loncom/xml/londefdef.pm - view

File: [LON-CAPA] / loncom / xml / londefdef.pm
Revision 1.248: download - view: text, annotated - select for diffs
Mon Dec 27 14:06:32 2004 UTC (19 years, 5 months ago) by foxr
Branches: MAIN
CVS tags: HEAD

- Bug 3602 - attempt to address image alignment.  I don't think there are
any perfect solutions for horizontal alignment, however I've offered the
user a choice between two evils by adding the TeXwrap element to the
<IMG> tag :
   TeXwrap='parbox' attempts to use a parbox and newlines. This
results in very little wrapping but tends to ensure there's nothing on top
of the picture.
   TeXwrap = 'parpic' attempts to use a parpic to get the text to wrap around
the picture better.. however if the paragraph is too short, the next para will
fill into the picture.. and even worse, the parpic seems not to honor the end
of page very well.

parbox is the default because it appears to be the safest at this point.

1: # The LearningOnline Network with CAPA 2: # Tags Default Definition Module 3: # 4: # $Id: londefdef.pm,v 1.248 2004/12/27 14:06:32 foxr Exp $ 5: # 6: # 7: # Copyright Michigan State University Board of Trustees 8: # 9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 10: # 11: # LON-CAPA is free software; you can redistribute it and/or modify 12: # it under the terms of the GNU General Public License as published by 13: # the Free Software Foundation; either version 2 of the License, or 14: # (at your option) any later version. 15: # 16: # LON-CAPA is distributed in the hope that it will be useful, 17: # but WITHOUT ANY WARRANTY; without even the implied warranty of 18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19: # GNU General Public License for more details. 20: # 21: # You should have received a copy of the GNU General Public License 22: # along with LON-CAPA; if not, write to the Free Software 23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 24: # 25: # /home/httpd/html/adm/gpl.txt 26: # 27: # http://www.lon-capa.org/ 28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson. 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into 30: # binary executable programs or libraries distributed by the 31: # Michigan State University (the "Licensee"), but any binaries so 32: # distributed are hereby licensed only for use in the context 33: # of a program or computational system for which the Licensee is the 34: # primary author or distributor, and which performs substantial 35: # additional tasks beyond the translation of (La)TeX into HTML. 36: # The C source of the Code may not be distributed by the Licensee 37: # to any other parties under any circumstances. 38: # 39: # 40: # last modified 06/26/00 by Alexander Sakharuk 41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer 42: # 01/18 Alex Sakharuk 43: 44: package Apache::londefdef; 45: 46: use Apache::lonnet(); 47: use strict; 48: use Apache::lonxml; 49: use Apache::File(); 50: use Image::Magick; 51: use Apache::lonmenu(); 52: use Apache::lonmeta(); 53: use Apache::Constants qw(:common); 54: 55: 56: BEGIN { 57: 58: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput')); 59: 60: } 61: 62: sub initialize_londefdef { 63: $Apache::londefdef::TD_redirection=0; 64: @Apache::londefdef::table = (); 65: $Apache::londefdef::select=0; 66: undef(@Apache::londefdef::description); 67: @Apache::londefdef::DD=(0); 68: @Apache::londefdef::DT=(0); 69: @Apache::londefdef::seenDT=(0); 70: $Apache::londefdef::list_index=0; 71: } 72: 73: #======================= TAG SUBROUTINES ===================== 74: #-- <output> 75: sub start_output { 76: my ($target) = @_; 77: if ($target eq 'meta') { $Apache::lonxml::metamode--; } 78: return ''; 79: } 80: sub end_output { 81: my ($target) = @_; 82: if ($target eq 'meta') { $Apache::lonxml::metamode++; } 83: return ''; 84: } 85: #-- <m> tag 86: sub start_m { 87: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; 88: my $currentstring = ''; 89: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); 90: if ($target eq 'web' || $target eq 'analyze') { 91: $inside ='\\documentstyle{article}'.$inside; 92: &Apache::lonxml::debug("M is starting with:$inside:"); 93: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); 94: if ($eval eq 'on') { 95: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]); 96: #&Apache::lonxml::debug("M is evaulated to:$inside:"); 97: } 98: $currentstring = &Apache::lontexconvert::converted(\$inside); 99: if ($Apache::lontexconvert::errorstring) { 100: &Apache::lonxml::warning("tth error: ". 101: $Apache::lontexconvert::errorstring); 102: $Apache::lontexconvert::errorstring=''; 103: } 104: #&Apache::lonxml::debug("M is ends with:$currentstring:"); 105: $Apache::lonxml::post_evaluate=0; 106: } elsif ($target eq 'tex') { 107: $currentstring = $inside; 108: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); 109: if ($eval eq 'on') { 110: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]); 111: } 112: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';} 113: $Apache::lonxml::post_evaluate=0; 114: } 115: return $currentstring; 116: } 117: 118: sub end_m { 119: my ($target,$token) = @_; 120: my $currentstring = ''; 121: if ($target eq 'tex') { 122: $currentstring = ""; 123: } 124: return $currentstring; 125: } 126: 127: sub start_tthoption { 128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 129: my $result; 130: if ($target eq 'web') { 131: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser); 132: $inside=~s/^\s*//; 133: if ($ENV{'browser.mathml'}) { 134: &tth::ttmoptions($inside); 135: } else { 136: &tth::tthoptions($inside); 137: } 138: } 139: return $result; 140: } 141: 142: sub end_tthoption { 143: my ($target,$token) = @_; 144: my $result; 145: return $result; 146: } 147: 148: #-- <html> tag (end tag optional) 149: sub start_html { 150: my ($target,$token) = @_; 151: my $currentstring = ''; 152: my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'}; 153: &Apache::lontexconvert::init_tth(); 154: if ($target eq 'web' || $target eq 'edit') { 155: $currentstring = &Apache::lonxml::xmlbegin(); 156: } elsif ($target eq 'tex') { 157: @Apache::londefdef::table = (); 158: $currentstring .= '\documentclass[letterpaper]{article}'; 159: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';} 160: $currentstring .= '\newcommand{\keephidden}[1]{}'. 161: '\renewcommand{\deg}{$^{\circ}$}'. 162: '\usepackage{longtable}'. 163: '\usepackage{textcomp}'. 164: '\usepackage{makeidx}'. 165: '\usepackage[dvips]{graphicx}'. 166: '\usepackage{picins}'. 167: '\usepackage{epsfig}'. 168: '\usepackage{calc}'. 169: '\usepackage{amsmath}'. 170: '\usepackage{amssymb}'. 171: '\usepackage{amsfonts}'. 172: '\usepackage{amsthm}'. 173: '\usepackage{amscd}'. 174: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'. 175: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}'; 176: } 177: return $currentstring; 178: } 179: 180: sub end_html { 181: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 182: my $currentstring = ''; 183: if ($target eq 'web') { 184: $currentstring = &Apache::lonxml::xmlend($target,$parser); 185: } 186: return $currentstring; 187: } 188: 189: #-- <head> tag (end tag optional) 190: sub start_head { 191: my ($target,$token) = @_; 192: my $currentstring = ''; 193: if ($target eq 'web') { 194: $currentstring = $token->[4].&Apache::lonxml::fontsettings(); 195: } 196: return $currentstring; 197: } 198: 199: sub end_head { 200: my ($target,$token) = @_; 201: my $currentstring = ''; 202: if ($target eq 'web' && $ENV{'request.state'} eq 'published') { 203: $currentstring = &Apache::lonmenu::registerurl(undef,$target). 204: $token->[2]; 205: } 206: return $currentstring; 207: } 208: 209: #-- <map> tag (end tag required) 210: sub start_map { 211: my ($target,$token) = @_; 212: my $currentstring = ''; 213: if ($target eq 'web') { 214: $currentstring = $token->[4]; 215: } 216: return $currentstring; 217: } 218: 219: sub end_map { 220: my ($target,$token) = @_; 221: my $currentstring = ''; 222: if ($target eq 'web') { 223: $currentstring = $token->[2]; 224: } 225: return $currentstring; 226: } 227: 228: #-- <select> tag (end tag required) 229: sub start_select { 230: my ($target,$token) = @_; 231: my $currentstring = ''; 232: if ($target eq 'web') { 233: $currentstring = $token->[4]; 234: } elsif ($target eq 'tex') { 235: $Apache::londefdef::select=0; 236: } 237: return $currentstring; 238: } 239: 240: sub end_select { 241: my ($target,$token) = @_; 242: my $currentstring = ''; 243: if ($target eq 'web') { 244: $currentstring = $token->[2]; 245: } 246: return $currentstring; 247: } 248: 249: #-- <option> tag (end tag optional) 250: sub start_option { 251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 252: my $currentstring = ''; 253: if ($target eq 'web') { 254: $currentstring = $token->[4]; 255: } elsif ($target eq 'tex') { 256: $Apache::londefdef::select++; 257: if ($Apache::londefdef::select == 1) { 258: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{'; 259: } else { 260: $currentstring='\keephidden{'; 261: } 262: } 263: return $currentstring; 264: } 265: 266: sub end_option { 267: my ($target,$token) = @_; 268: my $currentstring = ''; 269: if ($target eq 'web') { 270: $currentstring = $token->[2]; 271: } elsif ($target eq 'tex') { 272: $currentstring='}'; 273: } 274: return $currentstring; 275: } 276: 277: #-- <input> tag (end tag forbidden) 278: sub start_input { 279: my ($target,$token) = @_; 280: my $currentstring = ''; 281: if ($target eq 'web') { 282: $currentstring = $token->[4]; 283: } 284: return $currentstring; 285: } 286: 287: sub end_input { 288: my ($target,$token) = @_; 289: my $currentstring = ''; 290: if ($target eq 'web') { 291: $currentstring = $token->[2]; 292: } 293: return $currentstring; 294: } 295: 296: #-- <textarea> tag (end tag required) 297: sub start_textarea { 298: my ($target,$token) = @_; 299: my $currentstring = ''; 300: if ($target eq 'web') { 301: $currentstring = $token->[4]; 302: } 303: return $currentstring; 304: } 305: 306: sub end_textarea { 307: my ($target,$token) = @_; 308: my $currentstring = ''; 309: if ($target eq 'web') { 310: $currentstring = $token->[2]; 311: } 312: return $currentstring; 313: } 314: 315: #-- <form> tag (end tag required) 316: sub start_form { 317: my ($target,$token) = @_; 318: my $currentstring = ''; 319: if ($target eq 'web') { 320: $currentstring = $token->[4]; 321: } 322: return $currentstring; 323: } 324: 325: sub end_form { 326: my ($target,$token) = @_; 327: my $currentstring = ''; 328: if ($target eq 'web') { 329: $currentstring = $token->[2]; 330: } 331: return $currentstring; 332: } 333: 334: #-- <title> tag (end tag required) 335: sub start_title { 336: my ($target,$token) = @_; 337: my $currentstring = ''; 338: if ($target eq 'web') { 339: $currentstring = $token->[4]; 340: } elsif ($target eq 'tex') { 341: $currentstring .= '\keephidden{Title of the document: ' 342: } 343: if ($target eq 'meta') { 344: $currentstring='<title>'; 345: &start_output($target); 346: } 347: return $currentstring; 348: } 349: 350: sub end_title { 351: my ($target,$token) = @_; 352: my $currentstring = ''; 353: if ($target eq 'web') { 354: $currentstring = $token->[2]; 355: } elsif ($target eq 'tex') { 356: $currentstring .= '}'; 357: } 358: if ($target eq 'meta') { 359: &end_output($target); 360: $currentstring='</title>'; 361: } 362: return $currentstring; 363: } 364: 365: #-- <meta> tag (end tag forbidden) 366: sub start_meta { 367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 368: my $currentstring = ''; 369: if ($target eq 'web') { 370: my $args=''; 371: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } 372: if ($args eq '') { 373: &Apache::lonxml::get_all_text("/meta",$parser); 374: } else { 375: $currentstring = $token->[4]; 376: } 377: } elsif ($target eq 'meta') { 378: unless (&Apache::lonxml::get_param 379: ('http-equiv',$parstack,$safeeval,undef,1)) { 380: my $name=$token->[2]->{'name'}; 381: $name=~tr/A-Z/a-z/; 382: $name=~s/\s/\_/gs; 383: $name=~s/\W//gs; 384: if ($name) { 385: $currentstring='<'.$name; 386: my $display=&Apache::lonxml::get_param 387: ('display',$parstack,$safeeval,undef,1); 388: if ($display) { 389: $display=~s/\"/\'/g; 390: $currentstring.=' display="'.$display.'"'; 391: } 392: $currentstring.='>'. 393: &Apache::lonxml::get_param 394: ('content',$parstack,$safeeval,undef,1). 395: '</'.$name.'>'; 396: } 397: my $display=&Apache::lonxml::get_param 398: ('display',$parstack,$safeeval,undef,1); 399: if ($display) { 400: $display=&HTML::Entities::encode($display,'<>&"'); 401: $currentstring.='<'.$name.'.display>'.$display. 402: '</'.$name.'.display>'; 403: } 404: } 405: } elsif ($target eq 'tex') { 406: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval); 407: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); 408: if ((not defined $content) && (not defined $name)) { 409: &Apache::lonxml::startredirection(); 410: } 411: } 412: return $currentstring; 413: } 414: 415: sub end_meta { 416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 417: my $currentstring = ''; 418: if ($target eq 'web') { 419: my $args=''; 420: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } 421: if ($args ne '') { 422: $currentstring = $token->[4]; 423: } 424: } elsif ($target eq 'tex') { 425: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval); 426: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); 427: if ((not defined $content) && (not defined $name)) { 428: &Apache::lonxml::endredirection(); 429: } 430: } 431: return $currentstring; 432: } 433: 434: # accessrule 435: sub start_accessrule { 436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 437: my $currentstring = ''; 438: my $eff=&Apache::lonxml::get_param 439: ('effect',$parstack,$safeeval,undef,1); 440: my $realm=&Apache::lonxml::get_param 441: ('realm',$parstack,$safeeval,undef,1); 442: my $role=&Apache::lonxml::get_param 443: ('role',$parstack,$safeeval,undef,1); 444: $realm=~s/\s+//g; 445: $realm=~s/\//\_/g; 446: $realm=~s/^\_//; 447: $realm=~s/\W/\;/g; 448: $role=~s/\s+//g; 449: $role=~s/\//\_/g; 450: $role=~s/\W/\;/g; 451: if ($target eq 'web') { 452: my $args=''; 453: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } 454: if ($args eq '') { 455: &Apache::lonxml::get_all_text("/accessrule",$parser); 456: } else { 457: $currentstring = $token->[4]; 458: } 459: } 460: if ($target eq 'meta') { 461: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>'; 462: } 463: return $currentstring; 464: } 465: 466: sub end_accessrule { 467: my ($target,$token,$tagstack,$parstack,$parser) = @_; 468: my $currentstring = ''; 469: if ($target eq 'web') { 470: my $args=''; 471: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } 472: if ($args ne '') { 473: $currentstring = $token->[4]; 474: } 475: } 476: return $currentstring; 477: } 478: 479: #-- <body> tag (end tag required) 480: sub start_body { 481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 482: my $currentstring = ''; 483: 484: if ($target eq 'web') { 485: if ($Apache::lonhomework::parsing_a_problem) { 486: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems."); 487: return ''; 488: } 489: if (!$Apache::lonxml::registered && 490: $ENV{'request.state'} eq 'published') { 491: $currentstring.='<head>'. 492: &Apache::lonmenu::registerurl(undef,$target).'</head>'; 493: } 494: # Accessibility 495: if ($ENV{'browser.imagesuppress'} eq 'on') { 496: delete($token->[2]->{'background'}); 497: } 498: if ($ENV{'browser.fontenhance'} eq 'on') { 499: my $style=''; 500: foreach my $key (keys(%{$token->[2]})) { 501: if ($key =~ /^style$/i) { 502: $style.=$token->[2]->{$key}.';'; 503: delete($token->[2]->{$key}); 504: } 505: } 506: $token->[2]->{'style'}=$style.'; font-size: x-large;'; 507: } 508: if ($ENV{'browser.blackwhite'} eq 'on') { 509: delete($token->[2]->{'font'}); 510: delete($token->[2]->{'link'}); 511: delete($token->[2]->{'alink'}); 512: delete($token->[2]->{'vlink'}); 513: delete($token->[2]->{'bgcolor'}); 514: delete($token->[2]->{'background'}); 515: } 516: # Overload loads 517: my $onLoad=''; 518: foreach my $key (keys(%{$token->[2]})) { 519: if ($key =~ /^onload$/i) { 520: $onLoad.=$token->[2]->{$key}.';'; 521: delete($token->[2]->{$key}); 522: } 523: } 524: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad; 525: my $onUnload=''; 526: foreach my $key (keys(%{$token->[2]})) { 527: if ($key =~ /^onunload$/i) { 528: $onUnload.=$token->[2]->{$key}.';'; 529: delete($token->[2]->{$key}); 530: } 531: } 532: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents(). 533: ';'.$onUnload; 534: 535: if ($ENV{'request.state'} ne 'construct') { 536: $currentstring .= '<'.$token->[1]; 537: } 538: foreach (keys %{$token->[2]}) { 539: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"'; 540: } 541: if ($ENV{'request.state'} ne 'construct') { 542: $currentstring.='>'; 543: } 544: if ($ENV{'request.state'} ne 'published') { 545: my $remote=($ENV{'environment.remote'} ne 'off'); 546: $currentstring=&Apache::loncommon::bodytag(undef,undef, 547: $currentstring,$remote); 548: $currentstring.=(<<EDITBUTTON); 549: <form method="post"> 550: <input type="submit" name="editmode" accesskey="e" value="Edit" /> 551: </form> 552: EDITBUTTON 553: } else { 554: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1); 555: } 556: $currentstring.=&Apache::lonxml::message_location(); 557: } elsif ($target eq 'tex') { 558: $currentstring = '\begin{document}'; 559: } 560: return $currentstring; 561: } 562: 563: sub end_body { 564: my ($target,$token) = @_; 565: my $currentstring = ''; 566: if ($target eq 'web') { 567: $currentstring = $token->[2]; 568: } elsif ($target eq 'tex') { 569: $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}'; 570: } 571: return $currentstring; 572: } 573: 574: #-- <center> tag (end tag required) 575: sub start_center { 576: my ($target,$token) = @_; 577: my $currentstring = ''; 578: if ($target eq 'web') { 579: $currentstring = $token->[4]; 580: } elsif ($target eq 'tex') { 581: $currentstring = '\begin{center}'; 582: } 583: return $currentstring; 584: } 585: 586: sub end_center { 587: my ($target,$token) = @_; 588: my $currentstring = ''; 589: if ($target eq 'web') { 590: $currentstring = $token->[2]; 591: } elsif ($target eq 'tex') { 592: $currentstring = '\end{center}'; 593: } 594: return $currentstring; 595: } 596: 597: #-- <b> tag (end tag required) 598: sub start_b { 599: my ($target,$token) = @_; 600: my $currentstring = ''; 601: if ($target eq 'web') { 602: $currentstring = $token->[4]; 603: } elsif ($target eq 'tex') { 604: $currentstring = '\textbf{'; 605: } 606: return $currentstring; 607: } 608: 609: sub end_b { 610: my ($target,$token) = @_; 611: my $currentstring = ''; 612: if ($target eq 'web') { 613: $currentstring = $token->[2]; 614: } elsif ($target eq 'tex') { 615: $currentstring = '}'; 616: } 617: return $currentstring; 618: } 619: 620: #-- <strong> tag (end tag required) 621: sub start_strong { 622: my ($target,$token) = @_; 623: my $currentstring = ''; 624: if ($target eq 'web') { 625: $currentstring = $token->[4]; 626: } elsif ($target eq 'tex') { 627: $currentstring = '\textbf{'; 628: } 629: return $currentstring; 630: } 631: 632: sub end_strong { 633: my ($target,$token) = @_; 634: my $currentstring = ''; 635: if ($target eq 'web') { 636: $currentstring = $token->[2]; 637: } elsif ($target eq 'tex') { 638: $currentstring = '}'; 639: } 640: return $currentstring; 641: } 642: 643: #-- <h1> tag (end tag required) 644: sub start_h1 { 645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 646: my $currentstring = ''; 647: if ($target eq 'web') { 648: $currentstring .= $token->[4]; 649: } elsif ($target eq 'tex') { 650: my $pre; 651: my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1)); 652: if ($align eq 'center') { 653: $pre='\begin{center}'; 654: } elsif ($align eq 'left') { 655: $pre='\rlap{'; 656: } elsif ($align eq 'right') { 657: $pre=' \hfill \llap{'; 658: } 659: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 660: if (not defined $TeXsize) {$TeXsize="large";} 661: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 662: } elsif ($target eq 'meta') { 663: $currentstring='<subject>'; 664: &start_output($target); 665: } 666: return $currentstring; 667: } 668: 669: sub end_h1 { 670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 671: my $currentstring = ''; 672: if ($target eq 'web') { 673: $currentstring .= $token->[2]; 674: } elsif ($target eq 'tex') { 675: my $post='\vskip 0 mm '; 676: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 677: if ($align eq 'center') { 678: $post='\end{center}'; 679: } elsif ($align eq 'left') { 680: $post='} \hfill'.'\vskip 0 mm '; 681: } elsif ($align eq 'right') { 682: $post='}'.'\vskip 0 mm '; 683: } 684: $currentstring .= '}}'.$post; 685: } elsif ($target eq 'meta') { 686: &end_output($target); 687: $currentstring='</subject>'; 688: } 689: return $currentstring; 690: } 691: 692: #-- <h2> tag 693: sub start_h2 { 694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 695: my $currentstring = ''; 696: if ($target eq 'web') { 697: $currentstring .= $token->[4]; 698: } elsif ($target eq 'tex') { 699: my $pre; 700: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 701: if ($align eq 'center') { 702: $pre='\begin{center}'; 703: } elsif ($align eq 'left') { 704: $pre='\rlap{'; 705: } elsif ($align eq 'right') { 706: $pre=' \hfill \llap{'; 707: } 708: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 709: if (not defined $TeXsize) {$TeXsize="large";} 710: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 711: } 712: return $currentstring; 713: } 714: 715: sub end_h2 { 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 717: my $currentstring = ''; 718: if ($target eq 'web') { 719: $currentstring .= $token->[2]; 720: } elsif ($target eq 'tex') { 721: my $post='\vskip 0 mm '; 722: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 723: if ($align eq 'center') { 724: $post='\end{center}'; 725: } elsif ($align eq 'left') { 726: $post='} \hfill'.'\vskip 0 mm '; 727: } elsif ($align eq 'right') { 728: $post='}'.'\vskip 0 mm '; 729: } 730: $currentstring .= '}}'.$post; 731: } 732: return $currentstring; 733: } 734: 735: #-- <h3> tag 736: sub start_h3 { 737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 738: my $currentstring = ''; 739: if ($target eq 'web') { 740: $currentstring .= $token->[4]; 741: } elsif ($target eq 'tex') { 742: my $pre; 743: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 744: if ($align eq 'center') { 745: $pre='\begin{center}'; 746: } elsif ($align eq 'left') { 747: $pre='\rlap{'; 748: } elsif ($align eq 'right') { 749: $pre=' \hfill \llap{'; 750: } 751: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 752: if (not defined $TeXsize) {$TeXsize="large";} 753: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 754: } 755: return $currentstring; 756: } 757: 758: sub end_h3 { 759: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 760: my $currentstring = ''; 761: if ($target eq 'web') { 762: $currentstring .= $token->[2]; 763: } elsif ($target eq 'tex') { 764: my $post='\vskip 0 mm '; 765: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 766: if ($align eq 'center') { 767: $post='\end{center}'; 768: } elsif ($align eq 'left') { 769: $post='} \hfill'.'\vskip 0 mm '; 770: } elsif ($align eq 'right') { 771: $post='}'.'\vskip 0 mm '; 772: } 773: $currentstring .= '}}'.$post; 774: } 775: return $currentstring; 776: } 777: 778: #-- <h4> tag 779: sub start_h4 { 780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 781: my $currentstring = ''; 782: if ($target eq 'web') { 783: $currentstring .= $token->[4]; 784: } elsif ($target eq 'tex') { 785: my $pre; 786: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 787: if ($align eq 'center') { 788: $pre='\begin{center}'; 789: } elsif ($align eq 'left') { 790: $pre='\rlap{'; 791: } elsif ($align eq 'right') { 792: $pre=' \hfill \llap{'; 793: } 794: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 795: if (not defined $TeXsize) {$TeXsize="large";} 796: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 797: } 798: return $currentstring; 799: } 800: 801: sub end_h4 { 802: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 803: my $currentstring = ''; 804: if ($target eq 'web') { 805: $currentstring .= $token->[2]; 806: } elsif ($target eq 'tex') { 807: my $post='\vskip 0 mm '; 808: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 809: if ($align eq 'center') { 810: $post='\end{center}'; 811: } elsif ($align eq 'left') { 812: $post='} \hfill'.'\vskip 0 mm '; 813: } elsif ($align eq 'right') { 814: $post='}'.'\vskip 0 mm '; 815: } 816: $currentstring .= '}}'.$post; 817: } 818: return $currentstring; 819: } 820: 821: #-- <h5> tag 822: sub start_h5 { 823: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 824: my $currentstring = ''; 825: if ($target eq 'web') { 826: $currentstring .= $token->[4]; 827: } elsif ($target eq 'tex') { 828: my $pre; 829: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 830: if ($align eq 'center') { 831: $pre='\begin{center}'; 832: } elsif ($align eq 'left') { 833: $pre='\rlap{'; 834: } elsif ($align eq 'right') { 835: $pre=' \hfill \llap{'; 836: } 837: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 838: if (not defined $TeXsize) {$TeXsize="large";} 839: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 840: } 841: return $currentstring; 842: } 843: 844: sub end_h5 { 845: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 846: my $currentstring = ''; 847: if ($target eq 'web') { 848: $currentstring .= $token->[2]; 849: } elsif ($target eq 'tex') { 850: my $post='\vskip 0 mm '; 851: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 852: if ($align eq 'center') { 853: $post='\end{center}'; 854: } elsif ($align eq 'left') { 855: $post='} \hfill'.'\vskip 0 mm '; 856: } elsif ($align eq 'right') { 857: $post='}'.'\vskip 0 mm '; 858: } 859: $currentstring .= '}}'.$post; 860: } 861: return $currentstring; 862: } 863: 864: #-- <h6> tag 865: sub start_h6 { 866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 867: my $currentstring = ''; 868: if ($target eq 'web') { 869: $currentstring .= $token->[4]; 870: } elsif ($target eq 'tex') { 871: my $pre; 872: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 873: if ($align eq 'center') { 874: $pre='\begin{center}'; 875: } elsif ($align eq 'left') { 876: $pre='\rlap{'; 877: } elsif ($align eq 'right') { 878: $pre=' \hfill \llap{'; 879: } 880: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); 881: if (not defined $TeXsize) {$TeXsize="large";} 882: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; 883: } 884: return $currentstring; 885: } 886: 887: sub end_h6 { 888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 889: my $currentstring = ''; 890: if ($target eq 'web') { 891: $currentstring .= $token->[2]; 892: } elsif ($target eq 'tex') { 893: my $post='\vskip 0 mm '; 894: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 895: if ($align eq 'center') { 896: $post='\end{center}'; 897: } elsif ($align eq 'left') { 898: $post='} \hfill'.'\vskip 0 mm '; 899: } elsif ($align eq 'right') { 900: $post='}'.'\vskip 0 mm '; 901: } 902: $currentstring .= '}}'.$post; 903: } 904: return $currentstring; 905: } 906: 907: #--- <cite> tag (end tag required) 908: sub start_cite { 909: my ($target,$token) = @_; 910: my $currentstring = ''; 911: if ($target eq 'web') { 912: $currentstring .= $token->[4]; 913: } elsif ($target eq 'tex') { 914: $currentstring .= '\textit{'; 915: } 916: return $currentstring; 917: } 918: 919: sub end_cite { 920: my ($target,$token) = @_; 921: my $currentstring = ''; 922: if ($target eq 'web') { 923: $currentstring .= $token->[2]; 924: } elsif ($target eq 'tex') { 925: $currentstring .= '}'; 926: } 927: return $currentstring; 928: } 929: 930: #-- <i> tag (end tag required) 931: sub start_i { 932: my ($target,$token) = @_; 933: my $currentstring = ''; 934: if ($target eq 'web') { 935: $currentstring .= $token->[4]; 936: } elsif ($target eq 'tex') { 937: $currentstring .= '\textit{'; 938: } 939: return $currentstring; 940: } 941: 942: sub end_i { 943: my ($target,$token) = @_; 944: my $currentstring = ''; 945: if ($target eq 'web') { 946: $currentstring .= $token->[2]; 947: } elsif ($target eq 'tex') { 948: $currentstring .= '}'; 949: } 950: return $currentstring; 951: } 952: 953: #-- <address> tag (end tag required) 954: sub start_address { 955: my ($target,$token) = @_; 956: my $currentstring = ''; 957: if ($target eq 'web') { 958: $currentstring .= $token->[4]; 959: } elsif ($target eq 'tex') { 960: $currentstring .= '\textit{'; 961: } 962: return $currentstring; 963: } 964: 965: sub end_address { 966: my ($target,$token) = @_; 967: my $currentstring = ''; 968: if ($target eq 'web') { 969: $currentstring .= $token->[2]; 970: } elsif ($target eq 'tex') { 971: $currentstring .= '}'; 972: } 973: return $currentstring; 974: } 975: 976: #-- <dfn> tag (end tag required) 977: sub start_dfn { 978: my ($target,$token) = @_; 979: my $currentstring = ''; 980: if ($target eq 'web') { 981: $currentstring .= $token->[4]; 982: } elsif ($target eq 'tex') { 983: $currentstring .= '\textit{'; 984: } 985: return $currentstring; 986: } 987: 988: sub end_dfn { 989: my ($target,$token) = @_; 990: my $currentstring = ''; 991: if ($target eq 'web') { 992: $currentstring .= $token->[2]; 993: } elsif ($target eq 'tex') { 994: $currentstring .= '}'; 995: } 996: return $currentstring; 997: } 998: 999: #-- <tt> tag (end tag required) 1000: sub start_tt { 1001: my ($target,$token) = @_; 1002: my $currentstring = ''; 1003: if ($target eq 'web') { 1004: $currentstring .= $token->[4]; 1005: } elsif ($target eq 'tex') { 1006: $currentstring .= '\texttt{'; 1007: } 1008: return $currentstring; 1009: } 1010: 1011: sub end_tt { 1012: my ($target,$token) = @_; 1013: my $currentstring = ''; 1014: if ($target eq 'web') { 1015: $currentstring .= $token->[2]; 1016: } elsif ($target eq 'tex') { 1017: $currentstring .= '}'; 1018: } 1019: return $currentstring; 1020: } 1021: 1022: #-- <kbd> tag (end tag required) 1023: sub start_kbd { 1024: my ($target,$token) = @_; 1025: my $currentstring = ''; 1026: if ($target eq 'web') { 1027: $currentstring .= $token->[4]; 1028: } elsif ($target eq 'tex') { 1029: $currentstring .= '\texttt{'; 1030: } 1031: return $currentstring; 1032: } 1033: 1034: sub end_kbd { 1035: my ($target,$token) = @_; 1036: my $currentstring = ''; 1037: if ($target eq 'web') { 1038: $currentstring .= $token->[2]; 1039: } elsif ($target eq 'tex') { 1040: $currentstring .= '}'; 1041: } 1042: return $currentstring; 1043: } 1044: 1045: #-- <code> tag (end tag required) 1046: sub start_code { 1047: my ($target,$token) = @_; 1048: my $currentstring = ''; 1049: if ($target eq 'web') { 1050: $currentstring .= $token->[4]; 1051: } elsif ($target eq 'tex') { 1052: $currentstring .= '\texttt{'; 1053: } 1054: return $currentstring; 1055: } 1056: 1057: sub end_code { 1058: my ($target,$token) = @_; 1059: my $currentstring = ''; 1060: if ($target eq 'web') { 1061: $currentstring .= $token->[2]; 1062: } elsif ($target eq 'tex') { 1063: $currentstring .= '}'; 1064: } 1065: return $currentstring; 1066: } 1067: 1068: #-- <em> tag (end tag required) 1069: sub start_em { 1070: my ($target,$token) = @_; 1071: my $currentstring = ''; 1072: if ($target eq 'web') { 1073: $currentstring .= $token->[4]; 1074: } elsif ($target eq 'tex') { 1075: $currentstring .= '\emph{'; 1076: } 1077: return $currentstring; 1078: } 1079: 1080: sub end_em { 1081: my ($target,$token) = @_; 1082: my $currentstring = ''; 1083: if ($target eq 'web') { 1084: $currentstring .= $token->[2]; 1085: } elsif ($target eq 'tex') { 1086: $currentstring .= '}'; 1087: } 1088: return $currentstring; 1089: } 1090: 1091: #-- <q> tag (end tag required) 1092: sub start_q { 1093: my ($target,$token) = @_; 1094: my $currentstring = ''; 1095: if ($target eq 'web') { 1096: $currentstring .= $token->[4]; 1097: } elsif ($target eq 'tex') { 1098: $currentstring .= '\emph{'; 1099: } 1100: return $currentstring; 1101: } 1102: 1103: sub end_q { 1104: my ($target,$token) = @_; 1105: my $currentstring = ''; 1106: if ($target eq 'web') { 1107: $currentstring .= $token->[2]; 1108: } elsif ($target eq 'tex') { 1109: $currentstring .= '}'; 1110: } 1111: return $currentstring; 1112: } 1113: 1114: #-- <p> tag (end tag optional) 1115: #optional attribute - align="center|left|right" 1116: sub start_p { 1117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1118: my $currentstring = ''; 1119: if ($target eq 'web') { 1120: $currentstring .= $token->[4]; 1121: } elsif ($target eq 'tex') { 1122: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 1123: if ($align eq 'center') { 1124: $currentstring='\begin{center}\par'; 1125: } elsif ($align eq 'right') { 1126: $currentstring='\makebox['.$ENV{'form.textwidth'}.']{\hfill\llap{'; 1127: } elsif ($align eq 'left') { 1128: $currentstring='\noindent\makebox['.$ENV{'form.textwidth'}.']{\rlap{'; 1129: } else { 1130: $currentstring='\par '; 1131: } 1132: my $signal=1;#<p> does not work inside <b>...</b> 1133: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;} 1134: if (!$signal) {$currentstring = '';} 1135: } 1136: } 1137: return $currentstring; 1138: } 1139: 1140: sub end_p { 1141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1142: my $currentstring = ''; 1143: if ($target eq 'web') { 1144: $currentstring .= $token->[2]; 1145: } elsif ($target eq 'tex') { 1146: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 1147: if (not defined $align) { 1148: $currentstring.='\strut\\\\\strut '; 1149: } elsif ($align eq 'center') { 1150: $currentstring .= '\end{center}'; 1151: } elsif ($align eq 'right') { 1152: $currentstring .= '}}'; 1153: } elsif ($align eq 'left') { 1154: $currentstring .= '}\hfill}'; 1155: } 1156: } 1157: return $currentstring; 1158: } 1159: 1160: #-- <br> tag (end tag forbidden) 1161: sub start_br { 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1163: my $currentstring = ''; 1164: if ($target eq 'web') { 1165: $currentstring .= $token->[4]; 1166: } elsif ($target eq 'tex') { 1167: my @tempo=@$tagstack; 1168: my $signal=0; 1169: for (my $i=$#tempo;$i>=0;$i--) { 1170: if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') || 1171: ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') || 1172: ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) { 1173: $signal=1; 1174: last; 1175: } 1176: } 1177: if ($signal) { 1178: $currentstring .= ' \vskip 0 mm '; 1179: } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') { 1180: $currentstring .= '\strut \\\\ \strut '; 1181: } 1182: } 1183: return $currentstring; 1184: } 1185: 1186: sub end_br { 1187: my ($target,$token) = @_; 1188: my $currentstring = ''; 1189: if ($target eq 'web') { 1190: $currentstring .= $token->[2]; 1191: } 1192: return $currentstring; 1193: } 1194: 1195: #-- <big> tag (end tag required) 1196: sub start_big { 1197: my ($target,$token) = @_; 1198: my $currentstring = ''; 1199: if ($target eq 'web') { 1200: $currentstring .= $token->[4]; 1201: } elsif ($target eq 'tex') { 1202: $currentstring .= '{\large '; 1203: } 1204: return $currentstring; 1205: } 1206: 1207: sub end_big { 1208: my ($target,$token) = @_; 1209: my $currentstring = ''; 1210: if ($target eq 'web') { 1211: $currentstring .= $token->[2]; 1212: } elsif ($target eq 'tex') { 1213: $currentstring .= '}'; 1214: } 1215: return $currentstring; 1216: } 1217: 1218: #-- <small> tag (end tag required) 1219: sub start_small { 1220: my ($target,$token) = @_; 1221: my $currentstring = ''; 1222: if ($target eq 'web') { 1223: $currentstring .= $token->[4]; 1224: } elsif ($target eq 'tex') { 1225: $currentstring .= '{\footnotesize '; 1226: } 1227: return $currentstring; 1228: } 1229: 1230: sub end_small { 1231: my ($target,$token) = @_; 1232: my $currentstring = ''; 1233: if ($target eq 'web') { 1234: $currentstring .= $token->[2]; 1235: } elsif ($target eq 'tex') { 1236: $currentstring .= '}'; 1237: } 1238: return $currentstring; 1239: } 1240: 1241: #-- <basefont> tag (end tag forbidden) 1242: sub start_basefont { 1243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1244: my $currentstring = ''; 1245: if ($target eq 'web') { 1246: $currentstring = $token->[4]; 1247: } elsif ($target eq 'tex') { 1248: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); 1249: if (defined $basesize) { 1250: $currentstring = '{\\'.$basesize.' '; 1251: } 1252: } 1253: return $currentstring; 1254: } 1255: 1256: sub end_basefont { 1257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1258: my $currentstring = ''; 1259: if ($target eq 'web') { 1260: $currentstring = $token->[4]; 1261: } elsif ($target eq 'tex') { 1262: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); 1263: if (defined $basesize) { 1264: $currentstring = '}'; 1265: } 1266: } 1267: return $currentstring; 1268: } 1269: 1270: #-- <font> tag (end tag required) 1271: sub start_font { 1272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1273: my $currentstring = ''; 1274: if ($target eq 'web') { 1275: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval); 1276: if ($face!~/symbol/i) { 1277: if (($ENV{'browser.fontenhance'} eq 'on') || 1278: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; } 1279: } 1280: $currentstring = $token->[4]; 1281: } elsif ($target eq 'tex') { 1282: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); 1283: if (defined $fontsize) { 1284: $currentstring = '{\\'.$fontsize.' '; 1285: } 1286: } 1287: return $currentstring; 1288: } 1289: 1290: sub end_font { 1291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1292: my $currentstring = ''; 1293: if ($target eq 'web') { 1294: $currentstring = $token->[2]; 1295: } elsif ($target eq 'tex') { 1296: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); 1297: if (defined $fontsize) { 1298: $currentstring = '}'; 1299: } 1300: } 1301: return $currentstring; 1302: } 1303: 1304: #-- <strike> tag (end tag required) 1305: sub start_strike { 1306: my ($target,$token) = @_; 1307: my $currentstring = ''; 1308: if ($target eq 'web') { 1309: $currentstring .= $token->[4]; 1310: } elsif ($target eq 'tex') { 1311: &Apache::lonxml::startredirection(); 1312: } 1313: return $currentstring; 1314: } 1315: 1316: sub end_strike { 1317: my ($target,$token) = @_; 1318: my $currentstring = ''; 1319: if ($target eq 'web') { 1320: $currentstring .= $token->[2]; 1321: } elsif ($target eq 'tex') { 1322: $currentstring=&Apache::lonxml::endredirection(); 1323: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g; 1324: $currentstring=~s/^\s*(\S)/\\underline\{$1/; 1325: $currentstring=~s/(\S)\s*$/$1\}/; 1326: } 1327: return $currentstring; 1328: } 1329: 1330: #-- <s> tag (end tag required) 1331: sub start_s { 1332: my ($target,$token) = @_; 1333: my $currentstring = ''; 1334: if ($target eq 'web') { 1335: $currentstring .= $token->[4]; 1336: } elsif ($target eq 'tex') { 1337: &Apache::lonxml::startredirection(); 1338: } 1339: return $currentstring; 1340: } 1341: 1342: sub end_s { 1343: my ($target,$token) = @_; 1344: my $currentstring = ''; 1345: if ($target eq 'web') { 1346: $currentstring .= $token->[2]; 1347: } elsif ($target eq 'tex') { 1348: $currentstring=&Apache::lonxml::endredirection(); 1349: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g; 1350: $currentstring=~s/^\s*(\S)/\\underline\{$1/; 1351: $currentstring=~s/(\S)\s*$/$1\}/; 1352: } 1353: return $currentstring; 1354: } 1355: 1356: #-- <sub> tag (end tag required) 1357: sub start_sub { 1358: my ($target,$token) = @_; 1359: my $currentstring = ''; 1360: if ($target eq 'web') { 1361: $currentstring .= $token->[4]; 1362: } elsif ($target eq 'tex') { 1363: $currentstring .= '\ensuremath{_{'; 1364: } 1365: return $currentstring; 1366: } 1367: 1368: sub end_sub { 1369: my ($target,$token) = @_; 1370: my $currentstring = ''; 1371: if ($target eq 'web') { 1372: $currentstring .= $token->[2]; 1373: } elsif ($target eq 'tex') { 1374: $currentstring .= '}}'; 1375: } 1376: return $currentstring; 1377: } 1378: 1379: #-- <sup> tag (end tag required) 1380: sub start_sup { 1381: my ($target,$token) = @_; 1382: my $currentstring = ''; 1383: if ($target eq 'web') { 1384: $currentstring .= $token->[4]; 1385: } elsif ($target eq 'tex') { 1386: $currentstring .= '\ensuremath{^{'; 1387: } 1388: return $currentstring; 1389: } 1390: 1391: sub end_sup { 1392: my ($target,$token) = @_; 1393: my $currentstring = ''; 1394: if ($target eq 'web') { 1395: $currentstring .= $token->[2]; 1396: } elsif ($target eq 'tex') { 1397: $currentstring .= '}}'; 1398: } 1399: return $currentstring; 1400: } 1401: 1402: #-- <hr> tag (end tag forbidden) 1403: sub start_hr { 1404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1405: my $currentstring = ''; 1406: if ($target eq 'web') { 1407: $currentstring .= $token->[4]; 1408: } elsif ($target eq 'tex') { 1409: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 1410: if (defined $LaTeXwidth) { 1411: if ($LaTeXwidth=~/^%/) { 1412: substr($LaTeXwidth,0,1)=''; 1413: $LaTeXwidth=($LaTeXwidth/100).'\textwidth'; 1414: } 1415: } else { 1416: $LaTeXwidth ='0.9\textwidth'; 1417: } 1418: my ($pre,$post); 1419: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 1420: if (($align eq 'center') || (not defined $align)) { 1421: $pre=''; $post=''; 1422: } elsif ($align eq 'left') { 1423: $pre='\rlap{'; $post='} \hfill'; 1424: } elsif ($align eq 'right') { 1425: $pre=' \hfill \llap{'; $post='}'; 1426: } 1427: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['. 1428: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm '; 1429: } 1430: return $currentstring; 1431: } 1432: 1433: sub end_hr { 1434: my ($target,$token) = @_; 1435: my $currentstring = ''; 1436: if ($target eq 'web') { 1437: $currentstring .= $token->[2]; 1438: } 1439: return $currentstring; 1440: } 1441: 1442: #-- <div> tag (end tag required) 1443: sub start_div { 1444: my ($target,$token) = @_; 1445: my $currentstring = ''; 1446: if ($target eq 'web') { 1447: $currentstring .= $token->[4]; 1448: } 1449: return $currentstring; 1450: } 1451: 1452: sub end_div { 1453: my ($target,$token) = @_; 1454: my $currentstring = ''; 1455: if ($target eq 'web') { 1456: $currentstring .= $token->[2]; 1457: } 1458: return $currentstring; 1459: } 1460: 1461: #-- <a> tag (end tag required) 1462: sub start_a { 1463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1464: my $currentstring = ''; 1465: if ($target eq 'web') { 1466: $currentstring .= $token->[4]; 1467: } elsif ($target eq 'tex') { 1468: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1); 1469: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1); 1470: if ($a=~/\S/) { 1471: $a=~s/([^\\])%/$1\\\%/g; 1472: $currentstring .= '\ref{URI: '.$a.'}'; 1473: } elsif ($b=~/\S/) { 1474: $currentstring .= '\ref{Anchor: '.$b.'}'; 1475: } else { 1476: $currentstring.=''; 1477: } 1478: } 1479: return $currentstring; 1480: } 1481: 1482: sub end_a { 1483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1484: my $currentstring = ''; 1485: if ($target eq 'web') { 1486: $currentstring .= $token->[2]; 1487: } 1488: return $currentstring; 1489: } 1490: 1491: #-- <li> tag (end tag optional) 1492: sub start_li { 1493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1494: my $currentstring = ''; 1495: if ($target eq 'web') { 1496: $currentstring = $token->[4]; 1497: } elsif ($target eq 'tex') { 1498: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0); 1499: my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0); 1500: #FIXME need to support types i and I 1501: if ($type=~/disc/) { 1502: $currentstring .= ' \item[$\bullet$] '; 1503: } elsif ($type=~/circle/) { 1504: $currentstring .= ' \item[$\circ$] '; 1505: } elsif ($type=~/square/) { 1506: $currentstring .= ' \item[$\diamond$] '; 1507: } elsif ($type eq '1') { 1508: $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]'; 1509: } elsif ($type eq 'A') { 1510: $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]'; 1511: } elsif ($type eq 'a') { 1512: $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]'; 1513: } elsif ($value ne '') { 1514: $currentstring .= ' \item['.$value.'] '; 1515: } else { 1516: $currentstring .= ' \item '; 1517: } 1518: $Apache::londefdef::list_index++; 1519: } 1520: return $currentstring; 1521: } 1522: 1523: sub end_li { 1524: my ($target,$token) = @_; 1525: my $currentstring = ''; 1526: if ($target eq 'web') { 1527: $currentstring = $token->[2]; 1528: } 1529: return $currentstring; 1530: } 1531: 1532: #-- <u> tag (end tag required) 1533: sub start_u { 1534: my ($target,$token) = @_; 1535: my $currentstring = ''; 1536: if ($target eq 'web') { 1537: $currentstring .= $token->[4]; 1538: } elsif ($target eq 'tex') { 1539: &Apache::lonxml::startredirection(); 1540: } 1541: return $currentstring; 1542: } 1543: 1544: sub end_u { 1545: my ($target,$token) = @_; 1546: my $currentstring = ''; 1547: if ($target eq 'web') { 1548: $currentstring .= $token->[2]; 1549: } elsif ($target eq 'tex') { 1550: $currentstring=&Apache::lonxml::endredirection(); 1551: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g; 1552: $currentstring=~s/^\s*(\S)/\\underline\{$1/; 1553: $currentstring=~s/(\S)\s*$/$1\}/; 1554: } 1555: return $currentstring; 1556: } 1557: 1558: #-- <ul> tag (end tag required) 1559: sub start_ul { 1560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1561: my $currentstring = ''; 1562: if ($target eq 'web') { 1563: $currentstring = $token->[4]; 1564: } elsif ($target eq 'tex') { 1565: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0); 1566: $Apache::londefdef::list_index=0; 1567: if ($TeXtype eq 'disc') { 1568: $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'. 1569: '\renewcommand{\labelitemii}{$\bullet$}'. 1570: '\renewcommand{\labelitemiii}{$\bullet$}'. 1571: '\renewcommand{\labelitemiv}{$\bullet$}'; 1572: } elsif ($TeXtype eq 'circle') { 1573: $currentstring .= '\renewcommand{\labelitemi}{$\circ$}'. 1574: '\renewcommand{\labelitemii}{$\circ$}'. 1575: '\renewcommand{\labelitemiii}{$\circ$}'. 1576: '\renewcommand{\labelitemiv}{$\circ$}'; 1577: } elsif ($TeXtype eq 'square') { 1578: $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'. 1579: '\renewcommand{\labelitemii}{$\diamond$}'. 1580: '\renewcommand{\labelitemiii}{$\diamond$}'. 1581: '\renewcommand{\labelitemiv}{$\diamond$}'; 1582: } 1583: $currentstring .= '\strut \begin{itemize}'; 1584: } 1585: return $currentstring; 1586: } 1587: 1588: sub end_ul { 1589: my ($target,$token) = @_; 1590: my $currentstring = ''; 1591: if ($target eq 'web') { 1592: $currentstring = $token->[2]; 1593: } elsif ($target eq 'tex') { 1594: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'. 1595: '\renewcommand{\labelitemii}{$\bullet$}'. 1596: '\renewcommand{\labelitemiii}{$\bullet$}'. 1597: '\renewcommand{\labelitemiv}{$\bullet$}\strut '; 1598: } 1599: return $currentstring; 1600: } 1601: 1602: #-- <menu> tag (end tag required) 1603: sub start_menu { 1604: my ($target,$token) = @_; 1605: my $currentstring = ''; 1606: if ($target eq 'web') { 1607: $currentstring = $token->[4]; 1608: } elsif ($target eq 'tex') { 1609: $currentstring = " \\begin{itemize} "; 1610: } 1611: return $currentstring; 1612: } 1613: 1614: sub end_menu { 1615: my ($target,$token) = @_; 1616: my $currentstring = ''; 1617: if ($target eq 'web') { 1618: $currentstring = $token->[2]; 1619: } elsif ($target eq 'tex') { 1620: $currentstring = " \\end{itemize}"; 1621: } 1622: return $currentstring; 1623: } 1624: 1625: #-- <dir> tag (end tag required) 1626: sub start_dir { 1627: my ($target,$token) = @_; 1628: my $currentstring = ''; 1629: if ($target eq 'web') { 1630: $currentstring = $token->[4]; 1631: } elsif ($target eq 'tex') { 1632: $currentstring = " \\begin{itemize} "; 1633: } 1634: return $currentstring; 1635: } 1636: 1637: sub end_dir { 1638: my ($target,$token) = @_; 1639: my $currentstring = ''; 1640: if ($target eq 'web') { 1641: $currentstring = $token->[2]; 1642: } elsif ($target eq 'tex') { 1643: $currentstring = " \\end{itemize}"; 1644: } 1645: return $currentstring; 1646: } 1647: 1648: #-- <ol> tag (end tag required) 1649: sub start_ol { 1650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1651: my $currentstring = ''; 1652: if ($target eq 'web') { 1653: $currentstring = $token->[4]; 1654: } elsif ($target eq 'tex') { 1655: $Apache::londefdef::list_index=0; 1656: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0); 1657: if ($type eq '1') { 1658: $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'. 1659: '\renewcommand{\labelenumii}{\arabic{enumii}.}'. 1660: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'. 1661: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}'; 1662: } elsif ($type eq 'A') { 1663: $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'. 1664: '\renewcommand{\labelenumii}{\Alph{enumii}.}'. 1665: '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'. 1666: '\renewcommand{\labelenumiv}{\Alph{enumiv}.}'; 1667: } elsif ($type eq 'a') { 1668: $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'. 1669: '\renewcommand{\labelenumii}{\alph{enumii}.}'. 1670: '\renewcommand{\labelenumiii}{\alph{enumiii}.}'. 1671: '\renewcommand{\labelenumiv}{\alph{enumiv}.}'; 1672: } elsif ($type eq 'i') { 1673: $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'. 1674: '\renewcommand{\labelenumii}{\roman{enumii}.}'. 1675: '\renewcommand{\labelenumiii}{\roman{enumiii}.}'. 1676: '\renewcommand{\labelenumiv}{\roman{enumiv}.}'; 1677: } elsif ($type eq 'I') { 1678: $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'. 1679: '\renewcommand{\labelenumii}{\Roman{enumii}.}'. 1680: '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'. 1681: '\renewcommand{\labelenumiv}{\Roman{enumiv}.}'; 1682: } 1683: $currentstring .= '\strut \begin{enumerate}'; 1684: } 1685: return $currentstring; 1686: } 1687: 1688: sub end_ol { 1689: my ($target,$token) = @_; 1690: my $currentstring = ''; 1691: if ($target eq 'web') { 1692: $currentstring = $token->[2]; 1693: } elsif ($target eq 'tex') { 1694: $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'. 1695: '\renewcommand{\labelenumii}{\arabic{enumii}.}'. 1696: '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'. 1697: '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut '; 1698: } 1699: return $currentstring; 1700: } 1701: 1702: #-- <dl> tag (end tag required) 1703: sub start_dl { 1704: my ($target,$token) = @_; 1705: my $currentstring = ''; 1706: if ($target eq 'web') { 1707: $currentstring = $token->[4]; 1708: } elsif ($target eq 'tex') { 1709: $currentstring = '\begin{description}'; 1710: $Apache::londefdef::DL++; 1711: push(@Apache::londefdef::description,[]); 1712: $Apache::londefdef::DD[$Apache::londefdef::DL]=0; 1713: $Apache::londefdef::DT[$Apache::londefdef::DL]=0; 1714: $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0; 1715: } 1716: return $currentstring; 1717: } 1718: 1719: sub end_dl { 1720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1721: my $currentstring = ''; 1722: if ($target eq 'web') { 1723: $currentstring = $token->[2]; 1724: } elsif ($target eq 'tex') { 1725: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } 1726: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); } 1727: foreach my $element (@{$Apache::londefdef::description[-1]}) { 1728: $currentstring.=' '.$element.' '; 1729: } 1730: pop(@Apache::londefdef::description); 1731: $currentstring.='\end{description}'; 1732: delete($Apache::londefdef::DD[$Apache::londefdef::DL]); 1733: delete($Apache::londefdef::DT[$Apache::londefdef::DL]); 1734: delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]); 1735: $Apache::londefdef::DL--; 1736: } 1737: return $currentstring; 1738: } 1739: 1740: #-- <dt> tag (end tag optional) 1741: sub start_dt { 1742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1743: my $currentstring=''; 1744: if ($target eq 'web') { 1745: $currentstring = $token->[4]; 1746: } elsif ($target eq 'tex') { 1747: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } 1748: if ($Apache::londefdef::DD[-1]) { &end_dd(@_); } 1749: &Apache::lonxml::startredirection(); 1750: $Apache::londefdef::DT[-1]++; 1751: $Apache::londefdef::seenDT[-1]=1; 1752: } 1753: return $currentstring; 1754: } 1755: 1756: sub end_dt { 1757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1758: my $currentstring = ''; 1759: if ($target eq 'web') { 1760: $currentstring = $token->[2]; 1761: } elsif ($target eq 'tex') { 1762: if ($Apache::londefdef::DT[-1]) { 1763: my $data=&item_cleanup(); 1764: push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm'); 1765: $Apache::londefdef::DT[-1]--; 1766: } 1767: } 1768: return $currentstring; 1769: } 1770: 1771: sub item_cleanup { 1772: my $item=&Apache::lonxml::endredirection(); 1773: $item=~s/\\begin{center}//g; 1774: $item=~s/\\end{center}//g; 1775: return $item; 1776: } 1777: 1778: #-- <dd> tag (end tag optional) 1779: sub start_dd { 1780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1781: my $currentstring = ''; 1782: if ($target eq 'web') { 1783: $currentstring = $token->[4]; 1784: } elsif ($target eq 'tex') { 1785: if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } 1786: if ($Apache::londefdef::DD[-1]) { &end_dd(@_);} 1787: if (!$Apache::londefdef::seenDT[-1]) { 1788: push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm '); 1789: } 1790: push(@{$Apache::londefdef::description[-1]},''); 1791: $Apache::londefdef::description[-1]->[-1].=' \strut '; 1792: $Apache::londefdef::DD[-1]++; 1793: &Apache::lonxml::startredirection(); 1794: } 1795: return $currentstring; 1796: } 1797: 1798: sub end_dd { 1799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1800: my $currentstring = ''; 1801: if ($target eq 'web') { 1802: $currentstring = $token->[2]; 1803: } elsif ($target eq 'tex') { 1804: $Apache::londefdef::description[-1]->[-1].= 1805: &Apache::lonxml::endredirection().' \vskip 0mm '; 1806: $Apache::londefdef::DD[-1]--; 1807: } 1808: return $currentstring; 1809: } 1810: 1811: #-- <table> tag (end tag required) 1812: #list of supported attributes: border,width,TeXwidth 1813: sub start_table { 1814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1815: my ($textwidth,$currentstring)=('',''); 1816: if ($target eq 'web') { 1817: $currentstring = $token->[4]; 1818: } elsif ($target eq 'tex') { 1819: my $aa = {}; 1820: push @Apache::londefdef::table, $aa; 1821: $Apache::londefdef::table[-1]{'row_number'} = -1; 1822: #maximum table's width (default coincides with text line length) 1823: if ($#Apache::londefdef::table==0) { 1824: $textwidth=&recalc($ENV{'form.textwidth'}); #result is always in mm 1825: $textwidth=~/(\d+\.?\d*)/; 1826: $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame 1827: } else { 1828: if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) { 1829: #the maximum width of nested table is determined by LATeX width of parent cell 1830: $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]; 1831: } else { 1832: #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly 1833: $textwidth=$Apache::londefdef::table[-2]{'width'}; 1834: for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) { 1835: $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i]; 1836: } 1837: } 1838: } 1839: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 1840: if (not defined $TeXwidth) { 1841: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1); 1842: if ($htmlwidth=~/%/) { 1843: $Apache::londefdef::table[-1]{'percent'}=1; 1844: $htmlwidth=~/(\d+)/; 1845: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;; 1846: } else { 1847: $Apache::londefdef::table[-1]{'width'}=$textwidth; 1848: } 1849: } elsif ($TeXwidth=~/%/) { 1850: $Apache::londefdef::table[-1]{'percent'}=1; 1851: $TeXwidth=~/(\d+)/; 1852: $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100; 1853: } else { 1854: $Apache::londefdef::table[-1]{'forcetablewidth'}=1; 1855: $Apache::londefdef::table[-1]{'width'}=$TeXwidth; 1856: } 1857: #table's border 1858: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval); 1859: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0); 1860: unless (defined $border) { $border = 0; } 1861: if ($border) { 1862: $Apache::londefdef::table[-1]{'hinc'} = '\hline '; 1863: $Apache::londefdef::table[-1]{'vinc'} = '&'; 1864: $Apache::londefdef::table[-1]{'vvinc'} = '|'; 1865: } else { 1866: $Apache::londefdef::table[-1]{'hinc'} = ''; 1867: $Apache::londefdef::table[-1]{'vinc'} = '&'; 1868: $Apache::londefdef::table[-1]{'vvinc'} = ''; 1869: } 1870: if ($#Apache::londefdef::table==0) { 1871: $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}'; 1872: } 1873: $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} '; 1874: $Apache::londefdef::table[-1]{'TeXlen'}=[]; 1875: $Apache::londefdef::table[-1]{'objectlen'}=[]; 1876: $Apache::londefdef::table[-1]{'objectsignal'}=[]; 1877: $Apache::londefdef::table[-1]{'maxlen'}=[]; 1878: $Apache::londefdef::table[-1]{'minlen'}=[]; 1879: $Apache::londefdef::table[-1]{'content'}=[]; 1880: $Apache::londefdef::table[-1]{'align'}=[]; 1881: $currentstring='\keephidden{NEW TABLE ENTRY}'; 1882: } 1883: return $currentstring; 1884: } 1885: 1886: sub end_table { 1887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 1888: my $currentstring = ''; 1889: if ($target eq 'web') { 1890: $currentstring = $token->[2]; 1891: } elsif ($target eq 'tex') { 1892: my $inmemory = ''; 1893: my $output = ''; 1894: my $WARNING=''; 1895: #width of columns from TeXwidth attributes 1896: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 1897: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { 1898: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) { 1899: $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]; 1900: } 1901: } 1902: } 1903: #free space and number of empty columns 1904: my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0); 1905: if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;} 1906: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { 1907: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) { 1908: $empty_columns++; 1909: } else { 1910: $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]; 1911: } 1912: } 1913: #boundaries for contents columns 1914: my @min_len=();#columns can not be narrower 1915: my @max_len=();#maximum length of column 1916: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { 1917: my ($localmin,$localmax)=(0,0); 1918: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 1919: if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) { 1920: $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]; 1921: } 1922: if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) { 1923: $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]; 1924: } 1925: } 1926: push @min_len, $localmin; 1927: push @max_len, $localmax; 1928: } 1929: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { 1930: my $localmin=0,; 1931: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 1932: if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) { 1933: $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]; 1934: } 1935: } 1936: if ($max_len[$jn]<$localmin) { 1937: $max_len[$jn]=$localmin; 1938: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1; 1939: }#object size is bigger 1940: if ($min_len[$jn]<$localmin) { 1941: $min_len[$jn]=$localmin; 1942: $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1; 1943: }#object size is bigger 1944: if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) { 1945: $min_len[$jn]=0; 1946: $max_len[$jn]=0; 1947: } 1948: } 1949: #final adjustment of column width 1950: my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array 1951: my @adjust=(); 1952: #step 1. adjustment by maximum value 1953: my $space_neeeded=0; 1954: for (my $jn=0;$jn<=$#max_len;$jn++) { 1955: $space_neeeded=$space_neeeded+$max_len[$jn]; 1956: } 1957: if ($space_neeeded<=$available_space) { 1958: for (my $jn=0;$jn<=$#max_len;$jn++) { 1959: if ($fwidth[$jn]==0) { 1960: $fwidth[$jn]=$max_len[$jn]; 1961: } 1962: } 1963: } else { 1964: #step 2. adjustment by minimum value (estimation) 1965: $space_neeeded=0; 1966: for (my $jn=0;$jn<=$#min_len;$jn++) { 1967: $space_neeeded+=$min_len[$jn]; 1968: } 1969: if ($space_neeeded>$available_space) { 1970: $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} '; 1971: for (my $jn=0;$jn<=$#max_len;$jn++) { 1972: if ($fwidth[$jn]==0) { 1973: $fwidth[$jn]=$min_len[$jn]; 1974: } 1975: } 1976: #check if we have objects which can be scaled 1977: my $how_many_to_scale=0; 1978: my @to_scale=(); 1979: for (my $jn=0;$jn<=$#max_len;$jn++) { 1980: if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') { 1981: $how_many_to_scale++; 1982: push @to_scale, $jn; 1983: } 1984: } 1985: if ($how_many_to_scale>0) { 1986: my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale; 1987: foreach my $jn (@to_scale) { 1988: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 1989: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/; 1990: if ($1 ne '') { 1991: my $current_length=&recalc($1); 1992: $current_length=~/(\d+\.?\d*)/; 1993: $current_length=$current_length-$space_to_adjust; 1994: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/; 1995: } 1996: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/; 1997: if ($1 ne '') { 1998: my $current_length=$1; 1999: $current_length=$current_length-$space_to_adjust; 2000: $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/; 2001: } 2002: } 2003: $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust; 2004: } 2005: } 2006: } else { 2007: #step 3. adjustment over minimal + corrections 2008: my $enlarge_coef=$available_space/$space_neeeded; 2009: my $acsessive=0; 2010: for (my $jn=0;$jn<=$#min_len;$jn++) { 2011: $adjust[$jn]=$min_len[$jn]*$enlarge_coef; 2012: if ($adjust[$jn]>$max_len[$jn]) { 2013: $fwidth[$jn]=$max_len[$jn]; 2014: $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn]; 2015: $adjust[$jn]=0; 2016: } 2017: } 2018: if ($acsessive>0) { 2019: #we have an excess of space and can redistribute it 2020: my $notempty_columns=0; 2021: for (my $jn=0;$jn<=$#min_len;$jn++) { 2022: if ($adjust[$jn]!=0) { 2023: $notempty_columns++; 2024: } 2025: } 2026: my $per_column=$acsessive/$notempty_columns; 2027: for (my $jn=0;$jn<=$#min_len;$jn++) { 2028: if ($adjust[$jn]!=0) { 2029: $adjust[$jn]+=$per_column; 2030: $fwidth[$jn]=$adjust[$jn]; 2031: } 2032: } 2033: } else { 2034: for (my $jn=0;$jn<=$#min_len;$jn++) { 2035: $fwidth[$jn]=$adjust[$jn]; 2036: } 2037: } 2038: } 2039: } 2040: #use all available width if it is defined in % or as TeXwidth 2041: if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) { 2042: my $current=0; 2043: for (my $i=0;$i<=$#fwidth;$i++) { 2044: $current+=$fwidth[$i]; 2045: } 2046: my $coef=$Apache::londefdef::table[-1]{'width'}/$current; 2047: for (my $i=0;$i<=$#fwidth;$i++) { 2048: $fwidth[$i]*=$coef; 2049: } 2050: } 2051: #removing of empty columns if allowed 2052: my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0); 2053: if ($permission eq 'yes') { 2054: my @cleaned_table=(); 2055: my @cleaned_header=(); 2056: my $colind=0; 2057: for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { 2058: if ($fwidth[$jn]!=0) { 2059: #we need to copy column 2060: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 2061: $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn]; 2062: $cleaned_header[$colind]=$fwidth[$jn]; 2063: } 2064: $colind++; 2065: } 2066: } 2067: $Apache::londefdef::table[-1]{'content'}=\@cleaned_table; 2068: @fwidth=@cleaned_header; 2069: } 2070: #construct header of the table 2071: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'}; 2072: for (my $in=0;$in<=$#fwidth;$in++) { 2073: $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'}; 2074: } 2075: $header_of_table .= '}'; 2076: #fill the table 2077: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { 2078: for (my $jn=0;$jn<=$#fwidth;$jn++) { 2079: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') { 2080: $output.='\vspace*{-6 mm}\begin{center}'; 2081: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') { 2082: $output.=' \hfill \llap{' 2083: } 2084: $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn]; 2085: if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') { 2086: $output.='\end{center}\vspace*{-6 mm}'; 2087: } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') { 2088: $output.='} '; 2089: } 2090: if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};} 2091: } 2092: $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' '; 2093: } 2094: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut '; 2095: if ($#Apache::londefdef::table > 0) { 2096: my $inmemory = $Apache::londefdef::table[-1]{'output'}; 2097: pop @Apache::londefdef::table; 2098: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory; 2099: } else { 2100: $currentstring .= $Apache::londefdef::table[-1]{'output'}; 2101: pop @Apache::londefdef::table; 2102: undef @Apache::londefdef::table; 2103: } 2104: } 2105: return $currentstring; 2106: } 2107: 2108: #-- <tr> tag (end tag optional) 2109: sub start_tr { 2110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2111: my $currentstring = ''; 2112: if ($target eq 'web') { 2113: $currentstring = $token->[4]; 2114: } elsif ($target eq 'tex') { 2115: $Apache::londefdef::table[-1]{'row_number'}++; 2116: my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); 2117: if ($alignchar ne '') { 2118: push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1); 2119: } else { 2120: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l'; 2121: } 2122: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'}); 2123: $Apache::londefdef::table[-1]{'counter_columns'} = -1; 2124: push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, []; 2125: push @ {$Apache::londefdef::table[-1]{'objectlen'}}, []; 2126: push @ {$Apache::londefdef::table[-1]{'minlen'}}, []; 2127: push @ {$Apache::londefdef::table[-1]{'maxlen'}}, []; 2128: push @ {$Apache::londefdef::table[-1]{'content'}}, []; 2129: } 2130: return $currentstring; 2131: } 2132: 2133: sub end_tr { 2134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2135: my $currentstring = ''; 2136: if ($target eq 'web') { 2137: $currentstring = $token->[2]; 2138: } elsif ($target eq 'tex') { 2139: if ($Apache::londefdef::TD_redirection) { 2140: &end_td_tex($parstack,$parser,$safeeval); 2141: } 2142: } 2143: return $currentstring; 2144: } 2145: 2146: #-- <td> tag (end tag optional) 2147: sub start_td { 2148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2149: my $currentstring = ''; 2150: if ($target eq 'web') { 2151: $currentstring = $token->[4]; 2152: } elsif ($target eq 'tex') { 2153: $Apache::londefdef::TD_redirection = 1; 2154: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval); 2155: } 2156: return $currentstring; 2157: } 2158: 2159: sub tag_check { 2160: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_; 2161: my @ar=@$parstack; 2162: for (my $i=$#ar-1;$i>=0;$i--) { 2163: if (lc($$tagstack[$i]) eq $good_tag) { 2164: &start_td_tex($parstack,$parser,$safeeval); 2165: last; 2166: } elsif (lc($$tagstack[$i]) eq $bad_tag) { 2167: splice @ar, $i+1; 2168: &end_td_tex(\@ar,$parser,$safeeval); 2169: &start_td_tex($parstack,$parser,$safeeval); 2170: last; 2171: } 2172: } 2173: return ''; 2174: } 2175: 2176: sub start_td_tex { 2177: my ($parstack,$parser,$safeeval) = @_; 2178: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); 2179: if ($alignchar eq '') { 2180: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1]; 2181: } 2182: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar; 2183: $Apache::londefdef::table[-1]{'counter_columns'}++; 2184: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 2185: if (defined $TeXwidth) { 2186: my $current_length=&recalc($TeXwidth); 2187: $current_length=~/(\d+\.?\d*)/; 2188: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1; 2189: } 2190: &Apache::lonxml::startredirection(); 2191: return ''; 2192: } 2193: 2194: sub end_td_tex { 2195: my ($parstack,$parser,$safeeval) = @_; 2196: my $current_row = $Apache::londefdef::table[-1]{'row_number'}; 2197: my $data=&Apache::lonxml::endredirection(); 2198: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 2199: if (defined $TeXwidth) { 2200: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2201: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2202: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2203: } else { 2204: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) { 2205: my $garbage_data=$data; 2206: my $fwidth=0; 2207: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { 2208: my $current_length=&recalc($1); 2209: $current_length=~/(\d+\.?\d*)/; 2210: if ($fwidth<$1) {$fwidth=$1;} 2211: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; 2212: } 2213: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) { 2214: my $current_length=$1; 2215: if ($fwidth<$current_length) {$fwidth=$current_length;} 2216: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//; 2217: } 2218: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2219: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; 2220: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2221: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2222: } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) { 2223: my $garbage_data=$data; 2224: my $fwidth=0; 2225: while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) { 2226: my $current_length=&recalc($1); 2227: $current_length=~/(\d+\.?\d*)/; 2228: if ($fwidth<$1) {$fwidth=$1;} 2229: $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; 2230: } 2231: while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { 2232: my $current_length=&recalc($1); 2233: $current_length=~/(\d+\.?\d*)/; 2234: if ($fwidth<$1) {$fwidth=$1;} 2235: $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; 2236: } 2237: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2238: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; 2239: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2240: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2241: $data=~s/\\\\\s*$//; 2242: } else { 2243: $data=~s/^\s+(\S.*)/$1/; 2244: $data=~s/(.*\S)\s+$/$1/; 2245: $data=~s/(\s)+/$1/; 2246: my ($current_length,$min_length)=(0,0); 2247: if ($data=~/\\vskip/) { 2248: my $newdata=$data; 2249: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g; 2250: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata); 2251: foreach my $elementdata (@newdata) { 2252: my $lengthnewdata=2.5*&LATEX_length($elementdata); 2253: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;} 2254: my @words=split(/ /,$elementdata); 2255: foreach my $word (@words) { 2256: my $lengthword=2.5*&LATEX_length($word); 2257: if ($min_length<$lengthword) {$min_length=$lengthword;} 2258: } 2259: } 2260: } else { 2261: $current_length=2.5*&LATEX_length($data); 2262: my @words=split(/ /,$data); 2263: foreach my $word (@words) { 2264: my $lengthword=2*&LATEX_length($word); 2265: if ($min_length<$lengthword) {$min_length=$lengthword;} 2266: } 2267: } 2268: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2269: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2270: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length; 2271: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length; 2272: } 2273: } 2274: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) { 2275: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; 2276: } 2277: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data; 2278: return''; 2279: } 2280: 2281: sub end_td { 2282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2283: my $currentstring = ''; 2284: if ($target eq 'web') { 2285: $currentstring = $token->[2]; 2286: } elsif ($target eq 'tex') { 2287: $Apache::londefdef::TD_redirection =0; 2288: &end_td_tex($parstack,$parser,$safeeval); 2289: } 2290: return $currentstring; 2291: } 2292: 2293: #-- <th> tag (end tag optional) 2294: sub start_th { 2295: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2296: my $currentstring = ''; 2297: if ($target eq 'web') { 2298: $currentstring = $token->[4]; 2299: } elsif ($target eq 'tex') { 2300: $Apache::londefdef::TD_redirection = 1; 2301: &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval); 2302: } 2303: return $currentstring; 2304: } 2305: 2306: sub tagg_check { 2307: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_; 2308: my @ar=@$parstack; 2309: for (my $i=$#ar-1;$i>=0;$i--) { 2310: if (lc($$tagstack[$i]) eq $good_tag) { 2311: &start_th_tex($parstack,$parser,$safeeval); 2312: last; 2313: } elsif (lc($$tagstack[$i]) eq $bad_tag) { 2314: splice @ar, $i+1; 2315: &end_th_tex(\@ar,$parser,$safeeval); 2316: &start_th_tex($parstack,$parser,$safeeval); 2317: last; 2318: } 2319: } 2320: return ''; 2321: } 2322: 2323: sub start_th_tex { 2324: my ($parstack,$parser,$safeeval) = @_; 2325: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); 2326: if ($alignchar eq '') { 2327: $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1]; 2328: } 2329: push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar; 2330: $Apache::londefdef::table[-1]{'counter_columns'}++; 2331: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 2332: if (defined $TeXwidth) { 2333: my $current_length=&recalc($TeXwidth); 2334: $current_length=~/(\d+\.?\d*)/; 2335: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1; 2336: } 2337: &Apache::lonxml::startredirection(); 2338: return ''; 2339: } 2340: 2341: sub end_th_tex { 2342: my ($parstack,$parser,$safeeval) = @_; 2343: my $current_row = $Apache::londefdef::table[-1]{'row_number'}; 2344: my $data=&Apache::lonxml::endredirection(); 2345: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); 2346: if (defined $TeXwidth) { 2347: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2348: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2349: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2350: } else { 2351: if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) { 2352: my $garbage_data=$data; 2353: my $fwidth=0; 2354: while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { 2355: my $current_length=&recalc($1); 2356: $current_length=~/(\d+\.?\d*)/; 2357: if ($fwidth<$1) {$fwidth=$1;} 2358: $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; 2359: } 2360: while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) { 2361: my $current_length=$1; 2362: if ($fwidth<$current_length) {$fwidth=$current_length;} 2363: $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//; 2364: } 2365: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2366: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; 2367: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2368: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2369: } else { 2370: $data=~s/^\s+(\S.*)/$1/; 2371: $data=~s/(.*\S)\s+$/$1/; 2372: $data=~s/(\s)+/$1/; 2373: my ($current_length,$min_length)=(0,0); 2374: if ($data=~/\\vskip/) { 2375: my $newdata=$data; 2376: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g; 2377: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata); 2378: foreach my $elementdata (@newdata) { 2379: my $lengthnewdata=2.5*&LATEX_length($elementdata); 2380: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;} 2381: my @words=split(/ /,$elementdata); 2382: foreach my $word (@words) { 2383: my $lengthword=2.5*&LATEX_length($word); 2384: if ($min_length<$lengthword) {$min_length=$lengthword;} 2385: } 2386: } 2387: } else { 2388: $current_length=2.5*&LATEX_length($data); 2389: my @words=split(/ /,$data); 2390: foreach my $word (@words) { 2391: my $lengthword=2*&LATEX_length($word); 2392: if ($min_length<$lengthword) {$min_length=$lengthword;} 2393: } 2394: } 2395: push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2396: push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; 2397: push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length; 2398: push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length; 2399: } 2400: } 2401: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) { 2402: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; 2403: } 2404: #make data bold 2405: $data='\textbf{'.$data.'}'; 2406: push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data; 2407: return''; 2408: } 2409: 2410: sub end_th { 2411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2412: my $currentstring = ''; 2413: if ($target eq 'web') { 2414: $currentstring = $token->[2]; 2415: } elsif ($target eq 'tex') { 2416: $Apache::londefdef::TD_redirection =0; 2417: &end_th_tex($parstack,$parser,$safeeval); 2418: } 2419: return $currentstring; 2420: } 2421: 2422: #-- <img> tag (end tag forbidden) 2423: sub start_img { 2424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2425: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval, 2426: undef,1); 2427: if (not $src and ($target eq 'web' or $target eq 'tex')) { 2428: my $inside = &Apache::lonxml::get_all_text("/img",$parser); 2429: return ''; 2430: } 2431: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src; 2432: my $currentstring = ''; 2433: my $scaling = .3; 2434: if ($target eq 'web') { 2435: if ($ENV{'browser.imagesuppress'} ne 'on') { 2436: $currentstring.= $token->[4]; 2437: } else { 2438: my $alttag= &Apache::lonxml::get_param 2439: ('alt',$parstack,$safeeval,undef,1); 2440: unless ($alttag) { 2441: $alttag=&Apache::lonmeta::alttag 2442: ($Apache::lonxml::pwd[-1],$src); 2443: } 2444: $currentstring.='[IMAGE: '.$alttag.']'; 2445: } 2446: } elsif ($target eq 'tex') { 2447: # 2448: # The alignment will require some superstructure to be put around 2449: # the \includegraphics stuff. At present we can only partially 2450: # simulate the alignments offered by html. 2451: # 2452: # 2453: my $align = lc(&Apache::lonxml::get_param('align', 2454: $parstack, 2455: $safeeval, 2456: undef,1)); 2457: if(!$align) { 2458: $align = "bottom"; # This is html's default so it's ours too. 2459: } 2460: # 2461: &Apache::lonxml::debug("Alignemnt = $align"); 2462: # LaTeX's image/text wrapping is really bad since it wants to 2463: # make figures float. 2464: # The user has the optional parameter (applicable only to l/r 2465: # alignment to use the picins/parpic directive to get wrapped text 2466: # this is also imperfect.. that's why we give them a choice... 2467: # so they can't yell at us for our choice. 2468: # 2469: my $latex_rendering = &Apache::lonxml::get_param('TeXwrap', 2470: $parstack, 2471: $safeeval, 2472: undef,0); 2473: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering"); 2474: if(!$latex_rendering) { 2475: $latex_rendering = "parbox"; 2476: } 2477: &Apache::lonxml::debug("LaTeX rendering = $latex_rendering"); 2478: 2479: my $oldSRC=$src; 2480: $oldSRC=~s/\.(gif|jpg|png)$/\.eps/; 2481: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); 2482: #if original gif/jpg/png file exist do following: 2483: if (-e $src) { 2484: #what is the image size? 2485: my $width_param=&image_width($src,$scaling,$parstack,$safeeval); 2486: my $height_param=&image_height($src,$scaling,$parstack,$safeeval); 2487: my ($file,$path)=&file_path($src); 2488: my $newsrc = $src; 2489: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i; 2490: &Apache::lonnet::repcopy($oldSRC); 2491: $file=~s/\.(gif|jpg|png)$/.eps/i; 2492: #where can we find the picture? 2493: if (-e $newsrc) { 2494: #eps counterpart for image exist 2495: if ($path) { 2496: $currentstring .= '\graphicspath{{'.$path.'}}' 2497: .'\includegraphics[width='.$width_param.' mm,height='.$height_param.'mm]{'.$file.'} '; 2498: } 2499: } else { 2500: #there is no eps counterpart for image - check for ps one 2501: $newsrc =~ s/\.eps$/\.ps/; 2502: if (-e $newsrc) { 2503: #ps counterpart for image exist 2504: $file =~ s/\.eps$/\.ps/; 2505: if ($path) { 2506: $currentstring .= '\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; 2507: } 2508: } else { 2509: #care about eps dynamical generation 2510: $currentstring.=&eps_generation($src,$file,$width_param); 2511: } 2512: } 2513: # If there's an alignment specification we need to honor it here. 2514: # For the horizontal alignments, we will also honor the 2515: # value of the latex specfication. The default is parbox, 2516: # and that's used for illegal values too. 2517: # 2518: # Even though we set a default alignment value, the user 2519: # could have given us an illegal value. In that case we 2520: # just use the default alignment of bottom.. 2521: if ($align eq "top") { 2522: $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}'; 2523: } elsif (($align eq "center") || ($align eq "middle")) { # Being kind 2524: my $offset = $height_param/2; 2525: $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}'; 2526: } elsif ($align eq "left") { 2527: if ($latex_rendering eq "parpic") { 2528: $currentstring = '\parpic[l]{'.$currentstring.'}'; 2529: } else { # parbox rendering 2530: $currentstring = '\newline'."\n".'\parbox{'.$width_param.'mm}{'.$currentstring.'}'; 2531: } 2532: } elsif ($align eq "right") { 2533: if ($latex_rendering eq "parpic") { 2534: $currentstring = '\parpic[r]{'.$currentstring.'}'; 2535: } else { # parbox rendering. 2536: $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}' 2537: .$currentstring.'\end{flushright}} \newline'."\n"; 2538: } 2539: } else { # Bottom is also default. 2540: # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}'; 2541: } 2542: } else { 2543: #original image file doesn't exist so check the alt attribute 2544: my $alt = 2545: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1); 2546: unless ($alt) { 2547: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src); 2548: } 2549: 2550: if ($alt) { 2551: $currentstring .= ' '.$alt.' '; 2552: } else { 2553: #<allow> tag will care about replication 2554: } 2555: } 2556: } elsif ($target eq 'edit') { 2557: $currentstring .=&Apache::edit::tag_start($target,$token); 2558: $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70). 2559: &Apache::edit::browse('src',undef,'alt').' '. 2560: &Apache::edit::search('src',undef,'alt').'<br />'; 2561: $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />'; 2562: $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5); 2563: $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />'; 2564: $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5); 2565: $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5); 2566: $currentstring .=&Apache::edit::select_arg('Alignment:','align', 2567: ['','bottom','middle','top','left','right'],$token,5); 2568: $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 2569: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval); 2570: my $alt=&Apache::lonxml::get_param('alt',$parstack,$safeeval); 2571: my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval); 2572: my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval); 2573: $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" '; 2574: if ($width) { $currentstring.=' width="'.$width.'" '; } 2575: if ($height) { $currentstring.=' height="'.$height.'" '; } 2576: $currentstring .= ' />'; 2577: } elsif ($target eq 'modified') { 2578: my ($osrc,$owidth,$oheight)= 2579: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'}); 2580: my $ctag=&Apache::edit::get_new_args($token,$parstack, 2581: $safeeval,'src','alt','align', 2582: 'TeXwidth','TeXheight', 2583: 'width','height'); 2584: my ($nsrc,$nwidth,$nheight)= 2585: ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'}); 2586: my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc); 2587: &image_replication($loc); 2588: my ($iwidth,$iheight); 2589: if (-e $loc) { 2590: my $image = Image::Magick->new; 2591: $image->Read($loc); 2592: ($iwidth, $iheight) = ($image->Get('width'), 2593: $image->Get('height')); 2594: } 2595: if ($osrc ne $nsrc || (!$nwidth && !$nheight)) { 2596: # changed image or no size specified, 2597: # if they didn't explicitly change the 2598: # width or height use the ones from the image 2599: if ($iwidth && $iheight) { 2600: if ($owidth == $nwidth || (!$nwidth && !$nheight)) { 2601: $token->[2]{'width'} = $iwidth;$ctag=1; 2602: } 2603: if ($oheight == $nheight || (!$nwidth && !$nheight)) { 2604: $token->[2]{'height'}=$iheight;$ctag=1; 2605: } 2606: } 2607: } 2608: my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'}); 2609: # if we don't have a width or height 2610: if ($iwidth && $cwidth && !$cheight) { 2611: $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1; 2612: } 2613: if ($iheight && $cheight && !$cwidth) { 2614: $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1; 2615: } 2616: if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);} 2617: } 2618: return $currentstring; 2619: } 2620: 2621: sub end_img { 2622: my ($target,$token) = @_; 2623: my $currentstring = ''; 2624: if ($target eq 'web') { 2625: $currentstring = $token->[2]; 2626: } elsif ($target eq 'tex') { 2627: $currentstring = ''; 2628: } 2629: return $currentstring; 2630: } 2631: 2632: #-- <applet> tag (end tag required) 2633: sub start_applet { 2634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2635: 2636: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1); 2637: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code; 2638: 2639: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval, 2640: undef,1); 2641: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive; 2642: 2643: my $currentstring = ''; 2644: if ($target eq 'web') { 2645: if ($ENV{'browser.appletsuppress'} ne 'on') { 2646: $currentstring = $token->[4]; 2647: } else { 2648: my $alttag= &Apache::lonxml::get_param('alt',$parstack, 2649: $safeeval,undef,1); 2650: unless ($alttag) { 2651: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1], 2652: $code); 2653: } 2654: $currentstring='[APPLET: '.$alttag.']'; 2655: } 2656: } elsif ($target eq 'tex') { 2657: my $alttag= &Apache::lonxml::get_param('alt',$parstack, 2658: $safeeval,undef,1); 2659: unless ($alttag) { 2660: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval, 2661: undef,1); 2662: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1], 2663: $code); 2664: } 2665: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag. 2666: '.}\end{center}'; 2667: } 2668: return $currentstring; 2669: } 2670: 2671: sub end_applet { 2672: my ($target,$token) = @_; 2673: my $currentstring = ''; 2674: if ($target eq 'web') { 2675: $currentstring = $token->[2]; 2676: } elsif ($target eq 'tex') { 2677: } 2678: return $currentstring; 2679: } 2680: 2681: #-- <embed> tag (end tag optional/required) 2682: sub start_embed { 2683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2684: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); 2685: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src; 2686: my $currentstring = ''; 2687: if ($target eq 'web') { 2688: if ($ENV{'browser.embedsuppress'} ne 'on') { 2689: $currentstring = $token->[4]; 2690: } else { 2691: my $alttag=&Apache::lonxml::get_param 2692: ('alt',$parstack,$safeeval,undef,1); 2693: unless ($alttag) { 2694: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src); 2695: } 2696: $currentstring='[EMBED: '.$alttag.']'; 2697: } 2698: } elsif ($target eq 'tex') { 2699: } 2700: return $currentstring; 2701: } 2702: 2703: sub end_embed { 2704: my ($target,$token) = @_; 2705: my $currentstring = ''; 2706: if ($target eq 'web') { 2707: $currentstring = $token->[2]; 2708: } elsif ($target eq 'tex') { 2709: } 2710: return $currentstring; 2711: } 2712: 2713: #-- <param> tag (end tag forbidden) 2714: sub start_param { 2715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2716: if (&Apache::lonxml::get_param 2717: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) { 2718: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= 2719: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1); 2720: } 2721: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= 2722: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); 2723: my $currentstring = ''; 2724: if ($target eq 'web') { 2725: $currentstring = $token->[4]; 2726: } elsif ($target eq 'tex') { 2727: } 2728: return $currentstring; 2729: } 2730: 2731: sub end_param { 2732: my ($target,$token) = @_; 2733: my $currentstring = ''; 2734: if ($target eq 'web') { 2735: $currentstring = $token->[2]; 2736: } elsif ($target eq 'tex') { 2737: } 2738: return $currentstring; 2739: } 2740: 2741: #-- <allow> tag 2742: sub start_allow { 2743: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2744: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); 2745: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); 2746: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= 2747: &Apache::lonnet::clutter($src); 2748: if ($target eq 'tex') { &image_replication($src); } 2749: my $result; 2750: if ($target eq 'edit') { 2751: $result .=&Apache::edit::tag_start($target,$token); 2752: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70); 2753: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row(); 2754: } elsif ($target eq 'modified') { 2755: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 2756: $safeeval,'src'); 2757: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } 2758: } 2759: return $result; 2760: } 2761: 2762: sub end_allow { 2763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2764: if ( $target eq 'edit') { return (&Apache::edit::end_table()); } 2765: return ''; 2766: } 2767: 2768: #-- Frames (end tag required) 2769: #-- <frameset> 2770: sub start_frameset { 2771: my ($target,$token) = @_; 2772: my $currentstring = ''; 2773: if ($target eq 'web') { 2774: if (!$Apache::lonxml::registered && 2775: $ENV{'request.state'} eq 'published') { 2776: $currentstring.='<head>'. 2777: &Apache::lonmenu::registerurl(undef,$target).'</head>'; 2778: } 2779: my $onLoad=''; 2780: foreach my $key (keys(%{$token->[2]})) { 2781: if ($key =~ /^onload$/i) { 2782: $onLoad.=$token->[2]->{$key}.';'; 2783: delete($token->[2]->{$key}); 2784: } 2785: } 2786: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad; 2787: my $onUnload=''; 2788: foreach my $key (keys(%{$token->[2]})) { 2789: if ($key =~ /^onunload$/i) { 2790: $onUnload.=$token->[2]->{$key}.';'; 2791: delete($token->[2]->{$key}); 2792: } 2793: } 2794: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents(). 2795: ';'.$onUnload; 2796: 2797: $currentstring .= '<'.$token->[1]; 2798: foreach (keys %{$token->[2]}) { 2799: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"'; 2800: } 2801: $currentstring.='>'; 2802: } 2803: return $currentstring; 2804: } 2805: 2806: sub end_frameset { 2807: my ($target,$token) = @_; 2808: my $currentstring = ''; 2809: if ($target eq 'web') { 2810: $currentstring = $token->[2]; 2811: } 2812: return $currentstring; 2813: } 2814: 2815: #-- <xmp> (end tag required) 2816: sub start_xmp { 2817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2818: my $currentstring = ''; 2819: if ($target eq 'web') { 2820: $currentstring .= $token->[4]; 2821: } elsif ($target eq 'tex') { 2822: $currentstring .= '\begin{verbatim}'; 2823: } 2824: return $currentstring; 2825: } 2826: 2827: sub end_xmp { 2828: my ($target,$token) = @_; 2829: my $currentstring = ''; 2830: if ($target eq 'web') { 2831: $currentstring .= $token->[2]; 2832: } elsif ($target eq 'tex') { 2833: $currentstring .= '\end{verbatim}'; 2834: } 2835: return $currentstring; 2836: } 2837: 2838: #-- <pre> (end tag required) 2839: sub start_pre { 2840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2841: my $currentstring = ''; 2842: if ($target eq 'web') { 2843: $currentstring .= $token->[4]; 2844: } elsif ($target eq 'tex') { 2845: $currentstring .= '\begin{verbatim}'; 2846: } 2847: return $currentstring; 2848: } 2849: 2850: sub end_pre { 2851: my ($target,$token) = @_; 2852: my $currentstring = ''; 2853: if ($target eq 'web') { 2854: $currentstring .= $token->[2]; 2855: } elsif ($target eq 'tex') { 2856: $currentstring .= '\end{verbatim}'; 2857: } 2858: return $currentstring; 2859: } 2860: 2861: #-- <insert> 2862: sub start_insert { 2863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2864: my $currentstring = ''; 2865: if ($target eq 'web') { 2866: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1); 2867: $currentstring .= '<b>'.$display.'</b>';; 2868: } 2869: return $currentstring; 2870: } 2871: 2872: sub end_insert { 2873: my ($target,$token) = @_; 2874: my $currentstring = ''; 2875: if ($target eq 'web') { 2876: $currentstring .= ''; 2877: } 2878: return $currentstring; 2879: } 2880: 2881: #-- <externallink> 2882: sub start_externallink { 2883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2884: my $currentstring = ''; 2885: if ($target eq 'web') { 2886: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1); 2887: $currentstring .= '<b>'.$display.'</b>';; 2888: } 2889: return $currentstring; 2890: } 2891: 2892: sub end_externallink { 2893: my ($target,$token) = @_; 2894: my $currentstring = ''; 2895: if ($target eq 'web') { 2896: $currentstring .= ''; 2897: } 2898: return $currentstring; 2899: } 2900: 2901: #-- <blankspace heigth=""> 2902: sub start_blankspace { 2903: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; 2904: my $currentstring = ''; 2905: if ($target eq 'tex') { 2906: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1); 2907: $currentstring .= '\vskip '.$howmuch.' '; 2908: } 2909: return $currentstring; 2910: } 2911: 2912: sub end_blankspace { 2913: my ($target,$token) = @_; 2914: my $currentstring = ''; 2915: if ($target eq 'tex') { 2916: $currentstring .= ''; 2917: } 2918: return $currentstring; 2919: } 2920: 2921: #-- <abbr> tag (end tag required) 2922: sub start_abbr { 2923: my ($target,$token) = @_; 2924: my $currentstring = ''; 2925: if ($target eq 'web') { 2926: $currentstring = $token->[4]; 2927: } 2928: return $currentstring; 2929: } 2930: 2931: sub end_abbr { 2932: my ($target,$token) = @_; 2933: my $currentstring = ''; 2934: if ($target eq 'web') { 2935: $currentstring = $token->[2]; 2936: } 2937: return $currentstring; 2938: } 2939: 2940: #-- <acronym> tag (end tag required) 2941: sub start_acronym { 2942: my ($target,$token) = @_; 2943: my $currentstring = ''; 2944: if ($target eq 'web') { 2945: $currentstring = $token->[4]; 2946: } 2947: return $currentstring; 2948: } 2949: 2950: sub end_acronym { 2951: my ($target,$token) = @_; 2952: my $currentstring = ''; 2953: if ($target eq 'web') { 2954: $currentstring = $token->[2]; 2955: } 2956: return $currentstring; 2957: } 2958: 2959: #-- <area> tag (end tag forbidden) 2960: sub start_area { 2961: my ($target,$token) = @_; 2962: my $currentstring = ''; 2963: if ($target eq 'web') { 2964: $currentstring = $token->[4]; 2965: } 2966: return $currentstring; 2967: } 2968: 2969: sub end_area { 2970: my ($target,$token) = @_; 2971: my $currentstring = ''; 2972: if ($target eq 'web') { 2973: $currentstring = $token->[2]; 2974: } 2975: return $currentstring; 2976: } 2977: 2978: #-- <base> tag (end tag forbidden) 2979: sub start_base { 2980: my ($target,$token) = @_; 2981: my $currentstring = ''; 2982: if ($target eq 'web') { 2983: $currentstring = $token->[4]; 2984: } 2985: return $currentstring; 2986: } 2987: 2988: sub end_base { 2989: my ($target,$token) = @_; 2990: my $currentstring = ''; 2991: if ($target eq 'web') { 2992: $currentstring = $token->[2]; 2993: } 2994: return $currentstring; 2995: } 2996: 2997: #-- <bdo> tag (end tag required) 2998: sub start_bdo { 2999: my ($target,$token) = @_; 3000: my $currentstring = ''; 3001: if ($target eq 'web') { 3002: $currentstring = $token->[4]; 3003: } 3004: return $currentstring; 3005: } 3006: 3007: sub end_bdo { 3008: my ($target,$token) = @_; 3009: my $currentstring = ''; 3010: if ($target eq 'web') { 3011: $currentstring = $token->[2]; 3012: } 3013: return $currentstring; 3014: } 3015: 3016: #-- <bgsound> tag (end tag optional) 3017: sub start_bgsound { 3018: my ($target,$token) = @_; 3019: my $currentstring = ''; 3020: if ($target eq 'web') { 3021: $currentstring = $token->[4]; 3022: } 3023: return $currentstring; 3024: } 3025: 3026: sub end_bgsound { 3027: my ($target,$token) = @_; 3028: my $currentstring = ''; 3029: if ($target eq 'web') { 3030: $currentstring = $token->[2]; 3031: } 3032: return $currentstring; 3033: } 3034: 3035: #-- <blink> tag (end tag required) 3036: sub start_blink { 3037: my ($target,$token) = @_; 3038: my $currentstring = ''; 3039: if ($target eq 'web') { 3040: $currentstring = $token->[4]; 3041: } 3042: return $currentstring; 3043: } 3044: 3045: sub end_blink { 3046: my ($target,$token) = @_; 3047: my $currentstring = ''; 3048: if ($target eq 'web') { 3049: $currentstring = $token->[2]; 3050: } 3051: return $currentstring; 3052: } 3053: 3054: #-- <blockquote> tag (end tag required) 3055: sub start_blockquote { 3056: my ($target,$token) = @_; 3057: my $currentstring = ''; 3058: if ($target eq 'web') { 3059: $currentstring = $token->[4]; 3060: } 3061: return $currentstring; 3062: } 3063: 3064: sub end_blockquote { 3065: my ($target,$token) = @_; 3066: my $currentstring = ''; 3067: if ($target eq 'web') { 3068: $currentstring = $token->[2]; 3069: } 3070: return $currentstring; 3071: } 3072: 3073: #-- <button> tag (end tag required) 3074: sub start_button { 3075: my ($target,$token) = @_; 3076: my $currentstring = ''; 3077: if ($target eq 'web') { 3078: $currentstring = $token->[4]; 3079: } 3080: return $currentstring; 3081: } 3082: 3083: sub end_button { 3084: my ($target,$token) = @_; 3085: my $currentstring = ''; 3086: if ($target eq 'web') { 3087: $currentstring = $token->[2]; 3088: } 3089: return $currentstring; 3090: } 3091: 3092: #-- <caption> tag (end tag required) 3093: sub start_caption { 3094: my ($target,$token) = @_; 3095: my $currentstring = ''; 3096: if ($target eq 'web') { 3097: $currentstring = $token->[4]; 3098: } 3099: return $currentstring; 3100: } 3101: 3102: sub end_caption { 3103: my ($target,$token) = @_; 3104: my $currentstring = ''; 3105: if ($target eq 'web') { 3106: $currentstring = $token->[2]; 3107: } 3108: return $currentstring; 3109: } 3110: 3111: #-- <col> tag (end tag forbdden) 3112: sub start_col { 3113: my ($target,$token) = @_; 3114: my $currentstring = ''; 3115: if ($target eq 'web') { 3116: $currentstring = $token->[4]; 3117: } 3118: return $currentstring; 3119: } 3120: 3121: sub end_col { 3122: my ($target,$token) = @_; 3123: my $currentstring = ''; 3124: if ($target eq 'web') { 3125: $currentstring = $token->[2]; 3126: } 3127: return $currentstring; 3128: } 3129: 3130: #-- <colgroup> tag (end tag optional) 3131: sub start_colgroup { 3132: my ($target,$token) = @_; 3133: my $currentstring = ''; 3134: if ($target eq 'web') { 3135: $currentstring = $token->[4]; 3136: } 3137: return $currentstring; 3138: } 3139: 3140: sub end_colgroup { 3141: my ($target,$token) = @_; 3142: my $currentstring = ''; 3143: if ($target eq 'web') { 3144: $currentstring = $token->[2]; 3145: } 3146: return $currentstring; 3147: } 3148: 3149: #-- <del> tag (end tag required) 3150: sub start_del { 3151: my ($target,$token) = @_; 3152: my $currentstring = ''; 3153: if ($target eq 'web') { 3154: $currentstring = $token->[4]; 3155: } 3156: return $currentstring; 3157: } 3158: 3159: sub end_del { 3160: my ($target,$token) = @_; 3161: my $currentstring = ''; 3162: if ($target eq 'web') { 3163: $currentstring = $token->[2]; 3164: } 3165: return $currentstring; 3166: } 3167: 3168: #-- <fieldset> tag (end tag required) 3169: sub start_fieldset { 3170: my ($target,$token) = @_; 3171: my $currentstring = ''; 3172: if ($target eq 'web') { 3173: $currentstring = $token->[4]; 3174: } 3175: return $currentstring; 3176: } 3177: 3178: sub end_fieldset { 3179: my ($target,$token) = @_; 3180: my $currentstring = ''; 3181: if ($target eq 'web') { 3182: $currentstring = $token->[2]; 3183: } 3184: return $currentstring; 3185: } 3186: 3187: #-- <frame> tag (end tag forbidden) 3188: sub start_frame { 3189: my ($target,$token) = @_; 3190: my $currentstring = ''; 3191: if ($target eq 'web') { 3192: $currentstring = $token->[4]; 3193: } 3194: return $currentstring; 3195: } 3196: 3197: sub end_frame { 3198: my ($target,$token) = @_; 3199: my $currentstring = ''; 3200: if ($target eq 'web') { 3201: $currentstring = $token->[2]; 3202: } 3203: return $currentstring; 3204: } 3205: 3206: #-- <iframe> tag (end tag required) 3207: sub start_iframe { 3208: my ($target,$token) = @_; 3209: my $currentstring = ''; 3210: if ($target eq 'web') { 3211: $currentstring = $token->[4]; 3212: } 3213: return $currentstring; 3214: } 3215: 3216: sub end_iframe { 3217: my ($target,$token) = @_; 3218: my $currentstring = ''; 3219: if ($target eq 'web') { 3220: $currentstring = $token->[2]; 3221: } 3222: return $currentstring; 3223: } 3224: 3225: #-- <ins> tag (end tag required) 3226: sub start_ins { 3227: my ($target,$token) = @_; 3228: my $currentstring = ''; 3229: if ($target eq 'web') { 3230: $currentstring = $token->[4]; 3231: } 3232: return $currentstring; 3233: } 3234: 3235: sub end_ins { 3236: my ($target,$token) = @_; 3237: my $currentstring = ''; 3238: if ($target eq 'web') { 3239: $currentstring = $token->[2]; 3240: } 3241: return $currentstring; 3242: } 3243: 3244: #-- <isindex> tag (end tag forbidden) 3245: sub start_isindex { 3246: my ($target,$token) = @_; 3247: my $currentstring = ''; 3248: if ($target eq 'web') { 3249: $currentstring = $token->[4]; 3250: } 3251: return $currentstring; 3252: } 3253: 3254: sub end_isindex { 3255: my ($target,$token) = @_; 3256: my $currentstring = ''; 3257: if ($target eq 'web') { 3258: $currentstring = $token->[2]; 3259: } 3260: return $currentstring; 3261: } 3262: 3263: #-- <keygen> tag (end tag forbidden) 3264: sub start_keygen { 3265: my ($target,$token) = @_; 3266: my $currentstring = ''; 3267: if ($target eq 'web') { 3268: $currentstring = $token->[4]; 3269: } 3270: return $currentstring; 3271: } 3272: 3273: sub end_keygen { 3274: my ($target,$token) = @_; 3275: my $currentstring = ''; 3276: if ($target eq 'web') { 3277: $currentstring = $token->[2]; 3278: } 3279: return $currentstring; 3280: } 3281: 3282: #-- <label> tag 3283: sub start_label { 3284: my ($target,$token) = @_; 3285: my $currentstring = ''; 3286: if ($target eq 'web') { 3287: $currentstring = $token->[4]; 3288: } 3289: return $currentstring; 3290: } 3291: 3292: sub end_label { 3293: my ($target,$token) = @_; 3294: my $currentstring = ''; 3295: if ($target eq 'web') { 3296: $currentstring = $token->[2]; 3297: } 3298: return $currentstring; 3299: } 3300: 3301: #-- <layer> tag (end tag required) 3302: sub start_layer { 3303: my ($target,$token) = @_; 3304: my $currentstring = ''; 3305: if ($target eq 'web') { 3306: $currentstring = $token->[4]; 3307: } 3308: return $currentstring; 3309: } 3310: 3311: sub end_layer { 3312: my ($target,$token) = @_; 3313: my $currentstring = ''; 3314: if ($target eq 'web') { 3315: $currentstring = $token->[2]; 3316: } 3317: return $currentstring; 3318: } 3319: 3320: #-- <legend> tag (end tag required) 3321: sub start_legend { 3322: my ($target,$token) = @_; 3323: my $currentstring = ''; 3324: if ($target eq 'web') { 3325: $currentstring = $token->[4]; 3326: } 3327: return $currentstring; 3328: } 3329: 3330: sub end_legend { 3331: my ($target,$token) = @_; 3332: my $currentstring = ''; 3333: if ($target eq 'web') { 3334: $currentstring = $token->[2]; 3335: } 3336: return $currentstring; 3337: } 3338: 3339: #-- <link> tag (end tag forbidden) 3340: sub start_link { 3341: my ($target,$token) = @_; 3342: my $currentstring = ''; 3343: if ($target eq 'web') { 3344: $currentstring = $token->[4]; 3345: } 3346: return $currentstring; 3347: } 3348: 3349: sub end_link { 3350: my ($target,$token) = @_; 3351: my $currentstring = ''; 3352: if ($target eq 'web') { 3353: $currentstring = $token->[2]; 3354: } 3355: return $currentstring; 3356: } 3357: 3358: #-- <marquee> tag (end tag optional) 3359: sub start_marquee { 3360: my ($target,$token) = @_; 3361: my $currentstring = ''; 3362: if ($target eq 'web') { 3363: $currentstring = $token->[4]; 3364: } 3365: return $currentstring; 3366: } 3367: 3368: sub end_marquee { 3369: my ($target,$token) = @_; 3370: my $currentstring = ''; 3371: if ($target eq 'web') { 3372: $currentstring = $token->[2]; 3373: } 3374: return $currentstring; 3375: } 3376: 3377: #-- <multicol> tag (end tag required) 3378: sub start_multicol { 3379: my ($target,$token) = @_; 3380: my $currentstring = ''; 3381: if ($target eq 'web') { 3382: $currentstring = $token->[4]; 3383: } 3384: return $currentstring; 3385: } 3386: 3387: sub end_multicol { 3388: my ($target,$token) = @_; 3389: my $currentstring = ''; 3390: if ($target eq 'web') { 3391: $currentstring = $token->[2]; 3392: } 3393: return $currentstring; 3394: } 3395: 3396: #-- <nobr> tag (end tag required) 3397: sub start_nobr { 3398: my ($target,$token) = @_; 3399: my $currentstring = ''; 3400: if ($target eq 'web') { 3401: $currentstring = $token->[4]; 3402: } elsif ($target eq 'tex') { 3403: $currentstring='\mbox{'; 3404: } 3405: return $currentstring; 3406: } 3407: 3408: sub end_nobr { 3409: my ($target,$token) = @_; 3410: my $currentstring = ''; 3411: if ($target eq 'web') { 3412: $currentstring = $token->[2]; 3413: } elsif ($target eq 'tex') { 3414: $currentstring='}'; 3415: } 3416: return $currentstring; 3417: } 3418: 3419: #-- <noembed> tag (end tag required) 3420: sub start_noembed { 3421: my ($target,$token) = @_; 3422: my $currentstring = ''; 3423: if ($target eq 'web') { 3424: $currentstring = $token->[4]; 3425: } 3426: return $currentstring; 3427: } 3428: 3429: sub end_noembed { 3430: my ($target,$token) = @_; 3431: my $currentstring = ''; 3432: if ($target eq 'web') { 3433: $currentstring = $token->[2]; 3434: } 3435: return $currentstring; 3436: } 3437: 3438: #-- <noframes> tag (end tag required) 3439: sub start_noframes { 3440: my ($target,$token) = @_; 3441: my $currentstring = ''; 3442: if ($target eq 'web') { 3443: $currentstring = $token->[4]; 3444: } 3445: return $currentstring; 3446: } 3447: 3448: sub end_noframes { 3449: my ($target,$token) = @_; 3450: my $currentstring = ''; 3451: if ($target eq 'web') { 3452: $currentstring = $token->[2]; 3453: } 3454: return $currentstring; 3455: } 3456: 3457: #-- <nolayer> tag (end tag required) 3458: sub start_nolayer { 3459: my ($target,$token) = @_; 3460: my $currentstring = ''; 3461: if ($target eq 'web') { 3462: $currentstring = $token->[4]; 3463: } 3464: return $currentstring; 3465: } 3466: 3467: sub end_nolayer { 3468: my ($target,$token) = @_; 3469: my $currentstring = ''; 3470: if ($target eq 'web') { 3471: $currentstring = $token->[2]; 3472: } 3473: return $currentstring; 3474: } 3475: 3476: #-- <noscript> tag (end tag required) 3477: sub start_noscript { 3478: my ($target,$token) = @_; 3479: my $currentstring = ''; 3480: if ($target eq 'web') { 3481: $currentstring = $token->[4]; 3482: } 3483: return $currentstring; 3484: } 3485: 3486: sub end_noscript { 3487: my ($target,$token) = @_; 3488: my $currentstring = ''; 3489: if ($target eq 'web') { 3490: $currentstring = $token->[2]; 3491: } 3492: return $currentstring; 3493: } 3494: 3495: #-- <object> tag (end tag required) 3496: sub start_object { 3497: my ($target,$token) = @_; 3498: my $currentstring = ''; 3499: if ($target eq 'web') { 3500: $currentstring = $token->[4]; 3501: } 3502: return $currentstring; 3503: } 3504: 3505: sub end_object { 3506: my ($target,$token) = @_; 3507: my $currentstring = ''; 3508: if ($target eq 'web') { 3509: $currentstring = $token->[2]; 3510: } 3511: return $currentstring; 3512: } 3513: 3514: #-- <optgroup> tag (end tag required) 3515: sub start_optgroup { 3516: my ($target,$token) = @_; 3517: my $currentstring = ''; 3518: if ($target eq 'web') { 3519: $currentstring = $token->[4]; 3520: } 3521: return $currentstring; 3522: } 3523: 3524: sub end_optgroup { 3525: my ($target,$token) = @_; 3526: my $currentstring = ''; 3527: if ($target eq 'web') { 3528: $currentstring = $token->[2]; 3529: } 3530: return $currentstring; 3531: } 3532: 3533: #-- <samp> tag (end tag required) 3534: sub start_samp { 3535: my ($target,$token) = @_; 3536: my $currentstring = ''; 3537: if ($target eq 'web') { 3538: $currentstring = $token->[4]; 3539: } elsif ($target eq 'tex') { 3540: $currentstring='\texttt{'; 3541: } 3542: return $currentstring; 3543: } 3544: 3545: sub end_samp { 3546: my ($target,$token) = @_; 3547: my $currentstring = ''; 3548: if ($target eq 'web') { 3549: $currentstring = $token->[2]; 3550: } elsif ($target eq 'tex') { 3551: $currentstring='}'; 3552: } 3553: return $currentstring; 3554: } 3555: 3556: #-- <server> tag 3557: sub start_server { 3558: my ($target,$token) = @_; 3559: my $currentstring = ''; 3560: if ($target eq 'web') { 3561: $currentstring = $token->[4]; 3562: } 3563: return $currentstring; 3564: } 3565: 3566: sub end_server { 3567: my ($target,$token) = @_; 3568: my $currentstring = ''; 3569: if ($target eq 'web') { 3570: $currentstring = $token->[2]; 3571: } 3572: return $currentstring; 3573: } 3574: 3575: #-- <spacer> tag (end tag forbidden) 3576: sub start_spacer { 3577: my ($target,$token) = @_; 3578: my $currentstring = ''; 3579: if ($target eq 'web') { 3580: $currentstring = $token->[4]; 3581: } 3582: return $currentstring; 3583: } 3584: 3585: sub end_spacer { 3586: my ($target,$token) = @_; 3587: my $currentstring = ''; 3588: if ($target eq 'web') { 3589: $currentstring = $token->[2]; 3590: } 3591: return $currentstring; 3592: } 3593: 3594: #-- <span> tag (end tag required) 3595: sub start_span { 3596: my ($target,$token) = @_; 3597: my $currentstring = ''; 3598: if ($target eq 'web') { 3599: $currentstring = $token->[4]; 3600: } 3601: return $currentstring; 3602: } 3603: 3604: sub end_span { 3605: my ($target,$token) = @_; 3606: my $currentstring = ''; 3607: if ($target eq 'web') { 3608: $currentstring = $token->[2]; 3609: } 3610: return $currentstring; 3611: } 3612: 3613: #-- <tbody> tag (end tag optional) 3614: sub start_tbody { 3615: my ($target,$token) = @_; 3616: my $currentstring = ''; 3617: if ($target eq 'web') { 3618: $currentstring = $token->[4]; 3619: } 3620: return $currentstring; 3621: } 3622: 3623: sub end_tbody { 3624: my ($target,$token) = @_; 3625: my $currentstring = ''; 3626: if ($target eq 'web') { 3627: $currentstring = $token->[2]; 3628: } 3629: return $currentstring; 3630: } 3631: 3632: #-- <tfoot> tag (end tag optional) 3633: sub start_tfoot { 3634: my ($target,$token) = @_; 3635: my $currentstring = ''; 3636: if ($target eq 'web') { 3637: $currentstring = $token->[4]; 3638: } 3639: return $currentstring; 3640: } 3641: 3642: sub end_tfoot { 3643: my ($target,$token) = @_; 3644: my $currentstring = ''; 3645: if ($target eq 'web') { 3646: $currentstring = $token->[2]; 3647: } 3648: return $currentstring; 3649: } 3650: 3651: #-- <thead> tag (end tag optional) 3652: sub start_thead { 3653: my ($target,$token) = @_; 3654: my $currentstring = ''; 3655: if ($target eq 'web') { 3656: $currentstring = $token->[4]; 3657: } 3658: return $currentstring; 3659: } 3660: 3661: sub end_thead { 3662: my ($target,$token) = @_; 3663: my $currentstring = ''; 3664: if ($target eq 'web') { 3665: $currentstring = $token->[2]; 3666: } 3667: return $currentstring; 3668: } 3669: 3670: #-- <var> tag 3671: sub start_var { 3672: my ($target,$token) = @_; 3673: my $currentstring = ''; 3674: if ($target eq 'web') { 3675: $currentstring = $token->[4]; 3676: } elsif ($target eq 'tex') { 3677: $currentstring = '\textit{'; 3678: } 3679: return $currentstring; 3680: } 3681: 3682: sub end_var { 3683: my ($target,$token) = @_; 3684: my $currentstring = ''; 3685: if ($target eq 'web') { 3686: $currentstring = $token->[2]; 3687: } elsif ($target eq 'tex') { 3688: $currentstring = '}'; 3689: } 3690: return $currentstring; 3691: } 3692: 3693: #-- <wbr> tag (end tag forbidden) 3694: sub start_wbr { 3695: my ($target,$token) = @_; 3696: my $currentstring = ''; 3697: if ($target eq 'web') { 3698: $currentstring = $token->[4]; 3699: } 3700: return $currentstring; 3701: } 3702: 3703: sub end_wbr { 3704: my ($target,$token) = @_; 3705: my $currentstring = ''; 3706: if ($target eq 'web') { 3707: $currentstring = $token->[2]; 3708: } 3709: return $currentstring; 3710: } 3711: 3712: #-- <hideweboutput> tag 3713: sub start_hideweboutput { 3714: my ($target,$token) = @_; 3715: if ($target eq 'web') { 3716: &Apache::lonxml::startredirection(); 3717: } 3718: return ''; 3719: } 3720: 3721: sub end_hideweboutput { 3722: my ($target,$token) = @_; 3723: my $currentstring = ''; 3724: if ($target eq 'web') { 3725: $currentstring = &Apache::lonxml::endredirection(); 3726: } 3727: return ''; 3728: } 3729: 3730: 3731: sub image_replication { 3732: my $src = shift; 3733: if (not -e $src) { &Apache::lonnet::repcopy($src); } 3734: #replicates eps or ps 3735: my $epssrc = my $pssrc = $src; 3736: $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i; 3737: $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i; 3738: if (not -e $epssrc && not -e $pssrc) { 3739: my $result=&Apache::lonnet::repcopy($epssrc); 3740: if ($result ne OK) { &Apache::lonnet::repcopy($pssrc); } 3741: } 3742: return ''; 3743: } 3744: 3745: sub image_size { 3746: my ($src,$scaling,$parstack,$safeeval)=@_; 3747: #size of image from gif/jpg/jpeg/png 3748: my $image = Image::Magick->new; 3749: my $current_figure = $image->Read($src); 3750: my $width_param = $image->Get('width') * $scaling;; 3751: my $height_param = $image->Get('height') * $scaling;; 3752: undef $image; 3753: #do we have any specified LaTeX size of the picture? 3754: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval); 3755: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval); 3756: #do we have any specified web size of the picture? 3757: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval, 3758: undef,1); 3759: if ($TeXwidth ne '') { 3760: if ($TeXwidth=~/(\d+)\s*\%/) { 3761: $width_param = $1*$ENV{'form.textwidth'}/100; 3762: } else { 3763: $width_param = $TeXwidth; 3764: } 3765: } elsif ($TeXheight ne '') { 3766: $height_param = $TeXheight; 3767: $width_param = $TeXheight/$height_param*$width_param; 3768: } elsif ($width ne '') { 3769: $width_param = $width*$scaling; 3770: } 3771: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}} 3772: return ($height_param, $width_param); 3773: } 3774: 3775: sub image_width { 3776: my ($height, $width) = &image_size(@_); 3777: return $width; 3778: } 3779: # Not yet 100% sure this is correct in all circumstances.. 3780: # due to my uncertainty about mods to image_size. 3781: # 3782: sub image_height { 3783: my ($height, $width) = &image_size(@_); 3784: return $height; 3785: } 3786: 3787: sub eps_generation { 3788: my ($src,$file,$width_param) = @_; 3789: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat"; 3790: my $temp_file = Apache::File->new('>>'.$filename); 3791: print $temp_file "$src\n"; 3792: my $newsrc = $src; 3793: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i; 3794: $newsrc=~s/\/home\/httpd\/html\/res//; 3795: $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//; 3796: $newsrc=~s/\/\.\//\//; 3797: $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//; 3798: if ($newsrc=~/\/home\/httpd\/lonUsers\//) { 3799: $newsrc=~s/\/home\/httpd\/lonUsers//; 3800: $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//; 3801: } 3802: if ($newsrc=~/\/userfiles\//) { 3803: return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; 3804: } else { 3805: return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; 3806: } 3807: } 3808: 3809: sub file_path { 3810: my $src=shift; 3811: my ($file,$path); 3812: if ($src =~ m!(.*)/([^/]*)$!) { 3813: $file = $2; 3814: $path = $1.'/'; 3815: } 3816: return $file,$path; 3817: } 3818: 3819: sub recalc { 3820: my $argument = shift; 3821: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';} 3822: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/; 3823: my $value=$1; 3824: my $units=$2; 3825: if ($units eq 'cm') { 3826: $value*=10; 3827: } elsif ($units eq 'in') { 3828: $value*=25.4; 3829: } elsif ($units eq 'pc') { 3830: $value*=(25.4*12/72.27); 3831: } elsif ($units eq 'pt') { 3832: $value*=(25.4/72.27); 3833: } 3834: return $value.' mm'; 3835: } 3836: 3837: sub LATEX_length { 3838: my $garbage=shift; 3839: $garbage=~s/^\s+$//; 3840: $garbage=~s/^\s+(\S.*)/$1/;#space before 3841: $garbage=~s/(.*\S)\s+$/$1/;#space after 3842: $garbage=~s/(\s)+/$1/;#only one space 3843: $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...} 3844: $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$ 3845: $garbage=~s/([^\\])\$/$1/g;#$ 3846: $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...} 3847: $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g; 3848: $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g; 3849: $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g; 3850: $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g; 3851: $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g; 3852: $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g; 3853: $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g; 3854: #remove some other LaTeX command 3855: $garbage=~s|\\(\w+)\\|\\|g; 3856: $garbage=~s|\\(\w+)(\s*)|$2|g; 3857: $garbage=~s|\+|11|g; 3858: my $value=length($garbage); 3859: return $value; 3860: } 3861: 3862: 3863: 3864: 3865: 1; 3866: __END__