Diff for /loncom/interface/lonprintout.pm between versions 1.10 and 1.273

version 1.10, 2001/12/07 23:35:54 version 1.273, 2004/02/03 21:57:48
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Printout  # Printout
 #  #
 # (Internal Server Error Handler  # $Id$
 #  #
 # (Login Screen  # Copyright Michigan State University Board of Trustees
 # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,  
 # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)  
 #  #
 # 3/1/1 Gerd Kortemeyer)  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #  #
 # 3/1 Gerd Kortemeyer  # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
 #  #
 # 9/17 Alex Sakharuk  
 #  #
 package Apache::lonprintout;  package Apache::lonprintout;
   
Line 19  use strict; Line 32  use strict;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::lonnet;  use Apache::lonnet;
   use Apache::loncommon;
   use Apache::inputtags;
   use Apache::grades;
   use Apache::edit;
 use Apache::File();  use Apache::File();
   use Apache::lonnavmaps;
   use Apache::lonratedt;
   use POSIX qw(strftime);
   use Apache::lonlocal;
   use GDBM_File;
   
   
   my %hash;
   my $LaTeXwidth = 0;
   
   
   sub latex_header_footer_remove {
       my $text = shift;
       $text =~ s/\\end{document}//;
       $text =~ s/\\documentclass([^&]*)\\begin{document}//;
       return $text;
   }
   
   
   sub character_chart {
       my $result = shift;
       $result =~ s/&\#0?0?(7|9);//g;
       $result =~ s/&\#0?(10|13);//g;
       $result =~ s/&\#0?32;/ /g;
       $result =~ s/&\#0?33;/!/g;
       $result =~ s/&(\#0?34|quot);/\"/g;
       $result =~ s/&\#0?35;/\\\#/g;
       $result =~ s/&\#0?36;/\\\$/g;
       $result =~ s/&\#0?37;/\\%/g; 
       $result =~ s/&(\#0?38|amp);/\\&/g; 
       $result =~ s/&\#(0?39|146);/\'/g;
       $result =~ s/&\#0?40;/(/g;
       $result =~ s/&\#0?41;/)/g;
       $result =~ s/&\#0?42;/\*/g;
       $result =~ s/&\#0?43;/\+/g;
       $result =~ s/&\#(0?44|130);/,/g;
       $result =~ s/&\#0?45;/-/g;
       $result =~ s/&\#0?46;/\./g;
       $result =~ s/&\#0?47;/\//g;
       $result =~ s/&\#0?48;/0/g;
       $result =~ s/&\#0?49;/1/g;
       $result =~ s/&\#0?50;/2/g;
       $result =~ s/&\#0?51;/3/g;
       $result =~ s/&\#0?52;/4/g;
       $result =~ s/&\#0?53;/5/g;
       $result =~ s/&\#0?54;/6/g;
       $result =~ s/&\#0?55;/7/g;
       $result =~ s/&\#0?56;/8/g;
       $result =~ s/&\#0?57;/9/g;
       $result =~ s/&\#0?58;/:/g;
       $result =~ s/&\#0?59;/;/g;
       $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
       $result =~ s/&\#0?61;/\$=\$/g;
       $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;
       $result =~ s/&\#0?63;/\?/g;
       $result =~ s/&\#0?65;/A/g;
       $result =~ s/&\#0?66;/B/g;
       $result =~ s/&\#0?67;/C/g;
       $result =~ s/&\#0?68;/D/g;
       $result =~ s/&\#0?69;/E/g;
       $result =~ s/&\#0?70;/F/g;
       $result =~ s/&\#0?71;/G/g;
       $result =~ s/&\#0?72;/H/g;
       $result =~ s/&\#0?73;/I/g;
       $result =~ s/&\#0?74;/J/g;
       $result =~ s/&\#0?75;/K/g;
       $result =~ s/&\#0?76;/L/g;
       $result =~ s/&\#0?77;/M/g;
       $result =~ s/&\#0?78;/N/g;
       $result =~ s/&\#0?79;/O/g;
       $result =~ s/&\#0?80;/P/g;
       $result =~ s/&\#0?81;/Q/g;
       $result =~ s/&\#0?82;/R/g;
       $result =~ s/&\#0?83;/S/g;
       $result =~ s/&\#0?84;/T/g;
       $result =~ s/&\#0?85;/U/g;
       $result =~ s/&\#0?86;/V/g;
       $result =~ s/&\#0?87;/W/g;
       $result =~ s/&\#0?88;/X/g;
       $result =~ s/&\#0?89;/Y/g;
       $result =~ s/&\#0?90;/Z/g;
       $result =~ s/&\#0?91;/[/g;
       $result =~ s/&\#0?92;/\$\\setminus\$/g;
       $result =~ s/&\#0?93;/]/g;
       $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;
       $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
       $result =~ s/&\#(0?96|145);/\`/g;
       $result =~ s/&\#0?97;/a/g;
       $result =~ s/&\#0?98;/b/g;
       $result =~ s/&\#0?99;/c/g;
       $result =~ s/&\#100;/d/g;
       $result =~ s/&\#101;/e/g;
       $result =~ s/&\#102;/f/g;
       $result =~ s/&\#103;/g/g;
       $result =~ s/&\#104;/h/g;
       $result =~ s/&\#105;/i/g;
       $result =~ s/&\#106;/j/g;
       $result =~ s/&\#107;/k/g;
       $result =~ s/&\#108;/l/g;
       $result =~ s/&\#109;/m/g;
       $result =~ s/&\#110;/n/g;
       $result =~ s/&\#111;/o/g;
       $result =~ s/&\#112;/p/g;
       $result =~ s/&\#113;/q/g;
       $result =~ s/&\#114;/r/g;
       $result =~ s/&\#115;/s/g;
       $result =~ s/&\#116;/t/g;
       $result =~ s/&\#117;/u/g;
       $result =~ s/&\#118;/v/g;
       $result =~ s/&\#119;/w/g;
       $result =~ s/&\#120;/x/g;
       $result =~ s/&\#121;/y/g;
       $result =~ s/&\#122;/z/g;
       $result =~ s/&\#123;/\\{/g;
       $result =~ s/&\#124;/\|/g;
       $result =~ s/&\#125;/\\}/g;
       $result =~ s/&\#126;/\~/g;
       $result =~ s/&\#131;/\\textflorin /g;
       $result =~ s/&\#132;/\"/g;
       $result =~ s/&\#133;/\$\\ldots\$/g;
       $result =~ s/&\#134;/\$\\dagger\$/g;
       $result =~ s/&\#135;/\$\\ddagger\$/g;
       $result =~ s/&\#137;/\\textperthousand /g;
       $result =~ s/&\#140;/{\\OE}/g;
       $result =~ s/&\#147;/\`\`/g;
       $result =~ s/&\#148;/\'\'/g;
       $result =~ s/&\#149;/\$\\bullet\$/g;
       $result =~ s/&\#150;/--/g;
       $result =~ s/&\#151;/---/g;
       $result =~ s/&\#152;/\$\\sim\$/g;
       $result =~ s/&\#153;/\\texttrademark /g;
       $result =~ s/&\#156;/\\oe/g;
       $result =~ s/&\#159;/\\\"Y/g;
       $result =~ s/&(\#160|nbsp);//g;
       $result =~ s/&(\#161|iexcl);/!\`/g;
       $result =~ s/&(\#162|cent);/\\textcent /g;
       $result =~ s/&(\#163|pound);/\\pounds /g; 
       $result =~ s/&(\#164|curren);/\\textcurrency /g;
       $result =~ s/&(\#165|yen);/\\textyen /g;
       $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
       $result =~ s/&(\#167|sect);/\\textsection /g;
       $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
       $result =~ s/&(\#169|copy);/\\copyright /g;
       $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
       $result =~ s/&(\#172|not);/\$\\neg\$/g;
       $result =~ s/&(\#173|shy);/ - /g;
       $result =~ s/&(\#174|reg);/\\textregistered /g;
       $result =~ s/&(\#175|macr);/\$^{-}\$/g;
       $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;
       $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;
       $result =~ s/&(\#178|sup2);/\$^2\$/g;
       $result =~ s/&(\#179|sup3);/\$^3\$/g;
       $result =~ s/&(\#180|acute);/\\textacute /g;
       $result =~ s/&(\#181|micro);/\$\\mu\$/g;
       $result =~ s/&(\#182|para);/\\P/g;
       $result =~ s/&(\#183|middot);/\$\\cdot\$/g;
       $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
       $result =~ s/&(\#185|sup1);/\$^1\$/g;
       $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
       $result =~ s/&(\#188|frac14);/\\textonequarter /g;
       $result =~ s/&(\#189|frac12);/\\textonehalf /g;
       $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
       $result =~ s/&(\#191|iquest);/?\`/g;   
       $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
       $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
       $result =~ s/&(\#194|Acirc);/\\^{A}/g;
       $result =~ s/&(\#195|Atilde);/\\~{A}/g;
       $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
       $result =~ s/&(\#197|Aring);/{\\AA}/g;
       $result =~ s/&(\#198|AElig);/{\\AE}/g;
       $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
       $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
       $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
       $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
       $result =~ s/&(\#203|Euml);/\\\"{E}/g;
       $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
       $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
       $result =~ s/&(\#206|Icirc);/\\^{I}/g;
       $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
       $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
       $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
       $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
       $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
       $result =~ s/&(\#213|Otilde);/\\~{O}/g;
       $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
       $result =~ s/&(\#215|times);/\$\\times\$/g;
       $result =~ s/&(\#216|Oslash);/{\\O}/g;
       $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
       $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
       $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
       $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
       $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
       $result =~ s/&(\#223|szlig);/\\ss/g;
       $result =~ s/&(\#224|agrave);/\\\`{a}/g;
       $result =~ s/&(\#225|aacute);/\\\'{a}/g;
       $result =~ s/&(\#226|acirc);/\\^{a}/g;
       $result =~ s/&(\#227|atilde);/\\~{a}/g;
       $result =~ s/&(\#228|auml);/\\\"{a}/g;
       $result =~ s/&(\#229|aring);/{\\aa}/g;
       $result =~ s/&(\#230|aelig);/{\\ae}/g;
       $result =~ s/&(\#231|ccedil);/\\c{c}/g;
       $result =~ s/&(\#232|egrave);/\\\`{e}/g;
       $result =~ s/&(\#233|eacute);/\\\'{e}/g;
       $result =~ s/&(\#234|ecirc);/\\^{e}/g;
       $result =~ s/&(\#235|euml);/\\\"{e}/g;
       $result =~ s/&(\#236|igrave);/\\\`{i}/g;
       $result =~ s/&(\#237|iacute);/\\\'{i}/g;
       $result =~ s/&(\#238|icirc);/\\^{i}/g;
       $result =~ s/&(\#239|iuml);/\\\"{i}/g;
       $result =~ s/&(\#240|eth);/\$\\partial\$/g;
       $result =~ s/&(\#241|ntilde);/\\~{n}/g;
       $result =~ s/&(\#242|ograve);/\\\`{o}/g;
       $result =~ s/&(\#243|oacute);/\\\'{o}/g;
       $result =~ s/&(\#244|ocirc);/\\^{o}/g;
       $result =~ s/&(\#245|otilde);/\\~{o}/g;
       $result =~ s/&(\#246|ouml);/\\\"{o}/g;
       $result =~ s/&(\#247|divide);/\$\\div\$/g;
       $result =~ s/&(\#248|oslash);/{\\o}/g;
       $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
       $result =~ s/&(\#250|uacute);/\\\'{u}/g;
       $result =~ s/&(\#251|ucirc);/\\^{u}/g;
       $result =~ s/&(\#252|uuml);/\\\"{u}/g;
       $result =~ s/&(\#253|yacute);/\\\'{y}/g;
       $result =~ s/&(\#255|yuml);/\\\"{y}/g;
       $result =~ s/&\#952;/\$\\theta\$/g;
   #Greek Alphabet
       $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;
       $result =~ s/&(beta|\#946);/\$\\beta \$/g;
       $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;
       $result =~ s/&(delta|\#948);/\$\\delta \$/g;
       $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;
       $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;
       $result =~ s/&(eta|\#951);/\$\\eta \$/g;
       $result =~ s/&(theta|\#952);/\$\\theta \$/g;
       $result =~ s/&(iota|\#953);/\$\\iota \$/g;
       $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;
       $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;
       $result =~ s/&(mu|\#956);/\$\\mu \$/g;
       $result =~ s/&(nu|\#957);/\$\\nu \$/g;
       $result =~ s/&(xi|\#958);/\$\\xi \$/g;
       $result =~ s/&(omicron|\#959);/o/g;
       $result =~ s/&(pi|\#960);/\$\\pi \$/g;
       $result =~ s/&(rho|\#961);/\$\\rho \$/g;
       $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
       $result =~ s/&(tau|\#964);/\$\\tau \$/g;
       $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
       $result =~ s/&(phi|\#966);/\$\\phi \$/g;
       $result =~ s/&(chi|\#967);/\$\\chi \$/g;
       $result =~ s/&(psi|\#968);/\$\\psi \$/g;
       $result =~ s/&(omega|\#969);/\$\\omega \$/g;
       $result =~ s/&(thetasym|\#977);/\$\\vartheta \$/g;
       $result =~ s/&(piv|\#982);/\$\\varpi \$/g;
       $result =~ s/&(Alpha|\#913);/A/g;
       $result =~ s/&(Beta|\#914);/B/g;
       $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
       $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
       $result =~ s/&(Epsilon|\#917);/E/g;
       $result =~ s/&(Zeta|\#918);/Z/g;
       $result =~ s/&(Eta|\#919);/H/g;
       $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
       $result =~ s/&(Iota|\#921);/I/g;
       $result =~ s/&(Kappa|\#922);/K/g;
       $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
       $result =~ s/&(Mu|\#924);/M/g;
       $result =~ s/&(Nu|\#925);/N/g;
       $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
       $result =~ s/&(Omicron|\#927);/O/g;
       $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
       $result =~ s/&(Rho|\#929);/P/g;
       $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
       $result =~ s/&(Tau|\#932);/T/g;
       $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
       $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
       $result =~ s/&(Chi|\#935);/X/g;
       $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
       $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
   #Arrows (extended HTML 4.01)
       $result =~ s/&(larr|\#8592);/\$\\leftarrow \$/g;
       $result =~ s/&(uarr|\#8593);/\$\\uparrow \$/g;
       $result =~ s/&(rarr|\#8594);/\$\\rightarrow \$/g;
       $result =~ s/&(darr|\#8595);/\$\\downarrow \$/g;
       $result =~ s/&(harr|\#8596);/\$\\leftrightarrow \$/g;
       $result =~ s/&(lArr|\#8656);/\$\\Leftarrow \$/g;
       $result =~ s/&(uArr|\#8657);/\$\\Uparrow \$/g;
       $result =~ s/&(rArr|\#8658);/\$\\Rightarrow \$/g;
       $result =~ s/&(dArr|\#8659);/\$\\Downarrow \$/g;
       $result =~ s/&(hArr|\#8660);/\$\\Leftrightarrow \$/g;
   #Mathematical Operators (extended HTML 4.01)
       $result =~ s/&(forall|\#8704);/\$\\forall \$/g;
       $result =~ s/&(part|\#8706);/\$\\partial \$/g;
       $result =~ s/&(exist|\#8707);/\$\\exists \$/g;
       $result =~ s/&(empty|\#8709);/\$\\emptyset \$/g;
       $result =~ s/&(nabla|\#8711);/\$\\nabla \$/g;
       $result =~ s/&(isin|\#8712);/\$\\in \$/g;
       $result =~ s/&(notin|\#8713);/\$\\notin \$/g;
       $result =~ s/&(ni|\#8715);/\$\\ni \$/g;
       $result =~ s/&(prod|\#8719);/\$\\prod \$/g;
       $result =~ s/&(sum|\#8721);/\$\\sum \$/g;
       $result =~ s/&(minus|\#8722);/\$-\$/g;
       $result =~ s/&(lowast|\#8727);/\$*\$/g;
       $result =~ s/&(radic|\#8730);/\$\\surd \$/g;
       $result =~ s/&(prop|\#8733);/\$\\propto \$/g;
       $result =~ s/&(infin|\#8734);/\$\\infty \$/g;
       $result =~ s/&(ang|\#8736);/\$\\angle \$/g;
       $result =~ s/&(and|\#8743);/\$\\wedge \$/g;
       $result =~ s/&(or|\#8744);/\$\\vee \$/g;
       $result =~ s/&(cap|\#8745);/\$\\cap \$/g;
       $result =~ s/&(cup|\#8746);/\$\\cup \$/g;
       $result =~ s/&(int|\#8747);/\$\\int \$/g;
       $result =~ s/&(sim|\#8764);/\$\\sim \$/g;
       $result =~ s/&(cong|\#8773);/\$\\cong \$/g;
       $result =~ s/&(asymp|\#8776);/\$\\approx \$/g;
       $result =~ s/&(ne|\#8800);/\$\\not= \$/g;
       $result =~ s/&(equiv|\#8801);/\$\\equiv \$/g;
       $result =~ s/&(le|\#8804);/\$\\leq \$/g;
       $result =~ s/&(ge|\#8805);/\$\\geq \$/g;
       $result =~ s/&(sub|\#8834);/\$\\subset \$/g;
       $result =~ s/&(sup|\#8835);/\$\\supset \$/g;
       $result =~ s/&(nsub|\#8836);/\$\\not\\subset \$/g;
       $result =~ s/&(sube|\#8838);/\$\\subseteq \$/g;
       $result =~ s/&(supe|\#8839);/\$\\supseteq \$/g;
       $result =~ s/&(oplus|\#8853);/\$\\oplus \$/g;
       $result =~ s/&(otimes|\#8855);/\$\\otimes \$/g;
       $result =~ s/&(perp|\#8869);/\$\\perp \$/g;
       $result =~ s/&(sdot|\#8901);/\$\\cdot \$/g;
   #Geometric Shapes (extended HTML 4.01)
       $result =~ s/&(loz|\#9674);/\$\\Diamond \$/g;
   #Miscellaneous Symbols (extended HTML 4.01)
       $result =~ s/&(spades|\#9824);/\$\\spadesuit \$/g;
       $result =~ s/&(clubs|\#9827);/\$\\clubsuit \$/g;
       $result =~ s/&(hearts|\#9829);/\$\\heartsuit \$/g;
       $result =~ s/&(diams|\#9830);/\$\\diamondsuit \$/g;
       return $result;
   }
   
 sub headerform {  
     my $r = shift;  sub page_format {
     $r->print(<<ENDHEADER);  #
 <html>  #Correspondence between $papersize variable and real paper format:
 <head>  # 0 - "Letter [8 1/2x11 in]"
 <title>LON-CAPA output for printing</title>  # 1 - "Legal [8 1/2x14 in]"
 </head>  # 2 - "Ledger/Tabloid [11x17 in]"
 <body bgcolor="FFFFFF">  # 3 - "Executive [7 1/2x10 in]"
 <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">  # 4 - "A2 [420x594 mm]"
 <h1>Printout:</h1><br></br>  # 5 - "A3 [297x420 mm]"
 ENDHEADER  # 6 - "A4 [210x297 mm]"
   # 7 - "A5 [148x210 mm]"
   # 8 - "A6 [105x148 mm]"
   # 
       my ($papersize,$layout,$numberofcolumns) = @_; 
       my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = (0,0,0,0,0);
       if ($papersize eq '0') {
    if ($layout eq 'book') {
       if ($numberofcolumns == 1) {
    $textwidth = '7.1 in';      #'18 cm';
    $textheight = '10.2 in';    #'25.9 cm';
    $oddoffset = '-0.57 in';
    $evenoffset = '-0.57 in';
       } elsif ($numberofcolumns == 2) {
    $textwidth = '3.66 in';     #'93 mm';
    $textheight = '10.2 in';    #'25.9 cm';
    $oddoffset = '-0.57 in';
    $evenoffset = '-0.57 in';
       }
    } elsif ($layout eq 'album') {
       if ($numberofcolumns eq '1') {
    $textwidth = '8.8 in';
    $textheight = '6.8 in';
    $oddoffset = '-40 pt';
    $evenoffset = '-60 pt';
       } elsif ($numberofcolumns == 2) {
    $textwidth = '4.4 in';
    $textheight = '6.8 in';
    $oddoffset = '-0.5 in';
    $evenoffset = '-1.5 in';
    $topmargin = '3.5 in';
       }
    }
   #    } elsif($papersize eq '1') {
   #    } elsif($papersize eq '2') {
   #    } elsif($papersize eq '3'/) {
       } elsif($papersize eq '6') {
    if ($layout eq 'book') {
       if ($numberofcolumns == 1) {
    $textwidth = '18 cm';
    $textheight = '28 cm';
    $oddoffset = '-0.57 in';
    $evenoffset = '-0.57 in';
       } elsif ($numberofcolumns == 2) {
    $textwidth = '96 mm';
    $textheight = '2 cm';
    $oddoffset = '-0.57 in';
    $evenoffset = '-0.57 in';
       }
    } elsif ($layout eq 'album') {
       if ($numberofcolumns eq '1') {
    $textwidth = '8.5 in';
    $textheight = '7.7 in';
    $oddoffset = '-40 pt';
    $evenoffset = '-60 pt';
       } elsif ($numberofcolumns == 2) {
    $textwidth = '3.9 in';
    $textheight = '7.7 in';
    $oddoffset = '-40 pt';
    $evenoffset = '-60 pt';
       }
    }
   #    } elsif($papersize eq '5') {
   #    } elsif($papersize eq '4') {
   #    } elsif($papersize eq '7') {
   #    } elsif($papersize eq '8') {
       }
       return $textwidth,$textheight,$oddoffset,$evenoffset,$topmargin;
 }  }
   
   
 sub menu_for_output {  sub get_name {
     my $r = shift;      my ($uname,$udom)=@_;
     $r->print(<<ENDMENUOUT);      if (!defined($uname)) { $uname=$ENV{'user.name'}; }
 <input type="hidden" name="phase" value="two">      if (!defined($udom)) { $udom=$ENV{'user.domain'}; }
 <input type="hidden" name="url" value="$ENV{'form.postdata'}">      my $plainname=&Apache::loncommon::plainname($uname,$udom);
 <input type="radio" name="choice" value="Standard LaTeX output for current document">  Standard LaTeX output for current document<br />      if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
 <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  Standard LaTeX output for the primary sequence<br />      $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
 <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  Standard LaTeX output for the top level sequence<br />      return $plainname;
 <input type="submit" value="Please make a choice">  }
 </form>  
 </body>  sub get_course {
 </html>      my $courseidinfo;
 ENDMENUOUT      if (defined($ENV{'request.course.id'})) {
    $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'header');
       }
       return $courseidinfo;
   }
   
   sub page_format_transformation {
       my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist) = @_; 
       my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
       $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
       ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
       my $name = &get_name();
       my $courseidinfo = &get_course();
       if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
       if ($layout eq 'album') {
    my $topmargintoinsert = '';
    if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
       $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}} \\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1} /;
       } elsif ($layout eq 'book') {
    if ($choice ne 'All class print') { 
       $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
    } else {
       $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
    }
       }
       if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
       if ($indexlist eq 'yes') {
    $text=~s/(\\begin{document})/\\makeindex $1/;
    $text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
       }
       return $text;
 }  }
   
   
   sub page_cleanup {
       my $result = shift;
    
       $result =~ m/\\end{document}(\d*)$/;
       my $number_of_columns = $1;
       my $insert = '{';
       for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
       $insert .= '}';
       $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
       $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
       return $result,$number_of_columns;
   }
   
   
   sub details_for_menu {
   
       my $name_of_resourse = &Apache::lonnet::gettitle($ENV{'form.postdata'});
       my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
       my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
       $map=&Apache::lonnet::clutter($map);
       my $name_of_sequence = &Apache::lonnet::gettitle($map);
       if ($name_of_sequence =~ /^\s*$/) {
    $map =~ m|([^/]+)$|;
    $name_of_sequence = $1;
       }
       my $name_of_map = &Apache::lonnet::gettitle($ENV{'request.course.uri'});
       if ($name_of_map =~ /^\s*$/) {
    $ENV{'request.course.uri'} =~ m|([^/]+)$|;
    $name_of_map = $1;
       }
       return ($name_of_resourse,$name_of_sequence,$name_of_map);
   
   }
   
   
   sub latex_corrections {
   
       my ($number_of_columns,$result) = @_;
   
   #    $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
       $result =~ s/\$number_of_columns/$number_of_columns/g;
       $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/;
       $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
       $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
   #-- LaTeX corrections     
       my $first_comment = index($result,'<!--',0);
       while ($first_comment != -1) {
    my $end_comment = index($result,'-->',$first_comment);
    substr($result,$first_comment,$end_comment-$first_comment+3) = '';
    $first_comment = index($result,'<!--',$first_comment);
       }
       $result =~ s/^\s+$//gm; #remove empty lines
       $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
       $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
       $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
       $result =~ s/{\\par }\s*\\\\/\\\\/gm;
    $result =~ s/\\\\\s+\[/ \[/g;
       $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
       #conversion of html characters to LaTeX equivalents
       if ($result =~ m/&(\w+|#\d+);/) {
    $result = &character_chart($result);
       }
       $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
       $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
   
       return $result;
   }
   
   
   sub index_table {
       my $currentURL = shift;
       my $insex_string='';
       $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
       $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
       return $insex_string;
   }
   
   
   sub IndexCreation {
       my ($texversion,$currentURL)=@_;
       my @key_words=split(/,/,&index_table($currentURL));
       my $chunk='';
       my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
       if ($st>0) {
    for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
    $chunk=substr($texversion,0,$st+1);
    substr($texversion,0,$st+1)=' ';
       }
       foreach my $key_word (@key_words) {
    if ($key_word=~/\S+/) {
       $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
    }
       }
       if ($st>0) {substr($texversion,0,1)=$chunk;}
       return $texversion;
   }
   
   sub print_latex_header {
       my $mode=shift;
       my $output='\documentclass[letterpaper]{article}';
       if ($mode eq 'batchmode') {
    $output.='\batchmode';
       }
       $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'.
        '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'.
        '\usepackage[dvips]{graphicx}\usepackage{epsfig}\usepackage{calc}'.
        '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'.
        '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'.
        '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'.
        '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'.
        '\setlength{\abovedisplayshortskip}{-0.04in}'.
        '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
        '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'.
        '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'.
        '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'.
        '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'.
        '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'.
        '\setlength{\abovedisplayshortskip}{-0.04in}'.
        '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}';
       return $output;     
   }
   
   sub path_to_problem {
       my ($urlp,$LaTeXwidth)=@_;
       my $newurlp = '';
       $LaTeXwidth=~s/\s*mm\s*$//;
       my $HowMany = length($urlp)*2;
       if ($HowMany > $LaTeXwidth) {
    my @temporrary = split '/',$urlp;
    my $HowManyNew = 0;
    for (my $ii=0;$ii<=$#temporrary;$ii++) {
       if ($temporrary[$ii] ne '') {
    $HowManyNew += length($temporrary[$ii])*2;
    if ($HowManyNew < $LaTeXwidth ) {
       $newurlp .=  '/'.$temporrary[$ii];
    } else {
       $HowManyNew = 0;
       $newurlp .=  '|\vskip -1 mm \noindent \verb|';
       $ii--;
    }
       }
    }
       } else {
    $newurlp=$urlp;
       }
       return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
   }
   
 sub output_data {  sub output_data {
     my $r = shift;      my ($r,$helper,$rparmhash) = @_;
       my %parmhash = %$rparmhash;
       my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
     $r->print(<<ENDPART);      $r->print(<<ENDPART);
 <html>  <html>
   <script type="text/javascript" language="Javascript" >
       var editbrowser;
       function openbrowser(formname,elementname,only,omit) {
           var url = '/res/?';
           if (editbrowser == null) {
               url += 'launch=1&';
           }
           url += 'catalogmode=interactive&';
           url += 'mode=parmset&';
           url += 'form=' + formname + '&';
           if (only != null) {
               url += 'only=' + only + '&';
           } 
           if (omit != null) {
               url += 'omit=' + omit + '&';
           }
           url += 'element=' + elementname + '';
           var title = 'Browser';
           var options = 'scrollbars=1,resizable=1,menubar=0';
           options += ',width=700,height=600';
           editbrowser = open(url,title,options,'1');
           editbrowser.focus();
       }
   </script>
 <head>  <head>
 <title>LON-CAPA output for printing</title>  <title>LON-CAPA output for printing</title>
 </head>  </head>
 <body bgcolor="FFFFFF">  $bodytag
 <hr>  Please stand by while processing your print request, this may take some time ...
 ENDPART  ENDPART
   
     my $choice = $ENV{'form.choice'};      my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
     my $result = '';      my ($result,$selectionmade) = ('','');
     my %mystyle;      my $number_of_columns = 1; #used only for pages to determine the width of the cell
     my $filename;      my @temporary_array=split /\|/,$format_from_helper;
       my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
       if ($laystyle eq 'L') {
    $laystyle='album';
       } else {
    $laystyle='book';
       }
       my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
       my $assignment =  $ENV{'form.assignment'};
       my $LaTeXwidth; 
       if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
    $LaTeXwidth = $1*10;
       } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
    $LaTeXwidth = $1;
       } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
    $LaTeXwidth = $1*25.4;
       }
       $LaTeXwidth.=' mm';
       my @print_array=();
       
       if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
         #-- single document - problem, page, html, xml, ...
    my $currentURL;
    if ($helper->{'VARS'}->{'construction'} ne '1') {
               #prints published resource
       $currentURL=$helper->{'VARS'}->{'postdata'};
    } else {
               #prints resource from the construction space
       $currentURL='/'.$helper->{'VARS'}->{'filename'};
       if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
    }
    $selectionmade = 1;
    if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
       my $rndseed=time;
       my $texversion='';
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
    my %moreenv;
    $moreenv{'request.filename'}=$currentURL;
    if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
       $moreenv{'construct.style'}=$helper->{'VARS'}->{'style_file'};
       my $dom = $ENV{'user.domain'};
       my $user = $ENV{'user.name'};
       my $put_result = &Apache::lonnet::put('environment',{'construct.style'=>$helper->{'VARS'}->{'style_file'}},$dom,$user);
    }
    my %form;
    $form{'grade_target'}='tex';
    $form{'textwidth'}=$LaTeXwidth;
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    if ($helper->{'VARS'}->{'curseed'}) {
       $rndseed=$helper->{'VARS'}->{'curseed'};
    }
    $form{'rndseed'}=$rndseed;
    &Apache::lonnet::appenv(%moreenv);
    &Apache::lonnet::delenv('form.counter');
    &Apache::lonxml::init_counter();
    $texversion=&Apache::lonnet::ssi($currentURL,%form);
    &Apache::lonnet::delenv('form.counter');
    &Apache::lonnet::delenv('request.filename');
       }
       if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
          ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
    my %form;
    $form{'grade_target'}='answer';
    $form{'answer_output_mode'}='tex';
    $form{'rndseed'}=$rndseed;
    my $answer=&Apache::lonnet::ssi($currentURL,%form);
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
    } else {
       $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
       if ($helper->{'VARS'}->{'construction'} ne '1') {
    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
    $texversion.=&path_to_problem ($currentURL,$LaTeXwidth);
       } else {
    $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
    my $URLpath=$currentURL;
    $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
    $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
       }
       $texversion.='\vskip 1 mm '.$answer.'\end{document}';
    }
       }
       if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
    $texversion=&IndexCreation($texversion,$currentURL);
       }
       if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
   
     if ($choice eq 'Standard LaTeX output for current document') {      }
         my $access=&Apache::lonnet::allowed('bre',$ENV{'form.url'});      $result .= $texversion;
  if (($access ne '2') && ($access ne 'F')) {      if ($currentURL=~m/\.page\s*$/) {
   $ENV{'user.error.msg'}="$ENV{'form.url'}:bre:1:1:Access Denied";   ($result,$number_of_columns) = &page_cleanup($result);
   return HTTP_NOT_ACCEPTABLE;      }
  }          } elsif ($currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
  my $file=&Apache::lonnet::filelocation("",$ENV{'form.url'});              #printing content of sequence from the construction space
  my $filecontents=&Apache::lonnet::getfile($file);      my $flag_latex_header_remove = 'NO'; 
  $result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);      my $rndseed=time;
     } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {      if ($helper->{'VARS'}->{'curseed'}) {
  my @master_seq = ();   $rndseed=$helper->{'VARS'}->{'curseed'};
  my $keyword = 0;      }
  my $output_seq = '';      $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
  my $current_file = '/res/'.$ENV{'request.ambiguous'};      my $errtext=&Apache::lonratedt::mapread($currentURL);
         $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;      for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
  while ($current_file ne '') {   $Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
     my $file=&Apache::lonnet::filelocation("",$current_file);   my $urlp=$2;
     my $filecontents=&Apache::lonnet::getfile($file);   if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
     my @file_seq = &content_map($filecontents);      my $texversion='';
     if (defined @file_seq) {      if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
 #-- adding an additional array to the master one   my %form;
  if (defined @master_seq) {   $form{'grade_target'}='tex';
                     my $old_value = $#master_seq;   $form{'textwidth'}=$LaTeXwidth;
     my $total_value = $#master_seq + $#file_seq +2;   $form{'problem_split'}=$parmhash{'problem_stream_switch'};
                     for (my $j=0; $j<=$old_value-$keyword+1; $j++) {   $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
  $master_seq[$total_value-$j] = $master_seq[$old_value-$j];   $form{'rndseed'}=$rndseed;
    $texversion=&Apache::lonnet::ssi($urlp,%form);
       }
       if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
          ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) && 
          ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
    my %form;
    $form{'grade_target'}='answer';
    $form{'answer_output_mode'}='tex';
    $form{'rndseed'}=$rndseed;
                           if ($urlp=~/\/res\//) {$ENV{'request.state'}='published';}
    my $answer=&Apache::lonnet::ssi($urlp,%form);
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
    } else {
       $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
       $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
       $texversion.=&path_to_problem ($currentURL,$LaTeXwidth);
       $texversion.='\vskip 1 mm '.$answer.'\end{document}';
    }
       }
       if ($flag_latex_header_remove ne 'NO') {
    $texversion = &latex_header_footer_remove($texversion);
       } else {
    $texversion =~ s/\\end{document}//;
       }
       if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
    $texversion=&IndexCreation($texversion,$urlp);
     }      }
                     for (my $j=0; $j<=$#file_seq; $j++){      if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
  $master_seq[$keyword+$j] = $file_seq[$j];   $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
     }      }
     @file_seq = ();      $result.=$texversion;
     $keyword = 0;      $flag_latex_header_remove = 'YES';
    } elsif ($urlp=~/\.(sequence|page)$/) {
       $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
    }  
       }
       if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
       $result .= '\end{document}';   
    } elsif ($currentURL=~/\/smppg$/) { 
    my %form;
    $form{'grade_target'}='tex';
    $form{'textwidth'}=$LaTeXwidth;
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    my $texversion=&Apache::lonnet::ssi($currentURL,%form);
    $result .= $texversion;
    } else {
     $result.='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
     if ($currentURL=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
         $result.=$1;
     } elsif ($currentURL=~/\/ext\//) {
         $result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
     } else {
         $result.=$currentURL;
     }
     $result.=' \end{document}'
    }
       } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
                ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
                ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) { 
           #-- produce an output string
    my %form=();   
    $form{'grade_target'}='tex';
    $form{'textwidth'}=$LaTeXwidth;
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    my $flag_latex_header_remove = 'NO';
    my $flag_page_in_sequence = 'NO';
    my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
    my $prevassignment='';
    &Apache::lonnet::delenv('form.counter');
    &Apache::lonxml::init_counter();
    for (my $i=0;$i<=$#master_seq;$i++) {
       my (undef,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
       $urlp=&Apache::lonnet::clutter($urlp);
       if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
    $selectionmade = 2;
       } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
    $selectionmade = 3;
       } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
    $selectionmade = 4;
       } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
    $selectionmade = 7;
       }
       $form{'symb'}=$master_seq[$i];
       my ($sequence)=&Apache::lonnet::decode_symb($master_seq[$i]);
       my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #tittle of the assignment which contains this problem
       if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
       if ($i==0) {$prevassignment=$assignment;}
       #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
       my $texversion.=&Apache::lonnet::ssi($urlp,%form);
       if ($urlp=~/\.page$/) {
    ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
    if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
    $texversion =~ s/\\end{document}\d*/\\end{document}/;
    $flag_page_in_sequence = 'YES';
       } 
       my $lonidsdir=$r->dir_config('lonIDsDir');
       my $envfile=$ENV{'user.environment'};
       $envfile=~/\/([^\/]+)\.id$/;
               $envfile=$1;
       &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
       my $current_counter=$ENV{'form.counter'};
       if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
          ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
    my %form;
    $form{'grade_target'}='answer';
    $form{'answer_output_mode'}='tex';
    my $answer=&Apache::lonnet::ssi($urlp,%form);
                   &Apache::lonnet::appenv(('form.counter' => $current_counter));
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
  } else {   } else {
     @master_seq = @file_seq;      if ($urlp=~/\.(problem|exam|quiz|library)$/) {
                     @file_seq = ();   $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
    $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($urlp).'}\vskip 0 mm ';
    $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
    $texversion.='\vskip 1 mm '.$answer;
       } else {
    $texversion='';
       }
  }   }
     }       }
 #-- checking wether .sequence file is among the set of files      if ($flag_latex_header_remove ne 'NO') {
     $current_file = '';   $texversion = &latex_header_footer_remove($texversion);
     for (my $i=0; $i<=$#file_seq; $i++) {      } else {
  $_ = $file_seq[$i];   $texversion =~ s/\\end{document}//;
  if (m/(.*)\.sequence/) {      }
     $current_file = $_;      if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
     $keyword = $i;   $texversion=&IndexCreation($texversion,$urlp);
     last;      }
       if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
    my $name = &get_name();
    my $courseidinfo = &get_course();
    if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
    $prevassignment=$assignment;
    $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip -5 mm ';
       }
       $result .= $texversion;
       $flag_latex_header_remove = 'YES';   
    }
    &Apache::lonnet::delenv('form.counter');
    if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}
    $result .= '\end{document}';
        } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') || ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')) { 
        #-- prints assignments for whole class or for selected students  
    if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
        $selectionmade=5;
    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
        $selectionmade=8;
    }
    my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
            if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0') {$helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;}
    my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
    #loop over students
    my $flag_latex_header_remove = 'NO'; 
    my %moreenv;
    $moreenv{'form.textwidth'}=$LaTeXwidth;
    &Apache::lonnet::appenv(%moreenv);
    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
    my $student_counter=-1;
    foreach my $person (@students) {
        $student_counter++;
       my $current_output = ''; 
       my ($username,$userdomain,$usersection) = split /:/,$person;
       my $fullname = &get_name($username,$userdomain);
   
       if ($parmhash{'anonymous_quiz'}=~/yes/) {$fullname=' ';} #put here something reasonable for anonymous exams or quiz
               #goes through all resources, checks if they are available for current student, and produces output   
       &Apache::lonnet::delenv('form.counter');
       &Apache::lonxml::init_counter();
       foreach my $curresline (@master_seq)  {
    if ((($curresline=~ m/\.(problem|exam|quiz|assess|survey|form|library)$/) && ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students')) || ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')) {
       my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
       if (&Apache::lonnet::allowed('bre',$res_url)) {
    my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,
                                                                           $ENV{'request.course.id'},'tex');
    my $lonidsdir=$r->dir_config('lonIDsDir');
    my $envfile=$ENV{'user.environment'};
    $envfile=~/\/([^\/]+)\.id$/;
    $envfile=$1;
    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$envfile);
    my $current_counter=$ENV{'form.counter'};
    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
      ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
       my %form;
       $form{'answer_output_mode'}='tex';
       $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
       my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$ENV{'request.course.id'},%form);
       &Apache::lonnet::appenv(('form.counter' => $current_counter));
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
    $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
       } else {
    $rendered=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
    $rendered.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
    $rendered.=&path_to_problem ($curresline,$LaTeXwidth);
    $rendered.='\vskip 1 mm '.$ansrendered;
       }
    }
    if ($flag_latex_header_remove eq 'YES') {
       $rendered = &latex_header_footer_remove($rendered);
    } else {
       $rendered =~ s/\\end{document}//;
    }
    $current_output .= $rendered;
       }
       $flag_latex_header_remove = 'YES';
  }   }
     }              }
       my $courseidinfo = &get_course();
       if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
               if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
       my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
       if ($current_output=~/\\documentclass/) {
    $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}}\\vskip 3 mm /;
       } else {
    my $blanspages = '';
    for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
    $current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$currentassignment.'}}} \vskip -5 mm '.$current_output;
       }
               $print_array[int($student_counter/$helper->{'VARS'}->{'NUMBER_TO_PRINT'})].=$current_output;
       &Apache::lonnet::delenv('form.counter');    
       &Apache::lonxml::init_counter(); 
       &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
        &mt('last student').' '.$fullname);
  }   }
 #-- produce an output string   &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
  for (my $i=0;$i<=$#master_seq;$i++) {   $result .= $print_array[0].'  \end{document}';
     $_ = $master_seq[$i];   &Apache::lonnet::delenv('form.textwidth');
     m/\"(.*)\"/;      } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
     if (index($1,'-tc.xml',0)==-1) {      #prints selected problems from the subdirectory 
  my $file=&Apache::lonnet::filelocation("",$1);   $selectionmade = 6;
  my $filecontents=&Apache::lonnet::getfile($file);          my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
  $output_seq .= $filecontents;   @list_of_files=sort @list_of_files;
    my $flag_latex_header_remove = 'NO'; 
    my $rndseed=time;
    if ($helper->{'VARS'}->{'curseed'}) {
       $rndseed=$helper->{'VARS'}->{'curseed'};
    }
    for (my $i=0;$i<=$#list_of_files;$i++) {
       my $urlp = $list_of_files[$i];
       $urlp=~s|//|/|;
       if ($urlp=~/\//) {
    my %form;
    $form{'grade_target'}='tex';
    $form{'textwidth'}=$LaTeXwidth;
    $form{'rndseed'}=$rndseed;
    if ($urlp =~ m|/home/([^/]+)/public_html|) {
       $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
    } else {
       $urlp =~ s|^/home/httpd/html||;
    }
    my $texversion=&Apache::lonnet::ssi($urlp,%form);
    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
      ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
       my %form;
       $form{'grade_target'}='answer';
       $form{'answer_output_mode'}='tex';
       $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
       $form{'rndseed'}=$rndseed;
       my $answer=&Apache::lonnet::ssi($urlp,%form);
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
       } else {
    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
    if ($helper->{'VARS'}->{'construction'} ne '1') {
       $texversion.='\vskip 0 mm \noindent ';
       $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
    } else {
       $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
       my $URLpath=$urlp;
       $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
       $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
    }
    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
       }
    }
                   #this chunck is responsible for printing the path to problem
    my $newurlp=$urlp;
    if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
    $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
    $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
       $texversion=&IndexCreation($texversion,$urlp);
    }
    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
       $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
       
    }
    $result .= $texversion;
     }      }
       $flag_latex_header_remove = 'YES';  
  }   }
 #-- cleanup of output string (temporary cbi-specific)   if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
  $output_seq =~ s/<physnet>//g;   $result .= '\end{document}';      
  $output_seq =~ s/<\/physnet>//g;      }
  $output_seq = '<physnet>'.$output_seq.' </physnet>';  #-------------------------------------------------------- corrections for the different page formats
 #-- final accord      $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'});
  $result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);      $result = &latex_corrections($number_of_columns,$result);
       for (my $i=1;$i<=$#print_array;$i++) {$print_array[$i] = &latex_corrections($number_of_columns,$print_array[$i]);}
       #changes page's parameters for the one column output 
       if ($numberofcolumns == 1) {
    $result =~ s/\\textwidth\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
    $result =~ s/\\textheight\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
    $result =~ s/\\evensidemargin\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
    $result =~ s/\\oddsidemargin\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
     }      }
 #-- writing .tex file in prtspool   #-- writing .tex file in prtspool 
  {      my $temp_file;
       my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
       unless ($temp_file = Apache::File->new('>'.$filename)) {
    $r->log_error("Couldn't open $filename for output $!");
    return SERVER_ERROR; 
       }
       print $temp_file $result;
       my $begin=index($result,'\begin{document}',0);
       my $inc=substr($result,0,$begin+16);
       if ($#print_array>0) {
           for (my $i=1;$i<=$#print_array;$i++) {
               my $anobegin=index($print_array[$i],'\setcounter{page}',0);
       substr($print_array[$i],0,$anobegin)='';
       $print_array[$i]=$inc.$print_array[$i].'\end{document}';
     my $temp_file;      my $temp_file;
     $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";      my $newfilename=$filename;
     unless ($temp_file = Apache::File->new('>'.$filename)) {      $newfilename =~s/\.tex$/_add$i\.tex/; 
  $r->log_error("Couldn't open $filename for output $!");      unless ($temp_file = Apache::File->new('>'.$newfilename)) {
    $r->log_error("Couldn't open $newfilename for output $!");
  return SERVER_ERROR;    return SERVER_ERROR; 
     }       }
  print $temp_file $result;      print $temp_file $print_array[$i];
  }   }
   
       }
   
       my $identifier = time.'_'.int(rand(1000));
       &Apache::lonnet::appenv('cgi.'.$identifier.'.file'   => $filename,
                               'cgi.'.$identifier.'.layout'  => $laystyle,
                               'cgi.'.$identifier.'.numcol'  => $numberofcolumns,
                               'cgi.'.$identifier.'.selection' => $selectionmade,
       'cgi.'.$identifier.'tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
       'cgi.'.$identifier.'tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
       'cgi.'.$identifier.'role' => $ENV{'request.role.adv'},
                               'cgi.'.$identifier.'numberoffiles' => $#print_array);
    
   
 $r->print(<<FINALEND);  $r->print(<<FINALEND);
 <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">  <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier">
 </body>  </body>
 </html>  </html>
 FINALEND  FINALEND
Line 153  FINALEND Line 1162  FINALEND
   
   
   
   sub handler {
   
       my $r = shift;
       my $helper;
   
 sub content_map {  #    my $loaderror=&Apache::lonnet::overloaderror($r);
 #-- find a list of files to print  #    if ($loaderror) { return $loaderror; }
     my $map_string = shift;  #    $loaderror=
     my @number_seq = ();  #       &Apache::lonnet::overloaderror($r,
     my @file_seq = ();  #         $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
     my $startlink = index($map_string,'<link',0);  #    if ($loaderror) { return $loaderror; }
     my $endlink = index($map_string,'</link>',$startlink);  
     my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);      my $result = printHelper($r);
     $_ = $chunk;      if (!ref($result)) {
     m/from=\"(\d+)\"/;   return $result;
     push @number_seq,$1;  
     while ($startlink != -1) {  
  $endlink = index($map_string,'</link>',$startlink);  
  $chunk = substr($map_string,$startlink,$endlink-$startlink+7);  
  substr($map_string,$startlink,$endlink-$startlink+7) = '';  
  $_ = $chunk;  
         m/to=\"(\d+)\"/;  
  push @number_seq,$1;  
  $startlink = index($map_string,'<link from="'.$1.'"',$startlink);  
     }  
     my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);  
     while ($stalink != -1) {  
  $startlink = rindex($map_string,'<link ',$stalink);  
  $endlink = index($map_string,'</link>',$startlink);  
  $chunk = substr($map_string,$startlink,$endlink-$startlink+7);  
  substr($map_string,$startlink,$endlink-$startlink+7) = '';  
  $_ = $chunk;  
         m/from=\"(\d+)\"/;  
  unshift @number_seq,$1;  
  $stalink = index($map_string,' to="'.$number_seq[0].'"',0);  
     }  
     for (my $i=0;$i<=$#number_seq;$i++) {  
  $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);  
  $startlink = index($map_string,'src="',$stalink);  
  $startlink = index($map_string,'"',$startlink);  
  $endlink = index($map_string,'"',$startlink+1);  
  $chunk = substr($map_string,$startlink,$endlink-$startlink+1);  
  push @file_seq,$chunk;  
     }      }
     return @file_seq;      $helper = $result;
 }     
   # my $key; 
   # foreach $key (keys %{$helper->{'VARS'}}) {
   #    $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
   # }
   # foreach $key (keys %ENV) {
   #    $r->print(' '.$key.'->'.$ENV{$key}.'<-<br />');
   # }
   # return OK;
   
       my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
       
   # my $key; 
   # foreach $key (keys %parmhash) {
   #    $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
   # }
   # return OK;
   
       &output_data($r,$helper,\%parmhash);
       return OK;
   } 
   
   use Apache::lonhelper;
   
 sub handler {  sub addMessage {
       my $text = shift;
       my $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{MESSAGE_TEXT} = $text;
       Apache::lonhelper::message->new();
   }
   
   use Data::Dumper;
   
   sub printHelper {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');  
       if ($ENV{'request.course.id'}) {
    my $fn=$ENV{'request.course.fn'};
    tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
       }
   
       if ($r->header_only) {
           if ($ENV{'browser.mathml'}) {
               &Apache::loncommon::content_type($r,'text/xml');
           } else {
               &Apache::loncommon::content_type($r,'text/html');
           }
           $r->send_http_header;
           return OK;
       }
   
       # Send header, nocache
       if ($ENV{'browser.mathml'}) {
           &Apache::loncommon::content_type($r,'text/xml');
       } else {
           &Apache::loncommon::content_type($r,'text/html');
       }
       &Apache::loncommon::no_cache($r);
     $r->send_http_header;      $r->send_http_header;
       $r->rflush();
   
 #-- start form      # Unfortunately, this helper is so complicated we have to
     &headerform($r);      # write it by hand
 #-- menu for output  
     unless ($ENV{'form.phase'}) {  
  &menu_for_output($r);  
     }  
 #-- core part   
     if ($ENV{'form.phase'} eq 'two') {  
  &output_data($r);  
   
       Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
       
       my $helper = Apache::lonhelper::helper->new("Printing Helper");
       $helper->declareVar('symb');
       $helper->declareVar('postdata');    
       $helper->declareVar('curseed');    
       $helper->declareVar('filename');
       $helper->declareVar('construction');
       $helper->declareVar('assignment');
       $helper->declareVar('style_file');
       
       # This will persistently load in the data we want from the
       # very first screen.
       # Detect whether we're coming from construction space
       if ($ENV{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
           $helper->{VARS}->{'filename'} = "~$1/$2";
           $helper->{VARS}->{'construction'} = 1;
       } else {
           if ($ENV{'form.postdata'}) {
               $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
           }
           if ($ENV{'form.symb'}) {
               $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
           }
           if ($ENV{'form.url'}) {
               $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
           }
       }
   
       if ($ENV{'form.symb'}) {
           $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
       }
       if ($ENV{'form.url'}) {
           $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
   
       }
       
       my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
       if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
   
       
       # Extract map
       my $symb = $helper->{VARS}->{'symb'};
       my ($map, $id, $url);
       my $subdir;
   
       # Get the resource name from construction space
       if ($helper->{VARS}->{'construction'}) {
           $resourceTitle = substr($helper->{VARS}->{'filename'}, 
                                   rindex($helper->{VARS}->{'filename'}, '/')+1);
           $subdir = substr($helper->{VARS}->{'filename'},
                            0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
       } else {
           ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
           $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
   
           if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
               my $postdata = $helper->{VARS}->{'postdata'};
               $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
           }
           $subdir = &Apache::lonnet::filelocation("", $url);
     }      }
       if (!$helper->{VARS}->{'curseed'} && $ENV{'form.curseed'}) {
    $helper->{VARS}->{'curseed'}=$ENV{'form.curseed'};
       }
   
       my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
       my $userPriviledged = ($ENV{'request.role'}=~m/^cc\./ or
      $ENV{'request.role'}=~m/^in\./ or
      $ENV{'request.role'}=~m/^ta\./);
   
       Apache::lonhelper::registerHelperTags();
   
       # "Delete everything after the last slash."
       $subdir =~ s|/[^/]+$||;
       if (not $helper->{VARS}->{'construction'}) {
    $subdir='/home/httpd/html/res/'.$subdir;
       }
       # "Remove all duplicate slashes."
       $subdir =~ s|/+|/|g;
   
       # What can be printed is a very dynamic decision based on
       # lots of factors. So we need to dynamically build this list.
       # To prevent security leaks, states are only added to the wizard
       # if they can be reached, which ensures manipulating the form input
       # won't allow anyone to reach states they shouldn't have permission
       # to reach.
   
       # printChoices is tracking the kind of printing the user can
       # do, and will be used in a choices construction later.
       # In the meantime we will be adding states and elements to
       # the helper by hand.
       my $printChoices = [];
       my $paramHash;
   
       if ($resourceTitle) {
           push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (what you just saw on the screen)", 'current_document', 'PAGESIZE'];
       }
   
   #    $r->print($helper->{VARS}->{'postdata'});
   
       # Useful filter strings
       my $isProblem = '$res->is_problem()';
       $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
       my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
       my $isNotMap = '!$res->is_map()';
       $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
       my $isMap = '$res->is_map()';
       my $symbFilter = '$res->symb()';
       my $urlValue = '$res->src()';
   
       $helper->declareVar('SEQUENCE');
   
       # Useful for debugging: Dump the help vars
       #$r->print(Dumper($helper->{VARS}));
       #$r->print($map);
   
       # If we're in a sequence...
       if (($helper->{'VARS'}->{'construction'} ne '1') &&
    $helper->{VARS}->{'postdata'} &&
    $helper->{VARS}->{'assignment'}) {
           # Allow problems from sequence
           push @{$printChoices}, ["<b>Problems</b> in <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
           # Allow all resources from sequence
           push @{$printChoices}, ["<b>Resources</b> in <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
   
           my $helperFragment = <<HELPERFRAGMENT;
     <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
       <message>(mark them then click "next" button) <br /></message>
       <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
         <nextstate>PAGESIZE</nextstate>
         <filterfunc>return $isProblem;</filterfunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       </state>
   
     <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
       <message>(mark them then click "next" button) <br /></message>
       <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
         <nextstate>PAGESIZE</nextstate>
         <filterfunc>return $isNotMap;</filterfunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       </state>
   HELPERFRAGMENT
   
           &Apache::lonxml::xmlparse($r, 'helper', $helperFragment); 
       }
   
       # If the user is priviledged, allow them to print all 
       # problems in the course, optionally for selected students
       if ($userPriviledged && ($helper->{VARS}->{'postdata'}=~/\/res\//)) { 
           push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
    if ($helper->{VARS}->{'assignment'}) {
       push @{$printChoices}, ["<b>Problems</b> from <b><i>$sequenceTitle</i></b> for <b>selected students</b>", 'problems_for_students', 'CHOOSE_STUDENTS'];
    }
           &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
     <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
       <message>(mark them then click "next" button) <br /></message>
       <resource variable="RESOURCES" multichoice="1"
    suppressEmptySequences='1' addstatus="1">
         <nextstate>PAGESIZE</nextstate>
         <filterfunc>return $isProblemOrMap;</filterfunc>
         <choicefunc>return $isProblem;</choicefunc>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       </state>
   
     <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
       <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
       <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
       <resource variable="RESOURCES" multichoice="1" addstatus="1">
         <filterfunc>return $isProblem;</filterfunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
       <choices variable="EMPTY_PAGES">
         <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
         <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
         <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
         <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
         </choices>
       </state>
   CHOOSE_STUDENTS
   
    addMessage("<hr width='33%' /><b>Number of assignments printed at the same time: </b>");
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'NUMBER_TO_PRINT';   
    $helper->declareVar('NUMBER_TO_PRINT');         
    addMessage("<input type='text' name='NUMBER_TO_PRINT.forminput' size='3' value='0' /><hr width='33%' />");
   
    if ($helper->{VARS}->{'assignment'}) {
       push @{$printChoices}, ["<b>Resources</b> from <b><i>$sequenceTitle</i></b> for <b>selected students</b>", 'resources_for_students', 'CHOOSE_STUDENTS1'];
    }
    &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
     <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
       <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
       <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
       <resource variable="RESOURCES" multichoice="1" addstatus="1">
         <filterfunc>return $isNotMap;</filterfunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
       <choices variable="EMPTY_PAGES">
         <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
         <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
         <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
         <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
         </choices>
       </state>
   CHOOSE_STUDENTS1
   
     addMessage("<hr width='33%' /><b>Number of assignments printed at the same time: </b>");
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'NUMBER_TO_PRINT';   
    $helper->declareVar('NUMBER_TO_PRINT');         
    addMessage("<input type='text' name='NUMBER_TO_PRINT.forminput' size='3' value='0' /><hr width='33%' />");
       }
   
       # FIXME: That RE should come from a library somewhere.
       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 $subdir ne '/home/httpd/html/res/') {    
           push @{$printChoices}, ["<b>Problems</b> from current subdirectory <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
   
           my $f = '$filename';
           my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
     <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
       <message>(mark them then click "next" button) <br /></message>
       <files variable="FILES" multichoice='1'>
         <nextstate>PAGESIZE</nextstate>
         <filechoice>return '$subdir';</filechoice>
   CHOOSE_FROM_SUBDIR
           
           # this is broken up because I really want interpolation above,
           # and I really DON'T want it below
           $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
         <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
     $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
         </filefilter>
         </files>
       </state>
   CHOOSE_FROM_SUBDIR
           &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
       }
   
       # Allow the user to select any sequence in the course, feed it to
       # another resource selector for that sequence
       if (!$helper->{VARS}->{'construction'}) {
    push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
         'select_sequences', 'CHOOSE_SEQUENCE'];
    my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
    #Escape apostrophes and backslashes for Perl
    $escapedSequenceName =~ s/\\/\\\\/g;
    $escapedSequenceName =~ s/'/\\'/g;
    &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
     <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
       <message>Select the sequence to print resources from:</message>
       <resource variable="SEQUENCE">
         <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
         <filterfunc>return \$res->is_sequence;</filterfunc>
         <valuefunc>return $urlValue;</valuefunc>
         </resource>
       </state>
     <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
       <message>(mark desired resources then click "next" button) <br /></message>
       <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
         <nextstate>PAGESIZE</nextstate>
         <filterfunc>return $isProblem</filterfunc>
         <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         </resource>
       </state>
   CHOOSE_FROM_ANY_SEQUENCE
   }
   
       # Generate the first state, to select which resources get printed.
       Apache::lonhelper::state->new("START", "Select Printing Options:");
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{MESSAGE_TEXT} = "";
       Apache::lonhelper::message->new();
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = 'PRINT_TYPE';
       $helper->declareVar('PRINT_TYPE');
       $paramHash->{CHOICES} = $printChoices;
       Apache::lonhelper::choices->new();
   
       my $startedTable = 0; # have we started an HTML table yet? (need
                             # to close it later)
   
       if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
    ($helper->{VARS}->{'construction'} eq '1')) {
    addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'ANSWER_TYPE';   
    $helper->declareVar('ANSWER_TYPE');         
           $paramHash->{CHOICES} = [
                                      ['Without Answers', 'yes'],
                                      ['With Answers', 'no'],
                                      ['Only Answers', 'only'] ];
           Apache::lonhelper::dropdown->new();
    addMessage("</td></tr>");
    $startedTable = 1;
       }
   
       if ($ENV{'request.role.adv'}) {
    if (!$startedTable) {
       addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
       $startedTable = 1;
    } else {
       addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
    }
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'LATEX_TYPE';   
    $helper->declareVar('LATEX_TYPE');  
    if ($helper->{VARS}->{'construction'} eq '1') {       
       $paramHash->{CHOICES} = [
        ['standard LaTeX mode', 'standard'], 
        ['LaTeX batchmode', 'batchmode'], ];
    } else {
       $paramHash->{CHOICES} = [
        ['LaTeX batchmode', 'batchmode'],
        ['standard LaTeX mode', 'standard'] ];
    }
           Apache::lonhelper::dropdown->new();
    
    addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'TABLE_CONTENTS';   
    $helper->declareVar('TABLE_CONTENTS');         
           $paramHash->{CHOICES} = [
                                      ['No', 'no'],
                                      ['Yes', 'yes'] ];
           Apache::lonhelper::dropdown->new();
    addMessage("</td></tr>");
           
    if (not $helper->{VARS}->{'construction'}) {
       addMessage("<tr><td align='right'>Print Index: </td><td>");
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = 'TABLE_INDEX';   
       $helper->declareVar('TABLE_INDEX');         
       $paramHash->{CHOICES} = [
        ['No', 'no'],
        ['Yes', 'yes'] ];
       Apache::lonhelper::dropdown->new();
       addMessage("</td></tr>");
    }
   
    if ($helper->{'VARS'}->{'construction'}) { 
       my $stylevalue=$ENV{'construct.style'};
       my $xmlfrag .= <<"RNDSEED";
       <message><tr><td align='right'>Use random seed: </td><td></message>
       <string variable="curseed" size="15" maxlength="15">
    <defaultvalue>
               return $helper->{VARS}->{'curseed'};
           </defaultvalue>
       </string>
        <message></td></tr><tr><td align="right">Use style file:</td><td></message>
                <message><input type="text" size="40" name="style_file_value" value="$stylevalue"  />&nbsp; <a href="javascript:openbrowser('helpform','style_file','sty')">Select style file</a> </td><td></message>
                <message></td></tr></message>
   RNDSEED
               &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
       $helper->{'VARS'}->{'style_file'}=$ENV{'form.style_file_value'};
    }
       }
   
   
   
   
       if ($startedTable) {
    addMessage("</table>");
       }
   
       Apache::lonprintout::page_format_state->new("FORMAT");
   
       # Generate the PAGESIZE state which will offer the user the margin
       # choices if they select one column
       Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
       Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
   
   
       $helper->process();
   
       # MANUAL BAILOUT CONDITION:
       # If we're in the "final" state, bailout and return to handler
       if ($helper->{STATE} eq 'FINAL') {
           return $helper;
       }    
   
       $r->print($helper->display());
   
       Apache::lonhelper::unregisterHelperTags();
   
       untie %hash;
   
     return OK;      return OK;
   }
   
 }   
   
 1;  1;
 __END__  
   
   package Apache::lonprintout::page_format_state;
   
   =pod
   
   =head1 Helper element: page_format_state
   
   See lonhelper.pm documentation for discussion of the helper framework.
   
   Apache::lonprintout::page_format_state is an element that gives the 
   user an opportunity to select the page layout they wish to print 
   with: Number of columns, portrait/landscape, and paper size. If you 
   want to change the paper size choices, change the @paperSize array 
   contents in this package.
   
   page_format_state is always directly invoked in lonprintout.pm, so there
   is no tag interface. You actually pass parameters to the constructor.
   
   =over 4
   
   =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
   
   =back
   
   =cut
   
   use Apache::lonhelper;
   
   no strict;
   @ISA = ("Apache::lonhelper::element");
   use strict;
   use Apache::lonlocal;
   
   my $maxColumns = 2;
   my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]", 
                    "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
                    "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]", 
                    "A5 [148x210 mm]", "A6 [105x148 mm]" );
   
   # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
   #                   Paper type
   
   sub new { 
       my $self = Apache::lonhelper::element->new();
   
       shift;
   
       $self->{'variable'} = shift;
       my $helper = Apache::lonhelper::getHelper();
       $helper->declareVar($self->{'variable'});
       bless($self);
       return $self;
   }
   
   sub render {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
       my $result = '';
       my $var = $self->{'variable'};
       my $PageLayout=&mt('Page layout');
       my $NumberOfColumns=&mt('Number of columns');
       my $PaperType=&mt('Paper type');
       $result .= <<STATEHTML;
   
   <hr width="33%" />
   <table cellpadding="3">
     <tr>
       <td align="center"><b>$PageLayout</b></td>
       <td align="center"><b>$NumberOfColumns</b></td>
       <td align="center"><b>$PaperType</b></td>
     </tr>
     <tr>
       <td>
         <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
         <input type="radio" name="${var}.layout" value="P" checked='1'  /> Portrait
       </td>
       <td align="center">
         <select name="${var}.cols">
   STATEHTML
   
       my $i;
       for ($i = 1; $i <= $maxColumns; $i++) {
           if ($i == 2) {
               $result .= "<option value='$i' selected>$i</option>\n";
           } else {
               $result .= "<option value='$i'>$i</option>\n";
           }
       }
   
       $result .= "</select></td><td>\n";
       $result .= "<select name='${var}.paper'>\n";
   
       $i = 0;
       foreach (@paperSize) {
           if ($i == 0) {
               $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
           } else {
               $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
           }
           $i++;
       }
   
       $result .= "</select></td></tr></table>";
       return $result;
   }
   
   sub postprocess {
       my $self = shift;
   
       my $var = $self->{'variable'};
       my $helper = Apache::lonhelper->getHelper();
       $helper->{VARS}->{$var} = 
           $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
           $ENV{"form.$var.paper"};
       return 1;
   }
   
   1;
   
   package Apache::lonprintout::page_size_state;
   
   =pod
   
   =head1 Helper element: page_size_state
   
   See lonhelper.pm documentation for discussion of the helper framework.
   
   Apache::lonprintout::page_size_state is an element that gives the 
   user the opportunity to further refine the page settings if they
   select a single-column page.
   
   page_size_state is always directly invoked in lonprintout.pm, so there
   is no tag interface. You actually pass parameters to the constructor.
   
   =over 4
   
   =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
   
   =back
   
   =cut
   
   use Apache::lonhelper;
   
   no strict;
   @ISA = ("Apache::lonhelper::element");
   use strict;
   
   
   
   sub new { 
       my $self = Apache::lonhelper::element->new();
   
       shift; # disturbs me (probably prevents subclassing) but works (drops
              # package descriptor)... - Jeremy
   
       $self->{'variable'} = shift;
       my $helper = Apache::lonhelper::getHelper();
       $helper->declareVar($self->{'variable'});
   
       # The variable name of the format element, so we can look into 
       # $helper->{VARS} to figure out whether the columns are one or two
       $self->{'formatvar'} = shift;
   
       # The state to transition to after selection, or after discovering
       # the cols are not set to 1
       $self->{NEXTSTATE} = shift;
       bless($self);
       return $self;
   }
   
   sub render {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
       my $result = '';
       my $var = $self->{'variable'};
   
       if (defined $self->{ERROR_MSG}) {
           $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
       }
   
       $result .= <<ELEMENTHTML;
   
   <p>How should the column be formatted?</p>
   
   <table cellpadding='3'>
     <tr>
       <td align='right'><b>Width</b>:</td>
       <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
       <td align='left'>
         <select name='$var.widthunit'>
           <option>cm</option><option>in</option>
         </select>
       </td>
     </tr>
     <tr>
       <td align='right'><b>Height</b>:</td>
       <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
       <td align='left'>
         <select name='$var.heightunit'>
           <option>cm</option><option>in</option>
         </select>
       </td>
     </tr>
     <tr>
       <td align='right'><b>Left margin</b>:</td>
       <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
       <td align='left'>
         <select name='$var.lmarginunit'>
           <option>cm</option><option>in</option>
         </select>
       </td>
     </tr>
   </table>
   
   <p>Hint: Some instructors like to leave scratch space for the student by
   making the width much smaller then the width of the page.</p>
   
   ELEMENTHTML
   
       return $result;
   }
   
   # If the user didn't select 1 column, skip this state.
   sub preprocess {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
   
       my $format = $helper->{VARS}->{$self->{'formatvar'}};
       if (substr($format, 2, 1) ne '1') {
           $helper->changeState($self->{NEXTSTATE});
       }
      
       return 1;
   }
   
   sub postprocess {
       my $self = shift;
   
       my $var = $self->{'variable'};
       my $helper = Apache::lonhelper->getHelper();
       my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; 
       my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; 
       my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; 
       $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; 
       $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; 
       $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; 
   
       my $error = '';
   
       # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
       # by an optional period, followed by digits, ending the string
   
       if ($width !~  /^-?[0-9]+(\.[0-9]*)?$/) {
           $error .= "Invalid width; please type only a number.<br />\n";
       }
       if ($height !~  /^-?[0-9]+(\.[0-9]*)?$/) {
           $error .= "Invalid height; please type only a number.<br />\n";
       }
       if ($lmargin !~  /^-?[0-9]+(\.[0-9]*)?$/) {
           $error .= "Invalid left margin; please type only a number.<br />\n";
       }
   
       if (!$error) {
           Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
           return 1;
       } else {
           $self->{ERROR_MSG} = $error;
           return 0;
       }
   }
   
   
   
   __END__
   
 #    my $ere;  
 #    foreach $ere (%ENV) {  
 # $r->print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");  
 #    }  

Removed from v.1.10  
changed lines
  Added in v.1.273


FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>