1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.423 2006/02/24 22:37:45 foxr Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #
29: package Apache::lonprintout;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use Apache::lonxml;
34: use Apache::lonnet;
35: use Apache::loncommon;
36: use Apache::inputtags;
37: use Apache::grades;
38: use Apache::edit;
39: use Apache::File();
40: use Apache::lonnavmaps;
41: use Apache::lonratedt;
42: use POSIX qw(strftime);
43: use Apache::lonlocal;
44:
45: my %perm;
46:
47: #
48: # Convert a numeric code to letters
49: #
50: sub num_to_letters {
51: my ($num) = @_;
52: my @nums= split('',$num);
53: my @num_to_let=('A'..'Z');
54: my $word;
55: foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
56: return $word;
57: }
58: # Convert a letter code to numeric.
59: #
60: sub letters_to_num {
61: my ($letters) = @_;
62: my @letters = split('', uc($letters));
63: my %substitution;
64: my $digit = 0;
65: foreach my $letter ('A'..'J') {
66: $substitution{$letter} = $digit;
67: $digit++;
68: }
69: # The substitution is done as below to preserve leading
70: # zeroes which are needed to keep the code size exact
71: #
72: my $result ="";
73: foreach my $letter (@letters) {
74: $result.=$substitution{$letter};
75: }
76: return $result;
77: }
78:
79: # Determine if a code is a valid numeric code. Valid
80: # numeric codes must be comprised entirely of digits and
81: # have a correct number of digits.
82: #
83: # Parameters:
84: # value - proposed code value.
85: # num_digits - Number of digits required.
86: #
87: sub is_valid_numeric_code {
88: my ($value, $num_digits) = @_;
89: # Remove leading/trailing whitespace;
90: $value =~ s/^\s*//g;
91: $value =~ s/\s*$//g;
92:
93: # All digits?
94: if ($value !~ /^[0-9]+$/) {
95: return "Numeric code $value has invalid characters - must only be digits";
96: }
97: if (length($value) != $num_digits) {
98: return "Numeric code $value incorrect number of digits (correct = $num_digits)";
99: }
100: return undef;
101: }
102: # Determines if a code is a valid alhpa code. Alpha codes
103: # are ciphers that map [A-J,a-j] -> 0..9 0..9.
104: # They also have a correct digit count.
105: # Parameters:
106: # value - Proposed code value.
107: # num_letters - correct number of letters.
108: # Note:
109: # leading and trailing whitespace are ignored.
110: #
111: sub is_valid_alpha_code {
112: my ($value, $num_letters) = @_;
113:
114: # strip leading and trailing spaces.
115:
116: $value =~ s/^\s*//g;
117: $value =~ s/\s*$//g;
118:
119: # All alphas in the right range?
120: if ($value !~ /^[A-J,a-j]+$/) {
121: return "Invalid letter code $value must only contain A-J";
122: }
123: if (length($value) != $num_letters) {
124: return "Letter code $value has incorrect number of letters (correct = $num_letters)";
125: }
126: return undef;
127: }
128:
129: # Determine if a code entered by the user in a helper is valid.
130: # valid depends on the code type and the type of code selected.
131: # The type of code selected can either be numeric or
132: # Alphabetic. If alphabetic, the code, in fact is a simple
133: # substitution cipher for the actual numeric code: 0->A, 1->B ...
134: # We'll be nice and be case insensitive for alpha codes.
135: # Parameters:
136: # code_value - the value of the code the user typed in.
137: # code_option - The code type selected from the set in the scantron format
138: # table.
139: # Returns:
140: # undef - The code is valid.
141: # other - An error message indicating what's wrong.
142: #
143: sub is_code_valid {
144: my ($code_value, $code_option) = @_;
145: my ($code_type, $code_length) = ('letter', 6); # defaults.
146: open(FG, $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
147: foreach my $line (<FG>) {
148: my ($name, $type, $length) = (split(/:/, $line))[0,2,4];
149: if($name eq $code_option) {
150: $code_length = $length;
151: if($type eq 'number') {
152: $code_type = 'number';
153: }
154: }
155: }
156: my $valid;
157: if ($code_type eq 'number') {
158: return &is_valid_numeric_code($code_value, $code_length);
159: } else {
160: return &is_valid_alpha_code($code_value, $code_length);
161: }
162:
163: }
164:
165: # Compare two students by name. The students are in the form
166: # returned by the helper:
167: # user:domain:section:last, first:status
168: # This is a helper function for the perl sort built-in therefore:
169: # Implicit Inputs:
170: # $a - The first element to compare (global)
171: # $b - The second element to compare (global)
172: # Returns:
173: # -1 - $a < $b
174: # 0 - $a == $b
175: # +1 - $a > $b
176: # Note that the initial comparison is done on the last names with the
177: # first names only used to break the tie.
178: #
179: #
180: sub compare_names {
181: # First split the names up into the primary fields.
182:
183: my ($u1, $d1, $s1, $n1, $stat1) = split(/:/, $a);
184: my ($u2, $d2, $s2, $n2, $stat2) = split(/:/, $b);
185:
186: # Now split the last name and first name of each n:
187: #
188:
189: my ($l1,$f1) = split(/,/, $n1);
190: my ($l2,$f2) = split(/,/, $n2);
191:
192: # We don't bother to remove the leading/trailing whitespace from the
193: # firstname, unless the last names compare identical.
194:
195: if($l1 lt $l2) {
196: return -1;
197: }
198: if($l1 gt $l2) {
199: return 1;
200: }
201:
202: # Break the tie on the first name, but there are leading (possibly trailing
203: # whitespaces to get rid of first
204: #
205: $f1 =~ s/^\s+//; # Remove leading...
206: $f1 =~ s/\s+$//; # Trailing spaces from first 1...
207:
208: $f2 =~ s/^\s+//;
209: $f2 =~ s/\s+$//; # And the same for first 2...
210:
211: if($f1 lt $f2) {
212: return -1;
213: }
214: if($f1 gt $f2) {
215: return 1;
216: }
217:
218: # Must be the same name.
219:
220: return 0;
221: }
222:
223: sub latex_header_footer_remove {
224: my $text = shift;
225: $text =~ s/\\end{document}//;
226: $text =~ s/\\documentclass([^&]*)\\begin{document}//;
227: return $text;
228: }
229: #
230: # If necessary, encapsulate text inside
231: # a minipage env.
232: # necessity is determined by the problem_split param.
233: #
234: sub encapsulate_minipage {
235: my ($text) = @_;
236: if (!(env{'form.problem.split'} =~ /yes/i)) {
237: $text = '\begin{minipage}{\textwidth}'.$text.'\end{minipage}';
238: }
239: return $text;
240: }
241:
242:
243: sub character_chart {
244: my $result = shift;
245: $result =~ s/&\#0?0?(7|9);//g;
246: $result =~ s/&\#0?(10|13);//g;
247: $result =~ s/&\#0?32;/ /g;
248: $result =~ s/&\#0?33;/!/g;
249: $result =~ s/&(\#0?34|quot);/\"/g;
250: $result =~ s/&\#0?35;/\\\#/g;
251: $result =~ s/&\#0?36;/\\\$/g;
252: $result =~ s/&\#0?37;/\\%/g;
253: $result =~ s/&(\#0?38|amp);/\\&/g;
254: $result =~ s/&\#(0?39|146);/\'/g;
255: $result =~ s/&\#0?40;/(/g;
256: $result =~ s/&\#0?41;/)/g;
257: $result =~ s/&\#0?42;/\*/g;
258: $result =~ s/&\#0?43;/\+/g;
259: $result =~ s/&\#(0?44|130);/,/g;
260: $result =~ s/&\#0?45;/-/g;
261: $result =~ s/&\#0?46;/\./g;
262: $result =~ s/&\#0?47;/\//g;
263: $result =~ s/&\#0?48;/0/g;
264: $result =~ s/&\#0?49;/1/g;
265: $result =~ s/&\#0?50;/2/g;
266: $result =~ s/&\#0?51;/3/g;
267: $result =~ s/&\#0?52;/4/g;
268: $result =~ s/&\#0?53;/5/g;
269: $result =~ s/&\#0?54;/6/g;
270: $result =~ s/&\#0?55;/7/g;
271: $result =~ s/&\#0?56;/8/g;
272: $result =~ s/&\#0?57;/9/g;
273: $result =~ s/&\#0?58;/:/g;
274: $result =~ s/&\#0?59;/;/g;
275: $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
276: $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
277: $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
278: $result =~ s/&\#0?63;/\?/g;
279: $result =~ s/&\#0?65;/A/g;
280: $result =~ s/&\#0?66;/B/g;
281: $result =~ s/&\#0?67;/C/g;
282: $result =~ s/&\#0?68;/D/g;
283: $result =~ s/&\#0?69;/E/g;
284: $result =~ s/&\#0?70;/F/g;
285: $result =~ s/&\#0?71;/G/g;
286: $result =~ s/&\#0?72;/H/g;
287: $result =~ s/&\#0?73;/I/g;
288: $result =~ s/&\#0?74;/J/g;
289: $result =~ s/&\#0?75;/K/g;
290: $result =~ s/&\#0?76;/L/g;
291: $result =~ s/&\#0?77;/M/g;
292: $result =~ s/&\#0?78;/N/g;
293: $result =~ s/&\#0?79;/O/g;
294: $result =~ s/&\#0?80;/P/g;
295: $result =~ s/&\#0?81;/Q/g;
296: $result =~ s/&\#0?82;/R/g;
297: $result =~ s/&\#0?83;/S/g;
298: $result =~ s/&\#0?84;/T/g;
299: $result =~ s/&\#0?85;/U/g;
300: $result =~ s/&\#0?86;/V/g;
301: $result =~ s/&\#0?87;/W/g;
302: $result =~ s/&\#0?88;/X/g;
303: $result =~ s/&\#0?89;/Y/g;
304: $result =~ s/&\#0?90;/Z/g;
305: $result =~ s/&\#0?91;/[/g;
306: $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
307: $result =~ s/&\#0?93;/]/g;
308: $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
309: $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
310: $result =~ s/&\#(0?96|145);/\`/g;
311: $result =~ s/&\#0?97;/a/g;
312: $result =~ s/&\#0?98;/b/g;
313: $result =~ s/&\#0?99;/c/g;
314: $result =~ s/&\#100;/d/g;
315: $result =~ s/&\#101;/e/g;
316: $result =~ s/&\#102;/f/g;
317: $result =~ s/&\#103;/g/g;
318: $result =~ s/&\#104;/h/g;
319: $result =~ s/&\#105;/i/g;
320: $result =~ s/&\#106;/j/g;
321: $result =~ s/&\#107;/k/g;
322: $result =~ s/&\#108;/l/g;
323: $result =~ s/&\#109;/m/g;
324: $result =~ s/&\#110;/n/g;
325: $result =~ s/&\#111;/o/g;
326: $result =~ s/&\#112;/p/g;
327: $result =~ s/&\#113;/q/g;
328: $result =~ s/&\#114;/r/g;
329: $result =~ s/&\#115;/s/g;
330: $result =~ s/&\#116;/t/g;
331: $result =~ s/&\#117;/u/g;
332: $result =~ s/&\#118;/v/g;
333: $result =~ s/&\#119;/w/g;
334: $result =~ s/&\#120;/x/g;
335: $result =~ s/&\#121;/y/g;
336: $result =~ s/&\#122;/z/g;
337: $result =~ s/&\#123;/\\{/g;
338: $result =~ s/&\#124;/\|/g;
339: $result =~ s/&\#125;/\\}/g;
340: $result =~ s/&\#126;/\~/g;
341: $result =~ s/&\#131;/\\textflorin /g;
342: $result =~ s/&\#132;/\"/g;
343: $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
344: $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
345: $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
346: $result =~ s/&\#137;/\\textperthousand /g;
347: $result =~ s/&\#140;/{\\OE}/g;
348: $result =~ s/&\#147;/\`\`/g;
349: $result =~ s/&\#148;/\'\'/g;
350: $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
351: $result =~ s/&\#150;/--/g;
352: $result =~ s/&\#151;/---/g;
353: $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
354: $result =~ s/&\#153;/\\texttrademark /g;
355: $result =~ s/&\#156;/\\oe/g;
356: $result =~ s/&\#159;/\\\"Y/g;
357: $result =~ s/&(\#160|nbsp);/~/g;
358: $result =~ s/&(\#161|iexcl);/!\`/g;
359: $result =~ s/&(\#162|cent);/\\textcent /g;
360: $result =~ s/&(\#163|pound);/\\pounds /g;
361: $result =~ s/&(\#164|curren);/\\textcurrency /g;
362: $result =~ s/&(\#165|yen);/\\textyen /g;
363: $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
364: $result =~ s/&(\#167|sect);/\\textsection /g;
365: $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
366: $result =~ s/&(\#169|copy);/\\copyright /g;
367: $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
368: $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
369: $result =~ s/&(\#173|shy);/ - /g;
370: $result =~ s/&(\#174|reg);/\\textregistered /g;
371: $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
372: $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
373: $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
374: $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
375: $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
376: $result =~ s/&(\#180|acute);/\\textacute /g;
377: $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
378: $result =~ s/&(\#182|para);/\\P/g;
379: $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
380: $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
381: $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
382: $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
383: $result =~ s/&(\#188|frac14);/\\textonequarter /g;
384: $result =~ s/&(\#189|frac12);/\\textonehalf /g;
385: $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
386: $result =~ s/&(\#191|iquest);/?\`/g;
387: $result =~ s/&(\#192|Agrave);/\\\`{A}/g;
388: $result =~ s/&(\#193|Aacute);/\\\'{A}/g;
389: $result =~ s/&(\#194|Acirc);/\\^{A}/g;
390: $result =~ s/&(\#195|Atilde);/\\~{A}/g;
391: $result =~ s/&(\#196|Auml);/\\\"{A}/g;
392: $result =~ s/&(\#197|Aring);/{\\AA}/g;
393: $result =~ s/&(\#198|AElig);/{\\AE}/g;
394: $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
395: $result =~ s/&(\#200|Egrave);/\\\`{E}/g;
396: $result =~ s/&(\#201|Eacute);/\\\'{E}/g;
397: $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
398: $result =~ s/&(\#203|Euml);/\\\"{E}/g;
399: $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
400: $result =~ s/&(\#205|Iacute);/\\\'{I}/g;
401: $result =~ s/&(\#206|Icirc);/\\^{I}/g;
402: $result =~ s/&(\#207|Iuml);/\\\"{I}/g;
403: $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
404: $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
405: $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
406: $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
407: $result =~ s/&(\#213|Otilde);/\\~{O}/g;
408: $result =~ s/&(\#214|Ouml);/\\\"{O}/g;
409: $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
410: $result =~ s/&(\#216|Oslash);/{\\O}/g;
411: $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;
412: $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
413: $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
414: $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
415: $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
416: $result =~ s/&(\#223|szlig);/{\\ss}/g;
417: $result =~ s/&(\#224|agrave);/\\\`{a}/g;
418: $result =~ s/&(\#225|aacute);/\\\'{a}/g;
419: $result =~ s/&(\#226|acirc);/\\^{a}/g;
420: $result =~ s/&(\#227|atilde);/\\~{a}/g;
421: $result =~ s/&(\#228|auml);/\\\"{a}/g;
422: $result =~ s/&(\#229|aring);/{\\aa}/g;
423: $result =~ s/&(\#230|aelig);/{\\ae}/g;
424: $result =~ s/&(\#231|ccedil);/\\c{c}/g;
425: $result =~ s/&(\#232|egrave);/\\\`{e}/g;
426: $result =~ s/&(\#233|eacute);/\\\'{e}/g;
427: $result =~ s/&(\#234|ecirc);/\\^{e}/g;
428: $result =~ s/&(\#235|euml);/\\\"{e}/g;
429: $result =~ s/&(\#236|igrave);/\\\`{i}/g;
430: $result =~ s/&(\#237|iacute);/\\\'{i}/g;
431: $result =~ s/&(\#238|icirc);/\\^{i}/g;
432: $result =~ s/&(\#239|iuml);/\\\"{i}/g;
433: $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
434: $result =~ s/&(\#241|ntilde);/\\~{n}/g;
435: $result =~ s/&(\#242|ograve);/\\\`{o}/g;
436: $result =~ s/&(\#243|oacute);/\\\'{o}/g;
437: $result =~ s/&(\#244|ocirc);/\\^{o}/g;
438: $result =~ s/&(\#245|otilde);/\\~{o}/g;
439: $result =~ s/&(\#246|ouml);/\\\"{o}/g;
440: $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
441: $result =~ s/&(\#248|oslash);/{\\o}/g;
442: $result =~ s/&(\#249|ugrave);/\\\`{u}/g;
443: $result =~ s/&(\#250|uacute);/\\\'{u}/g;
444: $result =~ s/&(\#251|ucirc);/\\^{u}/g;
445: $result =~ s/&(\#252|uuml);/\\\"{u}/g;
446: $result =~ s/&(\#253|yacute);/\\\'{y}/g;
447: $result =~ s/&(\#255|yuml);/\\\"{y}/g;
448: $result =~ s/&\#295;/\\ensuremath\{\\hbar\}/g;
449: $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
450: #Greek Alphabet
451: $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
452: $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
453: $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
454: $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
455: $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
456: $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
457: $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
458: $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
459: $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
460: $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
461: $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
462: $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
463: $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
464: $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
465: $result =~ s/&(omicron|\#959);/o/g;
466: $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
467: $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
468: $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
469: $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
470: $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
471: $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
472: $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
473: $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
474: $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
475: $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
476: $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
477: $result =~ s/&(Alpha|\#913);/A/g;
478: $result =~ s/&(Beta|\#914);/B/g;
479: $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
480: $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
481: $result =~ s/&(Epsilon|\#917);/E/g;
482: $result =~ s/&(Zeta|\#918);/Z/g;
483: $result =~ s/&(Eta|\#919);/H/g;
484: $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
485: $result =~ s/&(Iota|\#921);/I/g;
486: $result =~ s/&(Kappa|\#922);/K/g;
487: $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
488: $result =~ s/&(Mu|\#924);/M/g;
489: $result =~ s/&(Nu|\#925);/N/g;
490: $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
491: $result =~ s/&(Omicron|\#927);/O/g;
492: $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
493: $result =~ s/&(Rho|\#929);/P/g;
494: $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
495: $result =~ s/&(Tau|\#932);/T/g;
496: $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
497: $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
498: $result =~ s/&(Chi|\#935);/X/g;
499: $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
500: $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
501: #Arrows (extended HTML 4.01)
502: $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
503: $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
504: $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
505: $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
506: $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
507: $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
508: $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
509: $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
510: $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
511: $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
512: #Mathematical Operators (extended HTML 4.01)
513: $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
514: $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
515: $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
516: $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
517: $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
518: $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
519: $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
520: $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
521: $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
522: $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
523: $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
524: $result =~ s/–/\\ensuremath\{-\}/g;
525: $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
526: $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
527: $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
528: $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
529: $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
530: $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
531: $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
532: $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
533: $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
534: $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
535: $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
536: $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
537: $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
538: $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
539: $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
540: $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
541: $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
542: $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
543: $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
544: $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
545: $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
546: $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
547: $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
548: $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
549: $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
550: $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
551: #Geometric Shapes (extended HTML 4.01)
552: $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
553: #Miscellaneous Symbols (extended HTML 4.01)
554: $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
555: $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
556: $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
557: $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
558: return $result;
559: }
560:
561:
562: #width, height, oddsidemargin, evensidemargin, topmargin
563: my %page_formats=
564: ('letter' => {
565: 'book' => {
566: '1' => [ '7.1 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm'],
567: '2' => ['3.66 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm']
568: },
569: 'album' => {
570: '1' => [ '8.8 in', '6.8 in','-40 pt in', '-60 pt','1 cm'],
571: '2' => [ '4.4 in', '6.8 in','-0.5 in', '-1.5 in','3.5 in']
572: },
573: },
574: 'legal' => {
575: 'book' => {
576: '1' => ['7.1 in','13 in',,'-0.57 in','-0.57 in','-0.5 in'],
577: '2' => ['3.16 in','13 in','-0.57 in','-0.57 in','-0.5 in']
578: },
579: 'album' => {
580: '1' => ['12 in','7.1 in',,'-0.57 in','-0.57 in','-0.5 in'],
581: '2' => ['6.0 in','7.1 in','-1 in','-1 in','5 in']
582: },
583: },
584: 'tabloid' => {
585: 'book' => {
586: '1' => ['9.8 in','16 in','-0.57 in','-0.57 in','-0.5 in'],
587: '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in']
588: },
589: 'album' => {
590: '1' => ['16 in','9.8 in','-0.57 in','-0.57 in','-0.5 in'],
591: '2' => ['16 in','4.9 in','-0.57 in','-0.57 in','-0.5 in']
592: },
593: },
594: 'executive' => {
595: 'book' => {
596: '1' => ['6.8 in','9 in','-0.57 in','-0.57 in','1.2 in'],
597: '2' => ['3.1 in','9 in','-0.57 in','-0.57 in','1.2 in']
598: },
599: 'album' => {
600: '1' => [],
601: '2' => []
602: },
603: },
604: 'a2' => {
605: 'book' => {
606: '1' => [],
607: '2' => []
608: },
609: 'album' => {
610: '1' => [],
611: '2' => []
612: },
613: },
614: 'a3' => {
615: 'book' => {
616: '1' => [],
617: '2' => []
618: },
619: 'album' => {
620: '1' => [],
621: '2' => []
622: },
623: },
624: 'a4' => {
625: 'book' => {
626: '1' => ['176 mm','272 mm','-40 pt in','-60 pt','-0.5 in'],
627: '2' => [ '91 mm','272 mm','-40 pt in','-60 pt','-0.5 in']
628: },
629: 'album' => {
630: '1' => ['8.5 in','7.7 in','-40 pt in','-60 pt','0 in'],
631: '2' => ['3.9 in','7.7 in','-40 pt in','-60 pt','0 in']
632: },
633: },
634: 'a5' => {
635: 'book' => {
636: '1' => [],
637: '2' => []
638: },
639: 'album' => {
640: '1' => [],
641: '2' => []
642: },
643: },
644: 'a6' => {
645: 'book' => {
646: '1' => [],
647: '2' => []
648: },
649: 'album' => {
650: '1' => [],
651: '2' => []
652: },
653: },
654: );
655:
656: sub page_format {
657: #
658: #Supported paper format: "Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",
659: # "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
660: # "A2 [420x594 mm]", "A3 [297x420 mm]",
661: # "A4 [210x297 mm]", "A5 [148x210 mm]",
662: # "A6 [105x148 mm]"
663: #
664: my ($papersize,$layout,$numberofcolumns) = @_;
665: return @{$page_formats{$papersize}->{$layout}->{$numberofcolumns}};
666: }
667:
668:
669: sub get_name {
670: my ($uname,$udom)=@_;
671: if (!defined($uname)) { $uname=$env{'user.name'}; }
672: if (!defined($udom)) { $udom=$env{'user.domain'}; }
673: my $plainname=&Apache::loncommon::plainname($uname,$udom);
674: if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
675: $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
676: return $plainname;
677: }
678:
679: sub get_course {
680: my $courseidinfo;
681: if (defined($env{'request.course.id'})) {
682: $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($env{'course.'.$env{'request.course.id'}.'.description'}),'header');
683: }
684: return $courseidinfo;
685: }
686:
687: sub page_format_transformation {
688: my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_;
689: my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
690: if ($selectionmade eq '4') {
691: $assignment='Problems from the Whole Course';
692: } else {
693: $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
694: }
695: ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
696: my $name = &get_name();
697: my $courseidinfo = &get_course();
698: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
699: my $topmargintoinsert = '';
700: if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
701: my $fancypagestatement='';
702: if ($numberofcolumns eq '2') {
703: $fancypagestatement="\\fancyhead{}\\fancyhead[LO]{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
704: } else {
705: $fancypagestatement="\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
706: }
707: if ($layout eq 'album') {
708: $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\n\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\n\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\n\\pagestyle{fancy}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}\n /;
709: } elsif ($layout eq 'book') {
710: if ($choice ne 'All class print') {
711: $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\n\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\n\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\\pagestyle{fancy}$fancypagestatement\\begin{document}\n\\voffset=-0\.8 cm\\setcounter{page}{1}\n/;
712: } else {
713: $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\n\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\n\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\n\\setcounter{page}{1} \\vskip 5 mm\n /;
714: }
715: if ($papersize eq 'a4') {
716: $text =~ s/(\\begin{document})/$1\\special{papersize=210mm,297mm}/;
717: }
718: }
719: if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
720: if ($indexlist eq 'yes') {
721: $text=~s/(\\begin{document})/\\makeindex $1/;
722: $text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
723: }
724: return $text;
725: }
726:
727:
728: sub page_cleanup {
729: my $result = shift;
730:
731: $result =~ m/\\end{document}(\d*)$/;
732: my $number_of_columns = $1;
733: my $insert = '{';
734: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
735: $insert .= '}';
736: $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
737: $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
738: return $result,$number_of_columns;
739: }
740:
741:
742: sub details_for_menu {
743: my ($helper)=@_;
744: my $postdata=$env{'form.postdata'};
745: if (!$postdata) { $postdata=$helper->{VARS}{'postdata'}; }
746: my $name_of_resource = &Apache::lonnet::gettitle($postdata);
747: my $symbolic = &Apache::lonnet::symbread($postdata);
748: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
749: $map=&Apache::lonnet::clutter($map);
750: my $name_of_sequence = &Apache::lonnet::gettitle($map);
751: if ($name_of_sequence =~ /^\s*$/) {
752: $map =~ m|([^/]+)$|;
753: $name_of_sequence = $1;
754: }
755: my $name_of_map = &Apache::lonnet::gettitle($env{'request.course.uri'});
756: if ($name_of_map =~ /^\s*$/) {
757: $env{'request.course.uri'} =~ m|([^/]+)$|;
758: $name_of_map = $1;
759: }
760: return ($name_of_resource,$name_of_sequence,$name_of_map);
761: }
762:
763:
764: sub latex_corrections {
765: my ($number_of_columns,$result,$selectionmade,$answer_mode) = @_;
766: # $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
767: $result =~ s/\$number_of_columns/$number_of_columns/g;
768: if ($selectionmade eq '1' || $answer_mode eq 'only') {
769: $result =~ s/(\\end{document})/\\strut\\vskip 0 mm\\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/;
770: } else {
771: $result =~ s/(\\end{document})/\\strut\\vspace\*{-4 mm}\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License $1/;
772: }
773: $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
774: $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
775: #-- LaTeX corrections
776: my $first_comment = index($result,'<!--',0);
777: while ($first_comment != -1) {
778: my $end_comment = index($result,'-->',$first_comment);
779: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
780: $first_comment = index($result,'<!--',$first_comment);
781: }
782: $result =~ s/^\s+$//gm; #remove empty lines
783: #removes more than one empty space
784: $result =~ s|(\s\s+)|($1=~/[\n\r]/)?"\n":" "|ge;
785: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
786: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
787: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
788: $result =~ s/\\\\\s+\[/ \[/g;
789: #conversion of html characters to LaTeX equivalents
790: if ($result =~ m/&(\w+|#\d+);/) {
791: $result = &character_chart($result);
792: }
793: $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
794: $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
795: return $result;
796: }
797:
798:
799: sub index_table {
800: my $currentURL = shift;
801: my $insex_string='';
802: $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
803: $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
804: return $insex_string;
805: }
806:
807:
808: sub IndexCreation {
809: my ($texversion,$currentURL)=@_;
810: my @key_words=split(/,/,&index_table($currentURL));
811: my $chunk='';
812: my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
813: if ($st>0) {
814: for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
815: $chunk=substr($texversion,0,$st+1);
816: substr($texversion,0,$st+1)=' ';
817: }
818: foreach my $key_word (@key_words) {
819: if ($key_word=~/\S+/) {
820: $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
821: }
822: }
823: if ($st>0) {substr($texversion,0,1)=$chunk;}
824: return $texversion;
825: }
826:
827: sub print_latex_header {
828: my $mode=shift;
829: my $output='\documentclass[letterpaper,twoside]{article}';
830: if (($mode eq 'batchmode') || (!$perm{'pav'})) {
831: $output.='\batchmode';
832: }
833: $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'."\n".
834: '\usepackage{multirow}'."\n".
835: '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'."\n".
836: '\usepackage[dvips]{graphicx}\usepackage{epsfig}'."\n".
837: '\usepackage{wrapfig}'.
838: '\usepackage{picins}\usepackage{calc}'."\n".
839: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'."\n".
840: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'."\n".
841: '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'."\n".
842: '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'."\n".
843: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
844: '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'."\n".
845: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'."\n".
846: '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'."\n".
847: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'."\n".
848: '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'."\n".
849: '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'."\n".
850: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
851: '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}'."\n";
852: return $output;
853: }
854:
855: sub path_to_problem {
856: my ($urlp,$colwidth)=@_;
857: $urlp=&Apache::lonnet::clutter($urlp);
858:
859: my $newurlp = '';
860: $colwidth=~s/\s*mm\s*$//;
861: #characters average about 2 mm in width
862: if (length($urlp)*2 > $colwidth) {
863: my @elements = split('/',$urlp);
864: my $curlength=0;
865: foreach my $element (@elements) {
866: if ($element eq '') { next; }
867: if ($curlength+(length($element)*2) > $colwidth) {
868: $newurlp .= '|\vskip -1 mm \verb|';
869: $curlength=length($element)*2;
870: } else {
871: $curlength+=length($element)*2;
872: }
873: $newurlp.='/'.$element;
874: }
875: } else {
876: $newurlp=$urlp;
877: }
878: return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
879: }
880:
881: sub recalcto_mm {
882: my $textwidth=shift;
883: my $LaTeXwidth;
884: if ($textwidth=~/(-?\d+\.?\d*)\s*cm/) {
885: $LaTeXwidth = $1*10;
886: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*mm/) {
887: $LaTeXwidth = $1;
888: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*in/) {
889: $LaTeXwidth = $1*25.4;
890: }
891: $LaTeXwidth.=' mm';
892: return $LaTeXwidth;
893: }
894:
895: sub get_textwidth {
896: my ($helper,$LaTeXwidth)=@_;
897: my $textwidth=$LaTeXwidth;
898: if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
899: $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
900: $textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
901: $helper->{'VARS'}->{'pagesize.widthunit'});
902: }
903: return $textwidth;
904: }
905:
906:
907: sub unsupported {
908: my ($currentURL,$mode,$symb)=@_;
909: if ($mode ne '') {$mode='\\'.$mode}
910: my $result.= &print_latex_header($mode);
911: if ($currentURL=~m|^(/adm/wrapper/)?ext/|) {
912: $currentURL=~s|^(/adm/wrapper/)?ext/|http://|;
913: my $title=&Apache::lonnet::gettitle($symb);
914: $title = &Apache::lonxml::latex_special_symbols($title);
915: $result.=' \strut \\\\ '.$title.' \strut \\\\ '.$currentURL.' ';
916: } else {
917: $result.=$currentURL;
918: }
919: $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
920: return $result;
921: }
922:
923:
924: #
925: # List of recently generated print files
926: #
927: sub recently_generated {
928: my $r=shift;
929: my $prtspool=$r->dir_config('lonPrtDir');
930: my $zip_result;
931: my $pdf_result;
932: opendir(DIR,$prtspool);
933:
934: my @files =
935: grep(/^$env{'user.name'}_$env{'user.domain'}_printout_(\d+)_.*\.(pdf|zip)$/,readdir(DIR));
936: closedir(DIR);
937:
938: @files = sort {
939: my ($actime) = (stat($prtspool.'/'.$a))[10];
940: my ($bctime) = (stat($prtspool.'/'.$b))[10];
941: return $bctime <=> $actime;
942: } (@files);
943:
944: foreach my $filename (@files) {
945: my ($ext) = ($filename =~ m/(pdf|zip)$/);
946: my ($cdev,$cino,$cmode,$cnlink,
947: $cuid,$cgid,$crdev,$csize,
948: $catime,$cmtime,$cctime,
949: $cblksize,$cblocks)=stat($prtspool.'/'.$filename);
950: my $result="<a href='/prtspool/$filename'>".
951: &mt('Generated [_1] ([_2] bytes)',
952: &Apache::lonlocal::locallocaltime($cctime),$csize).
953: '</a><br />';
954: if ($ext eq 'pdf') { $pdf_result .= $result; }
955: if ($ext eq 'zip') { $zip_result .= $result; }
956: }
957: if ($zip_result) {
958: $r->print('<h4>'.&mt('Recently generated printout zip files')."</h4>\n"
959: .$zip_result);
960: }
961: if ($pdf_result) {
962: $r->print('<h4>'.&mt('Recently generated printouts')."</h4>\n"
963: .$pdf_result);
964: }
965: }
966:
967: #
968: # Retrieve the hash of page breaks.
969: #
970: # Inputs:
971: # helper - reference to helper object.
972: # Outputs
973: # A reference to a page break hash.
974: #
975: #
976: #use Data::Dumper;
977: #sub dump_helper_vars {
978: # my ($helper) = @_;
979: # my $helpervars = Dumper($helper->{'VARS'});
980: # &Apache::lonnet::logthis("Dump of helper vars:\n $helpervars");
981: #}
982:
983: sub get_page_breaks {
984: my ($helper) = @_;
985: my %page_breaks;
986:
987: foreach my $break (split /\|\|\|/, $helper->{'VARS'}->{'FINISHPAGE'}) {
988: $page_breaks{$break} = 1;
989: }
990: return %page_breaks;
991: }
992:
993: sub output_data {
994: my ($r,$helper,$rparmhash) = @_;
995: my %parmhash = %$rparmhash;
996: my $resources_printed = '';
997: my $html=&Apache::lonxml::xmlbegin();
998: my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
999: $r->print(<<ENDPART);
1000: $html
1001: <head>
1002: <script type="text/javascript" language="Javascript">
1003: var editbrowser;
1004: function openbrowser(formname,elementname,only,omit) {
1005: var url = '/res/?';
1006: if (editbrowser == null) {
1007: url += 'launch=1&';
1008: }
1009: url += 'catalogmode=interactive&';
1010: url += 'mode=parmset&';
1011: url += 'form=' + formname + '&';
1012: if (only != null) {
1013: url += 'only=' + only + '&';
1014: }
1015: if (omit != null) {
1016: url += 'omit=' + omit + '&';
1017: }
1018: url += 'element=' + elementname + '';
1019: var title = 'Browser';
1020: var options = 'scrollbars=1,resizable=1,menubar=0';
1021: options += ',width=700,height=600';
1022: editbrowser = open(url,title,options,'1');
1023: editbrowser.focus();
1024: }
1025: </script>
1026: <title>LON-CAPA output for printing</title>
1027: </head>
1028: $bodytag
1029: <p>
1030: Please stand by while processing your print request, this may take some time ...
1031: </p>
1032: ENDPART
1033:
1034:
1035:
1036: # fetch the pagebreaks and store them in the course environment
1037: # The page breaks will be pulled into the hash %page_breaks which is
1038: # indexed by symb and contains 1's for each break.
1039:
1040: $env{'form.pagebreaks'} = $helper->{'VARS'}->{'FINISHPAGE'};
1041: $env{'form.lastprinttype'} = $helper->{'VARS'}->{'PRINT_TYPE'};
1042: &Apache::loncommon::store_course_settings('print',
1043: {'pagebreaks' => 'scalar',
1044: 'lastprinttype' => 'scalar'});
1045:
1046: my %page_breaks = &get_page_breaks($helper);
1047:
1048: my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
1049: my ($result,$selectionmade) = ('','');
1050: my $number_of_columns = 1; #used only for pages to determine the width of the cell
1051: my @temporary_array=split /\|/,$format_from_helper;
1052: my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
1053: if ($laystyle eq 'L') {
1054: $laystyle='album';
1055: } else {
1056: $laystyle='book';
1057: }
1058: my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
1059: my $assignment = $env{'form.assignment'};
1060: my $LaTeXwidth=&recalcto_mm($textwidth);
1061: my @print_array=();
1062: my @student_names=();
1063:
1064: # Common settings for the %form has:
1065: # In some cases these settings get overriddent by specific cases, but the
1066: # settings are common enough to make it worthwhile factoring them out
1067: # here.
1068: #
1069: my %form;
1070: $form{'grade_target'} = 'tex';
1071: $form{'textwidth'} = &get_textwidth($helper, $LaTeXwidth);
1072:
1073: # If form.showallfoils is set, then request all foils be shown:
1074: # privilege will be enforced both by not allowing the
1075: # check box selecting this option to be presnt unless it's ok,
1076: # and by lonresponse's priv. check.
1077: # The if is here because lonresponse.pm only cares that
1078: # showallfoils is defined, not what the value is.
1079:
1080: if ($helper->{'VARS'}->{'showallfoils'} eq "1") {
1081: $form{'showallfoils'} = $helper->{'VARS'}->{'showallfoils'};
1082: }
1083:
1084: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
1085: #-- single document - problem, page, html, xml, ...
1086: my ($currentURL,$cleanURL);
1087:
1088: if ($helper->{'VARS'}->{'construction'} ne '1') {
1089: #prints published resource
1090: $currentURL=$helper->{'VARS'}->{'postdata'};
1091: $cleanURL=&Apache::lonenc::check_decrypt($currentURL);
1092: } else {
1093: #prints resource from the construction space
1094: $currentURL='/'.$helper->{'VARS'}->{'filename'};
1095: if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
1096: $cleanURL=$currentURL;
1097: }
1098: $selectionmade = 1;
1099: if ($cleanURL!~m|^/adm/|
1100: && $cleanURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1101: my $rndseed=time;
1102: my $texversion='';
1103: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1104: my %moreenv;
1105: $moreenv{'request.filename'}=$cleanURL;
1106: if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
1107: $moreenv{'construct.style'}=$helper->{'VARS'}->{'style_file'};
1108: my $dom = $env{'user.domain'};
1109: my $user = $env{'user.name'};
1110: my $put_result = &Apache::lonnet::put('environment',{'construct.style'=>$helper->{'VARS'}->{'style_file'}},$dom,$user);
1111: }
1112: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
1113: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1114: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1115: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1116: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1117: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
1118: if ($helper->{'VARS'}->{'curseed'}) {
1119: $rndseed=$helper->{'VARS'}->{'curseed'};
1120: }
1121: $form{'rndseed'}=$rndseed;
1122: &Apache::lonnet::appenv(%moreenv);
1123: &Apache::lonnet::delenv('form.counter');
1124: &Apache::lonxml::init_counter();
1125: &Apache::lonxml::store_counter();
1126: $resources_printed .= $currentURL.':';
1127: $texversion.=&Apache::lonnet::ssi($currentURL,%form);
1128: &Apache::lonnet::delenv('form.counter');
1129: &Apache::lonnet::delenv('request.filename');
1130: }
1131: # current document with answers.. no need to encap in minipage
1132: # since there's only one answer.
1133:
1134: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1135: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1136: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1137: $form{'grade_target'}='answer';
1138: $form{'answer_output_mode'}='tex';
1139: $form{'rndseed'}=$rndseed;
1140: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
1141: $form{'problemtype'}='exam';
1142: }
1143: $resources_printed .= $currentURL.':';
1144: my $answer=&Apache::lonnet::ssi($currentURL,%form);
1145: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1146: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1147: } else {
1148: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1149: if ($helper->{'VARS'}->{'construction'} ne '1') {
1150: $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1151: $texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
1152: } else {
1153: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1154: my $URLpath=$cleanURL;
1155: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1156: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1157: }
1158: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1159: }
1160: }
1161: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1162: $texversion=&IndexCreation($texversion,$currentURL);
1163: }
1164: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1165: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
1166:
1167: }
1168: $result .= $texversion;
1169: if ($currentURL=~m/\.page\s*$/) {
1170: ($result,$number_of_columns) = &page_cleanup($result);
1171: }
1172: } elsif ($cleanURL!~m|^/adm/|
1173: && $currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
1174: #printing content of sequence from the construction space
1175: my $flag_latex_header_remove = 'NO';
1176: my $rndseed=time;
1177: if ($helper->{'VARS'}->{'curseed'}) {
1178: $rndseed=$helper->{'VARS'}->{'curseed'};
1179: }
1180: $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
1181: my $errtext=&Apache::lonratedt::mapread($currentURL);
1182: for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
1183: $Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
1184: my $urlp=$2;
1185: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
1186: my $texversion='';
1187: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1188: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1189: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1190: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1191: $form{'rndseed'}=$rndseed;
1192: $resources_printed .=$urlp.':';
1193: $texversion=&Apache::lonnet::ssi($urlp,%form);
1194: }
1195: if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1196: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) &&
1197: ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
1198: # Don't permanently modify %$form...
1199: my %answerform = %form;
1200: $answerform{'grade_target'}='answer';
1201: $answerform{'answer_output_mode'}='tex';
1202: $answerform{'rndseed'}=$rndseed;
1203: $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
1204: if ($urlp=~/\/res\//) {$env{'request.state'}='published';}
1205: $resources_printed .= $urlp.':';
1206: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1207: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1208: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1209: } else {
1210: # If necessary, encapsulate answer in minipage:
1211:
1212: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1213: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1214: $body.=&path_to_problem($urlp,$LaTeXwidth);
1215: $body.='\vskip 1 mm '.$answer.'\end{document}';
1216: $body = &encapsulate_minipage($body);
1217: $texversion.=$body;
1218: }
1219: }
1220: if ($flag_latex_header_remove ne 'NO') {
1221: $texversion = &latex_header_footer_remove($texversion);
1222: } else {
1223: $texversion =~ s/\\end{document}//;
1224: }
1225: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1226: $texversion=&IndexCreation($texversion,$urlp);
1227: }
1228: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
1229: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1230: }
1231: $result.=$texversion;
1232: $flag_latex_header_remove = 'YES';
1233: } elsif ($urlp=~/\.(sequence|page)$/) {
1234: $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
1235: }
1236: }
1237: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
1238: $result .= '\end{document}';
1239: } elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1240: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1241: if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
1242: $resources_printed .= $currentURL.':';
1243: my $texversion=&Apache::lonnet::ssi($currentURL,%form);
1244: $result .= $texversion;
1245: } else {
1246: $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'},
1247: $helper->{'VARS'}->{'symb'});
1248: }
1249: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
1250: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
1251: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
1252: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') or # BUGBUG
1253: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) {
1254: #-- produce an output string
1255: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
1256: $selectionmade = 2;
1257: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
1258: $selectionmade = 3;
1259: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
1260: $selectionmade = 4;
1261: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') { #BUGBUG
1262: $selectionmade = 4;
1263: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
1264: $selectionmade = 7;
1265: }
1266: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1267: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1268: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1269: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1270: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
1271: my $flag_latex_header_remove = 'NO';
1272: my $flag_page_in_sequence = 'NO';
1273: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1274: my $prevassignment='';
1275: &Apache::lonnet::delenv('form.counter');
1276: &Apache::lonxml::init_counter();
1277: &Apache::lonxml::store_counter();
1278: my $pbreakresources = keys %page_breaks;
1279: for (my $i=0;$i<=$#master_seq;$i++) {
1280:
1281: # Note due to document structure, not allowed to put \newpage
1282: # prior to the first resource
1283:
1284: if (defined $page_breaks{$master_seq[$i]}) {
1285: if($i != 0) {
1286: $result.="\\newpage\n";
1287: }
1288: }
1289: my ($sequence,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
1290: $urlp=&Apache::lonnet::clutter($urlp);
1291: $form{'symb'}=$master_seq[$i];
1292:
1293: my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #title of the assignment which contains this problem
1294: if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
1295: if ($i==0) {$prevassignment=$assignment;}
1296: my $texversion='';
1297: if ($urlp!~m|^/adm/|
1298: && $urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1299: $resources_printed .= $urlp.':';
1300: my $pre_counter=$env{'form.counter'};
1301: $texversion.=&Apache::lonnet::ssi($urlp,%form);
1302: if ($urlp=~/\.page$/) {
1303: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
1304: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
1305: $texversion =~ s/\\end{document}\d*/\\end{document}/;
1306: $flag_page_in_sequence = 'YES';
1307: }
1308: my ($envfile) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
1309: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1310: $envfile);
1311: my $current_counter=$env{'form.counter'};
1312: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1313: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1314: # Don't permanently pervert the %form hash
1315: my %answerform = %form;
1316: $answerform{'grade_target'}='answer';
1317: $answerform{'answer_output_mode'}='tex';
1318: $resources_printed .= $urlp.':';
1319: &Apache::lonnet::appenv(('form.counter' => $pre_counter));
1320: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1321: &Apache::lonnet::appenv(('form.counter' => $current_counter));
1322: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1323: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1324: } else {
1325: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
1326: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1327: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($master_seq[$i]).'}\vskip 0 mm ';
1328: $body .= &path_to_problem ($urlp,$LaTeXwidth);
1329: $body .='\vskip 1 mm '.$answer;
1330: $body = &encapsulate_minipage($body);
1331: $texversion .= $body;
1332: } else {
1333: $texversion='';
1334: }
1335: }
1336: }
1337: if ($flag_latex_header_remove ne 'NO') {
1338: $texversion = &latex_header_footer_remove($texversion);
1339: } else {
1340: $texversion =~ s/\\end{document}//;
1341: }
1342: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1343: $texversion=&IndexCreation($texversion,$urlp);
1344: }
1345: if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
1346: my $name = &get_name();
1347: my $courseidinfo = &get_course();
1348: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1349: $prevassignment=$assignment;
1350: if ($numberofcolumns eq '1') {
1351: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
1352: } else {
1353: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\fancyhead[LO]{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
1354: }
1355: }
1356: $result .= $texversion;
1357: $flag_latex_header_remove = 'YES';
1358: } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1359: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1360: if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
1361: $resources_printed .= $urlp.':';
1362: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1363: if ($flag_latex_header_remove ne 'NO') {
1364: $texversion = &latex_header_footer_remove($texversion);
1365: } else {
1366: $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
1367: }
1368: $result .= $texversion;
1369: $flag_latex_header_remove = 'YES';
1370: } else {
1371: $texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'},
1372: $master_seq[$i]);
1373: if ($flag_latex_header_remove ne 'NO') {
1374: $texversion = &latex_header_footer_remove($texversion);
1375: } else {
1376: $texversion =~ s/\\end{document}//;
1377: }
1378: $result .= $texversion;
1379: $flag_latex_header_remove = 'YES';
1380: }
1381: if (&Apache::loncommon::connection_aborted($r)) { last; }
1382: }
1383: &Apache::lonnet::delenv('form.counter');
1384: if ($flag_page_in_sequence eq 'YES') {
1385: $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
1386: }
1387: $result .= '\end{document}';
1388: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
1389: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
1390:
1391:
1392: #-- prints assignments for whole class or for selected students
1393: my $type;
1394: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
1395: $selectionmade=5;
1396: $type='problems';
1397: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
1398: $selectionmade=8;
1399: $type='resources';
1400: }
1401: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
1402: # The normal sort order is by section then by students within the
1403: # section. If the helper var student_sort is 1, then the user has elected
1404: # to override this and output the students by name.
1405: # Each element of the students array is of the form:
1406: # username:domain:section:last, first:status
1407: #
1408: #
1409: if ($helper->{'VARS'}->{'student_sort'} eq 1) {
1410: @students = sort compare_names @students;
1411: }
1412: if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
1413: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
1414: $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
1415: }
1416: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1417:
1418: #loop over students
1419: my $flag_latex_header_remove = 'NO';
1420: my %moreenv;
1421: $moreenv{'instructor_comments'}='hide';
1422: $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
1423: $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1424: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1425: $moreenv{'suppress_tries'} = $parmhash{'suppress_tries'};
1426: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$moreenv{'problem_split'}='yes';}
1427: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
1428: my $student_counter=-1;
1429: foreach my $person (@students) {
1430:
1431: my $duefile="/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1432: if (-e $duefile) {
1433: my $temp_file = Apache::File->new('>>'.$duefile);
1434: print $temp_file "1969\n";
1435: }
1436: $student_counter++;
1437: my $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
1438: my ($output,$fullname, $printed)=&print_resources($r,$helper,
1439: $person,$type,
1440: \%moreenv,\@master_seq,
1441: $flag_latex_header_remove,
1442: $LaTeXwidth);
1443: $resources_printed .= ":";
1444: $print_array[$i].=$output;
1445: $student_names[$i].=$person.':'.$fullname.'_END_';
1446: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
1447: $flag_latex_header_remove = 'YES';
1448: if (&Apache::loncommon::connection_aborted($r)) { last; }
1449: }
1450: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1451: $result .= $print_array[0].' \end{document}';
1452: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon') ||
1453: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon') ) {
1454: my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
1455: my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
1456: my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
1457: my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
1458: my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
1459: my $single_code = $helper->{'VARS'}->{'SINGLE_CODE'};
1460: my $selected_code = $helper->{'VARS'}->{'CODE_SELECTED_FROM_LIST'};
1461:
1462: my $code_option=$helper->{'VARS'}->{'CODE_OPTION'};
1463: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
1464: my ($code_type,$code_length)=('letter',6);
1465: foreach my $line (<FH>) {
1466: my ($name,$type,$length) = (split(/:/,$line))[0,2,4];
1467: if ($name eq $code_option) {
1468: $code_length=$length;
1469: if ($type eq 'number') { $code_type = 'number'; }
1470: }
1471: }
1472: my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
1473: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1474: $moreenv{'instructor_comments'}='hide';
1475: my $seed=time+($$<<16)+($$);
1476: my @allcodes;
1477: if ($old_name) {
1478: my %result=&Apache::lonnet::get('CODEs',
1479: [$old_name,"type\0$old_name"],
1480: $cdom,$cnum);
1481: $code_type=$result{"type\0$old_name"};
1482: @allcodes=split(',',$result{$old_name});
1483: $num_todo=scalar(@allcodes);
1484: } elsif ($selected_code) { # Selection value is always numeric.
1485: $num_todo = 1;
1486: @allcodes = ($selected_code);
1487: } elsif ($single_code) {
1488:
1489: $num_todo = 1; # Unconditionally one code to do.
1490: # If an alpha code have to convert to numbers so it can be
1491: # converted back to letters again :-)
1492: #
1493: if ($code_type ne 'number') {
1494: $single_code = &letters_to_num($single_code);
1495: }
1496: @allcodes = ($single_code);
1497: } else {
1498: my %allcodes;
1499: srand($seed);
1500: for (my $i=0;$i<$num_todo;$i++) {
1501: $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,$code_length,
1502: $code_type);
1503: }
1504: if ($code_name) {
1505: &Apache::lonnet::put('CODEs',
1506: {
1507: $code_name =>join(',',keys(%allcodes)),
1508: "type\0$code_name" => $code_type
1509: },
1510: $cdom,$cnum);
1511: }
1512: @allcodes=keys(%allcodes);
1513: }
1514: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1515: my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
1516: my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
1517: if ($number_per_page eq '0' || $number_per_page eq 'all') {
1518: $number_per_page=$num_todo;
1519: }
1520: my $flag_latex_header_remove = 'NO';
1521: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
1522: my $count=0;
1523: foreach my $code (sort(@allcodes)) {
1524: my $file_num=int($count/$number_per_page);
1525: if ($code_type eq 'number') {
1526: $moreenv{'CODE'}=$code;
1527: } else {
1528: $moreenv{'CODE'}=&num_to_letters($code);
1529: }
1530: my ($output,$fullname, $printed)=
1531: &print_resources($r,$helper,'anonymous',$type,\%moreenv,
1532: \@master_seq,$flag_latex_header_remove,
1533: $LaTeXwidth);
1534: $resources_printed .= ":";
1535: $print_array[$file_num].=$output;
1536: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
1537: &mt('last assignment').' '.$fullname);
1538: $flag_latex_header_remove = 'YES';
1539: $count++;
1540: if (&Apache::loncommon::connection_aborted($r)) { last; }
1541: }
1542: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1543: $result .= $print_array[0].' \end{document}';
1544: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
1545: #prints selected problems from the subdirectory
1546: $selectionmade = 6;
1547: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
1548: @list_of_files=sort @list_of_files;
1549: my $flag_latex_header_remove = 'NO';
1550: my $rndseed=time;
1551: if ($helper->{'VARS'}->{'curseed'}) {
1552: $rndseed=$helper->{'VARS'}->{'curseed'};
1553: }
1554: for (my $i=0;$i<=$#list_of_files;$i++) {
1555: my $urlp = $list_of_files[$i];
1556: $urlp=~s|//|/|;
1557: if ($urlp=~/\//) {
1558: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1559: $form{'rndseed'}=$rndseed;
1560: if ($urlp =~ m|/home/([^/]+)/public_html|) {
1561: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
1562: } else {
1563: $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
1564: }
1565: $resources_printed .= $urlp.':';
1566: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1567: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1568: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1569: # Don't permanently pervert %form:
1570: my %answerform = %form;
1571: $answerform{'grade_target'}='answer';
1572: $answerform{'answer_output_mode'}='tex';
1573: $answerform{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1574: $answerform{'rndseed'}=$rndseed;
1575: $resources_printed .= $urlp.':';
1576: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1577: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1578: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1579: } else {
1580: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1581: if ($helper->{'VARS'}->{'construction'} ne '1') {
1582: $texversion.='\vskip 0 mm \noindent ';
1583: $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
1584: } else {
1585: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1586: my $URLpath=$urlp;
1587: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1588: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1589: }
1590: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1591: }
1592: }
1593: #this chunck is responsible for printing the path to problem
1594: my $newurlp=$urlp;
1595: if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
1596: $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
1597: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
1598: if ($flag_latex_header_remove ne 'NO') {
1599: $texversion = &latex_header_footer_remove($texversion);
1600: } else {
1601: $texversion =~ s/\\end{document}//;
1602: }
1603: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1604: $texversion=&IndexCreation($texversion,$urlp);
1605: }
1606: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1607: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1608:
1609: }
1610: $result .= $texversion;
1611: }
1612: $flag_latex_header_remove = 'YES';
1613: }
1614: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
1615: $result .= '\end{document}';
1616: }
1617: #-------------------------------------------------------- corrections for the different page formats
1618: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
1619: $result = &latex_corrections($number_of_columns,$result,$selectionmade,
1620: $helper->{'VARS'}->{'ANSWER_TYPE'});
1621: for (my $i=1;$i<=$#print_array;$i++) {
1622: $print_array[$i] =
1623: &latex_corrections($number_of_columns,$print_array[$i],
1624: $selectionmade,
1625: $helper->{'VARS'}->{'ANSWER_TYPE'});
1626: }
1627: #changes page's parameters for the one column output
1628: if ($numberofcolumns == 1) {
1629: $result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
1630: $result =~ s/\\textheight\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
1631: $result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1632: $result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1633: }
1634:
1635: #-- writing .tex file in prtspool
1636: my $temp_file;
1637: my $identifier = &Apache::loncommon::get_cgi_id();
1638: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout_$identifier.tex";
1639: if (!($#print_array>0)) {
1640: unless ($temp_file = Apache::File->new('>'.$filename)) {
1641: $r->log_error("Couldn't open $filename for output $!");
1642: return SERVER_ERROR;
1643: }
1644: print $temp_file $result;
1645: my $begin=index($result,'\begin{document}',0);
1646: my $inc=substr($result,0,$begin+16);
1647: } else {
1648: my $begin=index($result,'\begin{document}',0);
1649: my $inc=substr($result,0,$begin+16);
1650: for (my $i=0;$i<=$#print_array;$i++) {
1651: if ($i==0) {
1652: $print_array[$i]=$result;
1653: } else {
1654: my $anobegin=index($print_array[$i],'\setcounter{page}',0);
1655: substr($print_array[$i],0,$anobegin)='';
1656: $print_array[$i]=$inc.$print_array[$i].'\end{document}';
1657: }
1658: my $temp_file;
1659: my $newfilename=$filename;
1660: my $num=$i+1;
1661: $newfilename =~s/\.tex$//;
1662: $newfilename=sprintf("%s_%03d.tex",$newfilename, $num);
1663: unless ($temp_file = Apache::File->new('>'.$newfilename)) {
1664: $r->log_error("Couldn't open $newfilename for output $!");
1665: return SERVER_ERROR;
1666: }
1667: print $temp_file $print_array[$i];
1668: }
1669: }
1670: my $student_names='';
1671: if ($#print_array>0) {
1672: for (my $i=0;$i<=$#print_array;$i++) {
1673: $student_names.=$student_names[$i].'_ENDPERSON_';
1674: }
1675: } else {
1676: if ($#student_names>-1) {
1677: $student_names=$student_names[0].'_ENDPERSON_';
1678: } else {
1679: my $fullname = &get_name($env{'user.name'},$env{'user.domain'});
1680: $student_names=join(':',$env{'user.name'},$env{'user.domain'},
1681: $env{'request.course.sec'},$fullname).
1682: '_ENDPERSON_'.'_END_';
1683: }
1684: }
1685:
1686: my $URLback=''; #link to original document
1687: if ($helper->{'VARS'}->{'construction'} ne '1') {
1688: #prints published resource
1689: $URLback=&Apache::lonnet::escape('/adm/flip?postdata=return:');
1690: } else {
1691: #prints resource from the construction space
1692: $URLback='/'.$helper->{'VARS'}->{'filename'};
1693: if ($URLback=~/([^?]+)/) {
1694: $URLback=$1;
1695: $URLback=~s|^/~|/priv/|;
1696: }
1697: }
1698: # logic for now is too complex to trace if this has been defined
1699: # yet.
1700: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1701: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1702: &Apache::lonnet::appenv('cgi.'.$identifier.'.file' => $filename,
1703: 'cgi.'.$identifier.'.layout' => $laystyle,
1704: 'cgi.'.$identifier.'.numcol' => $numberofcolumns,
1705: 'cgi.'.$identifier.'.paper' => $papersize,
1706: 'cgi.'.$identifier.'.selection' => $selectionmade,
1707: 'cgi.'.$identifier.'.tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
1708: 'cgi.'.$identifier.'.tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
1709: 'cgi.'.$identifier.'.role' => $perm{'pav'},
1710: 'cgi.'.$identifier.'.numberoffiles' => $#print_array,
1711: 'cgi.'.$identifier.'.studentnames' => $student_names,
1712: 'cgi.'.$identifier.'.backref' => $URLback,);
1713: &Apache::lonnet::appenv("cgi.$identifier.user" => $env{'user.name'},
1714: "cgi.$identifier.domain" => $env{'user.domain'},
1715: "cgi.$identifier.courseid" => $cnum,
1716: "cgi.$identifier.coursedom" => $cdom,
1717: "cgi.$identifier.resources" => $resources_printed);
1718:
1719: $r->print(<<FINALEND);
1720: <br />
1721: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
1722: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
1723: </body>
1724: </html>
1725: FINALEND
1726: }
1727:
1728:
1729: sub get_CODE {
1730: my ($all_codes,$num,$seed,$size,$type)=@_;
1731: my $max='1'.'0'x$size;
1732: my $newcode;
1733: while(1) {
1734: $newcode=sprintf("%0".$size."d",int(rand($max)));
1735: if (!exists($$all_codes{$newcode})) {
1736: $$all_codes{$newcode}=1;
1737: if ($type eq 'number' ) {
1738: return $newcode;
1739: } else {
1740: return &num_to_letters($newcode);
1741: }
1742: }
1743: }
1744: }
1745:
1746: sub print_resources {
1747: my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
1748: $LaTeXwidth)=@_;
1749: my $current_output = '';
1750: my $printed = '';
1751: my ($username,$userdomain,$usersection) = split /:/,$person;
1752: my $fullname = &get_name($username,$userdomain);
1753: my $namepostfix;
1754: if ($person =~ 'anon') {
1755: $namepostfix="\\\\Name: ";
1756: $fullname = "CODE - ".$moreenv->{'CODE'};
1757: }
1758: my $i = 0;
1759: #goes through all resources, checks if they are available for
1760: #current student, and produces output
1761: &Apache::lonnet::delenv('form.counter');
1762: &Apache::lonxml::init_counter();
1763: &Apache::lonxml::store_counter();
1764: my %page_breaks = &get_page_breaks($helper);
1765: my @format_array = split(/\|/,$helper->{'VARS'}->{'FORMAT'});
1766: my $columns_in_format = $format_array[1];
1767:
1768: foreach my $curresline (@{$master_seq}) {
1769: if (defined $page_breaks{$curresline}) {
1770: if($i != 0) {
1771: $current_output.= "\\newpage\n";
1772: }
1773: }
1774: $i++;
1775: if ( !($type eq 'problems' &&
1776: ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
1777: my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
1778: if (&Apache::lonnet::allowed('bre',$res_url)) {
1779: if ($res_url!~m|^ext/|
1780: && $res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1781: $printed .= $curresline.':';
1782: my $pre_counter=$env{'form.counter'};
1783: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1784: my ($envfile) =
1785: ( $env{'user.environment'} =~ m|/([^/]+)\.id$| );
1786: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1787: $envfile);
1788: my $current_counter=$env{'form.counter'};
1789: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1790: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1791: # Use a copy of the hash so we don't pervert it on future loop passes.
1792: my %answerenv = %{$moreenv};
1793: $answerenv{'answer_output_mode'}='tex';
1794: $answerenv{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1795: &Apache::lonnet::appenv(('form.counter' => $pre_counter));
1796: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$env{'request.course.id'},%answerenv);
1797: &Apache::lonnet::appenv(('form.counter' => $current_counter));
1798: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1799: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
1800: } else {
1801:
1802:
1803: my $header =&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1804: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
1805: $body .=&path_to_problem($res_url,$LaTeXwidth);
1806: $body .='\vskip 1 mm '.$ansrendered;
1807: $body = &encapsulate_minipage($body);
1808: $rendered = $header.$body;
1809: }
1810: }
1811: if ($remove_latex_header eq 'YES') {
1812: $rendered = &latex_header_footer_remove($rendered);
1813: } else {
1814: $rendered =~ s/\\end{document}//;
1815: }
1816: $current_output .= $rendered;
1817: } elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1818: $printed .= $curresline.':';
1819: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1820: my ($envfile) =
1821: ( $env{'user.environment'} =~ m|/([^/]+)\.id$| );
1822: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1823: $envfile);
1824: my $current_counter=$env{'form.counter'};
1825: if ($remove_latex_header eq 'YES') {
1826: $rendered = &latex_header_footer_remove($rendered);
1827: } else {
1828: $rendered =~ s/\\end{document}//;
1829: }
1830: $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
1831:
1832: } else {
1833: my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'},$curresline);
1834: if ($remove_latex_header ne 'NO') {
1835: $rendered = &latex_header_footer_remove($rendered);
1836: } else {
1837: $rendered =~ s/\\end{document}//;
1838: }
1839: $current_output .= $rendered;
1840: }
1841: }
1842: $remove_latex_header = 'YES';
1843: }
1844: if (&Apache::loncommon::connection_aborted($r)) { last; }
1845: }
1846: my $courseidinfo = &get_course();
1847: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1848: if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
1849: my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
1850: if ($current_output=~/\\documentclass/) {
1851: if ($columns_in_format == 1) {
1852: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
1853: } else {
1854: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fancyhead[LO]{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
1855:
1856: }
1857: } else {
1858: my $blankpages = '';
1859: for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blankpages.='\clearpage\strut\clearpage';}
1860: if ($columns_in_format == 1) {
1861: $current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\vspace*{-2 mm}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blankpages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$currentassignment.'}'.$namepostfix.'}} \vskip 5 mm '.$current_output;
1862: } else {
1863: $current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\vspace*{-2 mm}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blankpages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\fancyhead[LO]{\\textit{\\textbf{'.$fullname.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$currentassignment.'}'.$namepostfix.'}} \vskip 5 mm '.$current_output;
1864: }
1865: }
1866: return ($current_output,$fullname, $printed);
1867:
1868: }
1869:
1870: sub handler {
1871:
1872: my $r = shift;
1873:
1874: &init_perm();
1875:
1876:
1877:
1878: my $helper = printHelper($r);
1879: if (!ref($helper)) {
1880: return $helper;
1881: }
1882:
1883:
1884: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
1885:
1886:
1887:
1888:
1889: # If a figure conversion queue file exists for this user.domain
1890: # we delete it since it can only be bad (if it were good, printout.pl
1891: # would have deleted it the last time around.
1892:
1893: my $conversion_queuefile = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1894: if(-e $conversion_queuefile) {
1895: unlink $conversion_queuefile;
1896: }
1897: &output_data($r,$helper,\%parmhash);
1898: return OK;
1899: }
1900:
1901: use Apache::lonhelper;
1902:
1903: sub addMessage {
1904: my $text = shift;
1905: my $paramHash = Apache::lonhelper::getParamHash();
1906: $paramHash->{MESSAGE_TEXT} = $text;
1907: Apache::lonhelper::message->new();
1908: }
1909:
1910:
1911:
1912: sub init_perm {
1913: undef(%perm);
1914: $perm{'pav'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1915: if (!$perm{'pav'}) {
1916: $perm{'pav'}=&Apache::lonnet::allowed('pav',
1917: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1918: }
1919: $perm{'pfo'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1920: if (!$perm{'pfo'}) {
1921: $perm{'pfo'}=&Apache::lonnet::allowed('pfo',
1922: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1923: }
1924: }
1925:
1926: sub printHelper {
1927: my $r = shift;
1928:
1929: if ($r->header_only) {
1930: if ($env{'browser.mathml'}) {
1931: &Apache::loncommon::content_type($r,'text/xml');
1932: } else {
1933: &Apache::loncommon::content_type($r,'text/html');
1934: }
1935: $r->send_http_header;
1936: return OK;
1937: }
1938:
1939: # Send header, nocache
1940: if ($env{'browser.mathml'}) {
1941: &Apache::loncommon::content_type($r,'text/xml');
1942: } else {
1943: &Apache::loncommon::content_type($r,'text/html');
1944: }
1945: &Apache::loncommon::no_cache($r);
1946: $r->send_http_header;
1947: $r->rflush();
1948:
1949: # Unfortunately, this helper is so complicated we have to
1950: # write it by hand
1951:
1952: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
1953:
1954: my $helper = Apache::lonhelper::helper->new("Printing Helper");
1955: $helper->declareVar('symb');
1956: $helper->declareVar('postdata');
1957: $helper->declareVar('curseed');
1958: $helper->declareVar('probstatus');
1959: $helper->declareVar('filename');
1960: $helper->declareVar('construction');
1961: $helper->declareVar('assignment');
1962: $helper->declareVar('style_file');
1963: $helper->declareVar('student_sort');
1964: $helper->declareVar('FINISHPAGE');
1965: $helper->declareVar('PRINT_TYPE');
1966: $helper->declareVar("showallfoils");
1967:
1968: # The page breaks can get loaded initially from the course environment:
1969: # But we only do this in the initial state so that they are allowed to change.
1970: #
1971:
1972: # $helper->{VARS}->{FINISHPAGE} = '';
1973:
1974: &Apache::loncommon::restore_course_settings('print',
1975: {'pagebreaks' => 'scalar',
1976: 'lastprinttype' => 'scalar'});
1977:
1978:
1979: if($helper->{VARS}->{PRINT_TYPE} eq $env{'form.lastprinttype'}) {
1980: if (!defined ($env{"form.CURRENT_STATE"})) {
1981:
1982: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1983: } else {
1984: my $state = $env{"form.CURRENT_STATE"};
1985: if ($state eq "START") {
1986: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1987: }
1988: }
1989:
1990: }
1991:
1992:
1993: # This will persistently load in the data we want from the
1994: # very first screen.
1995: # Detect whether we're coming from construction space
1996: if ($env{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
1997: $helper->{VARS}->{'filename'} = "~$1/$2";
1998: $helper->{VARS}->{'construction'} = 1;
1999: } else {
2000: if ($env{'form.postdata'}) {
2001: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($env{'form.postdata'});
2002: }
2003: if ($env{'form.symb'}) {
2004: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2005: }
2006: if ($env{'form.url'}) {
2007: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2008: }
2009:
2010: }
2011:
2012: if ($env{'form.symb'}) {
2013: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2014: }
2015: if ($env{'form.url'}) {
2016: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2017:
2018: }
2019: $helper->{VARS}->{'symb'}=
2020: &Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
2021: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
2022: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
2023:
2024:
2025: # Extract map
2026: my $symb = $helper->{VARS}->{'symb'};
2027: my ($map, $id, $url);
2028: my $subdir;
2029:
2030: # Get the resource name from construction space
2031: if ($helper->{VARS}->{'construction'}) {
2032: $resourceTitle = substr($helper->{VARS}->{'filename'},
2033: rindex($helper->{VARS}->{'filename'}, '/')+1);
2034: $subdir = substr($helper->{VARS}->{'filename'},
2035: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
2036: } else {
2037: ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
2038: $helper->{VARS}->{'postdata'} =
2039: &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
2040:
2041: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
2042: my $postdata = $helper->{VARS}->{'postdata'};
2043: $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
2044: }
2045: $subdir = &Apache::lonnet::filelocation("", $url);
2046: }
2047: if (!$helper->{VARS}->{'curseed'} && $env{'form.curseed'}) {
2048: $helper->{VARS}->{'curseed'}=$env{'form.curseed'};
2049: }
2050: if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
2051: $helper->{VARS}->{'probstatus'}=$env{'form.problemtype'};
2052: }
2053:
2054: my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
2055:
2056: Apache::lonhelper::registerHelperTags();
2057:
2058: # "Delete everything after the last slash."
2059: $subdir =~ s|/[^/]+$||;
2060: if (not $helper->{VARS}->{'construction'}) {
2061: $subdir=$Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$subdir;
2062: }
2063: # "Remove all duplicate slashes."
2064: $subdir =~ s|/+|/|g;
2065:
2066: # What can be printed is a very dynamic decision based on
2067: # lots of factors. So we need to dynamically build this list.
2068: # To prevent security leaks, states are only added to the wizard
2069: # if they can be reached, which ensures manipulating the form input
2070: # won't allow anyone to reach states they shouldn't have permission
2071: # to reach.
2072:
2073: # printChoices is tracking the kind of printing the user can
2074: # do, and will be used in a choices construction later.
2075: # In the meantime we will be adding states and elements to
2076: # the helper by hand.
2077: my $printChoices = [];
2078: my $paramHash;
2079:
2080: if ($resourceTitle) {
2081: push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('what you just saw on the screen').")", 'current_document', 'PAGESIZE'];
2082: }
2083:
2084: # Useful filter strings
2085: my $isProblem = '($res->is_problem()||$res->contains_problem) ';
2086: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
2087: my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
2088: my $isNotMap = '!$res->is_sequence()';
2089: $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
2090: my $isMap = '$res->is_map()';
2091: my $symbFilter = '$res->shown_symb()';
2092: my $urlValue = '$res->link()';
2093:
2094: $helper->declareVar('SEQUENCE');
2095:
2096:
2097:
2098: # If we're in a sequence...
2099: if (($helper->{'VARS'}->{'construction'} ne '1') &&
2100:
2101: $helper->{VARS}->{'postdata'} &&
2102: $helper->{VARS}->{'assignment'}) {
2103: # Allow problems from sequence
2104: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
2105: # Allow all resources from sequence
2106: push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
2107:
2108: my $helperFragment = <<HELPERFRAGMENT;
2109: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
2110: <message>(mark them then click "next" button) <br /></message>
2111: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2112: closeallpages="1">
2113: <nextstate>PAGESIZE</nextstate>
2114: <filterfunc>return $isProblem;</filterfunc>
2115: <mapurl>$map</mapurl>
2116: <valuefunc>return $symbFilter;</valuefunc>
2117: <option text='Newpage' variable='FINISHPAGE' />
2118: </resource>
2119: </state>
2120:
2121: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
2122: <message>(mark them then click "next" button) <br /></message>
2123: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2124: closeallpages="1">
2125: <nextstate>PAGESIZE</nextstate>
2126: <filterfunc>return $isNotMap;</filterfunc>
2127: <mapurl>$map</mapurl>
2128: <valuefunc>return $symbFilter;</valuefunc>
2129: <option text='Newpage' variable='FINISHPAGE' />
2130: </resource>
2131: </state>
2132: HELPERFRAGMENT
2133:
2134: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
2135: }
2136:
2137: # If the user has pfo (print for otheres) allow them to print all
2138: # problems and resources in the entier course, optionally for selected students
2139: if ($perm{'pfo'} &&
2140: ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) {
2141:
2142: push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
2143: push @{$printChoices}, ['<b>Resources</b> from <b>entire course</b>', 'all_resources', 'ALL_RESOURCES'];
2144: &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
2145: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
2146: <message>(mark them then click "next" button) <br /></message>
2147: <resource variable="RESOURCES" toponly='0' multichoice="1"
2148: suppressEmptySequences='0' addstatus="1" closeallpages="1">
2149: <nextstate>PAGESIZE</nextstate>
2150: <filterfunc>return $isProblemOrMap;</filterfunc>
2151: <choicefunc>return $isNotMap;</choicefunc>
2152: <valuefunc>return $symbFilter;</valuefunc>
2153: <option text='Newpage' variable='FINISHPAGE' />
2154: </resource>
2155: </state>
2156: <state name="ALL_RESOURCES" title="Select Resource(s) to print">
2157: <message>(Mark them then click "next" button) <br /> </message>
2158: <resource variable="RESOURCES" toponly='0' multichoice='1'
2159: suppressEmptySequences='0' addstatus='1' closeallpages='1'>
2160: <nextstate>PAGESIZE</nextstate>
2161: <filterfunc>return $isNotMap; </filterfunc>
2162: <valuefunc>return $symbFilter;</valuefunc>
2163: <option text='NewPage' variable='FINISHPAGE' />
2164: </resource>
2165: </state>
2166: ALL_PROBLEMS
2167:
2168: if ($helper->{VARS}->{'assignment'}) {
2169: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('selected students')."</b>", 'problems_for_students', 'CHOOSE_STUDENTS'];
2170: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('anonymous students')."</b>", 'problems_for_anon', 'CHOOSE_ANON1'];
2171: }
2172: my $resource_selector=<<RESOURCE_SELECTOR;
2173: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2174: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2175: closeallpages="1">
2176: <filterfunc>return $isProblem;</filterfunc>
2177: <mapurl>$map</mapurl>
2178: <valuefunc>return $symbFilter;</valuefunc>
2179: <option text='New Page' variable='FINISHPAGE' />
2180: </resource>
2181: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2182: <choices variable="EMPTY_PAGES">
2183: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2184: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2185: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2186: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2187: </choices>
2188: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2189: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2190: RESOURCE_SELECTOR
2191:
2192: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
2193: <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
2194: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" coursepersonnel="1"/>
2195: <message><b>Select sort order</b> </message>
2196: <choices variable='student_sort'>
2197: <choice computer='0'>Sort by section then student</choice>
2198: <choice computer='1'>Sort by students across sections.</choice>
2199: </choices>
2200: $resource_selector
2201: </state>
2202: CHOOSE_STUDENTS
2203:
2204: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2205: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2206: my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
2207: my $namechoice='<choice></choice>';
2208: foreach my $name (sort {uc($a) cmp uc($b)} @names) {
2209: if ($name =~ /^error: 2 /) { next; }
2210: if ($name =~ /^type\0/) { next; }
2211: $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
2212: }
2213:
2214:
2215: my %code_values;
2216: my %codes_to_print;
2217: foreach my $key (@names) {
2218: %code_values = &Apache::grades::get_codes($key, $cdom, $cnum);
2219: foreach my $key (keys(%code_values)) {
2220: $codes_to_print{$key} = 1;
2221: }
2222: }
2223:
2224: my $code_selection = "<choice></choice>\n";
2225: foreach my $code (sort {uc($a) cmp uc($b)} (keys(%codes_to_print))) {
2226: my $choice = $code;
2227: if ($code =~ /^[A-Z]+$/) { # Alpha code
2228: $choice = &letters_to_num($code);
2229: }
2230: $code_selection .= ' <choice computer="'.$choice.'">'.$code."</choice>\n";
2231: }
2232: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
2233: my $codechoice='';
2234: foreach my $line (<FH>) {
2235: my ($name,$description,$code_type,$code_length)=
2236: (split(/:/,$line))[0,1,2,4];
2237: if ($code_length > 0 &&
2238: $code_type =~/^(letter|number|-1)/) {
2239: $codechoice.='<choice computer="'.$name.'">'.$description.'</choice>';
2240: }
2241: }
2242: if ($codechoice eq '') {
2243: $codechoice='<choice computer="default">Default</choice>';
2244: }
2245: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
2246: <state name="CHOOSE_ANON1" title="Select Students and Resources">
2247: <nextstate>PAGESIZE</nextstate>
2248: <message><table><tr><td><b>Number of anonymous assignments to print:</b></td><td></message>
2249: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2250: <validator>
2251: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2252: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2253: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2254: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2255: return "You need to specify the number of assignments to print";
2256: }
2257: return undef;
2258: </validator>
2259: </string>
2260: <message></td></tr><tr><td></message>
2261: <message><b>Names to store the CODEs under for later:</b></message>
2262: <message></td><td></message>
2263: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2264: <message></td></tr><tr><td></message>
2265: <message><b>Bubble sheet type:</b></message>
2266: <message></td><td></message>
2267: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2268: $codechoice
2269: </dropdown>
2270: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2271: <message></td></tr><tr><td></message>
2272: <message><b>Enter a CODE to print:</b></td><td></message>
2273: <string variable="SINGLE_CODE" size="10">
2274: <validator>
2275: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2276: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2277: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2278: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2279: \$helper->{'VARS'}{'CODE_OPTION'});
2280: } else {
2281: return undef; # Other forces control us.
2282: }
2283: </validator>
2284: </string>
2285: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2286: <message><b>Reprint a set of saved CODEs:</b></message>
2287: <message></td><td></message>
2288: <dropdown variable="REUSE_OLD_CODES">
2289: $namechoice
2290: </dropdown>
2291: <message></td></tr></table></message>
2292: <message><hr width='33%' /></message>
2293: $resource_selector
2294: </state>
2295: CHOOSE_ANON1
2296:
2297:
2298: if ($helper->{VARS}->{'assignment'}) {
2299: push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('selected students')."</b>", 'resources_for_students', 'CHOOSE_STUDENTS1'];
2300: push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('from')." <b><i>$sequenceTitle</i></b> ".&mt('for')." <b>".&mt('anonymous students')."</b>", 'resources_for_anon', 'CHOOSE_ANON2'];
2301: }
2302:
2303:
2304: $resource_selector=<<RESOURCE_SELECTOR;
2305: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2306: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2307: closeallpages="1">
2308: <filterfunc>return $isNotMap;</filterfunc>
2309: <mapurl>$map</mapurl>
2310: <valuefunc>return $symbFilter;</valuefunc>
2311: <option text='Newpage' variable='FINISHPAGE' />
2312: </resource>
2313: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2314: <choices variable="EMPTY_PAGES">
2315: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2316: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2317: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2318: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2319: </choices>
2320: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2321: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2322: RESOURCE_SELECTOR
2323:
2324: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
2325: <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
2326: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" coursepersonnel="1" />
2327: <choices variable='student_sort'>
2328: <choice computer='0'>Sort by section then student</choice>
2329: <choice computer='1'>Sort by students across sections.</choice>
2330: </choices>
2331:
2332: $resource_selector
2333: </state>
2334: CHOOSE_STUDENTS1
2335:
2336: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
2337: <state name="CHOOSE_ANON2" title="Select Students and Resources">
2338: <nextstate>PAGESIZE</nextstate>
2339: <message><table><tr><td><b>Number of anonymous assignments to print:</b></td><td></message>
2340: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2341: <validator>
2342: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2343: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2344: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2345: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2346: return "You need to specify the number of assignments to print";
2347: }
2348: return undef;
2349: </validator>
2350: </string>
2351: <message></td></tr><tr><td></message>
2352: <message><b>Names to store the CODEs under for later:</b></message>
2353: <message></td><td></message>
2354: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2355: <message></td></tr><tr><td></message>
2356: <message><b>Bubble sheet type:</b></message>
2357: <message></td><td></message>
2358: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2359: $codechoice
2360: </dropdown>
2361: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2362: <message></td></tr><tr><td></message>
2363: <message><b>Enter a CODE to print:</b></td><td></message>
2364: <string variable="SINGLE_CODE" size="10">
2365: <validator>
2366: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2367: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2368: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2369: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2370: \$helper->{'VARS'}{'CODE_OPTION'});
2371: } else {
2372: return undef; # Other forces control us.
2373: }
2374: </validator>
2375: </string>
2376: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2377: <message><b>Reprint a set of saved CODEs:</b></message>
2378: <message></td><td></message>
2379: <dropdown variable="REUSE_OLD_CODES">
2380: $namechoice
2381: </dropdown>
2382: <message></td></tr></table></message>
2383: <message><hr width='33%' /></message>
2384: $resource_selector
2385: </state>
2386: CHOOSE_ANON2
2387: }
2388:
2389: # FIXME: That RE should come from a library somewhere.
2390: if ((((&Apache::lonnet::allowed('bre',$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 $perm{'pav'} and $subdir ne $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/') {
2391: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from current subdirectory')." <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
2392:
2393: my $f = '$filename';
2394: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
2395: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
2396: <message>(mark them then click "next" button) <br /></message>
2397: <files variable="FILES" multichoice='1'>
2398: <nextstate>PAGESIZE</nextstate>
2399: <filechoice>return '$subdir';</filechoice>
2400: CHOOSE_FROM_SUBDIR
2401:
2402: # this is broken up because I really want interpolation above,
2403: # and I really DON'T want it below
2404: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
2405: <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
2406: $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
2407: </filefilter>
2408: </files>
2409: </state>
2410: CHOOSE_FROM_SUBDIR
2411: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2412: }
2413:
2414: # Allow the user to select any sequence in the course, feed it to
2415: # another resource selector for that sequence
2416: if (!$helper->{VARS}->{'construction'}) {
2417: push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
2418: 'select_sequences', 'CHOOSE_SEQUENCE'];
2419: my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
2420: #Escape apostrophes and backslashes for Perl
2421: $escapedSequenceName =~ s/\\/\\\\/g;
2422: $escapedSequenceName =~ s/'/\\'/g;
2423: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
2424: <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
2425: <message>Select the sequence to print resources from:</message>
2426: <resource variable="SEQUENCE">
2427: <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
2428: <filterfunc>return \$res->is_sequence;</filterfunc>
2429: <valuefunc>return $urlValue;</valuefunc>
2430: <choicefunc>return \$res->hasResource(\$res,sub { return !\$_[0]->is_sequence() },0,0);
2431: </choicefunc>
2432: </resource>
2433: </state>
2434: <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
2435: <message>(mark desired resources then click "next" button) <br /></message>
2436: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2437: closeallpages="1">
2438: <nextstate>PAGESIZE</nextstate>
2439: <filterfunc>return $isProblem</filterfunc>
2440: <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
2441: <valuefunc>return $symbFilter;</valuefunc>
2442: <option text='Newpage' variable='FINISHPAGE' />
2443: </resource>
2444: </state>
2445: CHOOSE_FROM_ANY_SEQUENCE
2446: }
2447:
2448: # Generate the first state, to select which resources get printed.
2449: Apache::lonhelper::state->new("START", "Select Printing Options:");
2450: $paramHash = Apache::lonhelper::getParamHash();
2451: $paramHash->{MESSAGE_TEXT} = "";
2452: Apache::lonhelper::message->new();
2453: $paramHash = Apache::lonhelper::getParamHash();
2454: $paramHash->{'variable'} = 'PRINT_TYPE';
2455: $paramHash->{CHOICES} = $printChoices;
2456: Apache::lonhelper::choices->new();
2457:
2458: my $startedTable = 0; # have we started an HTML table yet? (need
2459: # to close it later)
2460:
2461: if (($perm{'pav'} and &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) or
2462: ($helper->{VARS}->{'construction'} eq '1')) {
2463: addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
2464: $paramHash = Apache::lonhelper::getParamHash();
2465: $paramHash->{'variable'} = 'ANSWER_TYPE';
2466: $helper->declareVar('ANSWER_TYPE');
2467: $paramHash->{CHOICES} = [
2468: ['Without Answers', 'yes'],
2469: ['With Answers', 'no'],
2470: ['Only Answers', 'only']
2471: ];
2472: Apache::lonhelper::dropdown->new();
2473: addMessage("</td></tr>");
2474: $startedTable = 1;
2475: }
2476:
2477: if ($perm{'pav'}) {
2478: if (!$startedTable) {
2479: addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
2480: $startedTable = 1;
2481: } else {
2482: addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
2483: }
2484: $paramHash = Apache::lonhelper::getParamHash();
2485: $paramHash->{'variable'} = 'LATEX_TYPE';
2486: $helper->declareVar('LATEX_TYPE');
2487: if ($helper->{VARS}->{'construction'} eq '1') {
2488: $paramHash->{CHOICES} = [
2489: ['standard LaTeX mode', 'standard'],
2490: ['LaTeX batchmode', 'batchmode'], ];
2491: } else {
2492: $paramHash->{CHOICES} = [
2493: ['LaTeX batchmode', 'batchmode'],
2494: ['standard LaTeX mode', 'standard'] ];
2495: }
2496: Apache::lonhelper::dropdown->new();
2497:
2498: addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
2499: $paramHash = Apache::lonhelper::getParamHash();
2500: $paramHash->{'variable'} = 'TABLE_CONTENTS';
2501: $helper->declareVar('TABLE_CONTENTS');
2502: $paramHash->{CHOICES} = [
2503: ['No', 'no'],
2504: ['Yes', 'yes'] ];
2505: Apache::lonhelper::dropdown->new();
2506: addMessage("</td></tr>");
2507:
2508: if (not $helper->{VARS}->{'construction'}) {
2509: addMessage("<tr><td align='right'>Print Index: </td><td>");
2510: $paramHash = Apache::lonhelper::getParamHash();
2511: $paramHash->{'variable'} = 'TABLE_INDEX';
2512: $helper->declareVar('TABLE_INDEX');
2513: $paramHash->{CHOICES} = [
2514: ['No', 'no'],
2515: ['Yes', 'yes'] ];
2516: Apache::lonhelper::dropdown->new();
2517: addMessage("</td></tr>");
2518: addMessage("<tr><td align='right'>Print Discussions: </td><td>");
2519: $paramHash = Apache::lonhelper::getParamHash();
2520: $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';
2521: $helper->declareVar('PRINT_DISCUSSIONS');
2522: $paramHash->{CHOICES} = [
2523: ['No', 'no'],
2524: ['Yes', 'yes'] ];
2525: Apache::lonhelper::dropdown->new();
2526: addMessage("</td></tr>");
2527:
2528: addMessage("<tr><td align = 'right'> </td><td>");
2529: $paramHash = Apache::lonhelper::getParamHash();
2530: $paramHash->{'multichoice'} = "true";
2531: $paramHash->{'allowempty'} = "true";
2532: $paramHash->{'variable'} = "showallfoils";
2533: $paramHash->{'CHOICES'} = [ ["Show all foils", "1"] ];
2534: Apache::lonhelper::choices->new();
2535: addMessage("</td></tr>");
2536: }
2537:
2538: if ($helper->{'VARS'}->{'construction'}) {
2539: my $stylevalue=$env{'construct.style'};
2540: my $xmlfrag .= <<"RNDSEED";
2541: <message><tr><td align='right'>Use random seed: </td><td></message>
2542: <string variable="curseed" size="15" maxlength="15">
2543: <defaultvalue>
2544: return $helper->{VARS}->{'curseed'};
2545: </defaultvalue>
2546: </string>
2547: <message></td></tr><tr><td align="right">Use style file:</td><td></message>
2548: <message><input type="text" size="40" name="style_file_value" value="$stylevalue" /> <a href="javascript:openbrowser('helpform','style_file_value','sty')">Select style file</a> </td><tr><td></message>
2549: <choices allowempty="1" multichoice="true" variable="showallfoils">
2550: <choice computer="1">Show all foils?</choice>
2551: </choices>
2552: <message></td></tr></message>
2553: RNDSEED
2554: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2555: $helper->{'VARS'}->{'style_file'}=$env{'form.style_file_value'};
2556:
2557: }
2558: }
2559:
2560:
2561:
2562:
2563: if ($startedTable) {
2564: addMessage("</table>");
2565: }
2566:
2567: Apache::lonprintout::page_format_state->new("FORMAT");
2568:
2569: # Generate the PAGESIZE state which will offer the user the margin
2570: # choices if they select one column
2571: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
2572: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
2573:
2574:
2575: $helper->process();
2576:
2577:
2578: # MANUAL BAILOUT CONDITION:
2579: # If we're in the "final" state, bailout and return to handler
2580: if ($helper->{STATE} eq 'FINAL') {
2581: return $helper;
2582: }
2583:
2584: $r->print($helper->display());
2585: if ($helper->{STATE} eq 'START') {
2586: &recently_generated($r);
2587: }
2588: &Apache::lonhelper::unregisterHelperTags();
2589:
2590: return OK;
2591: }
2592:
2593:
2594: 1;
2595:
2596: package Apache::lonprintout::page_format_state;
2597:
2598: =pod
2599:
2600: =head1 Helper element: page_format_state
2601:
2602: See lonhelper.pm documentation for discussion of the helper framework.
2603:
2604: Apache::lonprintout::page_format_state is an element that gives the
2605: user an opportunity to select the page layout they wish to print
2606: with: Number of columns, portrait/landscape, and paper size. If you
2607: want to change the paper size choices, change the @paperSize array
2608: contents in this package.
2609:
2610: page_format_state is always directly invoked in lonprintout.pm, so there
2611: is no tag interface. You actually pass parameters to the constructor.
2612:
2613: =over 4
2614:
2615: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2616:
2617: =back
2618:
2619: =cut
2620:
2621: use Apache::lonhelper;
2622:
2623: no strict;
2624: @ISA = ("Apache::lonhelper::element");
2625: use strict;
2626: use Apache::lonlocal;
2627: use Apache::lonnet;
2628:
2629: my $maxColumns = 2;
2630: # it'd be nice if these all worked
2631: #my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2632: # "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
2633: # "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]",
2634: # "a5 [148x210 mm]", "a6 [105x148 mm]" );
2635: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2636: "a4 [210x297 mm]");
2637:
2638: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
2639: # Paper type
2640:
2641: sub new {
2642: my $self = Apache::lonhelper::element->new();
2643:
2644: shift;
2645:
2646: $self->{'variable'} = shift;
2647: my $helper = Apache::lonhelper::getHelper();
2648: $helper->declareVar($self->{'variable'});
2649: bless($self);
2650: return $self;
2651: }
2652:
2653: sub render {
2654: my $self = shift;
2655: my $helper = Apache::lonhelper::getHelper();
2656: my $result = '';
2657: my $var = $self->{'variable'};
2658: my $PageLayout=&mt('Page layout');
2659: my $NumberOfColumns=&mt('Number of columns');
2660: my $PaperType=&mt('Paper type');
2661: $result .= <<STATEHTML;
2662:
2663: <hr width="33%" />
2664: <table cellpadding="3">
2665: <tr>
2666: <td align="center"><b>$PageLayout</b></td>
2667: <td align="center"><b>$NumberOfColumns</b></td>
2668: <td align="center"><b>$PaperType</b></td>
2669: </tr>
2670: <tr>
2671: <td>
2672: <label><input type="radio" name="${var}.layout" value="L" /> Landscape </label><br />
2673: <label><input type="radio" name="${var}.layout" value="P" checked='1' /> Portrait </label>
2674: </td>
2675: <td align="center">
2676: <select name="${var}.cols">
2677: STATEHTML
2678:
2679: my $i;
2680: for ($i = 1; $i <= $maxColumns; $i++) {
2681: if ($i == 2) {
2682: $result .= "<option value='$i' selected>$i</option>\n";
2683: } else {
2684: $result .= "<option value='$i'>$i</option>\n";
2685: }
2686: }
2687:
2688: $result .= "</select></td><td>\n";
2689: $result .= "<select name='${var}.paper'>\n";
2690:
2691: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
2692: my $DefaultPaperSize=lc($parmhash{'default_paper_size'});
2693: $DefaultPaperSize=~s/\s//g;
2694: if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
2695: $i = 0;
2696: foreach (@paperSize) {
2697: $_=~/(\w+)/;
2698: my $papersize=$1;
2699: if ($paperSize[$i]=~/$DefaultPaperSize/) {
2700: $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
2701: } else {
2702: $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
2703: }
2704: $i++;
2705: }
2706: $result .= "</select></td></tr></table>";
2707: return $result;
2708: }
2709:
2710: sub postprocess {
2711: my $self = shift;
2712:
2713: my $var = $self->{'variable'};
2714: my $helper = Apache::lonhelper->getHelper();
2715: $helper->{VARS}->{$var} =
2716: $env{"form.$var.layout"} . '|' . $env{"form.$var.cols"} . '|' .
2717: $env{"form.$var.paper"};
2718: return 1;
2719: }
2720:
2721: 1;
2722:
2723: package Apache::lonprintout::page_size_state;
2724:
2725: =pod
2726:
2727: =head1 Helper element: page_size_state
2728:
2729: See lonhelper.pm documentation for discussion of the helper framework.
2730:
2731: Apache::lonprintout::page_size_state is an element that gives the
2732: user the opportunity to further refine the page settings if they
2733: select a single-column page.
2734:
2735: page_size_state is always directly invoked in lonprintout.pm, so there
2736: is no tag interface. You actually pass parameters to the constructor.
2737:
2738: =over 4
2739:
2740: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2741:
2742: =back
2743:
2744: =cut
2745:
2746: use Apache::lonhelper;
2747: use Apache::lonnet;
2748: no strict;
2749: @ISA = ("Apache::lonhelper::element");
2750: use strict;
2751:
2752:
2753:
2754: sub new {
2755: my $self = Apache::lonhelper::element->new();
2756:
2757: shift; # disturbs me (probably prevents subclassing) but works (drops
2758: # package descriptor)... - Jeremy
2759:
2760: $self->{'variable'} = shift;
2761: my $helper = Apache::lonhelper::getHelper();
2762: $helper->declareVar($self->{'variable'});
2763:
2764: # The variable name of the format element, so we can look into
2765: # $helper->{VARS} to figure out whether the columns are one or two
2766: $self->{'formatvar'} = shift;
2767:
2768: # The state to transition to after selection, or after discovering
2769: # the cols are not set to 1
2770: $self->{NEXTSTATE} = shift;
2771: bless($self);
2772: return $self;
2773: }
2774:
2775: sub render {
2776: my $self = shift;
2777: my $helper = Apache::lonhelper::getHelper();
2778: my $result = '';
2779: my $var = $self->{'variable'};
2780:
2781: if (defined $self->{ERROR_MSG}) {
2782: $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
2783: }
2784:
2785: $result .= <<ELEMENTHTML;
2786:
2787: <p>How should the column be formatted?</p>
2788:
2789: <table cellpadding='3'>
2790: <tr>
2791: <td align='right'><b>Width</b>:</td>
2792: <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
2793: <td align='left'>
2794: <select name='$var.widthunit'>
2795: <option>cm</option><option>in</option>
2796: </select>
2797: </td>
2798: </tr>
2799: <tr>
2800: <td align='right'><b>Height</b>:</td>
2801: <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
2802: <td align='left'>
2803: <select name='$var.heightunit'>
2804: <option>cm</option><option>in</option>
2805: </select>
2806: </td>
2807: </tr>
2808: <tr>
2809: <td align='right'><b>Left margin</b>:</td>
2810: <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
2811: <td align='left'>
2812: <select name='$var.lmarginunit'>
2813: <option>cm</option><option>in</option>
2814: </select>
2815: </td>
2816: </tr>
2817: </table>
2818:
2819: <p>Hint: Some instructors like to leave scratch space for the student by
2820: making the width much smaller than the width of the page.</p>
2821:
2822: ELEMENTHTML
2823:
2824: return $result;
2825: }
2826:
2827: # If the user didn't select 1 column, skip this state.
2828: sub preprocess {
2829: my $self = shift;
2830: my $helper = Apache::lonhelper::getHelper();
2831:
2832: my $format = $helper->{VARS}->{$self->{'formatvar'}};
2833: if (substr($format, 2, 1) ne '1') {
2834: $helper->changeState($self->{NEXTSTATE});
2835: }
2836:
2837: return 1;
2838: }
2839:
2840: sub postprocess {
2841: my $self = shift;
2842:
2843: my $var = $self->{'variable'};
2844: my $helper = Apache::lonhelper->getHelper();
2845: my $width = $helper->{VARS}->{$var .'.width'} = $env{"form.${var}.width"};
2846: my $height = $helper->{VARS}->{$var .'.height'} = $env{"form.${var}.height"};
2847: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $env{"form.${var}.lmargin"};
2848: $helper->{VARS}->{$var .'.widthunit'} = $env{"form.${var}.widthunit"};
2849: $helper->{VARS}->{$var .'.heightunit'} = $env{"form.${var}.heightunit"};
2850: $helper->{VARS}->{$var .'.lmarginunit'} = $env{"form.${var}.lmarginunit"};
2851:
2852: my $error = '';
2853:
2854: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
2855: # by an optional period, followed by digits, ending the string
2856:
2857: if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2858: $error .= "Invalid width; please type only a number.<br />\n";
2859: }
2860: if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2861: $error .= "Invalid height; please type only a number.<br />\n";
2862: }
2863: if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2864: $error .= "Invalid left margin; please type only a number.<br />\n";
2865: }
2866:
2867: if (!$error) {
2868: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
2869: return 1;
2870: } else {
2871: $self->{ERROR_MSG} = $error;
2872: return 0;
2873: }
2874: }
2875:
2876:
2877:
2878: __END__
2879:
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