nil];}- (IBAction)goToLineCloseSheet:(id)sender{if ([((NSButton*) sender) tag] == 1) { // OKNSString *s = [[textView textStorage] string];int l = [goToLineField intValue];// I know of no simple way to determine line #s, so let's just count themint i=0, cl=1, tl = [s length];if (l<1) l=1;if (tl>0) {if (cl!=l) while (i<tl) {if ([s characterAtIndex:i]=='\n') { // we could use indexOf, but ...cl++;if (cl==l) break;}i++;};if (l>1) i++; // get past the detected newlineif (i>=tl) i=tl-1; // make sure the range is valid[textView setSelectedRange:NSMakeRange(i,0)];}}[NSApp endSheet:goToLineSheet];}- (void) setHighlighting: (BOOL) use{useHighlighting=use;if (textView) {if (use)[self updateSyntaxHighlightingForRange:NSMakeRange(0,[[textView textStorage] length])];else[textView setTextColor:[NSColor blackColor] range:NSMakeRange(0,[[textView textStorage] length])];}}/* This is needed to force the NSDocument to know when edited windows are dirty */- (void) textDidChange: (NSNotification *)notification{[[self document] updateChangeCount:NSChangeDone];}/* this method is called after editing took place - we use it for updating the syntax highlighting */- (void)updateSyntaxHighlightingForRange: (NSRange) range{BOOL dirtyRun = NO;NSTextStorage *ts = [textView textStorage];NSString *s = [ts string];int i = range.location; // index in the stringint bb = i; // index of the beginning of the currently detected segmentint last = i+range.length; // proposed stop - index behind the last character (must be <=hardStop)int hardStop = last; // hard-stop; it is ok to look beyond last when necessary, but not ok to look beyond hardStopBOOL foundItem=NO;SLog(@"RDocumentWinCtrl(%@).updateSyntaxHL: %d:%d (%d/%d) [dirty=%s]", self, range.location, range.length, (int)useHighlighting, (int)plainFile, dirtyHL?"yes":"no");if (!keywordList) [RDocumentWinCtrl setDefaultSyntaxHighlightingColors];if ([self document] == nil) {SLog(@" - no document, skipping.");return;}if (range.length<1 || updating || !useHighlighting || plainFile) {SLog(@" - no need to update, skipping.");return;}updating=YES;if (dirtyHL) {if (i>dirtyHead) {SLog(@" - dirtyHL is active, moving HL start from %d to %d", i, dirtyHead);bb = i = dirtyHead;hardStop = last = dirtyTail;}if (dirtyTail > last) {SLog(@" - dirtyHL is active, extending HL from %d to %d", last, dirtyTail);hardStop = last = dirtyTail;}}NSDictionary *trailAttr = nil;int trailPos = 0;if (last>0 && last<[s length]) {int sl = [s length];unichar c;trailPos=last+1;while (trailPos<sl && ((c = [s characterAtIndex:trailPos])==' ' || c=='\n' || c=='\r' || c=='\t')) trailPos++;if (trailPos>=[s length]) {hardStop = last = [s length]; trailPos=0;} else {NSRange efr;last = trailPos--;hardStop = [s length]; // feel free to go up to the end if necessary (in fact max(last+64,[s length]) should be sufficient, but it shouldn't matter)trailAttr = [ts attributesAtIndex:trailPos effectiveRange:&efr];//SLog(@"trailDict: %@, last was %d and is now %d", trailAttr, last, trailPos);}}[ts beginEditing];reHilite:while (i < last) {foundItem=NO;unichar c = [s characterAtIndex:i];if (c=='\'' || c=='"') {unichar lc=c;int ss=i;NSRange fr;if (i-bb>0) {fr=NSMakeRange(bb,i-bb);[ts addAttribute:@"shType" value:@"none" range:fr];[ts addAttribute:@"NSColor" value:shColorNormal range:fr];}i++;while (i<last && (c=[s characterAtIndex:i])!=lc) {if (c=='\\') { i++; if (i>=last) break; }i++;}fr=NSMakeRange(ss,i-ss+((i==last)?0:1));[ts addAttribute:@"shType" value:@"string" range:fr];[ts addAttribute:@"NSColor" value:shColorString range:fr];bb=i; if (i==last) break;i++; bb=i; if (i==last) break;c=[s characterAtIndex:i];foundItem=YES;}if (c>='0' && c<='9') {int ss=i;NSRange fr;if (i-bb>0) {fr=NSMakeRange(bb,i-bb);[ts addAttribute:@"shType" value:@"none" range:fr];[ts addAttribute:@"NSColor" value:shColorNormal range:fr];}i++;while (i<last && ((c=[s characterAtIndex:i])=='.' || (c>='0' && c<='9'))) i++;fr=NSMakeRange(ss,i-ss);[ts addAttribute:@"shType" value:@"number" range:fr];[ts addAttribute:@"NSColor" value:shColorNumber range:fr];bb=i;if (i==last) break;c=[s characterAtIndex:i];foundItem=YES;}if ((c>='a' && c<='z') || (c>='A' && c<='Z') || c=='.') {int ss=i;NSRange fr;if (i-bb>0) {fr=NSMakeRange(bb,i-bb);[ts addAttribute:@"shType" value:@"none" range:fr];[ts addAttribute:@"NSColor" value:shColorNormal range:fr];}i++;// unlike all others id/keyword use hardStop, because keywords cannot be determined until the entire string is knownwhile (i<hardStop && ((c=[s characterAtIndex:i])=='_' || c=='.' || (c>='a' && c<='z') || (c>='A' && c<='Z') || (c>='0' && c<='9'))) i++;fr=NSMakeRange(ss,i-ss);{NSString *word = [s substringWithRange:fr];if (word && keywordList && [keywordList containsObject:word]) {[ts addAttribute:@"shType" value:@"keyword" range:fr];[ts addAttribute:@"NSColor" value:shColorKeyword range:fr];} else {[ts addAttribute:@"shType" value:@"id" range:fr];[ts addAttribute:@"NSColor" value:shColorIdentifier range:fr];}}bb=i;if (i>=last) break;c=[s characterAtIndex:i];foundItem=YES;}if (c=='#') {int ss=i;NSRange fr;if (i-bb>0) {fr=NSMakeRange(bb,i-bb);[ts addAttribute:@"shType" value:@"none" range:fr];[ts addAttribute:@"NSColor" value:shColorNormal range:fr];}i++;while (i<last && ((c=[s characterAtIndex:i])!='\n' && c!='\r')) i++;fr=NSMakeRange(ss,i-ss);[ts addAttribute:@"shType" value:@"comment" range:fr];[ts addAttribute:@"NSColor" value:shColorComment range:fr];bb=i;if (i==last) break;c=[s characterAtIndex:i];foundItem=YES;}if (!foundItem) i++;}if (bb<last && i-bb>0) {NSRange fr=NSMakeRange(bb,i-bb);[ts addAttribute:@"shType" value:@"none" range:fr];[ts addAttribute:@"NSColor" value:shColorNormal range:fr];}if (trailAttr) { // it's partial update and there is trailing contents - let's check whether we need to go beyond the required scope (but let it go if we just had a dirty run)NSRange efr;NSDictionary *newAttr = [ts attributesAtIndex:trailPos effectiveRange:&efr];NSString *oldA = (NSString*) [trailAttr objectForKey:@"shType"];NSString *newA = (NSString*) [newAttr objectForKey:@"shType"];BOOL haveMismatch = oldA && newA && ![oldA isEqual:newA];if (!dirtyRun && haveMismatch) { // trailing contents must be changed, tooSLog(@" - syntaxHL: old [%@] new [%@] at %d - need to re-process to the end of the file", oldA, newA, trailPos);trailAttr=nil;last=[s length];bb = i = range.location; // the HL code doesn't support continuation out of the loop, because of the inner loops, so we just re-do it all ...if (last - bb > dirtyLimit) {SLog(@" - syntaxHL: range to re-do is too big (%d chars), enabling dirty mode", last - bb);dirtyHL = YES;dirtyHead = bb;dirtyTail = bb + dirtyLimit;dirtyRun = YES;last = dirtyTail;}goto reHilite;}if (!haveMismatch && dirtyHL) { // we can disable dirty HL, because the marks matchSLog(@" - disabling dirty HL, because marks match at the tail");dirtyHL=NO;}}SLog(@" - sh done, rescan and finish");[self functionRescan];[ts endEditing];updating=NO;SLog(@" - finished syntax hilite, whew ..");}- (void) highlightBracesWithShift: (int) shift andWarn: (BOOL) warn{NSString *completeString = [[textView textStorage] string];unsigned int completeStringLength = [completeString length];if (completeStringLength < 2) return;NSRange selRange = [textView selectedRange];unsigned int cursorLocation = selRange.location;cursorLocation+=shift; // add any shift as cursor movement guys need itif (cursorLocation<0 || cursorLocation>=completeStringLength) return;unichar characterToCheck;unichar openingChar = 0;characterToCheck = [completeString characterAtIndex:cursorLocation];int skipMatchingBrace = 0;[(REditorTextStorage*)[textView textStorage] resetHighlights];if (characterToCheck == ')') openingChar='(';else if (characterToCheck == ']') openingChar='[';else if (characterToCheck == '}') openingChar='{';// well, this is rather simple so far, because it ignores cross-quoting, but for a first shot it's not too bad ;)if (openingChar) {while (cursorLocation--) {unichar c = [completeString characterAtIndex:cursorLocation];if (c == openingChar) {if (!skipMatchingBrace) {[(REditorTextStorage*)[textView textStorage] highlightCharacter:cursorLocation];return;} elseskipMatchingBrace--;} else if (c == characterToCheck)skipMatchingBrace++;}if (warn) NSBeep();} else { // ok, now reverse the roles and find the closing brace (if any)unsigned maxLimit=completeStringLength;//if (cursorLocation-maxLimit>4000) maxLimit=cursorLocation+4000; // just a soft limit to not search too far (but I think we're fast enough...)if (characterToCheck == '(') openingChar=')';else if (characterToCheck == '[') openingChar=']';else if (characterToCheck == '{') openingChar='}';if (openingChar) {while ((++cursorLocation)<maxLimit) {unichar c = [completeString characterAtIndex:cursorLocation];if (c == openingChar) {if (!skipMatchingBrace) {[(REditorTextStorage*)[textView textStorage] highlightCharacter:cursorLocation];return;} elseskipMatchingBrace--;} else if (c == characterToCheck)skipMatchingBrace++;}}}}- (void)textStorageDidProcessEditing:(NSNotification *)aNotification {NSTextStorage *ts = [aNotification object];NSString *s = [ts string];NSRange er = [ts editedRange];/* get all lines that span the range that was affected. this impementation updates only lines containing the change, not beyond */NSRange lr = [s lineRangeForRange:er];//lr.length = [ts length]-lr.location; // change everything up to the end of the document ...SLog(@"line range %d:%d (original was %d:%d), cil=%d", lr.location, lr.length, er.location, er.length, [ts changeInLength]);[self updateSyntaxHighlightingForRange:lr];if (!deleteBackward) {NSRange sr = [textView selectedRange];if (showMatchingBraces) [self highlightBracesWithShift:0 andWarn:YES];// check for a typed (if (argsHints && sr.length==0 && sr.location>0 && sr.location<[s length] && [s characterAtIndex:sr.location]=='(') {int i = sr.location-1;unichar c = [s characterAtIndex:i];BOOL hasLit = NO;while ((c>='0' && c<='9') || (c>='a' && c<='z') || (c>='A' && c<='Z') || c=='.' || c=='_') {if (!hasLit && ((c>='a' && c<='z') || (c>='A' && c<='Z'))) hasLit=YES;i--;if (i<0) break;c = [s characterAtIndex:i];}i++;if (hasLit && sr.location>i)[self hintForFunction: [s substringWithRange:NSMakeRange(i,sr.location-i)]];}}deleteBackward = NO;}- (BOOL)textView:(NSTextView *)textViewSrc doCommandBySelector:(SEL)commandSelector {BOOL retval = NO;if (textViewSrc!=textView) return NO;//NSLog(@"RTextView commandSelector: %@\n", NSStringFromSelector(commandSelector));if (@selector(insertNewline:) == commandSelector && execNewlineFlag) {execNewlineFlag=NO;return YES;}if (@selector(insertNewline:) == commandSelector) {// handling of indentation// currently we just copy what we get and add tabs for additional non-matched { bracketsNSTextStorage *ts = [textView textStorage];NSString *s = [ts string];NSRange csr = [textView selectedRange];NSRange ssr = NSMakeRange(csr.location, 0);NSRange lr = [s lineRangeForRange:ssr];if ([[self statusLineText] length]>0) [self setStatusLineText:@""];// line on which enter was pressed - this will be taken as guideif (csr.location>0) {int i=lr.location;int last=csr.location;int whiteSpaces=0, addShift=0;BOOL initial=YES;NSString *wss=@"\n";while (i<last) {unichar c=[s characterAtIndex:i];if (initial) {if (c=='\t' || c==' ') {whiteSpaces++;}else initial=NO;}if (c=='{') addShift++;if (c=='}' && addShift>0) addShift--;i++;}if (whiteSpaces>0)wss = [wss stringByAppendingString:[s substringWithRange:NSMakeRange(lr.location,whiteSpaces)]];while (addShift>0) { wss=[wss stringByAppendingString:@"\t"]; addShift--; }// add an undo checkpoint before actually committing the changes[self setUndoBreakpoint];[textView insertText:wss];return YES;}}if (showMatchingBraces) {if (commandSelector == @selector(deleteBackward:)) {deleteBackward = YES;}if (commandSelector == @selector(moveLeft:))[self highlightBracesWithShift: -1 andWarn:NO];if(commandSelector == @selector(moveRight:))[self highlightBracesWithShift: 0 andWarn:NO];}return retval;}- (NSArray *)textView:(NSTextView *)aTextView completions:(NSArray *)words forPartialWordRange:(NSRange)charRange indexOfSelectedItem:(int *)index{NSRange sr=[aTextView selectedRange];NSTextStorage * ts = [aTextView textStorage];NSString * s = [ts string];NSRange lr = [s lineRangeForRange:sr];SLog(@"completion attempt; cursor at %d, complRange: %d-%d", sr.location, charRange.location, charRange.location+charRange.length);NSString *rep=nil;NSRange er = NSMakeRange(lr.location,sr.location-lr.location);NSString *text = [[aTextView attributedSubstringFromRange:er] string];// first we need to find out whether we're in a text part or code partunichar c;int tl = [text length], tp=0, quotes=0, dquotes=0, lastQuote=-1;while (tp<tl) {c=[text characterAtIndex:tp];if (c=='\\') tp++; // skip the next char after a backslash (we don't have to worry about \023 and friends)else {if (dquotes==0 && c=='\'') {quotes^=1;if (quotes) lastQuote=tp;}if (quotes==0 && c=='"') {dquotes^=1;if (dquotes) lastQuote=tp;}}tp++;}if (quotes+dquotes>0) { // if we're inside any quotes, use file completion//rep=[FileCompletion complete:[text substringFromIndex:lastQuote+1]];er.location+=lastQuote+1;er.length-=lastQuote+1;return [FileCompletion completeAll:[text substringFromIndex:lastQuote+1] cutPrefix:0];} else { // otherwise use code completionint s = [text length]-1;c = [text characterAtIndex:s];while (((c>='a')&&(c<='z'))||((c>='A')&&(c<='Z'))||((c>='0')&&(c<='9'))||c=='.') {s--;if (s==-1) break;c = [text characterAtIndex:s];}s++;er.location+=s; er.length-=s;//rep=[CodeCompletion complete:[text substringFromIndex:s]];*index=0;{NSArray *ca = [CodeCompletion completeAll:[text substringFromIndex:s] cutPrefix:charRange.location-er.location];if (ca && [ca count]==1) [self hintForFunction:[[ca objectAtIndex:0] substringToIndex:[(NSString*)[ca objectAtIndex:0] length]-1]];return ca;}}// ok, by now we should get "rep" if completion is possible and "er" modified to match the proper partif (rep!=nil) {*index=0;return [NSArray arrayWithObjects: rep, @"dummy", nil];//[aTextView replaceCharactersInRange:er withString:rep];}return nil;}/*Here we only break the modal loop for the R_Edit call. Wether a windowis to be saved on exit or no, is up to Cocoa*/- (BOOL)windowShouldClose:(id)sender{SLog(@"RDocumentWinCtrl%@.windowShouldClose: (doc=%@, win=%@)", self, [self document], [self window]);if([[self document] hasREditFlag]) {[NSApp stopModal];[(RDocument*)[self document] setREditFlag: NO];}//[[self document] close];//[[[RDocumentController sharedDocumentController] currentDocument] close];return YES;}- (void) setEditable: (BOOL) editable{[textView setEditable:editable];}- (IBAction)executeSelection:(id)sender{NSRange sr = [textView selectedRange];if (sr.length>0) {NSString *stx = [[[textView textStorage] string] substringWithRange:sr];[[RController sharedController] sendInput:stx];}execNewlineFlag=YES;}- (IBAction)sourceCurrentDocument:(id)sender{if ([[self document] isDocumentEdited]) {RSEXP *x=[[REngine mainEngine] evaluateString:@"tempfile()"];NSString *fn=nil;if (x && (fn=[x string])) {if ([[self document] writeToFile:fn ofType:@"R"]) {[[RController sharedController] sendInput:[NSString stringWithFormat:@"source(\"%@\")\nunlink(\"%@\")", fn, fn]];}}} else {NSString *fn=[[self document] fileName];if (fn) {[[RController sharedController] sendInput:[NSString stringWithFormat:@"source(\"%@\")", fn]];}}}- (IBAction)setHelpSearchType:(id)sender{NSMenuItem *mi = (NSMenuItem*) sender;NSMenu *m = [(NSSearchFieldCell*) searchToolbarField searchMenuTemplate];int hst = [mi tag];if (mi && m && hst!=hsType) {SLog(@"setHelpSearchType: old=%d, new=%d", hsType, hst);NSMenuItem *cmi = [m itemWithTag:hsType];if (cmi) [cmi setState:NSOffState];hsType = hst;cmi = (NSMenuItem*) [m itemWithTag:hsType];if (cmi) [cmi setState:NSOnState];// sounds weird, but we have to re-set the tempate to force sf to update the real menu[(NSSearchFieldCell*) searchToolbarField setSearchMenuTemplate:m];}}- (IBAction)goHelpSearch:(id)sender{NSSearchField *sf = (NSSearchField*) sender;NSString *ss = [sf stringValue];SLog(@"RDocumentWinCtrl.goHelpSearch: \"%@\", type=%d", ss, hsType);if ([ss length]<1)[helpDrawer close];else {[helpDrawer open];switch (hsType) {case hsTypeExact: {RSEXP *x = [[REngine mainEngine] evaluateString:[NSString stringWithFormat:@"try(help(\"%@\"),silent=TRUE)", ss]];if (x) {NSString *path = [x string];if (path) {NSString *url = [NSString stringWithFormat:@"file://%@",path];[[helpWebView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:url]]];}[x release];}break;}case hsTypeApprox: {if (!helpTempFile)helpTempFile = [NSString stringWithFormat:@"/tmp/RguiHS%x", (int) self];SLog(@" - approx search will use %@", helpTempFile);RSEXP * x= [[REngine mainEngine] evaluateString:[NSString stringWithFormat:@"try({function(a){sink('%@'); cat(paste('<html><table>',paste('<tr><td><b>',a[,1],'</b> (<a href=\"file://',a[,4],'/html/00Index.html\">',a[,3],'</a></td><td>',a[,2],'</td></tr>',sep='',collapse=''),'</table></html>',sep=''));sink();'OK'}}(help.search(\"%@\")$matches),silent=TRUE)", helpTempFile, ss]];SLog(@" - resulting SEXP=%@", x);if (x && [x string] && [[x string] isEqual:@"OK"]) {NSString *url = [NSString stringWithFormat:@"file://%@",helpTempFile];[[helpWebView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:url]]];}[x release];break;}}}}- (NSView*) searchToolbarView{return searchToolbarView;}- (NSView*) fnListView{return fnListView;}@end