File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.365: download - view: text, annotated - select for diffs
Tue Feb 22 23:32:48 2005 UTC (19 years, 3 months ago) by foxr
Branches: MAIN
CVS tags: HEAD
Print all resources used to just work by accident because of
a typo on the </mapurl> closing tag for the <mapurl> that should
really never have been there !!!

    1: #  The LearningOnline Network
    2: # Printout
    3: #
    4: # $Id: lonprintout.pm,v 1.365 2005/02/22 23:32:48 foxr 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: 
   45: #   Compare two students by name.  The students are in the form
   46: #   returned by the helper:
   47: #      user:domain:section:last,   first:status
   48: #   This is a helper function for the perl sort built-in  therefore:
   49: # Implicit Inputs:
   50: #    $a     - The first element to compare (global)
   51: #    $b     - The second element to compare (global)
   52: # Returns:
   53: #   -1   - $a < $b
   54: #    0   - $a == $b
   55: #   +1   - $a > $b
   56: #   Note that the initial comparison is done on the last names with the
   57: #   first names only used to break the tie.
   58: #
   59: #
   60: sub compare_names {
   61:     #  First split the names up into the primary fields.
   62: 
   63:     my ($u1, $d1, $s1, $n1, $stat1) = split(/:/, $a);
   64:     my ($u2, $d2, $s2, $n2, $stat2) = split(/:/, $b);
   65: 
   66:     # Now split the last name and first name of each n:
   67:     #
   68: 
   69:     my ($l1,$f1) = split(/,/, $n1);
   70:     my ($l2,$f2) = split(/,/, $n2);
   71: 
   72:     # We don't bother to remove the leading/trailing whitespace from the
   73:     # firstname, unless the last names compare identical.
   74: 
   75:     if($l1 lt $l2) {
   76: 	return -1;
   77:     }
   78:     if($l1 gt $l2) {
   79: 	return  1;
   80:     }
   81: 
   82:     # Break the tie on the first name, but there are leading (possibly trailing
   83:     # whitespaces to get rid of first 
   84:     #
   85:     $f1 =~ s/^\s+//;		# Remove leading...
   86:     $f1 =~ s/\s+$//;		# Trailing spaces from first 1...
   87:     
   88:     $f2 =~ s/^\s+//;
   89:     $f2 =~ s/\s+$//;		# And the same for first 2...
   90: 
   91:     if($f1 lt $f2) {
   92: 	return -1;
   93:     }
   94:     if($f1 gt $f2) {
   95: 	return 1;
   96:     }
   97:     
   98:     #  Must be the same name.
   99: 
  100:     return 0;
  101: }
  102: 
  103: sub latex_header_footer_remove {
  104:     my $text = shift;
  105:     $text =~ s/\\end{document}//;
  106:     $text =~ s/\\documentclass([^&]*)\\begin{document}//;
  107:     return $text;
  108: }
  109: 
  110: 
  111: sub character_chart {
  112:     my $result = shift;	
  113:     $result =~ s/&\#0?0?(7|9);//g;
  114:     $result =~ s/&\#0?(10|13);//g;
  115:     $result =~ s/&\#0?32;/ /g;
  116:     $result =~ s/&\#0?33;/!/g;
  117:     $result =~ s/&(\#0?34|quot);/\"/g;
  118:     $result =~ s/&\#0?35;/\\\#/g;
  119:     $result =~ s/&\#0?36;/\\\$/g;
  120:     $result =~ s/&\#0?37;/\\%/g; 
  121:     $result =~ s/&(\#0?38|amp);/\\&/g; 
  122:     $result =~ s/&\#(0?39|146);/\'/g;
  123:     $result =~ s/&\#0?40;/(/g;
  124:     $result =~ s/&\#0?41;/)/g;
  125:     $result =~ s/&\#0?42;/\*/g;
  126:     $result =~ s/&\#0?43;/\+/g;
  127:     $result =~ s/&\#(0?44|130);/,/g;
  128:     $result =~ s/&\#0?45;/-/g;
  129:     $result =~ s/&\#0?46;/\./g;
  130:     $result =~ s/&\#0?47;/\//g;
  131:     $result =~ s/&\#0?48;/0/g;
  132:     $result =~ s/&\#0?49;/1/g;
  133:     $result =~ s/&\#0?50;/2/g;
  134:     $result =~ s/&\#0?51;/3/g;
  135:     $result =~ s/&\#0?52;/4/g;
  136:     $result =~ s/&\#0?53;/5/g;
  137:     $result =~ s/&\#0?54;/6/g;
  138:     $result =~ s/&\#0?55;/7/g;
  139:     $result =~ s/&\#0?56;/8/g;
  140:     $result =~ s/&\#0?57;/9/g;
  141:     $result =~ s/&\#0?58;/:/g;
  142:     $result =~ s/&\#0?59;/;/g;
  143:     $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
  144:     $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
  145:     $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
  146:     $result =~ s/&\#0?63;/\?/g;
  147:     $result =~ s/&\#0?65;/A/g;
  148:     $result =~ s/&\#0?66;/B/g;
  149:     $result =~ s/&\#0?67;/C/g;
  150:     $result =~ s/&\#0?68;/D/g;
  151:     $result =~ s/&\#0?69;/E/g;
  152:     $result =~ s/&\#0?70;/F/g;
  153:     $result =~ s/&\#0?71;/G/g;
  154:     $result =~ s/&\#0?72;/H/g;
  155:     $result =~ s/&\#0?73;/I/g;
  156:     $result =~ s/&\#0?74;/J/g;
  157:     $result =~ s/&\#0?75;/K/g;
  158:     $result =~ s/&\#0?76;/L/g;
  159:     $result =~ s/&\#0?77;/M/g;
  160:     $result =~ s/&\#0?78;/N/g;
  161:     $result =~ s/&\#0?79;/O/g;
  162:     $result =~ s/&\#0?80;/P/g;
  163:     $result =~ s/&\#0?81;/Q/g;
  164:     $result =~ s/&\#0?82;/R/g;
  165:     $result =~ s/&\#0?83;/S/g;
  166:     $result =~ s/&\#0?84;/T/g;
  167:     $result =~ s/&\#0?85;/U/g;
  168:     $result =~ s/&\#0?86;/V/g;
  169:     $result =~ s/&\#0?87;/W/g;
  170:     $result =~ s/&\#0?88;/X/g;
  171:     $result =~ s/&\#0?89;/Y/g;
  172:     $result =~ s/&\#0?90;/Z/g;
  173:     $result =~ s/&\#0?91;/[/g;
  174:     $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
  175:     $result =~ s/&\#0?93;/]/g;
  176:     $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
  177:     $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
  178:     $result =~ s/&\#(0?96|145);/\`/g;
  179:     $result =~ s/&\#0?97;/a/g;
  180:     $result =~ s/&\#0?98;/b/g;
  181:     $result =~ s/&\#0?99;/c/g;
  182:     $result =~ s/&\#100;/d/g;
  183:     $result =~ s/&\#101;/e/g;
  184:     $result =~ s/&\#102;/f/g;
  185:     $result =~ s/&\#103;/g/g;
  186:     $result =~ s/&\#104;/h/g;
  187:     $result =~ s/&\#105;/i/g;
  188:     $result =~ s/&\#106;/j/g;
  189:     $result =~ s/&\#107;/k/g;
  190:     $result =~ s/&\#108;/l/g;
  191:     $result =~ s/&\#109;/m/g;
  192:     $result =~ s/&\#110;/n/g;
  193:     $result =~ s/&\#111;/o/g;
  194:     $result =~ s/&\#112;/p/g;
  195:     $result =~ s/&\#113;/q/g;
  196:     $result =~ s/&\#114;/r/g;
  197:     $result =~ s/&\#115;/s/g;
  198:     $result =~ s/&\#116;/t/g;
  199:     $result =~ s/&\#117;/u/g;
  200:     $result =~ s/&\#118;/v/g;
  201:     $result =~ s/&\#119;/w/g;
  202:     $result =~ s/&\#120;/x/g;
  203:     $result =~ s/&\#121;/y/g;
  204:     $result =~ s/&\#122;/z/g;
  205:     $result =~ s/&\#123;/\\{/g;
  206:     $result =~ s/&\#124;/\|/g;
  207:     $result =~ s/&\#125;/\\}/g;
  208:     $result =~ s/&\#126;/\~/g;
  209:     $result =~ s/&\#131;/\\textflorin /g;
  210:     $result =~ s/&\#132;/\"/g;
  211:     $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
  212:     $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
  213:     $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
  214:     $result =~ s/&\#137;/\\textperthousand /g;
  215:     $result =~ s/&\#140;/{\\OE}/g;
  216:     $result =~ s/&\#147;/\`\`/g;
  217:     $result =~ s/&\#148;/\'\'/g;
  218:     $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
  219:     $result =~ s/&\#150;/--/g;
  220:     $result =~ s/&\#151;/---/g;
  221:     $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
  222:     $result =~ s/&\#153;/\\texttrademark /g;
  223:     $result =~ s/&\#156;/\\oe/g;
  224:     $result =~ s/&\#159;/\\\"Y/g;
  225:     $result =~ s/&(\#160|nbsp);/~/g;
  226:     $result =~ s/&(\#161|iexcl);/!\`/g;
  227:     $result =~ s/&(\#162|cent);/\\textcent /g;
  228:     $result =~ s/&(\#163|pound);/\\pounds /g; 
  229:     $result =~ s/&(\#164|curren);/\\textcurrency /g;
  230:     $result =~ s/&(\#165|yen);/\\textyen /g;
  231:     $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
  232:     $result =~ s/&(\#167|sect);/\\textsection /g;
  233:     $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
  234:     $result =~ s/&(\#169|copy);/\\copyright /g;
  235:     $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
  236:     $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
  237:     $result =~ s/&(\#173|shy);/ - /g;
  238:     $result =~ s/&(\#174|reg);/\\textregistered /g;
  239:     $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
  240:     $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
  241:     $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
  242:     $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
  243:     $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
  244:     $result =~ s/&(\#180|acute);/\\textacute /g;
  245:     $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
  246:     $result =~ s/&(\#182|para);/\\P/g;
  247:     $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
  248:     $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
  249:     $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
  250:     $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
  251:     $result =~ s/&(\#188|frac14);/\\textonequarter /g;
  252:     $result =~ s/&(\#189|frac12);/\\textonehalf /g;
  253:     $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
  254:     $result =~ s/&(\#191|iquest);/?\`/g;   
  255:     $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
  256:     $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
  257:     $result =~ s/&(\#194|Acirc);/\\^{A}/g;
  258:     $result =~ s/&(\#195|Atilde);/\\~{A}/g;
  259:     $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
  260:     $result =~ s/&(\#197|Aring);/{\\AA}/g;
  261:     $result =~ s/&(\#198|AElig);/{\\AE}/g;
  262:     $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
  263:     $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
  264:     $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
  265:     $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
  266:     $result =~ s/&(\#203|Euml);/\\\"{E}/g;
  267:     $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
  268:     $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
  269:     $result =~ s/&(\#206|Icirc);/\\^{I}/g;
  270:     $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
  271:     $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
  272:     $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
  273:     $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
  274:     $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
  275:     $result =~ s/&(\#213|Otilde);/\\~{O}/g;
  276:     $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
  277:     $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
  278:     $result =~ s/&(\#216|Oslash);/{\\O}/g;
  279:     $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
  280:     $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
  281:     $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
  282:     $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
  283:     $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
  284:     $result =~ s/&(\#223|szlig);/{\\ss}/g;
  285:     $result =~ s/&(\#224|agrave);/\\\`{a}/g;
  286:     $result =~ s/&(\#225|aacute);/\\\'{a}/g;
  287:     $result =~ s/&(\#226|acirc);/\\^{a}/g;
  288:     $result =~ s/&(\#227|atilde);/\\~{a}/g;
  289:     $result =~ s/&(\#228|auml);/\\\"{a}/g;
  290:     $result =~ s/&(\#229|aring);/{\\aa}/g;
  291:     $result =~ s/&(\#230|aelig);/{\\ae}/g;
  292:     $result =~ s/&(\#231|ccedil);/\\c{c}/g;
  293:     $result =~ s/&(\#232|egrave);/\\\`{e}/g;
  294:     $result =~ s/&(\#233|eacute);/\\\'{e}/g;
  295:     $result =~ s/&(\#234|ecirc);/\\^{e}/g;
  296:     $result =~ s/&(\#235|euml);/\\\"{e}/g;
  297:     $result =~ s/&(\#236|igrave);/\\\`{i}/g;
  298:     $result =~ s/&(\#237|iacute);/\\\'{i}/g;
  299:     $result =~ s/&(\#238|icirc);/\\^{i}/g;
  300:     $result =~ s/&(\#239|iuml);/\\\"{i}/g;
  301:     $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
  302:     $result =~ s/&(\#241|ntilde);/\\~{n}/g;
  303:     $result =~ s/&(\#242|ograve);/\\\`{o}/g;
  304:     $result =~ s/&(\#243|oacute);/\\\'{o}/g;
  305:     $result =~ s/&(\#244|ocirc);/\\^{o}/g;
  306:     $result =~ s/&(\#245|otilde);/\\~{o}/g;
  307:     $result =~ s/&(\#246|ouml);/\\\"{o}/g;
  308:     $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
  309:     $result =~ s/&(\#248|oslash);/{\\o}/g;
  310:     $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
  311:     $result =~ s/&(\#250|uacute);/\\\'{u}/g;
  312:     $result =~ s/&(\#251|ucirc);/\\^{u}/g;
  313:     $result =~ s/&(\#252|uuml);/\\\"{u}/g;
  314:     $result =~ s/&(\#253|yacute);/\\\'{y}/g;
  315:     $result =~ s/&(\#255|yuml);/\\\"{y}/g;
  316:     $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
  317: #Greek Alphabet
  318:     $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
  319:     $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
  320:     $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
  321:     $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
  322:     $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
  323:     $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
  324:     $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
  325:     $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
  326:     $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
  327:     $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
  328:     $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
  329:     $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
  330:     $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
  331:     $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
  332:     $result =~ s/&(omicron|\#959);/o/g;
  333:     $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
  334:     $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
  335:     $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
  336:     $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
  337:     $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
  338:     $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
  339:     $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
  340:     $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
  341:     $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
  342:     $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
  343:     $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
  344:     $result =~ s/&(Alpha|\#913);/A/g;
  345:     $result =~ s/&(Beta|\#914);/B/g;
  346:     $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
  347:     $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
  348:     $result =~ s/&(Epsilon|\#917);/E/g;
  349:     $result =~ s/&(Zeta|\#918);/Z/g;
  350:     $result =~ s/&(Eta|\#919);/H/g;
  351:     $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
  352:     $result =~ s/&(Iota|\#921);/I/g;
  353:     $result =~ s/&(Kappa|\#922);/K/g;
  354:     $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
  355:     $result =~ s/&(Mu|\#924);/M/g;
  356:     $result =~ s/&(Nu|\#925);/N/g;
  357:     $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
  358:     $result =~ s/&(Omicron|\#927);/O/g;
  359:     $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
  360:     $result =~ s/&(Rho|\#929);/P/g;
  361:     $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
  362:     $result =~ s/&(Tau|\#932);/T/g;
  363:     $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
  364:     $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
  365:     $result =~ s/&(Chi|\#935);/X/g;
  366:     $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
  367:     $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
  368: #Arrows (extended HTML 4.01)
  369:     $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
  370:     $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
  371:     $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
  372:     $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
  373:     $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
  374:     $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
  375:     $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
  376:     $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
  377:     $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
  378:     $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
  379: #Mathematical Operators (extended HTML 4.01)
  380:     $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
  381:     $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
  382:     $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
  383:     $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
  384:     $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
  385:     $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
  386:     $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
  387:     $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
  388:     $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
  389:     $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
  390:     $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
  391:     $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
  392:     $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
  393:     $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
  394:     $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
  395:     $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
  396:     $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
  397:     $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
  398:     $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
  399:     $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
  400:     $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
  401:     $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
  402:     $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
  403:     $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
  404:     $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
  405:     $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
  406:     $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
  407:     $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
  408:     $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
  409:     $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
  410:     $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
  411:     $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
  412:     $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
  413:     $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
  414:     $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
  415:     $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
  416:     $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
  417: #Geometric Shapes (extended HTML 4.01)
  418:     $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
  419: #Miscellaneous Symbols (extended HTML 4.01)
  420:     $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
  421:     $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
  422:     $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
  423:     $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
  424:     return $result;
  425: }
  426: 
  427: 
  428:                   #width, height, oddsidemargin, evensidemargin, topmargin
  429: my %page_formats=
  430:     ('letter' => {
  431: 	 'book' => {
  432: 	     '1' => [ '7.1 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm'],
  433: 	     '2' => ['3.66 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm']
  434: 	 },
  435: 	 'album' => {
  436: 	     '1' => [ '8.8 in', '6.8 in','-40 pt in',  '-60 pt','1 cm'],
  437: 	     '2' => [ '4.4 in', '6.8 in','-0.5 in', '-1.5 in','3.5 in']
  438: 	 },
  439:      },
  440:      'legal' => {
  441: 	 'book' => {
  442: 	     '1' => ['7.1 in','13 in',,'-0.57 in','-0.57 in','-0.5 in'],
  443: 	     '2' => ['3.16 in','13 in','-0.57 in','-0.57 in','-0.5 in']
  444: 	 },
  445: 	 'album' => {
  446: 	     '1' => [],
  447: 	     '2' => []
  448:           },
  449:      },
  450:      'tabloid' => {
  451: 	 'book' => {
  452: 	     '1' => ['9.8 in','16 in','-0.57 in','-0.57 in','-0.5 in'],
  453: 	     '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in']
  454: 	 },
  455: 	 'album' => {
  456: 	     '1' => [],
  457: 	     '2' => []
  458:           },
  459:      },
  460:      'executive' => {
  461: 	 'book' => {
  462: 	     '1' => ['6.8 in','9 in','-0.57 in','-0.57 in','1.2 in'],
  463: 	     '2' => ['3.1 in','9 in','-0.57 in','-0.57 in','1.2 in']
  464: 	 },
  465: 	 'album' => {
  466: 	     '1' => [],
  467: 	     '2' => []
  468:           },
  469:      },
  470:      'a2' => {
  471: 	 'book' => {
  472: 	     '1' => [],
  473: 	     '2' => []
  474: 	 },
  475: 	 'album' => {
  476: 	     '1' => [],
  477: 	     '2' => []
  478:           },
  479:      },
  480:      'a3' => {
  481: 	 'book' => {
  482: 	     '1' => [],
  483: 	     '2' => []
  484: 	 },
  485: 	 'album' => {
  486: 	     '1' => [],
  487: 	     '2' => []
  488:           },
  489:      },
  490:      'a4' => {
  491: 	 'book' => {
  492: 	     '1' => ['176 mm','272 mm','-40 pt in','-60 pt','-0.5 in'],
  493: 	     '2' => [ '91 mm','272 mm','-40 pt in','-60 pt','-0.5 in']
  494: 	 },
  495: 	 'album' => {
  496: 	     '1' => ['8.5 in','7.7 in','-40 pt in','-60 pt','0 in'],
  497: 	     '2' => ['3.9 in','7.7 in','-40 pt in','-60 pt','0 in']
  498: 	 },
  499:      },
  500:      'a5' => {
  501: 	 'book' => {
  502: 	     '1' => [],
  503: 	     '2' => []
  504: 	 },
  505: 	 'album' => {
  506: 	     '1' => [],
  507: 	     '2' => []
  508:           },
  509:      },
  510:      'a6' => {
  511: 	 'book' => {
  512: 	     '1' => [],
  513: 	     '2' => []
  514: 	 },
  515: 	 'album' => {
  516: 	     '1' => [],
  517: 	     '2' => []
  518:           },
  519:      },
  520:      );
  521: 
  522: sub page_format {
  523: #
  524: #Supported paper format: "Letter [8 1/2x11 in]",      "Legal [8 1/2x14 in]",
  525: #                        "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
  526: #                        "A2 [420x594 mm]",           "A3 [297x420 mm]",
  527: #                        "A4 [210x297 mm]",           "A5 [148x210 mm]",
  528: #                        "A6 [105x148 mm]"
  529: # 
  530:     my ($papersize,$layout,$numberofcolumns) = @_; 
  531:     return @{$page_formats{$papersize}->{$layout}->{$numberofcolumns}};
  532: }
  533: 
  534: 
  535: sub get_name {
  536:     my ($uname,$udom)=@_;
  537:     if (!defined($uname)) { $uname=$ENV{'user.name'}; }
  538:     if (!defined($udom)) { $udom=$ENV{'user.domain'}; }
  539:     my $plainname=&Apache::loncommon::plainname($uname,$udom);
  540:     if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
  541:     $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
  542:     return $plainname;
  543: }
  544: 
  545: sub get_course {
  546:     my $courseidinfo;
  547:     if (defined($ENV{'request.course.id'})) {
  548: 	$courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'header');
  549:     }
  550:     return $courseidinfo;
  551: }
  552: 
  553: sub page_format_transformation {
  554:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_; 
  555:     my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
  556:     if ($selectionmade eq '4') {
  557: 	$assignment='Problems from the Whole Course';
  558:     } else {
  559: 	$assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
  560:     }
  561:     ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
  562:     my $name = &get_name();
  563:     my $courseidinfo = &get_course();
  564:     if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
  565:     my $topmargintoinsert = '';
  566:     if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
  567:     my $fancypagestatement='';
  568:     if ($numberofcolumns eq '2') {
  569: 	$fancypagestatement="\\fancyhead{}\\fancyhead[LO]{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
  570:     } else {
  571: 	$fancypagestatement="\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
  572:     }
  573:     if ($layout eq 'album') {
  574: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\n\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\n\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\n\\pagestyle{fancy}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}\n /;
  575:     } elsif ($layout eq 'book') {
  576: 	if ($choice ne 'All class print') { 
  577: 	    $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\n\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\n\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\\pagestyle{fancy}$fancypagestatement\\begin{document}\n\\voffset=-0\.8 cm\\setcounter{page}{1}\n/;
  578: 	} else {
  579: 	    $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\n\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\n\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\n\\setcounter{page}{1}  \\vskip 5 mm\n /;
  580: 	}
  581: 	if ($papersize eq 'a4') {
  582: 	    $text =~ s/(\\begin{document})/$1\\special{papersize=210mm,297mm}/;
  583: 	}
  584:     }
  585:     if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
  586:     if ($indexlist eq 'yes') {
  587: 	$text=~s/(\\begin{document})/\\makeindex $1/;
  588: 	$text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
  589:     }
  590:     return $text;
  591: }
  592: 
  593: 
  594: sub page_cleanup {
  595:     my $result = shift;	
  596:  
  597:     $result =~ m/\\end{document}(\d*)$/;
  598:     my $number_of_columns = $1;
  599:     my $insert = '{';
  600:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
  601:     $insert .= '}';
  602:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
  603:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
  604:     return $result,$number_of_columns;
  605: }
  606: 
  607: 
  608: sub details_for_menu {
  609:     my ($helper)=@_;
  610:     my $postdata=$ENV{'form.postdata'};
  611:     if (!$postdata) { $postdata=$helper->{VARS}{'postdata'}; }
  612:     my $name_of_resource = &Apache::lonnet::gettitle($postdata);
  613:     my $symbolic = &Apache::lonnet::symbread($postdata);
  614:     my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
  615:     $map=&Apache::lonnet::clutter($map);
  616:     my $name_of_sequence = &Apache::lonnet::gettitle($map);
  617:     if ($name_of_sequence =~ /^\s*$/) {
  618: 	$map =~ m|([^/]+)$|;
  619: 	$name_of_sequence = $1;
  620:     }
  621:     my $name_of_map = &Apache::lonnet::gettitle($ENV{'request.course.uri'});
  622:     if ($name_of_map =~ /^\s*$/) {
  623: 	$ENV{'request.course.uri'} =~ m|([^/]+)$|;
  624: 	$name_of_map = $1;
  625:     }
  626:     return ($name_of_resource,$name_of_sequence,$name_of_map);
  627: }
  628: 
  629: 
  630: sub latex_corrections {
  631: 
  632:     my ($number_of_columns,$result,$selectionmade) = @_;
  633: 
  634: #    $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
  635:     $result =~ s/\$number_of_columns/$number_of_columns/g;
  636:     if ($selectionmade ne '1') {
  637: 	$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/;
  638:     } else {
  639: 	$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/;
  640:     }
  641:     $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
  642:     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
  643: #-- LaTeX corrections     
  644:     my $first_comment = index($result,'<!--',0);
  645:     while ($first_comment != -1) {
  646: 	my $end_comment = index($result,'-->',$first_comment);
  647: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
  648: 	$first_comment = index($result,'<!--',$first_comment);
  649:     }
  650:     $result =~ s/^\s+$//gm; #remove empty lines
  651:     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
  652:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
  653:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
  654:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
  655:     $result =~ s/\\\\\s+\[/ \[/g;
  656:     #conversion of html characters to LaTeX equivalents
  657:     if ($result =~ m/&(\w+|#\d+);/) {
  658: 	$result = &character_chart($result);
  659:     }
  660:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
  661:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
  662: 
  663:     return $result;
  664: }
  665: 
  666: 
  667: sub index_table {
  668:     my $currentURL = shift;
  669:     my $insex_string='';
  670:     $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
  671:     $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
  672:     return $insex_string;
  673: }
  674: 
  675: 
  676: sub IndexCreation {
  677:     my ($texversion,$currentURL)=@_;
  678:     my @key_words=split(/,/,&index_table($currentURL));
  679:     my $chunk='';
  680:     my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
  681:     if ($st>0) {
  682: 	for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
  683: 	$chunk=substr($texversion,0,$st+1);
  684: 	substr($texversion,0,$st+1)=' ';
  685:     }
  686:     foreach my $key_word (@key_words) {
  687: 	if ($key_word=~/\S+/) {
  688: 	    $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
  689: 	}
  690:     }			
  691:     if ($st>0) {substr($texversion,0,1)=$chunk;}
  692:     return $texversion;
  693: }
  694: 
  695: sub print_latex_header {
  696:     my $mode=shift;
  697:     my $output='\documentclass[letterpaper]{article}';
  698:     if (($mode eq 'batchmode') || (!$ENV{'request.role.adv'})) {
  699: 	$output.='\batchmode';
  700:     }
  701:     $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'."\n".
  702: 	     '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'."\n".
  703: 	     '\usepackage[dvips]{graphicx}\usepackage{epsfig}'."\n".
  704: 	     '\usepackage{picins}\usepackage{calc}'."\n".
  705: 	     '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'."\n".
  706: 	     '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'."\n".
  707: 	     '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'."\n".
  708: 	     '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'."\n".
  709: 	     '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
  710: 	     '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'."\n".
  711: 	     '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'."\n".
  712: 	     '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'."\n".
  713: 	     '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'."\n".
  714: 	     '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'."\n".
  715: 	     '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'."\n".
  716: 	     '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
  717: 	     '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}'."\n";
  718:     return $output;	     
  719: }
  720: 
  721: sub path_to_problem {
  722:     my ($urlp,$colwidth)=@_;
  723:     my $newurlp = '';
  724:     $colwidth=~s/\s*mm\s*$//;
  725: #characters average about 2 mm in width
  726:     if (length($urlp)*2 > $colwidth) {
  727: 	my @elements = split '/',$urlp;
  728: 	my $curlength=0;
  729: 	foreach my $element (@elements) {
  730: 	    if ($curlength+(length($element)*2) > $colwidth) {
  731: 		$newurlp .=  '|\vskip -1 mm \noindent \verb|';
  732: 		$curlength=0;
  733: 	    } else {
  734: 		$curlength+=length($element)*2;
  735: 	    }
  736: 	    $newurlp.='/'.$element;
  737: 	}
  738:     } else {
  739: 	$newurlp=$urlp;
  740:     }
  741:     return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
  742: }
  743: 
  744: sub recalcto_mm {
  745:     my $textwidth=shift;
  746:     my $LaTeXwidth;
  747:     if ($textwidth=~/(-?\d+\.?\d*)\s*cm/) {
  748: 	$LaTeXwidth = $1*10;
  749:     } elsif ($textwidth=~/(-?\d+\.?\d*)\s*mm/) {
  750: 	$LaTeXwidth = $1;
  751:     } elsif ($textwidth=~/(-?\d+\.?\d*)\s*in/) {
  752: 	$LaTeXwidth = $1*25.4;
  753:     }
  754:     $LaTeXwidth.=' mm';
  755:     return $LaTeXwidth;
  756: }
  757: 
  758: sub get_textwidth {
  759:     my ($helper,$LaTeXwidth)=@_;
  760:     my $textwidth=$LaTeXwidth;
  761:     if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
  762: 	$helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
  763: 	$textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
  764: 				$helper->{'VARS'}->{'pagesize.widthunit'});
  765:     }
  766:     return $textwidth;
  767: }
  768: 
  769: 
  770: sub unsupported {
  771:     my ($currentURL,$mode)=@_;
  772:     if ($mode ne '') {$mode='\\'.$mode}
  773:     my $result.= &print_latex_header($mode);
  774:     if ($currentURL=~/\/ext\//) {
  775: 	$result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
  776:     } else {
  777: 	$result.=$currentURL;
  778:     }
  779:     $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
  780:     return $result;
  781: }
  782: 
  783: 
  784: #
  785: #   Retrieve the hash of page breaks.
  786: #
  787: #  Inputs:
  788: #    helper   - reference to helper object.
  789: #  Outputs
  790: #    A reference to a page break hash.
  791: #
  792: #
  793: 
  794: sub get_page_breaks  {
  795:     my ($helper) = @_;
  796:     my %page_breaks;
  797:     
  798:     foreach my $break (split /\|\|\|/, $helper->{'VARS'}->{'FINISHPAGE'}) {
  799: 	$page_breaks{$break} = 1;
  800:     }
  801:     
  802:     return %page_breaks;
  803: }
  804: 
  805: sub output_data {
  806:     my ($r,$helper,$rparmhash) = @_;
  807:     my %parmhash = %$rparmhash;
  808:     my $html=&Apache::lonxml::xmlbegin();
  809:     my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
  810:     $r->print(<<ENDPART);
  811: $html
  812: <head>
  813: <script type="text/javascript" language="Javascript">
  814:     var editbrowser;
  815:     function openbrowser(formname,elementname,only,omit) {
  816:         var url = '/res/?';
  817:         if (editbrowser == null) {
  818:             url += 'launch=1&';
  819:         }
  820:         url += 'catalogmode=interactive&';
  821:         url += 'mode=parmset&';
  822:         url += 'form=' + formname + '&';
  823:         if (only != null) {
  824:             url += 'only=' + only + '&';
  825:         } 
  826:         if (omit != null) {
  827:             url += 'omit=' + omit + '&';
  828:         }
  829:         url += 'element=' + elementname + '';
  830:         var title = 'Browser';
  831:         var options = 'scrollbars=1,resizable=1,menubar=0';
  832:         options += ',width=700,height=600';
  833:         editbrowser = open(url,title,options,'1');
  834:         editbrowser.focus();
  835:     }
  836: </script>
  837: <title>LON-CAPA output for printing</title>
  838: </head>
  839: $bodytag
  840: Please stand by while processing your print request, this may take some time ...
  841: ENDPART
  842: 
  843: 
  844:     # fetch the pagebreaks and store them in the course environment
  845:     # The page breaks will be pulled into the hash %page_breaks which is
  846:     # indexed by symb and contains 1's for each break.
  847: 
  848:     $ENV{'form.pagebreaks'} = $helper->{'VARS'}->{'FINISHPAGE'};
  849:     &Apache::loncommon::store_course_settings('print',
  850: 					      {'pagebreaks' => 'scalar'});
  851: 
  852:     my %page_breaks  = &get_page_breaks($helper);
  853: 
  854:     my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
  855:     my ($result,$selectionmade) = ('','');
  856:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
  857:     my @temporary_array=split /\|/,$format_from_helper;
  858:     my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
  859:     if ($laystyle eq 'L') {
  860: 	$laystyle='album';
  861:     } else {
  862: 	$laystyle='book';
  863:     }
  864:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
  865:     my $assignment =  $ENV{'form.assignment'};
  866:     my $LaTeXwidth=&recalcto_mm($textwidth); 
  867:     my @print_array=();
  868:     my @student_names=();
  869: 
  870:     #  Common settings for the %form has:
  871:     # In some cases these settings get overriddent by specific cases, but the
  872:     # settings are common enough to make it worthwhile factoring them out
  873:     # here.
  874:     #
  875:     my %form;
  876:     $form{'grade_target'} = 'tex';
  877:     $form{'textwidth'}    = &get_textwidth($helper, $LaTeXwidth);
  878:     
  879:     if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
  880:       #-- single document - problem, page, html, xml, ...
  881: 	my ($currentURL,$cleanURL);
  882: 	if ($helper->{'VARS'}->{'construction'} ne '1') {
  883:             #prints published resource
  884: 	    $currentURL=$helper->{'VARS'}->{'postdata'};
  885: 	    $cleanURL=&Apache::lonenc::check_decrypt($currentURL);
  886: 	} else {
  887:             #prints resource from the construction space
  888: 	    $currentURL='/'.$helper->{'VARS'}->{'filename'};
  889: 	    if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
  890: 	    $cleanURL=$currentURL;
  891: 	}
  892: 	$selectionmade = 1;
  893: 	if ($cleanURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
  894: 	    my $rndseed=time;
  895: 	    my $texversion='';
  896: 	    if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
  897: 		my %moreenv;
  898: 		$moreenv{'request.filename'}=$cleanURL;
  899: 		if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
  900: 		    $moreenv{'construct.style'}=$helper->{'VARS'}->{'style_file'};
  901: 		    my $dom = $ENV{'user.domain'};
  902: 		    my $user = $ENV{'user.name'};
  903: 		    my $put_result = &Apache::lonnet::put('environment',{'construct.style'=>$helper->{'VARS'}->{'style_file'}},$dom,$user);
  904: 		}
  905:                 if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
  906: 		$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  907: 		$form{'suppress_tries'}=$parmhash{'suppress_tries'};
  908: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  909: 		$form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
  910: 		if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
  911: 		if ($helper->{'VARS'}->{'curseed'}) {
  912: 		    $rndseed=$helper->{'VARS'}->{'curseed'};
  913: 		}
  914: 		$form{'rndseed'}=$rndseed;
  915: 		&Apache::lonnet::appenv(%moreenv);
  916: 		&Apache::lonnet::delenv('form.counter');
  917: 		&Apache::lonxml::init_counter();
  918: 		$texversion.=&Apache::lonnet::ssi($currentURL,%form);
  919: 		&Apache::lonnet::delenv('form.counter');
  920: 		&Apache::lonnet::delenv('request.filename');
  921: 	    }
  922: 	    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
  923: 	       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
  924: 		$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  925: 		$form{'grade_target'}='answer';
  926: 		$form{'answer_output_mode'}='tex';
  927: 		$form{'rndseed'}=$rndseed;
  928: 		my $answer=&Apache::lonnet::ssi($currentURL,%form);
  929: 		if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
  930: 		    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
  931: 		} else {
  932: 		    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
  933: 		    if ($helper->{'VARS'}->{'construction'} ne '1') {
  934: 			$texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
  935: 			$texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
  936: 		    } else {
  937: 			$texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
  938: 			my $URLpath=$cleanURL;
  939: 			$URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
  940: 			$texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
  941: 		    }
  942: 		    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
  943: 		}
  944: 	    }
  945: 	    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
  946: 		$texversion=&IndexCreation($texversion,$currentURL);
  947: 	    }
  948: 	    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
  949: 		$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
  950: 
  951: 	    }
  952: 	    $result .= $texversion;
  953: 	    if ($currentURL=~m/\.page\s*$/) {
  954: 		($result,$number_of_columns) = &page_cleanup($result);
  955: 	    }
  956:         } elsif ($currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
  957:             #printing content of sequence from the construction space	
  958: 	    my $flag_latex_header_remove = 'NO'; 
  959: 	    my $rndseed=time;
  960: 	    if ($helper->{'VARS'}->{'curseed'}) {
  961: 		$rndseed=$helper->{'VARS'}->{'curseed'};
  962: 	    }
  963: 	    $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
  964: 	    my $errtext=&Apache::lonratedt::mapread($currentURL);
  965: 	    for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
  966: 		$Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
  967: 		my $urlp=$2;
  968: 		if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
  969: 		    my $texversion='';
  970: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
  971: 			$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  972: 			$form{'suppress_tries'}=$parmhash{'suppress_tries'};
  973: 			$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  974: 			$form{'rndseed'}=$rndseed;
  975: 			$texversion=&Apache::lonnet::ssi($urlp,%form);
  976: 		    }
  977: 		    if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
  978: 		       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) && 
  979: 		       ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
  980: 			$form{'grade_target'}='answer';
  981: 			$form{'answer_output_mode'}='tex';
  982: 			$form{'rndseed'}=$rndseed;
  983: 			$form{'problem_split'}=$parmhash{'problem_stream_switch'};
  984:                         if ($urlp=~/\/res\//) {$ENV{'request.state'}='published';}
  985: 			my $answer=&Apache::lonnet::ssi($urlp,%form);
  986: 			if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
  987: 			    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
  988: 			} else {
  989: 			    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
  990: 			    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
  991: 			    $texversion.=&path_to_problem ($currentURL,$LaTeXwidth);
  992: 			    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
  993: 			}
  994: 		    }
  995: 		    if ($flag_latex_header_remove ne 'NO') {
  996: 			$texversion = &latex_header_footer_remove($texversion);
  997: 		    } else {
  998: 			$texversion =~ s/\\end{document}//;
  999: 		    }
 1000: 		    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
 1001: 			$texversion=&IndexCreation($texversion,$urlp);
 1002: 		    }
 1003: 		    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
 1004: 			$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
 1005: 		    }
 1006: 		    $result.=$texversion;
 1007: 		    $flag_latex_header_remove = 'YES';
 1008: 		} elsif ($urlp=~/\.(sequence|page)$/) {
 1009: 		    $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
 1010: 		}  
 1011: 	    }
 1012: 	    if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
 1013: 	    $result .= '\end{document}';   
 1014: 	} elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
 1015: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1016: 		if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
 1017: 		my $texversion=&Apache::lonnet::ssi($currentURL,%form);
 1018: 		$result .= $texversion;
 1019: 	} else {
 1020: 	    $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'});
 1021: 	}
 1022:     } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems')       or
 1023:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
 1024:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')       or
 1025: 	     ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources')      or # BUGBUG
 1026: 	     ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) { 
 1027:         #-- produce an output string
 1028: 	if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
 1029: 	    $selectionmade = 2;
 1030: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
 1031: 	    $selectionmade = 3;
 1032: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
 1033: 	    $selectionmade = 4;
 1034: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') {  #BUGBUG
 1035: 	    $selectionmade = 4;
 1036: 	} elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
 1037: 	    $selectionmade = 7;
 1038: 	}
 1039: 	$form{'problem_split'}=$parmhash{'problem_stream_switch'};
 1040: 	$form{'suppress_tries'}=$parmhash{'suppress_tries'};
 1041: 	$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1042: 	$form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
 1043: 	if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
 1044: 	my $flag_latex_header_remove = 'NO';
 1045: 	my $flag_page_in_sequence = 'NO';
 1046: 	my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1047: 	my $prevassignment='';
 1048: 	&Apache::lonnet::delenv('form.counter');
 1049: 	&Apache::lonxml::init_counter();
 1050: 	for (my $i=0;$i<=$#master_seq;$i++) {
 1051: 
 1052: 	    # Note due to document structure, not allowed to put \newpage
 1053: 	    # prior to the first resource
 1054: 
 1055: 	    if (defined $page_breaks{$master_seq[$i]}) {
 1056: 		if($i != 0) {
 1057: 		    $result.="\\newpage\n";
 1058: 		}
 1059: 	    }
 1060: 	    my (undef,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
 1061: 	    $urlp=&Apache::lonnet::clutter($urlp);
 1062: 	    $form{'symb'}=$master_seq[$i];
 1063: 	    my ($sequence)=&Apache::lonnet::decode_symb($master_seq[$i]);
 1064: 	    my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #tittle of the assignment which contains this problem
 1065: 	    if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
 1066: 	    if ($i==0) {$prevassignment=$assignment;}
 1067: 	    my $texversion='';
 1068: 	    if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
 1069: 		$texversion.=&Apache::lonnet::ssi($urlp,%form);
 1070: 		if ($urlp=~/\.page$/) {
 1071: 		    ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
 1072: 		    if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
 1073: 		    $texversion =~ s/\\end{document}\d*/\\end{document}/;
 1074: 		    $flag_page_in_sequence = 'YES';
 1075: 		} 
 1076: 		my $lonidsdir=$r->dir_config('lonIDsDir');
 1077: 		my $envfile=$ENV{'user.environment'};
 1078: 		$envfile=~/\/([^\/]+)\.id$/;
 1079: 		$envfile=$1;
 1080: 		&Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1081: 		my $current_counter=$ENV{'form.counter'};
 1082: 		if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1083: 		   ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1084: 		    $form{'grade_target'}='answer';
 1085: 		    $form{'answer_output_mode'}='tex';
 1086: 		    my $answer=&Apache::lonnet::ssi($urlp,%form);
 1087: 		    &Apache::lonnet::appenv(('form.counter' => $current_counter));
 1088: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1089: 			$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1090: 		    } else {
 1091: 			if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
 1092: 			    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1093: 			    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($urlp).'}\vskip 0 mm ';
 1094: 			    $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
 1095: 			    $texversion.='\vskip 1 mm '.$answer;
 1096: 			} else {
 1097: 			    $texversion='';
 1098: 			}
 1099: 		    }
 1100: 		}
 1101: 		if ($flag_latex_header_remove ne 'NO') {
 1102: 		    $texversion = &latex_header_footer_remove($texversion);
 1103: 		} else {
 1104: 		    $texversion =~ s/\\end{document}//;
 1105: 		}
 1106: 		if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
 1107: 		    $texversion=&IndexCreation($texversion,$urlp);
 1108: 		}
 1109: 		if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
 1110: 		    my $name = &get_name();
 1111: 		    my $courseidinfo = &get_course();
 1112: 		    if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
 1113: 		    $prevassignment=$assignment;
 1114: 		    $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
 1115: 		}
 1116: 		$result .= $texversion;
 1117: 		$flag_latex_header_remove = 'YES';   
 1118: 	    } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
 1119: 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1120: 		if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
 1121: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1122: 		if ($flag_latex_header_remove ne 'NO') {
 1123: 		    $texversion = &latex_header_footer_remove($texversion);
 1124: 		} else {
 1125: 		    $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
 1126: 		}
 1127: 		$result .= $texversion;
 1128: 		$flag_latex_header_remove = 'YES'; 
 1129: 	    } else {
 1130: 		$texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'});
 1131: 		if ($flag_latex_header_remove ne 'NO') {
 1132: 		    $texversion = &latex_header_footer_remove($texversion);
 1133: 		} else {
 1134: 		    $texversion =~ s/\\end{document}//;
 1135: 		}
 1136: 		$result .= $texversion;
 1137: 		$flag_latex_header_remove = 'YES';   
 1138: 	    }	    
 1139: 	    if (&Apache::loncommon::connection_aborted($r)) { last; }
 1140: 	}
 1141: 	&Apache::lonnet::delenv('form.counter');
 1142: 	if ($flag_page_in_sequence eq 'YES') {
 1143: 	    $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
 1144: 	}	
 1145: 	$result .= '\end{document}';
 1146:      } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
 1147: 	      ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
 1148: 
 1149: 
 1150:      #-- prints assignments for whole class or for selected students  
 1151: 	 my $type;
 1152: 	 if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
 1153: 	     $selectionmade=5;
 1154: 	     $type='problems';
 1155: 	 } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
 1156: 	     $selectionmade=8;
 1157: 	     $type='resources';
 1158: 	 }
 1159: 	 my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
 1160: 	 #   The normal sort order is by section then by students within the
 1161: 	 #   section. If the helper var student_sort is 1, then the user has elected
 1162: 	 #   to override this and output the students by name.
 1163: 	 #    Each element of the students array is of the form:
 1164: 	 #       username:domain:section:last, first:status
 1165: 	 #    
 1166: 	 #   
 1167: 	 if ($helper->{'VARS'}->{'student_sort'}    eq 1) {
 1168: 	     @students = sort compare_names  @students;
 1169: 	 }
 1170:          if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
 1171: 	     $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
 1172: 	     $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
 1173: 	 }
 1174: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1175: 
 1176: 	 #loop over students
 1177: 	 my $flag_latex_header_remove = 'NO'; 
 1178: 	 my %moreenv;
 1179:          $moreenv{'instructor_comments'}='hide';
 1180: 	 $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
 1181: 	 $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
 1182: 	 $moreenv{'problem_split'}    = $parmhash{'problem_stream_switch'};
 1183: 	 if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$moreenv{'problem_split'}='yes';}
 1184: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
 1185: 	 my $student_counter=-1;
 1186: 	 foreach my $person (@students) {
 1187: 
 1188:              my $duefile="/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
 1189: 	     if (-e $duefile) {
 1190: 		 my $temp_file = Apache::File->new('>>'.$duefile);
 1191: 		 print $temp_file "1969\n";
 1192: 	     }
 1193: 	     $student_counter++;
 1194: 	     my $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
 1195: 	     my ($output,$fullname)=&print_resources($r,$helper,
 1196: 						     $person,$type,
 1197: 						     \%moreenv,\@master_seq,
 1198: 						     $flag_latex_header_remove,
 1199: 						     $LaTeXwidth);
 1200: 	     $print_array[$i].=$output;
 1201: 	     $student_names[$i].=$person.':'.$fullname.'_END_';
 1202: 	     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
 1203: 	     $flag_latex_header_remove = 'YES';
 1204: 	     if (&Apache::loncommon::connection_aborted($r)) { last; }
 1205: 	 }
 1206: 	 &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 1207: 	 $result .= $print_array[0].'  \end{document}';
 1208:      } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon')     ||
 1209: 	      ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon')  ) { 
 1210: 	 my $cdom =$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
 1211: 	 my $cnum =$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
 1212: 	 my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
 1213: 	 my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
 1214: 	 my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
 1215: 	 my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
 1216: 	 $moreenv{'problem_split'}    = $parmhash{'problem_stream_switch'};
 1217: 	 my $seed=time+($$<<16)+($$);
 1218: 	 my @allcodes;
 1219: 	 if ($old_name) {
 1220: 	     my %result=&Apache::lonnet::get('CODEs',[$old_name],$cdom,$cnum);
 1221: 	     @allcodes=split(',',$result{$old_name});
 1222: 	     $num_todo=scalar(@allcodes);
 1223: 	 } else {
 1224: 	     my %allcodes;
 1225: 	     srand($seed);
 1226: 	     for (my $i=0;$i<$num_todo;$i++) {
 1227: 		 $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,'6');
 1228: 	     }
 1229: 	     if ($code_name) {
 1230: 		 &Apache::lonnet::put('CODEs',
 1231: 				      {$code_name =>join(',',keys(%allcodes))},
 1232: 				      $cdom,$cnum);
 1233: 	     }
 1234: 	     @allcodes=keys(%allcodes);
 1235: 	 }
 1236: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1237: 	 my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
 1238: 	 my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
 1239: 	 if ($number_per_page eq '0' || $number_per_page eq 'all') {
 1240: 	     $number_per_page=$num_todo;
 1241: 	 }
 1242: 	 my $flag_latex_header_remove = 'NO'; 
 1243: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
 1244: 	 my $count=0;
 1245: 	 foreach my $code (sort(@allcodes)) {
 1246: 	     my $file_num=int($count/$number_per_page);
 1247: 	     $moreenv{'CODE'}=&num_to_letters($code);
 1248: 	     my ($output,$fullname)=
 1249: 		 &print_resources($r,$helper,'anonymous',$type,\%moreenv,
 1250: 				  \@master_seq,$flag_latex_header_remove,
 1251: 				  $LaTeXwidth);
 1252: 	     $print_array[$file_num].=$output;
 1253: 	     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 1254: 				       &mt('last assignment').' '.$fullname);
 1255: 	     $flag_latex_header_remove = 'YES';
 1256: 	     $count++;
 1257: 	     if (&Apache::loncommon::connection_aborted($r)) { last; }
 1258: 	 }
 1259: 	 &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 1260: 	 $result .= $print_array[0].'  \end{document}';
 1261:      } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
 1262:     #prints selected problems from the subdirectory 
 1263: 	$selectionmade = 6;
 1264:         my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
 1265: 	@list_of_files=sort @list_of_files;
 1266: 	my $flag_latex_header_remove = 'NO'; 
 1267: 	my $rndseed=time;
 1268: 	if ($helper->{'VARS'}->{'curseed'}) {
 1269: 	    $rndseed=$helper->{'VARS'}->{'curseed'};
 1270: 	}
 1271: 	for (my $i=0;$i<=$#list_of_files;$i++) {
 1272: 	    my $urlp = $list_of_files[$i];
 1273: 	    $urlp=~s|//|/|;
 1274: 	    if ($urlp=~/\//) {
 1275: 		$form{'problem_split'}=$parmhash{'problem_stream_switch'};
 1276: 		$form{'rndseed'}=$rndseed;
 1277: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
 1278: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
 1279: 		} else {
 1280: 		    $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
 1281: 		}
 1282: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1283: 		if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1284: 		   ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1285: 		    $form{'grade_target'}='answer';
 1286: 		    $form{'answer_output_mode'}='tex';
 1287: 		    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1288: 		    $form{'rndseed'}=$rndseed;
 1289: 		    my $answer=&Apache::lonnet::ssi($urlp,%form);
 1290: 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1291: 			$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1292: 		    } else {
 1293: 			$texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1294: 			if ($helper->{'VARS'}->{'construction'} ne '1') {
 1295: 			    $texversion.='\vskip 0 mm \noindent ';
 1296: 			    $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
 1297: 			} else {
 1298: 			    $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
 1299: 			    my $URLpath=$urlp;
 1300: 			    $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
 1301: 			    $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
 1302: 			}
 1303: 			$texversion.='\vskip 1 mm '.$answer.'\end{document}';
 1304: 		    }
 1305: 		}
 1306:                 #this chunck is responsible for printing the path to problem
 1307: 		my $newurlp=$urlp;
 1308: 		if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
 1309: 		$newurlp=&path_to_problem($newurlp,$LaTeXwidth);
 1310: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
 1311: 		if ($flag_latex_header_remove ne 'NO') {
 1312: 		    $texversion = &latex_header_footer_remove($texversion);
 1313: 		} else {
 1314: 		    $texversion =~ s/\\end{document}//;
 1315: 		}
 1316: 		if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
 1317: 		    $texversion=&IndexCreation($texversion,$urlp);
 1318: 		}
 1319: 		if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
 1320: 		    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
 1321: 		    
 1322: 		}
 1323: 		$result .= $texversion;
 1324: 	    }
 1325: 	    $flag_latex_header_remove = 'YES';  
 1326: 	}
 1327: 	if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
 1328: 	$result .= '\end{document}';      	
 1329:     }
 1330: #-------------------------------------------------------- corrections for the different page formats
 1331:     $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
 1332:     $result = &latex_corrections($number_of_columns,$result,$selectionmade);
 1333:     for (my $i=1;$i<=$#print_array;$i++) {$print_array[$i] = &latex_corrections($number_of_columns,$print_array[$i],$selectionmade);}
 1334:     #changes page's parameters for the one column output 
 1335:     if ($numberofcolumns == 1) {
 1336: 	$result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
 1337: 	$result =~ s/\\textheight\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
 1338: 	$result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
 1339: 	$result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
 1340:     }
 1341: #-- writing .tex file in prtspool 
 1342:     my $temp_file;
 1343:     my $identifier = &Apache::loncommon::get_cgi_id();
 1344:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".$identifier.".tex";
 1345:     if (!($#print_array>0)) { 
 1346: 	unless ($temp_file = Apache::File->new('>'.$filename)) {
 1347: 	    $r->log_error("Couldn't open $filename for output $!");
 1348: 	    return SERVER_ERROR; 
 1349: 	}
 1350: 	print $temp_file $result;
 1351: 	my $begin=index($result,'\begin{document}',0);
 1352: 	my $inc=substr($result,0,$begin+16);
 1353:     } else {
 1354: 	my $begin=index($result,'\begin{document}',0);
 1355: 	my $inc=substr($result,0,$begin+16);
 1356:         for (my $i=0;$i<=$#print_array;$i++) {
 1357: 	    if ($i==0) {
 1358: 		$print_array[$i]=$result;
 1359: 	    } else {
 1360: 		my $anobegin=index($print_array[$i],'\setcounter{page}',0);
 1361: 		substr($print_array[$i],0,$anobegin)='';
 1362: 		$print_array[$i]=$inc.$print_array[$i].'\end{document}';
 1363: 	    }
 1364: 	    my $temp_file;
 1365: 	    my $newfilename=$filename;
 1366: 	    my $num=$i+1;
 1367: 	    $newfilename =~s/\.tex$/_$num\.tex/; 
 1368: 	    unless ($temp_file = Apache::File->new('>'.$newfilename)) {
 1369: 		$r->log_error("Couldn't open $newfilename for output $!");
 1370: 		return SERVER_ERROR; 
 1371: 	    }
 1372: 	    print $temp_file $print_array[$i];
 1373: 	}
 1374:     }
 1375:     my $student_names='';
 1376:     if ($#print_array>0) {
 1377: 	for (my $i=0;$i<=$#print_array;$i++) {
 1378: 	    $student_names.=$student_names[$i].'_ENDPERSON_';
 1379: 	}
 1380:     } else {
 1381: 	if ($#student_names>-1) {
 1382: 	    $student_names=$student_names[0].'_ENDPERSON_';
 1383: 	} else {
 1384: 	    my $fullname = &get_name($ENV{'user.name'},$ENV{'user.domain'});
 1385: 	    $student_names=join(':',$ENV{'user.name'},$ENV{'user.domain'},
 1386: 				$ENV{'request.course.sec'},$fullname).
 1387: 				    '_ENDPERSON_'.'_END_';
 1388: 	}
 1389:     }
 1390: 
 1391:     my $URLback=''; #link to original document
 1392:     if ($helper->{'VARS'}->{'construction'} ne '1') {
 1393: 	#prints published resource
 1394: 	$URLback=&Apache::lonnet::escape('/adm/flip?postdata=return:');
 1395:     } else {
 1396: 	#prints resource from the construction space
 1397: 	$URLback='/'.$helper->{'VARS'}->{'filename'};
 1398: 	if ($URLback=~/([^?]+)/) {
 1399: 	    $URLback=$1;
 1400: 	    $URLback=~s|^/~|/priv/|;
 1401: 	}
 1402:     }
 1403: 
 1404:     &Apache::lonnet::appenv('cgi.'.$identifier.'.file'   => $filename,
 1405:                             'cgi.'.$identifier.'.layout'  => $laystyle,
 1406:                             'cgi.'.$identifier.'.numcol'  => $numberofcolumns,
 1407: 			    'cgi.'.$identifier.'.paper'  => $papersize,
 1408:                             'cgi.'.$identifier.'.selection' => $selectionmade,
 1409: 			    'cgi.'.$identifier.'tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
 1410: 			    'cgi.'.$identifier.'tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
 1411: 			    'cgi.'.$identifier.'role' => $ENV{'request.role.adv'},
 1412:                             'cgi.'.$identifier.'numberoffiles' => $#print_array,
 1413:                             'cgi.'.$identifier.'studentnames' => $student_names,
 1414:                             'cgi.'.$identifier.'backref' => $URLback,);
 1415:  
 1416: $r->print(<<FINALEND);
 1417: <br />
 1418: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
 1419: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
 1420: </body>
 1421: </html>
 1422: FINALEND
 1423: }
 1424: 
 1425: sub num_to_letters {
 1426:     my ($num) = @_;
 1427:     my @nums= split('',$num);
 1428:     my @num_to_let=('A'..'Z');
 1429:     my $word;
 1430:     foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
 1431:     return $word;
 1432: }
 1433: 
 1434: sub get_CODE {
 1435:     my ($all_codes,$num,$seed,$size)=@_;
 1436:     my $max='1'.'0'x$size;
 1437:     my $newcode;
 1438:     while(1) {
 1439: 	$newcode=sprintf("%06d",int(rand($max)));
 1440: 	if (!exists($$all_codes{$newcode})) {
 1441: 	    $$all_codes{$newcode}=1;
 1442: 	    return &num_to_letters($newcode);
 1443: 	}
 1444:     }
 1445: }
 1446: 
 1447: sub print_resources {
 1448:     my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
 1449: 	$LaTeXwidth)=@_;
 1450:     my $current_output = ''; 
 1451:     my ($username,$userdomain,$usersection) = split /:/,$person;
 1452:     my $fullname = &get_name($username,$userdomain);
 1453:     my $namepostfix;
 1454:     if ($person =~ 'anon') {
 1455: 	$namepostfix="\\\\Name: ";
 1456: 	$fullname = "CODE - ".$moreenv->{'CODE'};
 1457:     }
 1458:     my $i           = 0;
 1459:     #goes through all resources, checks if they are available for 
 1460:     #current student, and produces output   
 1461:     &Apache::lonnet::delenv('form.counter');
 1462:     &Apache::lonxml::init_counter();
 1463: 
 1464:     my %page_breaks  = &get_page_breaks($helper);
 1465: 
 1466:     foreach my $curresline (@{$master_seq})  {
 1467: 	if (defined $page_breaks{$curresline}) {
 1468: 	    if($i != 0) {
 1469: 		$current_output.= "\\newpage\n";
 1470: 	    }
 1471: 	}
 1472: 	$i++;
 1473: 	if ( !($type eq 'problems' && 
 1474: 	       ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
 1475: 	    my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
 1476: 	    if (&Apache::lonnet::allowed('bre',$res_url)) {
 1477: 		if ($res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
 1478: 		    my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$ENV{'request.course.id'},'tex',$moreenv);
 1479: 		    my $lonidsdir=$r->dir_config('lonIDsDir');
 1480: 		    my $envfile=$ENV{'user.environment'};
 1481: 		    $envfile=~/\/([^\/]+)\.id$/;
 1482: 		    $envfile=$1;
 1483: 		    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1484: 		    my $current_counter=$ENV{'form.counter'};
 1485: 		    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
 1486: 		       ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 1487: 			$moreenv->{'answer_output_mode'}='tex';
 1488: 			$moreenv->{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 1489: 			my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$ENV{'request.course.id'},%{$moreenv});
 1490: 			&Apache::lonnet::appenv(('form.counter' => $current_counter));
 1491: 			if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1492: 			    $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
 1493: 			} else {
 1494: 			    $rendered=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
 1495: 			    $rendered.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
 1496: 			    $rendered.=&path_to_problem ($curresline,$LaTeXwidth);
 1497: 			    $rendered.='\vskip 1 mm '.$ansrendered;
 1498: 			}
 1499: 		    }
 1500: 		    if ($remove_latex_header eq 'YES') {
 1501: 			$rendered = &latex_header_footer_remove($rendered);
 1502: 		    } else {
 1503: 			$rendered =~ s/\\end{document}//;
 1504: 		    }
 1505: 		    $current_output .= $rendered;		    
 1506: 		} elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
 1507: 		    my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$ENV{'request.course.id'},'tex',$moreenv);
 1508: 		    my $lonidsdir=$r->dir_config('lonIDsDir');
 1509: 		    my $envfile=$ENV{'user.environment'};
 1510: 		    $envfile=~/\/([^\/]+)\.id$/;
 1511: 		    $envfile=$1;
 1512: 		    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
 1513: 		    my $current_counter=$ENV{'form.counter'};
 1514: 		    if ($remove_latex_header eq 'YES') {
 1515: 			$rendered = &latex_header_footer_remove($rendered);
 1516: 		    } else {
 1517: 			$rendered =~ s/\\end{document}//;
 1518: 		    }
 1519: 		    $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
 1520: 		} else {
 1521: 		    my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'});
 1522: 		    if ($remove_latex_header ne 'NO') {
 1523: 			$rendered = &latex_header_footer_remove($rendered);
 1524: 		    } else {
 1525: 			$rendered =~ s/\\end{document}//;
 1526: 		    }
 1527: 		    $current_output .= $rendered;
 1528: 		}
 1529: 	    }
 1530: 	    $remove_latex_header = 'YES';
 1531: 	}
 1532: 	if (&Apache::loncommon::connection_aborted($r)) { last; }
 1533:     }
 1534:     my $courseidinfo = &get_course();
 1535:     if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
 1536:     if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
 1537:     my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
 1538:     if ($current_output=~/\\documentclass/) {
 1539: 	$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
 1540:     } else {
 1541: 	my $blankpages = '';
 1542: 	for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blankpages.='\clearpage\strut\clearpage';}
 1543: 	$current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$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;
 1544:     }
 1545:     return ($current_output,$fullname);
 1546: 
 1547: }
 1548: 
 1549: sub handler {
 1550: 
 1551:     my $r = shift;
 1552:     my $helper;
 1553: 
 1554: #    my $loaderror=&Apache::lonnet::overloaderror($r);
 1555: #    if ($loaderror) { return $loaderror; }
 1556: #    $loaderror=
 1557: #       &Apache::lonnet::overloaderror($r,
 1558: #         $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
 1559: #    if ($loaderror) { return $loaderror; }
 1560: 
 1561:     my $result = printHelper($r);
 1562:     if (!ref($result)) {
 1563: 	return $result;
 1564:     }
 1565:     $helper = $result;
 1566:    
 1567: #	my $key; 
 1568: #	foreach $key (keys %{$helper->{'VARS'}}) {
 1569: #	    $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
 1570: #	}
 1571: #	foreach $key (keys %ENV) {
 1572: #	    $r->print(' '.$key.'->'.$ENV{$key}.'<-<br />');
 1573: #	}
 1574: #	return OK;
 1575: 
 1576:     my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
 1577:  
 1578: #	my $key; 
 1579: #	foreach $key (keys %parmhash) {
 1580: #	    $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
 1581: #	}
 1582: #
 1583: 
 1584: 
 1585: 			 
 1586:     &output_data($r,$helper,\%parmhash);
 1587:     return OK;
 1588: } 
 1589: 
 1590: use Apache::lonhelper;
 1591: 
 1592: sub addMessage {
 1593:     my $text = shift;
 1594:     my $paramHash = Apache::lonhelper::getParamHash();
 1595:     $paramHash->{MESSAGE_TEXT} = $text;
 1596:     Apache::lonhelper::message->new();
 1597: }
 1598: 
 1599: use Data::Dumper;
 1600: 
 1601: sub printHelper {
 1602:     my $r = shift;
 1603: 
 1604:     if ($r->header_only) {
 1605:         if ($ENV{'browser.mathml'}) {
 1606:             &Apache::loncommon::content_type($r,'text/xml');
 1607:         } else {
 1608:             &Apache::loncommon::content_type($r,'text/html');
 1609:         }
 1610:         $r->send_http_header;
 1611:         return OK;
 1612:     }
 1613: 
 1614:     # Send header, nocache
 1615:     if ($ENV{'browser.mathml'}) {
 1616:         &Apache::loncommon::content_type($r,'text/xml');
 1617:     } else {
 1618:         &Apache::loncommon::content_type($r,'text/html');
 1619:     }
 1620:     &Apache::loncommon::no_cache($r);
 1621:     $r->send_http_header;
 1622:     $r->rflush();
 1623: 
 1624:     # Unfortunately, this helper is so complicated we have to
 1625:     # write it by hand
 1626: 
 1627:     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
 1628:     
 1629:     my $helper = Apache::lonhelper::helper->new("Printing Helper");
 1630:     $helper->declareVar('symb');
 1631:     $helper->declareVar('postdata');    
 1632:     $helper->declareVar('curseed'); 
 1633:     $helper->declareVar('probstatus');   
 1634:     $helper->declareVar('filename');
 1635:     $helper->declareVar('construction');
 1636:     $helper->declareVar('assignment');
 1637:     $helper->declareVar('style_file');
 1638:     $helper->declareVar('student_sort');
 1639:     $helper->declareVar('FINISHPAGE');
 1640: 
 1641:     #  The page breaks can get loaded initially from the course environment:
 1642:     
 1643:     &Apache::loncommon::restore_course_settings('print',
 1644: 						{'pagebreaks' => 'scalar'});
 1645: 
 1646:     $helper->{VARS}->{FINISHPAGE} = $ENV{'form.pagebreaks'};
 1647:     
 1648:     # This will persistently load in the data we want from the
 1649:     # very first screen.
 1650:     # Detect whether we're coming from construction space
 1651:     if ($ENV{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
 1652:         $helper->{VARS}->{'filename'} = "~$1/$2";
 1653:         $helper->{VARS}->{'construction'} = 1;
 1654:     } else {
 1655:         if ($ENV{'form.postdata'}) {
 1656:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1657:         }
 1658:         if ($ENV{'form.symb'}) {
 1659:             $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1660:         }
 1661:         if ($ENV{'form.url'}) {
 1662:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1663:         }
 1664:     }
 1665: 
 1666:     if ($ENV{'form.symb'}) {
 1667:         $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1668:     }
 1669:     if ($ENV{'form.url'}) {
 1670:         $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1671: 
 1672:     }
 1673:     $helper->{VARS}->{'symb'}=
 1674: 	&Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
 1675:     my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
 1676:     if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
 1677: 
 1678:     
 1679:     # Extract map
 1680:     my $symb = $helper->{VARS}->{'symb'};
 1681:     my ($map, $id, $url);
 1682:     my $subdir;
 1683: 
 1684:     # Get the resource name from construction space
 1685:     if ($helper->{VARS}->{'construction'}) {
 1686:         $resourceTitle = substr($helper->{VARS}->{'filename'}, 
 1687:                                 rindex($helper->{VARS}->{'filename'}, '/')+1);
 1688:         $subdir = substr($helper->{VARS}->{'filename'},
 1689:                          0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
 1690:     } else {
 1691:         ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
 1692:         $helper->{VARS}->{'postdata'} = 
 1693: 	    &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
 1694: 
 1695:         if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
 1696:             my $postdata = $helper->{VARS}->{'postdata'};
 1697:             $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
 1698:         }
 1699:         $subdir = &Apache::lonnet::filelocation("", $url);
 1700:     }
 1701:     if (!$helper->{VARS}->{'curseed'} && $ENV{'form.curseed'}) {
 1702: 	$helper->{VARS}->{'curseed'}=$ENV{'form.curseed'};
 1703:     }
 1704:     if (!$helper->{VARS}->{'probstatus'} && $ENV{'form.problemtype'}) {
 1705: 	$helper->{VARS}->{'probstatus'}=$ENV{'form.problemtype'};
 1706:     }
 1707: 
 1708:     my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
 1709:     my $userPriviledged = ($ENV{'request.role'}=~m/^cc\./ or
 1710: 			   $ENV{'request.role'}=~m/^in\./ or
 1711: 			   $ENV{'request.role'}=~m/^ta\./);
 1712: 
 1713:     Apache::lonhelper::registerHelperTags();
 1714: 
 1715:     # "Delete everything after the last slash."
 1716:     $subdir =~ s|/[^/]+$||;
 1717:     if (not $helper->{VARS}->{'construction'}) {
 1718: 	$subdir=$Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$subdir;
 1719:     }
 1720:     # "Remove all duplicate slashes."
 1721:     $subdir =~ s|/+|/|g;
 1722: 
 1723:     # What can be printed is a very dynamic decision based on
 1724:     # lots of factors. So we need to dynamically build this list.
 1725:     # To prevent security leaks, states are only added to the wizard
 1726:     # if they can be reached, which ensures manipulating the form input
 1727:     # won't allow anyone to reach states they shouldn't have permission
 1728:     # to reach.
 1729: 
 1730:     # printChoices is tracking the kind of printing the user can
 1731:     # do, and will be used in a choices construction later.
 1732:     # In the meantime we will be adding states and elements to
 1733:     # the helper by hand.
 1734:     my $printChoices = [];
 1735:     my $paramHash;
 1736: 
 1737:     if ($resourceTitle) {
 1738:         push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('what you just saw on the screen').")", 'current_document', 'PAGESIZE'];
 1739:     }
 1740: 
 1741:     # Useful filter strings
 1742:     my $isProblem = '($res->is_problem()||$res->contains_problem) ';
 1743:     $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
 1744:     my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
 1745:     my $isNotMap = '!$res->is_sequence()';
 1746:     $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
 1747:     my $isMap = '$res->is_map()';
 1748:     my $symbFilter = '$res->shown_symb()';
 1749:     my $urlValue = '$res->link()';
 1750: 
 1751:     $helper->declareVar('SEQUENCE');
 1752: 
 1753:     # Useful for debugging: Dump the help vars
 1754:     #$r->print(Dumper($helper->{VARS}));
 1755:     #$r->print($map);
 1756: 
 1757:     # If we're in a sequence...
 1758:     if (($helper->{'VARS'}->{'construction'} ne '1') &&
 1759: 
 1760: 	$helper->{VARS}->{'postdata'} &&
 1761: 	$helper->{VARS}->{'assignment'}) {
 1762:         # Allow problems from sequence
 1763:         push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
 1764:         # Allow all resources from sequence
 1765:         push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
 1766: 
 1767:         my $helperFragment = <<HELPERFRAGMENT;
 1768:   <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
 1769:     <message>(mark them then click "next" button) <br /></message>
 1770:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 1771:               closeallpages="1">
 1772:       <nextstate>PAGESIZE</nextstate>
 1773:       <filterfunc>return $isProblem;</filterfunc>
 1774:       <mapurl>$map</mapurl>
 1775:       <valuefunc>return $symbFilter;</valuefunc>
 1776:       <option text='Newpage' variable='FINISHPAGE' />
 1777:       </resource>
 1778:     </state>
 1779: 
 1780:   <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
 1781:     <message>(mark them then click "next" button) <br /></message>
 1782:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 1783:               closeallpages="1">
 1784:       <nextstate>PAGESIZE</nextstate>
 1785:       <filterfunc>return $isNotMap;</filterfunc>
 1786:       <mapurl>$map</mapurl>
 1787:       <valuefunc>return $symbFilter;</valuefunc>
 1788:       <option text='Newpage' variable='FINISHPAGE' />
 1789:       </resource>
 1790:     </state>
 1791: HELPERFRAGMENT
 1792: 
 1793: 	&Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
 1794:     }
 1795: 
 1796:     # If the user is privileged, allow them to print all 
 1797:     # problems and resources  in the entier course, optionally for selected students
 1798:     if ($userPriviledged && 
 1799:         ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) { 
 1800: 
 1801:         push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
 1802: 	push @{$printChoices}, ['<b>Resources</b> from <b>entire course</b>', 'all_resources', 'ALL_RESOURCES'];
 1803:          &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
 1804:   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
 1805:     <message>(mark them then click "next" button) <br /></message>
 1806:     <resource variable="RESOURCES" toponly='0' multichoice="1"
 1807: 	suppressEmptySequences='0' addstatus="1" closeallpages="1">
 1808:       <nextstate>PAGESIZE</nextstate>
 1809:       <filterfunc>return $isProblemOrMap;</filterfunc>
 1810:       <choicefunc>return $isNotMap;</choicefunc>
 1811:       <valuefunc>return $symbFilter;</valuefunc>
 1812:       <option text='Newpage' variable='FINISHPAGE' />
 1813:     </resource>
 1814:   </state>
 1815:   <state name="ALL_RESOURCES" title="Select Resource(s) to print">
 1816:     <message>(Mark them then click "next" button) <br /> </message>
 1817:     <resource variable="RESOURCES" toponly='0' multichoice='1'
 1818:               suppressEmptySequences='0' addstatus='1' closeallpages='1'>
 1819:       <nextstate>PAGESIZE</nextstate>
 1820:       <filterfunc>return $isNotMap; </filterfunc>
 1821:       <valuefunc>return $symbFilter;</valuefunc>
 1822:       <option text='NewPage' variable='FINISHPAGE' />
 1823:     </resource>
 1824:   </state>
 1825: ALL_PROBLEMS
 1826: 
 1827: 	if ($helper->{VARS}->{'assignment'}) {
 1828: 	    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'];
 1829: 	    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'];
 1830: 	}
 1831: 	my $resource_selector=<<RESOURCE_SELECTOR;
 1832:    <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
 1833:     <resource variable="RESOURCES" multichoice="1" addstatus="1" 
 1834:               closeallpages="1">
 1835:       <filterfunc>return $isProblem;</filterfunc>
 1836:       <mapurl>$map</mapurl>
 1837:       <valuefunc>return $symbFilter;</valuefunc>
 1838:       <option text='New Page' variable='FINISHPAGE' />
 1839:       </resource>
 1840:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
 1841:     <choices variable="EMPTY_PAGES">
 1842:       <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
 1843:       <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
 1844:       <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
 1845:       <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
 1846:     </choices>
 1847:     <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
 1848:     <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
 1849: RESOURCE_SELECTOR
 1850: 
 1851:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
 1852:   <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
 1853:       <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
 1854:       <message><b>Select sort order</b> </message>
 1855:     <choices variable='student_sort'>
 1856:       <choice computer='0'>Sort by section then student</choice>
 1857:       <choice computer='1'>Sort by students across sections.</choice>
 1858:     </choices>
 1859:     $resource_selector
 1860:   </state>
 1861: CHOOSE_STUDENTS
 1862: 
 1863: 	my $cdom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
 1864: 	my $cnum = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
 1865:         my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 1866: 	my $namechoice='<choice></choice>';
 1867: 	foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 1868: 	    if ($name =~ /^error: 2 /) { next; }
 1869: 	    $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
 1870: 	}
 1871:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
 1872:   <state name="CHOOSE_ANON1" title="Select Students and Resources">
 1873:     <nextstate>PAGESIZE</nextstate>
 1874:     <message><hr width='33%' /></message>
 1875:     <message><table><tr><td><b>Number of anonymous assignments to print?</b></td><td></message>
 1876:     <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
 1877:        <validator>
 1878: 	if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
 1879: 	    !\$helper->{'VARS'}{'REUSE_OLD_CODES'}) {
 1880: 	    return "You need to specify the number of assignments to print";
 1881: 	}
 1882: 	return undef;
 1883:        </validator>
 1884:     </string>
 1885:     <message></td></tr><tr><td></message>
 1886:     <message><b>Names to store the CODEs under for later:</b></message>
 1887:     <message></td><td></message>
 1888:     <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
 1889:     <message></td></tr></table></message>
 1890:     <message><hr width='33%' /></message>
 1891:     <message><b>Reprint a set of saved CODEs:</b></message>
 1892:     <dropdown variable="REUSE_OLD_CODES">
 1893:         $namechoice
 1894:     </dropdown>
 1895:     <message><hr width='33%' /></message>
 1896:     $resource_selector
 1897:   </state>
 1898: CHOOSE_ANON1
 1899: 
 1900: 
 1901: 	if ($helper->{VARS}->{'assignment'}) {
 1902: 	    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'];
 1903: 	    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'];
 1904: 	}
 1905: 	    
 1906: 
 1907: 	$resource_selector=<<RESOURCE_SELECTOR;
 1908:     <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
 1909:     <resource variable="RESOURCES" multichoice="1" addstatus="1" 
 1910:               closeallpages="1">
 1911:       <filterfunc>return $isNotMap;</filterfunc>
 1912:       <mapurl>$map</mapurl>
 1913:       <valuefunc>return $symbFilter;</valuefunc>
 1914:       <option text='Newpage' variable='FINISHPAGE' />
 1915:       </resource>
 1916:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
 1917:     <choices variable="EMPTY_PAGES">
 1918:       <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
 1919:       <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
 1920:       <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
 1921:       <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
 1922:     </choices>
 1923:     <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
 1924:     <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
 1925: RESOURCE_SELECTOR
 1926: 
 1927: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
 1928:   <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
 1929:     <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
 1930:     <choices variable='student_sort'>
 1931:       <choice computer='0'>Sort by section then student</choice>
 1932:       <choice computer='1'>Sort by students across sections.</choice>
 1933:     </choices>
 1934: 
 1935:     $resource_selector
 1936:     </state>
 1937: CHOOSE_STUDENTS1
 1938: 
 1939: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
 1940:   <state name="CHOOSE_ANON2" title="Select Students and Resources">
 1941:     <nextstate>PAGESIZE</nextstate>
 1942:     <message><table><tr><td><b>Number of anonymous assignments to print?</b></td><td></message>
 1943:     <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
 1944:        <validator>
 1945: 	if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
 1946: 	    !\$helper->{'VARS'}{'REUSE_OLD_CODES'}) {
 1947: 	    return "You need to specify the number of assignments to print";
 1948: 	}
 1949: 	return undef;
 1950:        </validator>
 1951:     </string>
 1952:     <message></td></tr><tr><td></message>
 1953:     <message><b>Names to store the CODEs under for later:</b></message>
 1954:     <message></td><td></message>
 1955:     <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
 1956:     <message></td></tr></table></message>
 1957:     <message><hr width='33%' /></message>
 1958:     <message><b>Reprint a set of saved CODEs:</b></message>
 1959:     <dropdown variable="REUSE_OLD_CODES">
 1960:         $namechoice
 1961:     </dropdown>
 1962:     <message><hr width='33%' /></message>
 1963:     $resource_selector
 1964:   </state>
 1965: CHOOSE_ANON2
 1966:     }
 1967: 
 1968:     # FIXME: That RE should come from a library somewhere.
 1969:     if ((((&Apache::lonnet::allowed('bre',$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 $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/') {    
 1970:         push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from current subdirectory')." <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
 1971: 
 1972:         my $f = '$filename';
 1973:         my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
 1974:   <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
 1975:     <message>(mark them then click "next" button) <br /></message>
 1976:     <files variable="FILES" multichoice='1'>
 1977:       <nextstate>PAGESIZE</nextstate>
 1978:       <filechoice>return '$subdir';</filechoice>
 1979: CHOOSE_FROM_SUBDIR
 1980:         
 1981:         # this is broken up because I really want interpolation above,
 1982:         # and I really DON'T want it below
 1983:         $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
 1984:       <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
 1985: 	  $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
 1986:       </filefilter>
 1987:       </files>
 1988:     </state>
 1989: CHOOSE_FROM_SUBDIR
 1990:         &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
 1991:     }
 1992: 
 1993:     # Allow the user to select any sequence in the course, feed it to
 1994:     # another resource selector for that sequence
 1995:     if (!$helper->{VARS}->{'construction'}) {
 1996: 	push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
 1997: 			      'select_sequences', 'CHOOSE_SEQUENCE'];
 1998: 	my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
 1999: 	#Escape apostrophes and backslashes for Perl
 2000: 	$escapedSequenceName =~ s/\\/\\\\/g;
 2001: 	$escapedSequenceName =~ s/'/\\'/g;
 2002: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
 2003:   <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
 2004:     <message>Select the sequence to print resources from:</message>
 2005:     <resource variable="SEQUENCE">
 2006:       <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
 2007:       <filterfunc>return \$res->is_sequence;</filterfunc>
 2008:       <valuefunc>return $urlValue;</valuefunc>
 2009:       <option text='Newpage' variable='FINISHPAGE' />
 2010:       </resource>
 2011:     </state>
 2012:   <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
 2013:     <message>(mark desired resources then click "next" button) <br /></message>
 2014:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
 2015:               closeallpages="1">
 2016:       <nextstate>PAGESIZE</nextstate>
 2017:       <filterfunc>return $isProblem</filterfunc>
 2018:       <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
 2019:       <valuefunc>return $symbFilter;</valuefunc>
 2020:       <option text='Newpage' variable='FINISHPAGE' />
 2021:       </resource>
 2022:     </state>
 2023: CHOOSE_FROM_ANY_SEQUENCE
 2024: }
 2025: 
 2026:     # Generate the first state, to select which resources get printed.
 2027:     Apache::lonhelper::state->new("START", "Select Printing Options:");
 2028:     $paramHash = Apache::lonhelper::getParamHash();
 2029:     $paramHash->{MESSAGE_TEXT} = "";
 2030:     Apache::lonhelper::message->new();
 2031:     $paramHash = Apache::lonhelper::getParamHash();
 2032:     $paramHash->{'variable'} = 'PRINT_TYPE';
 2033:     $helper->declareVar('PRINT_TYPE');
 2034:     $paramHash->{CHOICES} = $printChoices;
 2035:     Apache::lonhelper::choices->new();
 2036: 
 2037:     my $startedTable = 0; # have we started an HTML table yet? (need
 2038:                           # to close it later)
 2039: 
 2040:     if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
 2041: 	($helper->{VARS}->{'construction'} eq '1')) {
 2042: 	addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
 2043:         $paramHash = Apache::lonhelper::getParamHash();
 2044: 	$paramHash->{'variable'} = 'ANSWER_TYPE';   
 2045: 	$helper->declareVar('ANSWER_TYPE');         
 2046:         $paramHash->{CHOICES} = [
 2047:                                    ['Without Answers', 'yes'],
 2048:                                    ['With Answers', 'no'],
 2049:                                    ['Only Answers', 'only'],
 2050:                                    ['As Exam Problem', 'exam']
 2051:                                 ];
 2052:         Apache::lonhelper::dropdown->new();
 2053: 	addMessage("</td></tr>");
 2054: 	$startedTable = 1;
 2055:     }
 2056: 
 2057:     if ($ENV{'request.role.adv'}) {
 2058: 	if (!$startedTable) {
 2059: 	    addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
 2060: 	    $startedTable = 1;
 2061: 	} else {
 2062: 	    addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
 2063: 	}
 2064:         $paramHash = Apache::lonhelper::getParamHash();
 2065: 	$paramHash->{'variable'} = 'LATEX_TYPE';   
 2066: 	$helper->declareVar('LATEX_TYPE');  
 2067: 	if ($helper->{VARS}->{'construction'} eq '1') {       
 2068: 	    $paramHash->{CHOICES} = [
 2069: 				     ['standard LaTeX mode', 'standard'], 
 2070: 				     ['LaTeX batchmode', 'batchmode'], ];
 2071: 	} else {
 2072: 	    $paramHash->{CHOICES} = [
 2073: 				     ['LaTeX batchmode', 'batchmode'],
 2074: 				     ['standard LaTeX mode', 'standard'] ];
 2075: 	}
 2076:         Apache::lonhelper::dropdown->new();
 2077:  
 2078: 	addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
 2079:         $paramHash = Apache::lonhelper::getParamHash();
 2080: 	$paramHash->{'variable'} = 'TABLE_CONTENTS';   
 2081: 	$helper->declareVar('TABLE_CONTENTS');         
 2082:         $paramHash->{CHOICES} = [
 2083:                                    ['No', 'no'],
 2084:                                    ['Yes', 'yes'] ];
 2085:         Apache::lonhelper::dropdown->new();
 2086: 	addMessage("</td></tr>");
 2087:         
 2088: 	if (not $helper->{VARS}->{'construction'}) {
 2089: 	    addMessage("<tr><td align='right'>Print Index: </td><td>");
 2090: 	    $paramHash = Apache::lonhelper::getParamHash();
 2091: 	    $paramHash->{'variable'} = 'TABLE_INDEX';   
 2092: 	    $helper->declareVar('TABLE_INDEX');         
 2093: 	    $paramHash->{CHOICES} = [
 2094: 				     ['No', 'no'],
 2095: 				     ['Yes', 'yes'] ];
 2096: 	    Apache::lonhelper::dropdown->new();
 2097: 	    addMessage("</td></tr>");
 2098: 	    addMessage("<tr><td align='right'>Print Discussions: </td><td>");
 2099: 	    $paramHash = Apache::lonhelper::getParamHash();
 2100: 	    $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';   
 2101: 	    $helper->declareVar('PRINT_DISCUSSIONS');         
 2102: 	    $paramHash->{CHOICES} = [
 2103: 				     ['No', 'no'],
 2104: 				     ['Yes', 'yes'] ];
 2105: 	    Apache::lonhelper::dropdown->new();
 2106: 	    addMessage("</td></tr>");
 2107: 	}
 2108: 
 2109: 	if ($helper->{'VARS'}->{'construction'}) { 
 2110: 	    my $stylevalue=$ENV{'construct.style'};
 2111: 	    my $xmlfrag .= <<"RNDSEED";
 2112: 	    <message><tr><td align='right'>Use random seed:  </td><td></message>
 2113: 	    <string variable="curseed" size="15" maxlength="15">
 2114: 		<defaultvalue>
 2115: 	            return $helper->{VARS}->{'curseed'};
 2116: 	        </defaultvalue>
 2117: 	    </string>
 2118: 	     <message></td></tr><tr><td align="right">Use style file:</td><td></message>
 2119:              <message><input type="text" size="40" name="style_file_value" value="$stylevalue"  />&nbsp; <a href="javascript:openbrowser('helpform','style_file','sty')">Select style file</a> </td><td></message>
 2120:              <message></td></tr></message>
 2121: RNDSEED
 2122:             &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
 2123: 	    $helper->{'VARS'}->{'style_file'}=$ENV{'form.style_file_value'};
 2124: 	}
 2125:     }
 2126: 
 2127: 
 2128: 
 2129: 
 2130:     if ($startedTable) {
 2131: 	addMessage("</table>");
 2132:     }
 2133: 
 2134:     Apache::lonprintout::page_format_state->new("FORMAT");
 2135: 
 2136:     # Generate the PAGESIZE state which will offer the user the margin
 2137:     # choices if they select one column
 2138:     Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
 2139:     Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
 2140: 
 2141: 
 2142:     $helper->process();
 2143: 
 2144:     # MANUAL BAILOUT CONDITION:
 2145:     # If we're in the "final" state, bailout and return to handler
 2146:     if ($helper->{STATE} eq 'FINAL') {
 2147:         return $helper;
 2148:     }    
 2149: 
 2150:     $r->print($helper->display());
 2151: 
 2152:     &Apache::lonhelper::unregisterHelperTags();
 2153: 
 2154:     return OK;
 2155: }
 2156: 
 2157: 
 2158: 1;
 2159: 
 2160: package Apache::lonprintout::page_format_state;
 2161: 
 2162: =pod
 2163: 
 2164: =head1 Helper element: page_format_state
 2165: 
 2166: See lonhelper.pm documentation for discussion of the helper framework.
 2167: 
 2168: Apache::lonprintout::page_format_state is an element that gives the 
 2169: user an opportunity to select the page layout they wish to print 
 2170: with: Number of columns, portrait/landscape, and paper size. If you 
 2171: want to change the paper size choices, change the @paperSize array 
 2172: contents in this package.
 2173: 
 2174: page_format_state is always directly invoked in lonprintout.pm, so there
 2175: is no tag interface. You actually pass parameters to the constructor.
 2176: 
 2177: =over 4
 2178: 
 2179: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 2180: 
 2181: =back
 2182: 
 2183: =cut
 2184: 
 2185: use Apache::lonhelper;
 2186: 
 2187: no strict;
 2188: @ISA = ("Apache::lonhelper::element");
 2189: use strict;
 2190: use Apache::lonlocal;
 2191: 
 2192: my $maxColumns = 2;
 2193: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]", 
 2194:                  "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
 2195:                  "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]", 
 2196:                  "a5 [148x210 mm]", "a6 [105x148 mm]" );
 2197: 
 2198: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
 2199: #                   Paper type
 2200: 
 2201: sub new { 
 2202:     my $self = Apache::lonhelper::element->new();
 2203: 
 2204:     shift;
 2205: 
 2206:     $self->{'variable'} = shift;
 2207:     my $helper = Apache::lonhelper::getHelper();
 2208:     $helper->declareVar($self->{'variable'});
 2209:     bless($self);
 2210:     return $self;
 2211: }
 2212: 
 2213: sub render {
 2214:     my $self = shift;
 2215:     my $helper = Apache::lonhelper::getHelper();
 2216:     my $result = '';
 2217:     my $var = $self->{'variable'};
 2218:     my $PageLayout=&mt('Page layout');
 2219:     my $NumberOfColumns=&mt('Number of columns');
 2220:     my $PaperType=&mt('Paper type');
 2221:     $result .= <<STATEHTML;
 2222: 
 2223: <hr width="33%" />
 2224: <table cellpadding="3">
 2225:   <tr>
 2226:     <td align="center"><b>$PageLayout</b></td>
 2227:     <td align="center"><b>$NumberOfColumns</b></td>
 2228:     <td align="center"><b>$PaperType</b></td>
 2229:   </tr>
 2230:   <tr>
 2231:     <td>
 2232:       <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
 2233:       <input type="radio" name="${var}.layout" value="P" checked='1'  /> Portrait
 2234:     </td>
 2235:     <td align="center">
 2236:       <select name="${var}.cols">
 2237: STATEHTML
 2238: 
 2239:     my $i;
 2240:     for ($i = 1; $i <= $maxColumns; $i++) {
 2241:         if ($i == 2) {
 2242:             $result .= "<option value='$i' selected>$i</option>\n";
 2243:         } else {
 2244:             $result .= "<option value='$i'>$i</option>\n";
 2245:         }
 2246:     }
 2247: 
 2248:     $result .= "</select></td><td>\n";
 2249:     $result .= "<select name='${var}.paper'>\n";
 2250: 
 2251:     my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
 2252:     my $DefaultPaperSize=$parmhash{'default_paper_size'};
 2253:     if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
 2254:     $i = 0;
 2255:     foreach (@paperSize) {
 2256: 	$_=~/(\w+)/;
 2257: 	my $papersize=$1;
 2258:         if ($paperSize[$i]=~/$DefaultPaperSize/) {
 2259:             $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
 2260:         } else {
 2261:             $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
 2262:         }
 2263:         $i++;
 2264:     }
 2265:     $result .= "</select></td></tr></table>";
 2266:     return $result;
 2267: }
 2268: 
 2269: sub postprocess {
 2270:     my $self = shift;
 2271: 
 2272:     my $var = $self->{'variable'};
 2273:     my $helper = Apache::lonhelper->getHelper();
 2274:     $helper->{VARS}->{$var} = 
 2275:         $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
 2276:         $ENV{"form.$var.paper"};
 2277:     return 1;
 2278: }
 2279: 
 2280: 1;
 2281: 
 2282: package Apache::lonprintout::page_size_state;
 2283: 
 2284: =pod
 2285: 
 2286: =head1 Helper element: page_size_state
 2287: 
 2288: See lonhelper.pm documentation for discussion of the helper framework.
 2289: 
 2290: Apache::lonprintout::page_size_state is an element that gives the 
 2291: user the opportunity to further refine the page settings if they
 2292: select a single-column page.
 2293: 
 2294: page_size_state is always directly invoked in lonprintout.pm, so there
 2295: is no tag interface. You actually pass parameters to the constructor.
 2296: 
 2297: =over 4
 2298: 
 2299: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 2300: 
 2301: =back
 2302: 
 2303: =cut
 2304: 
 2305: use Apache::lonhelper;
 2306: 
 2307: no strict;
 2308: @ISA = ("Apache::lonhelper::element");
 2309: use strict;
 2310: 
 2311: 
 2312: 
 2313: sub new { 
 2314:     my $self = Apache::lonhelper::element->new();
 2315: 
 2316:     shift; # disturbs me (probably prevents subclassing) but works (drops
 2317:            # package descriptor)... - Jeremy
 2318: 
 2319:     $self->{'variable'} = shift;
 2320:     my $helper = Apache::lonhelper::getHelper();
 2321:     $helper->declareVar($self->{'variable'});
 2322: 
 2323:     # The variable name of the format element, so we can look into 
 2324:     # $helper->{VARS} to figure out whether the columns are one or two
 2325:     $self->{'formatvar'} = shift;
 2326: 
 2327:     # The state to transition to after selection, or after discovering
 2328:     # the cols are not set to 1
 2329:     $self->{NEXTSTATE} = shift;
 2330:     bless($self);
 2331:     return $self;
 2332: }
 2333: 
 2334: sub render {
 2335:     my $self = shift;
 2336:     my $helper = Apache::lonhelper::getHelper();
 2337:     my $result = '';
 2338:     my $var = $self->{'variable'};
 2339: 
 2340:     if (defined $self->{ERROR_MSG}) {
 2341:         $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
 2342:     }
 2343: 
 2344:     $result .= <<ELEMENTHTML;
 2345: 
 2346: <p>How should the column be formatted?</p>
 2347: 
 2348: <table cellpadding='3'>
 2349:   <tr>
 2350:     <td align='right'><b>Width</b>:</td>
 2351:     <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
 2352:     <td align='left'>
 2353:       <select name='$var.widthunit'>
 2354:         <option>cm</option><option>in</option>
 2355:       </select>
 2356:     </td>
 2357:   </tr>
 2358:   <tr>
 2359:     <td align='right'><b>Height</b>:</td>
 2360:     <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
 2361:     <td align='left'>
 2362:       <select name='$var.heightunit'>
 2363:         <option>cm</option><option>in</option>
 2364:       </select>
 2365:     </td>
 2366:   </tr>
 2367:   <tr>
 2368:     <td align='right'><b>Left margin</b>:</td>
 2369:     <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
 2370:     <td align='left'>
 2371:       <select name='$var.lmarginunit'>
 2372:         <option>cm</option><option>in</option>
 2373:       </select>
 2374:     </td>
 2375:   </tr>
 2376: </table>
 2377: 
 2378: <p>Hint: Some instructors like to leave scratch space for the student by
 2379: making the width much smaller than the width of the page.</p>
 2380: 
 2381: ELEMENTHTML
 2382: 
 2383:     return $result;
 2384: }
 2385: 
 2386: # If the user didn't select 1 column, skip this state.
 2387: sub preprocess {
 2388:     my $self = shift;
 2389:     my $helper = Apache::lonhelper::getHelper();
 2390: 
 2391:     my $format = $helper->{VARS}->{$self->{'formatvar'}};
 2392:     if (substr($format, 2, 1) ne '1') {
 2393:         $helper->changeState($self->{NEXTSTATE});
 2394:     }
 2395:    
 2396:     return 1;
 2397: }
 2398: 
 2399: sub postprocess {
 2400:     my $self = shift;
 2401: 
 2402:     my $var = $self->{'variable'};
 2403:     my $helper = Apache::lonhelper->getHelper();
 2404:     my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; 
 2405:     my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; 
 2406:     my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; 
 2407:     $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; 
 2408:     $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; 
 2409:     $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; 
 2410: 
 2411:     my $error = '';
 2412: 
 2413:     # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
 2414:     # by an optional period, followed by digits, ending the string
 2415: 
 2416:     if ($width !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2417:         $error .= "Invalid width; please type only a number.<br />\n";
 2418:     }
 2419:     if ($height !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2420:         $error .= "Invalid height; please type only a number.<br />\n";
 2421:     }
 2422:     if ($lmargin !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2423:         $error .= "Invalid left margin; please type only a number.<br />\n";
 2424:     }
 2425: 
 2426:     if (!$error) {
 2427:         Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
 2428:         return 1;
 2429:     } else {
 2430:         $self->{ERROR_MSG} = $error;
 2431:         return 0;
 2432:     }
 2433: }
 2434: 
 2435: 
 2436: 
 2437: __END__
 2438: 

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