1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.428 2006/03/08 22:32:11 albertel 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:
1124: &Apache::lonxml::clear_problem_counter();
1125:
1126: $resources_printed .= $currentURL.':';
1127: $texversion.=&Apache::lonnet::ssi($currentURL,%form);
1128:
1129: &Apache::lonxml::clear_problem_counter();
1130:
1131: &Apache::lonnet::delenv('request.filename');
1132: }
1133: # current document with answers.. no need to encap in minipage
1134: # since there's only one answer.
1135:
1136: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1137: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1138: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1139: $form{'grade_target'}='answer';
1140: $form{'answer_output_mode'}='tex';
1141: $form{'rndseed'}=$rndseed;
1142: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
1143: $form{'problemtype'}='exam';
1144: }
1145: $resources_printed .= $currentURL.':';
1146: my $answer=&Apache::lonnet::ssi($currentURL,%form);
1147: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1148: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1149: } else {
1150: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1151: if ($helper->{'VARS'}->{'construction'} ne '1') {
1152: $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1153: $texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
1154: } else {
1155: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1156: my $URLpath=$cleanURL;
1157: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1158: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1159: }
1160: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1161: }
1162: }
1163: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1164: $texversion=&IndexCreation($texversion,$currentURL);
1165: }
1166: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1167: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
1168:
1169: }
1170: $result .= $texversion;
1171: if ($currentURL=~m/\.page\s*$/) {
1172: ($result,$number_of_columns) = &page_cleanup($result);
1173: }
1174: } elsif ($cleanURL!~m|^/adm/|
1175: && $currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
1176: #printing content of sequence from the construction space
1177: my $flag_latex_header_remove = 'NO';
1178: my $rndseed=time;
1179: if ($helper->{'VARS'}->{'curseed'}) {
1180: $rndseed=$helper->{'VARS'}->{'curseed'};
1181: }
1182: $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
1183: my $errtext=&Apache::lonratedt::mapread($currentURL);
1184: for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
1185: $Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
1186: my $urlp=$2;
1187: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
1188: my $texversion='';
1189: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1190: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1191: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1192: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1193: $form{'rndseed'}=$rndseed;
1194: $resources_printed .=$urlp.':';
1195: $texversion=&Apache::lonnet::ssi($urlp,%form);
1196: }
1197: if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1198: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) &&
1199: ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
1200: # Don't permanently modify %$form...
1201: my %answerform = %form;
1202: $answerform{'grade_target'}='answer';
1203: $answerform{'answer_output_mode'}='tex';
1204: $answerform{'rndseed'}=$rndseed;
1205: $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
1206: if ($urlp=~/\/res\//) {$env{'request.state'}='published';}
1207: $resources_printed .= $urlp.':';
1208: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1209: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1210: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1211: } else {
1212: # If necessary, encapsulate answer in minipage:
1213:
1214: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1215: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1216: $body.=&path_to_problem($urlp,$LaTeXwidth);
1217: $body.='\vskip 1 mm '.$answer.'\end{document}';
1218: $body = &encapsulate_minipage($body);
1219: $texversion.=$body;
1220: }
1221: }
1222: if ($flag_latex_header_remove ne 'NO') {
1223: $texversion = &latex_header_footer_remove($texversion);
1224: } else {
1225: $texversion =~ s/\\end{document}//;
1226: }
1227: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1228: $texversion=&IndexCreation($texversion,$urlp);
1229: }
1230: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
1231: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1232: }
1233: $result.=$texversion;
1234: $flag_latex_header_remove = 'YES';
1235: } elsif ($urlp=~/\.(sequence|page)$/) {
1236: $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
1237: }
1238: }
1239: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
1240: $result .= '\end{document}';
1241: } elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1242: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1243: if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
1244: $resources_printed .= $currentURL.':';
1245: my $texversion=&Apache::lonnet::ssi($currentURL,%form);
1246: $result .= $texversion;
1247: } else {
1248: $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'},
1249: $helper->{'VARS'}->{'symb'});
1250: }
1251: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
1252: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
1253: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
1254: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') or # BUGBUG
1255: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) {
1256: #-- produce an output string
1257: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
1258: $selectionmade = 2;
1259: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
1260: $selectionmade = 3;
1261: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
1262: $selectionmade = 4;
1263: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') { #BUGBUG
1264: $selectionmade = 4;
1265: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
1266: $selectionmade = 7;
1267: }
1268: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1269: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1270: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1271: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1272: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
1273: my $flag_latex_header_remove = 'NO';
1274: my $flag_page_in_sequence = 'NO';
1275: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1276: my $prevassignment='';
1277:
1278: &Apache::lonxml::clear_problem_counter();
1279:
1280: my $pbreakresources = keys %page_breaks;
1281: for (my $i=0;$i<=$#master_seq;$i++) {
1282:
1283: # Note due to document structure, not allowed to put \newpage
1284: # prior to the first resource
1285:
1286: if (defined $page_breaks{$master_seq[$i]}) {
1287: if($i != 0) {
1288: $result.="\\newpage\n";
1289: }
1290: }
1291: my ($sequence,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
1292: $urlp=&Apache::lonnet::clutter($urlp);
1293: $form{'symb'}=$master_seq[$i];
1294:
1295: my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #title of the assignment which contains this problem
1296: if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
1297: if ($i==0) {$prevassignment=$assignment;}
1298: my $texversion='';
1299: if ($urlp!~m|^/adm/|
1300: && $urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1301: $resources_printed .= $urlp.':';
1302:
1303: &Apache::lonxml::remember_problem_counter();
1304:
1305: $texversion.=&Apache::lonnet::ssi($urlp,%form);
1306: if ($urlp=~/\.page$/) {
1307: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
1308: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
1309: $texversion =~ s/\\end{document}\d*/\\end{document}/;
1310: $flag_page_in_sequence = 'YES';
1311: }
1312:
1313: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1314: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1315: # Don't permanently pervert the %form hash
1316: my %answerform = %form;
1317: $answerform{'grade_target'}='answer';
1318: $answerform{'answer_output_mode'}='tex';
1319: $resources_printed .= $urlp.':';
1320:
1321: &Apache::lonxml::restore_problem_counter();
1322: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1323:
1324: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1325: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1326: } else {
1327: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
1328: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1329: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($master_seq[$i]).'}\vskip 0 mm ';
1330: $body .= &path_to_problem ($urlp,$LaTeXwidth);
1331: $body .='\vskip 1 mm '.$answer;
1332: $body = &encapsulate_minipage($body);
1333: $texversion .= $body;
1334: } else {
1335: $texversion='';
1336: }
1337: }
1338: }
1339: if ($flag_latex_header_remove ne 'NO') {
1340: $texversion = &latex_header_footer_remove($texversion);
1341: } else {
1342: $texversion =~ s/\\end{document}//;
1343: }
1344: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1345: $texversion=&IndexCreation($texversion,$urlp);
1346: }
1347: if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
1348: my $name = &get_name();
1349: my $courseidinfo = &get_course();
1350: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1351: $prevassignment=$assignment;
1352: if ($numberofcolumns eq '1') {
1353: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
1354: } else {
1355: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\fancyhead[LO]{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
1356: }
1357: }
1358: $result .= $texversion;
1359: $flag_latex_header_remove = 'YES';
1360: } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1361: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1362: if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
1363: $resources_printed .= $urlp.':';
1364: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1365: if ($flag_latex_header_remove ne 'NO') {
1366: $texversion = &latex_header_footer_remove($texversion);
1367: } else {
1368: $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
1369: }
1370: $result .= $texversion;
1371: $flag_latex_header_remove = 'YES';
1372: } else {
1373: $texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'},
1374: $master_seq[$i]);
1375: if ($flag_latex_header_remove ne 'NO') {
1376: $texversion = &latex_header_footer_remove($texversion);
1377: } else {
1378: $texversion =~ s/\\end{document}//;
1379: }
1380: $result .= $texversion;
1381: $flag_latex_header_remove = 'YES';
1382: }
1383: if (&Apache::loncommon::connection_aborted($r)) { last; }
1384: }
1385: &Apache::lonxml::clear_problem_counter();
1386: if ($flag_page_in_sequence eq 'YES') {
1387: $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
1388: }
1389: $result .= '\end{document}';
1390: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
1391: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
1392:
1393:
1394: #-- prints assignments for whole class or for selected students
1395: my $type;
1396: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
1397: $selectionmade=5;
1398: $type='problems';
1399: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
1400: $selectionmade=8;
1401: $type='resources';
1402: }
1403: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
1404: # The normal sort order is by section then by students within the
1405: # section. If the helper var student_sort is 1, then the user has elected
1406: # to override this and output the students by name.
1407: # Each element of the students array is of the form:
1408: # username:domain:section:last, first:status
1409: #
1410: #
1411: if ($helper->{'VARS'}->{'student_sort'} eq 1) {
1412: @students = sort compare_names @students;
1413: }
1414: if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
1415: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
1416: $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
1417: }
1418: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1419:
1420: #loop over students
1421: my $flag_latex_header_remove = 'NO';
1422: my %moreenv;
1423: $moreenv{'instructor_comments'}='hide';
1424: $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
1425: $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1426: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1427: $moreenv{'suppress_tries'} = $parmhash{'suppress_tries'};
1428: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$moreenv{'problem_split'}='yes';}
1429: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
1430: my $student_counter=-1;
1431: foreach my $person (@students) {
1432:
1433: my $duefile="/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1434: if (-e $duefile) {
1435: my $temp_file = Apache::File->new('>>'.$duefile);
1436: print $temp_file "1969\n";
1437: }
1438: $student_counter++;
1439: my $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
1440: my ($output,$fullname, $printed)=&print_resources($r,$helper,
1441: $person,$type,
1442: \%moreenv,\@master_seq,
1443: $flag_latex_header_remove,
1444: $LaTeXwidth);
1445: $resources_printed .= ":";
1446: $print_array[$i].=$output;
1447: $student_names[$i].=$person.':'.$fullname.'_END_';
1448: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
1449: $flag_latex_header_remove = 'YES';
1450: if (&Apache::loncommon::connection_aborted($r)) { last; }
1451: }
1452: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1453: $result .= $print_array[0].' \end{document}';
1454: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon') ||
1455: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon') ) {
1456: my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
1457: my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
1458: my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
1459: my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
1460: my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
1461: my $single_code = $helper->{'VARS'}->{'SINGLE_CODE'};
1462: my $selected_code = $helper->{'VARS'}->{'CODE_SELECTED_FROM_LIST'};
1463:
1464: my $code_option=$helper->{'VARS'}->{'CODE_OPTION'};
1465: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
1466: my ($code_type,$code_length)=('letter',6);
1467: foreach my $line (<FH>) {
1468: my ($name,$type,$length) = (split(/:/,$line))[0,2,4];
1469: if ($name eq $code_option) {
1470: $code_length=$length;
1471: if ($type eq 'number') { $code_type = 'number'; }
1472: }
1473: }
1474: my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
1475: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1476: $moreenv{'instructor_comments'}='hide';
1477: my $seed=time+($$<<16)+($$);
1478: my @allcodes;
1479: if ($old_name) {
1480: my %result=&Apache::lonnet::get('CODEs',
1481: [$old_name,"type\0$old_name"],
1482: $cdom,$cnum);
1483: $code_type=$result{"type\0$old_name"};
1484: @allcodes=split(',',$result{$old_name});
1485: $num_todo=scalar(@allcodes);
1486: } elsif ($selected_code) { # Selection value is always numeric.
1487: $num_todo = 1;
1488: @allcodes = ($selected_code);
1489: } elsif ($single_code) {
1490:
1491: $num_todo = 1; # Unconditionally one code to do.
1492: # If an alpha code have to convert to numbers so it can be
1493: # converted back to letters again :-)
1494: #
1495: if ($code_type ne 'number') {
1496: $single_code = &letters_to_num($single_code);
1497: }
1498: @allcodes = ($single_code);
1499: } else {
1500: my %allcodes;
1501: srand($seed);
1502: for (my $i=0;$i<$num_todo;$i++) {
1503: $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,$code_length,
1504: $code_type);
1505: }
1506: if ($code_name) {
1507: &Apache::lonnet::put('CODEs',
1508: {
1509: $code_name =>join(',',keys(%allcodes)),
1510: "type\0$code_name" => $code_type
1511: },
1512: $cdom,$cnum);
1513: }
1514: @allcodes=keys(%allcodes);
1515: }
1516: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1517: my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
1518: my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
1519: if ($number_per_page eq '0' || $number_per_page eq 'all') {
1520: $number_per_page=$num_todo;
1521: }
1522: my $flag_latex_header_remove = 'NO';
1523: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
1524: my $count=0;
1525: foreach my $code (sort(@allcodes)) {
1526: my $file_num=int($count/$number_per_page);
1527: if ($code_type eq 'number') {
1528: $moreenv{'CODE'}=$code;
1529: } else {
1530: $moreenv{'CODE'}=&num_to_letters($code);
1531: }
1532: my ($output,$fullname, $printed)=
1533: &print_resources($r,$helper,'anonymous',$type,\%moreenv,
1534: \@master_seq,$flag_latex_header_remove,
1535: $LaTeXwidth);
1536: $resources_printed .= ":";
1537: $print_array[$file_num].=$output;
1538: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
1539: &mt('last assignment').' '.$fullname);
1540: $flag_latex_header_remove = 'YES';
1541: $count++;
1542: if (&Apache::loncommon::connection_aborted($r)) { last; }
1543: }
1544: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1545: $result .= $print_array[0].' \end{document}';
1546: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
1547: #prints selected problems from the subdirectory
1548: $selectionmade = 6;
1549: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
1550: @list_of_files=sort @list_of_files;
1551: my $flag_latex_header_remove = 'NO';
1552: my $rndseed=time;
1553: if ($helper->{'VARS'}->{'curseed'}) {
1554: $rndseed=$helper->{'VARS'}->{'curseed'};
1555: }
1556: for (my $i=0;$i<=$#list_of_files;$i++) {
1557: my $urlp = $list_of_files[$i];
1558: $urlp=~s|//|/|;
1559: if ($urlp=~/\//) {
1560: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1561: $form{'rndseed'}=$rndseed;
1562: if ($urlp =~ m|/home/([^/]+)/public_html|) {
1563: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
1564: } else {
1565: $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
1566: }
1567: $resources_printed .= $urlp.':';
1568: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1569: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1570: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1571: # Don't permanently pervert %form:
1572: my %answerform = %form;
1573: $answerform{'grade_target'}='answer';
1574: $answerform{'answer_output_mode'}='tex';
1575: $answerform{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1576: $answerform{'rndseed'}=$rndseed;
1577: $resources_printed .= $urlp.':';
1578: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1579: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1580: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1581: } else {
1582: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1583: if ($helper->{'VARS'}->{'construction'} ne '1') {
1584: $texversion.='\vskip 0 mm \noindent ';
1585: $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
1586: } else {
1587: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1588: my $URLpath=$urlp;
1589: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1590: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1591: }
1592: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1593: }
1594: }
1595: #this chunck is responsible for printing the path to problem
1596: my $newurlp=$urlp;
1597: if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
1598: $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
1599: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
1600: if ($flag_latex_header_remove ne 'NO') {
1601: $texversion = &latex_header_footer_remove($texversion);
1602: } else {
1603: $texversion =~ s/\\end{document}//;
1604: }
1605: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1606: $texversion=&IndexCreation($texversion,$urlp);
1607: }
1608: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1609: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1610:
1611: }
1612: $result .= $texversion;
1613: }
1614: $flag_latex_header_remove = 'YES';
1615: }
1616: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
1617: $result .= '\end{document}';
1618: }
1619: #-------------------------------------------------------- corrections for the different page formats
1620: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
1621: $result = &latex_corrections($number_of_columns,$result,$selectionmade,
1622: $helper->{'VARS'}->{'ANSWER_TYPE'});
1623: for (my $i=1;$i<=$#print_array;$i++) {
1624: $print_array[$i] =
1625: &latex_corrections($number_of_columns,$print_array[$i],
1626: $selectionmade,
1627: $helper->{'VARS'}->{'ANSWER_TYPE'});
1628: }
1629: #changes page's parameters for the one column output
1630: if ($numberofcolumns == 1) {
1631: $result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
1632: $result =~ s/\\textheight\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
1633: $result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1634: $result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1635: }
1636:
1637: #-- writing .tex file in prtspool
1638: my $temp_file;
1639: my $identifier = &Apache::loncommon::get_cgi_id();
1640: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout_$identifier.tex";
1641: if (!($#print_array>0)) {
1642: unless ($temp_file = Apache::File->new('>'.$filename)) {
1643: $r->log_error("Couldn't open $filename for output $!");
1644: return SERVER_ERROR;
1645: }
1646: print $temp_file $result;
1647: my $begin=index($result,'\begin{document}',0);
1648: my $inc=substr($result,0,$begin+16);
1649: } else {
1650: my $begin=index($result,'\begin{document}',0);
1651: my $inc=substr($result,0,$begin+16);
1652: for (my $i=0;$i<=$#print_array;$i++) {
1653: if ($i==0) {
1654: $print_array[$i]=$result;
1655: } else {
1656: my $anobegin=index($print_array[$i],'\setcounter{page}',0);
1657: substr($print_array[$i],0,$anobegin)='';
1658: $print_array[$i]=$inc.$print_array[$i].'\end{document}';
1659: }
1660: my $temp_file;
1661: my $newfilename=$filename;
1662: my $num=$i+1;
1663: $newfilename =~s/\.tex$//;
1664: $newfilename=sprintf("%s_%03d.tex",$newfilename, $num);
1665: unless ($temp_file = Apache::File->new('>'.$newfilename)) {
1666: $r->log_error("Couldn't open $newfilename for output $!");
1667: return SERVER_ERROR;
1668: }
1669: print $temp_file $print_array[$i];
1670: }
1671: }
1672: my $student_names='';
1673: if ($#print_array>0) {
1674: for (my $i=0;$i<=$#print_array;$i++) {
1675: $student_names.=$student_names[$i].'_ENDPERSON_';
1676: }
1677: } else {
1678: if ($#student_names>-1) {
1679: $student_names=$student_names[0].'_ENDPERSON_';
1680: } else {
1681: my $fullname = &get_name($env{'user.name'},$env{'user.domain'});
1682: $student_names=join(':',$env{'user.name'},$env{'user.domain'},
1683: $env{'request.course.sec'},$fullname).
1684: '_ENDPERSON_'.'_END_';
1685: }
1686: }
1687:
1688: my $URLback=''; #link to original document
1689: if ($helper->{'VARS'}->{'construction'} ne '1') {
1690: #prints published resource
1691: $URLback=&Apache::lonnet::escape('/adm/flip?postdata=return:');
1692: } else {
1693: #prints resource from the construction space
1694: $URLback='/'.$helper->{'VARS'}->{'filename'};
1695: if ($URLback=~/([^?]+)/) {
1696: $URLback=$1;
1697: $URLback=~s|^/~|/priv/|;
1698: }
1699: }
1700: # logic for now is too complex to trace if this has been defined
1701: # yet.
1702: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1703: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1704: &Apache::lonnet::appenv('cgi.'.$identifier.'.file' => $filename,
1705: 'cgi.'.$identifier.'.layout' => $laystyle,
1706: 'cgi.'.$identifier.'.numcol' => $numberofcolumns,
1707: 'cgi.'.$identifier.'.paper' => $papersize,
1708: 'cgi.'.$identifier.'.selection' => $selectionmade,
1709: 'cgi.'.$identifier.'.tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
1710: 'cgi.'.$identifier.'.tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
1711: 'cgi.'.$identifier.'.role' => $perm{'pav'},
1712: 'cgi.'.$identifier.'.numberoffiles' => $#print_array,
1713: 'cgi.'.$identifier.'.studentnames' => $student_names,
1714: 'cgi.'.$identifier.'.backref' => $URLback,);
1715: &Apache::lonnet::appenv("cgi.$identifier.user" => $env{'user.name'},
1716: "cgi.$identifier.domain" => $env{'user.domain'},
1717: "cgi.$identifier.courseid" => $cnum,
1718: "cgi.$identifier.coursedom" => $cdom,
1719: "cgi.$identifier.resources" => $resources_printed);
1720:
1721: $r->print(<<FINALEND);
1722: <br />
1723: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
1724: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
1725: </body>
1726: </html>
1727: FINALEND
1728: }
1729:
1730:
1731: sub get_CODE {
1732: my ($all_codes,$num,$seed,$size,$type)=@_;
1733: my $max='1'.'0'x$size;
1734: my $newcode;
1735: while(1) {
1736: $newcode=sprintf("%0".$size."d",int(rand($max)));
1737: if (!exists($$all_codes{$newcode})) {
1738: $$all_codes{$newcode}=1;
1739: if ($type eq 'number' ) {
1740: return $newcode;
1741: } else {
1742: return &num_to_letters($newcode);
1743: }
1744: }
1745: }
1746: }
1747:
1748: sub print_resources {
1749: my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
1750: $LaTeXwidth)=@_;
1751: my $current_output = '';
1752: my $printed = '';
1753: my ($username,$userdomain,$usersection) = split /:/,$person;
1754: my $fullname = &get_name($username,$userdomain);
1755: my $namepostfix;
1756: if ($person =~ 'anon') {
1757: $namepostfix="\\\\Name: ";
1758: $fullname = "CODE - ".$moreenv->{'CODE'};
1759: }
1760: my $i = 0;
1761: #goes through all resources, checks if they are available for
1762: #current student, and produces output
1763:
1764: &Apache::lonxml::clear_problem_counter();
1765: my %page_breaks = &get_page_breaks($helper);
1766: my @format_array = split(/\|/,$helper->{'VARS'}->{'FORMAT'});
1767: my $columns_in_format = $format_array[1];
1768:
1769: foreach my $curresline (@{$master_seq}) {
1770: if (defined $page_breaks{$curresline}) {
1771: if($i != 0) {
1772: $current_output.= "\\newpage\n";
1773: }
1774: }
1775: $i++;
1776: if ( !($type eq 'problems' &&
1777: ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
1778: my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
1779: if (&Apache::lonnet::allowed('bre',$res_url)) {
1780: if ($res_url!~m|^ext/|
1781: && $res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1782: $printed .= $curresline.':';
1783:
1784: &Apache::lonxml::remember_problem_counter();
1785:
1786: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1787:
1788: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1789: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1790: # Use a copy of the hash so we don't pervert it on future loop passes.
1791: my %answerenv = %{$moreenv};
1792: $answerenv{'answer_output_mode'}='tex';
1793: $answerenv{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1794:
1795: &Apache::lonxml::restore_problem_counter();
1796:
1797: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$env{'request.course.id'},%answerenv);
1798:
1799: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1800: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
1801: } else {
1802:
1803:
1804: my $header =&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1805: my $body ='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
1806: $body .=&path_to_problem($res_url,$LaTeXwidth);
1807: $body .='\vskip 1 mm '.$ansrendered;
1808: $body = &encapsulate_minipage($body);
1809: $rendered = $header.$body;
1810: }
1811: }
1812: if ($remove_latex_header eq 'YES') {
1813: $rendered = &latex_header_footer_remove($rendered);
1814: } else {
1815: $rendered =~ s/\\end{document}//;
1816: }
1817: $current_output .= $rendered;
1818: } elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1819: $printed .= $curresline.':';
1820: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1821:
1822: if ($remove_latex_header eq 'YES') {
1823: $rendered = &latex_header_footer_remove($rendered);
1824: } else {
1825: $rendered =~ s/\\end{document}//;
1826: }
1827: $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
1828:
1829: } else {
1830: my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'},$curresline);
1831: if ($remove_latex_header ne 'NO') {
1832: $rendered = &latex_header_footer_remove($rendered);
1833: } else {
1834: $rendered =~ s/\\end{document}//;
1835: }
1836: $current_output .= $rendered;
1837: }
1838: }
1839: $remove_latex_header = 'YES';
1840: }
1841: if (&Apache::loncommon::connection_aborted($r)) { last; }
1842: }
1843: my $courseidinfo = &get_course();
1844: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1845: if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
1846: my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
1847: if ($current_output=~/\\documentclass/) {
1848: if ($columns_in_format == 1) {
1849: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
1850: } else {
1851: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fancyhead[LO]{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
1852:
1853: }
1854: } else {
1855: my $blankpages = '';
1856: for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blankpages.='\clearpage\strut\clearpage';}
1857: if ($columns_in_format == 1) {
1858: $current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$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;
1859: } else {
1860: $current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$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;
1861: }
1862: }
1863: return ($current_output,$fullname, $printed);
1864:
1865: }
1866:
1867: sub handler {
1868:
1869: my $r = shift;
1870:
1871: &init_perm();
1872:
1873:
1874:
1875: my $helper = printHelper($r);
1876: if (!ref($helper)) {
1877: return $helper;
1878: }
1879:
1880:
1881: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
1882:
1883:
1884:
1885:
1886: # If a figure conversion queue file exists for this user.domain
1887: # we delete it since it can only be bad (if it were good, printout.pl
1888: # would have deleted it the last time around.
1889:
1890: my $conversion_queuefile = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1891: if(-e $conversion_queuefile) {
1892: unlink $conversion_queuefile;
1893: }
1894: &output_data($r,$helper,\%parmhash);
1895: return OK;
1896: }
1897:
1898: use Apache::lonhelper;
1899:
1900: sub addMessage {
1901: my $text = shift;
1902: my $paramHash = Apache::lonhelper::getParamHash();
1903: $paramHash->{MESSAGE_TEXT} = $text;
1904: Apache::lonhelper::message->new();
1905: }
1906:
1907:
1908:
1909: sub init_perm {
1910: undef(%perm);
1911: $perm{'pav'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1912: if (!$perm{'pav'}) {
1913: $perm{'pav'}=&Apache::lonnet::allowed('pav',
1914: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1915: }
1916: $perm{'pfo'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1917: if (!$perm{'pfo'}) {
1918: $perm{'pfo'}=&Apache::lonnet::allowed('pfo',
1919: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1920: }
1921: }
1922:
1923: sub printHelper {
1924: my $r = shift;
1925:
1926: if ($r->header_only) {
1927: if ($env{'browser.mathml'}) {
1928: &Apache::loncommon::content_type($r,'text/xml');
1929: } else {
1930: &Apache::loncommon::content_type($r,'text/html');
1931: }
1932: $r->send_http_header;
1933: return OK;
1934: }
1935:
1936: # Send header, nocache
1937: if ($env{'browser.mathml'}) {
1938: &Apache::loncommon::content_type($r,'text/xml');
1939: } else {
1940: &Apache::loncommon::content_type($r,'text/html');
1941: }
1942: &Apache::loncommon::no_cache($r);
1943: $r->send_http_header;
1944: $r->rflush();
1945:
1946: # Unfortunately, this helper is so complicated we have to
1947: # write it by hand
1948:
1949: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
1950:
1951: my $helper = Apache::lonhelper::helper->new("Printing Helper");
1952: $helper->declareVar('symb');
1953: $helper->declareVar('postdata');
1954: $helper->declareVar('curseed');
1955: $helper->declareVar('probstatus');
1956: $helper->declareVar('filename');
1957: $helper->declareVar('construction');
1958: $helper->declareVar('assignment');
1959: $helper->declareVar('style_file');
1960: $helper->declareVar('student_sort');
1961: $helper->declareVar('FINISHPAGE');
1962: $helper->declareVar('PRINT_TYPE');
1963: $helper->declareVar("showallfoils");
1964:
1965: # The page breaks can get loaded initially from the course environment:
1966: # But we only do this in the initial state so that they are allowed to change.
1967: #
1968:
1969: # $helper->{VARS}->{FINISHPAGE} = '';
1970:
1971: &Apache::loncommon::restore_course_settings('print',
1972: {'pagebreaks' => 'scalar',
1973: 'lastprinttype' => 'scalar'});
1974:
1975:
1976: if($helper->{VARS}->{PRINT_TYPE} eq $env{'form.lastprinttype'}) {
1977: if (!defined ($env{"form.CURRENT_STATE"})) {
1978:
1979: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1980: } else {
1981: my $state = $env{"form.CURRENT_STATE"};
1982: if ($state eq "START") {
1983: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1984: }
1985: }
1986:
1987: }
1988:
1989:
1990: # This will persistently load in the data we want from the
1991: # very first screen.
1992: # Detect whether we're coming from construction space
1993: if ($env{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
1994: $helper->{VARS}->{'filename'} = "~$1/$2";
1995: $helper->{VARS}->{'construction'} = 1;
1996: } else {
1997: if ($env{'form.postdata'}) {
1998: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($env{'form.postdata'});
1999: }
2000: if ($env{'form.symb'}) {
2001: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2002: }
2003: if ($env{'form.url'}) {
2004: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2005: }
2006:
2007: }
2008:
2009: if ($env{'form.symb'}) {
2010: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2011: }
2012: if ($env{'form.url'}) {
2013: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2014:
2015: }
2016: $helper->{VARS}->{'symb'}=
2017: &Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
2018: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
2019: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
2020:
2021:
2022: # Extract map
2023: my $symb = $helper->{VARS}->{'symb'};
2024: my ($map, $id, $url);
2025: my $subdir;
2026:
2027: # Get the resource name from construction space
2028: if ($helper->{VARS}->{'construction'}) {
2029: $resourceTitle = substr($helper->{VARS}->{'filename'},
2030: rindex($helper->{VARS}->{'filename'}, '/')+1);
2031: $subdir = substr($helper->{VARS}->{'filename'},
2032: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
2033: } else {
2034: ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
2035: $helper->{VARS}->{'postdata'} =
2036: &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
2037:
2038: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
2039: my $postdata = $helper->{VARS}->{'postdata'};
2040: $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
2041: }
2042: $subdir = &Apache::lonnet::filelocation("", $url);
2043: }
2044: if (!$helper->{VARS}->{'curseed'} && $env{'form.curseed'}) {
2045: $helper->{VARS}->{'curseed'}=$env{'form.curseed'};
2046: }
2047: if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
2048: $helper->{VARS}->{'probstatus'}=$env{'form.problemtype'};
2049: }
2050:
2051: my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
2052:
2053: Apache::lonhelper::registerHelperTags();
2054:
2055: # "Delete everything after the last slash."
2056: $subdir =~ s|/[^/]+$||;
2057: if (not $helper->{VARS}->{'construction'}) {
2058: $subdir=$Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$subdir;
2059: }
2060: # "Remove all duplicate slashes."
2061: $subdir =~ s|/+|/|g;
2062:
2063: # What can be printed is a very dynamic decision based on
2064: # lots of factors. So we need to dynamically build this list.
2065: # To prevent security leaks, states are only added to the wizard
2066: # if they can be reached, which ensures manipulating the form input
2067: # won't allow anyone to reach states they shouldn't have permission
2068: # to reach.
2069:
2070: # printChoices is tracking the kind of printing the user can
2071: # do, and will be used in a choices construction later.
2072: # In the meantime we will be adding states and elements to
2073: # the helper by hand.
2074: my $printChoices = [];
2075: my $paramHash;
2076:
2077: if ($resourceTitle) {
2078: push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('what you just saw on the screen').")", 'current_document', 'PAGESIZE'];
2079: }
2080:
2081: # Useful filter strings
2082: my $isProblem = '($res->is_problem()||$res->contains_problem) ';
2083: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
2084: my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
2085: my $isNotMap = '!$res->is_sequence()';
2086: $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
2087: my $isMap = '$res->is_map()';
2088: my $symbFilter = '$res->shown_symb()';
2089: my $urlValue = '$res->link()';
2090:
2091: $helper->declareVar('SEQUENCE');
2092:
2093:
2094:
2095: # If we're in a sequence...
2096: if (($helper->{'VARS'}->{'construction'} ne '1') &&
2097:
2098: $helper->{VARS}->{'postdata'} &&
2099: $helper->{VARS}->{'assignment'}) {
2100: # Allow problems from sequence
2101: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
2102: # Allow all resources from sequence
2103: push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
2104:
2105: my $helperFragment = <<HELPERFRAGMENT;
2106: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
2107: <message>(mark them then click "next" button) <br /></message>
2108: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2109: closeallpages="1">
2110: <nextstate>PAGESIZE</nextstate>
2111: <filterfunc>return $isProblem;</filterfunc>
2112: <mapurl>$map</mapurl>
2113: <valuefunc>return $symbFilter;</valuefunc>
2114: <option text='Newpage' variable='FINISHPAGE' />
2115: </resource>
2116: </state>
2117:
2118: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
2119: <message>(mark them then click "next" button) <br /></message>
2120: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2121: closeallpages="1">
2122: <nextstate>PAGESIZE</nextstate>
2123: <filterfunc>return $isNotMap;</filterfunc>
2124: <mapurl>$map</mapurl>
2125: <valuefunc>return $symbFilter;</valuefunc>
2126: <option text='Newpage' variable='FINISHPAGE' />
2127: </resource>
2128: </state>
2129: HELPERFRAGMENT
2130:
2131: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
2132: }
2133:
2134: # If the user has pfo (print for otheres) allow them to print all
2135: # problems and resources in the entier course, optionally for selected students
2136: if ($perm{'pfo'} &&
2137: ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) {
2138:
2139: push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
2140: push @{$printChoices}, ['<b>Resources</b> from <b>entire course</b>', 'all_resources', 'ALL_RESOURCES'];
2141: &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
2142: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
2143: <message>(mark them then click "next" button) <br /></message>
2144: <resource variable="RESOURCES" toponly='0' multichoice="1"
2145: suppressEmptySequences='0' addstatus="1" closeallpages="1">
2146: <nextstate>PAGESIZE</nextstate>
2147: <filterfunc>return $isProblemOrMap;</filterfunc>
2148: <choicefunc>return $isNotMap;</choicefunc>
2149: <valuefunc>return $symbFilter;</valuefunc>
2150: <option text='Newpage' variable='FINISHPAGE' />
2151: </resource>
2152: </state>
2153: <state name="ALL_RESOURCES" title="Select Resource(s) to print">
2154: <message>(Mark them then click "next" button) <br /> </message>
2155: <resource variable="RESOURCES" toponly='0' multichoice='1'
2156: suppressEmptySequences='0' addstatus='1' closeallpages='1'>
2157: <nextstate>PAGESIZE</nextstate>
2158: <filterfunc>return $isNotMap; </filterfunc>
2159: <valuefunc>return $symbFilter;</valuefunc>
2160: <option text='NewPage' variable='FINISHPAGE' />
2161: </resource>
2162: </state>
2163: ALL_PROBLEMS
2164:
2165: if ($helper->{VARS}->{'assignment'}) {
2166: 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'];
2167: 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'];
2168: }
2169:
2170: # resource_selector will hold a few states that:
2171: # - Allow resources to be selected for printing.
2172: # - Determine pagination between assignments.
2173: # - Determine how many assignments should be bundled into a single PDF.
2174: # TODO:
2175: # Probably good to do things like separate this up into several vars, each
2176: # with one state, and use REGEXPs at inclusion time to set state names
2177: # and next states for better mix and match capability
2178: #
2179: my $resource_selector=<<RESOURCE_SELECTOR;
2180: <state name="SELECT_PROBLEMS" title="Select resources to print">
2181: <nextstate>PRINT_FORMATTING</nextstate>
2182: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2183: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2184: closeallpages="1">
2185: <filterfunc>return $isProblem;</filterfunc>
2186: <mapurl>$map</mapurl>
2187: <valuefunc>return $symbFilter;</valuefunc>
2188: <option text='New Page' variable='FINISHPAGE' />
2189: </resource>
2190: </state>
2191: <state name="PRINT_FORMATTING" title="How should results be printed?">
2192: <nextstate>NUMBER_PER_PDF</nextstate>
2193: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2194: <choices variable="EMPTY_PAGES">
2195: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2196: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2197: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2198: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2199: </choices>
2200: </state>
2201: <state name="NUMBER_PER_PDF" title="Number printed at once">
2202: <nextstate>PAGESIZE</nextstate>
2203: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2204: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2205: </state>
2206: RESOURCE_SELECTOR
2207:
2208: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
2209: <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
2210: <message><b>Select sort order</b> </message>
2211: <choices variable='student_sort'>
2212: <choice computer='0'>Sort by section then student</choice>
2213: <choice computer='1'>Sort by students across sections.</choice>
2214: </choices>
2215: <student multichoice='1' variable="STUDENTS" nextstate="SELECT_PROBLEMS" coursepersonnel="1"/>
2216: </state>
2217: $resource_selector
2218: CHOOSE_STUDENTS
2219:
2220: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2221: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2222: my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
2223: my $namechoice='<choice></choice>';
2224: foreach my $name (sort {uc($a) cmp uc($b)} @names) {
2225: if ($name =~ /^error: 2 /) { next; }
2226: if ($name =~ /^type\0/) { next; }
2227: $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
2228: }
2229:
2230:
2231: my %code_values;
2232: my %codes_to_print;
2233: foreach my $key (@names) {
2234: %code_values = &Apache::grades::get_codes($key, $cdom, $cnum);
2235: foreach my $key (keys(%code_values)) {
2236: $codes_to_print{$key} = 1;
2237: }
2238: }
2239:
2240: my $code_selection = "<choice></choice>\n";
2241: foreach my $code (sort {uc($a) cmp uc($b)} (keys(%codes_to_print))) {
2242: my $choice = $code;
2243: if ($code =~ /^[A-Z]+$/) { # Alpha code
2244: $choice = &letters_to_num($code);
2245: }
2246: $code_selection .= ' <choice computer="'.$choice.'">'.$code."</choice>\n";
2247: }
2248: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
2249: my $codechoice='';
2250: foreach my $line (<FH>) {
2251: my ($name,$description,$code_type,$code_length)=
2252: (split(/:/,$line))[0,1,2,4];
2253: if ($code_length > 0 &&
2254: $code_type =~/^(letter|number|-1)/) {
2255: $codechoice.='<choice computer="'.$name.'">'.$description.'</choice>';
2256: }
2257: }
2258: if ($codechoice eq '') {
2259: $codechoice='<choice computer="default">Default</choice>';
2260: }
2261: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
2262: <state name="CHOOSE_ANON1" title="Select Students and Resources">
2263: <nextstate>SELECT_PROBLEMS</nextstate>
2264: <message><table><tr><td><b>Number of anonymous assignments to print:</b></td><td></message>
2265: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2266: <validator>
2267: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2268: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2269: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2270: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2271: return "You need to specify the number of assignments to print";
2272: }
2273: return undef;
2274: </validator>
2275: </string>
2276: <message></td></tr><tr><td></message>
2277: <message><b>Names to store the CODEs under for later:</b></message>
2278: <message></td><td></message>
2279: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2280: <message></td></tr><tr><td></message>
2281: <message><b>Bubble sheet type:</b></message>
2282: <message></td><td></message>
2283: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2284: $codechoice
2285: </dropdown>
2286: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2287: <message></td></tr><tr><td></message>
2288: <message><b>Enter a CODE to print:</b></td><td></message>
2289: <string variable="SINGLE_CODE" size="10">
2290: <validator>
2291: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2292: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2293: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2294: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2295: \$helper->{'VARS'}{'CODE_OPTION'});
2296: } else {
2297: return undef; # Other forces control us.
2298: }
2299: </validator>
2300: </string>
2301: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2302: <message><b>Reprint a set of saved CODEs:</b></message>
2303: <message></td><td></message>
2304: <dropdown variable="REUSE_OLD_CODES">
2305: $namechoice
2306: </dropdown>
2307: <message></td></tr></table></message>
2308: <message><hr width='33%' /></message>
2309: </state>
2310: $resource_selector
2311: CHOOSE_ANON1
2312:
2313:
2314: if ($helper->{VARS}->{'assignment'}) {
2315: 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'];
2316: 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'];
2317: }
2318:
2319:
2320: $resource_selector=<<RESOURCE_SELECTOR;
2321: <state name="SELECT_RESOURCES" title="Select Resources">
2322: <nextstate>PRINT_FORMATTING</nextstate>
2323: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2324: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2325: closeallpages="1">
2326: <filterfunc>return $isNotMap;</filterfunc>
2327: <mapurl>$map</mapurl>
2328: <valuefunc>return $symbFilter;</valuefunc>
2329: <option text='Newpage' variable='FINISHPAGE' />
2330: </resource>
2331: </state>
2332: <state name="PRINT_FORMATTING" title="Format of the print job">
2333: <nextstate>NUMBER_PER_PDF</nextstate>
2334: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2335: <choices variable="EMPTY_PAGES">
2336: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2337: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2338: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2339: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2340: </choices>
2341: </state>
2342: <state name="NUMBER_PER_PDF title="Number assingnments per pdf">
2343: <nextstate>PAGESIZE</nextstate>
2344: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2345: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2346: </state>
2347: RESOURCE_SELECTOR
2348:
2349: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
2350: <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
2351: <choices variable='student_sort'>
2352: <choice computer='0'>Sort by section then student</choice>
2353: <choice computer='1'>Sort by students across sections.</choice>
2354: </choices>
2355: <student multichoice='1' variable="STUDENTS" nextstate="SELECT_RESOURCES" coursepersonnel="1" />
2356:
2357: </state>
2358: $resource_selector
2359: CHOOSE_STUDENTS1
2360:
2361: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
2362: <state name="CHOOSE_ANON2" title="Select Students and Resources">
2363: <nextstate>SELECT_RESOURCES</nextstate>
2364: <message><table><tr><td><b>Number of anonymous assignments to print:</b></td><td></message>
2365: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2366: <validator>
2367: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2368: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2369: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2370: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2371: return "You need to specify the number of assignments to print";
2372: }
2373: return undef;
2374: </validator>
2375: </string>
2376: <message></td></tr><tr><td></message>
2377: <message><b>Names to store the CODEs under for later:</b></message>
2378: <message></td><td></message>
2379: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2380: <message></td></tr><tr><td></message>
2381: <message><b>Bubble sheet type:</b></message>
2382: <message></td><td></message>
2383: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2384: $codechoice
2385: </dropdown>
2386: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2387: <message></td></tr><tr><td></message>
2388: <message><b>Enter a CODE to print:</b></td><td></message>
2389: <string variable="SINGLE_CODE" size="10">
2390: <validator>
2391: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2392: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2393: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2394: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2395: \$helper->{'VARS'}{'CODE_OPTION'});
2396: } else {
2397: return undef; # Other forces control us.
2398: }
2399: </validator>
2400: </string>
2401: <message></td></tr><tr><td colspan="2"><hr width='33%' /></td></tr><tr><td></message>
2402: <message><b>Reprint a set of saved CODEs:</b></message>
2403: <message></td><td></message>
2404: <dropdown variable="REUSE_OLD_CODES">
2405: $namechoice
2406: </dropdown>
2407: <message></td></tr></table></message>
2408: <message><hr width='33%' /></message>
2409: </state>
2410: $resource_selector
2411: CHOOSE_ANON2
2412: }
2413:
2414: # FIXME: That RE should come from a library somewhere.
2415: if ((((&Apache::lonnet::allowed('bre',$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 $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/') {
2416: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from current subdirectory')." <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
2417:
2418: my $f = '$filename';
2419: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
2420: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
2421: <message>(mark them then click "next" button) <br /></message>
2422: <files variable="FILES" multichoice='1'>
2423: <nextstate>PAGESIZE</nextstate>
2424: <filechoice>return '$subdir';</filechoice>
2425: CHOOSE_FROM_SUBDIR
2426:
2427: # this is broken up because I really want interpolation above,
2428: # and I really DON'T want it below
2429: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
2430: <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
2431: $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
2432: </filefilter>
2433: </files>
2434: </state>
2435: CHOOSE_FROM_SUBDIR
2436: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2437: }
2438:
2439: # Allow the user to select any sequence in the course, feed it to
2440: # another resource selector for that sequence
2441: if (!$helper->{VARS}->{'construction'}) {
2442: push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
2443: 'select_sequences', 'CHOOSE_SEQUENCE'];
2444: my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
2445: #Escape apostrophes and backslashes for Perl
2446: $escapedSequenceName =~ s/\\/\\\\/g;
2447: $escapedSequenceName =~ s/'/\\'/g;
2448: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
2449: <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
2450: <message>Select the sequence to print resources from:</message>
2451: <resource variable="SEQUENCE">
2452: <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
2453: <filterfunc>return \$res->is_sequence;</filterfunc>
2454: <valuefunc>return $urlValue;</valuefunc>
2455: <choicefunc>return \$res->hasResource(\$res,sub { return !\$_[0]->is_sequence() },0,0);
2456: </choicefunc>
2457: </resource>
2458: </state>
2459: <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
2460: <message>(mark desired resources then click "next" button) <br /></message>
2461: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2462: closeallpages="1">
2463: <nextstate>PAGESIZE</nextstate>
2464: <filterfunc>return $isProblem</filterfunc>
2465: <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
2466: <valuefunc>return $symbFilter;</valuefunc>
2467: <option text='Newpage' variable='FINISHPAGE' />
2468: </resource>
2469: </state>
2470: CHOOSE_FROM_ANY_SEQUENCE
2471: }
2472:
2473: # Generate the first state, to select which resources get printed.
2474: Apache::lonhelper::state->new("START", "Select Printing Options:");
2475: $paramHash = Apache::lonhelper::getParamHash();
2476: $paramHash->{MESSAGE_TEXT} = "";
2477: Apache::lonhelper::message->new();
2478: $paramHash = Apache::lonhelper::getParamHash();
2479: $paramHash->{'variable'} = 'PRINT_TYPE';
2480: $paramHash->{CHOICES} = $printChoices;
2481: Apache::lonhelper::choices->new();
2482:
2483: my $startedTable = 0; # have we started an HTML table yet? (need
2484: # to close it later)
2485:
2486: if (($perm{'pav'} and &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) or
2487: ($helper->{VARS}->{'construction'} eq '1')) {
2488: addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
2489: $paramHash = Apache::lonhelper::getParamHash();
2490: $paramHash->{'variable'} = 'ANSWER_TYPE';
2491: $helper->declareVar('ANSWER_TYPE');
2492: $paramHash->{CHOICES} = [
2493: ['Without Answers', 'yes'],
2494: ['With Answers', 'no'],
2495: ['Only Answers', 'only']
2496: ];
2497: Apache::lonhelper::dropdown->new();
2498: addMessage("</td></tr>");
2499: $startedTable = 1;
2500: }
2501:
2502: if ($perm{'pav'}) {
2503: if (!$startedTable) {
2504: addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
2505: $startedTable = 1;
2506: } else {
2507: addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
2508: }
2509: $paramHash = Apache::lonhelper::getParamHash();
2510: $paramHash->{'variable'} = 'LATEX_TYPE';
2511: $helper->declareVar('LATEX_TYPE');
2512: if ($helper->{VARS}->{'construction'} eq '1') {
2513: $paramHash->{CHOICES} = [
2514: ['standard LaTeX mode', 'standard'],
2515: ['LaTeX batchmode', 'batchmode'], ];
2516: } else {
2517: $paramHash->{CHOICES} = [
2518: ['LaTeX batchmode', 'batchmode'],
2519: ['standard LaTeX mode', 'standard'] ];
2520: }
2521: Apache::lonhelper::dropdown->new();
2522:
2523: addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
2524: $paramHash = Apache::lonhelper::getParamHash();
2525: $paramHash->{'variable'} = 'TABLE_CONTENTS';
2526: $helper->declareVar('TABLE_CONTENTS');
2527: $paramHash->{CHOICES} = [
2528: ['No', 'no'],
2529: ['Yes', 'yes'] ];
2530: Apache::lonhelper::dropdown->new();
2531: addMessage("</td></tr>");
2532:
2533: if (not $helper->{VARS}->{'construction'}) {
2534: addMessage("<tr><td align='right'>Print Index: </td><td>");
2535: $paramHash = Apache::lonhelper::getParamHash();
2536: $paramHash->{'variable'} = 'TABLE_INDEX';
2537: $helper->declareVar('TABLE_INDEX');
2538: $paramHash->{CHOICES} = [
2539: ['No', 'no'],
2540: ['Yes', 'yes'] ];
2541: Apache::lonhelper::dropdown->new();
2542: addMessage("</td></tr>");
2543: addMessage("<tr><td align='right'>Print Discussions: </td><td>");
2544: $paramHash = Apache::lonhelper::getParamHash();
2545: $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';
2546: $helper->declareVar('PRINT_DISCUSSIONS');
2547: $paramHash->{CHOICES} = [
2548: ['No', 'no'],
2549: ['Yes', 'yes'] ];
2550: Apache::lonhelper::dropdown->new();
2551: addMessage("</td></tr>");
2552:
2553: addMessage("<tr><td align = 'right'> </td><td>");
2554: $paramHash = Apache::lonhelper::getParamHash();
2555: $paramHash->{'multichoice'} = "true";
2556: $paramHash->{'allowempty'} = "true";
2557: $paramHash->{'variable'} = "showallfoils";
2558: $paramHash->{'CHOICES'} = [ ["Show all foils", "1"] ];
2559: Apache::lonhelper::choices->new();
2560: addMessage("</td></tr>");
2561: }
2562:
2563: if ($helper->{'VARS'}->{'construction'}) {
2564: my $stylevalue=$env{'construct.style'};
2565: my $xmlfrag .= <<"RNDSEED";
2566: <message><tr><td align='right'>Use random seed: </td><td></message>
2567: <string variable="curseed" size="15" maxlength="15">
2568: <defaultvalue>
2569: return $helper->{VARS}->{'curseed'};
2570: </defaultvalue>
2571: </string>
2572: <message></td></tr><tr><td align="right">Use style file:</td><td></message>
2573: <message><input type="text" size="40" name="style_file_value" value="$stylevalue" /> <a href="javascript:openbrowser('helpform','style_file_value','sty')">Select style file</a> </td><tr><td></message>
2574: <choices allowempty="1" multichoice="true" variable="showallfoils">
2575: <choice computer="1">Show all foils?</choice>
2576: </choices>
2577: <message></td></tr></message>
2578: RNDSEED
2579: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2580: $helper->{'VARS'}->{'style_file'}=$env{'form.style_file_value'};
2581:
2582: }
2583: }
2584:
2585:
2586:
2587:
2588: if ($startedTable) {
2589: addMessage("</table>");
2590: }
2591:
2592: Apache::lonprintout::page_format_state->new("FORMAT");
2593:
2594: # Generate the PAGESIZE state which will offer the user the margin
2595: # choices if they select one column
2596: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
2597: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
2598:
2599:
2600: $helper->process();
2601:
2602:
2603: # MANUAL BAILOUT CONDITION:
2604: # If we're in the "final" state, bailout and return to handler
2605: if ($helper->{STATE} eq 'FINAL') {
2606: return $helper;
2607: }
2608:
2609: $r->print($helper->display());
2610: if ($helper->{STATE} eq 'START') {
2611: &recently_generated($r);
2612: }
2613: &Apache::lonhelper::unregisterHelperTags();
2614:
2615: return OK;
2616: }
2617:
2618:
2619: 1;
2620:
2621: package Apache::lonprintout::page_format_state;
2622:
2623: =pod
2624:
2625: =head1 Helper element: page_format_state
2626:
2627: See lonhelper.pm documentation for discussion of the helper framework.
2628:
2629: Apache::lonprintout::page_format_state is an element that gives the
2630: user an opportunity to select the page layout they wish to print
2631: with: Number of columns, portrait/landscape, and paper size. If you
2632: want to change the paper size choices, change the @paperSize array
2633: contents in this package.
2634:
2635: page_format_state is always directly invoked in lonprintout.pm, so there
2636: is no tag interface. You actually pass parameters to the constructor.
2637:
2638: =over 4
2639:
2640: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2641:
2642: =back
2643:
2644: =cut
2645:
2646: use Apache::lonhelper;
2647:
2648: no strict;
2649: @ISA = ("Apache::lonhelper::element");
2650: use strict;
2651: use Apache::lonlocal;
2652: use Apache::lonnet;
2653:
2654: my $maxColumns = 2;
2655: # it'd be nice if these all worked
2656: #my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2657: # "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
2658: # "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]",
2659: # "a5 [148x210 mm]", "a6 [105x148 mm]" );
2660: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2661: "a4 [210x297 mm]");
2662:
2663: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
2664: # Paper type
2665:
2666: sub new {
2667: my $self = Apache::lonhelper::element->new();
2668:
2669: shift;
2670:
2671: $self->{'variable'} = shift;
2672: my $helper = Apache::lonhelper::getHelper();
2673: $helper->declareVar($self->{'variable'});
2674: bless($self);
2675: return $self;
2676: }
2677:
2678: sub render {
2679: my $self = shift;
2680: my $helper = Apache::lonhelper::getHelper();
2681: my $result = '';
2682: my $var = $self->{'variable'};
2683: my $PageLayout=&mt('Page layout');
2684: my $NumberOfColumns=&mt('Number of columns');
2685: my $PaperType=&mt('Paper type');
2686: $result .= <<STATEHTML;
2687:
2688: <hr width="33%" />
2689: <table cellpadding="3">
2690: <tr>
2691: <td align="center"><b>$PageLayout</b></td>
2692: <td align="center"><b>$NumberOfColumns</b></td>
2693: <td align="center"><b>$PaperType</b></td>
2694: </tr>
2695: <tr>
2696: <td>
2697: <label><input type="radio" name="${var}.layout" value="L" /> Landscape </label><br />
2698: <label><input type="radio" name="${var}.layout" value="P" checked='1' /> Portrait </label>
2699: </td>
2700: <td align="center">
2701: <select name="${var}.cols">
2702: STATEHTML
2703:
2704: my $i;
2705: for ($i = 1; $i <= $maxColumns; $i++) {
2706: if ($i == 2) {
2707: $result .= "<option value='$i' selected>$i</option>\n";
2708: } else {
2709: $result .= "<option value='$i'>$i</option>\n";
2710: }
2711: }
2712:
2713: $result .= "</select></td><td>\n";
2714: $result .= "<select name='${var}.paper'>\n";
2715:
2716: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
2717: my $DefaultPaperSize=lc($parmhash{'default_paper_size'});
2718: $DefaultPaperSize=~s/\s//g;
2719: if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
2720: $i = 0;
2721: foreach (@paperSize) {
2722: $_=~/(\w+)/;
2723: my $papersize=$1;
2724: if ($paperSize[$i]=~/$DefaultPaperSize/) {
2725: $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
2726: } else {
2727: $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
2728: }
2729: $i++;
2730: }
2731: $result .= "</select></td></tr></table>";
2732: return $result;
2733: }
2734:
2735: sub postprocess {
2736: my $self = shift;
2737:
2738: my $var = $self->{'variable'};
2739: my $helper = Apache::lonhelper->getHelper();
2740: $helper->{VARS}->{$var} =
2741: $env{"form.$var.layout"} . '|' . $env{"form.$var.cols"} . '|' .
2742: $env{"form.$var.paper"};
2743: return 1;
2744: }
2745:
2746: 1;
2747:
2748: package Apache::lonprintout::page_size_state;
2749:
2750: =pod
2751:
2752: =head1 Helper element: page_size_state
2753:
2754: See lonhelper.pm documentation for discussion of the helper framework.
2755:
2756: Apache::lonprintout::page_size_state is an element that gives the
2757: user the opportunity to further refine the page settings if they
2758: select a single-column page.
2759:
2760: page_size_state is always directly invoked in lonprintout.pm, so there
2761: is no tag interface. You actually pass parameters to the constructor.
2762:
2763: =over 4
2764:
2765: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2766:
2767: =back
2768:
2769: =cut
2770:
2771: use Apache::lonhelper;
2772: use Apache::lonnet;
2773: no strict;
2774: @ISA = ("Apache::lonhelper::element");
2775: use strict;
2776:
2777:
2778:
2779: sub new {
2780: my $self = Apache::lonhelper::element->new();
2781:
2782: shift; # disturbs me (probably prevents subclassing) but works (drops
2783: # package descriptor)... - Jeremy
2784:
2785: $self->{'variable'} = shift;
2786: my $helper = Apache::lonhelper::getHelper();
2787: $helper->declareVar($self->{'variable'});
2788:
2789: # The variable name of the format element, so we can look into
2790: # $helper->{VARS} to figure out whether the columns are one or two
2791: $self->{'formatvar'} = shift;
2792:
2793: # The state to transition to after selection, or after discovering
2794: # the cols are not set to 1
2795: $self->{NEXTSTATE} = shift;
2796: bless($self);
2797: return $self;
2798: }
2799:
2800: sub render {
2801: my $self = shift;
2802: my $helper = Apache::lonhelper::getHelper();
2803: my $result = '';
2804: my $var = $self->{'variable'};
2805:
2806: if (defined $self->{ERROR_MSG}) {
2807: $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
2808: }
2809:
2810: $result .= <<ELEMENTHTML;
2811:
2812: <p>How should the column be formatted?</p>
2813:
2814: <table cellpadding='3'>
2815: <tr>
2816: <td align='right'><b>Width</b>:</td>
2817: <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
2818: <td align='left'>
2819: <select name='$var.widthunit'>
2820: <option>cm</option><option>in</option>
2821: </select>
2822: </td>
2823: </tr>
2824: <tr>
2825: <td align='right'><b>Height</b>:</td>
2826: <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
2827: <td align='left'>
2828: <select name='$var.heightunit'>
2829: <option>cm</option><option>in</option>
2830: </select>
2831: </td>
2832: </tr>
2833: <tr>
2834: <td align='right'><b>Left margin</b>:</td>
2835: <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
2836: <td align='left'>
2837: <select name='$var.lmarginunit'>
2838: <option>cm</option><option>in</option>
2839: </select>
2840: </td>
2841: </tr>
2842: </table>
2843:
2844: <p>Hint: Some instructors like to leave scratch space for the student by
2845: making the width much smaller than the width of the page.</p>
2846:
2847: ELEMENTHTML
2848:
2849: return $result;
2850: }
2851:
2852: # If the user didn't select 1 column, skip this state.
2853: sub preprocess {
2854: my $self = shift;
2855: my $helper = Apache::lonhelper::getHelper();
2856:
2857: my $format = $helper->{VARS}->{$self->{'formatvar'}};
2858: if (substr($format, 2, 1) ne '1') {
2859: $helper->changeState($self->{NEXTSTATE});
2860: }
2861:
2862: return 1;
2863: }
2864:
2865: sub postprocess {
2866: my $self = shift;
2867:
2868: my $var = $self->{'variable'};
2869: my $helper = Apache::lonhelper->getHelper();
2870: my $width = $helper->{VARS}->{$var .'.width'} = $env{"form.${var}.width"};
2871: my $height = $helper->{VARS}->{$var .'.height'} = $env{"form.${var}.height"};
2872: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $env{"form.${var}.lmargin"};
2873: $helper->{VARS}->{$var .'.widthunit'} = $env{"form.${var}.widthunit"};
2874: $helper->{VARS}->{$var .'.heightunit'} = $env{"form.${var}.heightunit"};
2875: $helper->{VARS}->{$var .'.lmarginunit'} = $env{"form.${var}.lmarginunit"};
2876:
2877: my $error = '';
2878:
2879: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
2880: # by an optional period, followed by digits, ending the string
2881:
2882: if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2883: $error .= "Invalid width; please type only a number.<br />\n";
2884: }
2885: if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2886: $error .= "Invalid height; please type only a number.<br />\n";
2887: }
2888: if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2889: $error .= "Invalid left margin; please type only a number.<br />\n";
2890: }
2891:
2892: if (!$error) {
2893: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
2894: return 1;
2895: } else {
2896: $self->{ERROR_MSG} = $error;
2897: return 0;
2898: }
2899: }
2900:
2901:
2902:
2903: __END__
2904:
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