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Annotation of OpenXM/src/cfep/MyDocument.m, Revision 1.9

1.1       takayama    1: //
                      2: //  MyDocument.m
                      3: //  cfep
                      4: //
                      5: //  Created by Nobuki Takayama
                      6: //  Copyright (c) 2006 OpenXM.org
                      7: //
                      8:
                      9: // [self setDefaultPeer BASH] or [self setDefaultPeer OX_TEXMACS]
                     10:
                     11: #include <signal.h>
                     12: #import "MyDocument.h"
                     13: #import "MyOutputWindowController.h"
                     14: #import "MyOpenGLController.h"
                     15:
                     16: int myDebug=0;
                     17: static int myDocumentSaidTheMessageAboutX = 0;
                     18:
                     19:
                     20: @implementation MyDocument
1.4       takayama   21: static int NoEngine = 0; // experimental.
                     22: static NSMenuItem *menuItemNoEngine = nil;  // NoEngine
1.3       takayama   23: // For OnState or OffState in the execution menu
                     24: static NSMenuItem *menuItemNotebookMode = nil;
                     25: static NSMenuItem *menuItemBasicMode = nil;
                     26: static  NSMenuItem *menuItemRisaAsir = nil;
                     27: static  NSMenuItem *menuItemKanSm1 = nil;
                     28: static  NSMenuItem *menuItemOutputDebugMessages = nil;  //cf. debugMyTunnel;
                     29: static NSMenuItem *menuItemPrettyPrint = nil;  // prettyPrint.
                     30:
1.1       takayama   31:
                     32: - (void)dealloc {
                     33:     MyOutputWindowController *mowc;
                     34:     if (myDebug) NSLog(@"dealloc of MyDocument.\n");
                     35:        if (myDebug) NSLog(@"retainCount of task=%d\n",[task retainCount]); // why is it 2?
                     36:        [self closeMyModel];
                     37:        // [task dealloc];  //BUG. if we do this, error happens.
                     38:        mowc = [MyOutputWindowController sharedMyOutputWindowController: self];
                     39:        if (mowc != nil) [mowc closeMyOutputWindow: self];
                     40:        if (errorLines) { [errorLines autorelease]; errorLines = nil; }
                     41:
                     42:        [myDecoder dealloc];
                     43:
                     44:        [dataFromFile release];
                     45:        [rtfDataFromFile release];
                     46:        [textDataFromFile release];
                     47:        if (myDebug) NSLog(@"Done: dealloc of MyDocument.\n");
                     48:     [super dealloc];
                     49: }
                     50:
                     51: // The name of the nib file to load for this document.
                     52: - (NSString *)windowNibName
                     53: {
                     54:     return @"MyDocument";
                     55: }
                     56:
                     57: // Loads up the data when the nib file is loaded.
                     58: - (void)windowControllerDidLoadNib:(NSWindowController *)aController {
                     59:     [super windowControllerDidLoadNib:aController];
                     60:
                     61:     if (dataFromFile) {
                     62:         [self loadtextViewWithData:dataFromFile];
                     63:         [dataFromFile release];
                     64:         dataFromFile = nil;
                     65:     } else if (rtfDataFromFile) {
                     66:            [self loadtextViewWithRTFData: rtfDataFromFile];
                     67:                [rtfDataFromFile release];
                     68:                rtfDataFromFile = nil;
                     69:        } else if (textDataFromFile) {
                     70:            [self loadtextViewWithTextData: textDataFromFile];
                     71:                [textDataFromFile release];
                     72:                textDataFromFile = nil;
                     73:        }
                     74:     [self addMenuExec]; // adding the execution menu.
                     75:     [textViewIn setAllowsUndo:YES];
1.2       takayama   76:        if ([textViewIn isContinuousSpellCheckingEnabled]) [textViewIn toggleContinuousSpellChecking: self]; // Turn off the spell checking.
1.8       takayama   77:     if ([MyEnvironment isX11Installed] != 1)
                     78:          [self messageDialog: NSLocalizedString(@"X11 is not installed. To install it, insert MacOS DVD1 and open Optional install->Applications->X11",nil) with: 0];
1.9     ! takayama   79: //     if ([MyEnvironment isGccInstalled] != 1)
        !            80: //       [self messageDialog: NSLocalizedString(@"gcc is not installed. To install it, insert MacOS DVD1 and open Xcode Tools->XcodeTools.mpkg",nil) with: 0];
1.1       takayama   81:        [self sayTheMessageAboutX];
                     82:        [self initAux];
                     83: }
                     84:
                     85: // Load the view with data given an NSData.
                     86: - (void)loadtextViewWithData:(NSData *)data {
                     87:     [textViewIn replaceCharactersInRange:NSMakeRange(0, [[textViewIn string] length]) withRTFD:data];
                     88: }
                     89: - (void)loadtextViewWithRTFData:(NSData *)data {
                     90:     [textViewIn replaceCharactersInRange:NSMakeRange(0, [[textViewIn string] length]) withRTF:data];
                     91: }
                     92: -(void) loadtextViewWithTextData:(NSData *)data {
                     93:       [textViewIn replaceCharactersInRange: NSMakeRange(0,[[textViewIn string] length])
                     94:           withString:[NSString stringWithCString: [data bytes]  encoding:NSUTF8StringEncoding]];
                     95: }
                     96:
                     97: // Return an NSData representation of our document's view.
                     98: - (NSData *)dataRepresentationOfType:(NSString *)aType {
                     99:    if ([@"RTFWithGraphics" compare: aType] == NSOrderedSame) {
                    100:      return [textViewIn RTFDFromRange:NSMakeRange(0, [[textViewIn string] length])];
                    101:    }else if ([@"RTF" compare: aType] == NSOrderedSame) {
                    102:      return [textViewIn RTFFromRange:NSMakeRange(0, [[textViewIn string] length])];
                    103:    }else {
                    104:      return [[textViewIn string] dataUsingEncoding: NSUTF8StringEncoding];
                    105:    }
                    106: }
                    107:
                    108: // If we're loading from a file just retain the data and it will be
                    109: //  loaded when windowControllerDidLoadNib is invoked. If not, go
                    110: //  ahead and load the view with the data.
                    111: // These paths are separate in order to support Revert where the
                    112: //  data is reloaded but the nib is not.
                    113: - (BOOL)loadDataRepresentation:(NSData *)data ofType:(NSString *)aType {
                    114:    if ([@"RTFWithGraphics" compare: aType] == NSOrderedSame) {
                    115:     if (textViewIn)
                    116:         [self loadtextViewWithData:data];
                    117:     else
                    118:         dataFromFile = [data retain];
                    119:    }else if ([@"RTF" compare: aType] == NSOrderedSame) {
                    120:     if (textViewIn)
                    121:         [self loadtextViewWithRTFData:data];
                    122:     else
                    123:         rtfDataFromFile = [data retain];
                    124:    }else{
                    125:      if (textViewIn)
                    126:            [self loadtextViewWithTextData: data];
                    127:      else
                    128:            textDataFromFile = [data retain];
                    129:    }
                    130:
                    131:     return YES;
                    132: }
                    133:
                    134: // =======================================================================
                    135:
                    136: -(void) initAux {
                    137:     static int serial;
                    138:     MyEnvironment *myEnvironment;
                    139:        myDocumentKey = [@"myDocumentNo" stringByAppendingString: [NSString stringWithFormat: @"%d",(++serial)]];
                    140:        [myDocumentKey retain];
                    141:
                    142:        onlySelectedArea = 0;
                    143:        notebookMode = 0;  // or = 1; // experimental.
                    144:        oxEngine = 0; // experimental. For select engine menu.
                    145:        errorLines = [NSMutableArray arrayWithCapacity: 10]; [errorLines retain];
                    146:        debugMyTunnel = 0;
                    147:        task = nil;
                    148:        myEnvironment = [[MyEnvironment alloc] init]; [myEnvironment retain];
                    149:
                    150:        myDefaultTypingAttributes = [myEnvironment getMyDefaultTypingAttributes];
                    151:        [myDefaultTypingAttributes retain];
                    152:        [textViewIn setTypingAttributes: myDefaultTypingAttributes];
                    153:
                    154:        myDecoder = [[MyDecoder alloc] init]; [myDecoder retain];
                    155:
                    156:        [self openMyModel: myEnvironment ];
1.3       takayama  157:        [MyOpenGLController initMyOpenGLController]; // For the second execution, it will do nothing.
1.1       takayama  158: }
                    159: -(int) getMyDocumentKey { return myDocumentKey; }
                    160:
                    161: -(id) openMyModel: (MyEnvironment *) myEnvironment {
                    162:     [myEnvironment showForDebug]; // for debug.
                    163:     OpenXM_HOME= [myEnvironment getOpenXM_HOME];
                    164:        [OpenXM_HOME retain]; // without these SIGSEGV
                    165:        inputCounter = outputCounter = 0;
                    166:        redirectPrint = 0;
                    167:        peer = [myEnvironment getPeer];
                    168:        peerStartupString = [myEnvironment getPeerStartupString];
                    169:        [peerStartupString retain];
                    170:        peerEndEvaluteMark = [myEnvironment getPeerEndEvaluateMark];
                    171:        [peerEndEvaluteMark retain];
                    172:
                    173:        [self stopIndicator];
1.4       takayama  174:     if (NoEngine && (!restartMode)) { task = nil; return; }
                    175:
1.1       takayama  176:        // Initialization to call /bin/bash
                    177:     outboundPipe = [NSPipe pipe];  // since autorelease is called in pipe.
                    178:        inboundPipe   = [NSPipe pipe];
                    179:        errPipe      = [NSPipe pipe];
                    180:        [outboundPipe retain]; [inboundPipe retain]; [errPipe retain];
                    181:        outboundFileHandle = [outboundPipe fileHandleForWriting];
                    182:        inboundFileHandle  = [inboundPipe  fileHandleForReading];
                    183:        errFileHandle     = [errPipe      fileHandleForReading];
                    184:
                    185:        NSLog(@"Starting /bin/bash\n");
                    186:        task = [[NSTask alloc] init];
                    187:     [task setStandardInput: outboundPipe];
                    188:        [task setStandardOutput: inboundPipe];
                    189:        [task setStandardError:  errPipe];
                    190:        [task setEnvironment: [myEnvironment getMyUnixEnvironment]];
                    191:        //[task setArguments: [NSArray arrayWithObject: @"http://www.google.com"]];
                    192:        //[task setLaunchPath: @"/usr/bin/open"];
                    193:        //[task setLaunchPath: @"/Users/NobukiTakayama/OX4/OpenXM/bin/asir"];
                    194:        //[task setLaunchPath: @"/bin/date"];
                    195:        [task setLaunchPath: @"/bin/bash"];
                    196:     // launch will be done after nib is loaded.
                    197:     @try {  // version >= 10.3,  add option in info
                    198:        [task launch];
                    199:     } @catch (NSException *exception) {
                    200:        NSLog(@"init task launch Caught %@: %@", [exception name], [exception reason]);
                    201:     } @finally {
                    202:        NSLog(@"/bin/bash is started.\n");
                    203:           // fprintf(stderr,"pid = %d\n",[task processIdentifier]);
                    204:           signal(SIGPIPE,SIG_IGN); //BUG. non-cocoa way.
                    205:           [self oxEvaluateString: peerStartupString withMark: FALSE];
                    206:     }
                    207:
                    208:        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(readInboundData:)
                    209:       name:NSFileHandleDataAvailableNotification object: inboundFileHandle];
                    210:     [inboundFileHandle waitForDataInBackgroundAndNotify];
                    211:        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(readErrData:)
                    212:       name:NSFileHandleDataAvailableNotification object: errFileHandle];
                    213:     [errFileHandle waitForDataInBackgroundAndNotify];
                    214:
                    215:        return self;
                    216: }
                    217:
                    218: - (void) closeMyModel {
                    219:   [self stopIndicator];
                    220:   if (task == nil) {
                    221:     NSLog(@"closeMyModel. Task is not running.\n"); return ;
                    222:   }
                    223:   [[NSNotificationCenter defaultCenter] removeObserver:self
                    224:       name:NSFileHandleDataAvailableNotification object: inboundFileHandle];
                    225:   [[NSNotificationCenter defaultCenter] removeObserver:self
                    226:       name:NSFileHandleDataAvailableNotification object: errFileHandle];
                    227:
                    228:   [inboundFileHandle closeFile];
                    229:   [outboundFileHandle closeFile];
                    230:   [errFileHandle closeFile];
                    231:   [task terminate];
                    232:   task = nil; //BUG. memory leak?
                    233:   NSLog(@"Terminated the child process.\n");
                    234: }
                    235:
                    236: -(id) restartMyModel: (enum peer_type)  peerType {
                    237:     MyEnvironment *myEnvironment;
1.4       takayama  238:        restartMode = 1;
1.1       takayama  239:     [self closeMyModel];
                    240:        myEnvironment = [[MyEnvironment alloc] initFor: peerType];  //BUG. leak memory?
                    241:        [myEnvironment retain];
                    242:     [myEnvironment showForDebug]; // for debug.
                    243:        [self openMyModel: myEnvironment ];
                    244:     return self;
                    245: }
                    246:
                    247: // messenges
                    248: -(void) sayTheMessageAboutX {
                    249:   NSLog(@"myDocumentSaidTheMessageAboutX=%d\n",myDocumentSaidTheMessageAboutX);
                    250:   if (!myDocumentSaidTheMessageAboutX) {
                    251:     if ([MyEnvironment checkX] != 1)
1.5       takayama  252:          // [self messageDialog:
                    253:          //    NSLocalizedString(@"A few commands (plot, ...) cannot be used, because X11 is not running.",nil) with: 0];
                    254:          [self changeOutputCounterFieldWithString:
                    255:            [NSLocalizedString(@"Output mini-view: ",nil) stringByAppendingString:
                    256:                 NSLocalizedString(@"A few commands (plot, ...) cannot be used, because X11 is not running.",nil)]];
1.1       takayama  257:        myDocumentSaidTheMessageAboutX = 1;
                    258:   }
                    259: }
                    260:
                    261: - (IBAction) oxEvaluate:(id) sender {
                    262:   NSString* cmd0;
                    263:   NSMutableString *cmd;
                    264:   NSRange r;
                    265:
1.4       takayama  266:   if (!task) return;
1.1       takayama  267:   if (inEvaluation) {
                    268:         NSLog(@"In evaluatioin. ");
                    269:      [self messageDialog: NSLocalizedString(@"Evaluating...",nil) with: 0];
                    270:         return;
                    271:   }
                    272:   if (notebookMode) doInsertNewInputCell=0;
                    273:   else [[MyOutputWindowController sharedMyOutputWindowController: self] showUp];
                    274:   ox_texmacs_level=0;
                    275:   [self clearLines];
                    276:
                    277:   [textViewIn setTypingAttributes: myDefaultTypingAttributes];
                    278:
                    279:   if (notebookMode) {
                    280:     cmd0 = [self getContentsOfInputCell];
                    281:        [self prepareOutputCell];
                    282:   }else if (onlySelectedArea) {
                    283:     r = [textViewIn selectedRange];
                    284:        // NSLog(@"r=(%d,%d)\n",r.location,r.length);
                    285:     cmd0 = [textViewIn string];
                    286:        if (r.length != 0) {
                    287:                cmd0= [cmd0 substringWithRange: r];
                    288:        }else{
                    289:            int pos;
                    290:            r = [cmd0 lineRangeForRange: r];
                    291:                pos = r.location+r.length;
                    292:                [textViewIn setSelectedRange: r]; // select the range containing the insertion point.
                    293:                if (pos < [cmd0 length]) {
                    294:           [textViewIn replaceCharactersInRange: NSMakeRange(pos+1,0) withString: @""];
                    295:                }else{
                    296:           [textViewIn replaceCharactersInRange: NSMakeRange(pos,0) withString: @"\n"];
                    297:                }
                    298:                cmd0 = [cmd0 substringWithRange:r ];
1.6       takayama  299:        }
                    300:        [self outputBorderLine: [NSColor magentaColor]];
                    301:        [self outputString: cmd0];
                    302:        if ([cmd0 length] > 0) {
                    303:       if ([cmd0 characterAtIndex: ([cmd0 length]-1)] != 0xa) [self outputString: @"\n"];
                    304:     }
                    305:     [self outputBorderLine: [NSColor yellowColor]];
1.1       takayama  306:   }else{
                    307:     cmd0 = [textViewIn string];
                    308:     MyOutputWindowController *mc;
                    309:     mc = [MyOutputWindowController sharedMyOutputWindowController: self];
                    310:     [mc clearOutputWindow];
                    311:   }
                    312:   cmd = [NSMutableString stringWithString: cmd0 ];
                    313:
                    314:   [self changeInputCounterField: 1];
                    315:   if (peer == OX_TEXMACS) [self startIndicator];
                    316:   [self oxEvaluateString: cmd withMark: TRUE];
                    317:   [self changeOutputCounterField: 1];
                    318: }
                    319:
                    320: - (IBAction) oxInterrupt:(id) sender {
                    321:
                    322:   NSAlert *alert = [[NSAlert alloc] init];
                    323:   [alert addButtonWithTitle: NSLocalizedString(@"OK",nil)];
                    324:   [alert addButtonWithTitle: NSLocalizedString(@"Cancel",nil)];
                    325:   [alert setMessageText: NSLocalizedString(@"Interrupt the ox server?",nil)];
                    326:   [alert setInformativeText:NSLocalizedString(@"The OX-RFC-100 interruption protocol is used.",nil)];
                    327:   [alert setAlertStyle:NSWarningAlertStyle];
                    328:   if ([alert runModal] != NSAlertFirstButtonReturn) {
                    329:     // Cancel clicked, return.
                    330:     return;
                    331:   }
                    332:   [alert release];
                    333:
                    334:   fprintf(stderr,"Trying to interrupt.\n");
1.4       takayama  335:   if (task) [task interrupt];
1.1       takayama  336:   inputCounter = outputCounter = 0;
                    337:   [self stopIndicator];
                    338:   [myDecoder reset];
                    339: }
                    340: -(IBAction) oxRenderOutput: (id) sender {
                    341:   [self messageDialog: @"oxRenderOutput has not been implemented." with: 0];
                    342: }
                    343:
                    344: -(IBAction) oxEvaluateSelected: (id) sender {
                    345:   // try or test something here
                    346:    // end of try or test.
                    347:    // fprintf(stderr,"OnlySelectedArea\n");
                    348:   if (notebookMode && (onlySelectedArea == 0)) {
                    349:     [self messageDialog: NSLocalizedString(@"Selection will be ignored in the notebook style.",nil) with: 0];
                    350:   }
                    351:   if (onlySelectedArea) onlySelectedArea = 0; else onlySelectedArea = 1;
                    352: }
                    353:
                    354: -(IBAction) oxEvaluateRegisteredString: (id) sender {
                    355:   int ans;
                    356:   NSAlert *alert = [[NSAlert alloc] init];
                    357:   [alert addButtonWithTitle: NSLocalizedString(@"Cancel",nil)];
                    358:   [alert addButtonWithTitle: NSLocalizedString(@"unix shell",nil)];
                    359:   [alert addButtonWithTitle: NSLocalizedString(@"Risa/Asir",nil)];
                    360:   [alert setMessageText: NSLocalizedString(@"Restart the computation server?",nil)];
                    361:   //[alert setInformativeText:NSLocalizedString(@"",nil)];
                    362:   [alert setAlertStyle:NSWarningAlertStyle];
                    363:   ans = [alert runModal];
                    364:   [alert release];
                    365:   if (ans == NSAlertFirstButtonReturn) {
                    366:     // Cancel clicked, return.
                    367:     return ;
                    368:   } else if (ans == NSAlertSecondButtonReturn) {
                    369:        [self restartMyModel: BASH];
                    370:     inputCounter = outputCounter = 0;
                    371:        return ;
                    372:   }else{
                    373:     [self restartMyModel: OX_TEXMACS];
                    374:     inputCounter = outputCounter = 0;
                    375:        [myDecoder reset];
                    376:     return;
                    377:   }
                    378: }
                    379:
                    380: -(IBAction) checkSelectedArea: (id) sender {
                    381:   int ans;
                    382:   ans = [self selectIllegalCharacter];
                    383:   if (ans) return;
                    384:   [self selectBlockForward];
                    385: }
                    386:
                    387: -(int) oxEvaluateString: (NSString *) cmd withMark: (BOOL) yes {
                    388:   NSData* cmdInData;
                    389:   NSLog(@"Evaluating...  ");
                    390:   NSLog(@"%@",cmd);
                    391:   // Evaluation is here.
1.4       takayama  392:   if (!task) return -1;
1.1       takayama  393:   cmdInData = [cmd dataUsingEncoding: NSUTF8StringEncoding];
                    394:   @try {
                    395:     //todo  if (yes) [outboundFileHandle writeData: peerStartEvaluateMark];
                    396:     [outboundFileHandle writeData: cmdInData];
                    397:     if (yes) [outboundFileHandle writeData: peerEndEvaluteMark];
                    398:   } @catch (NSException *exception) {
                    399:       NSLog(@"oxEvalluateString Caught %@: %@", [exception name], [exception reason]);
                    400:       [self messageDialog: NSLocalizedString(@"Error: Engine is not responding.",nil) with: 0];
                    401:          return -1;
                    402:   } @finally {
                    403:       NSLog(@"writeData suceeded.\n");
                    404:   }
                    405:   // [NSThread sleepUntilDate: [NSDate dateWithTimeIntervalSinceNow: 10.0]];
                    406:   NSLog(@"\nDone.\n");
                    407:   return 0;
                    408: }
                    409:
                    410: - (void) outputString: (NSString *) amt {
                    411:   NSRange myRange = NSMakeRange([[textViewOut textStorage] length],0);
                    412:   if (myDebug) NSLog(@"Get in outputString\n");
                    413:   [textViewOut replaceCharactersInRange: myRange withString: amt];
                    414:   [textViewOut scrollRangeToVisible: NSMakeRange([[textViewOut textStorage] length],0)];
                    415:   //[textViewOut replaceCharactersInRange: NSMakeRange(0,NSMakeRange(0,[textViewOut length])) withString: amt];
                    416:   if (notebookMode) [self outputStringInNotebookMode: amt];
                    417:   else {
                    418:     MyOutputWindowController *mc;
                    419:     mc = [MyOutputWindowController sharedMyOutputWindowController: self];
1.3       takayama  420:     if (prettyPrint) [mc outputStringToOutputWindow: amt withColor: [NSColor blueColor]];
                    421:        else [mc outputStringToOutputWindow: amt];
1.1       takayama  422:   }
                    423: }
1.5       takayama  424: -(void)outputBorderLine: (NSColor *)color {
                    425:     MyOutputWindowController *mc;
                    426:     mc = [MyOutputWindowController sharedMyOutputWindowController: self];
                    427:     [mc outputStringToOutputWindow: @"----------------------------------------\n" withColor: color];
                    428: }
1.1       takayama  429: - (void) outputErrorString: (NSString *) amt {
                    430:   int oldEnd;
                    431:   int newEnd;
                    432:   oldEnd = [[textViewOut textStorage] length];
                    433:   NSRange myRange = NSMakeRange(oldEnd,0);
                    434:   [textViewOut replaceCharactersInRange: myRange withString: amt];
                    435:   newEnd = [[textViewOut textStorage] length];
                    436:   [textViewOut setTextColor: [NSColor orangeColor] range: NSMakeRange(oldEnd,newEnd-oldEnd)];
                    437:   [textViewOut scrollRangeToVisible: NSMakeRange(newEnd,0)];
                    438: }
                    439:
                    440: - (void) printErrorMessage: (NSString *) amt {
                    441:   MyOutputWindowController *mc;
                    442:   if (notebookMode) [self outputErrorStringInNotebookMode: amt];
                    443:   else {
                    444:     mc = [MyOutputWindowController sharedMyOutputWindowController: self];
                    445:     [mc printErrorMessageToOutputWindow: amt];
                    446:   }
                    447: }
                    448: -(void)outputStringInNotebookMode: (NSString *)msg {
                    449:   [self outputStringInNotebookMode: msg withColor: [NSColor blueColor]];
                    450: }
                    451: -(void)outputErrorStringInNotebookMode: (NSString *)msg {
                    452:   [self outputStringInNotebookMode: msg withColor: [NSColor redColor]];
                    453: }
                    454: -(void)outputStringInNotebookMode: (NSString *)msg withColor: (NSColor *)color{
                    455:   NSRange range;
                    456:   int insertPos;
                    457:   range=[textViewIn selectedRange];
                    458:   insertPos = range.location+range.length;
                    459:   range = NSMakeRange(insertPos,0);
                    460:   [textViewIn replaceCharactersInRange: range withString: msg];
                    461:   range = NSMakeRange(insertPos,[msg length]);
                    462:   [textViewIn setTextColor: color range: range];
                    463:   range=NSMakeRange(range.location+range.length,0);
                    464:   [textViewIn scrollRangeToVisible: range];
                    465:   [textViewIn setSelectedRange: range];
                    466:  @synchronized(self) {
                    467:   if (doInsertNewInputCell) {
                    468:     if (![self getOutOfOutputCell]) [self insertInputCell];
                    469:        doInsertNewInputCell = 0;
                    470:   }
                    471:  }
                    472: }
                    473:
                    474: -(IBAction) clearTextViewOut: (id) sender {
                    475:   NSRange myRange = NSMakeRange(0,[[textViewOut textStorage] length]);
                    476:   [textViewOut replaceCharactersInRange: myRange withString: @""];
                    477:   [textViewOut replaceCharactersInRange: NSMakeRange(0,0) withString: @" \n \n \n"];
                    478:   [textViewOut scrollRangeToVisible: NSMakeRange(0,[[textViewOut textStorage] length])];
                    479: }
                    480:
                    481: - (void) messageDialog: (NSString *)msg with: (int) no {
                    482:   char s[256];
                    483:   NSAlert *alert = [[NSAlert alloc] init];
                    484:   sprintf(s,"%d",no);
                    485:   [alert addButtonWithTitle: @"OK"];
                    486:   [alert setMessageText: msg] ;
                    487:   if (no) [alert setInformativeText: [NSString stringWithCString: (const char *) s]];
                    488:   [alert setAlertStyle:NSWarningAlertStyle];
                    489:   [alert runModal];
                    490:   [alert release];
                    491: }
                    492:
                    493: -(void) printDocument: (id) sender {
                    494:   int status;
                    495:   NSAlert *alert = [[NSAlert alloc] init];
                    496:   [alert addButtonWithTitle:NSLocalizedString(@"Cancel",nil)];
                    497:   [alert addButtonWithTitle:NSLocalizedString(@"Print output view",nil)];
                    498:   [alert addButtonWithTitle:NSLocalizedString(@"Print input view",nil)];
                    499:   [alert setMessageText:NSLocalizedString(@"Which view will you print?",nil)];
                    500:   [alert setAlertStyle:NSWarningAlertStyle];
                    501:   status = [alert runModal];
                    502:   switch(status) {
                    503:     case NSAlertThirdButtonReturn:
                    504:                [textViewIn print: sender]; break;
                    505:     case NSAlertSecondButtonReturn:
                    506:            [textViewOut print: sender]; break;
                    507:        default:
                    508:     // Cancel clicked, return.
                    509:                return;
                    510:   }
                    511:   [alert release];
                    512: }
                    513:
                    514: -(void) showHelp: (id)sender {
                    515:    BOOL ans;
                    516:    NSString *path=nil;
                    517:    //bug. temporary.
                    518:    path = [OpenXM_HOME stringByAppendingString: @"/doc/cfep/intro-ja.html"];
                    519:
1.2       takayama  520:    ans = [[NSWorkspace sharedWorkspace] openFile:path withApplication: @"Safari"]; //We do not use Help Viewer
1.1       takayama  521:    if (ans != YES) {
                    522:       [self messageDialog: NSLocalizedString(@"Help file is not found at cfep.app/OpenXM/doc/cfep",nil) with: 0];
                    523:    }
                    524: }
                    525:
                    526: -(void) changeInputCounterField: (int) inc {
                    527:   NSString *ss;
                    528:   ss = [NSString stringWithFormat: NSLocalizedString(@"Input%d",nil), inputCounter];
                    529:   [inputCounterField setStringValue: ss];
                    530:   inputCounter += inc;
                    531:   return;
                    532: }
                    533: -(void) changeOutputCounterField: (int) inc {
                    534:   NSString *ss;
                    535:   ss = [NSString stringWithFormat: NSLocalizedString(@"Out%d",nil),outputCounter];
                    536:   [outputCounterField setStringValue: ss];
                    537:   outputCounter += inc;
                    538:   return;
                    539: }
                    540: -(void) changeOutputCounterFieldWithString: (NSString *) ss {
                    541:   [outputCounterField setStringValue: ss];
                    542:   return;
                    543: }
                    544:
                    545: -(void) startIndicator {
                    546:   if (inEvaluation) return ;
                    547:   inEvaluation = 1;
                    548:   [myIndicator startAnimation: self];
                    549: }
                    550: -(void) stopIndicator {
                    551:   if (inEvaluation == 0) return ;
                    552:   inEvaluation = 0;
                    553:   [myIndicator stopAnimation: self];
                    554: }
                    555:
                    556:
                    557: int debugInbound = 0;
                    558: - (void)readInboundData:(NSNotification*)aNotification
                    559: {
                    560:   static int state=0;
                    561:   static int u0 = 0;
                    562:   static int u1 = 0;
                    563:   static int u2 = 0;
                    564:   int n,i,j,k;
                    565:   unsigned char *d;
                    566:   unsigned char *d2;
                    567:   int c;
                    568:   NSMutableString* inboundString;
                    569:   NSData* data;
                    570:   NSMutableData* data2;
                    571:   NSString *act;
                    572:   int channel;
                    573:   @synchronized (self) {
                    574:     if (debugInbound) NSLog(@"Reading inboudData\n");
                    575:     data=[ inboundFileHandle availableData ];
                    576:     n = [data length]; d = (unsigned char *)[data bytes];
                    577:     if (debugInbound) NSLog(@"n=%d\n",n);
                    578: //     if (n < 30) { for (k=0; k<n; k++) printf("%2x ",d[k]); printf("\n"); }
                    579:     if (n == 0) { NSLog(@"Broken pipe?\n"); [self messageDialog: @"Error: Engine is not responding." with: 0]; return ; }
                    580:     data2 = [NSMutableData dataWithCapacity: (n+4)];
                    581:     d2 = (unsigned char *)[data2 mutableBytes];
                    582:     i = 0;  d2[i] = 0;
                    583:     for (j = 0; j< n; j++) {
                    584:       c = d[j];
                    585:       if (c == END_OF_EVALUATION_OF_OX_TEXMACS) {
                    586:         [self stopIndicator];
                    587:                ox_texmacs_level--;
                    588:                if (ox_texmacs_level <= 0) doInsertNewInputCell = 1;
                    589:       } else if (c == START_OF_RESULT_OF_OX_TEXMACS) {
                    590:            ox_texmacs_level++;
                    591:          }
                    592:       switch(state) {
                    593:       case 1:
                    594:         u1 = d[j];
                    595:         d2[i] = u0; i++; d2[i] = u1; i++; d2[i] = 0;
                    596:         state = 0; break;
                    597:       case 2:
                    598:         u1 = d[j]; state = 3; break;
                    599:       case 3:
                    600:         u2 = d[j];
                    601:         d2[i] = u0; i++; d2[i] = u1; i++; d2[i] = u2; i++ ; d2[i] = 0;
                    602:         state = 0; break;
                    603:       case 4:  // MYDECODER
                    604:         u1 = d[j]; state = 5; break;
                    605:       case 5:
                    606:         u2 = d[j];
                    607:         c = ((u0 & 0x3) << 6) | (((u1 & 0x7) << 3) & 0x38) | (u2 & 0x7);
                    608:         // NSLog(@"|%2x| ",c);  // send it to myDecoder
                    609:                act = [myDecoder myDecoder: c from: self];
                    610:                if (act != nil) {
                    611:                  if (debugMyTunnel) [self outputErrorString: act]; // for debug.
                    612:           channel = [myDecoder getChannel];
                    613:           if (channel == 0) [self errorActionFor: act];
1.2       takayama  614:                  // cf. MyDecode.h for the list of channel numbers.
1.1       takayama  615:                  else if (channel == 1) [self openGLActionFor: act];
                    616:                  else if (channel == 2) [self openGLInitActionFor: act];
1.2       takayama  617:                  else if (channel == 10) [self pngActionFor: act];
1.1       takayama  618:         }
                    619:         state = 0; break;
                    620:       default:
                    621:         c=d[j];
                    622:         if ((c >> 5) == UTF8_2) { u0=c ; state=1; }
                    623:         else if ((c >> 4) == UTF8_3) { u0 =c ; state = 2; }
                    624:         else if ((c >> 2) == MYDECODER) { u0=c; state = 4; }
                    625:         else if ( c & 0x80) {
                    626:           state = 0; NSLog(@"err|%2x| ",c);
                    627:         }else {
                    628:           if (c > 5) {
                    629:             d2[i] = c; i++; d2[i] = 0; state = 0;
                    630:           }
                    631:         }
                    632:       }
                    633:     }
                    634:   }
                    635:   if (i) {
                    636:     inboundString = [NSString stringWithCString: d2 encoding: NSUTF8StringEncoding];
                    637:     [self outputString: inboundString];  // do this out of the synchronized session.
                    638:   }
                    639:
                    640:   if (n) [[aNotification object] waitForDataInBackgroundAndNotify];
                    641: }
                    642:
                    643:
                    644: - (void)readErrData:(NSNotification*)aNotification
                    645: {
                    646:   int n,i,j;
                    647: #define MD_SIZE 5000
                    648:   unsigned char *d;
                    649:   int c;
                    650:   NSMutableString* inboundString;
                    651:   NSData*  inboundData ;
                    652:   @synchronized (self) {
                    653:   inboundString = [NSMutableString stringWithCapacity: (MD_SIZE+2)];
                    654:
                    655:   // NSLog(@"(err) Reading inboudData\n");
                    656:   inboundData=[ errFileHandle availableData ];
                    657:   n = [inboundData length]; d = (unsigned char *)[inboundData bytes];
                    658:   i = 0;
                    659:   while (i < n ) {
                    660:     for (j = 0; j<MD_SIZE ; j++ ) {
                    661:           c = d[i];   // putchar(c);
                    662:           [inboundString appendString: [NSString stringWithFormat: @"%c", (c & 0x7f)]  ];
                    663:           i++; if (i >= n) { j++; break;}
                    664:        }
                    665:        // NSLog( [NSString stringWithFormat: @"i=%d, j=%d\n", i, j] );
                    666:        j++;
                    667: //    NSLog(@"%@", inboundString );
                    668:     [self outputErrorString: inboundString];
                    669:     inboundString = [NSMutableString stringWithCapacity: (MD_SIZE+2)] ;
                    670:   }
                    671:   }
                    672:   if (n) [[aNotification object] waitForDataInBackgroundAndNotify];
                    673:
                    674: }
                    675:
                    676: -(int) specialCharacterInNotebookMode: (int) c {
                    677:   if (!notebookMode) return 0;
                    678:   if (c == BEGIN_INPUT_CELL) return 1;
                    679:   else if (c==BEGIN_OUTPUT_CELL) return 1;
                    680:   else if (c==END_INPUT_CELL) return 1;
                    681:   else if (c==END_OUTPUT_CELL) return 1;
                    682:   return 0;
                    683: }
                    684: -(int) selectIllegalCharacter {
                    685:   NSRange r;
                    686:   NSString *in;
                    687:   int i, n;
                    688:   int state,offset;
                    689:   int c,c2;
                    690:   // 1: in /*
                    691:   // 2: in //
                    692:   // 3: in "
                    693:   // 4: in '
                    694:   in = [textViewIn string];
                    695:   r = [textViewIn selectedRange];
                    696:   //NSLog(@"%d, %d\n",r.location, r.length);
                    697:   if (r.length < 1) {
                    698:     offset = 0;
                    699:     n = [in length];
                    700:   }else{
                    701:     offset = r.location;
                    702:     n = offset + r.length;
                    703:   }
                    704:   state = 0;
                    705:   for (i=offset; i<n; i++) {
                    706:     c = [in characterAtIndex: i];  // NSLog(@"|%04x| ",c);
                    707:     if (i != n-1) c2 = [in characterAtIndex: (i+1)];
                    708:     else c2 = 0;
                    709:     switch (state) {
                    710:     case 0:
                    711:       if ((c == 0x1b)) {
                    712:         [textViewIn setSelectedRange: NSMakeRange(i,1)];
                    713:         [self outputErrorString:
                    714:                 NSLocalizedString(@"Error: Illegal control character.\n",nil)];
                    715:         return 1;
                    716:       }
                    717:       if ((c > 0x7e) && (![self specialCharacterInNotebookMode: c])) {
                    718:         [textViewIn setSelectedRange: NSMakeRange(i,1)];
                    719:         [self outputErrorString:
                    720:                 NSLocalizedString(@"Error: Program part must be written only by ascii characters.\n",nil)];
                    721:         return 1;
                    722:       }
                    723:       if (((c == '/') && (c2 == '*')) || (notebookMode && (c == BEGIN_OUTPUT_CELL))) {
                    724:         i++; state = 1;
                    725:       }else if ((c == '/') && (c2 == '/')) {
                    726:         i++; state = 2;
                    727:       }else if (c == '"') {
                    728:         state = 3;
                    729:       }else if (c == '\'') {
                    730:         state = 4;
                    731:       }else state=0;
                    732:       break;
                    733:     case 1:
                    734:       if (((c == '*') && (c2 == '/')) || (notebookMode && (c2 == END_OUTPUT_CELL))) {
                    735:         i++; state = 0;
                    736:       }
                    737:       break;
                    738:     case 2:
                    739:       if (c == '\n') state = 0;
                    740:       break;
                    741:     case 3:
                    742:       if (c == '"') state = 0;
                    743:       else if (c == '\\') {
                    744:         i++; //BUG. skip only one letter.
                    745:       }
                    746:       break;
                    747:     case 4:
                    748:       if (c == '\'') state = 0;
                    749:       else if (c == '\\') {
                    750:         i++; //BUG. skip only one letter.
                    751:       }
                    752:       break;
                    753:     }
                    754:   }
                    755: //  [self outputErrorString: @"No illegal character.\n"];
                    756:   return 0;
                    757: }
                    758:
                    759: -(NSRange) selectBlockForward {
                    760:   NSRange r;
                    761:   NSRange ans;
                    762:   NSString *in;
                    763:   int i, n;
                    764:   int first, last,offset, state;
                    765:   int c,c2;
                    766:   static int prevStart = -1;
                    767:
                    768:   first = last = 0;
                    769:   ans = NSMakeRange(0,0);
                    770:
                    771:   // 1: in /*
                    772:   // 2: in //
                    773:   // 3: in "
                    774:   // 4: in '
                    775:   in = [textViewIn string];
                    776:   r = [textViewIn selectedRange];
                    777:   if (r.length < 1) {
                    778:     offset = 0;
                    779:   } else {
                    780:     offset = r.location;
                    781:   }
                    782:   if (offset == prevStart) {
                    783:     offset = offset+1;
                    784:   }
                    785:   n = [in length];
                    786:   if (offset >= n) offset = 0;
                    787:   state = 0;
                    788:   for (i=offset; i<n; i++) {
                    789:     c = [in characterAtIndex: i];
                    790:     if (i != n-1) c2 = [in characterAtIndex: (i+1)];
                    791:     else c2 = 0;
                    792:     switch (state) {
                    793:     case 0:
                    794:       if (c == '{') {
                    795:         ans=[self selectBlockForwardFrom: i with: c and: '}'];
                    796:                if (prevStart != ans.location) { prevStart = ans.location; }
                    797:                return ans;
                    798:       }else if (c == '(') {
                    799:         ans=[self selectBlockForwardFrom: i with: c and: ')'];
                    800:                if (prevStart != ans.location) { prevStart = ans.location; }
                    801:                return ans;
                    802:       }else if (c == '[') {
                    803:         ans=[self selectBlockForwardFrom: i with: c and: ']'];
                    804:                if (prevStart != ans.location) { prevStart = ans.location; }
                    805:                return ans;
                    806:          }
                    807:       if ((c == '/') && (c2 == '*')) {
                    808:         i++; state = 1;
                    809:       }else if ((c == '/') && (c2 == '/')) {
                    810:         i++; state = 2;
                    811:       }else if (c == '"') {
                    812:         state = 3;
                    813:       }else if (c == '\'') {
                    814:         state = 4;
                    815:       }else state=0;
                    816:       break;
                    817:     case 1:
                    818:       if ((c == '*') && (c2 == '/')) {
                    819:         i++; state = 0;
                    820:       }
                    821:       break;
                    822:     case 2:
                    823:       if (c == '\n') state = 0;
                    824:       break;
                    825:     case 3:
                    826:       if (c == '"') state = 0;
                    827:       else if (c == '\\') {
                    828:         i++; //BUG. skip only one letter.
                    829:       }
                    830:       break;
                    831:     case 4:
                    832:       if (c == '\'') state = 0;
                    833:       else if (c == '\\') {
                    834:         i++; //BUG. skip only one letter.
                    835:       }
                    836:       break;
                    837:     }
                    838:   }
                    839:   return ans;
                    840: }
                    841: -(NSRange) selectBlockForwardFrom: (int) offset with: (int) first and: (int) last {
                    842:   NSRange r;
                    843:   NSRange ans;
                    844:   NSString *in;
                    845:   int i, n;
                    846:   int state;
                    847:   int c,c2;
                    848:   int level;
                    849:   int startpos;
                    850:
                    851:   level = 0;
                    852:   ans = NSMakeRange(0,0);
                    853:
                    854:   // 1: in /*
                    855:   // 2: in //
                    856:   // 3: in "
                    857:   // 4: in '
                    858:   in = [textViewIn string];
                    859:   r = [textViewIn selectedRange];
                    860:   n = [in length];
                    861:   state = 0;
                    862:   for (i=offset; i<n; i++) {
                    863:     c = [in characterAtIndex: i];
                    864:     if (i != n-1) c2 = [in characterAtIndex: (i+1)];
                    865:     else c2 = 0;
                    866:     switch (state) {
                    867:     case 0:
                    868:       if (level == 0) {
                    869:         if (c == first) {
                    870:           level = 1; startpos = i;
                    871:         }
                    872:       } else if (level > 0) {
                    873:         if (c == first) level++;
                    874:         else if (c == last) level--;
                    875:         else ;
                    876:         if (level == 0) {
                    877:           ans = NSMakeRange(startpos, i+1-startpos);
                    878:           [textViewIn setSelectedRange: ans];
                    879:           [textViewIn scrollRangeToVisible: NSMakeRange(startpos,0)];
                    880:           return ans;
                    881:         }
                    882:       }
                    883:
                    884:       if ((c == '/') && (c2 == '*')) {
                    885:         i++; state = 1;
                    886:       }else if ((c == '/') && (c2 == '/')) {
                    887:         i++; state = 2;
                    888:       }else if (c == '"') {
                    889:         state = 3;
                    890:       }else if (c == '\'') {
                    891:         state = 4;
                    892:       }else state=0;
                    893:       break;
                    894:     case 1:
                    895:       if ((c == '*') && (c2 == '/')) {
                    896:         i++; state = 0;
                    897:       }
                    898:       break;
                    899:     case 2:
                    900:       if (c == '\n') state = 0;
                    901:       break;
                    902:     case 3:
                    903:       if (c == '"') state = 0;
                    904:       else if (c == '\\') {
                    905:         i++; //BUG. skip only one letter.
                    906:       }
                    907:       break;
                    908:     case 4:
                    909:       if (c == '\'') state = 0;
                    910:       else if (c == '\\') {
                    911:         i++; //BUG. skip only one letter.
                    912:       }
                    913:       break;
                    914:     }
                    915:   }
                    916:   if (level > 0) {
                    917:     [self outputErrorString: NSLocalizedString(@"Error: No right parenthesis.\n",nil)] ;
                    918:     [textViewIn setSelectedRange: NSMakeRange(startpos,n-startpos)];
                    919:     ans = NSMakeRange(startpos,-1);
                    920:     return ans;
                    921:   }
                    922:   return ans;
                    923: }
                    924:
                    925: -(void) errorActionFor: (NSString *)cmd
                    926: {
                    927:   NSArray *a;
                    928:   NSRange r;
                    929:   static NSRange r2;
                    930:   static NSRange r3;
                    931:   static int r2IsSet;
                    932:   static int r3IsSet;
                    933:   NSString *s;
                    934:   int line,i, currentLine;
                    935:   // NSLog(@"cmd=%@\n",cmd);
                    936:   if ([cmd hasPrefix: @"Begin"] == YES) {
                    937:      r3IsSet = 0; r2IsSet = 0;
                    938:   }else if ([cmd hasPrefix: @"End"] == YES) {
                    939:      if (r2IsSet) {
                    940:        [textViewIn setSelectedRange: r2];
                    941:        [textViewIn scrollRangeToVisible: r2];
                    942:            r2IsSet = 0;
                    943:      }
                    944:      if (r3IsSet) {  //gotoLine, xyz is stronger than findAndSelect.
                    945:         [textViewIn setSelectedRange: r3];
                    946:         [textViewIn scrollRangeToVisible: r3];
                    947:                r3IsSet = 0;
                    948:         }
                    949:   }else if ([cmd hasPrefix: @"findAndSelect"] == YES) {
                    950:     a = [cmd componentsSeparatedByString: @", "];
                    951:        if ([a count] > 1) {
                    952:          a = [[a objectAtIndex: 1] componentsSeparatedByString: @"\n"];
                    953:          s = [a objectAtIndex: 0];
                    954:       r2 = [[textViewIn string] rangeOfString: s];
                    955:          r2IsSet = 1;
                    956:          // selection will be done in End.
                    957:          [self printErrorMessage: [NSLocalizedString(@"Error in executing ",nil) stringByAppendingString: s]];
                    958:          [self printErrorMessage: @"\n"];
                    959:        }
                    960:   }else if ([cmd hasPrefix: @"findAndShow"] == YES) {
                    961:     a = [cmd componentsSeparatedByString: @", "];
                    962:        if ([a count] > 1) {
                    963:          a = [[a objectAtIndex: 1] componentsSeparatedByString: @"\n"];
                    964:          s = [a objectAtIndex: 0];
                    965:          [self printErrorMessage: [NSLocalizedString(@"Error in executing ",nil) stringByAppendingString: s]];
                    966:          [self printErrorMessage: @"\n"];
                    967:        }
                    968:   }else if ([cmd hasPrefix: @"printErrorMessage"] == YES) {
                    969:     a = [cmd componentsSeparatedByString: @"ErrorMessage, "];
                    970:        if ([a count] > 1) {
                    971:          s = [a objectAtIndex: 1];
                    972:          [self printErrorMessage: [NSLocalizedString(@"Error: ",nil) stringByAppendingString: s]];
                    973:          [self printErrorMessage: @"\n"];
                    974:     }
                    975:   }else if ([cmd hasPrefix: @"gotoLine"] == YES) {
                    976:     a = [cmd componentsSeparatedByString: @"Line, "];
                    977:        if ([a count] > 1) {
                    978:          s = [a objectAtIndex: 1];
                    979:       [self printErrorMessage: [NSLocalizedString(@"Error at ",nil) stringByAppendingString: s]];
                    980:       [self printErrorMessage: @"\n"];
                    981:          line = [s intValue];
                    982:          [self addLine: line];
                    983:          // move the selection to the line.
                    984:          i = [self gotoLine: line];
                    985:          if (i >= 0) {
                    986:                  r3 = NSMakeRange(i,0);   // NSLog(@"Goto the location=%d\n",i);
                    987:                  r3IsSet = 1;
                    988:          }
                    989:     }
                    990:   }
                    991: }
                    992:
                    993: -(void) clearLines {
                    994:   [errorLines removeAllObjects];
                    995:   [self nextLine: -1];
                    996: }
                    997: -(void) addLine: (int) n {
                    998:   [errorLines addObject: [NSNumber numberWithInt: n]];
                    999: }
                   1000: -(int) nextLine: (int) n {
                   1001:   static int p = 0;
                   1002:   int v;
                   1003:   if (n < 0) { p = 0; return -1; }
                   1004:   if (p < [errorLines count]) ; else { p = 0; return -1;}
                   1005:   v = [[errorLines objectAtIndex: p] intValue];
                   1006:   p++;
                   1007:   return v;
                   1008: }
                   1009: -(int) gotoLine: (int) line {
                   1010:       NSString *s;
                   1011:          NSRange r;
                   1012:          NSRange r3;
                   1013:          int currentLine,i;
1.3       takayama 1014:          [self outputErrorString: NSLocalizedString(@"Move to the line ",nil)];
                   1015:          [self outputErrorString: [NSString stringWithFormat: @"%d\n",line]];
1.1       takayama 1016:          // move the selection to the line line.
                   1017:          s = [textViewIn string];
                   1018:          if (onlySelectedArea || notebookMode) r = [textViewIn selectedRange];
                   1019:          else r = NSMakeRange(0,[s length]);
                   1020:          // NSLog(@"r.location=%d",r.location);
                   1021:          currentLine = 1;
                   1022:          for (i=r.location; i< r.location+r.length; i++) {
                   1023:            if (currentLine == line) {
                   1024:                  r3 = NSMakeRange(i,0);   // NSLog(@"Goto the location=%d\n",i);
                   1025:           [textViewIn setSelectedRange: r3 ];
                   1026:           [textViewIn scrollRangeToVisible: r3];
                   1027:                  return i; // set r3IsSet
                   1028:                  break;
                   1029:                }
                   1030:            if ([s characterAtIndex: i] == '\n') ++currentLine;
                   1031:          }
                   1032:          return -1;
                   1033: }
                   1034: -(int) gotoNextError: (id) sender{
                   1035:   int n;
1.3       takayama 1036:   if (onlySelectedArea || notebookMode)
                   1037:     [self outputErrorString: NSLocalizedString(@"The next error action will not work properly in this mode.\n",nil)];
1.1       takayama 1038:   n = [self nextLine: 0];
                   1039:   if (n >= 0) { [self gotoLine: n]; return n;}
                   1040:   else return -1;
                   1041: }
                   1042:
                   1043: /* act= 0;[glRectf,-0.5, ...] */
                   1044: -(int) openGLActionFor: (NSString *)act {
                   1045:   NSArray *a;
                   1046:   int gid;
                   1047:   a=[act componentsSeparatedByString: @";"];
                   1048:   if ([a count] < 2) {
                   1049:     [self printErrorMessage: @"Invalid format in openGLActionFor. gid and command must be separated by ;\n"];
                   1050:        return -1;
                   1051:   }
                   1052:   gid = [[a objectAtIndex: 0] intValue];
1.3       takayama 1053:   if ([[a objectAtIndex: 1] hasPrefix: @"meta"]) {[self openGLMeta: [a objectAtIndex: 1] to: gid]; return; }
1.1       takayama 1054:   [MyOpenGLController addOglComm: [a objectAtIndex: 1] to: gid from: self];
                   1055:   return 0;
                   1056: }
                   1057: -(int) openGLInitActionFor: (NSString *) act {
                   1058:   NSArray *a;
                   1059:   int gid;
                   1060:   a=[act componentsSeparatedByString: @";"];
                   1061:   if ([a count] < 2) {
                   1062:     [self printErrorMessage: @"Invalid format in openGLInitActionFor. gid and command must be separated by ;\n"];
                   1063:        return -1;
                   1064:   }
                   1065:   gid = [[a objectAtIndex: 0] intValue];
                   1066:   [MyOpenGLController addOglInitComm: [a objectAtIndex: 1] to: gid from: self];
                   1067:   return 0;
                   1068: }
1.3       takayama 1069: -(void)openGLMeta: (NSString *) cmd to: (int) gid{
                   1070:   MyOpenGLController *oglc;
                   1071:   oglc = [MyOpenGLController getOglWindow: gid];
1.5       takayama 1072:   if (!oglc) {[self printErrorMessage:
                   1073:      [NSString stringWithFormat: @"Invalid gid %d in openGLMeta command %@\n",gid,cmd]]; return; }
1.3       takayama 1074:   if ([cmd hasPrefix: @"meta_showListOfOglComm"]) {
                   1075:     [self showListOfOglComm: gid]; return ;
1.4       takayama 1076:   }else if ([cmd hasPrefix: @"meta_removeAllInit"]) { // longer command must come first, because we use prefix.
                   1077:     [oglc removeAllOfOglInitComm];
                   1078:   }else if ([cmd hasPrefix: @"meta_removeLastInit"]) {
                   1079:     [oglc removeLastOfOglInitComm];
1.3       takayama 1080:   }else if ([cmd hasPrefix: @"meta_removeAll"]) {
                   1081:     [oglc removeAllOfOglComm];
                   1082:   }else if ([cmd hasPrefix: @"meta_removeLast"]) {
                   1083:     [oglc removeLastOfOglComm];
                   1084:   }else{
1.5       takayama 1085:     [self printErrorMessage: [NSString stringWithFormat: @"Unknown OpenGL meta command %@\n",cmd]];
1.3       takayama 1086:   }
                   1087: }
                   1088: -(void) showListOfOglComm: (int) gid {
                   1089:   MyDocument *md;
                   1090:   MyOpenGLController *oglc;
                   1091:   NSMutableArray *comm;
                   1092:   int i,n;
                   1093:   md = self;
                   1094:   oglc = [MyOpenGLController getOglWindow: gid];
                   1095:   if (!oglc) {[self outputErrorString: @"Invalid gid in showListOfOglComm\n"]; return; }
                   1096:   comm = [oglc getListOfOglInitComm];
                   1097:   n = [comm count];
                   1098:   [md outputString: NSLocalizedString(@"OpenGL init commands\n",nil)];
                   1099:   for (i=0; i<n; i++) {
                   1100:     [md outputString: [NSString stringWithFormat: @"%04d: ",i]];
                   1101:     [md outputString: [[comm objectAtIndex: i] toString]];
                   1102:        [md outputString: @"\n"];
                   1103:   }
                   1104:   comm = [oglc getListOfOglComm];
                   1105:   n = [comm count];
                   1106:   [md outputString: NSLocalizedString(@"OpenGL redraw commands\n",nil)];
                   1107:   for (i=0; i<n; i++) {
                   1108:     [md outputString: [NSString stringWithFormat: @"%04d: ",i]];
                   1109:     [md outputString: [[comm objectAtIndex: i] toString]];
                   1110:        [md outputString: @"\n"];
                   1111:   }
                   1112: }
                   1113:
1.1       takayama 1114:
1.2       takayama 1115: -(void) pngActionFor: (NSString *)act {
                   1116:   NSArray *a;
                   1117:   id typesetExpression;
                   1118:   MyOutputWindowController *mowc;
                   1119:   NSString *path;
                   1120:   int n;
                   1121:   a=[act componentsSeparatedByString: @","];
                   1122:   n = [a count];
                   1123:   if (n < 1) {
                   1124:     [self printErrorMessage: @"Invalid format in pngActionFor: \n"];
                   1125:        return;
                   1126:   }
                   1127:   // NSLog(@"%@",a);
                   1128:   if ([[a objectAtIndex: 0]  hasPrefix: @"notAvailable"]) {
                   1129:     [self messageDialog:
1.7       takayama 1130:          NSLocalizedString(@"Typeset the output by TeX is not available. latex and dvipng must be installed.",nil)  with: 0];
1.2       takayama 1131:        prettyPrint = 1; [self setPrettyPrint: nil];
                   1132:        return;
                   1133:   }    else if ([[a objectAtIndex: 0]  compare: @"showFile"] == NSOrderedSame) {
                   1134:     if (n < 2) [self printErrorMessage: @"showFile,filename  filename is missing.\n"];
                   1135:        path = [MyUtil pruneThings: [a objectAtIndex: 1]]; // for buggy componentsSeparatedByString
                   1136:        typesetExpression = [MyUtil attributedStringWithPath: path];
                   1137:        if (typesetExpression) {
                   1138:        if (notebookMode) [textViewIn insertText: typesetExpression];
                   1139:           else {
                   1140:         mowc = [MyOutputWindowController sharedMyOutputWindowController: self];
                   1141:                [mowc insertText: typesetExpression];
                   1142:           }
                   1143:        }
                   1144:        return;
                   1145:   } else {
                   1146:     NSLog(@"pngActionFor: %@\n",act);
                   1147:     [self printErrorMessage: @"Unknown command for pngActionFor:\n"];
                   1148:   }
                   1149: }
                   1150:
1.1       takayama 1151: -(void) setBasicStyle: (id) sender {
                   1152:   notebookMode = 0;
                   1153:   [self updateInterfaceStyleMenu];
                   1154: }
                   1155: -(void) setNotebookStyle: (id) sender {
                   1156:   notebookMode = 1;
                   1157:   [self updateInterfaceStyleMenu];
                   1158:   [self insertInputCell];
                   1159: }
                   1160: -(void) updateInterfaceStyleMenu {
                   1161:   if (!menuItemNotebookMode) return;
                   1162:   if (!menuItemBasicMode) return;
                   1163:   if (notebookMode) {
                   1164:     [menuItemNotebookMode setState: NSOnState];
                   1165:        [menuItemBasicMode setState: NSOffState];
                   1166:   }else        {
                   1167:     [menuItemNotebookMode setState: NSOffState];
                   1168:        [menuItemBasicMode setState: NSOnState];
                   1169:   }
                   1170: }
                   1171: -(void) setEngineRisaAsir: (id) sender {
                   1172:   oxEngine = 0;
                   1173:   [self updateSelectEngineMenu];
                   1174:   [self oxEvaluateString: @"!asir;" withMark: TRUE];
                   1175: }
                   1176: -(void) setEngineKanSm1: (id) sender {
                   1177:   oxEngine = 1;
                   1178:   [self updateSelectEngineMenu];
                   1179:   [self oxEvaluateString: @"!sm1;" withMark: TRUE];
                   1180: }
1.3       takayama 1181: // BUG: update* must be called when the focus is changed to "setState:"
1.1       takayama 1182: -(void) updateSelectEngineMenu {
                   1183:   if (!menuItemRisaAsir) return;
                   1184:   if (!menuItemKanSm1) return;
                   1185:   if (oxEngine == 0) {
                   1186:     [menuItemRisaAsir setState: NSOnState];
                   1187:        [menuItemKanSm1 setState: NSOffState];
                   1188:   }else        if (oxEngine == 1) {
                   1189:     [menuItemRisaAsir setState: NSOffState];
                   1190:        [menuItemKanSm1 setState: NSOnState];
                   1191:   }
                   1192: }
                   1193: -(void) setDebugMyTunnel: (id) sender {
                   1194:   if (debugMyTunnel) {
                   1195:     debugMyTunnel = 0;
                   1196:        if (menuItemOutputDebugMessages) [menuItemOutputDebugMessages setState: NSOffState];
                   1197:   } else {
                   1198:     debugMyTunnel = 1;
                   1199:        if (menuItemOutputDebugMessages) [menuItemOutputDebugMessages setState: NSOnState];
                   1200:   }
                   1201:   [MyUtil setDebugMyUtil];
                   1202: }
1.3       takayama 1203:
                   1204: //BUG: [self setPrettyPrint: nil] or update must be called when focus is changed to "setState:"
1.2       takayama 1205: -(void) setPrettyPrint: (id) sender {
                   1206:   if (prettyPrint) {
                   1207:     prettyPrint = 0;
                   1208:        [self oxEvaluateString: @"!verbatim;" withMark: TRUE];
                   1209:        if (menuItemPrettyPrint) [menuItemPrettyPrint setState: NSOffState];
                   1210:   } else {
                   1211:     prettyPrint = 1;
                   1212:        if (!asir_contrib) [self loadAsirContrib: nil];
                   1213:        [self oxEvaluateString: @"!cfep_png;" withMark: TRUE];
                   1214:        if (menuItemPrettyPrint) [menuItemPrettyPrint setState: NSOnState];
                   1215:   }
                   1216: }
1.4       takayama 1217: -(void) setNoEngine: (id) sender {
                   1218:   if (NoEngine) {
                   1219:     NoEngine = 0;
                   1220:        if (menuItemNoEngine) [menuItemNoEngine setState: NSOffState];
                   1221:   } else {
                   1222:     NoEngine = 1;
                   1223:        if (menuItemNoEngine) [menuItemNoEngine setState: NSOnState];
                   1224:   }
                   1225: }
1.2       takayama 1226:
                   1227: -(void) loadAsirContrib: (id) sender {
                   1228:   NSString *com;
                   1229:   if (inEvaluation) {
                   1230:     [self messageDialog: NSLocalizedString(@"Evaluating...",nil) with: 0];
                   1231:     return;
                   1232:   }
                   1233:   asir_contrib = 1;
                   1234:   com = [@"load(\"" stringByAppendingString: OpenXM_HOME];
                   1235:   com = [com stringByAppendingString: @"/rc/asirrc\")$"];
                   1236:   if (notebookMode) { doInsertNewInputCell=0; [self getContentsOfInputCell]; [self prepareOutputCell];}
                   1237:   [self oxEvaluateString: com withMark: TRUE];
                   1238: }
1.1       takayama 1239: -(void) mytest: (id) sender {
1.2       takayama 1240:   // Add any code here for testing.
                   1241:   id typesetExpression;
                   1242:   typesetExpression = [MyUtil attributedStringWithPath: @"/Users/nobuki/OpenXM_tmp/1/work1.png"];
                   1243:   if (typesetExpression) [textViewIn insertText: typesetExpression];
                   1244:   else NSLog(@"typesetExpression is nil.\n");
                   1245: }
                   1246:
                   1247: -(NSMenuItem *) menuItemLoadLibrary: (int) oxengine {
                   1248:   NSMenuItem *menuItemAsirContrib;
                   1249:   NSMenuItem *menuItemCohom;
                   1250:   NSMenu *submenuLoadLibrary = [[[NSMenu alloc] init] autorelease];
                   1251:   switch(oxengine) {
                   1252:   case 0: /* asir */
                   1253:     menuItemAsirContrib = [[[NSMenuItem alloc] init] autorelease];
                   1254:        [menuItemAsirContrib setTitle: NSLocalizedString(@"Load asir-contrib",nil)];
                   1255:        [menuItemAsirContrib setAction: @selector(loadAsirContrib:)];
                   1256:        [menuItemAsirContrib setTarget: [[NSApp mainWindow] document]];
                   1257:        [submenuLoadLibrary addItem: menuItemAsirContrib];
                   1258:        break;
                   1259:   case 1: /* sm1 */
                   1260:     menuItemCohom = [[[NSMenuItem alloc] init] autorelease];
                   1261:        [menuItemCohom setTitle: NSLocalizedString(@"Load cohom.sm1",nil)];
                   1262:        [menuItemCohom setAction: @selector(loadCohom:)];
                   1263:        [menuItemCohom setTarget: [[NSApp mainWindow] document]];
                   1264:        [submenuLoadLibrary addItem: menuItemCohom];
                   1265:     break;
                   1266:   default:
                   1267:     break;
                   1268:   }
                   1269:
                   1270:   NSMenuItem *menuItemLoadLibrary = [[[NSMenuItem alloc] init] autorelease];
                   1271:   [menuItemLoadLibrary setTitle: NSLocalizedString(@"Load library",nil)];
                   1272:   [menuItemLoadLibrary setSubmenu: submenuLoadLibrary];
                   1273:   return menuItemLoadLibrary;
1.1       takayama 1274: }
                   1275: -(void) addMenuExec {
                   1276:   static int done=0;
                   1277:   NSMenu *menuItem;
                   1278:   NSMenu *menuExec;
                   1279:   NSMenuItem *menuItemEvaluate;
                   1280:   NSMenuItem *menuItemInterrupt;
                   1281:   NSMenuItem *menuItemInterfaceStyle;
                   1282:   NSMenuItem *menuItemSelectEngine;
                   1283:   NSMenuItem *menuItemGotoNextError;
                   1284:   NSMenuItem *menuItemForTest;
1.2       takayama 1285:   NSMenuItem *menuItemLoadLibrary;
1.1       takayama 1286:   if (done) return;
                   1287:   done = 1;
                   1288:   // oxEvalute
                   1289:   menuExec = [[[NSMenu alloc] init] autorelease];
                   1290:   [menuExec setTitle: NSLocalizedString(@"Execution",nil)];
                   1291:   menuItemEvaluate = [[[NSMenuItem alloc] init] autorelease];
                   1292:   [menuItemEvaluate setTitle: NSLocalizedString(@"Evaluate",nil)];
                   1293:   [menuItemEvaluate setAction: @selector(oxEvaluate:)];
                   1294:   [menuItemEvaluate setTarget: [[NSApp mainWindow] document]];
                   1295:   [menuItemEvaluate setKeyEquivalentModifierMask: NSCommandKeyMask];
                   1296:   [menuItemEvaluate setKeyEquivalent: @"\n"];
                   1297:   [menuExec addItem: menuItemEvaluate];
                   1298:   // oxInterrupt
                   1299:   menuItemInterrupt = [[[NSMenuItem alloc] init] autorelease];
                   1300:   [menuItemInterrupt setTitle: NSLocalizedString(@"Interrupt",nil)];
                   1301:   [menuItemInterrupt setAction: @selector(oxInterrupt:)];
                   1302:   [menuItemInterrupt setTarget: [[NSApp mainWindow] document]];  // do not use self.
                   1303:   [menuExec addItem: menuItemInterrupt];
                   1304:
                   1305:   // gotoNextError
                   1306:   menuItemGotoNextError = [[[NSMenuItem alloc] init] autorelease];
                   1307:   [menuItemGotoNextError setTitle: NSLocalizedString(@"Next error line",nil)];
                   1308:   [menuItemGotoNextError setAction: @selector(gotoNextError:)];
                   1309:   [menuItemGotoNextError setTarget: [[NSApp mainWindow] document]];
                   1310:   [menuExec addItem: menuItemGotoNextError];
                   1311:
1.2       takayama 1312:   // pretty print
1.3       takayama 1313:   menuItemPrettyPrint = [[[NSMenuItem alloc] init] autorelease];  [menuItemPrettyPrint retain]; // it is the static variable.
1.2       takayama 1314:   [menuItemPrettyPrint setTitle: NSLocalizedString(@"Typeset the output by TeX",nil)];
                   1315:   [menuItemPrettyPrint setAction: @selector(setPrettyPrint:)];
                   1316:   [menuItemPrettyPrint setTarget: [[NSApp mainWindow] document]];
                   1317:   [menuExec addItem: menuItemPrettyPrint];
                   1318:
                   1319:   // loadLibrary
                   1320:   [menuExec addItem: [self menuItemLoadLibrary: oxEngine]]; //bug. dynamic change.
                   1321:
1.1       takayama 1322:   // interface style
                   1323:   NSMenu *submenuInterfaceItem = [[[NSMenu alloc] init] autorelease];
                   1324:     // basic-like
                   1325:   NSMenuItem *menuItemBasicLike = [[[NSMenuItem alloc] init] autorelease];
                   1326:   [menuItemBasicLike setTitle: NSLocalizedString(@"BASIC-like",nil)];
                   1327:   [menuItemBasicLike setAction: @selector(setBasicStyle:)];
                   1328:   [menuItemBasicLike setTarget: [[NSApp mainWindow] document]];
1.3       takayama 1329:   menuItemBasicMode = menuItemBasicLike;  [menuItemBasicMode retain];
1.1       takayama 1330:   [submenuInterfaceItem addItem: menuItemBasicLike];
                   1331:     // notebook-like
                   1332:   NSMenuItem *menuItemNotebookLike = [[[NSMenuItem alloc] init] autorelease];
                   1333:   [menuItemNotebookLike setTitle: NSLocalizedString(@"Notebook-like",nil)];
                   1334:   [menuItemNotebookLike setAction: @selector(setNotebookStyle:)];
                   1335:   [menuItemNotebookLike setTarget: [[NSApp mainWindow] document]];
1.3       takayama 1336:   menuItemNotebookMode = menuItemNotebookLike; [menuItemNotebookMode retain];
1.1       takayama 1337:   [submenuInterfaceItem addItem: menuItemNotebookLike];
                   1338:
                   1339:   menuItemInterfaceStyle = [[[NSMenuItem alloc] init] autorelease];
                   1340:   [menuItemInterfaceStyle setTitle: NSLocalizedString(@"Interface style",nil)];
                   1341:   [menuItemInterfaceStyle setSubmenu: submenuInterfaceItem];
                   1342:   [menuExec addItem: menuItemInterfaceStyle];
                   1343:   [self updateInterfaceStyleMenu];
                   1344:
                   1345:     // select engine
                   1346:   NSMenu *submenuSelectEngineItem = [[[NSMenu alloc] init] autorelease];
                   1347:     // asir
1.3       takayama 1348:   menuItemRisaAsir = [[[NSMenuItem alloc] init] autorelease];  [menuItemRisaAsir retain];
1.1       takayama 1349:   [menuItemRisaAsir setTitle: NSLocalizedString(@"Risa/Asir",nil)];
                   1350:   [menuItemRisaAsir setAction: @selector(setEngineRisaAsir:)];
                   1351:   [menuItemRisaAsir setTarget: [[NSApp mainWindow] document]];
                   1352:   [submenuSelectEngineItem addItem: menuItemRisaAsir];
                   1353:     // notebook-like
1.3       takayama 1354:   menuItemKanSm1 = [[[NSMenuItem alloc] init] autorelease];  [menuItemKanSm1 retain];
1.1       takayama 1355:   [menuItemKanSm1 setTitle: NSLocalizedString(@"Kan/sm1",nil)];
                   1356:   [menuItemKanSm1 setAction: @selector(setEngineKanSm1:)];
                   1357:   [menuItemKanSm1 setTarget: [[NSApp mainWindow] document]];
                   1358:   [submenuSelectEngineItem addItem: menuItemKanSm1];
                   1359:
                   1360:   menuItemSelectEngine = [[[NSMenuItem alloc] init] autorelease];
                   1361:   [menuItemSelectEngine setTitle: NSLocalizedString(@"Select engine",nil)];
                   1362:   [menuItemSelectEngine setSubmenu: submenuSelectEngineItem];
                   1363:   [menuExec addItem: menuItemSelectEngine];
                   1364:   [self updateSelectEngineMenu];
                   1365:
1.4       takayama 1366:   // outputDebugMessage
                   1367:   menuItemOutputDebugMessages = [[[NSMenuItem alloc] init] autorelease]; [menuItemOutputDebugMessages retain];
                   1368:   [menuItemOutputDebugMessages setTitle: NSLocalizedString(@"Output debug messages",nil)];
                   1369:   [menuItemOutputDebugMessages setAction: @selector(setDebugMyTunnel:)];
                   1370:   [menuItemOutputDebugMessages setTarget: [[NSApp mainWindow] document]];
                   1371:   [menuExec addItem: menuItemOutputDebugMessages];
                   1372:
                   1373:   // NoEngine
                   1374:   menuItemNoEngine = [[[NSMenuItem alloc] init] autorelease];  [menuItemNoEngine retain]; // it is the static variable.
                   1375:   [menuItemNoEngine setTitle: NSLocalizedString(@"Do not start engine at startup",nil)];
                   1376:   [menuItemNoEngine setAction: @selector(setNoEngine:)];
                   1377:   [menuItemNoEngine setTarget: [[NSApp mainWindow] document]];
                   1378:   [menuExec addItem: menuItemNoEngine];
1.1       takayama 1379:
                   1380:   // test
                   1381:   menuItemForTest = [[[NSMenuItem alloc] init] autorelease];
                   1382:   [menuItemForTest setTitle: NSLocalizedString(@"For test",nil)];
                   1383:   [menuItemForTest setAction: @selector(mytest:)];
                   1384:   [menuItemForTest setTarget: [[NSApp mainWindow] document]];
                   1385:   [menuExec addItem: menuItemForTest];
                   1386:
                   1387:   menuItem = [[[NSMenuItem alloc] init] autorelease];
                   1388:   [[NSApp mainMenu] insertItem: menuItem atIndex: 4];
                   1389:   [menuItem setSubmenu: menuExec];
                   1390: }
                   1391:
                   1392: -(void) insertInputCell {
                   1393:   NSRange r;
                   1394:   NSString *ic;
                   1395:   unichar uu[2];
                   1396:   uu[0] = BEGIN_INPUT_CELL; uu[1] = END_INPUT_CELL;
                   1397:   r = [textViewIn selectedRange]; r.length=0;
                   1398:   ic = [NSString stringWithCharacters: uu length: 2];
                   1399:   // NSLog(@"insertInputCell: r.location=%d, r.length=%d, %@\n",r.location,r.length,ic);
                   1400:   [textViewIn replaceCharactersInRange: r withString: ic];
                   1401:   r.location = r.location+1; r.length = 0;
                   1402:   [textViewIn setSelectedRange: r ];
                   1403:   r.location = r.location-1; r.length = 2;
                   1404:   [textViewIn setTextColor: [NSColor blackColor] range: r];
                   1405: }
                   1406: -(NSString *) getContentsOfInputCell {
                   1407:     int start,end,i,n;
                   1408:        NSString *cmd0;
                   1409:        NSRange r;
                   1410:     cmd0 = [textViewIn string];
                   1411:        start=0; end = n = [cmd0 length]; if (end > 0) end--;
                   1412:     r = [textViewIn selectedRange];
                   1413:        if (r.location < n) i = r.location; else i = n-1;
                   1414:        if (i < 0) i=0;
                   1415:        for (; i>=0; i--) {
                   1416:          if ([cmd0 characterAtIndex: i] == BEGIN_INPUT_CELL) {
                   1417:            start = i+1; break;
                   1418:          }
                   1419:        }
                   1420:        for (i=start; i<n; i++) {
                   1421:          if ([cmd0 characterAtIndex: i] == END_INPUT_CELL) {
                   1422:            end = i-1; break;
                   1423:          }
                   1424:        }
                   1425:        // NSLog(@"start=%d, end=%d\n",start,end);
                   1426:        r.location = start; r.length = end-start+1;
                   1427:        if (r.length > 0) {
                   1428:                cmd0= [cmd0 substringWithRange: r];
                   1429:        }else{
                   1430:            cmd0 = @"";
                   1431:        }
                   1432:        if (end+2 <= n) r.location=end+2;
                   1433:        r.length = 0;
                   1434:        [textViewIn setSelectedRange: r];
                   1435:     return cmd0;
                   1436: }
                   1437: // return 1 if there is the next inputCell
                   1438: -(int) getOutOfOutputCell {
                   1439:     int start,end,i,n;
                   1440:        NSString *cmd0;
                   1441:        NSRange r;
                   1442:     cmd0 = [textViewIn string];
                   1443:        n = [cmd0 length];
                   1444:     r = [textViewIn selectedRange];
                   1445:        start = r.location;
                   1446:        // NSLog(@"r.location=%d, r.length=%d\n",r.location,r.length);
                   1447:        if (r.location < n) i = r.location; else i = n-1;
                   1448:        if (i>0) i--;
                   1449:        for (; i<n; i++) {
                   1450:          if ([cmd0 characterAtIndex: i] == END_OUTPUT_CELL) {
                   1451:            start = i+1; break;
                   1452:          }else if ([cmd0 characterAtIndex: i] == BEGIN_INPUT_CELL) {
                   1453:            r.location = i+1; r.length=0;
                   1454:                [textViewIn setSelectedRange: r];  [textViewIn scrollRangeToVisible: r];
                   1455:                return 1;
                   1456:          }else if ([cmd0 characterAtIndex: i] == END_INPUT_CELL) {
                   1457:            r.location = i-1; r.length=0;
                   1458:                [textViewIn setSelectedRange: r];  [textViewIn scrollRangeToVisible: r];
                   1459:                return 1;
                   1460:          }
                   1461:        }
                   1462:        r.location = start; r.length = 0;
                   1463:        [textViewIn setSelectedRange: r];
                   1464:
                   1465:        for (i = start; i<n; i++) {
                   1466:       // Try to find the next input cell.
                   1467:          if ([cmd0 characterAtIndex: i] == BEGIN_INPUT_CELL) {
                   1468:            r.location = i+1; r.length = 0;
                   1469:                [textViewIn setSelectedRange: r];  [textViewIn scrollRangeToVisible: r];
                   1470:                return 1;
                   1471:          }else if ([cmd0 characterAtIndex: i] == END_INPUT_CELL) {
                   1472:            // We are inside an input cell.
                   1473:            r.location = i-1; r.length = 0;
                   1474:                [textViewIn setSelectedRange: r]; [textViewIn scrollRangeToVisible: r];
                   1475:                return 1;
                   1476:          }
                   1477:        }
                   1478:        return 0;
                   1479: }
                   1480: -(void) prepareOutputCell {
                   1481:   int start,end,i,j,n,m;
                   1482:   NSString *cmd0;
                   1483:   NSString *ic;
                   1484:   unichar uu[7];
                   1485:        NSRange r;
                   1486:        start = -1; end = -1;
                   1487:     cmd0 = [textViewIn string];
                   1488:        n = [cmd0 length];
                   1489:     r = [textViewIn selectedRange];
                   1490:        i = r.location;
                   1491:        if (i < 0) i = 0;
                   1492:        if (i >= n) i = n-1;
                   1493:        for (; i<n; i++) {
                   1494:          if ([cmd0 characterAtIndex: i] == BEGIN_OUTPUT_CELL) {
                   1495:            start = i;
                   1496:                for (j=i; j>=0; j--) {
                   1497:                  if ([cmd0 characterAtIndex: j] <= ' ') {
                   1498:                    start = j;
                   1499:                  }     else {
                   1500:                    if (start>0) start--;
                   1501:                    break;
                   1502:              }
                   1503:                }
                   1504:                break;
                   1505:          }else if ([cmd0 characterAtIndex: i] == BEGIN_INPUT_CELL) {
                   1506:            start = i-1;
                   1507:                if (start < 0) start = 0;
                   1508:                end = -2;
                   1509:                break;
                   1510:          }
                   1511:        }
                   1512:        if (end == -2) {
                   1513:          r.location = start; r.length=0;
                   1514:        }else{
                   1515:          end = start;
                   1516:          i = start; if (i < 0) i = 0;
                   1517:          for (; i<n; i++) {
                   1518:            if ([cmd0 characterAtIndex: i] == END_OUTPUT_CELL) {
                   1519:              end = i; break;
                   1520:            }
                   1521:          }
                   1522:       if ((start == -1) || (end == -1)) {
                   1523:            r.location = n; r.length=0;
                   1524:       }else{
                   1525:         r.location = start; r.length = end-start+1;
                   1526:          }
                   1527:        }
                   1528:     [textViewIn replaceCharactersInRange: r withString: @""];
                   1529:
                   1530:   uu[0] = '\n';
                   1531:   uu[1] = BEGIN_OUTPUT_CELL; uu[2] = END_OUTPUT_CELL;
                   1532:   m = 3;
                   1533:   // If there is no next input cell, add a new one.
                   1534:   for (i=r.location; i<n; i++) {
                   1535:     if ([cmd0 characterAtIndex:i] == BEGIN_INPUT_CELL) {
                   1536:       break;
                   1537:        }
                   1538:   }
                   1539:   if ((i == n) || (r.location >= n)) {
                   1540:          uu[3] = '\n'; uu[4] = BEGIN_INPUT_CELL; uu[5] = END_INPUT_CELL; m=6;
                   1541:   }
                   1542:   // NSLog(@"prepareOutputCell start=%d, length=%d, m=%d\n",start,r.length,m);
                   1543:   r.length = 0;
                   1544:   ic = [NSString stringWithCharacters: uu length: m];
                   1545:   [textViewIn replaceCharactersInRange: r withString: ic];
                   1546:   r.location = r.location+2; r.length = 0;
                   1547:   [textViewIn setSelectedRange: r ];
                   1548: }
                   1549: @end

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