Annotation of loncom/interface/lonprintout.pm, revision 1.239

1.1       www         1: # The LearningOnline Network
                      2: # Printout
                      3: #
1.239   ! bowersj2    4: # $Id: lonprintout.pm,v 1.236 2003/09/17 17:32:56 albertel Exp $
1.11      albertel    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: #
1.1       www        28: # (Internal Server Error Handler
                     29: #
                     30: # (Login Screen
                     31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
                     32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
                     33: #
                     34: # 3/1/1 Gerd Kortemeyer)
                     35: #
                     36: # 3/1 Gerd Kortemeyer
                     37: #
1.3       sakharuk   38: # 9/17 Alex Sakharuk
                     39: #
1.1       www        40: package Apache::lonprintout;
                     41: 
                     42: use strict;
1.10      albertel   43: use Apache::Constants qw(:common :http);
1.2       sakharuk   44: use Apache::lonxml;
                     45: use Apache::lonnet;
1.54      sakharuk   46: use Apache::loncommon;
1.13      sakharuk   47: use Apache::inputtags;
1.54      sakharuk   48: use Apache::grades;
1.13      sakharuk   49: use Apache::edit;
1.5       sakharuk   50: use Apache::File();
1.68      sakharuk   51: use Apache::lonnavmaps;
1.227     sakharuk   52: use Apache::lonratedt;
1.34      sakharuk   53: use POSIX qw(strftime);
1.60      sakharuk   54: use GDBM_File;
                     55: 
                     56: 
                     57: my %hash;
1.76      sakharuk   58: my $LaTeXwidth = 0;
1.3       sakharuk   59: 
1.2       sakharuk   60: 
1.71      sakharuk   61: sub latex_header_footer_remove {
                     62:     my $text = shift;
                     63:     $text =~ s/\\end{document}//;
                     64:     $text =~ s/\\documentclass([^&]*)\\begin{document}//;
                     65:     return $text;
                     66: }
                     67: 
                     68: 
1.37      sakharuk   69: sub character_chart {
                     70:     my $result = shift;	
1.116     sakharuk   71:     $result =~ s/&\#0?0?(7|9);//g;
                     72:     $result =~ s/&\#0?(10|13);//g;
                     73:     $result =~ s/&\#0?32;/ /g;
                     74:     $result =~ s/&\#0?33;/!/g;
                     75:     $result =~ s/&(\#0?34|quot);/\"/g;
                     76:     $result =~ s/&\#0?35;/\\\#/g;
                     77:     $result =~ s/&\#0?36;/\\\$/g;
                     78:     $result =~ s/&\#0?37;/\\%/g; 
                     79:     $result =~ s/&(\#0?38|amp);/\\&/g; 
                     80:     $result =~ s/&\#(0?39|146);/\'/g;
                     81:     $result =~ s/&\#0?40;/(/g;
                     82:     $result =~ s/&\#0?41;/)/g;
                     83:     $result =~ s/&\#0?42;/\*/g;
                     84:     $result =~ s/&\#0?43;/\+/g;
                     85:     $result =~ s/&\#(0?44|130);/,/g;
                     86:     $result =~ s/&\#0?45;/-/g;
                     87:     $result =~ s/&\#0?46;/\./g;
                     88:     $result =~ s/&\#0?47;/\//g;
                     89:     $result =~ s/&\#0?48;/0/g;
                     90:     $result =~ s/&\#0?49;/1/g;
                     91:     $result =~ s/&\#0?50;/2/g;
                     92:     $result =~ s/&\#0?51;/3/g;
                     93:     $result =~ s/&\#0?52;/4/g;
                     94:     $result =~ s/&\#0?53;/5/g;
                     95:     $result =~ s/&\#0?54;/6/g;
                     96:     $result =~ s/&\#0?55;/7/g;
                     97:     $result =~ s/&\#0?56;/8/g;
                     98:     $result =~ s/&\#0?57;/9/g;
                     99:     $result =~ s/&\#0?58;/:/g;
                    100:     $result =~ s/&\#0?59;/;/g;
                    101:     $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
                    102:     $result =~ s/&\#0?61;/\$=\$/g;
                    103:     $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;
                    104:     $result =~ s/&\#0?63;/\?/g;
                    105:     $result =~ s/&\#0?65;/A/g;
                    106:     $result =~ s/&\#0?66;/B/g;
                    107:     $result =~ s/&\#0?67;/C/g;
                    108:     $result =~ s/&\#0?68;/D/g;
                    109:     $result =~ s/&\#0?69;/E/g;
                    110:     $result =~ s/&\#0?70;/F/g;
                    111:     $result =~ s/&\#0?71;/G/g;
                    112:     $result =~ s/&\#0?72;/H/g;
                    113:     $result =~ s/&\#0?73;/I/g;
                    114:     $result =~ s/&\#0?74;/J/g;
                    115:     $result =~ s/&\#0?75;/K/g;
                    116:     $result =~ s/&\#0?76;/L/g;
                    117:     $result =~ s/&\#0?77;/M/g;
                    118:     $result =~ s/&\#0?78;/N/g;
                    119:     $result =~ s/&\#0?79;/O/g;
                    120:     $result =~ s/&\#0?80;/P/g;
                    121:     $result =~ s/&\#0?81;/Q/g;
                    122:     $result =~ s/&\#0?82;/R/g;
                    123:     $result =~ s/&\#0?83;/S/g;
                    124:     $result =~ s/&\#0?84;/T/g;
                    125:     $result =~ s/&\#0?85;/U/g;
                    126:     $result =~ s/&\#0?86;/V/g;
                    127:     $result =~ s/&\#0?87;/W/g;
                    128:     $result =~ s/&\#0?88;/X/g;
                    129:     $result =~ s/&\#0?89;/Y/g;
                    130:     $result =~ s/&\#0?90;/Z/g;
                    131:     $result =~ s/&\#0?91;/[/g;
                    132:     $result =~ s/&\#0?92;/\$\\setminus\$/g;
                    133:     $result =~ s/&\#0?93;/]/g;
                    134:     $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;
                    135:     $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
                    136:     $result =~ s/&\#(0?96|145);/\`/g;
                    137:     $result =~ s/&\#0?97;/a/g;
                    138:     $result =~ s/&\#0?98;/b/g;
                    139:     $result =~ s/&\#0?99;/c/g;
                    140:     $result =~ s/&\#100;/d/g;
                    141:     $result =~ s/&\#101;/e/g;
                    142:     $result =~ s/&\#102;/f/g;
                    143:     $result =~ s/&\#103;/g/g;
                    144:     $result =~ s/&\#104;/h/g;
                    145:     $result =~ s/&\#105;/i/g;
                    146:     $result =~ s/&\#106;/j/g;
                    147:     $result =~ s/&\#107;/k/g;
                    148:     $result =~ s/&\#108;/l/g;
                    149:     $result =~ s/&\#109;/m/g;
                    150:     $result =~ s/&\#110;/n/g;
                    151:     $result =~ s/&\#111;/o/g;
                    152:     $result =~ s/&\#112;/p/g;
                    153:     $result =~ s/&\#113;/q/g;
                    154:     $result =~ s/&\#114;/r/g;
                    155:     $result =~ s/&\#115;/s/g;
                    156:     $result =~ s/&\#116;/t/g;
                    157:     $result =~ s/&\#117;/u/g;
                    158:     $result =~ s/&\#118;/v/g;
                    159:     $result =~ s/&\#119;/w/g;
                    160:     $result =~ s/&\#120;/x/g;
                    161:     $result =~ s/&\#121;/y/g;
                    162:     $result =~ s/&\#122;/z/g;
                    163:     $result =~ s/&\#123;/\\{/g;
                    164:     $result =~ s/&\#124;/\|/g;
                    165:     $result =~ s/&\#125;/\\}/g;
                    166:     $result =~ s/&\#126;/\~/g;
                    167:     $result =~ s/&\#131;/\\textflorin /g;
                    168:     $result =~ s/&\#132;/\"/g;
                    169:     $result =~ s/&\#133;/\$\\ldots\$/g;
                    170:     $result =~ s/&\#134;/\$\\dagger\$/g;
                    171:     $result =~ s/&\#135;/\$\\ddagger\$/g;
                    172:     $result =~ s/&\#137;/\\textperthousand /g;
                    173:     $result =~ s/&\#140;/{\\OE}/g;
                    174:     $result =~ s/&\#147;/\`\`/g;
                    175:     $result =~ s/&\#148;/\'\'/g;
                    176:     $result =~ s/&\#149;/\$\\bullet\$/g;
                    177:     $result =~ s/&\#150;/--/g;
                    178:     $result =~ s/&\#151;/---/g;
                    179:     $result =~ s/&\#152;/\$\\sim\$/g;
                    180:     $result =~ s/&\#153;/\\texttrademark /g;
                    181:     $result =~ s/&\#156;/\\oe/g;
                    182:     $result =~ s/&\#159;/\\\"Y/g;
1.131     bowersj2  183:     $result =~ s/&(\#160|nbsp);//g;
1.116     sakharuk  184:     $result =~ s/&(\#161|iexcl);/!\`/g;
                    185:     $result =~ s/&(\#162|cent);/\\textcent /g;
                    186:     $result =~ s/&(\#163|pound);/\\pounds /g; 
                    187:     $result =~ s/&(\#164|curren);/\\textcurrency /g;
                    188:     $result =~ s/&(\#165|yen);/\\textyen /g;
                    189:     $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
                    190:     $result =~ s/&(\#167|sect);/\\textsection /g;
                    191:     $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
                    192:     $result =~ s/&(\#169|copy);/\\copyright /g;
                    193:     $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
                    194:     $result =~ s/&(\#172|not);/\$\\neg\$/g;
                    195:     $result =~ s/&(\#173|shy);/ - /g;
                    196:     $result =~ s/&(\#174|reg);/\\textregistered /g;
                    197:     $result =~ s/&(\#175|macr);/\$^{-}\$/g;
                    198:     $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;
                    199:     $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;
                    200:     $result =~ s/&(\#178|sup2);/\$^2\$/g;
                    201:     $result =~ s/&(\#179|sup3);/\$^3\$/g;
                    202:     $result =~ s/&(\#180|acute);/\\textacute /g;
                    203:     $result =~ s/&(\#181|micro);/\$\\mu\$/g;
                    204:     $result =~ s/&(\#182|para);/\\P/g;
                    205:     $result =~ s/&(\#183|middot);/\$\\cdot\$/g;
                    206:     $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
                    207:     $result =~ s/&(\#185|sup1);/\$^1\$/g;
                    208:     $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
                    209:     $result =~ s/&(\#188|frac14);/\\textonequarter /g;
                    210:     $result =~ s/&(\#189|frac12);/\\textonehalf /g;
                    211:     $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
                    212:     $result =~ s/&(\#191|iquest);/?\`/g;   
                    213:     $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
                    214:     $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
                    215:     $result =~ s/&(\#194|Acirc);/\\^{A}/g;
                    216:     $result =~ s/&(\#195|Atilde);/\\~{A}/g;
                    217:     $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
                    218:     $result =~ s/&(\#197|Aring);/{\\AA}/g;
                    219:     $result =~ s/&(\#198|AElig);/{\\AE}/g;
                    220:     $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
                    221:     $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
                    222:     $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
                    223:     $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
                    224:     $result =~ s/&(\#203|Euml);/\\\"{E}/g;
                    225:     $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
                    226:     $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
                    227:     $result =~ s/&(\#206|Icirc);/\\^{I}/g;
                    228:     $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
                    229:     $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
                    230:     $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
                    231:     $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
                    232:     $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
                    233:     $result =~ s/&(\#213|Otilde);/\\~{O}/g;
                    234:     $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
                    235:     $result =~ s/&(\#215|times);/\$\\times\$/g;
                    236:     $result =~ s/&(\#216|Oslash);/{\\O}/g;
                    237:     $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
                    238:     $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
                    239:     $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
                    240:     $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
                    241:     $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
                    242:     $result =~ s/&(\#223|szlig);/\\ss/g;
                    243:     $result =~ s/&(\#224|agrave);/\\\`{a}/g;
                    244:     $result =~ s/&(\#225|aacute);/\\\'{a}/g;
                    245:     $result =~ s/&(\#226|acirc);/\\^{a}/g;
                    246:     $result =~ s/&(\#227|atilde);/\\~{a}/g;
                    247:     $result =~ s/&(\#228|auml);/\\\"{a}/g;
                    248:     $result =~ s/&(\#229|aring);/{\\aa}/g;
                    249:     $result =~ s/&(\#230|aelig);/{\\ae}/g;
                    250:     $result =~ s/&(\#231|ccedil);/\\c{c}/g;
                    251:     $result =~ s/&(\#232|egrave);/\\\`{e}/g;
                    252:     $result =~ s/&(\#233|eacute);/\\\'{e}/g;
                    253:     $result =~ s/&(\#234|ecirc);/\\^{e}/g;
                    254:     $result =~ s/&(\#235|euml);/\\\"{e}/g;
                    255:     $result =~ s/&(\#236|igrave);/\\\`{i}/g;
                    256:     $result =~ s/&(\#237|iacute);/\\\'{i}/g;
                    257:     $result =~ s/&(\#238|icirc);/\\^{i}/g;
                    258:     $result =~ s/&(\#239|iuml);/\\\"{i}/g;
                    259:     $result =~ s/&(\#240|eth);/\$\\partial\$/g;
                    260:     $result =~ s/&(\#241|ntilde);/\\~{n}/g;
                    261:     $result =~ s/&(\#242|ograve);/\\\`{o}/g;
                    262:     $result =~ s/&(\#243|oacute);/\\\'{o}/g;
                    263:     $result =~ s/&(\#244|ocirc);/\\^{o}/g;
                    264:     $result =~ s/&(\#245|otilde);/\\~{o}/g;
                    265:     $result =~ s/&(\#246|ouml);/\\\"{o}/g;
                    266:     $result =~ s/&(\#247|divide);/\$\\div\$/g;
                    267:     $result =~ s/&(\#248|oslash);/{\\o}/g;
                    268:     $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
                    269:     $result =~ s/&(\#250|uacute);/\\\'{u}/g;
                    270:     $result =~ s/&(\#251|ucirc);/\\^{u}/g;
                    271:     $result =~ s/&(\#252|uuml);/\\\"{u}/g;
                    272:     $result =~ s/&(\#253|yacute);/\\\'{y}/g;
                    273:     $result =~ s/&(\#255|yuml);/\\\"{y}/g;
                    274:     $result =~ s/&\#952;/\$\\theta\$/g;
1.117     sakharuk  275: #Greek Alphabet
                    276:     $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;
                    277:     $result =~ s/&(beta|\#946);/\$\\beta \$/g;
                    278:     $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;
                    279:     $result =~ s/&(delta|\#948);/\$\\delta \$/g;
                    280:     $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;
                    281:     $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;
                    282:     $result =~ s/&(eta|\#951);/\$\\eta \$/g;
                    283:     $result =~ s/&(theta|\#952);/\$\\theta \$/g;
                    284:     $result =~ s/&(iota|\#953);/\$\\iota \$/g;
                    285:     $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;
                    286:     $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;
                    287:     $result =~ s/&(mu|\#956);/\$\\mu \$/g;
                    288:     $result =~ s/&(nu|\#957);/\$\\nu \$/g;
                    289:     $result =~ s/&(xi|\#958);/\$\\xi \$/g;
1.199     sakharuk  290:     $result =~ s/&(omicron|\#959);/o/g;
1.117     sakharuk  291:     $result =~ s/&(pi|\#960);/\$\\pi \$/g;
                    292:     $result =~ s/&(rho|\#961);/\$\\rho \$/g;
                    293:     $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
                    294:     $result =~ s/&(tau|\#964);/\$\\tau \$/g;
                    295:     $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
                    296:     $result =~ s/&(phi|\#966);/\$\\phi \$/g;
                    297:     $result =~ s/&(chi|\#967);/\$\\chi \$/g;
                    298:     $result =~ s/&(psi|\#968);/\$\\psi \$/g;
                    299:     $result =~ s/&(omega|\#969);/\$\\omega \$/g;
1.199     sakharuk  300:     $result =~ s/&(thetasym|\#977);/\$\\vartheta \$/g;
                    301:     $result =~ s/&(piv|\#982);/\$\\varpi \$/g;
                    302:     $result =~ s/&(Alpha|\#913);/A/g;
                    303:     $result =~ s/&(Beta|\#914);/B/g;
1.117     sakharuk  304:     $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
                    305:     $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
1.199     sakharuk  306:     $result =~ s/&(Epsilon|\#917);/E/g;
                    307:     $result =~ s/&(Zeta|\#918);/Z/g;
                    308:     $result =~ s/&(Eta|\#919);/H/g;
1.117     sakharuk  309:     $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
1.199     sakharuk  310:     $result =~ s/&(Iota|\#921);/I/g;
                    311:     $result =~ s/&(Kappa|\#922);/K/g;
1.117     sakharuk  312:     $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
1.199     sakharuk  313:     $result =~ s/&(Mu|\#924);/M/g;
                    314:     $result =~ s/&(Nu|\#925);/N/g;
1.117     sakharuk  315:     $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
1.199     sakharuk  316:     $result =~ s/&(Omicron|\#927);/O/g;
1.117     sakharuk  317:     $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
1.199     sakharuk  318:     $result =~ s/&(Rho|\#929);/P/g;
1.117     sakharuk  319:     $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
1.199     sakharuk  320:     $result =~ s/&(Tau|\#932);/T/g;
1.117     sakharuk  321:     $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
                    322:     $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
1.199     sakharuk  323:     $result =~ s/&(Chi|\#935);/X/g;
1.117     sakharuk  324:     $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
                    325:     $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
1.199     sakharuk  326: #Arrows (extended HTML 4.01)
                    327:     $result =~ s/&(larr|\#8592);/\$\\leftarrow \$/g;
                    328:     $result =~ s/&(uarr|\#8593);/\$\\uparrow \$/g;
                    329:     $result =~ s/&(rarr|\#8594);/\$\\rightarrow \$/g;
                    330:     $result =~ s/&(darr|\#8595);/\$\\downarrow \$/g;
                    331:     $result =~ s/&(harr|\#8596);/\$\\leftrightarrow \$/g;
                    332:     $result =~ s/&(lArr|\#8656);/\$\\Leftarrow \$/g;
                    333:     $result =~ s/&(uArr|\#8657);/\$\\Uparrow \$/g;
                    334:     $result =~ s/&(rArr|\#8658);/\$\\Rightarrow \$/g;
                    335:     $result =~ s/&(dArr|\#8659);/\$\\Downarrow \$/g;
                    336:     $result =~ s/&(hArr|\#8660);/\$\\Leftrightarrow \$/g;
                    337: #Mathematical Operators (extended HTML 4.01)
                    338:     $result =~ s/&(forall|\#8704);/\$\\forall \$/g;
                    339:     $result =~ s/&(part|\#8706);/\$\\partial \$/g;
                    340:     $result =~ s/&(exist|\#8707);/\$\\exists \$/g;
                    341:     $result =~ s/&(empty|\#8709);/\$\\emptyset \$/g;
                    342:     $result =~ s/&(nabla|\#8711);/\$\\nabla \$/g;
                    343:     $result =~ s/&(isin|\#8712);/\$\\in \$/g;
                    344:     $result =~ s/&(notin|\#8713);/\$\\notin \$/g;
                    345:     $result =~ s/&(ni|\#8715);/\$\\ni \$/g;
                    346:     $result =~ s/&(prod|\#8719);/\$\\prod \$/g;
                    347:     $result =~ s/&(sum|\#8721);/\$\\sum \$/g;
                    348:     $result =~ s/&(minus|\#8722);/\$-\$/g;
                    349:     $result =~ s/&(lowast|\#8727);/\$*\$/g;
                    350:     $result =~ s/&(radic|\#8730);/\$\\surd \$/g;
                    351:     $result =~ s/&(prop|\#8733);/\$\\propto \$/g;
                    352:     $result =~ s/&(infin|\#8734);/\$\\infty \$/g;
                    353:     $result =~ s/&(ang|\#8736);/\$\\angle \$/g;
                    354:     $result =~ s/&(and|\#8743);/\$\\wedge \$/g;
                    355:     $result =~ s/&(or|\#8744);/\$\\vee \$/g;
                    356:     $result =~ s/&(cap|\#8745);/\$\\cap \$/g;
                    357:     $result =~ s/&(cup|\#8746);/\$\\cup \$/g;
                    358:     $result =~ s/&(int|\#8747);/\$\\int \$/g;
                    359:     $result =~ s/&(sim|\#8764);/\$\\sim \$/g;
                    360:     $result =~ s/&(cong|\#8773);/\$\\cong \$/g;
                    361:     $result =~ s/&(asymp|\#8776);/\$\\approx \$/g;
                    362:     $result =~ s/&(ne|\#8800);/\$\\not= \$/g;
                    363:     $result =~ s/&(equiv|\#8801);/\$\\equiv \$/g;
                    364:     $result =~ s/&(le|\#8804);/\$\\leq \$/g;
                    365:     $result =~ s/&(ge|\#8805);/\$\\geq \$/g;
                    366:     $result =~ s/&(sub|\#8834);/\$\\subset \$/g;
                    367:     $result =~ s/&(sup|\#8835);/\$\\supset \$/g;
                    368:     $result =~ s/&(nsub|\#8836);/\$\\not\\subset \$/g;
                    369:     $result =~ s/&(sube|\#8838);/\$\\subseteq \$/g;
                    370:     $result =~ s/&(supe|\#8839);/\$\\supseteq \$/g;
                    371:     $result =~ s/&(oplus|\#8853);/\$\\oplus \$/g;
                    372:     $result =~ s/&(otimes|\#8855);/\$\\otimes \$/g;
                    373:     $result =~ s/&(perp|\#8869);/\$\\perp \$/g;
                    374:     $result =~ s/&(sdot|\#8901);/\$\\cdot \$/g;
                    375: #Geometric Shapes (extended HTML 4.01)
                    376:     $result =~ s/&(loz|\#9674);/\$\\Diamond \$/g;
                    377: #Miscellaneous Symbols (extended HTML 4.01)
                    378:     $result =~ s/&(spades|\#9824);/\$\\spadesuit \$/g;
                    379:     $result =~ s/&(clubs|\#9827);/\$\\clubsuit \$/g;
                    380:     $result =~ s/&(hearts|\#9829);/\$\\heartsuit \$/g;
                    381:     $result =~ s/&(diams|\#9830);/\$\\diamondsuit \$/g;
1.37      sakharuk  382:     return $result;
                    383: }
1.41      sakharuk  384: 
                    385: 
1.177     sakharuk  386: sub page_format {
1.140     sakharuk  387: #
                    388: #Correspondence between $papersize variable and real paper format:
                    389: # 0 - "Letter [8 1/2x11 in]"
                    390: # 1 - "Legal [8 1/2x14 in]"
                    391: # 2 - "Ledger/Tabloid [11x17 in]"
                    392: # 3 - "Executive [7 1/2x10 in]"
                    393: # 4 - "A2 [420x594 mm]"
                    394: # 5 - "A3 [297x420 mm]"
                    395: # 6 - "A4 [210x297 mm]"
                    396: # 7 - "A5 [148x210 mm]"
                    397: # 8 - "A6 [105x148 mm]"
                    398: # 
                    399:     my ($papersize,$layout,$numberofcolumns) = @_; 
1.202     sakharuk  400:     my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = (0,0,0,0,0);
1.140     sakharuk  401:     if ($papersize eq '0') {
                    402: 	if ($layout eq 'book') {
                    403: 	    if ($numberofcolumns == 1) {
1.190     sakharuk  404: 		$textwidth = '7.1 in';      #'18 cm';
                    405: 		$textheight = '10.2 in';    #'25.9 cm';
1.140     sakharuk  406: 		$oddoffset = '-0.57 in';
                    407: 		$evenoffset = '-0.57 in';
                    408: 	    } elsif ($numberofcolumns == 2) {
1.190     sakharuk  409: 		$textwidth = '3.66 in';     #'93 mm';
                    410: 		$textheight = '10.2 in';    #'25.9 cm';
1.140     sakharuk  411: 		$oddoffset = '-0.57 in';
                    412: 		$evenoffset = '-0.57 in';
                    413: 	    }
                    414: 	} elsif ($layout eq 'album') {
                    415: 	    if ($numberofcolumns eq '1') {
                    416: 		$textwidth = '8.8 in';
                    417: 		$textheight = '6.8 in';
                    418: 		$oddoffset = '-40 pt';
                    419: 		$evenoffset = '-60 pt';
                    420: 	    } elsif ($numberofcolumns == 2) {
1.202     sakharuk  421: 		$textwidth = '4.4 in';
1.140     sakharuk  422: 		$textheight = '6.8 in';
1.202     sakharuk  423: 		$oddoffset = '-0.5 in';
                    424: 		$evenoffset = '-1.5 in';
                    425: 		$topmargin = '3.5 in';
1.140     sakharuk  426: 	    }
                    427: 	}
                    428: #    } elsif($papersize eq '1') {
                    429: #    } elsif($papersize eq '2') {
                    430: #    } elsif($papersize eq '3'/) {
                    431:     } elsif($papersize eq '6') {
                    432: 	if ($layout eq 'book') {
                    433: 	    if ($numberofcolumns == 1) {
                    434: 		$textwidth = '18 cm';
                    435: 		$textheight = '28 cm';
                    436: 		$oddoffset = '-0.57 in';
                    437: 		$evenoffset = '-0.57 in';
                    438: 	    } elsif ($numberofcolumns == 2) {
                    439: 		$textwidth = '96 mm';
                    440: 		$textheight = '2 cm';
                    441: 		$oddoffset = '-0.57 in';
                    442: 		$evenoffset = '-0.57 in';
                    443: 	    }
                    444: 	} elsif ($layout eq 'album') {
                    445: 	    if ($numberofcolumns eq '1') {
                    446: 		$textwidth = '8.5 in';
                    447: 		$textheight = '7.7 in';
                    448: 		$oddoffset = '-40 pt';
                    449: 		$evenoffset = '-60 pt';
                    450: 	    } elsif ($numberofcolumns == 2) {
                    451: 		$textwidth = '3.9 in';
                    452: 		$textheight = '7.7 in';
                    453: 		$oddoffset = '-40 pt';
                    454: 		$evenoffset = '-60 pt';
                    455: 	    }
                    456: 	}
                    457: #    } elsif($papersize eq '5') {
                    458: #    } elsif($papersize eq '4') {
                    459: #    } elsif($papersize eq '7') {
                    460: #    } elsif($papersize eq '8') {
1.76      sakharuk  461:     }
1.202     sakharuk  462:     return $textwidth,$textheight,$oddoffset,$evenoffset,$topmargin;
1.140     sakharuk  463: }
1.76      sakharuk  464: 
                    465: 
1.126     albertel  466: sub get_name {
                    467:     my ($uname,$udom)=@_;
                    468:     if (!defined($uname)) { $uname=$ENV{'user.name'}; }
1.212     albertel  469:     if (!defined($udom)) { $udom=$ENV{'user.domain'}; }
1.126     albertel  470:     my $plainname=&Apache::loncommon::plainname($uname,$udom);
1.213     albertel  471:     if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
                    472:     $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
                    473:     return $plainname;
1.126     albertel  474: }
                    475: 
1.213     albertel  476: sub get_course {
                    477:     my $courseidinfo;
                    478:     if (defined($ENV{'request.course.id'})) {
                    479: 	$courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'header');
                    480:     }
                    481:     return $courseidinfo;
                    482: }
1.177     sakharuk  483: 
1.76      sakharuk  484: sub page_format_transformation {
1.214     sakharuk  485:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist) = @_; 
1.202     sakharuk  486:     my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
1.222     sakharuk  487:     $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
1.213     albertel  488:     if ($numberofcolumns != 1) {
                    489: 	($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
                    490:     } else {
                    491: 	($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
                    492:     }
1.126     albertel  493:     my $name = &get_name();
1.213     albertel  494:     my $courseidinfo = &get_course();
                    495:     if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1.140     sakharuk  496:     if ($layout eq 'album') {
1.202     sakharuk  497: 	my $topmargintoinsert = '';
                    498: 	if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
1.213     albertel  499: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$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} /;
1.140     sakharuk  500:     } elsif ($layout eq 'book') {
                    501: 	if ($choice ne 'All class print') { 
1.213     albertel  502: 	    $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}/;
1.140     sakharuk  503: 	} else {
1.190     sakharuk  504: 	    $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
1.140     sakharuk  505: 	}
                    506:     }
1.214     sakharuk  507:     if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
                    508:     if ($indexlist eq 'yes') {
                    509: 	$text=~s/(\\begin{document})/\\makeindex $1/;
                    510: 	$text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
                    511:     }
1.140     sakharuk  512:     return $text;
                    513: }
                    514: 
                    515: 
1.33      sakharuk  516: sub page_cleanup {
                    517:     my $result = shift;	
1.65      sakharuk  518:  
                    519:     $result =~ m/\\end{document}(\d*)$/;
1.34      sakharuk  520:     my $number_of_columns = $1;
1.33      sakharuk  521:     my $insert = '{';
1.34      sakharuk  522:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
1.33      sakharuk  523:     $insert .= '}';
1.65      sakharuk  524:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
1.34      sakharuk  525:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
                    526:     return $result,$number_of_columns;
1.7       sakharuk  527: }
1.5       sakharuk  528: 
1.3       sakharuk  529: 
1.60      sakharuk  530: sub details_for_menu {
                    531: 
                    532:     my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
                    533:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
1.233     www       534:     my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
1.123     albertel  535:     $map=&Apache::lonnet::clutter($map);
1.102     sakharuk  536:     my $name_of_sequence;
1.123     albertel  537:     $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};
1.63      albertel  538:     if ($name_of_sequence =~ /^\s*$/) {
1.123     albertel  539: 	$map =~ m|([^/]+)$|;
                    540: 	$name_of_sequence = $1;
1.63      albertel  541:     }
1.123     albertel  542:     my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};
1.63      albertel  543:     if ($name_of_map =~ /^\s*$/) {
1.123     albertel  544: 	$ENV{'request.course.uri'} =~ m|([^/]+)$|;
                    545: 	$name_of_map = $1;
                    546:     }
1.63      albertel  547:     return ($name_of_resourse,$name_of_sequence,$name_of_map);
1.60      sakharuk  548: 
1.76      sakharuk  549: }
                    550: 
                    551: 
                    552: sub latex_corrections {
                    553: 
                    554:     my ($number_of_columns,$result) = @_;
                    555: 
1.185     sakharuk  556: #    $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
1.76      sakharuk  557:     $result =~ s/\$number_of_columns/$number_of_columns/g;
1.91      sakharuk  558:     $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/;
                    559:     $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
                    560:     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
1.76      sakharuk  561: #-- LaTeX corrections     
                    562:     my $first_comment = index($result,'<!--',0);
                    563:     while ($first_comment != -1) {
                    564: 	my $end_comment = index($result,'-->',$first_comment);
                    565: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
                    566: 	$first_comment = index($result,'<!--',$first_comment);
                    567:     }
                    568:     $result =~ s/^\s+$//gm; #remove empty lines
1.94      sakharuk  569:     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
1.76      sakharuk  570:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
                    571:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
                    572:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
                    573: 	$result =~ s/\\\\\s+\[/ \[/g;
                    574:     $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
                    575:     #conversion of html characters to LaTeX equivalents
                    576:     if ($result =~ m/&(\w+|#\d+);/) {
                    577: 	$result = &character_chart($result);
                    578:     }
                    579:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
                    580:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
                    581: 
                    582:     return $result;
1.60      sakharuk  583: }
                    584: 
1.3       sakharuk  585: 
1.214     sakharuk  586: sub index_table {
                    587:     my $currentURL = shift;
                    588:     my $insex_string='';
                    589:     $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
                    590:     $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
                    591:     return $insex_string;
                    592: }
                    593: 
                    594: 
1.215     sakharuk  595: sub IndexCreation {
                    596:     my ($texversion,$currentURL)=@_;
                    597:     my @key_words=split(/,/,&index_table($currentURL));
                    598:     my $chunk='';
                    599:     my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
                    600:     if ($st>0) {
                    601: 	for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
                    602: 	$chunk=substr($texversion,0,$st+1);
                    603: 	substr($texversion,0,$st+1)=' ';
                    604:     }
                    605:     foreach my $key_word (@key_words) {
                    606: 	if ($key_word=~/\S+/) {
                    607: 	    $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
                    608: 	}
                    609:     }			
                    610:     if ($st>0) {substr($texversion,0,1)=$chunk;}
                    611:     return $texversion;
                    612: }
                    613: 
                    614: 
1.177     sakharuk  615: sub output_data {
1.184     sakharuk  616:     my ($r,$helper,$rparmhash) = @_;
                    617:     my %parmhash = %$rparmhash;
1.187     www       618:     my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
1.140     sakharuk  619:     $r->print(<<ENDPART);
                    620: <html>
                    621: <head>
                    622: <title>LON-CAPA output for printing</title>
                    623: </head>
1.187     www       624: $bodytag
                    625: Please stand by while processing your print request, this may take some time ...
1.140     sakharuk  626: ENDPART
                    627: 
                    628:     my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
                    629:     my ($result,$selectionmade) = ('','');
                    630:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
                    631:     my @temporary_array=split /\|/,$format_from_helper;
                    632:     my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
                    633:     if ($laystyle eq 'L') {
                    634: 	$laystyle='album';
                    635:     } else {
                    636: 	$laystyle='book';
                    637:     }
1.177     sakharuk  638:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
1.140     sakharuk  639:     my $assignment =  $ENV{'form.assignment'};
                    640:     my $LaTeXwidth; 
1.190     sakharuk  641:     if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
1.140     sakharuk  642: 	$LaTeXwidth = $1*10;
1.190     sakharuk  643:     } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
1.140     sakharuk  644: 	$LaTeXwidth = $1;
1.190     sakharuk  645:     } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
1.140     sakharuk  646: 	$LaTeXwidth = $1*25.4;
                    647:     }
                    648:     $LaTeXwidth.=' mm';
1.153     sakharuk  649:     
1.140     sakharuk  650:     if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
1.143     sakharuk  651:       #-- single document - problem, page, html, xml, ...
                    652: 	my $currentURL;
1.162     sakharuk  653: 	if ($helper->{'VARS'}->{'construction'} ne '1') {
1.185     sakharuk  654:             #prints published resource
1.153     sakharuk  655: 	    $currentURL=$helper->{'VARS'}->{'postdata'};
1.143     sakharuk  656: 	} else {
1.185     sakharuk  657:             #prints resource from the construction space
1.162     sakharuk  658: 	    $currentURL=$helper->{'VARS'}->{'filename'};
                    659: 	    $currentURL=~s/\/home\//\/~/;
                    660: 	    $currentURL=~s/public_html\///;
1.206     sakharuk  661: 	    if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
1.143     sakharuk  662: 	}
1.140     sakharuk  663: 	$selectionmade = 1;
1.143     sakharuk  664: 	if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1.162     sakharuk  665: 	    my %moreenv;
                    666: 	    $moreenv{'request.filename'}=$currentURL;
1.166     albertel  667: 	    my %form;
                    668: 	    $form{'grade_target'}='tex';
1.200     sakharuk  669: 	    $form{'textwidth'}=$LaTeXwidth;	
1.203     sakharuk  670: 	    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
                    671: 	    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1.169     albertel  672: 	    my $rndseed=time;
1.230     albertel  673: 	    if ($helper->{'VARS'}->{'curseed'}) {
                    674: 		$rndseed=$helper->{'VARS'}->{'curseed'};
                    675: 	    }
1.169     albertel  676: 	    $form{'rndseed'}=$rndseed;
1.162     sakharuk  677: 	    &Apache::lonnet::appenv(%moreenv);
1.201     sakharuk  678: 	    &Apache::lonnet::delenv('form.counter');
                    679: 	    &Apache::lonxml::init_counter();
1.168     albertel  680: 	    my $texversion=&Apache::lonnet::ssi($currentURL,%form);
1.165     sakharuk  681: 	    &Apache::lonnet::delenv('form.counter');
1.166     albertel  682: 	    &Apache::lonnet::delenv('request.filename');
1.163     sakharuk  683: 	    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1.166     albertel  684: 		my %form;
                    685: 		$form{'grade_target'}='answer';
1.167     albertel  686: 		$form{'answer_output_mode'}='tex';
1.169     albertel  687: 		$form{'rndseed'}=$rndseed;
1.166     albertel  688: 		my $answer=&Apache::lonnet::ssi($currentURL,%form);
1.170     sakharuk  689: 		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1.163     sakharuk  690: 	    }
1.214     sakharuk  691: 	    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1.215     sakharuk  692: 		$texversion=&IndexCreation($texversion,$currentURL);
1.214     sakharuk  693: 	    }
1.219     sakharuk  694: 	    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
                    695: 		$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
                    696: 
                    697: 	    }
1.162     sakharuk  698: 	    $result .= $texversion;
                    699: 	    if ($currentURL=~m/\.page\s*$/) {
                    700: 		($result,$number_of_columns) = &page_cleanup($result);
                    701: 	    }
1.227     sakharuk  702:         } elsif ($currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
                    703:             #printing content of sequence from the construction space	
                    704: 	    my $flag_latex_header_remove = 'NO'; 
                    705: 	    my $rndseed=time;
1.231     albertel  706: 	    if ($helper->{'VARS'}->{'curseed'}) {
                    707: 		$rndseed=$helper->{'VARS'}->{'curseed'};
                    708: 	    }
1.227     sakharuk  709: 	    $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
                    710: 	    my $errtext=&Apache::lonratedt::mapread($currentURL);
                    711: 	    for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
                    712: 		$Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
                    713: 		my $urlp=$2;
                    714: 		if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
                    715: 		    my %form;
                    716: 		    $form{'grade_target'}='tex';
                    717: 		    $form{'textwidth'}=$LaTeXwidth;
1.232     sakharuk  718: 		    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
                    719: 		    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1.227     sakharuk  720: 		    $form{'rndseed'}=$rndseed;
                    721: 		    my $texversion=&Apache::lonnet::ssi($urlp,%form);
                    722: 		    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
                    723: 			my %form;
                    724: 			$form{'grade_target'}='answer';
                    725: 			$form{'answer_output_mode'}='tex';
                    726: 			$form{'rndseed'}=$rndseed;
1.232     sakharuk  727:                         if ($urlp=~/\/res\//) {$ENV{'request.state'}='published';}
                    728: 			####my $answer=' SSSSSS '.$ENV{'request.state'}.' FFFFFFF ';
1.227     sakharuk  729: 			my $answer=&Apache::lonnet::ssi($urlp,%form);
                    730: 			$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
                    731: 		    }
                    732: 		    if ($flag_latex_header_remove ne 'NO') {
                    733: 			$texversion = &latex_header_footer_remove($texversion);
                    734: 		    } else {
                    735: 			$texversion =~ s/\\end{document}//;
                    736: 		    }
                    737: 		    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
                    738: 			$texversion=&IndexCreation($texversion,$urlp);
                    739: 		    }
1.232     sakharuk  740: 		    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
1.227     sakharuk  741: 			$texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
                    742: 		    }
                    743: 		    $result.=$texversion;
                    744: 		    $flag_latex_header_remove = 'YES';
                    745: 		} elsif ($urlp=~/\.(sequence|page)$/) {
1.229     sakharuk  746: 		    $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
1.227     sakharuk  747: 		}  
                    748: 	    }
1.228     sakharuk  749: 	    if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
1.227     sakharuk  750: 	    $result .= '\end{document}';   
1.162     sakharuk  751: 	} else {
1.227     sakharuk  752: 	  $result.='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
1.207     sakharuk  753: 	  if ($currentURL=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
                    754: 	      $result.=$1;
                    755: 	  } elsif ($currentURL=~/\/ext\//) {
                    756: 	      $result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
                    757: 	  } else {
                    758: 	      $result.=$currentURL;
                    759: 	  }
                    760: 	  $result.=' \end{document}'
1.162     sakharuk  761: 	}
1.142     sakharuk  762:     } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
                    763:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
                    764:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')) { 
1.141     sakharuk  765:         #-- produce an output string
1.193     sakharuk  766: 	my %form=();	   
                    767: 	$form{'grade_target'}='tex';
                    768: 	$form{'textwidth'}=$LaTeXwidth;
                    769: 	$form{'problem_split'}=$parmhash{'problem_stream_switch'};
1.203     sakharuk  770: 	$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1.141     sakharuk  771: 	my $flag_latex_header_remove = 'NO';
                    772: 	my $flag_page_in_sequence = 'NO';
                    773: 	my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1.193     sakharuk  774: 	my $prevassignment='';
1.201     sakharuk  775: 	&Apache::lonnet::delenv('form.counter');
                    776: 	&Apache::lonxml::init_counter();
1.141     sakharuk  777: 	for (my $i=0;$i<=$#master_seq;$i++) {
1.236     albertel  778: 	    my (undef,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
1.237     albertel  779: 	    $urlp=&Apache::lonnet::clutter($urlp);
1.141     sakharuk  780: 	    if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
1.142     sakharuk  781: 		$selectionmade = 2;
                    782: 	    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
                    783: 		$selectionmade = 3;
                    784: 	    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
                    785: 		$selectionmade = 4;
1.141     sakharuk  786: 	    }
1.166     albertel  787: 	    $form{'symb'}=$master_seq[$i];
1.236     albertel  788: 	    my ($sequence)=&Apache::lonnet::decode_symb($master_seq[$i]);
                    789: 	    my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #tittle of the assignment which contains this problem
1.141     sakharuk  790: 	    #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
1.166     albertel  791: 	    my $texversion=&Apache::lonnet::ssi($urlp,%form);
1.141     sakharuk  792: 	    if ($urlp=~/\.page$/) {
                    793: 		($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
                    794: 		if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
                    795: 		$texversion =~ s/\\end{document}\d*/\\end{document}/;
                    796: 		$flag_page_in_sequence = 'YES';
                    797: 	    } 
                    798: 	    if ($flag_latex_header_remove ne 'NO') {
                    799: 		$texversion = &latex_header_footer_remove($texversion);
                    800: 	    } else {
                    801: 		$texversion =~ s/\\end{document}//;
1.171     sakharuk  802: 	    }
                    803: 	    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
                    804: 		my %form;
                    805: 		$form{'grade_target'}='answer';
                    806: 		$form{'answer_output_mode'}='tex';
                    807: 		my $answer=&Apache::lonnet::ssi($urlp,%form);
                    808: 		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1.141     sakharuk  809: 	    }
1.215     sakharuk  810: 	    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
                    811: 		$texversion=&IndexCreation($texversion,$urlp);
                    812: 	    }
1.198     sakharuk  813: 	    if (($selectionmade == 4) and ($assignment ne $prevassignment) and ($i>=1)) {
1.213     albertel  814: 		my ($name,$courseidinfo) = &get_name;
1.217     sakharuk  815: 		$courseidinfo = &get_course();
1.213     albertel  816: 		if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1.193     sakharuk  817: 		$prevassignment=$assignment;
1.213     albertel  818: 		$result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip -5 mm ';
1.193     sakharuk  819: 	    }
                    820: 	    $result .= $texversion;
1.141     sakharuk  821: 	    $flag_latex_header_remove = 'YES';   
                    822: 	}
                    823: 	&Apache::lonnet::delenv('form.counter');
                    824: 	if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}	
                    825: 	$result .= '\end{document}';
1.150     sakharuk  826:      } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') { 
                    827:      #-- prints assignments for whole class or for selected students  
                    828: 	 $selectionmade=5;
                    829: 	 my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
                    830: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
                    831: 	 #loop over students
                    832: 	 my $flag_latex_header_remove = 'NO'; 
                    833: 	 my %moreenv;
                    834: 	 $moreenv{'form.textwidth'}=$LaTeXwidth;
                    835: 	 &Apache::lonnet::appenv(%moreenv);
                    836: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
                    837: 	 foreach my $person (@students) {
                    838: 	    my $current_output = ''; 
1.140     sakharuk  839: #	    my ($usersection,$username,$userdomain) = split /:/,$person;
1.150     sakharuk  840: 	    my ($username,$userdomain) = split /:/,$person;
                    841: 	    my $fullname = &get_name($username,$userdomain);
1.196     sakharuk  842: 
1.197     sakharuk  843: 	    if ($parmhash{'anonymous_quiz'}=~/yes/) {$fullname=' ';} #put here something reasonable for anonymous exams or quiz
1.150     sakharuk  844:             #goes through all resources, checks if they are available for current student, and produces output   
1.201     sakharuk  845: 	    &Apache::lonnet::delenv('form.counter');
                    846: 	    &Apache::lonxml::init_counter();
1.150     sakharuk  847: 	    foreach my $curresline (@master_seq)  {
                    848: 		if ($curresline=~ m/\.(problem|exam|quiz|assess|survey|form|library)$/) {
1.233     www       849: 		    my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
1.150     sakharuk  850: 		    if (&Apache::lonnet::allowed('bre',$res_url)) {
                    851: 			my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,
                    852:                                                                         $ENV{'request.course.id'},'tex');
                    853: 			if ($flag_latex_header_remove eq 'YES') {
                    854: 			    $rendered = &latex_header_footer_remove($rendered);
                    855: 			} else {
                    856: 			    $rendered =~ s/\\end{document}//;
1.173     sakharuk  857: 			}
                    858: 			if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
                    859: 			    my %form;
                    860: 			    $form{'answer_output_mode'}='tex';
1.203     sakharuk  861: 			    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1.193     sakharuk  862: 			    my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$ENV{'request.course.id'},%form);
1.173     sakharuk  863: 			    $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
1.150     sakharuk  864: 			}
                    865: 			$current_output .= $rendered;
                    866: 		    }
                    867: 		    $flag_latex_header_remove = 'YES';
                    868: 		}
                    869: 	    }
1.213     albertel  870: 	    my $courseidinfo = &get_course();
                    871: 	    if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1.221     sakharuk  872: 	    my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
1.150     sakharuk  873: 	    if ($current_output=~/\\documentclass/) {
1.221     sakharuk  874: 		$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}}\\vskip 3 mm /;
1.150     sakharuk  875: 	    } else {
                    876: 		my $blanspages = '';
                    877: 		for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
1.221     sakharuk  878: 		$current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$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;
1.150     sakharuk  879: 	    }
                    880: 	    $result .= $current_output;
                    881: 	    &Apache::lonnet::delenv('form.counter');	    
                    882: 	    &Apache::lonxml::init_counter(); 
                    883: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                    884: 						    'last student '.$fullname);
                    885: 	}
                    886: 	&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                    887: 	$result .= '\end{document}';
                    888: 	&Apache::lonnet::delenv('form.textwidth');
1.151     sakharuk  889:     } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
                    890:     #prints selected problems from the subdirectory 
                    891: 	$selectionmade = 6;
                    892:         my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
1.154     sakharuk  893: 	@list_of_files=sort @list_of_files;
1.175     sakharuk  894: 	my $flag_latex_header_remove = 'NO'; 
                    895: 	my $rndseed=time;
1.230     albertel  896: 	if ($helper->{'VARS'}->{'curseed'}) {
                    897: 	    $rndseed=$helper->{'VARS'}->{'curseed'};
                    898: 	}
1.151     sakharuk  899: 	for (my $i=0;$i<=$#list_of_files;$i++) {
1.152     sakharuk  900: 	    my $urlp = $list_of_files[$i];
                    901: 	    if ($urlp=~/\//) {
1.166     albertel  902: 		my %form;
                    903: 		$form{'grade_target'}='tex';
                    904: 		$form{'textwidth'}=$LaTeXwidth;
1.175     sakharuk  905: 		$form{'rndseed'}=$rndseed;
1.152     sakharuk  906: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
                    907: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
                    908: 		} else {
                    909: 		    $urlp =~ s|^/home/httpd/html||;
                    910: 		}
1.166     albertel  911: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
1.174     sakharuk  912: 		if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
                    913: 		    my %form;
                    914: 		    $form{'grade_target'}='answer';
                    915: 		    $form{'answer_output_mode'}='tex';
1.203     sakharuk  916: 		    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1.174     sakharuk  917: 		    $form{'rndseed'}=$rndseed;
                    918: 		    my $answer=&Apache::lonnet::ssi($urlp,%form);
                    919: 		    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
                    920: 		}
1.151     sakharuk  921:                 #this chunck is responsible for printing the path to problem
1.152     sakharuk  922: 		my $newurlp = '';
                    923: 		my $HowMany = length($urlp)*2;
                    924: 		if ($HowMany > $LaTeXwidth) {
                    925: 		    my @temporrary = split '/',$urlp;
                    926: 		    my $HowManyNew = 0;
                    927: 		    for (my $ii=0;$ii<=$#temporrary;$ii++) {
                    928: 			if ($temporrary[$ii] ne '') {
                    929: 			    $HowManyNew += length($temporrary[$ii])*2;
                    930: 			    if ($HowManyNew < $LaTeXwidth ) {
                    931: 				$newurlp .=  '/'.$temporrary[$ii];
                    932: 			    } else {
                    933: 				$HowManyNew = 0;
                    934: 				$newurlp .=  '|\vskip -1 mm \noindent \verb|';
                    935: 				$ii--;
                    936: 			    }
                    937: 			}
                    938: 		    }
                    939: 		}
                    940: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
                    941: 		if ($flag_latex_header_remove ne 'NO') {
                    942: 		    $texversion = &latex_header_footer_remove($texversion);
                    943: 		} else {
                    944: 		    $texversion =~ s/\\end{document}//;
1.216     sakharuk  945: 		}
                    946: 		if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
                    947: 		    $texversion=&IndexCreation($texversion,$urlp);
1.152     sakharuk  948: 		}
1.219     sakharuk  949: 		if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
                    950: 		    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
                    951: 		    
                    952: 		}
1.152     sakharuk  953: 		$result .= $texversion;
                    954: 	    }
                    955: 	    $flag_latex_header_remove = 'YES';  
1.151     sakharuk  956: 	}
1.175     sakharuk  957: 	if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
1.152     sakharuk  958: 	$result .= '\end{document}';      	
1.140     sakharuk  959:     }
                    960: #-------------------------------------------------------- corrections for the different page formats
1.214     sakharuk  961:     $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'});
1.140     sakharuk  962:     $result = &latex_corrections($number_of_columns,$result);
1.190     sakharuk  963:     #changes page's parameters for the one column output 
1.195     sakharuk  964:     if ($numberofcolumns == 1) {
                    965: 	$result =~ s/\\textwidth= 9cm/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
                    966: 	$result =~ s/\\textheight 25\.9cm/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
                    967: 	$result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
                    968: 	$result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
                    969:     }
1.214     sakharuk  970:     if ($helper->{'VARS'}->{'TABLE_CONTENTS'} eq 'yes') {$selectionmade*=10;}
                    971:     if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
                    972: 	if ($selectionmade<10) {$selectionmade*=100;} else {$selectionmade*=10;}
                    973:     }
1.224     sakharuk  974:     if ($ENV{'request.role.adv'}) {$selectionmade*=10000;}
1.140     sakharuk  975: #-- writing .tex file in prtspool 
                    976:     my $temp_file;
                    977:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
                    978:     unless ($temp_file = Apache::File->new('>'.$filename)) {
                    979: 	$r->log_error("Couldn't open $filename for output $!");
                    980: 	return SERVER_ERROR; 
                    981:     } 
                    982:     print $temp_file $result;
                    983: 
                    984: $r->print(<<FINALEND);
                    985: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
                    986: </body>
                    987: </html>
                    988: FINALEND
                    989: }
                    990: 
                    991: 
                    992: 
1.3       sakharuk  993: sub handler {
                    994: 
                    995:     my $r = shift;
1.131     bowersj2  996:     my $helper;
1.114     bowersj2  997: 
1.150     sakharuk  998: #    my $loaderror=&Apache::lonnet::overloaderror($r);
                    999: #    if ($loaderror) { return $loaderror; }
                   1000: #    $loaderror=
                   1001: #       &Apache::lonnet::overloaderror($r,
                   1002: #         $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
                   1003: #    if ($loaderror) { return $loaderror; }
1.67      www      1004: 
1.177     sakharuk 1005:     my $result = printHelper($r);
                   1006:     if (!ref($result)) {
                   1007: 	return $result;
1.60      sakharuk 1008:     }
1.177     sakharuk 1009:     $helper = $result;
                   1010:    
                   1011: #	my $key; 
                   1012: #	foreach $key (keys %{$helper->{'VARS'}}) {
                   1013: #	    $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
                   1014: #	}
                   1015: #	return OK;
1.184     sakharuk 1016: 
                   1017:     my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
                   1018:     
1.207     sakharuk 1019: #	my $key; 
1.200     sakharuk 1020: #	foreach $key (keys %parmhash) {
                   1021: #	    $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
                   1022: #	}
                   1023: #	return OK;
1.184     sakharuk 1024: 
                   1025:     &output_data($r,$helper,\%parmhash);
1.2       sakharuk 1026:     return OK;
1.60      sakharuk 1027: } 
1.2       sakharuk 1028: 
1.131     bowersj2 1029: use Apache::lonhelper;
1.130     sakharuk 1030: 
1.223     bowersj2 1031: sub addMessage {
                   1032:     my $text = shift;
                   1033:     my $paramHash = Apache::lonhelper::getParamHash();
                   1034:     $paramHash->{MESSAGE_TEXT} = $text;
                   1035:     Apache::lonhelper::message->new();
                   1036: }
                   1037: 
1.238     bowersj2 1038: use Data::Dumper;
                   1039: 
1.131     bowersj2 1040: sub printHelper {
1.115     bowersj2 1041:     my $r = shift;
                   1042: 
                   1043:     if ($ENV{'request.course.id'}) {
1.131     bowersj2 1044: 	my $fn=$ENV{'request.course.fn'};
                   1045: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
1.115     bowersj2 1046:     }
                   1047: 
                   1048:     if ($r->header_only) {
1.131     bowersj2 1049:         if ($ENV{'browser.mathml'}) {
                   1050:             $r->content_type('text/xml');
                   1051:         } else {
                   1052:             $r->content_type('text/html');
                   1053:         }
                   1054:         $r->send_http_header;
                   1055:         return OK;
1.115     bowersj2 1056:     }
                   1057: 
1.131     bowersj2 1058:     # Send header, nocache
1.115     bowersj2 1059:     if ($ENV{'browser.mathml'}) {
1.131     bowersj2 1060:         $r->content_type('text/xml');
1.115     bowersj2 1061:     } else {
1.131     bowersj2 1062:         $r->content_type('text/html');
1.115     bowersj2 1063:     }
                   1064:     &Apache::loncommon::no_cache($r);
                   1065:     $r->send_http_header;
                   1066:     $r->rflush();
                   1067: 
1.131     bowersj2 1068:     # Unfortunately, this helper is so complicated we have to
                   1069:     # write it by hand
                   1070: 
                   1071:     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
                   1072:     
1.176     bowersj2 1073:     my $helper = Apache::lonhelper::helper->new("Printing Helper");
1.146     bowersj2 1074:     $helper->declareVar('symb');
1.156     bowersj2 1075:     $helper->declareVar('postdata');    
1.230     albertel 1076:     $helper->declareVar('curseed');    
1.156     bowersj2 1077:     $helper->declareVar('filename');
                   1078:     $helper->declareVar('construction');
1.178     sakharuk 1079:     $helper->declareVar('assignment');
1.131     bowersj2 1080:     
                   1081:     # This will persistently load in the data we want from the
                   1082:     # very first screen.
1.156     bowersj2 1083:     # Detect whether we're coming from construction space
1.208     www      1084:     if ($ENV{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
1.235     bowersj2 1085:         $helper->{VARS}->{'filename'} = "~$1/$2";
1.156     bowersj2 1086:         $helper->{VARS}->{'construction'} = 1;
                   1087:     } else {
                   1088:         if ($ENV{'form.postdata'}) {
                   1089:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
                   1090:         }
                   1091:         if ($ENV{'form.symb'}) {
                   1092:             $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
                   1093:         }
                   1094:         if ($ENV{'form.url'}) {
                   1095:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
                   1096:         }
1.157     bowersj2 1097:     }
1.156     bowersj2 1098: 
1.146     bowersj2 1099:     if ($ENV{'form.symb'}) {
                   1100:         $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
                   1101:     }
                   1102:     if ($ENV{'form.url'}) {
1.140     sakharuk 1103:         $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
1.153     sakharuk 1104: 
1.140     sakharuk 1105:     }
1.146     bowersj2 1106:     
1.115     bowersj2 1107:     my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
1.178     sakharuk 1108:     if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
1.140     sakharuk 1109: 
1.156     bowersj2 1110:     
1.146     bowersj2 1111:     # Extract map
                   1112:     my $symb = $helper->{VARS}->{'symb'};
1.156     bowersj2 1113:     my ($map, $id, $url);
                   1114:     my $subdir;
                   1115: 
                   1116:     # Get the resource name from construction space
                   1117:     if ($helper->{VARS}->{'construction'}) {
                   1118:         $resourceTitle = substr($helper->{VARS}->{'filename'}, 
                   1119:                                 rindex($helper->{VARS}->{'filename'}, '/')+1);
                   1120:         $subdir = substr($helper->{VARS}->{'filename'},
                   1121:                          0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
                   1122:     } else {
1.233     www      1123:         ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
1.156     bowersj2 1124:         $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
1.146     bowersj2 1125: 
1.156     bowersj2 1126:         if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
1.238     bowersj2 1127:             my $postdata = $helper->{VARS}->{'postdata'};
                   1128:             $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
1.156     bowersj2 1129:         }
                   1130:         $subdir = &Apache::lonnet::filelocation("", $url);
1.128     bowersj2 1131:     }
1.230     albertel 1132:     if (!$helper->{VARS}->{'curseed'} && $ENV{'form.curseed'}) {
                   1133: 	$helper->{VARS}->{'curseed'}=$ENV{'form.curseed'};
                   1134:     }
1.115     bowersj2 1135: 
1.192     bowersj2 1136:     my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
1.235     bowersj2 1137:     my $userPriviledged = ($ENV{'request.role'}=~m/^cc\./ or
                   1138: 			   $ENV{'request.role'}=~m/^in\./ or
                   1139: 			   $ENV{'request.role'}=~m/^ta\./);
1.192     bowersj2 1140: 
1.131     bowersj2 1141:     Apache::lonhelper::registerHelperTags();
1.119     bowersj2 1142: 
1.131     bowersj2 1143:     # "Delete everything after the last slash."
1.119     bowersj2 1144:     $subdir =~ s|/[^/]+$||;
1.162     sakharuk 1145:     if (not $helper->{VARS}->{'construction'}) {
                   1146: 	$subdir='/home/httpd/html/res/'.$subdir;
1.153     sakharuk 1147:     }
1.189     bowersj2 1148:     # "Remove all duplicate slashes."
                   1149:     $subdir =~ s|/+|/|g;
1.119     bowersj2 1150: 
1.131     bowersj2 1151:     # What can be printed is a very dynamic decision based on
                   1152:     # lots of factors. So we need to dynamically build this list.
                   1153:     # To prevent security leaks, states are only added to the wizard
                   1154:     # if they can be reached, which ensures manipulating the form input
                   1155:     # won't allow anyone to reach states they shouldn't have permission
                   1156:     # to reach.
                   1157: 
                   1158:     # printChoices is tracking the kind of printing the user can
                   1159:     # do, and will be used in a choices construction later.
                   1160:     # In the meantime we will be adding states and elements to
                   1161:     # the helper by hand.
                   1162:     my $printChoices = [];
                   1163:     my $paramHash;
1.130     sakharuk 1164: 
1.235     bowersj2 1165:     if ($resourceTitle && $helper->{VARS}->{'postdata'}) {
                   1166:         push @{$printChoices}, ["<b>$resourceTitle</b> (what you just saw on the screen)", 'current_document', 'PAGESIZE'];
1.156     bowersj2 1167:     }
                   1168: 
1.187     www      1169: #    $r->print($helper->{VARS}->{'postdata'});
1.130     sakharuk 1170: 
1.238     bowersj2 1171:     # Useful filter strings
                   1172:     my $isProblem = '$res->is_problem()';
                   1173:     $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
                   1174:     my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
                   1175:     my $isNotMap = '!$res->is_map()';
                   1176:     $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
                   1177:     my $isMap = '$res->is_map()';
                   1178:     my $symbFilter = '$res->symb()';
                   1179:     my $urlValue = '$res->src()';
                   1180: 
                   1181:     $helper->declareVar('SEQUENCE');
                   1182: 
                   1183:     # Useful for debugging: Dump the help vars
                   1184:     #$r->print(Dumper($helper->{VARS}));
                   1185:     #$r->print($map);
                   1186: 
1.131     bowersj2 1187:     # If we're in a sequence...
1.235     bowersj2 1188:     if (($helper->{'VARS'}->{'construction'} ne '1') &&
1.238     bowersj2 1189: 	$helper->{VARS}->{'postdata'} && $sequenceTitle) {
1.131     bowersj2 1190:         # Allow problems from sequence
1.238     bowersj2 1191:         push @{$printChoices}, ["<b>Problems</b> in $sequenceTitle", 'map_problems', 'CHOOSE_PROBLEMS'];
1.131     bowersj2 1192:         # Allow all resources from sequence
1.238     bowersj2 1193:         push @{$printChoices}, ["<b>Resources</b> in $sequenceTitle", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
1.130     sakharuk 1194: 
1.131     bowersj2 1195:         my $helperFragment = <<HELPERFRAGMENT;
1.155     sakharuk 1196:   <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
                   1197:     <message>(mark them then click "next" button) <br /></message>
1.234     bowersj2 1198:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
1.144     bowersj2 1199:       <nextstate>PAGESIZE</nextstate>
1.192     bowersj2 1200:       <filterfunc>return $isProblem;</filterfunc>
1.131     bowersj2 1201:       <mapurl>$map</mapurl>
1.238     bowersj2 1202:       <valuefunc>return $symbFilter;</valuefunc>
1.131     bowersj2 1203:       </resource>
                   1204:     </state>
                   1205: 
1.155     sakharuk 1206:   <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
                   1207:     <message>(mark them then click "next" button) <br /></message>
1.234     bowersj2 1208:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
1.144     bowersj2 1209:       <nextstate>PAGESIZE</nextstate>
1.145     bowersj2 1210:       <filterfunc>return $isNotMap;</filterfunc>
1.131     bowersj2 1211:       <mapurl>$map</mapurl>
1.238     bowersj2 1212:       <valuefunc>return $symbFilter;</valuefunc>
1.131     bowersj2 1213:       </resource>
                   1214:     </state>
                   1215: HELPERFRAGMENT
1.121     bowersj2 1216: 
1.131     bowersj2 1217:         &Apache::lonxml::xmlparse($r, 'helper', $helperFragment); 
1.121     bowersj2 1218:     }
                   1219: 
                   1220:     # If the user is priviledged, allow them to print all 
                   1221:     # problems in the course, optionally for selected students
1.235     bowersj2 1222:     if ($userPriviledged && ($helper->{VARS}->{'postdata'}=~/\/res\//)) { 
1.238     bowersj2 1223:         push @{$printChoices}, ['Problems from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
                   1224: 	if ($sequenceTitle) {
                   1225: 	    push @{$printChoices}, ["Problems from $sequenceTitle for <b>selected students</b>", 'problems_for_students', 'CHOOSE_STUDENTS'];
                   1226: 	}
1.131     bowersj2 1227: 
                   1228:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
1.155     sakharuk 1229:   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
                   1230:     <message>(mark them then click "next" button) <br /></message>
1.234     bowersj2 1231:     <resource variable="RESOURCES" multichoice="1"
                   1232: 	suppressEmptySequences='1' addstatus="1">
1.144     bowersj2 1233:       <nextstate>PAGESIZE</nextstate>
1.192     bowersj2 1234:       <filterfunc>return $isProblemOrMap;</filterfunc>
                   1235:       <choicefunc>return $isProblem;</choicefunc>
1.238     bowersj2 1236:       <valuefunc>return $symbFilter;</valuefunc>
1.132     bowersj2 1237:       </resource>
                   1238:     </state>
                   1239: 
1.223     bowersj2 1240:   <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
1.144     bowersj2 1241:     <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
1.155     sakharuk 1242:     <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
1.234     bowersj2 1243:     <resource variable="RESOURCES" multichoice="1" addstatus="1">
1.147     bowersj2 1244:       <filterfunc>return $isProblem</filterfunc>
1.148     bowersj2 1245:       <mapurl>$map</mapurl>
1.238     bowersj2 1246:       <valuefunc>return $symbFilter</valuefunc>
1.147     bowersj2 1247:       </resource>
1.155     sakharuk 1248:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
1.149     bowersj2 1249:     <choices variable="EMPTY_PAGES">
1.204     sakharuk 1250:       <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
                   1251:       <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
                   1252:       <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
                   1253:       <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
1.149     bowersj2 1254:       </choices>
1.131     bowersj2 1255:     </state>
                   1256: CHOOSE_STUDENTS
1.121     bowersj2 1257:     }
                   1258: 
                   1259:     # FIXME: That RE should come from a library somewhere.
1.238     bowersj2 1260:     if ((((&Apache::lonnet::allowed('bre',$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 $subdir ne '/home/httpd/html/res/') {    
1.155     sakharuk 1261:         push @{$printChoices}, ["Problems from current subdirectory <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
1.238     bowersj2 1262: 
1.131     bowersj2 1263:         my $f = '$filename';
1.139     bowersj2 1264:         my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
1.155     sakharuk 1265:   <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
                   1266:     <message>(mark them then click "next" button) <br /></message>
1.138     bowersj2 1267:     <files variable="FILES" multichoice='1'>
1.144     bowersj2 1268:       <nextstate>PAGESIZE</nextstate>
1.138     bowersj2 1269:       <filechoice>return '$subdir';</filechoice>
1.139     bowersj2 1270: CHOOSE_FROM_SUBDIR
                   1271:         
1.238     bowersj2 1272:         # this is broken up because I really want interpolation above,
                   1273:         # and I really DON'T want it below
1.139     bowersj2 1274:         $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
1.225     bowersj2 1275:       <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
                   1276: 	  $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
1.131     bowersj2 1277:       </filefilter>
1.138     bowersj2 1278:       </files>
1.131     bowersj2 1279:     </state>
                   1280: CHOOSE_FROM_SUBDIR
1.139     bowersj2 1281:         &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
1.131     bowersj2 1282:     }
1.238     bowersj2 1283: 
                   1284:     # Allow the user to select any sequence in the course, feed it to
                   1285:     # another resource selector for that sequence
1.239   ! bowersj2 1286:     if (!$helper->{VARS}->{'construction'}) {
        !          1287: 	push @$printChoices, ["Resources from <b>selected sequence</b> in course",
        !          1288: 			      'map_problems_pages', 'CHOOSE_SEQUENCE'];
        !          1289: 	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
1.238     bowersj2 1290:   <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
                   1291:     <message>Select the sequence to print resources from:</message>
                   1292:     <resource variable="SEQUENCE">
                   1293:       <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
                   1294:       <filterfunc>return \$res->is_sequence;</filterfunc>
                   1295:       <valuefunc>return $urlValue;</valuefunc>
                   1296:       </resource>
                   1297:     </state>
                   1298:   <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
                   1299:     <message>(mark desired resources then click "next" button) <br /></message>
                   1300:     <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1">
                   1301:       <nextstate>PAGESIZE</nextstate>
                   1302:       <filterfunc>return $isProblem</filterfunc>
                   1303:       <mapurl evaluate='1'>return $helper->{VARS}->{'SEQUENCE'};</mapurl>
                   1304:       <valuefunc>return $symbFilter;</valuefunc>
                   1305:       </resource>
                   1306:     </state>
                   1307: CHOOSE_FROM_ANY_SEQUENCE
1.239   ! bowersj2 1308: }
1.131     bowersj2 1309: 
                   1310:     # Generate the first state, to select which resources get printed.
1.223     bowersj2 1311:     Apache::lonhelper::state->new("START", "Select Printing Options:");
1.131     bowersj2 1312:     $paramHash = Apache::lonhelper::getParamHash();
1.155     sakharuk 1313:     $paramHash->{MESSAGE_TEXT} = "";
1.131     bowersj2 1314:     Apache::lonhelper::message->new();
                   1315:     $paramHash = Apache::lonhelper::getParamHash();
                   1316:     $paramHash->{'variable'} = 'PRINT_TYPE';
1.137     bowersj2 1317:     $helper->declareVar('PRINT_TYPE');
1.131     bowersj2 1318:     $paramHash->{CHOICES} = $printChoices;
                   1319:     Apache::lonhelper::choices->new();
1.161     bowersj2 1320: 
1.223     bowersj2 1321:     my $startedTable = 0; # have we started an HTML table yet? (need
                   1322:                           # to close it later)
                   1323: 
1.170     sakharuk 1324:     if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
                   1325: 	($helper->{VARS}->{'construction'} eq '1')) {
1.223     bowersj2 1326: 	addMessage("<hr width='33%' /><table><tr><td align='right'>Print With Answers:</td><td>");
1.161     bowersj2 1327:         $paramHash = Apache::lonhelper::getParamHash();
1.162     sakharuk 1328: 	$paramHash->{'variable'} = 'ANSWER_TYPE';   
                   1329: 	$helper->declareVar('ANSWER_TYPE');         
1.161     bowersj2 1330:         $paramHash->{CHOICES} = [
1.229     sakharuk 1331:                                    ['No', 'yes'],
                   1332:                                    ['Yes', 'no'] ];
1.210     sakharuk 1333:         Apache::lonhelper::dropdown->new();
1.223     bowersj2 1334: 	addMessage("</td></tr>");
                   1335: 	$startedTable = 1;
1.161     bowersj2 1336:     }
1.209     sakharuk 1337: 
1.203     sakharuk 1338:     if ($ENV{'request.role.adv'}) {
1.223     bowersj2 1339: 	if (!$startedTable) {
                   1340: 	    addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
                   1341: 	    $startedTable = 1;
                   1342: 	} else {
                   1343: 	    addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
                   1344: 	}
1.203     sakharuk 1345:         $paramHash = Apache::lonhelper::getParamHash();
                   1346: 	$paramHash->{'variable'} = 'LATEX_TYPE';   
                   1347: 	$helper->declareVar('LATEX_TYPE');  
                   1348: 	if ($helper->{VARS}->{'construction'} eq '1') {       
                   1349: 	    $paramHash->{CHOICES} = [
1.223     bowersj2 1350: 				     ['standard LaTeX mode', 'standard'], 
                   1351: 				     ['LaTeX batchmode', 'batchmode'], ];
1.203     sakharuk 1352: 	} else {
                   1353: 	    $paramHash->{CHOICES} = [
1.223     bowersj2 1354: 				     ['LaTeX batchmode', 'batchmode'],
                   1355: 				     ['standard LaTeX mode', 'standard'] ];
1.203     sakharuk 1356: 	}
1.210     sakharuk 1357:         Apache::lonhelper::dropdown->new();
1.218     sakharuk 1358:  
1.223     bowersj2 1359: 	addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
1.209     sakharuk 1360:         $paramHash = Apache::lonhelper::getParamHash();
                   1361: 	$paramHash->{'variable'} = 'TABLE_CONTENTS';   
                   1362: 	$helper->declareVar('TABLE_CONTENTS');         
                   1363:         $paramHash->{CHOICES} = [
1.223     bowersj2 1364:                                    ['No', 'no'],
                   1365:                                    ['Yes', 'yes'] ];
1.210     sakharuk 1366:         Apache::lonhelper::dropdown->new();
1.223     bowersj2 1367: 	addMessage("</td></tr>");
1.214     sakharuk 1368:         
1.220     sakharuk 1369: 	if (not $helper->{VARS}->{'construction'}) {
1.223     bowersj2 1370: 	    addMessage("<tr><td align='right'>Print Index: </td><td>");
1.220     sakharuk 1371: 	    $paramHash = Apache::lonhelper::getParamHash();
                   1372: 	    $paramHash->{'variable'} = 'TABLE_INDEX';   
                   1373: 	    $helper->declareVar('TABLE_INDEX');         
                   1374: 	    $paramHash->{CHOICES} = [
1.223     bowersj2 1375: 				     ['No', 'no'],
                   1376: 				     ['Yes', 'yes'] ];
1.220     sakharuk 1377: 	    Apache::lonhelper::dropdown->new();
1.223     bowersj2 1378: 	    addMessage("</td></tr>");
1.220     sakharuk 1379: 	}
1.219     sakharuk 1380: 
                   1381: 	if ($helper->{VARS}->{'construction'}) {
1.223     bowersj2 1382: 	    addMessage("<tr><td align='right'>Print With URL: </td><td>");
1.219     sakharuk 1383: 	    $paramHash = Apache::lonhelper::getParamHash();
                   1384: 	    $paramHash->{'variable'} = 'CONSTR_RESOURSE_URL';   
                   1385: 	    $helper->declareVar('CONSTR_RESOURSE_URL');         
                   1386: 	    $paramHash->{CHOICES} = [
1.223     bowersj2 1387: 				     ['No', 'no'],
                   1388: 				     ['Yes', 'yes'] ];
1.219     sakharuk 1389: 	    Apache::lonhelper::dropdown->new();
1.223     bowersj2 1390: 	    addMessage("</td></tr>");
1.230     albertel 1391: 	}
                   1392: 	if ($helper->{'VARS'}->{'construction'}) { 
                   1393: 	    my $xmlfrag .= <<'RNDSEED';
                   1394: 	    <message><tr><td align='right'>Use random seed: </td><td></message>
                   1395: 	    <string variable="curseed" size="15" maxlength="15">
                   1396: 		<defaultvalue>
                   1397: 	            return $helper->{VARS}->{'curseed'};
                   1398: 	        </defaultvalue>
                   1399: 	     </string>
                   1400:              <message></td></tr></message>
                   1401: RNDSEED
                   1402:             &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
1.219     sakharuk 1403: 	}
1.223     bowersj2 1404:     }
1.218     sakharuk 1405: 
1.223     bowersj2 1406:     if ($startedTable) {
                   1407: 	addMessage("</table>");
1.215     sakharuk 1408:     }
1.161     bowersj2 1409: 
1.131     bowersj2 1410:     Apache::lonprintout::page_format_state->new("FORMAT");
                   1411: 
1.144     bowersj2 1412:     # Generate the PAGESIZE state which will offer the user the margin
                   1413:     # choices if they select one column
                   1414:     Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
                   1415:     Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
                   1416: 
                   1417: 
1.131     bowersj2 1418:     $helper->process();
                   1419: 
                   1420:     # MANUAL BAILOUT CONDITION:
                   1421:     # If we're in the "final" state, bailout and return to handler
                   1422:     if ($helper->{STATE} eq 'FINAL') {
                   1423:         return $helper;
                   1424:     }    
1.130     sakharuk 1425: 
1.131     bowersj2 1426:     $r->print($helper->display());
1.130     sakharuk 1427: 
1.131     bowersj2 1428:     Apache::lonhelper::unregisterHelperTags();
1.115     bowersj2 1429: 
                   1430:     untie %hash;
                   1431: 
                   1432:     return OK;
                   1433: }
                   1434: 
1.1       www      1435: 
                   1436: 1;
1.119     bowersj2 1437: 
                   1438: package Apache::lonprintout::page_format_state;
                   1439: 
                   1440: =pod
                   1441: 
1.131     bowersj2 1442: =head1 Helper element: page_format_state
                   1443: 
                   1444: See lonhelper.pm documentation for discussion of the helper framework.
1.119     bowersj2 1445: 
1.131     bowersj2 1446: Apache::lonprintout::page_format_state is an element that gives the 
                   1447: user an opportunity to select the page layout they wish to print 
                   1448: with: Number of columns, portrait/landscape, and paper size. If you 
                   1449: want to change the paper size choices, change the @paperSize array 
                   1450: contents in this package.
1.119     bowersj2 1451: 
1.131     bowersj2 1452: page_format_state is always directly invoked in lonprintout.pm, so there
                   1453: is no tag interface. You actually pass parameters to the constructor.
1.119     bowersj2 1454: 
                   1455: =over 4
                   1456: 
1.131     bowersj2 1457: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
1.119     bowersj2 1458: 
                   1459: =back
                   1460: 
                   1461: =cut
                   1462: 
1.131     bowersj2 1463: use Apache::lonhelper;
1.119     bowersj2 1464: 
                   1465: no strict;
1.131     bowersj2 1466: @ISA = ("Apache::lonhelper::element");
1.119     bowersj2 1467: use strict;
                   1468: 
                   1469: my $maxColumns = 2;
                   1470: my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]", 
                   1471:                  "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
                   1472:                  "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]", 
                   1473:                  "A5 [148x210 mm]", "A6 [105x148 mm]" );
                   1474: 
                   1475: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
                   1476: #                   Paper type
                   1477: 
                   1478: sub new { 
1.131     bowersj2 1479:     my $self = Apache::lonhelper::element->new();
1.119     bowersj2 1480: 
1.135     bowersj2 1481:     shift;
                   1482: 
1.131     bowersj2 1483:     $self->{'variable'} = shift;
1.134     bowersj2 1484:     my $helper = Apache::lonhelper::getHelper();
1.135     bowersj2 1485:     $helper->declareVar($self->{'variable'});
1.131     bowersj2 1486:     bless($self);
1.119     bowersj2 1487:     return $self;
                   1488: }
                   1489: 
                   1490: sub render {
                   1491:     my $self = shift;
1.131     bowersj2 1492:     my $helper = Apache::lonhelper::getHelper();
1.119     bowersj2 1493:     my $result = '';
1.131     bowersj2 1494:     my $var = $self->{'variable'};
1.119     bowersj2 1495: 
                   1496:     $result .= <<STATEHTML;
                   1497: 
1.223     bowersj2 1498: <hr width="33%" />
1.119     bowersj2 1499: <table cellpadding="3">
                   1500:   <tr>
1.155     sakharuk 1501:     <td align="center"><b>Page layout</b></td>
                   1502:     <td align="center"><b>Number of columns</b></td>
1.131     bowersj2 1503:     <td align="center"><b>Paper type</b></td>
1.119     bowersj2 1504:   </tr>
                   1505:   <tr>
                   1506:     <td>
1.155     sakharuk 1507:       <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
                   1508:       <input type="radio" name="${var}.layout" value="P" checked='1'  /> Portrait
1.119     bowersj2 1509:     </td>
1.155     sakharuk 1510:     <td align="center">
1.119     bowersj2 1511:       <select name="${var}.cols">
                   1512: STATEHTML
                   1513: 
                   1514:     my $i;
                   1515:     for ($i = 1; $i <= $maxColumns; $i++) {
1.144     bowersj2 1516:         if ($i == 2) {
1.119     bowersj2 1517:             $result .= "<option value='$i' selected>$i</option>\n";
                   1518:         } else {
                   1519:             $result .= "<option value='$i'>$i</option>\n";
                   1520:         }
                   1521:     }
                   1522: 
                   1523:     $result .= "</select></td><td>\n";
                   1524:     $result .= "<select name='${var}.paper'>\n";
                   1525: 
                   1526:     $i = 0;
                   1527:     foreach (@paperSize) {
1.144     bowersj2 1528:         if ($i == 0) {
1.131     bowersj2 1529:             $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
1.119     bowersj2 1530:         } else {
1.131     bowersj2 1531:             $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
1.119     bowersj2 1532:         }
                   1533:         $i++;
                   1534:     }
                   1535: 
                   1536:     $result .= "</select></td></tr></table>";
                   1537:     return $result;
1.135     bowersj2 1538: }
                   1539: 
                   1540: sub postprocess {
                   1541:     my $self = shift;
                   1542: 
                   1543:     my $var = $self->{'variable'};
1.136     bowersj2 1544:     my $helper = Apache::lonhelper->getHelper();
1.135     bowersj2 1545:     $helper->{VARS}->{$var} = 
1.136     bowersj2 1546:         $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
                   1547:         $ENV{"form.$var.paper"};
1.135     bowersj2 1548:     return 1;
1.119     bowersj2 1549: }
                   1550: 
                   1551: 1;
1.144     bowersj2 1552: 
                   1553: package Apache::lonprintout::page_size_state;
                   1554: 
                   1555: =pod
                   1556: 
                   1557: =head1 Helper element: page_size_state
                   1558: 
                   1559: See lonhelper.pm documentation for discussion of the helper framework.
                   1560: 
                   1561: Apache::lonprintout::page_size_state is an element that gives the 
                   1562: user the opportunity to further refine the page settings if they
                   1563: select a single-column page.
                   1564: 
                   1565: page_size_state is always directly invoked in lonprintout.pm, so there
                   1566: is no tag interface. You actually pass parameters to the constructor.
                   1567: 
                   1568: =over 4
                   1569: 
                   1570: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
                   1571: 
                   1572: =back
                   1573: 
                   1574: =cut
                   1575: 
                   1576: use Apache::lonhelper;
                   1577: 
                   1578: no strict;
                   1579: @ISA = ("Apache::lonhelper::element");
                   1580: use strict;
                   1581: 
                   1582: 
                   1583: 
                   1584: sub new { 
                   1585:     my $self = Apache::lonhelper::element->new();
                   1586: 
                   1587:     shift; # disturbs me (probably prevents subclassing) but works (drops
                   1588:            # package descriptor)... - Jeremy
                   1589: 
                   1590:     $self->{'variable'} = shift;
                   1591:     my $helper = Apache::lonhelper::getHelper();
                   1592:     $helper->declareVar($self->{'variable'});
                   1593: 
                   1594:     # The variable name of the format element, so we can look into 
                   1595:     # $helper->{VARS} to figure out whether the columns are one or two
                   1596:     $self->{'formatvar'} = shift;
                   1597: 
                   1598:     # The state to transition to after selection, or after discovering
                   1599:     # the cols are not set to 1
                   1600:     $self->{NEXTSTATE} = shift;
                   1601:     bless($self);
                   1602:     return $self;
                   1603: }
                   1604: 
                   1605: sub render {
                   1606:     my $self = shift;
                   1607:     my $helper = Apache::lonhelper::getHelper();
                   1608:     my $result = '';
                   1609:     my $var = $self->{'variable'};
                   1610: 
                   1611:     if (defined $self->{ERROR_MSG}) {
                   1612:         $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
                   1613:     }
                   1614: 
                   1615:     $result .= <<ELEMENTHTML;
                   1616: 
                   1617: <p>How should the column be formatted?</p>
                   1618: 
                   1619: <table cellpadding='3'>
                   1620:   <tr>
                   1621:     <td align='right'><b>Width</b>:</td>
                   1622:     <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
                   1623:     <td align='left'>
                   1624:       <select name='$var.widthunit'>
                   1625:         <option>cm</option><option>in</option>
                   1626:       </select>
                   1627:     </td>
                   1628:   </tr>
                   1629:   <tr>
                   1630:     <td align='right'><b>Height</b>:</td>
                   1631:     <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
                   1632:     <td align='left'>
                   1633:       <select name='$var.heightunit'>
                   1634:         <option>cm</option><option>in</option>
                   1635:       </select>
                   1636:     </td>
                   1637:   </tr>
                   1638:   <tr>
                   1639:     <td align='right'><b>Left margin</b>:</td>
                   1640:     <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
                   1641:     <td align='left'>
1.186     bowersj2 1642:       <select name='$var.lmarginunit'>
1.144     bowersj2 1643:         <option>cm</option><option>in</option>
                   1644:       </select>
                   1645:     </td>
                   1646:   </tr>
                   1647: </table>
                   1648: 
                   1649: <p>Hint: Some instructors like to leave scratch space for the student by
                   1650: making the width much smaller then the width of the page.</p>
                   1651: 
                   1652: ELEMENTHTML
                   1653: 
                   1654:     return $result;
                   1655: }
                   1656: 
                   1657: # If the user didn't select 1 column, skip this state.
                   1658: sub preprocess {
                   1659:     my $self = shift;
                   1660:     my $helper = Apache::lonhelper::getHelper();
                   1661: 
                   1662:     my $format = $helper->{VARS}->{$self->{'formatvar'}};
                   1663:     if (substr($format, 2, 1) ne '1') {
                   1664:         $helper->changeState($self->{NEXTSTATE});
                   1665:     }
                   1666:    
                   1667:     return 1;
                   1668: }
                   1669: 
                   1670: sub postprocess {
                   1671:     my $self = shift;
                   1672: 
                   1673:     my $var = $self->{'variable'};
                   1674:     my $helper = Apache::lonhelper->getHelper();
                   1675:     my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; 
                   1676:     my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; 
                   1677:     my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; 
                   1678:     $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; 
                   1679:     $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; 
                   1680:     $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; 
                   1681: 
                   1682:     my $error = '';
                   1683: 
                   1684:     # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
                   1685:     # by an optional period, followed by digits, ending the string
                   1686: 
                   1687:     if ($width !~  /^-?[0-9]+(\.[0-9]*)?$/) {
                   1688:         $error .= "Invalid width; please type only a number.<br />\n";
                   1689:     }
                   1690:     if ($height !~  /^-?[0-9]+(\.[0-9]*)?$/) {
                   1691:         $error .= "Invalid height; please type only a number.<br />\n";
                   1692:     }
                   1693:     if ($lmargin !~  /^-?[0-9]+(\.[0-9]*)?$/) {
                   1694:         $error .= "Invalid left margin; please type only a number.<br />\n";
                   1695:     }
                   1696: 
                   1697:     if (!$error) {
                   1698:         Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
                   1699:         return 1;
                   1700:     } else {
                   1701:         $self->{ERROR_MSG} = $error;
                   1702:         return 0;
                   1703:     }
                   1704: }
                   1705: 
                   1706: 
1.119     bowersj2 1707: 
1.1       www      1708: __END__
1.6       sakharuk 1709: 

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