File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.326: download - view: text, annotated - select for diffs
Wed Aug 18 18:56:46 2004 UTC (19 years, 9 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
Started to do some cleanup according to your (Guy) remarks. Any critical notes would be welcomed.

    1: # The LearningOnline Network
    2: # Printout
    3: #
    4: # $Id: lonprintout.pm,v 1.326 2004/08/18 18:56:46 sakharuk Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: #
   29: package Apache::lonprintout;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common :http);
   33: use Apache::lonxml;
   34: use Apache::lonnet;
   35: use Apache::loncommon;
   36: use Apache::inputtags;
   37: use Apache::grades;
   38: use Apache::edit;
   39: use Apache::File();
   40: use Apache::lonnavmaps;
   41: use Apache::lonratedt;
   42: use POSIX qw(strftime);
   43: use Apache::lonlocal;
   44: use GDBM_File;
   45: 
   46: 
   47: my %hash;
   48: my $LaTeXwidth = 0;
   49: 
   50: 
   51: sub latex_header_footer_remove {
   52:     my $text = shift;
   53:     $text =~ s/\\end{document}//;
   54:     $text =~ s/\\documentclass([^&]*)\\begin{document}//;
   55:     return $text;
   56: }
   57: 
   58: 
   59: sub character_chart {
   60:     my $result = shift;	
   61:     $result =~ s/&\#0?0?(7|9);//g;
   62:     $result =~ s/&\#0?(10|13);//g;
   63:     $result =~ s/&\#0?32;/ /g;
   64:     $result =~ s/&\#0?33;/!/g;
   65:     $result =~ s/&(\#0?34|quot);/\"/g;
   66:     $result =~ s/&\#0?35;/\\\#/g;
   67:     $result =~ s/&\#0?36;/\\\$/g;
   68:     $result =~ s/&\#0?37;/\\%/g; 
   69:     $result =~ s/&(\#0?38|amp);/\\&/g; 
   70:     $result =~ s/&\#(0?39|146);/\'/g;
   71:     $result =~ s/&\#0?40;/(/g;
   72:     $result =~ s/&\#0?41;/)/g;
   73:     $result =~ s/&\#0?42;/\*/g;
   74:     $result =~ s/&\#0?43;/\+/g;
   75:     $result =~ s/&\#(0?44|130);/,/g;
   76:     $result =~ s/&\#0?45;/-/g;
   77:     $result =~ s/&\#0?46;/\./g;
   78:     $result =~ s/&\#0?47;/\//g;
   79:     $result =~ s/&\#0?48;/0/g;
   80:     $result =~ s/&\#0?49;/1/g;
   81:     $result =~ s/&\#0?50;/2/g;
   82:     $result =~ s/&\#0?51;/3/g;
   83:     $result =~ s/&\#0?52;/4/g;
   84:     $result =~ s/&\#0?53;/5/g;
   85:     $result =~ s/&\#0?54;/6/g;
   86:     $result =~ s/&\#0?55;/7/g;
   87:     $result =~ s/&\#0?56;/8/g;
   88:     $result =~ s/&\#0?57;/9/g;
   89:     $result =~ s/&\#0?58;/:/g;
   90:     $result =~ s/&\#0?59;/;/g;
   91:     $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
   92:     $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
   93:     $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
   94:     $result =~ s/&\#0?63;/\?/g;
   95:     $result =~ s/&\#0?65;/A/g;
   96:     $result =~ s/&\#0?66;/B/g;
   97:     $result =~ s/&\#0?67;/C/g;
   98:     $result =~ s/&\#0?68;/D/g;
   99:     $result =~ s/&\#0?69;/E/g;
  100:     $result =~ s/&\#0?70;/F/g;
  101:     $result =~ s/&\#0?71;/G/g;
  102:     $result =~ s/&\#0?72;/H/g;
  103:     $result =~ s/&\#0?73;/I/g;
  104:     $result =~ s/&\#0?74;/J/g;
  105:     $result =~ s/&\#0?75;/K/g;
  106:     $result =~ s/&\#0?76;/L/g;
  107:     $result =~ s/&\#0?77;/M/g;
  108:     $result =~ s/&\#0?78;/N/g;
  109:     $result =~ s/&\#0?79;/O/g;
  110:     $result =~ s/&\#0?80;/P/g;
  111:     $result =~ s/&\#0?81;/Q/g;
  112:     $result =~ s/&\#0?82;/R/g;
  113:     $result =~ s/&\#0?83;/S/g;
  114:     $result =~ s/&\#0?84;/T/g;
  115:     $result =~ s/&\#0?85;/U/g;
  116:     $result =~ s/&\#0?86;/V/g;
  117:     $result =~ s/&\#0?87;/W/g;
  118:     $result =~ s/&\#0?88;/X/g;
  119:     $result =~ s/&\#0?89;/Y/g;
  120:     $result =~ s/&\#0?90;/Z/g;
  121:     $result =~ s/&\#0?91;/[/g;
  122:     $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
  123:     $result =~ s/&\#0?93;/]/g;
  124:     $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
  125:     $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
  126:     $result =~ s/&\#(0?96|145);/\`/g;
  127:     $result =~ s/&\#0?97;/a/g;
  128:     $result =~ s/&\#0?98;/b/g;
  129:     $result =~ s/&\#0?99;/c/g;
  130:     $result =~ s/&\#100;/d/g;
  131:     $result =~ s/&\#101;/e/g;
  132:     $result =~ s/&\#102;/f/g;
  133:     $result =~ s/&\#103;/g/g;
  134:     $result =~ s/&\#104;/h/g;
  135:     $result =~ s/&\#105;/i/g;
  136:     $result =~ s/&\#106;/j/g;
  137:     $result =~ s/&\#107;/k/g;
  138:     $result =~ s/&\#108;/l/g;
  139:     $result =~ s/&\#109;/m/g;
  140:     $result =~ s/&\#110;/n/g;
  141:     $result =~ s/&\#111;/o/g;
  142:     $result =~ s/&\#112;/p/g;
  143:     $result =~ s/&\#113;/q/g;
  144:     $result =~ s/&\#114;/r/g;
  145:     $result =~ s/&\#115;/s/g;
  146:     $result =~ s/&\#116;/t/g;
  147:     $result =~ s/&\#117;/u/g;
  148:     $result =~ s/&\#118;/v/g;
  149:     $result =~ s/&\#119;/w/g;
  150:     $result =~ s/&\#120;/x/g;
  151:     $result =~ s/&\#121;/y/g;
  152:     $result =~ s/&\#122;/z/g;
  153:     $result =~ s/&\#123;/\\{/g;
  154:     $result =~ s/&\#124;/\|/g;
  155:     $result =~ s/&\#125;/\\}/g;
  156:     $result =~ s/&\#126;/\~/g;
  157:     $result =~ s/&\#131;/\\textflorin /g;
  158:     $result =~ s/&\#132;/\"/g;
  159:     $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
  160:     $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
  161:     $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
  162:     $result =~ s/&\#137;/\\textperthousand /g;
  163:     $result =~ s/&\#140;/{\\OE}/g;
  164:     $result =~ s/&\#147;/\`\`/g;
  165:     $result =~ s/&\#148;/\'\'/g;
  166:     $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
  167:     $result =~ s/&\#150;/--/g;
  168:     $result =~ s/&\#151;/---/g;
  169:     $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
  170:     $result =~ s/&\#153;/\\texttrademark /g;
  171:     $result =~ s/&\#156;/\\oe/g;
  172:     $result =~ s/&\#159;/\\\"Y/g;
  173:     $result =~ s/&(\#160|nbsp);/~/g;
  174:     $result =~ s/&(\#161|iexcl);/!\`/g;
  175:     $result =~ s/&(\#162|cent);/\\textcent /g;
  176:     $result =~ s/&(\#163|pound);/\\pounds /g; 
  177:     $result =~ s/&(\#164|curren);/\\textcurrency /g;
  178:     $result =~ s/&(\#165|yen);/\\textyen /g;
  179:     $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
  180:     $result =~ s/&(\#167|sect);/\\textsection /g;
  181:     $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
  182:     $result =~ s/&(\#169|copy);/\\copyright /g;
  183:     $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
  184:     $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
  185:     $result =~ s/&(\#173|shy);/ - /g;
  186:     $result =~ s/&(\#174|reg);/\\textregistered /g;
  187:     $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
  188:     $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
  189:     $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
  190:     $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
  191:     $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
  192:     $result =~ s/&(\#180|acute);/\\textacute /g;
  193:     $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
  194:     $result =~ s/&(\#182|para);/\\P/g;
  195:     $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
  196:     $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
  197:     $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
  198:     $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
  199:     $result =~ s/&(\#188|frac14);/\\textonequarter /g;
  200:     $result =~ s/&(\#189|frac12);/\\textonehalf /g;
  201:     $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
  202:     $result =~ s/&(\#191|iquest);/?\`/g;   
  203:     $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
  204:     $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
  205:     $result =~ s/&(\#194|Acirc);/\\^{A}/g;
  206:     $result =~ s/&(\#195|Atilde);/\\~{A}/g;
  207:     $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
  208:     $result =~ s/&(\#197|Aring);/{\\AA}/g;
  209:     $result =~ s/&(\#198|AElig);/{\\AE}/g;
  210:     $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
  211:     $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
  212:     $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
  213:     $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
  214:     $result =~ s/&(\#203|Euml);/\\\"{E}/g;
  215:     $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
  216:     $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
  217:     $result =~ s/&(\#206|Icirc);/\\^{I}/g;
  218:     $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
  219:     $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
  220:     $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
  221:     $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
  222:     $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
  223:     $result =~ s/&(\#213|Otilde);/\\~{O}/g;
  224:     $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
  225:     $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
  226:     $result =~ s/&(\#216|Oslash);/{\\O}/g;
  227:     $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
  228:     $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
  229:     $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
  230:     $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
  231:     $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
  232:     $result =~ s/&(\#223|szlig);/\\ss/g;
  233:     $result =~ s/&(\#224|agrave);/\\\`{a}/g;
  234:     $result =~ s/&(\#225|aacute);/\\\'{a}/g;
  235:     $result =~ s/&(\#226|acirc);/\\^{a}/g;
  236:     $result =~ s/&(\#227|atilde);/\\~{a}/g;
  237:     $result =~ s/&(\#228|auml);/\\\"{a}/g;
  238:     $result =~ s/&(\#229|aring);/{\\aa}/g;
  239:     $result =~ s/&(\#230|aelig);/{\\ae}/g;
  240:     $result =~ s/&(\#231|ccedil);/\\c{c}/g;
  241:     $result =~ s/&(\#232|egrave);/\\\`{e}/g;
  242:     $result =~ s/&(\#233|eacute);/\\\'{e}/g;
  243:     $result =~ s/&(\#234|ecirc);/\\^{e}/g;
  244:     $result =~ s/&(\#235|euml);/\\\"{e}/g;
  245:     $result =~ s/&(\#236|igrave);/\\\`{i}/g;
  246:     $result =~ s/&(\#237|iacute);/\\\'{i}/g;
  247:     $result =~ s/&(\#238|icirc);/\\^{i}/g;
  248:     $result =~ s/&(\#239|iuml);/\\\"{i}/g;
  249:     $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
  250:     $result =~ s/&(\#241|ntilde);/\\~{n}/g;
  251:     $result =~ s/&(\#242|ograve);/\\\`{o}/g;
  252:     $result =~ s/&(\#243|oacute);/\\\'{o}/g;
  253:     $result =~ s/&(\#244|ocirc);/\\^{o}/g;
  254:     $result =~ s/&(\#245|otilde);/\\~{o}/g;
  255:     $result =~ s/&(\#246|ouml);/\\\"{o}/g;
  256:     $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
  257:     $result =~ s/&(\#248|oslash);/{\\o}/g;
  258:     $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
  259:     $result =~ s/&(\#250|uacute);/\\\'{u}/g;
  260:     $result =~ s/&(\#251|ucirc);/\\^{u}/g;
  261:     $result =~ s/&(\#252|uuml);/\\\"{u}/g;
  262:     $result =~ s/&(\#253|yacute);/\\\'{y}/g;
  263:     $result =~ s/&(\#255|yuml);/\\\"{y}/g;
  264:     $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
  265: #Greek Alphabet
  266:     $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
  267:     $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
  268:     $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
  269:     $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
  270:     $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
  271:     $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
  272:     $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
  273:     $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
  274:     $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
  275:     $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
  276:     $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
  277:     $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
  278:     $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
  279:     $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
  280:     $result =~ s/&(omicron|\#959);/o/g;
  281:     $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
  282:     $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
  283:     $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
  284:     $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
  285:     $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
  286:     $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
  287:     $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
  288:     $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
  289:     $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
  290:     $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
  291:     $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
  292:     $result =~ s/&(Alpha|\#913);/A/g;
  293:     $result =~ s/&(Beta|\#914);/B/g;
  294:     $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
  295:     $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
  296:     $result =~ s/&(Epsilon|\#917);/E/g;
  297:     $result =~ s/&(Zeta|\#918);/Z/g;
  298:     $result =~ s/&(Eta|\#919);/H/g;
  299:     $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
  300:     $result =~ s/&(Iota|\#921);/I/g;
  301:     $result =~ s/&(Kappa|\#922);/K/g;
  302:     $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
  303:     $result =~ s/&(Mu|\#924);/M/g;
  304:     $result =~ s/&(Nu|\#925);/N/g;
  305:     $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
  306:     $result =~ s/&(Omicron|\#927);/O/g;
  307:     $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
  308:     $result =~ s/&(Rho|\#929);/P/g;
  309:     $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
  310:     $result =~ s/&(Tau|\#932);/T/g;
  311:     $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
  312:     $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
  313:     $result =~ s/&(Chi|\#935);/X/g;
  314:     $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
  315:     $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
  316: #Arrows (extended HTML 4.01)
  317:     $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
  318:     $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
  319:     $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
  320:     $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
  321:     $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
  322:     $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
  323:     $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
  324:     $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
  325:     $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
  326:     $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
  327: #Mathematical Operators (extended HTML 4.01)
  328:     $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
  329:     $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
  330:     $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
  331:     $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
  332:     $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
  333:     $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
  334:     $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
  335:     $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
  336:     $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
  337:     $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
  338:     $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
  339:     $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
  340:     $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
  341:     $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
  342:     $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
  343:     $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
  344:     $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
  345:     $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
  346:     $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
  347:     $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
  348:     $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
  349:     $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
  350:     $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
  351:     $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
  352:     $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
  353:     $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
  354:     $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
  355:     $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
  356:     $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
  357:     $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
  358:     $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
  359:     $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
  360:     $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
  361:     $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
  362:     $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
  363:     $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
  364:     $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
  365: #Geometric Shapes (extended HTML 4.01)
  366:     $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
  367: #Miscellaneous Symbols (extended HTML 4.01)
  368:     $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
  369:     $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
  370:     $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
  371:     $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
  372:     return $result;
  373: }
  374: 
  375: 
  376: sub page_format {
  377: #
  378: #Supported paper format: "Letter [8 1/2x11 in]",      "Legal [8 1/2x14 in]",
  379: #                        "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
  380: #                        "A2 [420x594 mm]",           "A3 [297x420 mm]",
  381: #                        "A4 [210x297 mm]",           "A5 [148x210 mm]",
  382: #                        "A6 [105x148 mm]"
  383: # 
  384:     my ($papersize,$layout,$numberofcolumns) = @_; 
  385:     my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = (0,0,0,0,0);
  386:     my $page_formats={'book'=>{
  387: 	'1'=>{'letter'=>{'width'=>'7.1 in','height'=>'10.2 in','topmargin'=>'0 in',
  388:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',
  389: 	      },
  390: 	      'legal'=>{'width'=>'7.1 in','height'=>'13 in','topmargin'=>'-0.5 in',
  391:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',
  392: 	      },
  393: 	      'tabloid'=>{'width'=>'9.8 in','height'=>'16 in','topmargin'=>'-0.5 in',
  394:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',
  395: 	      },
  396: 	      'exacutive'=>{'width'=>'6.8 in','height'=>'9 in','topmargin'=>'1.2 in',
  397:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',		  
  398: 	      },
  399: 	      'a2'=>{
  400: 		  
  401: 	      },
  402: 	      'a3'=>{
  403: 		  
  404: 	      },
  405: 	      'a4'=>{'width'=>'176 mm','height'=>'272 mm','topmargin'=>'-0.5 in',
  406:               'oddsidemargin'=>'-40 pt in','evensidemargin'=>'-60 pt',
  407: 		  
  408: 	      },
  409: 	      'a5'=>{
  410: 		  
  411: 	      },
  412: 	      'a6'=>{
  413: 		  
  414: 	      },
  415: 	  },
  416:         '2'=>{'letter'=>{'width'=>'3.66 in','height'=>'10.2 in','topmargin'=>'0 in',
  417:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',
  418: 	      },
  419: 	      'legal'=>{'width'=>'3.16 in','height'=>'13 in','topmargin'=>'-0.5 in',
  420:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',		  
  421: 	      },
  422: 	      'tabloid'=>{'width'=>'4.9 in','height'=>'16 in','topmargin'=>'-0.5 in',
  423:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',
  424: 
  425: 	      },
  426: 	      'exacutive'=>{'width'=>'3.1 in','height'=>'9 in','topmargin'=>'1.2 in',
  427:               'oddsidemargin'=>'-0.57 in','evensidemargin'=>'-0.57 in',	  
  428: 	      },
  429: 	      'a2'=>{
  430: 		  
  431: 	      },
  432: 	      'a3'=>{
  433: 		  
  434: 	      },
  435: 	      'a4'=>{'width'=>'91 mm','height'=>'272 mm','topmargin'=>'-0.5 in',
  436:               'oddsidemargin'=>'-40 pt in','evensidemargin'=>'-60 pt',
  437: 		  
  438: 	      },
  439: 	      'a5'=>{
  440: 		  
  441: 	      },
  442: 	      'a6'=>{
  443: 		  
  444: 	      },
  445: 
  446: 	},
  447:     },'album'=>{
  448: 	'1'=>{'letter'=>{'width'=>'8.8 in','height'=>'6.8 in','topmargin'=>'0 in',
  449:               'oddsidemargin'=>'-40 pt in','evensidemargin'=>'-60 pt',
  450: 	      },
  451: 	      'legal'=>{
  452: 		  
  453: 	      },
  454: 	      'tabloid'=>{
  455: 
  456: 	      },
  457: 	      'exacutive'=>{
  458: 		  
  459: 	      },
  460: 	      'a2'=>{
  461: 		  
  462: 	      },
  463: 	      'a3'=>{
  464: 		  
  465: 	      },
  466: 	      'a4'=>{'width'=>'8.5 in','height'=>'7.7 in','topmargin'=>'0 in',
  467:               'oddsidemargin'=>'-40 pt in','evensidemargin'=>'-60 pt',
  468: 		  
  469: 	      },
  470: 	      'a5'=>{
  471: 		  
  472: 	      },
  473: 	      'a6'=>{
  474: 		  
  475: 	      },
  476: 	  },
  477:         '2'=>{'letter'=>{'width'=>'4.4 in','height'=>'6.8 in','topmargin'=>'3.5 in',
  478:               'oddsidemargin'=>'-0.5 in','evensidemargin'=>'-1.5 in',
  479: 	      },
  480: 	      'legal'=>{
  481: 		  
  482: 	      },
  483: 	      'tabloid'=>{
  484: 
  485: 	      },
  486: 	      'exacutive'=>{
  487: 		  
  488: 	      },
  489: 	      'a2'=>{
  490: 		  
  491: 	      },
  492: 	      'a3'=>{
  493: 		  
  494: 	      },
  495: 	      'a4'=>{'width'=>'3.9 in','height'=>'7.7 in','topmargin'=>'0 in',
  496:               'oddsidemargin'=>'-40 pt in','evensidemargin'=>'-60 pt',
  497: 		  
  498: 	      },
  499: 	      'a5'=>{
  500: 		  
  501: 	      },
  502: 	      'a6'=>{
  503: 		  
  504: 	      },
  505: 
  506: 	     },
  507:  	  },
  508:     };	    
  509:     return $page_formats->{$layout}->{$numberofcolumns}->{$papersize}->{'width'},
  510:            $page_formats->{$layout}->{$numberofcolumns}->{$papersize}->{'height'},
  511:            $page_formats->{$layout}->{$numberofcolumns}->{$papersize}->{'oddmargin'},
  512:            $page_formats->{$layout}->{$numberofcolumns}->{$papersize}->{'evensidemargin'},
  513:            $page_formats->{$layout}->{$numberofcolumns}->{$papersize}->{'topmargin'};
  514: }
  515: 
  516: 
  517: sub get_name {
  518:     my ($uname,$udom)=@_;
  519:     if (!defined($uname)) { $uname=$ENV{'user.name'}; }
  520:     if (!defined($udom)) { $udom=$ENV{'user.domain'}; }
  521:     my $plainname=&Apache::loncommon::plainname($uname,$udom);
  522:     if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
  523:     $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
  524:     return $plainname;
  525: }
  526: 
  527: sub get_course {
  528:     my $courseidinfo;
  529:     if (defined($ENV{'request.course.id'})) {
  530: 	$courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'header');
  531:     }
  532:     return $courseidinfo;
  533: }
  534: 
  535: sub page_format_transformation {
  536:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_; 
  537:     my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
  538:     if ($selectionmade eq '4') {
  539: 	$assignment='Problems from the Whole Course';
  540:     } else {
  541: 	$assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
  542:     }
  543:     ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
  544:     my $name = &get_name();
  545:     my $courseidinfo = &get_course();
  546:     if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
  547:     my $topmargintoinsert = '';
  548:     if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
  549:     my $fancypagestatement='';
  550:     if ($numberofcolumns eq '2') {
  551: 	$fancypagestatement="\\fancyhead{}\\fancyhead[LO]{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
  552:     } else {
  553: 	$fancypagestatement="\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
  554:     }
  555:     if ($layout eq 'album') {
  556: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\pagestyle{fancy}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1} /;
  557:     } elsif ($layout eq 'book') {
  558: 	if ($choice ne 'All class print') { 
  559: 	    $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
  560: 	} else {
  561: 	    $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
  562: 	}
  563: 	if ($papersize eq 'a4') {
  564: 	    $text =~ s/(\\begin{document})/$1\\special{papersize=210mm,297mm}/;
  565: 	}
  566:     }
  567:     if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
  568:     if ($indexlist eq 'yes') {
  569: 	$text=~s/(\\begin{document})/\\makeindex $1/;
  570: 	$text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
  571:     }
  572:     return $text;
  573: }
  574: 
  575: 
  576: sub page_cleanup {
  577:     my $result = shift;	
  578:  
  579:     $result =~ m/\\end{document}(\d*)$/;
  580:     my $number_of_columns = $1;
  581:     my $insert = '{';
  582:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
  583:     $insert .= '}';
  584:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
  585:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
  586:     return $result,$number_of_columns;
  587: }
  588: 
  589: 
  590: sub details_for_menu {
  591: 
  592:     my $name_of_resourse = &Apache::lonnet::gettitle($ENV{'form.postdata'});
  593:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
  594:     my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
  595:     $map=&Apache::lonnet::clutter($map);
  596:     my $name_of_sequence = &Apache::lonnet::gettitle($map);
  597:     if ($name_of_sequence =~ /^\s*$/) {
  598: 	$map =~ m|([^/]+)$|;
  599: 	$name_of_sequence = $1;
  600:     }
  601:     my $name_of_map = &Apache::lonnet::gettitle($ENV{'request.course.uri'});
  602:     if ($name_of_map =~ /^\s*$/) {
  603: 	$ENV{'request.course.uri'} =~ m|([^/]+)$|;
  604: 	$name_of_map = $1;
  605:     }
  606:     return ($name_of_resourse,$name_of_sequence,$name_of_map);
  607: 
  608: }
  609: 
  610: 
  611: sub latex_corrections {
  612: 
  613:     my ($number_of_columns,$result,$selectionmade) = @_;
  614: 
  615: #    $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
  616:     $result =~ s/\$number_of_columns/$number_of_columns/g;
  617:     if ($selectionmade ne '1') {
  618: 	$result =~ s/(\\end{document})/\\strut\\vspace\*{-4 mm}\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License  $1/;
  619:     } else {
  620: 	$result =~ s/(\\end{document})/\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License  $1/;
  621:     }
  622:     $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
  623:     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
  624: #-- LaTeX corrections     
  625:     my $first_comment = index($result,'<!--',0);
  626:     while ($first_comment != -1) {
  627: 	my $end_comment = index($result,'-->',$first_comment);
  628: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
  629: 	$first_comment = index($result,'<!--',$first_comment);
  630:     }
  631:     $result =~ s/^\s+$//gm; #remove empty lines
  632:     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
  633:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
  634:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
  635:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
  636:     $result =~ s/\\\\\s+\[/ \[/g;
  637:     #conversion of html characters to LaTeX equivalents
  638:     if ($result =~ m/&(\w+|#\d+);/) {
  639: 	$result = &character_chart($result);
  640:     }
  641:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
  642:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
  643: 
  644:     return $result;
  645: }
  646: 
  647: 
  648: sub index_table {
  649:     my $currentURL = shift;
  650:     my $insex_string='';
  651:     $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
  652:     $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
  653:     return $insex_string;
  654: }
  655: 
  656: 
  657: sub IndexCreation {
  658:     my ($texversion,$currentURL)=@_;
  659:     my @key_words=split(/,/,&index_table($currentURL));
  660:     my $chunk='';
  661:     my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
  662:     if ($st>0) {
  663: 	for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
  664: 	$chunk=substr($texversion,0,$st+1);
  665: 	substr($texversion,0,$st+1)=' ';
  666:     }
  667:     foreach my $key_word (@key_words) {
  668: 	if ($key_word=~/\S+/) {
  669: 	    $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
  670: 	}
  671:     }			
  672:     if ($st>0) {substr($texversion,0,1)=$chunk;}
  673:     return $texversion;
  674: }
  675: 
  676: sub print_latex_header {
  677:     my $mode=shift;
  678:     my $output='\documentclass[letterpaper]{article}';
  679:     if ($mode eq 'batchmode') {
  680: 	$output.='\batchmode';
  681:     }
  682:     $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'.
  683: 	     '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'.
  684: 	     '\usepackage[dvips]{graphicx}\usepackage{epsfig}\usepackage{calc}'.
  685: 	     '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'.
  686: 	     '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'.
  687: 	     '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'.
  688: 	     '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'.
  689: 	     '\setlength{\abovedisplayshortskip}{-0.04in}'.
  690: 	     '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
  691: 	     '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'.
  692: 	     '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'.
  693: 	     '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'.
  694: 	     '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'.
  695: 	     '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'.
  696: 	     '\setlength{\abovedisplayshortskip}{-0.04in}'.
  697: 	     '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}';
  698:     return $output;	     
  699: }
  700: 
  701: sub path_to_problem {
  702:     my ($urlp,$LaTeXwidth)=@_;
  703:     my $newurlp = '';
  704:     $LaTeXwidth=~s/\s*mm\s*$//;
  705:     my $HowMany = length($urlp)*2;
  706:     if ($HowMany > $LaTeXwidth) {
  707: 	my @temporrary = split '/',$urlp;
  708: 	my $HowManyNew = 0;
  709: 	for (my $ii=0;$ii<=$#temporrary;$ii++) {
  710: 	    if ($temporrary[$ii] ne '') {
  711: 		$HowManyNew += length($temporrary[$ii])*2;
  712: 		if ($HowManyNew < $LaTeXwidth ) {
  713: 		    $newurlp .=  '/'.$temporrary[$ii];
  714: 		} else {
  715: 		    $HowManyNew = 0;
  716: 		    $newurlp .=  '|\vskip -1 mm \noindent \verb|';
  717: 		    $ii--;
  718: 		}
  719: 	    }
  720: 	}
  721:     } else {
  722: 	$newurlp=$urlp;
  723:     }
  724:     return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
  725: }
  726: 
  727: sub recalcto_mm {
  728:     my $textwidth=shift;
  729:     my $LaTeXwidth;
  730:     if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
  731: 	$LaTeXwidth = $1*10;
  732:     } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
  733: 	$LaTeXwidth = $1;
  734:     } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
  735: 	$LaTeXwidth = $1*25.4;
  736:     }
  737:     $LaTeXwidth.=' mm';
  738:     return $LaTeXwidth;
  739: }
  740: 
  741: sub get_textwidth {
  742:     my ($helper,$LaTeXwidth)=@_;
  743:     my $textwidth=$LaTeXwidth;
  744:     if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
  745: 	$helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
  746: 	$textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
  747: 				$helper->{'VARS'}->{'pagesize.widthunit'});
  748:     }
  749:     return $textwidth;
  750: }
  751: 
  752: 
  753: sub unsupported {
  754:     my ($currentURL,$mode)=@_;
  755:     if ($mode ne '') {$mode='\\'.$mode}
  756:     my $result.= &print_latex_header($mode);
  757:     if ($currentURL=~/\/ext\//) {
  758: 	$result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
  759:     } else {
  760: 	$result.=$currentURL;
  761:     }
  762:     $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
  763:     return $result;
  764: }
  765: 
  766: 
  767: sub output_data {
  768:     my ($r,$helper,$rparmhash) = @_;
  769:     my %parmhash = %$rparmhash;
  770:     my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
  771:     $r->print(<<ENDPART);
  772: <html>
  773: <script type="text/javascript" language="Javascript" >
  774:     var editbrowser;
  775:     function openbrowser(formname,elementname,only,omit) {
  776:         var url = '/res/?';
  777:         if (editbrowser == null) {
  778:             url += 'launch=1&';
  779:         }
  780:         url += 'catalogmode=interactive&';
  781:         url += 'mode=parmset&';
  782:         url += 'form=' + formname + '&';
  783:         if (only != null) {
  784:             url += 'only=' + only + '&';
  785:         } 
  786:         if (omit != null) {
  787:             url += 'omit=' + omit + '&';
  788:         }
  789:         url += 'element=' + elementname + '';
  790:         var title = 'Browser';
  791:         var options = 'scrollbars=1,resizable=1,menubar=0';
  792:         options += ',width=700,height=600';
  793:         editbrowser = open(url,title,options,'1');
  794:         editbrowser.focus();
  795:     }
  796: </script>
  797: <head>
  798: <title>LON-CAPA output for printing</title>
  799: </head>
  800: $bodytag
  801: Please stand by while processing your print request, this may take some time ...
  802: ENDPART
  803: 
  804:     my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
  805:     my ($result,$selectionmade) = ('','');
  806:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
  807:     my @temporary_array=split /\|/,$format_from_helper;
  808:     my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
  809:     if ($laystyle eq 'L') {
  810: 	$laystyle='album';
  811:     } else {
  812: 	$laystyle='book';
  813:     }
  814:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
  815:     my $assignment =  $ENV{'form.assignment'};
  816:     my $LaTeXwidth=&recalcto_mm($textwidth); 
  817:     my @print_array=();
  818:     my @student_names=();
  819:     
  820:     if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
  821:       #-- single document - problem, page, html, xml, ...
  822: 	my $currentURL;
  823: 	if ($helper->{'VARS'}->{'construction'} ne '1') {
  824:             #prints published resource
  825: 	    $currentURL=$helper->{'VARS'}->{'postdata'};
  826: 	} else {
  827:             #prints resource from the construction space
  828: 	    $currentURL='/'.$helper->{'VARS'}->{'filename'};
  829: 	    if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
  830: 	}
  831: 	$selectionmade = 1;
  832: 	if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
  833: 	    my $rndseed=time;
  834: 	    my $texversion='';
  835: 	    if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
  836: 		my %moreenv;
  837: 		$moreenv{'request.filename'}=$currentURL;
  838: 		if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
  839: 		    $moreenv{'construct.style'}=$helper->{'VARS'}->{'style_file'};
  840: 		    my $dom = $ENV{'user.domain'};
  841: 		    my $user = $ENV{'user.name'};
  842: 		    my $put_result = &Apache::lonnet::put('environment',{'construct.style'=>$helper->{'VARS'}->{'style_file'}},$dom,$user);
  843: 		}
  844: 		my %form;
  845:                 if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
  846: 		$form{'grade_target'}='tex';
  847: 		$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
  848: 		$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  849: 		$form{'suppress_tries'}=$parmhash{'suppress_tries'};
  850: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  851: 		$form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
  852: 		if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
  853: 		if ($helper->{'VARS'}->{'curseed'}) {
  854: 		    $rndseed=$helper->{'VARS'}->{'curseed'};
  855: 		}
  856: 		$form{'rndseed'}=$rndseed;
  857: 		&Apache::lonnet::appenv(%moreenv);
  858: 		&Apache::lonnet::delenv('form.counter');
  859: 		&Apache::lonxml::init_counter();
  860: 		$texversion.=&Apache::lonnet::ssi($currentURL,%form);
  861: 		&Apache::lonnet::delenv('form.counter');
  862: 		&Apache::lonnet::delenv('request.filename');
  863: 	    }
  864: 	    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
  865: 	       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
  866: 		my %form;
  867: 		$form{'grade_target'}='answer';
  868: 		$form{'answer_output_mode'}='tex';
  869: 		$form{'rndseed'}=$rndseed;
  870: 		my $answer=&Apache::lonnet::ssi($currentURL,%form);
  871: 		if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
  872: 		    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
  873: 		} else {
  874: 		    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
  875: 		    if ($helper->{'VARS'}->{'construction'} ne '1') {
  876: 			$texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
  877: 			$texversion.=&path_to_problem ($currentURL,$LaTeXwidth);
  878: 		    } else {
  879: 			$texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
  880: 			my $URLpath=$currentURL;
  881: 			$URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
  882: 			$texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
  883: 		    }
  884: 		    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
  885: 		}
  886: 	    }
  887: 	    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
  888: 		$texversion=&IndexCreation($texversion,$currentURL);
  889: 	    }
  890: 	    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
  891: 		$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
  892: 
  893: 	    }
  894: 	    $result .= $texversion;
  895: 	    if ($currentURL=~m/\.page\s*$/) {
  896: 		($result,$number_of_columns) = &page_cleanup($result);
  897: 	    }
  898:         } elsif ($currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
  899:             #printing content of sequence from the construction space	
  900: 	    my $flag_latex_header_remove = 'NO'; 
  901: 	    my $rndseed=time;
  902: 	    if ($helper->{'VARS'}->{'curseed'}) {
  903: 		$rndseed=$helper->{'VARS'}->{'curseed'};
  904: 	    }
  905: 	    $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
  906: 	    my $errtext=&Apache::lonratedt::mapread($currentURL);
  907: 	    for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
  908: 		$Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
  909: 		my $urlp=$2;
  910: 		if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
  911: 		    my $texversion='';
  912: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
  913: 			my %form;
  914: 			$form{'grade_target'}='tex';
  915: 			$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
  916: 			$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  917: 			$form{'suppress_tries'}=$parmhash{'suppress_tries'};
  918: 			$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  919: 			$form{'rndseed'}=$rndseed;
  920: 			$texversion=&Apache::lonnet::ssi($urlp,%form);
  921: 		    }
  922: 		    if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
  923: 		       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) && 
  924: 		       ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
  925: 			my %form;
  926: 			$form{'grade_target'}='answer';
  927: 			$form{'answer_output_mode'}='tex';
  928: 			$form{'rndseed'}=$rndseed;
  929:                         if ($urlp=~/\/res\//) {$ENV{'request.state'}='published';}
  930: 			my $answer=&Apache::lonnet::ssi($urlp,%form);
  931: 			if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
  932: 			    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
  933: 			} else {
  934: 			    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
  935: 			    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
  936: 			    $texversion.=&path_to_problem ($currentURL,$LaTeXwidth);
  937: 			    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
  938: 			}
  939: 		    }
  940: 		    if ($flag_latex_header_remove ne 'NO') {
  941: 			$texversion = &latex_header_footer_remove($texversion);
  942: 		    } else {
  943: 			$texversion =~ s/\\end{document}//;
  944: 		    }
  945: 		    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
  946: 			$texversion=&IndexCreation($texversion,$urlp);
  947: 		    }
  948: 		    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
  949: 			$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
  950: 		    }
  951: 		    $result.=$texversion;
  952: 		    $flag_latex_header_remove = 'YES';
  953: 		} elsif ($urlp=~/\.(sequence|page)$/) {
  954: 		    $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
  955: 		}  
  956: 	    }
  957: 	    if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
  958: 	    $result .= '\end{document}';   
  959: 	} elsif ($currentURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
  960: 		my %form;
  961: 		$form{'grade_target'}='tex';
  962: 		$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
  963: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  964: 		if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
  965: 		my $texversion=&Apache::lonnet::ssi($currentURL,%form);
  966: 		$result .= $texversion;
  967: 	} else {
  968: 	    $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'});
  969: 	}
  970:     } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
  971:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
  972:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
  973: 	     ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) { 
  974:         #-- produce an output string
  975: 	if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
  976: 	    $selectionmade = 2;
  977: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
  978: 	    $selectionmade = 3;
  979: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
  980: 	    $selectionmade = 4;
  981: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
  982: 	    $selectionmade = 7;
  983: 	}
  984: 	my %form=();	   
  985: 	$form{'grade_target'}='tex';
  986: 	$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
  987: 	$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  988: 	$form{'suppress_tries'}=$parmhash{'suppress_tries'};
  989: 	$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  990: 	$form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
  991: 	if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
  992: 	my $flag_latex_header_remove = 'NO';
  993: 	my $flag_page_in_sequence = 'NO';
  994: 	my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
  995: 	my $prevassignment='';
  996: 	&Apache::lonnet::delenv('form.counter');
  997: 	&Apache::lonxml::init_counter();
  998: 	for (my $i=0;$i<=$#master_seq;$i++) {
  999: 	    my (undef,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
 1000: 	    $urlp=&Apache::lonnet::clutter($urlp);
 1001: 	    $form{'symb'}=$master_seq[$i];
 1002: 	    my ($sequence)=&Apache::lonnet::decode_symb($master_seq[$i]);
 1003: 	    my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #tittle of the assignment which contains this problem
 1004: 	    if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
 1005: 	    if ($i==0) {$prevassignment=$assignment;}
 1006: 	    #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
 1007: 	    my $texversion='';
 1008: 	    if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
 1009: 		$texversion.=&Apache::lonnet::ssi($urlp,%form);
 1010: 		if ($urlp=~/\.page$/) {
 1011: 		    ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
 1012: 		    if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
 1013: 		    $texversion =~ s/\\end{document}\d*/\\end{document}/;
 1014: 		    $flag_page_in_sequence = 'YES';
 1015: 		} 
 1016: 		my $lonidsdir=$r->dir_config('lonIDsDir');
 1017: 		my $envfile=$ENV{'user.environment'};
 1018: 		$envfile=~/\/([^\/]+)\.id$/;
 1019: 		$envfile=$1;
 1020: 		&Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1021: 		my $current_counter=$ENV{'form.counter'};
 1022: 		if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1023: 		   ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1024: 		    my %form;
 1025: 		    $form{'grade_target'}='answer';
 1026: 		    $form{'answer_output_mode'}='tex';
 1027: 		    my $answer=&Apache::lonnet::ssi($urlp,%form);
 1028: 		    &Apache::lonnet::appenv(('form.counter' => $current_counter));
 1029: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1030: 			$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1031: 		    } else {
 1032: 			if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
 1033: 			    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1034: 			    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($urlp).'}\vskip 0 mm ';
 1035: 			    $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
 1036: 			    $texversion.='\vskip 1 mm '.$answer;
 1037: 			} else {
 1038: 			    $texversion='';
 1039: 			}
 1040: 		    }
 1041: 		}
 1042: 		if ($flag_latex_header_remove ne 'NO') {
 1043: 		    $texversion = &latex_header_footer_remove($texversion);
 1044: 		} else {
 1045: 		    $texversion =~ s/\\end{document}//;
 1046: 		}
 1047: 		if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
 1048: 		    $texversion=&IndexCreation($texversion,$urlp);
 1049: 		}
 1050: 		if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
 1051: 		    my $name = &get_name();
 1052: 		    my $courseidinfo = &get_course();
 1053: 		    if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
 1054: 		    $prevassignment=$assignment;
 1055: 		    $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip -5 mm ';
 1056: 		}
 1057: 		$result .= $texversion;
 1058: 		$flag_latex_header_remove = 'YES';   
 1059: 	    } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
 1060: 		my %form;
 1061: 		$form{'grade_target'}='tex';
 1062: 		$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
 1063: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1064: 		if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
 1065: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1066: 		if ($flag_latex_header_remove ne 'NO') {
 1067: 		    $texversion = &latex_header_footer_remove($texversion);
 1068: 		} else {
 1069: 		    $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
 1070: 		}
 1071: 		$result .= $texversion;
 1072: 		$flag_latex_header_remove = 'YES'; 
 1073: 	    } else {
 1074: 		$texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'});
 1075: 		if ($flag_latex_header_remove ne 'NO') {
 1076: 		    $texversion = &latex_header_footer_remove($texversion);
 1077: 		} else {
 1078: 		    $texversion =~ s/\\end{document}//;
 1079: 		}
 1080: 		$result .= $texversion;
 1081: 		$flag_latex_header_remove = 'YES';   
 1082: 	    }	    
 1083: 	}
 1084: 	&Apache::lonnet::delenv('form.counter');
 1085: 	if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}	
 1086: 	$result .= '\end{document}';
 1087:      } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
 1088: 	      ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
 1089:      #-- prints assignments for whole class or for selected students  
 1090: 	 my $type;
 1091: 	 if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
 1092: 	     $selectionmade=5;
 1093: 	     $type='problems';
 1094: 	 } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
 1095: 	     $selectionmade=8;
 1096: 	     $type='resources';
 1097: 	 }
 1098: 	 my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
 1099:          if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
 1100: 	     $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
 1101: 	     $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
 1102: 	 }
 1103: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1104: 	 #loop over students
 1105: 	 my $flag_latex_header_remove = 'NO'; 
 1106: 	 my %moreenv;
 1107: 	 $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
 1108: 	 $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
 1109: 	 if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$moreenv{'problem_split'}='yes';}
 1110: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
 1111: 	 my $student_counter=-1;
 1112: 	 foreach my $person (@students) {
 1113:              my $duefile="/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
 1114: 	     if (-e $duefile) {
 1115: 		 my $temp_file = Apache::File->new('>>'.$duefile);
 1116: 		 print $temp_file "1969\n";
 1117: 	     }
 1118: 	     $student_counter++;
 1119: 	     my $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
 1120: 	     my ($output,$fullname)=&print_resources($r,$helper,$person,$type,\%moreenv,\@master_seq,$flag_latex_header_remove);
 1121: 	     $print_array[$i].=$output;
 1122: 	     $student_names[$i].=$person.':'.$fullname.'_END_';
 1123: 	     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
 1124: 	     $flag_latex_header_remove = 'YES';
 1125: 	 }
 1126: 	 &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 1127: 	 $result .= $print_array[0].'  \end{document}';
 1128:      } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon')     ||
 1129: 	      ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon')  ) { 
 1130: 	 my $cdom =$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
 1131: 	 my $cnum =$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
 1132: 	 my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
 1133: 	 my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
 1134: 	 my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
 1135: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1136: 	 my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
 1137: 	 my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
 1138: 	 if ($number_per_page eq '0' || $number_per_page eq 'all') {
 1139: 	     $number_per_page=$num_todo;
 1140: 	 }
 1141: 	 my $flag_latex_header_remove = 'NO'; 
 1142: 	 my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
 1143: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
 1144: 	 my $seed=time+($$<<16)+($$);
 1145: 	 my @allcodes;
 1146: 	 if ($old_name) {
 1147: 	     my %result=&Apache::lonnet::get('CODEs',[$old_name],$cdom,$cnum);
 1148: 	     @allcodes=split(',',$result{$old_name});
 1149: 	 } else {
 1150: 	     my %allcodes;
 1151: 	     srand($seed);
 1152: 	     for (my $i=0;$i<$num_todo;$i++) {
 1153: 		 $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,'6');
 1154: 	     }
 1155: 	     if ($code_name) {
 1156: 		 &Apache::lonnet::put('CODEs',
 1157: 				      {$code_name =>join(',',keys(%allcodes))},
 1158: 				      $cdom,$cnum);
 1159: 	     }
 1160: 	     @allcodes=keys(%allcodes);
 1161: 	 }
 1162: 	 my $count=0;
 1163: 	 foreach my $code (sort(@allcodes)) {
 1164: 	     my $file_num=int($count/$number_per_page);
 1165: 	     $moreenv{'CODE'}=&num_to_letters($code);
 1166: 	     my ($output,$fullname)=
 1167: 		 &print_resources($r,$helper,'anonymous',$type,\%moreenv,
 1168: 				  \@master_seq,$flag_latex_header_remove);
 1169: 	     $print_array[$file_num].=$output;
 1170: 	     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 1171: 				       &mt('last assignment').' '.$fullname);
 1172: 	     $flag_latex_header_remove = 'YES';
 1173: 	     $count++;
 1174: 	 }
 1175: 	 &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 1176: 	 $result .= $print_array[0].'  \end{document}';
 1177:      } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
 1178:     #prints selected problems from the subdirectory 
 1179: 	$selectionmade = 6;
 1180:         my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
 1181: 	@list_of_files=sort @list_of_files;
 1182: 	my $flag_latex_header_remove = 'NO'; 
 1183: 	my $rndseed=time;
 1184: 	if ($helper->{'VARS'}->{'curseed'}) {
 1185: 	    $rndseed=$helper->{'VARS'}->{'curseed'};
 1186: 	}
 1187: 	for (my $i=0;$i<=$#list_of_files;$i++) {
 1188: 	    my $urlp = $list_of_files[$i];
 1189: 	    $urlp=~s|//|/|;
 1190: 	    if ($urlp=~/\//) {
 1191: 		my %form;
 1192: 		$form{'grade_target'}='tex';
 1193: 		$form{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
 1194: 		$form{'rndseed'}=$rndseed;
 1195: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
 1196: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
 1197: 		} else {
 1198: 		    $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
 1199: 		}
 1200: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1201: 		if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1202: 		   ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1203: 		    my %form;
 1204: 		    $form{'grade_target'}='answer';
 1205: 		    $form{'answer_output_mode'}='tex';
 1206: 		    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1207: 		    $form{'rndseed'}=$rndseed;
 1208: 		    my $answer=&Apache::lonnet::ssi($urlp,%form);
 1209: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1210: 			$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1211: 		    } else {
 1212: 			$texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1213: 			if ($helper->{'VARS'}->{'construction'} ne '1') {
 1214: 			    $texversion.='\vskip 0 mm \noindent ';
 1215: 			    $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
 1216: 			} else {
 1217: 			    $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
 1218: 			    my $URLpath=$urlp;
 1219: 			    $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
 1220: 			    $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
 1221: 			}
 1222: 			$texversion.='\vskip 1 mm '.$answer.'\end{document}';
 1223: 		    }
 1224: 		}
 1225:                 #this chunck is responsible for printing the path to problem
 1226: 		my $newurlp=$urlp;
 1227: 		if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
 1228: 		$newurlp=&path_to_problem($newurlp,$LaTeXwidth);
 1229: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
 1230: 		if ($flag_latex_header_remove ne 'NO') {
 1231: 		    $texversion = &latex_header_footer_remove($texversion);
 1232: 		} else {
 1233: 		    $texversion =~ s/\\end{document}//;
 1234: 		}
 1235: 		if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
 1236: 		    $texversion=&IndexCreation($texversion,$urlp);
 1237: 		}
 1238: 		if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
 1239: 		    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
 1240: 		    
 1241: 		}
 1242: 		$result .= $texversion;
 1243: 	    }
 1244: 	    $flag_latex_header_remove = 'YES';  
 1245: 	}
 1246: 	if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
 1247: 	$result .= '\end{document}';      	
 1248:     }
 1249: #-------------------------------------------------------- corrections for the different page formats
 1250:     $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
 1251:     $result = &latex_corrections($number_of_columns,$result,$selectionmade);
 1252:     for (my $i=1;$i<=$#print_array;$i++) {$print_array[$i] = &latex_corrections($number_of_columns,$print_array[$i],$selectionmade);}
 1253:     #changes page's parameters for the one column output 
 1254:     if ($numberofcolumns == 1) {
 1255: 	$result =~ s/\\textwidth\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
 1256: 	$result =~ s/\\textheight\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
 1257: 	$result =~ s/\\evensidemargin\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
 1258: 	$result =~ s/\\oddsidemargin\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
 1259:     }
 1260: #-- writing .tex file in prtspool 
 1261:     my $temp_file;
 1262:     my $identifier = &Apache::loncommon::get_cgi_id();
 1263:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".$identifier.".tex";
 1264:     if (!($#print_array>0)) { 
 1265: 	unless ($temp_file = Apache::File->new('>'.$filename)) {
 1266: 	    $r->log_error("Couldn't open $filename for output $!");
 1267: 	    return SERVER_ERROR; 
 1268: 	}
 1269: 	print $temp_file $result;
 1270: 	my $begin=index($result,'\begin{document}',0);
 1271: 	my $inc=substr($result,0,$begin+16);
 1272:     } else {
 1273: 	my $begin=index($result,'\begin{document}',0);
 1274: 	my $inc=substr($result,0,$begin+16);
 1275:         for (my $i=0;$i<=$#print_array;$i++) {
 1276: 	    if ($i==0) {
 1277: 		$print_array[$i]=$result;
 1278: 	    } else {
 1279: 		my $anobegin=index($print_array[$i],'\setcounter{page}',0);
 1280: 		substr($print_array[$i],0,$anobegin)='';
 1281: 		$print_array[$i]=$inc.$print_array[$i].'\end{document}';
 1282: 	    }
 1283: 	    my $temp_file;
 1284: 	    my $newfilename=$filename;
 1285: 	    my $num=$i+1;
 1286: 	    $newfilename =~s/\.tex$/_$num\.tex/; 
 1287: 	    unless ($temp_file = Apache::File->new('>'.$newfilename)) {
 1288: 		$r->log_error("Couldn't open $newfilename for output $!");
 1289: 		return SERVER_ERROR; 
 1290: 	    }
 1291: 	    print $temp_file $print_array[$i];
 1292: 	}
 1293:     }
 1294:     my $student_names='';
 1295:     if ($#print_array>0) {
 1296: 	for (my $i=0;$i<=$#print_array;$i++) {
 1297: 	    $student_names.=$student_names[$i].'_ENDPERSON_';
 1298: 	}
 1299:     } else {
 1300: 	if ($#student_names>-1) {
 1301: 	    $student_names=$student_names[0].'_ENDPERSON_';
 1302: 	} else {
 1303: 	    my $fullname = &get_name($ENV{'user.name'},$ENV{'user.domain'});
 1304: 	    $student_names=join(':',$ENV{'user.name'},$ENV{'user.domain'},
 1305: 				$ENV{'request.course.sec'},$fullname).
 1306: 				    '_ENDPERSON_'.'_END_';
 1307: 	}
 1308:     }
 1309: 
 1310:     my $URLback=''; #link to original document
 1311:     if ($helper->{'VARS'}->{'construction'} ne '1') {
 1312: 	#prints published resource
 1313: 	$URLback=$helper->{'VARS'}->{'postdata'};
 1314:     } else {
 1315: 	#prints resource from the construction space
 1316: 	$URLback='/'.$helper->{'VARS'}->{'filename'};
 1317: 	if ($URLback=~/([^?]+)/) {
 1318: 	    $URLback=$1;
 1319: 	    $URLback=~s|^/~|/priv/|;
 1320: 	}
 1321:     }
 1322: 
 1323:     &Apache::lonnet::logthis("SSSSSSS: $filename,$laystyle,$papersize,$numberofcolumns,$selectionmade,$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$ENV{'request.role.adv'},$#print_array,$student_names,$URLback");
 1324: 
 1325: 
 1326:     &Apache::lonnet::appenv('cgi.'.$identifier.'.file'   => $filename,
 1327:                             'cgi.'.$identifier.'.layout'  => $laystyle,
 1328:                             'cgi.'.$identifier.'.numcol'  => $numberofcolumns,
 1329: 			    'cgi.'.$identifier.'.paper'  => $papersize,
 1330:                             'cgi.'.$identifier.'.selection' => $selectionmade,
 1331: 			    'cgi.'.$identifier.'tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
 1332: 			    'cgi.'.$identifier.'tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
 1333: 			    'cgi.'.$identifier.'role' => $ENV{'request.role.adv'},
 1334:                             'cgi.'.$identifier.'numberoffiles' => $#print_array,
 1335:                             'cgi.'.$identifier.'studentnames' => $student_names,
 1336:                             'cgi.'.$identifier.'backref' => $URLback,);
 1337:  
 1338: $r->print(<<FINALEND);
 1339: <br />
 1340: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
 1341: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
 1342: </body>
 1343: </html>
 1344: FINALEND
 1345: }
 1346: 
 1347: sub num_to_letters {
 1348:     my ($num) = @_;
 1349:     my @nums= split('',$num);
 1350:     my @num_to_let=('A'..'Z');
 1351:     my $word;
 1352:     foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
 1353:     return $word;
 1354: }
 1355: 
 1356: sub get_CODE {
 1357:     my ($all_codes,$num,$seed,$size)=@_;
 1358:     my $max='1'.'0'x$size;
 1359:     my $newcode;
 1360:     while(1) {
 1361: 	$newcode=sprintf("%06d",int(rand($max)));
 1362: 	if (!exists($$all_codes{$newcode})) {
 1363: 	    $$all_codes{$newcode}=1;
 1364: 	    return &num_to_letters($newcode);
 1365: 	}
 1366:     }
 1367: }
 1368: 
 1369: sub print_resources {
 1370:     my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header)=@_;
 1371:     my $current_output = ''; 
 1372:     my ($username,$userdomain,$usersection) = split /:/,$person;
 1373:     my $fullname = &get_name($username,$userdomain);
 1374:     my $namepostfix;
 1375:     if ($person =~ 'anon') {
 1376: 	$namepostfix="\\\\Name: ";
 1377: 	$fullname = "CODE - ".$moreenv->{'CODE'};
 1378:     }
 1379:     #goes through all resources, checks if they are available for 
 1380:     #current student, and produces output   
 1381:     &Apache::lonnet::delenv('form.counter');
 1382:     &Apache::lonxml::init_counter();
 1383:     foreach my $curresline (@{$master_seq})  {
 1384: 	if ( !($type eq 'problems' && 
 1385: 	       ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
 1386: 	    my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
 1387: 	    if (&Apache::lonnet::allowed('bre',$res_url)) {
 1388: 		if ($res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
 1389: 		    my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$ENV{'request.course.id'},'tex',$moreenv);
 1390: 		    my $lonidsdir=$r->dir_config('lonIDsDir');
 1391: 		    my $envfile=$ENV{'user.environment'};
 1392: 		    $envfile=~/\/([^\/]+)\.id$/;
 1393: 		    $envfile=$1;
 1394: 		    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1395: 		    my $current_counter=$ENV{'form.counter'};
 1396: 		    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1397: 		       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1398: 			my %form;
 1399: 			$form{'answer_output_mode'}='tex';
 1400: 			$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1401: 			my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$ENV{'request.course.id'},%form);
 1402: 			&Apache::lonnet::appenv(('form.counter' => $current_counter));
 1403: 			if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1404: 			    $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
 1405: 			} else {
 1406: 			    $rendered=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1407: 			    $rendered.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
 1408: 			    $rendered.=&path_to_problem ($curresline,$LaTeXwidth);
 1409: 			    $rendered.='\vskip 1 mm '.$ansrendered;
 1410: 			}
 1411: 		    }
 1412: 		    if ($remove_latex_header eq 'YES') {
 1413: 			$rendered = &latex_header_footer_remove($rendered);
 1414: 		    } else {
 1415: 			$rendered =~ s/\\end{document}//;
 1416: 		    }
 1417: 		    $current_output .= $rendered;		    
 1418: 		} elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
 1419: 		    my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$ENV{'request.course.id'},'tex',$moreenv);
 1420: 		    my $lonidsdir=$r->dir_config('lonIDsDir');
 1421: 		    my $envfile=$ENV{'user.environment'};
 1422: 		    $envfile=~/\/([^\/]+)\.id$/;
 1423: 		    $envfile=$1;
 1424: 		    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1425: 		    my $current_counter=$ENV{'form.counter'};
 1426: 		    if ($remove_latex_header eq 'YES') {
 1427: 			$rendered = &latex_header_footer_remove($rendered);
 1428: 		    } else {
 1429: 			$rendered =~ s/\\end{document}//;
 1430: 		    }
 1431: 		    $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
 1432: 		} else {
 1433: 		    my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'});
 1434: 		    if ($remove_latex_header ne 'NO') {
 1435: 			$rendered = &latex_header_footer_remove($rendered);
 1436: 		    } else {
 1437: 			$rendered =~ s/\\end{document}//;
 1438: 		    }
 1439: 		    $current_output .= $rendered;
 1440: 		}
 1441: 	    }
 1442: 	    $remove_latex_header = 'YES';
 1443: 	}
 1444:     }
 1445:     my $courseidinfo = &get_course();
 1446:     if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
 1447:     if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
 1448:     my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
 1449:     if ($current_output=~/\\documentclass/) {
 1450: 	$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}\\vskip 3 mm /;
 1451:     } else {
 1452: 	my $blankpages = '';
 1453: 	for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blankpages.='\clearpage\strut\clearpage';}
 1454: 	$current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\vspace*{-2 mm}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blankpages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$currentassignment.'}'.$namepostfix.'}} \vskip -5 mm '.$current_output;
 1455:     }
 1456:     return ($current_output,$fullname);
 1457: 
 1458: }
 1459: 
 1460: sub handler {
 1461: 
 1462:     my $r = shift;
 1463:     my $helper;
 1464: 
 1465: #    my $loaderror=&Apache::lonnet::overloaderror($r);
 1466: #    if ($loaderror) { return $loaderror; }
 1467: #    $loaderror=
 1468: #       &Apache::lonnet::overloaderror($r,
 1469: #         $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
 1470: #    if ($loaderror) { return $loaderror; }
 1471: 
 1472:     my $result = printHelper($r);
 1473:     if (!ref($result)) {
 1474: 	return $result;
 1475:     }
 1476:     $helper = $result;
 1477:    
 1478: #	my $key; 
 1479: #	foreach $key (keys %{$helper->{'VARS'}}) {
 1480: #	    $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
 1481: #	}
 1482: #	foreach $key (keys %ENV) {
 1483: #	    $r->print(' '.$key.'->'.$ENV{$key}.'<-<br />');
 1484: #	}
 1485: #	return OK;
 1486: 
 1487:     my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
 1488:     
 1489: #	my $key; 
 1490: #	foreach $key (keys %parmhash) {
 1491: #	    $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
 1492: #	}
 1493: #	return OK;
 1494: 
 1495:     &output_data($r,$helper,\%parmhash);
 1496:     return OK;
 1497: } 
 1498: 
 1499: use Apache::lonhelper;
 1500: 
 1501: sub addMessage {
 1502:     my $text = shift;
 1503:     my $paramHash = Apache::lonhelper::getParamHash();
 1504:     $paramHash->{MESSAGE_TEXT} = $text;
 1505:     Apache::lonhelper::message->new();
 1506: }
 1507: 
 1508: use Data::Dumper;
 1509: 
 1510: sub printHelper {
 1511:     my $r = shift;
 1512: 
 1513:     if ($ENV{'request.course.id'}) {
 1514: 	my $fn=$ENV{'request.course.fn'};
 1515: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
 1516:     }
 1517: 
 1518:     if ($r->header_only) {
 1519:         if ($ENV{'browser.mathml'}) {
 1520:             &Apache::loncommon::content_type($r,'text/xml');
 1521:         } else {
 1522:             &Apache::loncommon::content_type($r,'text/html');
 1523:         }
 1524:         $r->send_http_header;
 1525:         return OK;
 1526:     }
 1527: 
 1528:     # Send header, nocache
 1529:     if ($ENV{'browser.mathml'}) {
 1530:         &Apache::loncommon::content_type($r,'text/xml');
 1531:     } else {
 1532:         &Apache::loncommon::content_type($r,'text/html');
 1533:     }
 1534:     &Apache::loncommon::no_cache($r);
 1535:     $r->send_http_header;
 1536:     $r->rflush();
 1537: 
 1538:     # Unfortunately, this helper is so complicated we have to
 1539:     # write it by hand
 1540: 
 1541:     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
 1542:     
 1543:     my $helper = Apache::lonhelper::helper->new("Printing Helper");
 1544:     $helper->declareVar('symb');
 1545:     $helper->declareVar('postdata');    
 1546:     $helper->declareVar('curseed'); 
 1547:     $helper->declareVar('probstatus');   
 1548:     $helper->declareVar('filename');
 1549:     $helper->declareVar('construction');
 1550:     $helper->declareVar('assignment');
 1551:     $helper->declareVar('style_file');
 1552:     
 1553:     # This will persistently load in the data we want from the
 1554:     # very first screen.
 1555:     # Detect whether we're coming from construction space
 1556:     if ($ENV{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
 1557:         $helper->{VARS}->{'filename'} = "~$1/$2";
 1558:         $helper->{VARS}->{'construction'} = 1;
 1559:     } else {
 1560:         if ($ENV{'form.postdata'}) {
 1561:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1562:         }
 1563:         if ($ENV{'form.symb'}) {
 1564:             $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1565:         }
 1566:         if ($ENV{'form.url'}) {
 1567:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1568:         }
 1569:     }
 1570: 
 1571:     if ($ENV{'form.symb'}) {
 1572:         $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1573:     }
 1574:     if ($ENV{'form.url'}) {
 1575:         $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1576: 
 1577:     }
 1578:     
 1579:     my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
 1580:     if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
 1581: 
 1582:     
 1583:     # Extract map
 1584:     my $symb = $helper->{VARS}->{'symb'};
 1585:     my ($map, $id, $url);
 1586:     my $subdir;
 1587: 
 1588:     # Get the resource name from construction space
 1589:     if ($helper->{VARS}->{'construction'}) {
 1590:         $resourceTitle = substr($helper->{VARS}->{'filename'}, 
 1591:                                 rindex($helper->{VARS}->{'filename'}, '/')+1);
 1592:         $subdir = substr($helper->{VARS}->{'filename'},
 1593:                          0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
 1594:     } else {
 1595:         ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
 1596:         $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
 1597: 
 1598:         if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
 1599:             my $postdata = $helper->{VARS}->{'postdata'};
 1600:             $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
 1601:         }
 1602:         $subdir = &Apache::lonnet::filelocation("", $url);
 1603:     }
 1604:     if (!$helper->{VARS}->{'curseed'} && $ENV{'form.curseed'}) {
 1605: 	$helper->{VARS}->{'curseed'}=$ENV{'form.curseed'};
 1606:     }
 1607:     if (!$helper->{VARS}->{'probstatus'} && $ENV{'form.problemtype'}) {
 1608: 	$helper->{VARS}->{'probstatus'}=$ENV{'form.problemtype'};
 1609:     }
 1610: 
 1611:     my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
 1612:     my $userPriviledged = ($ENV{'request.role'}=~m/^cc\./ or
 1613: 			   $ENV{'request.role'}=~m/^in\./ or
 1614: 			   $ENV{'request.role'}=~m/^ta\./);
 1615: 
 1616:     Apache::lonhelper::registerHelperTags();
 1617: 
 1618:     # "Delete everything after the last slash."
 1619:     $subdir =~ s|/[^/]+$||;
 1620:     if (not $helper->{VARS}->{'construction'}) {
 1621: 	$subdir=$Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$subdir;
 1622:     }
 1623:     # "Remove all duplicate slashes."
 1624:     $subdir =~ s|/+|/|g;
 1625: 
 1626:     # What can be printed is a very dynamic decision based on
 1627:     # lots of factors. So we need to dynamically build this list.
 1628:     # To prevent security leaks, states are only added to the wizard
 1629:     # if they can be reached, which ensures manipulating the form input
 1630:     # won't allow anyone to reach states they shouldn't have permission
 1631:     # to reach.
 1632: 
 1633:     # printChoices is tracking the kind of printing the user can
 1634:     # do, and will be used in a choices construction later.
 1635:     # In the meantime we will be adding states and elements to
 1636:     # the helper by hand.
 1637:     my $printChoices = [];
 1638:     my $paramHash;
 1639: 
 1640:     if ($resourceTitle) {
 1641:         push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('what you just saw on the screen').")", 'current_document', 'PAGESIZE'];
 1642:     }
 1643: 
 1644:     # Useful filter strings
 1645:     my $isProblem = '($res->is_problem()||$res->contains_problem) ';
 1646:     $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
 1647:     my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
 1648:     my $isNotMap = '!$res->is_sequence()';
 1649:     $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
 1650:     my $isMap = '$res->is_map()';
 1651:     my $symbFilter = '$res->symb()';
 1652:     my $urlValue = '$res->src()';
 1653: 
 1654:     $helper->declareVar('SEQUENCE');
 1655: 
 1656:     # Useful for debugging: Dump the help vars
 1657:     #$r->print(Dumper($helper->{VARS}));
 1658:     #$r->print($map);
 1659: 
 1660:     # If we're in a sequence...
 1661:     if (($helper->{'VARS'}->{'construction'} ne '1') &&
 1662: 	$helper->{VARS}->{'postdata'} &&
 1663: 	$helper->{VARS}->{'assignment'}) {
 1664:         # Allow problems from sequence
 1665:         push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
 1666:         # Allow all resources from sequence
 1667:         push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
 1668: 
 1669:         my $helperFragment = <<HELPERFRAGMENT;
 1670:   <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
 1671:     <message>(mark them then click "next" button) <br /></message>
 1672:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 1673:               closeallpages="1">
 1674:       <nextstate>PAGESIZE</nextstate>
 1675:       <filterfunc>return $isProblem;</filterfunc>
 1676:       <mapurl>$map</mapurl>
 1677:       <valuefunc>return $symbFilter;</valuefunc>
 1678:       </resource>
 1679:     </state>
 1680: 
 1681:   <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
 1682:     <message>(mark them then click "next" button) <br /></message>
 1683:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 1684:               closeallpages="1">
 1685:       <nextstate>PAGESIZE</nextstate>
 1686:       <filterfunc>return $isNotMap;</filterfunc>
 1687:       <mapurl>$map</mapurl>
 1688:       <valuefunc>return $symbFilter;</valuefunc>
 1689:       </resource>
 1690:     </state>
 1691: HELPERFRAGMENT
 1692: 
 1693: 	&Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
 1694:     }
 1695: 
 1696:     # If the user is priviledged, allow them to print all 
 1697:     # problems in the course, optionally for selected students
 1698:     if ($userPriviledged && 
 1699:         ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) { 
 1700:         push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
 1701:          &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
 1702:   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
 1703:     <message>(mark them then click "next" button) <br /></message>
 1704:     <resource variable="RESOURCES" toponly='0' multichoice="1"
 1705: 	suppressEmptySequences='0' addstatus="1" closeallpages="1">
 1706:       <nextstate>PAGESIZE</nextstate>
 1707:       <filterfunc>return $isProblemOrMap;</filterfunc>
 1708:       <choicefunc>return $isNotMap;</choicefunc>
 1709:       <valuefunc>return $symbFilter;</valuefunc>
 1710:     </resource>
 1711:   </state>
 1712: ALL_PROBLEMS
 1713: 
 1714: 	if ($helper->{VARS}->{'assignment'}) {
 1715: 	    push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('selected students')."</b>", 'problems_for_students', 'CHOOSE_STUDENTS'];
 1716: 	    push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('anonymous students')."</b>", 'problems_for_anon', 'CHOOSE_ANON1'];
 1717: 	}
 1718: 	my $resource_selector=<<RESOURCE_SELECTOR;
 1719:    <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
 1720:     <resource variable="RESOURCES" multichoice="1" addstatus="1" 
 1721:               closeallpages="1">
 1722:       <filterfunc>return $isProblem;</filterfunc>
 1723:       <mapurl>$map</mapurl>
 1724:       <valuefunc>return $symbFilter;</valuefunc>
 1725:       </resource>
 1726:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
 1727:     <choices variable="EMPTY_PAGES">
 1728:       <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
 1729:       <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
 1730:       <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
 1731:       <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
 1732:     </choices>
 1733:     <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
 1734:     <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
 1735: RESOURCE_SELECTOR
 1736: 
 1737:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
 1738:   <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
 1739:       <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
 1740:     $resource_selector
 1741:   </state>
 1742: CHOOSE_STUDENTS
 1743: 
 1744: 	my $cdom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
 1745: 	my $cnum = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
 1746:         my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 1747: 	my $namechoice='<choice></choice>';
 1748: 	foreach my $name (@names) {
 1749: 	    if ($name =~ /^error: 2 /) { next; }
 1750: 	    $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
 1751: 	}
 1752:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
 1753:   <state name="CHOOSE_ANON1" title="Select Students and Resources">
 1754:     <nextstate>PAGESIZE</nextstate>
 1755:     <message><hr width='33%' /><b>Number of anonymous assignments to print?</b></message>
 1756:     <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5"></string>
 1757:     <message><br /><b>Names to store the CODEs under for later:</b></message>
 1758:     <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
 1759:     <message><hr width='33%' /></message>
 1760:     <message><b>Reprint a set of saved CODEs:</b></message>
 1761:     <dropdown variable="REUSE_OLD_CODES">
 1762:         $namechoice
 1763:     </dropdown>
 1764:     <message><hr width='33%' /></message>
 1765:     $resource_selector
 1766:   </state>
 1767: CHOOSE_ANON1
 1768: 
 1769: 
 1770: 	if ($helper->{VARS}->{'assignment'}) {
 1771: 	    push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('selected students')."</b>", 'resources_for_students', 'CHOOSE_STUDENTS1'];
 1772: 	    push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('anonymous students')."</b>", 'resources_for_anon', 'CHOOSE_ANON2'];
 1773: 	}
 1774: 	    
 1775: 
 1776: 	$resource_selector=<<RESOURCE_SELECTOR;
 1777:     <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
 1778:     <resource variable="RESOURCES" multichoice="1" addstatus="1" 
 1779:               closeallpages="1">
 1780:       <filterfunc>return $isNotMap;</filterfunc>
 1781:       <mapurl>$map</mapurl>
 1782:       <valuefunc>return $symbFilter;</valuefunc>
 1783:       </resource>
 1784:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
 1785:     <choices variable="EMPTY_PAGES">
 1786:       <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
 1787:       <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
 1788:       <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
 1789:       <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
 1790:     </choices>
 1791:     <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
 1792:     <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
 1793: RESOURCE_SELECTOR
 1794: 
 1795: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
 1796:   <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
 1797:     <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
 1798:     $resource_selector
 1799:     </state>
 1800: CHOOSE_STUDENTS1
 1801: 
 1802: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
 1803:   <state name="CHOOSE_ANON2" title="Select Students and Resources">
 1804:     <nextstate>PAGESIZE</nextstate>
 1805:     <message><hr width='33%' /><b>Number of anonymous assignments to print?</b></message>
 1806:     <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5"></string>
 1807:     <message><br /><b>Names to store the CODEs under for later:</b></message>
 1808:     <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
 1809:     <message><hr width='33%' /></message>
 1810:     <message><b>Reprint a set of saved CODEs:</b></message>
 1811:     <dropdown variable="REUSE_OLD_CODES">
 1812:         $namechoice
 1813:     </dropdown>
 1814:     <message><hr width='33%' /></message>
 1815:     $resource_selector
 1816:   </state>
 1817: CHOOSE_ANON2
 1818:     }
 1819: 
 1820:     # FIXME: That RE should come from a library somewhere.
 1821:     if ((((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) or defined $helper->{'VARS'}->{'construction'}) and $ENV{'request.role.adv'} and $subdir ne $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/') {    
 1822:         push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from current subdirectory')." <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
 1823: 
 1824:         my $f = '$filename';
 1825:         my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
 1826:   <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
 1827:     <message>(mark them then click "next" button) <br /></message>
 1828:     <files variable="FILES" multichoice='1'>
 1829:       <nextstate>PAGESIZE</nextstate>
 1830:       <filechoice>return '$subdir';</filechoice>
 1831: CHOOSE_FROM_SUBDIR
 1832:         
 1833:         # this is broken up because I really want interpolation above,
 1834:         # and I really DON'T want it below
 1835:         $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
 1836:       <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
 1837: 	  $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
 1838:       </filefilter>
 1839:       </files>
 1840:     </state>
 1841: CHOOSE_FROM_SUBDIR
 1842:         &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
 1843:     }
 1844: 
 1845:     # Allow the user to select any sequence in the course, feed it to
 1846:     # another resource selector for that sequence
 1847:     if (!$helper->{VARS}->{'construction'}) {
 1848: 	push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
 1849: 			      'select_sequences', 'CHOOSE_SEQUENCE'];
 1850: 	my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
 1851: 	#Escape apostrophes and backslashes for Perl
 1852: 	$escapedSequenceName =~ s/\\/\\\\/g;
 1853: 	$escapedSequenceName =~ s/'/\\'/g;
 1854: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
 1855:   <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
 1856:     <message>Select the sequence to print resources from:</message>
 1857:     <resource variable="SEQUENCE">
 1858:       <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
 1859:       <filterfunc>return \$res->is_sequence;</filterfunc>
 1860:       <valuefunc>return $urlValue;</valuefunc>
 1861:       </resource>
 1862:     </state>
 1863:   <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
 1864:     <message>(mark desired resources then click "next" button) <br /></message>
 1865:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 1866:               closeallpages="1">
 1867:       <nextstate>PAGESIZE</nextstate>
 1868:       <filterfunc>return $isProblem</filterfunc>
 1869:       <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
 1870:       <valuefunc>return $symbFilter;</valuefunc>
 1871:       </resource>
 1872:     </state>
 1873: CHOOSE_FROM_ANY_SEQUENCE
 1874: }
 1875: 
 1876:     # Generate the first state, to select which resources get printed.
 1877:     Apache::lonhelper::state->new("START", "Select Printing Options:");
 1878:     $paramHash = Apache::lonhelper::getParamHash();
 1879:     $paramHash->{MESSAGE_TEXT} = "";
 1880:     Apache::lonhelper::message->new();
 1881:     $paramHash = Apache::lonhelper::getParamHash();
 1882:     $paramHash->{'variable'} = 'PRINT_TYPE';
 1883:     $helper->declareVar('PRINT_TYPE');
 1884:     $paramHash->{CHOICES} = $printChoices;
 1885:     Apache::lonhelper::choices->new();
 1886: 
 1887:     my $startedTable = 0; # have we started an HTML table yet? (need
 1888:                           # to close it later)
 1889: 
 1890:     if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
 1891: 	($helper->{VARS}->{'construction'} eq '1')) {
 1892: 	addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
 1893:         $paramHash = Apache::lonhelper::getParamHash();
 1894: 	$paramHash->{'variable'} = 'ANSWER_TYPE';   
 1895: 	$helper->declareVar('ANSWER_TYPE');         
 1896:         $paramHash->{CHOICES} = [
 1897:                                    ['Without Answers', 'yes'],
 1898:                                    ['With Answers', 'no'],
 1899:                                    ['Only Answers', 'only'],
 1900:                                    ['As Exam Problem', 'exam']
 1901:                                 ];
 1902:         Apache::lonhelper::dropdown->new();
 1903: 	addMessage("</td></tr>");
 1904: 	$startedTable = 1;
 1905:     }
 1906: 
 1907:     if ($ENV{'request.role.adv'}) {
 1908: 	if (!$startedTable) {
 1909: 	    addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
 1910: 	    $startedTable = 1;
 1911: 	} else {
 1912: 	    addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
 1913: 	}
 1914:         $paramHash = Apache::lonhelper::getParamHash();
 1915: 	$paramHash->{'variable'} = 'LATEX_TYPE';   
 1916: 	$helper->declareVar('LATEX_TYPE');  
 1917: 	if ($helper->{VARS}->{'construction'} eq '1') {       
 1918: 	    $paramHash->{CHOICES} = [
 1919: 				     ['standard LaTeX mode', 'standard'], 
 1920: 				     ['LaTeX batchmode', 'batchmode'], ];
 1921: 	} else {
 1922: 	    $paramHash->{CHOICES} = [
 1923: 				     ['LaTeX batchmode', 'batchmode'],
 1924: 				     ['standard LaTeX mode', 'standard'] ];
 1925: 	}
 1926:         Apache::lonhelper::dropdown->new();
 1927:  
 1928: 	addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
 1929:         $paramHash = Apache::lonhelper::getParamHash();
 1930: 	$paramHash->{'variable'} = 'TABLE_CONTENTS';   
 1931: 	$helper->declareVar('TABLE_CONTENTS');         
 1932:         $paramHash->{CHOICES} = [
 1933:                                    ['No', 'no'],
 1934:                                    ['Yes', 'yes'] ];
 1935:         Apache::lonhelper::dropdown->new();
 1936: 	addMessage("</td></tr>");
 1937:         
 1938: 	if (not $helper->{VARS}->{'construction'}) {
 1939: 	    addMessage("<tr><td align='right'>Print Index: </td><td>");
 1940: 	    $paramHash = Apache::lonhelper::getParamHash();
 1941: 	    $paramHash->{'variable'} = 'TABLE_INDEX';   
 1942: 	    $helper->declareVar('TABLE_INDEX');         
 1943: 	    $paramHash->{CHOICES} = [
 1944: 				     ['No', 'no'],
 1945: 				     ['Yes', 'yes'] ];
 1946: 	    Apache::lonhelper::dropdown->new();
 1947: 	    addMessage("</td></tr>");
 1948: 	    addMessage("<tr><td align='right'>Print Discussions: </td><td>");
 1949: 	    $paramHash = Apache::lonhelper::getParamHash();
 1950: 	    $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';   
 1951: 	    $helper->declareVar('PRINT_DISCUSSIONS');         
 1952: 	    $paramHash->{CHOICES} = [
 1953: 				     ['No', 'no'],
 1954: 				     ['Yes', 'yes'] ];
 1955: 	    Apache::lonhelper::dropdown->new();
 1956: 	    addMessage("</td></tr>");
 1957: 	}
 1958: 
 1959: 	if ($helper->{'VARS'}->{'construction'}) { 
 1960: 	    my $stylevalue=$ENV{'construct.style'};
 1961: 	    my $xmlfrag .= <<"RNDSEED";
 1962: 	    <message><tr><td align='right'>Use random seed:  </td><td></message>
 1963: 	    <string variable="curseed" size="15" maxlength="15">
 1964: 		<defaultvalue>
 1965: 	            return $helper->{VARS}->{'curseed'};
 1966: 	        </defaultvalue>
 1967: 	    </string>
 1968: 	     <message></td></tr><tr><td align="right">Use style file:</td><td></message>
 1969:              <message><input type="text" size="40" name="style_file_value" value="$stylevalue"  />&nbsp; <a href="javascript:openbrowser('helpform','style_file','sty')">Select style file</a> </td><td></message>
 1970:              <message></td></tr></message>
 1971: RNDSEED
 1972:             &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
 1973: 	    $helper->{'VARS'}->{'style_file'}=$ENV{'form.style_file_value'};
 1974: 	}
 1975:     }
 1976: 
 1977: 
 1978: 
 1979: 
 1980:     if ($startedTable) {
 1981: 	addMessage("</table>");
 1982:     }
 1983: 
 1984:     Apache::lonprintout::page_format_state->new("FORMAT");
 1985: 
 1986:     # Generate the PAGESIZE state which will offer the user the margin
 1987:     # choices if they select one column
 1988:     Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
 1989:     Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
 1990: 
 1991: 
 1992:     $helper->process();
 1993: 
 1994:     # MANUAL BAILOUT CONDITION:
 1995:     # If we're in the "final" state, bailout and return to handler
 1996:     if ($helper->{STATE} eq 'FINAL') {
 1997:         return $helper;
 1998:     }    
 1999: 
 2000:     $r->print($helper->display());
 2001: 
 2002:     Apache::lonhelper::unregisterHelperTags();
 2003: 
 2004:     untie %hash;
 2005: 
 2006:     return OK;
 2007: }
 2008: 
 2009: 
 2010: 1;
 2011: 
 2012: package Apache::lonprintout::page_format_state;
 2013: 
 2014: =pod
 2015: 
 2016: =head1 Helper element: page_format_state
 2017: 
 2018: See lonhelper.pm documentation for discussion of the helper framework.
 2019: 
 2020: Apache::lonprintout::page_format_state is an element that gives the 
 2021: user an opportunity to select the page layout they wish to print 
 2022: with: Number of columns, portrait/landscape, and paper size. If you 
 2023: want to change the paper size choices, change the @paperSize array 
 2024: contents in this package.
 2025: 
 2026: page_format_state is always directly invoked in lonprintout.pm, so there
 2027: is no tag interface. You actually pass parameters to the constructor.
 2028: 
 2029: =over 4
 2030: 
 2031: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 2032: 
 2033: =back
 2034: 
 2035: =cut
 2036: 
 2037: use Apache::lonhelper;
 2038: 
 2039: no strict;
 2040: @ISA = ("Apache::lonhelper::element");
 2041: use strict;
 2042: use Apache::lonlocal;
 2043: 
 2044: my $maxColumns = 2;
 2045: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]", 
 2046:                  "tabloid (ladger) [11x17 in]", "executive [7 1/2x10 in]",
 2047:                  "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]", 
 2048:                  "a5 [148x210 mm]", "a6 [105x148 mm]" );
 2049: 
 2050: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
 2051: #                   Paper type
 2052: 
 2053: sub new { 
 2054:     my $self = Apache::lonhelper::element->new();
 2055: 
 2056:     shift;
 2057: 
 2058:     $self->{'variable'} = shift;
 2059:     my $helper = Apache::lonhelper::getHelper();
 2060:     $helper->declareVar($self->{'variable'});
 2061:     bless($self);
 2062:     return $self;
 2063: }
 2064: 
 2065: sub render {
 2066:     my $self = shift;
 2067:     my $helper = Apache::lonhelper::getHelper();
 2068:     my $result = '';
 2069:     my $var = $self->{'variable'};
 2070:     my $PageLayout=&mt('Page layout');
 2071:     my $NumberOfColumns=&mt('Number of columns');
 2072:     my $PaperType=&mt('Paper type');
 2073:     $result .= <<STATEHTML;
 2074: 
 2075: <hr width="33%" />
 2076: <table cellpadding="3">
 2077:   <tr>
 2078:     <td align="center"><b>$PageLayout</b></td>
 2079:     <td align="center"><b>$NumberOfColumns</b></td>
 2080:     <td align="center"><b>$PaperType</b></td>
 2081:   </tr>
 2082:   <tr>
 2083:     <td>
 2084:       <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
 2085:       <input type="radio" name="${var}.layout" value="P" checked='1'  /> Portrait
 2086:     </td>
 2087:     <td align="center">
 2088:       <select name="${var}.cols">
 2089: STATEHTML
 2090: 
 2091:     my $i;
 2092:     for ($i = 1; $i <= $maxColumns; $i++) {
 2093:         if ($i == 2) {
 2094:             $result .= "<option value='$i' selected>$i</option>\n";
 2095:         } else {
 2096:             $result .= "<option value='$i'>$i</option>\n";
 2097:         }
 2098:     }
 2099: 
 2100:     $result .= "</select></td><td>\n";
 2101:     $result .= "<select name='${var}.paper'>\n";
 2102: 
 2103:     my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
 2104:     my $DefaultPaperSize=$parmhash{'default_paper_size'};
 2105:     if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
 2106:     $i = 0;
 2107:     foreach (@paperSize) {
 2108: 	$_=~/(\w+)/;
 2109: 	my $papersize=$1;
 2110:         if ($paperSize[$i]=~/$DefaultPaperSize/) {
 2111:             $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
 2112:         } else {
 2113:             $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
 2114:         }
 2115:         $i++;
 2116:     }
 2117:     $result .= "</select></td></tr></table>";
 2118:     return $result;
 2119: }
 2120: 
 2121: sub postprocess {
 2122:     my $self = shift;
 2123: 
 2124:     my $var = $self->{'variable'};
 2125:     my $helper = Apache::lonhelper->getHelper();
 2126:     $helper->{VARS}->{$var} = 
 2127:         $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
 2128:         $ENV{"form.$var.paper"};
 2129:     return 1;
 2130: }
 2131: 
 2132: 1;
 2133: 
 2134: package Apache::lonprintout::page_size_state;
 2135: 
 2136: =pod
 2137: 
 2138: =head1 Helper element: page_size_state
 2139: 
 2140: See lonhelper.pm documentation for discussion of the helper framework.
 2141: 
 2142: Apache::lonprintout::page_size_state is an element that gives the 
 2143: user the opportunity to further refine the page settings if they
 2144: select a single-column page.
 2145: 
 2146: page_size_state is always directly invoked in lonprintout.pm, so there
 2147: is no tag interface. You actually pass parameters to the constructor.
 2148: 
 2149: =over 4
 2150: 
 2151: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 2152: 
 2153: =back
 2154: 
 2155: =cut
 2156: 
 2157: use Apache::lonhelper;
 2158: 
 2159: no strict;
 2160: @ISA = ("Apache::lonhelper::element");
 2161: use strict;
 2162: 
 2163: 
 2164: 
 2165: sub new { 
 2166:     my $self = Apache::lonhelper::element->new();
 2167: 
 2168:     shift; # disturbs me (probably prevents subclassing) but works (drops
 2169:            # package descriptor)... - Jeremy
 2170: 
 2171:     $self->{'variable'} = shift;
 2172:     my $helper = Apache::lonhelper::getHelper();
 2173:     $helper->declareVar($self->{'variable'});
 2174: 
 2175:     # The variable name of the format element, so we can look into 
 2176:     # $helper->{VARS} to figure out whether the columns are one or two
 2177:     $self->{'formatvar'} = shift;
 2178: 
 2179:     # The state to transition to after selection, or after discovering
 2180:     # the cols are not set to 1
 2181:     $self->{NEXTSTATE} = shift;
 2182:     bless($self);
 2183:     return $self;
 2184: }
 2185: 
 2186: sub render {
 2187:     my $self = shift;
 2188:     my $helper = Apache::lonhelper::getHelper();
 2189:     my $result = '';
 2190:     my $var = $self->{'variable'};
 2191: 
 2192:     if (defined $self->{ERROR_MSG}) {
 2193:         $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
 2194:     }
 2195: 
 2196:     $result .= <<ELEMENTHTML;
 2197: 
 2198: <p>How should the column be formatted?</p>
 2199: 
 2200: <table cellpadding='3'>
 2201:   <tr>
 2202:     <td align='right'><b>Width</b>:</td>
 2203:     <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
 2204:     <td align='left'>
 2205:       <select name='$var.widthunit'>
 2206:         <option>cm</option><option>in</option>
 2207:       </select>
 2208:     </td>
 2209:   </tr>
 2210:   <tr>
 2211:     <td align='right'><b>Height</b>:</td>
 2212:     <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
 2213:     <td align='left'>
 2214:       <select name='$var.heightunit'>
 2215:         <option>cm</option><option>in</option>
 2216:       </select>
 2217:     </td>
 2218:   </tr>
 2219:   <tr>
 2220:     <td align='right'><b>Left margin</b>:</td>
 2221:     <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
 2222:     <td align='left'>
 2223:       <select name='$var.lmarginunit'>
 2224:         <option>cm</option><option>in</option>
 2225:       </select>
 2226:     </td>
 2227:   </tr>
 2228: </table>
 2229: 
 2230: <p>Hint: Some instructors like to leave scratch space for the student by
 2231: making the width much smaller than the width of the page.</p>
 2232: 
 2233: ELEMENTHTML
 2234: 
 2235:     return $result;
 2236: }
 2237: 
 2238: # If the user didn't select 1 column, skip this state.
 2239: sub preprocess {
 2240:     my $self = shift;
 2241:     my $helper = Apache::lonhelper::getHelper();
 2242: 
 2243:     my $format = $helper->{VARS}->{$self->{'formatvar'}};
 2244:     if (substr($format, 2, 1) ne '1') {
 2245:         $helper->changeState($self->{NEXTSTATE});
 2246:     }
 2247:    
 2248:     return 1;
 2249: }
 2250: 
 2251: sub postprocess {
 2252:     my $self = shift;
 2253: 
 2254:     my $var = $self->{'variable'};
 2255:     my $helper = Apache::lonhelper->getHelper();
 2256:     my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; 
 2257:     my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; 
 2258:     my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; 
 2259:     $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; 
 2260:     $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; 
 2261:     $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; 
 2262: 
 2263:     my $error = '';
 2264: 
 2265:     # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
 2266:     # by an optional period, followed by digits, ending the string
 2267: 
 2268:     if ($width !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2269:         $error .= "Invalid width; please type only a number.<br />\n";
 2270:     }
 2271:     if ($height !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2272:         $error .= "Invalid height; please type only a number.<br />\n";
 2273:     }
 2274:     if ($lmargin !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2275:         $error .= "Invalid left margin; please type only a number.<br />\n";
 2276:     }
 2277: 
 2278:     if (!$error) {
 2279:         Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
 2280:         return 1;
 2281:     } else {
 2282:         $self->{ERROR_MSG} = $error;
 2283:         return 0;
 2284:     }
 2285: }
 2286: 
 2287: 
 2288: 
 2289: __END__
 2290: 

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