1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.410 2005/12/19 23:27:28 foxr Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #
29: package Apache::lonprintout;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use Apache::lonxml;
34: use Apache::lonnet;
35: use Apache::loncommon;
36: use Apache::inputtags;
37: use Apache::grades;
38: use Apache::edit;
39: use Apache::File();
40: use Apache::lonnavmaps;
41: use Apache::lonratedt;
42: use POSIX qw(strftime);
43: use Apache::lonlocal;
44:
45: my %perm;
46:
47: #
48: # Convert a numeric code to letters
49: #
50: sub num_to_letters {
51: my ($num) = @_;
52: my @nums= split('',$num);
53: my @num_to_let=('A'..'Z');
54: my $word;
55: foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
56: return $word;
57: }
58: # Convert a letter code to numeric.
59: #
60: sub letters_to_num {
61: my ($letters) = @_;
62: my @letters = split('', uc($letters));
63: my %substitution;
64: my $digit = 0;
65: foreach my $letter ('A'..'J') {
66: $substitution{$letter} = $digit;
67: $digit++;
68: }
69: # The substitution is done as below to preserve leading
70: # zeroes which are needed to keep the code size exact
71: #
72: my $result ="";
73: foreach my $letter (@letters) {
74: $result.=$substitution{$letter};
75: }
76: return $result;
77: }
78:
79: # Determine if a code is a valid numeric code. Valid
80: # numeric codes must be comprised entirely of digits and
81: # have a correct number of digits.
82: #
83: # Parameters:
84: # value - proposed code value.
85: # num_digits - Number of digits required.
86: #
87: sub is_valid_numeric_code {
88: my ($value, $num_digits) = @_;
89: # Remove leading/trailing whitespace;
90: $value =~ s/^\s*//g;
91: $value =~ s/\s*$//g;
92:
93: # All digits?
94: if ($value !~ /^[0-9]+$/) {
95: return "Numeric code $value has invalid characters - must only be digits";
96: }
97: if (length($value) != $num_digits) {
98: return "Numeric code $value incorrect number of digits (correct = $num_digits)";
99: }
100: return undef;
101: }
102: # Determines if a code is a valid alhpa code. Alpha codes
103: # are ciphers that map [A-J,a-j] -> 0..9 0..9.
104: # They also have a correct digit count.
105: # Parameters:
106: # value - Proposed code value.
107: # num_letters - correct number of letters.
108: # Note:
109: # leading and trailing whitespace are ignored.
110: #
111: sub is_valid_alpha_code {
112: my ($value, $num_letters) = @_;
113:
114: # strip leading and trailing spaces.
115:
116: $value =~ s/^\s*//g;
117: $value =~ s/\s*$//g;
118:
119: # All alphas in the right range?
120: if ($value !~ /^[A-J,a-j]+$/) {
121: return "Invalid letter code $value must only contain A-J";
122: }
123: if (length($value) != $num_letters) {
124: return "Letter code $value has incorrect number of letters (correct = $num_letters)";
125: }
126: return undef;
127: }
128:
129: # Determine if a code entered by the user in a helper is valid.
130: # valid depends on the code type and the type of code selected.
131: # The type of code selected can either be numeric or
132: # Alphabetic. If alphabetic, the code, in fact is a simple
133: # substitution cipher for the actual numeric code: 0->A, 1->B ...
134: # We'll be nice and be case insensitive for alpha codes.
135: # Parameters:
136: # code_value - the value of the code the user typed in.
137: # code_option - The code type selected from the set in the scantron format
138: # table.
139: # Returns:
140: # undef - The code is valid.
141: # other - An error message indicating what's wrong.
142: #
143: sub is_code_valid {
144: my ($code_value, $code_option) = @_;
145: my ($code_type, $code_length) = ('letter', 6); # defaults.
146: open(FG, $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
147: foreach my $line (<FG>) {
148: my ($name, $type, $length) = (split(/:/, $line))[0,2,4];
149: if($name eq $code_option) {
150: $code_length = $length;
151: if($type eq 'number') {
152: $code_type = 'number';
153: }
154: }
155: }
156: my $valid;
157: if ($code_type eq 'number') {
158: return &is_valid_numeric_code($code_value, $code_length);
159: } else {
160: return &is_valid_alpha_code($code_value, $code_length);
161: }
162:
163: }
164:
165: # Compare two students by name. The students are in the form
166: # returned by the helper:
167: # user:domain:section:last, first:status
168: # This is a helper function for the perl sort built-in therefore:
169: # Implicit Inputs:
170: # $a - The first element to compare (global)
171: # $b - The second element to compare (global)
172: # Returns:
173: # -1 - $a < $b
174: # 0 - $a == $b
175: # +1 - $a > $b
176: # Note that the initial comparison is done on the last names with the
177: # first names only used to break the tie.
178: #
179: #
180: sub compare_names {
181: # First split the names up into the primary fields.
182:
183: my ($u1, $d1, $s1, $n1, $stat1) = split(/:/, $a);
184: my ($u2, $d2, $s2, $n2, $stat2) = split(/:/, $b);
185:
186: # Now split the last name and first name of each n:
187: #
188:
189: my ($l1,$f1) = split(/,/, $n1);
190: my ($l2,$f2) = split(/,/, $n2);
191:
192: # We don't bother to remove the leading/trailing whitespace from the
193: # firstname, unless the last names compare identical.
194:
195: if($l1 lt $l2) {
196: return -1;
197: }
198: if($l1 gt $l2) {
199: return 1;
200: }
201:
202: # Break the tie on the first name, but there are leading (possibly trailing
203: # whitespaces to get rid of first
204: #
205: $f1 =~ s/^\s+//; # Remove leading...
206: $f1 =~ s/\s+$//; # Trailing spaces from first 1...
207:
208: $f2 =~ s/^\s+//;
209: $f2 =~ s/\s+$//; # And the same for first 2...
210:
211: if($f1 lt $f2) {
212: return -1;
213: }
214: if($f1 gt $f2) {
215: return 1;
216: }
217:
218: # Must be the same name.
219:
220: return 0;
221: }
222:
223: sub latex_header_footer_remove {
224: my $text = shift;
225: $text =~ s/\\end{document}//;
226: $text =~ s/\\documentclass([^&]*)\\begin{document}//;
227: return $text;
228: }
229:
230:
231: sub character_chart {
232: my $result = shift;
233: $result =~ s/&\#0?0?(7|9);//g;
234: $result =~ s/&\#0?(10|13);//g;
235: $result =~ s/&\#0?32;/ /g;
236: $result =~ s/&\#0?33;/!/g;
237: $result =~ s/&(\#0?34|quot);/\"/g;
238: $result =~ s/&\#0?35;/\\\#/g;
239: $result =~ s/&\#0?36;/\\\$/g;
240: $result =~ s/&\#0?37;/\\%/g;
241: $result =~ s/&(\#0?38|amp);/\\&/g;
242: $result =~ s/&\#(0?39|146);/\'/g;
243: $result =~ s/&\#0?40;/(/g;
244: $result =~ s/&\#0?41;/)/g;
245: $result =~ s/&\#0?42;/\*/g;
246: $result =~ s/&\#0?43;/\+/g;
247: $result =~ s/&\#(0?44|130);/,/g;
248: $result =~ s/&\#0?45;/-/g;
249: $result =~ s/&\#0?46;/\./g;
250: $result =~ s/&\#0?47;/\//g;
251: $result =~ s/&\#0?48;/0/g;
252: $result =~ s/&\#0?49;/1/g;
253: $result =~ s/&\#0?50;/2/g;
254: $result =~ s/&\#0?51;/3/g;
255: $result =~ s/&\#0?52;/4/g;
256: $result =~ s/&\#0?53;/5/g;
257: $result =~ s/&\#0?54;/6/g;
258: $result =~ s/&\#0?55;/7/g;
259: $result =~ s/&\#0?56;/8/g;
260: $result =~ s/&\#0?57;/9/g;
261: $result =~ s/&\#0?58;/:/g;
262: $result =~ s/&\#0?59;/;/g;
263: $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
264: $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
265: $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
266: $result =~ s/&\#0?63;/\?/g;
267: $result =~ s/&\#0?65;/A/g;
268: $result =~ s/&\#0?66;/B/g;
269: $result =~ s/&\#0?67;/C/g;
270: $result =~ s/&\#0?68;/D/g;
271: $result =~ s/&\#0?69;/E/g;
272: $result =~ s/&\#0?70;/F/g;
273: $result =~ s/&\#0?71;/G/g;
274: $result =~ s/&\#0?72;/H/g;
275: $result =~ s/&\#0?73;/I/g;
276: $result =~ s/&\#0?74;/J/g;
277: $result =~ s/&\#0?75;/K/g;
278: $result =~ s/&\#0?76;/L/g;
279: $result =~ s/&\#0?77;/M/g;
280: $result =~ s/&\#0?78;/N/g;
281: $result =~ s/&\#0?79;/O/g;
282: $result =~ s/&\#0?80;/P/g;
283: $result =~ s/&\#0?81;/Q/g;
284: $result =~ s/&\#0?82;/R/g;
285: $result =~ s/&\#0?83;/S/g;
286: $result =~ s/&\#0?84;/T/g;
287: $result =~ s/&\#0?85;/U/g;
288: $result =~ s/&\#0?86;/V/g;
289: $result =~ s/&\#0?87;/W/g;
290: $result =~ s/&\#0?88;/X/g;
291: $result =~ s/&\#0?89;/Y/g;
292: $result =~ s/&\#0?90;/Z/g;
293: $result =~ s/&\#0?91;/[/g;
294: $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
295: $result =~ s/&\#0?93;/]/g;
296: $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
297: $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
298: $result =~ s/&\#(0?96|145);/\`/g;
299: $result =~ s/&\#0?97;/a/g;
300: $result =~ s/&\#0?98;/b/g;
301: $result =~ s/&\#0?99;/c/g;
302: $result =~ s/&\#100;/d/g;
303: $result =~ s/&\#101;/e/g;
304: $result =~ s/&\#102;/f/g;
305: $result =~ s/&\#103;/g/g;
306: $result =~ s/&\#104;/h/g;
307: $result =~ s/&\#105;/i/g;
308: $result =~ s/&\#106;/j/g;
309: $result =~ s/&\#107;/k/g;
310: $result =~ s/&\#108;/l/g;
311: $result =~ s/&\#109;/m/g;
312: $result =~ s/&\#110;/n/g;
313: $result =~ s/&\#111;/o/g;
314: $result =~ s/&\#112;/p/g;
315: $result =~ s/&\#113;/q/g;
316: $result =~ s/&\#114;/r/g;
317: $result =~ s/&\#115;/s/g;
318: $result =~ s/&\#116;/t/g;
319: $result =~ s/&\#117;/u/g;
320: $result =~ s/&\#118;/v/g;
321: $result =~ s/&\#119;/w/g;
322: $result =~ s/&\#120;/x/g;
323: $result =~ s/&\#121;/y/g;
324: $result =~ s/&\#122;/z/g;
325: $result =~ s/&\#123;/\\{/g;
326: $result =~ s/&\#124;/\|/g;
327: $result =~ s/&\#125;/\\}/g;
328: $result =~ s/&\#126;/\~/g;
329: $result =~ s/&\#131;/\\textflorin /g;
330: $result =~ s/&\#132;/\"/g;
331: $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
332: $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
333: $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
334: $result =~ s/&\#137;/\\textperthousand /g;
335: $result =~ s/&\#140;/{\\OE}/g;
336: $result =~ s/&\#147;/\`\`/g;
337: $result =~ s/&\#148;/\'\'/g;
338: $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
339: $result =~ s/&\#150;/--/g;
340: $result =~ s/&\#151;/---/g;
341: $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
342: $result =~ s/&\#153;/\\texttrademark /g;
343: $result =~ s/&\#156;/\\oe/g;
344: $result =~ s/&\#159;/\\\"Y/g;
345: $result =~ s/&(\#160|nbsp);/~/g;
346: $result =~ s/&(\#161|iexcl);/!\`/g;
347: $result =~ s/&(\#162|cent);/\\textcent /g;
348: $result =~ s/&(\#163|pound);/\\pounds /g;
349: $result =~ s/&(\#164|curren);/\\textcurrency /g;
350: $result =~ s/&(\#165|yen);/\\textyen /g;
351: $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
352: $result =~ s/&(\#167|sect);/\\textsection /g;
353: $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
354: $result =~ s/&(\#169|copy);/\\copyright /g;
355: $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
356: $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
357: $result =~ s/&(\#173|shy);/ - /g;
358: $result =~ s/&(\#174|reg);/\\textregistered /g;
359: $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
360: $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
361: $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
362: $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
363: $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
364: $result =~ s/&(\#180|acute);/\\textacute /g;
365: $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
366: $result =~ s/&(\#182|para);/\\P/g;
367: $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
368: $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
369: $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
370: $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
371: $result =~ s/&(\#188|frac14);/\\textonequarter /g;
372: $result =~ s/&(\#189|frac12);/\\textonehalf /g;
373: $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
374: $result =~ s/&(\#191|iquest);/?\`/g;
375: $result =~ s/&(\#192|Agrave);/\\\`{A}/g;
376: $result =~ s/&(\#193|Aacute);/\\\'{A}/g;
377: $result =~ s/&(\#194|Acirc);/\\^{A}/g;
378: $result =~ s/&(\#195|Atilde);/\\~{A}/g;
379: $result =~ s/&(\#196|Auml);/\\\"{A}/g;
380: $result =~ s/&(\#197|Aring);/{\\AA}/g;
381: $result =~ s/&(\#198|AElig);/{\\AE}/g;
382: $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
383: $result =~ s/&(\#200|Egrave);/\\\`{E}/g;
384: $result =~ s/&(\#201|Eacute);/\\\'{E}/g;
385: $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
386: $result =~ s/&(\#203|Euml);/\\\"{E}/g;
387: $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
388: $result =~ s/&(\#205|Iacute);/\\\'{I}/g;
389: $result =~ s/&(\#206|Icirc);/\\^{I}/g;
390: $result =~ s/&(\#207|Iuml);/\\\"{I}/g;
391: $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
392: $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
393: $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
394: $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
395: $result =~ s/&(\#213|Otilde);/\\~{O}/g;
396: $result =~ s/&(\#214|Ouml);/\\\"{O}/g;
397: $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
398: $result =~ s/&(\#216|Oslash);/{\\O}/g;
399: $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;
400: $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
401: $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
402: $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
403: $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
404: $result =~ s/&(\#223|szlig);/{\\ss}/g;
405: $result =~ s/&(\#224|agrave);/\\\`{a}/g;
406: $result =~ s/&(\#225|aacute);/\\\'{a}/g;
407: $result =~ s/&(\#226|acirc);/\\^{a}/g;
408: $result =~ s/&(\#227|atilde);/\\~{a}/g;
409: $result =~ s/&(\#228|auml);/\\\"{a}/g;
410: $result =~ s/&(\#229|aring);/{\\aa}/g;
411: $result =~ s/&(\#230|aelig);/{\\ae}/g;
412: $result =~ s/&(\#231|ccedil);/\\c{c}/g;
413: $result =~ s/&(\#232|egrave);/\\\`{e}/g;
414: $result =~ s/&(\#233|eacute);/\\\'{e}/g;
415: $result =~ s/&(\#234|ecirc);/\\^{e}/g;
416: $result =~ s/&(\#235|euml);/\\\"{e}/g;
417: $result =~ s/&(\#236|igrave);/\\\`{i}/g;
418: $result =~ s/&(\#237|iacute);/\\\'{i}/g;
419: $result =~ s/&(\#238|icirc);/\\^{i}/g;
420: $result =~ s/&(\#239|iuml);/\\\"{i}/g;
421: $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
422: $result =~ s/&(\#241|ntilde);/\\~{n}/g;
423: $result =~ s/&(\#242|ograve);/\\\`{o}/g;
424: $result =~ s/&(\#243|oacute);/\\\'{o}/g;
425: $result =~ s/&(\#244|ocirc);/\\^{o}/g;
426: $result =~ s/&(\#245|otilde);/\\~{o}/g;
427: $result =~ s/&(\#246|ouml);/\\\"{o}/g;
428: $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
429: $result =~ s/&(\#248|oslash);/{\\o}/g;
430: $result =~ s/&(\#249|ugrave);/\\\`{u}/g;
431: $result =~ s/&(\#250|uacute);/\\\'{u}/g;
432: $result =~ s/&(\#251|ucirc);/\\^{u}/g;
433: $result =~ s/&(\#252|uuml);/\\\"{u}/g;
434: $result =~ s/&(\#253|yacute);/\\\'{y}/g;
435: $result =~ s/&(\#255|yuml);/\\\"{y}/g;
436: $result =~ s/&\#295;/\\ensuremath\{\\hbar\}/g;
437: $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
438: #Greek Alphabet
439: $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
440: $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
441: $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
442: $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
443: $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
444: $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
445: $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
446: $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
447: $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
448: $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
449: $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
450: $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
451: $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
452: $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
453: $result =~ s/&(omicron|\#959);/o/g;
454: $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
455: $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
456: $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
457: $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
458: $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
459: $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
460: $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
461: $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
462: $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
463: $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
464: $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
465: $result =~ s/&(Alpha|\#913);/A/g;
466: $result =~ s/&(Beta|\#914);/B/g;
467: $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
468: $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
469: $result =~ s/&(Epsilon|\#917);/E/g;
470: $result =~ s/&(Zeta|\#918);/Z/g;
471: $result =~ s/&(Eta|\#919);/H/g;
472: $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
473: $result =~ s/&(Iota|\#921);/I/g;
474: $result =~ s/&(Kappa|\#922);/K/g;
475: $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
476: $result =~ s/&(Mu|\#924);/M/g;
477: $result =~ s/&(Nu|\#925);/N/g;
478: $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
479: $result =~ s/&(Omicron|\#927);/O/g;
480: $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
481: $result =~ s/&(Rho|\#929);/P/g;
482: $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
483: $result =~ s/&(Tau|\#932);/T/g;
484: $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
485: $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
486: $result =~ s/&(Chi|\#935);/X/g;
487: $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
488: $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
489: #Arrows (extended HTML 4.01)
490: $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
491: $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
492: $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
493: $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
494: $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
495: $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
496: $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
497: $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
498: $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
499: $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
500: #Mathematical Operators (extended HTML 4.01)
501: $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
502: $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
503: $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
504: $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
505: $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
506: $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
507: $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
508: $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
509: $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
510: $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
511: $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
512: $result =~ s/–/\\ensuremath\{-\}/g;
513: $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
514: $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
515: $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
516: $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
517: $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
518: $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
519: $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
520: $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
521: $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
522: $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
523: $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
524: $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
525: $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
526: $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
527: $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
528: $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
529: $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
530: $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
531: $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
532: $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
533: $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
534: $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
535: $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
536: $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
537: $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
538: $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
539: #Geometric Shapes (extended HTML 4.01)
540: $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
541: #Miscellaneous Symbols (extended HTML 4.01)
542: $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
543: $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
544: $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
545: $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
546: return $result;
547: }
548:
549:
550: #width, height, oddsidemargin, evensidemargin, topmargin
551: my %page_formats=
552: ('letter' => {
553: 'book' => {
554: '1' => [ '7.1 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm'],
555: '2' => ['3.66 in','9.8 in', '-0.57 in','-0.57 in','0.7 cm']
556: },
557: 'album' => {
558: '1' => [ '8.8 in', '6.8 in','-40 pt in', '-60 pt','1 cm'],
559: '2' => [ '4.4 in', '6.8 in','-0.5 in', '-1.5 in','3.5 in']
560: },
561: },
562: 'legal' => {
563: 'book' => {
564: '1' => ['7.1 in','13 in',,'-0.57 in','-0.57 in','-0.5 in'],
565: '2' => ['3.16 in','13 in','-0.57 in','-0.57 in','-0.5 in']
566: },
567: 'album' => {
568: '1' => ['12 in','7.1 in',,'-0.57 in','-0.57 in','-0.5 in'],
569: '2' => ['6.0 in','7.1 in','-1 in','-1 in','5 in']
570: },
571: },
572: 'tabloid' => {
573: 'book' => {
574: '1' => ['9.8 in','16 in','-0.57 in','-0.57 in','-0.5 in'],
575: '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in']
576: },
577: 'album' => {
578: '1' => ['16 in','9.8 in','-0.57 in','-0.57 in','-0.5 in'],
579: '2' => ['16 in','4.9 in','-0.57 in','-0.57 in','-0.5 in']
580: },
581: },
582: 'executive' => {
583: 'book' => {
584: '1' => ['6.8 in','9 in','-0.57 in','-0.57 in','1.2 in'],
585: '2' => ['3.1 in','9 in','-0.57 in','-0.57 in','1.2 in']
586: },
587: 'album' => {
588: '1' => [],
589: '2' => []
590: },
591: },
592: 'a2' => {
593: 'book' => {
594: '1' => [],
595: '2' => []
596: },
597: 'album' => {
598: '1' => [],
599: '2' => []
600: },
601: },
602: 'a3' => {
603: 'book' => {
604: '1' => [],
605: '2' => []
606: },
607: 'album' => {
608: '1' => [],
609: '2' => []
610: },
611: },
612: 'a4' => {
613: 'book' => {
614: '1' => ['176 mm','272 mm','-40 pt in','-60 pt','-0.5 in'],
615: '2' => [ '91 mm','272 mm','-40 pt in','-60 pt','-0.5 in']
616: },
617: 'album' => {
618: '1' => ['8.5 in','7.7 in','-40 pt in','-60 pt','0 in'],
619: '2' => ['3.9 in','7.7 in','-40 pt in','-60 pt','0 in']
620: },
621: },
622: 'a5' => {
623: 'book' => {
624: '1' => [],
625: '2' => []
626: },
627: 'album' => {
628: '1' => [],
629: '2' => []
630: },
631: },
632: 'a6' => {
633: 'book' => {
634: '1' => [],
635: '2' => []
636: },
637: 'album' => {
638: '1' => [],
639: '2' => []
640: },
641: },
642: );
643:
644: sub page_format {
645: #
646: #Supported paper format: "Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",
647: # "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
648: # "A2 [420x594 mm]", "A3 [297x420 mm]",
649: # "A4 [210x297 mm]", "A5 [148x210 mm]",
650: # "A6 [105x148 mm]"
651: #
652: my ($papersize,$layout,$numberofcolumns) = @_;
653: return @{$page_formats{$papersize}->{$layout}->{$numberofcolumns}};
654: }
655:
656:
657: sub get_name {
658: my ($uname,$udom)=@_;
659: if (!defined($uname)) { $uname=$env{'user.name'}; }
660: if (!defined($udom)) { $udom=$env{'user.domain'}; }
661: my $plainname=&Apache::loncommon::plainname($uname,$udom);
662: if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
663: $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
664: return $plainname;
665: }
666:
667: sub get_course {
668: my $courseidinfo;
669: if (defined($env{'request.course.id'})) {
670: $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($env{'course.'.$env{'request.course.id'}.'.description'}),'header');
671: }
672: return $courseidinfo;
673: }
674:
675: sub page_format_transformation {
676: my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_;
677: my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
678: if ($selectionmade eq '4') {
679: $assignment='Problems from the Whole Course';
680: } else {
681: $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
682: }
683: ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
684: my $name = &get_name();
685: my $courseidinfo = &get_course();
686: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
687: my $topmargintoinsert = '';
688: if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
689: my $fancypagestatement='';
690: if ($numberofcolumns eq '2') {
691: $fancypagestatement="\\fancyhead{}\\fancyhead[LO]{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
692: } else {
693: $fancypagestatement="\\rhead{}\\chead{}\\lhead{\\textbf{$name} $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}";
694: }
695: if ($layout eq 'album') {
696: $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$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}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}\n /;
697: } elsif ($layout eq 'book') {
698: if ($choice ne 'All class print') {
699: $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/;
700: } else {
701: $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\n\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\n\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\n\\setcounter{page}{1} \\vskip 5 mm\n /;
702: }
703: if ($papersize eq 'a4') {
704: $text =~ s/(\\begin{document})/$1\\special{papersize=210mm,297mm}/;
705: }
706: }
707: if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
708: if ($indexlist eq 'yes') {
709: $text=~s/(\\begin{document})/\\makeindex $1/;
710: $text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
711: }
712: return $text;
713: }
714:
715:
716: sub page_cleanup {
717: my $result = shift;
718:
719: $result =~ m/\\end{document}(\d*)$/;
720: my $number_of_columns = $1;
721: my $insert = '{';
722: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
723: $insert .= '}';
724: $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
725: $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
726: return $result,$number_of_columns;
727: }
728:
729:
730: sub details_for_menu {
731: my ($helper)=@_;
732: my $postdata=$env{'form.postdata'};
733: if (!$postdata) { $postdata=$helper->{VARS}{'postdata'}; }
734: my $name_of_resource = &Apache::lonnet::gettitle($postdata);
735: my $symbolic = &Apache::lonnet::symbread($postdata);
736: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
737: $map=&Apache::lonnet::clutter($map);
738: my $name_of_sequence = &Apache::lonnet::gettitle($map);
739: if ($name_of_sequence =~ /^\s*$/) {
740: $map =~ m|([^/]+)$|;
741: $name_of_sequence = $1;
742: }
743: my $name_of_map = &Apache::lonnet::gettitle($env{'request.course.uri'});
744: if ($name_of_map =~ /^\s*$/) {
745: $env{'request.course.uri'} =~ m|([^/]+)$|;
746: $name_of_map = $1;
747: }
748: return ($name_of_resource,$name_of_sequence,$name_of_map);
749: }
750:
751:
752: sub latex_corrections {
753: my ($number_of_columns,$result,$selectionmade,$answer_mode) = @_;
754:
755: # $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
756: $result =~ s/\$number_of_columns/$number_of_columns/g;
757: if ($selectionmade eq '1' || $answer_mode eq 'only') {
758: $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/;
759: } else {
760: $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/;
761: }
762: $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
763: $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
764: #-- LaTeX corrections
765: my $first_comment = index($result,'<!--',0);
766: while ($first_comment != -1) {
767: my $end_comment = index($result,'-->',$first_comment);
768: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
769: $first_comment = index($result,'<!--',$first_comment);
770: }
771: $result =~ s/^\s+$//gm; #remove empty lines
772: #removes more than one empty space
773: $result =~ s|(\s\s+)|($1=~/[\n\r]/)?"\n":" "|ge;
774: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
775: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
776: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
777: $result =~ s/\\\\\s+\[/ \[/g;
778: #conversion of html characters to LaTeX equivalents
779: if ($result =~ m/&(\w+|#\d+);/) {
780: $result = &character_chart($result);
781: }
782: $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
783: $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
784:
785: return $result;
786: }
787:
788:
789: sub index_table {
790: my $currentURL = shift;
791: my $insex_string='';
792: $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
793: $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
794: return $insex_string;
795: }
796:
797:
798: sub IndexCreation {
799: my ($texversion,$currentURL)=@_;
800: my @key_words=split(/,/,&index_table($currentURL));
801: my $chunk='';
802: my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
803: if ($st>0) {
804: for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
805: $chunk=substr($texversion,0,$st+1);
806: substr($texversion,0,$st+1)=' ';
807: }
808: foreach my $key_word (@key_words) {
809: if ($key_word=~/\S+/) {
810: $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
811: }
812: }
813: if ($st>0) {substr($texversion,0,1)=$chunk;}
814: return $texversion;
815: }
816:
817: sub print_latex_header {
818: my $mode=shift;
819: my $output='\documentclass[letterpaper,twoside]{article}';
820: if (($mode eq 'batchmode') || (!$perm{'pav'})) {
821: $output.='\batchmode';
822: }
823: $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'."\n".
824: '\usepackage{multirow}'."\n".
825: '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'."\n".
826: '\usepackage[dvips]{graphicx}\usepackage{epsfig}'."\n".
827: '\usepackage{wrapfig}'.
828: '\usepackage{picins}\usepackage{calc}'."\n".
829: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'."\n".
830: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'."\n".
831: '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'."\n".
832: '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'."\n".
833: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
834: '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'."\n".
835: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'."\n".
836: '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'."\n".
837: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'."\n".
838: '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'."\n".
839: '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'."\n".
840: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
841: '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}'."\n";
842: return $output;
843: }
844:
845: sub path_to_problem {
846: my ($urlp,$colwidth)=@_;
847: $urlp=&Apache::lonnet::clutter($urlp);
848:
849: my $newurlp = '';
850: $colwidth=~s/\s*mm\s*$//;
851: #characters average about 2 mm in width
852: if (length($urlp)*2 > $colwidth) {
853: my @elements = split('/',$urlp);
854: my $curlength=0;
855: foreach my $element (@elements) {
856: if ($element eq '') { next; }
857: if ($curlength+(length($element)*2) > $colwidth) {
858: $newurlp .= '|\vskip -1 mm \verb|';
859: $curlength=length($element)*2;
860: } else {
861: $curlength+=length($element)*2;
862: }
863: $newurlp.='/'.$element;
864: }
865: } else {
866: $newurlp=$urlp;
867: }
868: return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
869: }
870:
871: sub recalcto_mm {
872: my $textwidth=shift;
873: my $LaTeXwidth;
874: if ($textwidth=~/(-?\d+\.?\d*)\s*cm/) {
875: $LaTeXwidth = $1*10;
876: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*mm/) {
877: $LaTeXwidth = $1;
878: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*in/) {
879: $LaTeXwidth = $1*25.4;
880: }
881: $LaTeXwidth.=' mm';
882: return $LaTeXwidth;
883: }
884:
885: sub get_textwidth {
886: my ($helper,$LaTeXwidth)=@_;
887: my $textwidth=$LaTeXwidth;
888: if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
889: $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
890: $textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
891: $helper->{'VARS'}->{'pagesize.widthunit'});
892: }
893: return $textwidth;
894: }
895:
896:
897: sub unsupported {
898: my ($currentURL,$mode)=@_;
899: if ($mode ne '') {$mode='\\'.$mode}
900: my $result.= &print_latex_header($mode);
901: if ($currentURL=~/\/ext\//) {
902: $result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
903: } else {
904: $result.=$currentURL;
905: }
906: $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
907: return $result;
908: }
909:
910:
911: #
912: # List of recently generated print files
913: #
914: sub recently_generated {
915: my $r=shift;
916: my $prtspool=$r->dir_config('lonPrtDir');
917: my $zip_result;
918: my $pdf_result;
919: opendir(DIR,$prtspool);
920:
921: my @files =
922: grep(/^$env{'user.name'}_$env{'user.domain'}_printout_(\d+)_.*\.(pdf|zip)$/,readdir(DIR));
923: closedir(DIR);
924:
925: @files = sort {
926: my ($actime) = (stat($prtspool.'/'.$a))[10];
927: my ($bctime) = (stat($prtspool.'/'.$b))[10];
928: return $bctime <=> $actime;
929: } (@files);
930:
931: foreach my $filename (@files) {
932: my ($ext) = ($filename =~ m/(pdf|zip)$/);
933: my ($cdev,$cino,$cmode,$cnlink,
934: $cuid,$cgid,$crdev,$csize,
935: $catime,$cmtime,$cctime,
936: $cblksize,$cblocks)=stat($prtspool.'/'.$filename);
937: my $result="<a href='/prtspool/$filename'>".
938: &mt('Generated [_1] ([_2] bytes)',
939: &Apache::lonlocal::locallocaltime($cctime),$csize).
940: '</a><br />';
941: if ($ext eq 'pdf') { $pdf_result .= $result; }
942: if ($ext eq 'zip') { $zip_result .= $result; }
943: }
944: if ($zip_result) {
945: $r->print('<h4>'.&mt('Recently generated printout zip files')."</h4>\n"
946: .$zip_result);
947: }
948: if ($pdf_result) {
949: $r->print('<h4>'.&mt('Recently generated printouts')."</h4>\n"
950: .$pdf_result);
951: }
952: }
953:
954: #
955: # Retrieve the hash of page breaks.
956: #
957: # Inputs:
958: # helper - reference to helper object.
959: # Outputs
960: # A reference to a page break hash.
961: #
962: #
963:
964: sub get_page_breaks {
965: my ($helper) = @_;
966: my %page_breaks;
967:
968: foreach my $break (split /\|\|\|/, $helper->{'VARS'}->{'FINISHPAGE'}) {
969: $page_breaks{$break} = 1;
970: }
971:
972: return %page_breaks;
973: }
974:
975: sub output_data {
976: my ($r,$helper,$rparmhash) = @_;
977: my %parmhash = %$rparmhash;
978: my $resources_printed = '';
979: my $html=&Apache::lonxml::xmlbegin();
980: my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
981: $r->print(<<ENDPART);
982: $html
983: <head>
984: <script type="text/javascript" language="Javascript">
985: var editbrowser;
986: function openbrowser(formname,elementname,only,omit) {
987: var url = '/res/?';
988: if (editbrowser == null) {
989: url += 'launch=1&';
990: }
991: url += 'catalogmode=interactive&';
992: url += 'mode=parmset&';
993: url += 'form=' + formname + '&';
994: if (only != null) {
995: url += 'only=' + only + '&';
996: }
997: if (omit != null) {
998: url += 'omit=' + omit + '&';
999: }
1000: url += 'element=' + elementname + '';
1001: var title = 'Browser';
1002: var options = 'scrollbars=1,resizable=1,menubar=0';
1003: options += ',width=700,height=600';
1004: editbrowser = open(url,title,options,'1');
1005: editbrowser.focus();
1006: }
1007: </script>
1008: <title>LON-CAPA output for printing</title>
1009: </head>
1010: $bodytag
1011: <p>
1012: Please stand by while processing your print request, this may take some time ...
1013: </p>
1014: ENDPART
1015:
1016:
1017:
1018: # fetch the pagebreaks and store them in the course environment
1019: # The page breaks will be pulled into the hash %page_breaks which is
1020: # indexed by symb and contains 1's for each break.
1021:
1022: $env{'form.pagebreaks'} = $helper->{'VARS'}->{'FINISHPAGE'};
1023: $env{'form.lastprinttype'} = $helper->{'VARS'}->{'PRINT_TYPE'};
1024: &Apache::loncommon::store_course_settings('print',
1025: {'pagebreaks' => 'scalar',
1026: 'lastprinttype' => 'scalar'});
1027:
1028: my %page_breaks = &get_page_breaks($helper);
1029:
1030: my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
1031: my ($result,$selectionmade) = ('','');
1032: my $number_of_columns = 1; #used only for pages to determine the width of the cell
1033: my @temporary_array=split /\|/,$format_from_helper;
1034: my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
1035: if ($laystyle eq 'L') {
1036: $laystyle='album';
1037: } else {
1038: $laystyle='book';
1039: }
1040: my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
1041: my $assignment = $env{'form.assignment'};
1042: my $LaTeXwidth=&recalcto_mm($textwidth);
1043: my @print_array=();
1044: my @student_names=();
1045:
1046: # Common settings for the %form has:
1047: # In some cases these settings get overriddent by specific cases, but the
1048: # settings are common enough to make it worthwhile factoring them out
1049: # here.
1050: #
1051: my %form;
1052: $form{'grade_target'} = 'tex';
1053: $form{'textwidth'} = &get_textwidth($helper, $LaTeXwidth);
1054:
1055: # If form.showallfoils is set, then request all foils be shown:
1056: # privilege will be enforced both by not allowing the
1057: # check box selecting this option to be presnt unless it's ok,
1058: # and by lonresponse's priv. check.
1059: # The if is here because lonresponse.pm only cares that
1060: # showallfoils is defined, not what the value is.
1061:
1062: if ($helper->{'VARS'}->{'showallfoils'} eq "1") {
1063: $form{'showallfoils'} = $helper->{'VARS'}->{'showallfoils'};
1064: }
1065:
1066: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
1067: #-- single document - problem, page, html, xml, ...
1068: my ($currentURL,$cleanURL);
1069:
1070: if ($helper->{'VARS'}->{'construction'} ne '1') {
1071: #prints published resource
1072: $currentURL=$helper->{'VARS'}->{'postdata'};
1073: $cleanURL=&Apache::lonenc::check_decrypt($currentURL);
1074: } else {
1075: #prints resource from the construction space
1076: $currentURL='/'.$helper->{'VARS'}->{'filename'};
1077: if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
1078: $cleanURL=$currentURL;
1079: }
1080: $selectionmade = 1;
1081: if ($cleanURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1082: my $rndseed=time;
1083: my $texversion='';
1084: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1085: my %moreenv;
1086: $moreenv{'request.filename'}=$cleanURL;
1087: if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
1088: $moreenv{'construct.style'}=$helper->{'VARS'}->{'style_file'};
1089: my $dom = $env{'user.domain'};
1090: my $user = $env{'user.name'};
1091: my $put_result = &Apache::lonnet::put('environment',{'construct.style'=>$helper->{'VARS'}->{'style_file'}},$dom,$user);
1092: }
1093: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
1094: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1095: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1096: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1097: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1098: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
1099: if ($helper->{'VARS'}->{'curseed'}) {
1100: $rndseed=$helper->{'VARS'}->{'curseed'};
1101: }
1102: $form{'rndseed'}=$rndseed;
1103: &Apache::lonnet::appenv(%moreenv);
1104: &Apache::lonnet::delenv('form.counter');
1105: &Apache::lonxml::init_counter();
1106: &Apache::lonxml::store_counter();
1107: $resources_printed .= $currentURL.':';
1108: $texversion.=&Apache::lonnet::ssi($currentURL,%form);
1109: &Apache::lonnet::delenv('form.counter');
1110: &Apache::lonnet::delenv('request.filename');
1111: }
1112: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1113: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1114: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1115: $form{'grade_target'}='answer';
1116: $form{'answer_output_mode'}='tex';
1117: $form{'rndseed'}=$rndseed;
1118: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
1119: $form{'problemtype'}='exam';
1120: }
1121: $resources_printed .= $currentURL.':';
1122: my $answer=&Apache::lonnet::ssi($currentURL,%form);
1123: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1124: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1125: } else {
1126: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1127: if ($helper->{'VARS'}->{'construction'} ne '1') {
1128: $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1129: $texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
1130: } else {
1131: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1132: my $URLpath=$cleanURL;
1133: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1134: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1135: }
1136: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1137: }
1138: }
1139: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1140: $texversion=&IndexCreation($texversion,$currentURL);
1141: }
1142: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1143: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
1144:
1145: }
1146: $result .= $texversion;
1147: if ($currentURL=~m/\.page\s*$/) {
1148: ($result,$number_of_columns) = &page_cleanup($result);
1149: }
1150: } elsif ($currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
1151: #printing content of sequence from the construction space
1152: my $flag_latex_header_remove = 'NO';
1153: my $rndseed=time;
1154: if ($helper->{'VARS'}->{'curseed'}) {
1155: $rndseed=$helper->{'VARS'}->{'curseed'};
1156: }
1157: $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
1158: my $errtext=&Apache::lonratedt::mapread($currentURL);
1159: for (my $member=0;$member<=$#Apache::lonratedt::order;$member++) {
1160: $Apache::lonratedt::resources[$Apache::lonratedt::order[$member]]=~/^([^:]*):([^:]*):/;
1161: my $urlp=$2;
1162: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
1163: my $texversion='';
1164: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1165: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1166: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1167: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1168: $form{'rndseed'}=$rndseed;
1169: $resources_printed .=$urlp.':';
1170: $texversion=&Apache::lonnet::ssi($urlp,%form);
1171: }
1172: if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1173: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) &&
1174: ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
1175: # Don't permanently modify %$form...
1176: my %answerform = %form;
1177: $answerform{'grade_target'}='answer';
1178: $answerform{'answer_output_mode'}='tex';
1179: $answerform{'rndseed'}=$rndseed;
1180: $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
1181: if ($urlp=~/\/res\//) {$env{'request.state'}='published';}
1182: $resources_printed .= $urlp.':';
1183: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1184: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1185: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1186: } else {
1187: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1188: $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'}).'}\vskip 0 mm ';
1189: $texversion.=&path_to_problem($urlp,$LaTeXwidth);
1190: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1191: }
1192: }
1193: if ($flag_latex_header_remove ne 'NO') {
1194: $texversion = &latex_header_footer_remove($texversion);
1195: } else {
1196: $texversion =~ s/\\end{document}//;
1197: }
1198: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1199: $texversion=&IndexCreation($texversion,$urlp);
1200: }
1201: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URpL'} eq 'yes') {
1202: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1203: }
1204: $result.=$texversion;
1205: $flag_latex_header_remove = 'YES';
1206: } elsif ($urlp=~/\.(sequence|page)$/) {
1207: $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
1208: }
1209: }
1210: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
1211: $result .= '\end{document}';
1212: } elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1213: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1214: if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
1215: $resources_printed .= $currentURL.':';
1216: my $texversion=&Apache::lonnet::ssi($currentURL,%form);
1217: $result .= $texversion;
1218: } else {
1219: $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'});
1220: }
1221: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
1222: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
1223: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
1224: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') or # BUGBUG
1225: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) {
1226: #-- produce an output string
1227: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
1228: $selectionmade = 2;
1229: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
1230: $selectionmade = 3;
1231: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
1232: $selectionmade = 4;
1233: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') { #BUGBUG
1234: $selectionmade = 4;
1235: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
1236: $selectionmade = 7;
1237: }
1238: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1239: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1240: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1241: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1242: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$form{'problem_split'}='yes';}
1243: my $flag_latex_header_remove = 'NO';
1244: my $flag_page_in_sequence = 'NO';
1245: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1246: my $prevassignment='';
1247: &Apache::lonnet::delenv('form.counter');
1248: &Apache::lonxml::init_counter();
1249: &Apache::lonxml::store_counter();
1250: for (my $i=0;$i<=$#master_seq;$i++) {
1251:
1252: # Note due to document structure, not allowed to put \newpage
1253: # prior to the first resource
1254:
1255: if (defined $page_breaks{$master_seq[$i]}) {
1256: if($i != 0) {
1257: $result.="\\newpage\n";
1258: }
1259: }
1260: my ($sequence,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
1261: $urlp=&Apache::lonnet::clutter($urlp);
1262: $form{'symb'}=$master_seq[$i];
1263:
1264: my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #title of the assignment which contains this problem
1265: if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
1266: if ($i==0) {$prevassignment=$assignment;}
1267: my $texversion='';
1268: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1269: $resources_printed .= $urlp.':';
1270: my $pre_counter=$env{'form.counter'};
1271: $texversion.=&Apache::lonnet::ssi($urlp,%form);
1272: if ($urlp=~/\.page$/) {
1273: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
1274: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
1275: $texversion =~ s/\\end{document}\d*/\\end{document}/;
1276: $flag_page_in_sequence = 'YES';
1277: }
1278: my ($envfile) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
1279: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1280: $envfile);
1281: my $current_counter=$env{'form.counter'};
1282: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1283: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1284: # Don't permanently pervert the %form hash
1285: my %answerform = %form;
1286: $answerform{'grade_target'}='answer';
1287: $answerform{'answer_output_mode'}='tex';
1288: $resources_printed .= $urlp.':';
1289: &Apache::lonnet::appenv(('form.counter' => $pre_counter));
1290: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1291: &Apache::lonnet::appenv(('form.counter' => $current_counter));
1292: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1293: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1294: } else {
1295: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
1296: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1297: $texversion.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($master_seq[$i]).'}\vskip 0 mm ';
1298: $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
1299: $texversion.='\vskip 1 mm '.$answer;
1300: } else {
1301: $texversion='';
1302: }
1303: }
1304: }
1305: if ($flag_latex_header_remove ne 'NO') {
1306: $texversion = &latex_header_footer_remove($texversion);
1307: } else {
1308: $texversion =~ s/\\end{document}//;
1309: }
1310: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1311: $texversion=&IndexCreation($texversion,$urlp);
1312: }
1313: if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
1314: my $name = &get_name();
1315: my $courseidinfo = &get_course();
1316: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1317: $prevassignment=$assignment;
1318: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip 5 mm ';
1319: }
1320: $result .= $texversion;
1321: $flag_latex_header_remove = 'YES';
1322: } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1323: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1324: if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
1325: $resources_printed .= $urlp.':';
1326: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1327: if ($flag_latex_header_remove ne 'NO') {
1328: $texversion = &latex_header_footer_remove($texversion);
1329: } else {
1330: $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
1331: }
1332: $result .= $texversion;
1333: $flag_latex_header_remove = 'YES';
1334: } else {
1335: $texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'});
1336: if ($flag_latex_header_remove ne 'NO') {
1337: $texversion = &latex_header_footer_remove($texversion);
1338: } else {
1339: $texversion =~ s/\\end{document}//;
1340: }
1341: $result .= $texversion;
1342: $flag_latex_header_remove = 'YES';
1343: }
1344: if (&Apache::loncommon::connection_aborted($r)) { last; }
1345: }
1346: &Apache::lonnet::delenv('form.counter');
1347: if ($flag_page_in_sequence eq 'YES') {
1348: $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
1349: }
1350: $result .= '\end{document}';
1351: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
1352: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
1353:
1354:
1355: #-- prints assignments for whole class or for selected students
1356: my $type;
1357: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
1358: $selectionmade=5;
1359: $type='problems';
1360: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
1361: $selectionmade=8;
1362: $type='resources';
1363: }
1364: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
1365: # The normal sort order is by section then by students within the
1366: # section. If the helper var student_sort is 1, then the user has elected
1367: # to override this and output the students by name.
1368: # Each element of the students array is of the form:
1369: # username:domain:section:last, first:status
1370: #
1371: #
1372: if ($helper->{'VARS'}->{'student_sort'} eq 1) {
1373: @students = sort compare_names @students;
1374: }
1375: if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
1376: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
1377: $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
1378: }
1379: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1380:
1381: #loop over students
1382: my $flag_latex_header_remove = 'NO';
1383: my %moreenv;
1384: $moreenv{'instructor_comments'}='hide';
1385: $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
1386: $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1387: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1388: $moreenv{'suppress_tries'} = $parmhash{'suppress_tries'};
1389: if ($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') {$moreenv{'problem_split'}='yes';}
1390: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
1391: my $student_counter=-1;
1392: foreach my $person (@students) {
1393:
1394: my $duefile="/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1395: if (-e $duefile) {
1396: my $temp_file = Apache::File->new('>>'.$duefile);
1397: print $temp_file "1969\n";
1398: }
1399: $student_counter++;
1400: my $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
1401: my ($output,$fullname, $printed)=&print_resources($r,$helper,
1402: $person,$type,
1403: \%moreenv,\@master_seq,
1404: $flag_latex_header_remove,
1405: $LaTeXwidth,
1406: $number_of_columns);
1407: $resources_printed .= ":";
1408: $print_array[$i].=$output;
1409: $student_names[$i].=$person.':'.$fullname.'_END_';
1410: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
1411: $flag_latex_header_remove = 'YES';
1412: if (&Apache::loncommon::connection_aborted($r)) { last; }
1413: }
1414: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1415: $result .= $print_array[0].' \end{document}';
1416: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon') ||
1417: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon') ) {
1418: my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
1419: my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
1420: my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
1421: my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
1422: my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
1423: my $single_code = $helper->{'VARS'}->{'SINGLE_CODE'};
1424: my $selected_code = $helper->{'VARS'}->{'CODE_SELECTED_FROM_LIST'};
1425:
1426: my $code_option=$helper->{'VARS'}->{'CODE_OPTION'};
1427: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
1428: my ($code_type,$code_length)=('letter',6);
1429: foreach my $line (<FH>) {
1430: my ($name,$type,$length) = (split(/:/,$line))[0,2,4];
1431: if ($name eq $code_option) {
1432: $code_length=$length;
1433: if ($type eq 'number') { $code_type = 'number'; }
1434: }
1435: }
1436: my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
1437: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1438: my $seed=time+($$<<16)+($$);
1439: my @allcodes;
1440: if ($old_name) {
1441: my %result=&Apache::lonnet::get('CODEs',
1442: [$old_name,"type\0$old_name"],
1443: $cdom,$cnum);
1444: $code_type=$result{"type\0$old_name"};
1445: @allcodes=split(',',$result{$old_name});
1446: $num_todo=scalar(@allcodes);
1447: } elsif ($selected_code) { # Selection value is always numeric.
1448: $num_todo = 1;
1449: @allcodes = ($selected_code);
1450: } elsif ($single_code) {
1451:
1452: $num_todo = 1; # Unconditionally one code to do.
1453: # If an alpha code have to convert to numbers so it can be
1454: # converted back to letters again :-)
1455: #
1456: if ($code_type ne 'number') {
1457: $single_code = &letters_to_num($single_code);
1458: }
1459: @allcodes = ($single_code);
1460: } else {
1461: my %allcodes;
1462: srand($seed);
1463: for (my $i=0;$i<$num_todo;$i++) {
1464: $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,$code_length,
1465: $code_type);
1466: }
1467: if ($code_name) {
1468: &Apache::lonnet::put('CODEs',
1469: {
1470: $code_name =>join(',',keys(%allcodes)),
1471: "type\0$code_name" => $code_type
1472: },
1473: $cdom,$cnum);
1474: }
1475: @allcodes=keys(%allcodes);
1476: }
1477: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1478: my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
1479: my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
1480: if ($number_per_page eq '0' || $number_per_page eq 'all') {
1481: $number_per_page=$num_todo;
1482: }
1483: my $flag_latex_header_remove = 'NO';
1484: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
1485: my $count=0;
1486: foreach my $code (sort(@allcodes)) {
1487: my $file_num=int($count/$number_per_page);
1488: if ($code_type eq 'number') {
1489: $moreenv{'CODE'}=$code;
1490: } else {
1491: $moreenv{'CODE'}=&num_to_letters($code);
1492: }
1493: my ($output,$fullname, $printed)=
1494: &print_resources($r,$helper,'anonymous',$type,\%moreenv,
1495: \@master_seq,$flag_latex_header_remove,
1496: $LaTeXwidth);
1497: $resources_printed .= ":";
1498: $print_array[$file_num].=$output;
1499: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
1500: &mt('last assignment').' '.$fullname);
1501: $flag_latex_header_remove = 'YES';
1502: $count++;
1503: if (&Apache::loncommon::connection_aborted($r)) { last; }
1504: }
1505: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1506: $result .= $print_array[0].' \end{document}';
1507: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
1508: #prints selected problems from the subdirectory
1509: $selectionmade = 6;
1510: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
1511: @list_of_files=sort @list_of_files;
1512: my $flag_latex_header_remove = 'NO';
1513: my $rndseed=time;
1514: if ($helper->{'VARS'}->{'curseed'}) {
1515: $rndseed=$helper->{'VARS'}->{'curseed'};
1516: }
1517: for (my $i=0;$i<=$#list_of_files;$i++) {
1518: my $urlp = $list_of_files[$i];
1519: $urlp=~s|//|/|;
1520: if ($urlp=~/\//) {
1521: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1522: $form{'rndseed'}=$rndseed;
1523: if ($urlp =~ m|/home/([^/]+)/public_html|) {
1524: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
1525: } else {
1526: $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
1527: }
1528: $resources_printed .= $urlp.':';
1529: my $texversion=&Apache::lonnet::ssi($urlp,%form);
1530: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1531: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1532: # Don't permanently pervert %form:
1533: my %answerform = %form;
1534: $answerform{'grade_target'}='answer';
1535: $answerform{'answer_output_mode'}='tex';
1536: $answerform{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1537: $answerform{'rndseed'}=$rndseed;
1538: $resources_printed .= $urlp.':';
1539: my $answer=&Apache::lonnet::ssi($urlp,%answerform);
1540: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1541: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1542: } else {
1543: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1544: if ($helper->{'VARS'}->{'construction'} ne '1') {
1545: $texversion.='\vskip 0 mm \noindent ';
1546: $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
1547: } else {
1548: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1549: my $URLpath=$urlp;
1550: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1551: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
1552: }
1553: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1554: }
1555: }
1556: #this chunck is responsible for printing the path to problem
1557: my $newurlp=$urlp;
1558: if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
1559: $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
1560: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
1561: if ($flag_latex_header_remove ne 'NO') {
1562: $texversion = &latex_header_footer_remove($texversion);
1563: } else {
1564: $texversion =~ s/\\end{document}//;
1565: }
1566: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1567: $texversion=&IndexCreation($texversion,$urlp);
1568: }
1569: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1570: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1571:
1572: }
1573: $result .= $texversion;
1574: }
1575: $flag_latex_header_remove = 'YES';
1576: }
1577: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
1578: $result .= '\end{document}';
1579: }
1580: #-------------------------------------------------------- corrections for the different page formats
1581: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
1582: $result = &latex_corrections($number_of_columns,$result,$selectionmade,
1583: $helper->{'VARS'}->{'ANSWER_TYPE'});
1584: for (my $i=1;$i<=$#print_array;$i++) {
1585: $print_array[$i] =
1586: &latex_corrections($number_of_columns,$print_array[$i],
1587: $selectionmade,
1588: $helper->{'VARS'}->{'ANSWER_TYPE'});
1589: }
1590: #changes page's parameters for the one column output
1591: if ($numberofcolumns == 1) {
1592: $result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
1593: $result =~ s/\\textheight\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
1594: $result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1595: $result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
1596: }
1597:
1598: #-- writing .tex file in prtspool
1599: my $temp_file;
1600: my $identifier = &Apache::loncommon::get_cgi_id();
1601: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout_$identifier.tex";
1602: if (!($#print_array>0)) {
1603: unless ($temp_file = Apache::File->new('>'.$filename)) {
1604: $r->log_error("Couldn't open $filename for output $!");
1605: return SERVER_ERROR;
1606: }
1607: print $temp_file $result;
1608: my $begin=index($result,'\begin{document}',0);
1609: my $inc=substr($result,0,$begin+16);
1610: } else {
1611: my $begin=index($result,'\begin{document}',0);
1612: my $inc=substr($result,0,$begin+16);
1613: for (my $i=0;$i<=$#print_array;$i++) {
1614: if ($i==0) {
1615: $print_array[$i]=$result;
1616: } else {
1617: my $anobegin=index($print_array[$i],'\setcounter{page}',0);
1618: substr($print_array[$i],0,$anobegin)='';
1619: $print_array[$i]=$inc.$print_array[$i].'\end{document}';
1620: }
1621: my $temp_file;
1622: my $newfilename=$filename;
1623: my $num=$i+1;
1624: $newfilename =~s/\.tex$//;
1625: $newfilename=sprintf("%s_%03d.tex",$newfilename, $num);
1626: unless ($temp_file = Apache::File->new('>'.$newfilename)) {
1627: $r->log_error("Couldn't open $newfilename for output $!");
1628: return SERVER_ERROR;
1629: }
1630: print $temp_file $print_array[$i];
1631: }
1632: }
1633: my $student_names='';
1634: if ($#print_array>0) {
1635: for (my $i=0;$i<=$#print_array;$i++) {
1636: $student_names.=$student_names[$i].'_ENDPERSON_';
1637: }
1638: } else {
1639: if ($#student_names>-1) {
1640: $student_names=$student_names[0].'_ENDPERSON_';
1641: } else {
1642: my $fullname = &get_name($env{'user.name'},$env{'user.domain'});
1643: $student_names=join(':',$env{'user.name'},$env{'user.domain'},
1644: $env{'request.course.sec'},$fullname).
1645: '_ENDPERSON_'.'_END_';
1646: }
1647: }
1648:
1649: my $URLback=''; #link to original document
1650: if ($helper->{'VARS'}->{'construction'} ne '1') {
1651: #prints published resource
1652: $URLback=&Apache::lonnet::escape('/adm/flip?postdata=return:');
1653: } else {
1654: #prints resource from the construction space
1655: $URLback='/'.$helper->{'VARS'}->{'filename'};
1656: if ($URLback=~/([^?]+)/) {
1657: $URLback=$1;
1658: $URLback=~s|^/~|/priv/|;
1659: }
1660: }
1661: # logic for now is too complex to trace if this has been defined
1662: # yet.
1663: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1664: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1665: &Apache::lonnet::appenv('cgi.'.$identifier.'.file' => $filename,
1666: 'cgi.'.$identifier.'.layout' => $laystyle,
1667: 'cgi.'.$identifier.'.numcol' => $numberofcolumns,
1668: 'cgi.'.$identifier.'.paper' => $papersize,
1669: 'cgi.'.$identifier.'.selection' => $selectionmade,
1670: 'cgi.'.$identifier.'.tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
1671: 'cgi.'.$identifier.'.tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
1672: 'cgi.'.$identifier.'.role' => $perm{'pav'},
1673: 'cgi.'.$identifier.'.numberoffiles' => $#print_array,
1674: 'cgi.'.$identifier.'.studentnames' => $student_names,
1675: 'cgi.'.$identifier.'.backref' => $URLback,);
1676: &Apache::lonnet::appenv("cgi.$identifier.user" => $env{'user.name'},
1677: "cgi.$identifier.domain" => $env{'user.domain'},
1678: "cgi.$identifier.courseid" => $cnum,
1679: "cgi.$identifier.coursedom" => $cdom,
1680: "cgi.$identifier.resources" => $resources_printed);
1681:
1682: $r->print(<<FINALEND);
1683: <br />
1684: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
1685: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
1686: </body>
1687: </html>
1688: FINALEND
1689: }
1690:
1691:
1692: sub get_CODE {
1693: my ($all_codes,$num,$seed,$size,$type)=@_;
1694: my $max='1'.'0'x$size;
1695: my $newcode;
1696: while(1) {
1697: $newcode=sprintf("%0".$size."d",int(rand($max)));
1698: if (!exists($$all_codes{$newcode})) {
1699: $$all_codes{$newcode}=1;
1700: if ($type eq 'number' ) {
1701: return $newcode;
1702: } else {
1703: return &num_to_letters($newcode);
1704: }
1705: }
1706: }
1707: }
1708:
1709: sub print_resources {
1710: my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
1711: $LaTeXwidth,$number_of_columns)=@_;
1712: my $current_output = '';
1713: my $printed = '';
1714: my ($username,$userdomain,$usersection) = split /:/,$person;
1715: my $fullname = &get_name($username,$userdomain);
1716: my $namepostfix;
1717: if ($person =~ 'anon') {
1718: $namepostfix="\\\\Name: ";
1719: $fullname = "CODE - ".$moreenv->{'CODE'};
1720: }
1721: my $i = 0;
1722: #goes through all resources, checks if they are available for
1723: #current student, and produces output
1724: &Apache::lonnet::delenv('form.counter');
1725: &Apache::lonxml::init_counter();
1726: &Apache::lonxml::store_counter();
1727: my %page_breaks = &get_page_breaks($helper);
1728:
1729: foreach my $curresline (@{$master_seq}) {
1730: if (defined $page_breaks{$curresline}) {
1731: if($i != 0) {
1732: $current_output.= "\\newpage\n";
1733: }
1734: }
1735: $i++;
1736: if ( !($type eq 'problems' &&
1737: ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
1738: my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
1739: if (&Apache::lonnet::allowed('bre',$res_url)) {
1740: if ($res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1741: $printed .= $curresline.':';
1742: my $pre_counter=$env{'form.counter'};
1743: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1744: my ($envfile) =
1745: ( $env{'user.environment'} =~ m|/([^/]+)\.id$| );
1746: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1747: $envfile);
1748: my $current_counter=$env{'form.counter'};
1749: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1750: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1751: # Use a copy of the hash so we don't pervert it on future loop passes.
1752: my %answerenv = %{$moreenv};
1753: $answerenv{'answer_output_mode'}='tex';
1754: $answerenv{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1755: &Apache::lonnet::appenv(('form.counter' => $pre_counter));
1756: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$env{'request.course.id'},%answerenv);
1757: &Apache::lonnet::appenv(('form.counter' => $current_counter));
1758: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1759: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
1760: } else {
1761: $rendered=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1762: $rendered.='\vskip 0 mm \noindent\textbf{'.&Apache::lonnet::gettitle($curresline).'}\vskip 0 mm ';
1763: $rendered.=&path_to_problem($res_url,$LaTeXwidth);
1764: $rendered.='\vskip 1 mm '.$ansrendered;
1765: }
1766: }
1767: if ($remove_latex_header eq 'YES') {
1768: $rendered = &latex_header_footer_remove($rendered);
1769: } else {
1770: $rendered =~ s/\\end{document}//;
1771: }
1772: $current_output .= $rendered;
1773: } elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1774: $printed .= $curresline.':';
1775: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
1776: my ($envfile) =
1777: ( $env{'user.environment'} =~ m|/([^/]+)\.id$| );
1778: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
1779: $envfile);
1780: my $current_counter=$env{'form.counter'};
1781: if ($remove_latex_header eq 'YES') {
1782: $rendered = &latex_header_footer_remove($rendered);
1783: } else {
1784: $rendered =~ s/\\end{document}//;
1785: }
1786: $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/'.$number_of_columns.'][b]{\hrulefill}\strut \vskip 0 mm \strut ';
1787: } else {
1788: my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'});
1789: if ($remove_latex_header ne 'NO') {
1790: $rendered = &latex_header_footer_remove($rendered);
1791: } else {
1792: $rendered =~ s/\\end{document}//;
1793: }
1794: $current_output .= $rendered;
1795: }
1796: }
1797: $remove_latex_header = 'YES';
1798: }
1799: if (&Apache::loncommon::connection_aborted($r)) { last; }
1800: }
1801: my $courseidinfo = &get_course();
1802: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1803: if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
1804: my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
1805: if ($current_output=~/\\documentclass/) {
1806: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}$namepostfix}}\\vskip 5 mm /;
1807: } else {
1808: my $blankpages = '';
1809: for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blankpages.='\clearpage\strut\clearpage';}
1810: $current_output = '\strut\vspace*{-6 mm}\\newline\\noindent\\makebox[\\textwidth/$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;
1811: }
1812: return ($current_output,$fullname, $printed);
1813:
1814: }
1815:
1816: sub handler {
1817:
1818: my $r = shift;
1819:
1820: &init_perm();
1821:
1822: # my $loaderror=&Apache::lonnet::overloaderror($r);
1823: # if ($loaderror) { return $loaderror; }
1824: # $loaderror=
1825: # &Apache::lonnet::overloaderror($r,
1826: # $env{'course.'.$env{'request.course.id'}.'.home'});
1827: # if ($loaderror) { return $loaderror; }
1828:
1829: my $helper = printHelper($r);
1830: if (!ref($helper)) {
1831: return $helper;
1832: }
1833:
1834: # my $key;
1835: # foreach $key (keys %{$helper->{'VARS'}}) {
1836: # $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
1837: # }
1838: # foreach $key (keys %env) {
1839: # $r->print(' '.$key.'->'.$env{$key}.'<-<br />');
1840: # }
1841: # return OK;
1842:
1843: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
1844:
1845: # my $key;
1846: # foreach $key (keys %parmhash) {
1847: # $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
1848: # }
1849: #
1850:
1851:
1852: # If a figure conversion queue file exists for this user.domain
1853: # we delete it since it can only be bad (if it were good, printout.pl
1854: # would have deleted it the last time around.
1855:
1856: my $conversion_queuefile = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
1857: if(-e $conversion_queuefile) {
1858: unlink $conversion_queuefile;
1859: }
1860: &output_data($r,$helper,\%parmhash);
1861: return OK;
1862: }
1863:
1864: use Apache::lonhelper;
1865:
1866: sub addMessage {
1867: my $text = shift;
1868: my $paramHash = Apache::lonhelper::getParamHash();
1869: $paramHash->{MESSAGE_TEXT} = $text;
1870: Apache::lonhelper::message->new();
1871: }
1872:
1873: use Data::Dumper;
1874:
1875: sub init_perm {
1876: undef(%perm);
1877: $perm{'pav'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1878: if (!$perm{'pav'}) {
1879: $perm{'pav'}=&Apache::lonnet::allowed('pav',
1880: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1881: }
1882: $perm{'pfo'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
1883: if (!$perm{'pfo'}) {
1884: $perm{'pfo'}=&Apache::lonnet::allowed('pfo',
1885: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1886: }
1887: }
1888:
1889: sub printHelper {
1890: my $r = shift;
1891:
1892: if ($r->header_only) {
1893: if ($env{'browser.mathml'}) {
1894: &Apache::loncommon::content_type($r,'text/xml');
1895: } else {
1896: &Apache::loncommon::content_type($r,'text/html');
1897: }
1898: $r->send_http_header;
1899: return OK;
1900: }
1901:
1902: # Send header, nocache
1903: if ($env{'browser.mathml'}) {
1904: &Apache::loncommon::content_type($r,'text/xml');
1905: } else {
1906: &Apache::loncommon::content_type($r,'text/html');
1907: }
1908: &Apache::loncommon::no_cache($r);
1909: $r->send_http_header;
1910: $r->rflush();
1911:
1912: # Unfortunately, this helper is so complicated we have to
1913: # write it by hand
1914:
1915: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
1916:
1917: my $helper = Apache::lonhelper::helper->new("Printing Helper");
1918: $helper->declareVar('symb');
1919: $helper->declareVar('postdata');
1920: $helper->declareVar('curseed');
1921: $helper->declareVar('probstatus');
1922: $helper->declareVar('filename');
1923: $helper->declareVar('construction');
1924: $helper->declareVar('assignment');
1925: $helper->declareVar('style_file');
1926: $helper->declareVar('student_sort');
1927: $helper->declareVar('FINISHPAGE');
1928: $helper->declareVar('PRINT_TYPE');
1929: $helper->declareVar("showallfoils");
1930:
1931: # The page breaks can get loaded initially from the course environment:
1932: # But we only do this in the initial state so that they are allowed to change.
1933: #
1934:
1935: $helper->{VARS}->{FINISHPAGE} = '';
1936:
1937: &Apache::loncommon::restore_course_settings('print',
1938: {'pagebreaks' => 'scalar',
1939: 'lastprinttype' => 'scalar'});
1940:
1941:
1942: if($helper->{VARS}->{PRINT_TYPE} eq $env{'form.lastprinttype'}) {
1943: if (!defined ($env{"form.CURRENT_STATE"})) {
1944:
1945: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1946: } else {
1947: my $state = $env{"form.CURRENT_STATE"};
1948: if ($state eq "START") {
1949: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
1950: }
1951: }
1952:
1953: }
1954:
1955:
1956: # This will persistently load in the data we want from the
1957: # very first screen.
1958: # Detect whether we're coming from construction space
1959: if ($env{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
1960: $helper->{VARS}->{'filename'} = "~$1/$2";
1961: $helper->{VARS}->{'construction'} = 1;
1962: } else {
1963: if ($env{'form.postdata'}) {
1964: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($env{'form.postdata'});
1965: }
1966: if ($env{'form.symb'}) {
1967: $helper->{VARS}->{'symb'} = $env{'form.symb'};
1968: }
1969: if ($env{'form.url'}) {
1970: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
1971: }
1972: }
1973:
1974: if ($env{'form.symb'}) {
1975: $helper->{VARS}->{'symb'} = $env{'form.symb'};
1976: }
1977: if ($env{'form.url'}) {
1978: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
1979:
1980: }
1981: $helper->{VARS}->{'symb'}=
1982: &Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
1983: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
1984: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
1985:
1986:
1987: # Extract map
1988: my $symb = $helper->{VARS}->{'symb'};
1989: my ($map, $id, $url);
1990: my $subdir;
1991:
1992: # Get the resource name from construction space
1993: if ($helper->{VARS}->{'construction'}) {
1994: $resourceTitle = substr($helper->{VARS}->{'filename'},
1995: rindex($helper->{VARS}->{'filename'}, '/')+1);
1996: $subdir = substr($helper->{VARS}->{'filename'},
1997: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
1998: } else {
1999: ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
2000: $helper->{VARS}->{'postdata'} =
2001: &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
2002:
2003: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
2004: my $postdata = $helper->{VARS}->{'postdata'};
2005: $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
2006: }
2007: $subdir = &Apache::lonnet::filelocation("", $url);
2008: }
2009: if (!$helper->{VARS}->{'curseed'} && $env{'form.curseed'}) {
2010: $helper->{VARS}->{'curseed'}=$env{'form.curseed'};
2011: }
2012: if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
2013: $helper->{VARS}->{'probstatus'}=$env{'form.problemtype'};
2014: }
2015:
2016: my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
2017:
2018: Apache::lonhelper::registerHelperTags();
2019:
2020: # "Delete everything after the last slash."
2021: $subdir =~ s|/[^/]+$||;
2022: if (not $helper->{VARS}->{'construction'}) {
2023: $subdir=$Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$subdir;
2024: }
2025: # "Remove all duplicate slashes."
2026: $subdir =~ s|/+|/|g;
2027:
2028: # What can be printed is a very dynamic decision based on
2029: # lots of factors. So we need to dynamically build this list.
2030: # To prevent security leaks, states are only added to the wizard
2031: # if they can be reached, which ensures manipulating the form input
2032: # won't allow anyone to reach states they shouldn't have permission
2033: # to reach.
2034:
2035: # printChoices is tracking the kind of printing the user can
2036: # do, and will be used in a choices construction later.
2037: # In the meantime we will be adding states and elements to
2038: # the helper by hand.
2039: my $printChoices = [];
2040: my $paramHash;
2041:
2042: if ($resourceTitle) {
2043: push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('what you just saw on the screen').")", 'current_document', 'PAGESIZE'];
2044: }
2045:
2046: # Useful filter strings
2047: my $isProblem = '($res->is_problem()||$res->contains_problem) ';
2048: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
2049: my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
2050: my $isNotMap = '!$res->is_sequence()';
2051: $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
2052: my $isMap = '$res->is_map()';
2053: my $symbFilter = '$res->shown_symb()';
2054: my $urlValue = '$res->link()';
2055:
2056: $helper->declareVar('SEQUENCE');
2057:
2058: # Useful for debugging: Dump the help vars
2059: # $r->print(Dumper($helper->{VARS}));
2060: # $r->print($map);
2061:
2062: # If we're in a sequence...
2063: if (($helper->{'VARS'}->{'construction'} ne '1') &&
2064:
2065: $helper->{VARS}->{'postdata'} &&
2066: $helper->{VARS}->{'assignment'}) {
2067: # Allow problems from sequence
2068: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems', 'CHOOSE_PROBLEMS'];
2069: # Allow all resources from sequence
2070: push @{$printChoices}, ["<b>".&mt('Resources')."</b> ".&mt('in')." <b><i>$sequenceTitle</i></b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
2071:
2072: my $helperFragment = <<HELPERFRAGMENT;
2073: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
2074: <message>(mark them then click "next" button) <br /></message>
2075: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2076: closeallpages="1">
2077: <nextstate>PAGESIZE</nextstate>
2078: <filterfunc>return $isProblem;</filterfunc>
2079: <mapurl>$map</mapurl>
2080: <valuefunc>return $symbFilter;</valuefunc>
2081: <option text='Newpage' variable='FINISHPAGE' />
2082: </resource>
2083: </state>
2084:
2085: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
2086: <message>(mark them then click "next" button) <br /></message>
2087: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2088: closeallpages="1">
2089: <nextstate>PAGESIZE</nextstate>
2090: <filterfunc>return $isNotMap;</filterfunc>
2091: <mapurl>$map</mapurl>
2092: <valuefunc>return $symbFilter;</valuefunc>
2093: <option text='Newpage' variable='FINISHPAGE' />
2094: </resource>
2095: </state>
2096: HELPERFRAGMENT
2097:
2098: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
2099: }
2100:
2101: # If the user has pfo (print for otheres) allow them to print all
2102: # problems and resources in the entier course, optionally for selected students
2103: if ($perm{'pfo'} &&
2104: ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) {
2105:
2106: push @{$printChoices}, ['<b>Problems</b> from <b>entire course</b>', 'all_problems', 'ALL_PROBLEMS'];
2107: push @{$printChoices}, ['<b>Resources</b> from <b>entire course</b>', 'all_resources', 'ALL_RESOURCES'];
2108: &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
2109: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
2110: <message>(mark them then click "next" button) <br /></message>
2111: <resource variable="RESOURCES" toponly='0' multichoice="1"
2112: suppressEmptySequences='0' addstatus="1" closeallpages="1">
2113: <nextstate>PAGESIZE</nextstate>
2114: <filterfunc>return $isProblemOrMap;</filterfunc>
2115: <choicefunc>return $isNotMap;</choicefunc>
2116: <valuefunc>return $symbFilter;</valuefunc>
2117: <option text='Newpage' variable='FINISHPAGE' />
2118: </resource>
2119: </state>
2120: <state name="ALL_RESOURCES" title="Select Resource(s) to print">
2121: <message>(Mark them then click "next" button) <br /> </message>
2122: <resource variable="RESOURCES" toponly='0' multichoice='1'
2123: suppressEmptySequences='0' addstatus='1' closeallpages='1'>
2124: <nextstate>PAGESIZE</nextstate>
2125: <filterfunc>return $isNotMap; </filterfunc>
2126: <valuefunc>return $symbFilter;</valuefunc>
2127: <option text='NewPage' variable='FINISHPAGE' />
2128: </resource>
2129: </state>
2130: ALL_PROBLEMS
2131:
2132: if ($helper->{VARS}->{'assignment'}) {
2133: 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'];
2134: 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'];
2135: }
2136: my $resource_selector=<<RESOURCE_SELECTOR;
2137: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2138: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2139: closeallpages="1">
2140: <filterfunc>return $isProblem;</filterfunc>
2141: <mapurl>$map</mapurl>
2142: <valuefunc>return $symbFilter;</valuefunc>
2143: <option text='New Page' variable='FINISHPAGE' />
2144: </resource>
2145: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2146: <choices variable="EMPTY_PAGES">
2147: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2148: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2149: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2150: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2151: </choices>
2152: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2153: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2154: RESOURCE_SELECTOR
2155:
2156: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
2157: <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
2158: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" coursepersonnel="1"/>
2159: <message><b>Select sort order</b> </message>
2160: <choices variable='student_sort'>
2161: <choice computer='0'>Sort by section then student</choice>
2162: <choice computer='1'>Sort by students across sections.</choice>
2163: </choices>
2164: $resource_selector
2165: </state>
2166: CHOOSE_STUDENTS
2167:
2168: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2169: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2170: my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
2171: my $namechoice='<choice></choice>';
2172: foreach my $name (sort {uc($a) cmp uc($b)} @names) {
2173: if ($name =~ /^error: 2 /) { next; }
2174: if ($name =~ /^type\0/) { next; }
2175: $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
2176: }
2177:
2178:
2179: my %all_codes = &Apache::lonnet::get('CODEs',
2180: \@names, $cdom,$cnum);
2181: my %code_values;
2182: my %codes_to_print;
2183: foreach my $key (keys(%all_codes)) {
2184: %code_values = &Apache::grades::get_codes($key, $cdom, $cnum);
2185: foreach my $key (keys(%code_values)) {
2186: $codes_to_print{$key} = 1;
2187: }
2188: }
2189:
2190: my $code_selection = "<choice></choice>\n";
2191: foreach my $code (sort {uc($a) cmp uc($b)} (keys(%codes_to_print))) {
2192: my $choice = $code;
2193: if ($code =~ /^[A-Z]+$/) { # Alpha code
2194: $choice = &letters_to_num($code);
2195: }
2196: $code_selection .= ' <choice computer="'.$choice.'">'.$code."</choice>\n";
2197: }
2198: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
2199: my $codechoice='';
2200: foreach my $line (<FH>) {
2201: my ($name,$description,$code_type,$code_length)=
2202: (split(/:/,$line))[0,1,2,4];
2203: if ($code_length > 0 &&
2204: $code_type =~/^(letter|number|-1)/) {
2205: $codechoice.='<choice computer="'.$name.'">'.$description.'</choice>';
2206: }
2207: }
2208: if ($codechoice eq '') {
2209: $codechoice='<choice computer="default">Default</choice>';
2210: }
2211: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
2212: <state name="CHOOSE_ANON1" title="Select Students and Resources">
2213: <nextstate>PAGESIZE</nextstate>
2214: <message><hr width='33%' /></message>
2215: <message><table><tr><td><b>Number of anonymous assignments to print?</b></td><td></message>
2216: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2217: <validator>
2218: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2219: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2220: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2221: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2222: return "You need to specify the number of assignments to print";
2223: }
2224: return undef;
2225: </validator>
2226: </string>
2227: <message></td></tr><tr><td></message>
2228: <message><b>Value of CODE to print?</b></td><td></message>
2229: <string variable="SINGLE_CODE" size="10" defaultvalue="zzzz">
2230: <validator>
2231: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2232: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2233: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2234: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2235: \$helper->{'VARS'}{'CODE_OPTION'});
2236: } else {
2237: return undef; # Other forces control us.
2238: }
2239: </validator>
2240: </string>
2241: <message></td></tr><tr><td></message>
2242: <message><b>Choose single code from list</b></message>
2243: <message></td><td></message>
2244: <dropdown variable="CODE_SELECTED_FROM_LIST" multichoice="0" allowempty="0">
2245: $code_selection
2246: </dropdown>
2247: <message></td></tr><tr><td></message>
2248: <message><b>Names to store the CODEs under for later:</b></message>
2249: <message></td><td></message>
2250: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2251: <message></td></tr><tr><td></message>
2252: <message><b>Bubble sheet type:</b></message>
2253: <message></td><td></message>
2254: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2255: $codechoice
2256: </dropdown>
2257: <message></td></tr></table></message>
2258: <message><hr width='33%' /></message>
2259: <message><b>Reprint a set of saved CODEs:</b></message>
2260: <dropdown variable="REUSE_OLD_CODES">
2261: $namechoice
2262: </dropdown>
2263: <message><hr width='33%' /></message>
2264: $resource_selector
2265: </state>
2266: CHOOSE_ANON1
2267:
2268:
2269: if ($helper->{VARS}->{'assignment'}) {
2270: 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'];
2271: 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'];
2272: }
2273:
2274:
2275: $resource_selector=<<RESOURCE_SELECTOR;
2276: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2277: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2278: closeallpages="1">
2279: <filterfunc>return $isNotMap;</filterfunc>
2280: <mapurl>$map</mapurl>
2281: <valuefunc>return $symbFilter;</valuefunc>
2282: <option text='Newpage' variable='FINISHPAGE' />
2283: </resource>
2284: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2285: <choices variable="EMPTY_PAGES">
2286: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2287: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2288: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2289: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2290: </choices>
2291: <message><hr width='33%' /><b>Number of assignments printed at the same time: </b></message>
2292: <string variable="NUMBER_TO_PRINT" maxlength="5" size="5"><defaultvalue>"all"</defaultvalue></string>
2293: RESOURCE_SELECTOR
2294:
2295: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
2296: <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
2297: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" coursepersonnel="1" />
2298: <choices variable='student_sort'>
2299: <choice computer='0'>Sort by section then student</choice>
2300: <choice computer='1'>Sort by students across sections.</choice>
2301: </choices>
2302:
2303: $resource_selector
2304: </state>
2305: CHOOSE_STUDENTS1
2306:
2307: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
2308: <state name="CHOOSE_ANON2" title="Select Students and Resources">
2309: <nextstate>PAGESIZE</nextstate>
2310: <message><table><tr><td><b>Number of anonymous assignments to print?</b></td><td></message>
2311: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2312: <validator>
2313: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2314: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2315: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2316: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2317: return "You need to specify the number of assignments to print";
2318: }
2319: return undef;
2320: </validator>
2321: </string>
2322: <message></td></tr><tr><td></message>
2323: <message><b>Value of CODE to print?</b></td><td></message>
2324: <string variable="SINGLE_CODE" size="10" defaultvalue="zzzz">
2325: <validator>
2326: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2327: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2328: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2329: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2330: \$helper->{'VARS'}{'CODE_OPTION'});
2331: } else {
2332: return undef; # Other forces control us.
2333: }
2334: </validator>
2335: </string>
2336: <message></td></tr><tr><td></message>
2337: <message><b>Choose single code from list</b></message>
2338: <message></td><td></message>
2339: <dropdown variable="CODE_SELECTED_FROM_LIST" multichoice="0" allowempty="0">
2340: $code_selection
2341: </dropdown>
2342: <message></td></tr><tr><td></message>
2343: <message><b>Names to store the CODEs under for later:</b></message>
2344: <message></td><td></message>
2345: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2346: <message></td></tr><tr><td></message>
2347: <message><b>Bubble sheet type:</b></message>
2348: <message></td><td></message>
2349: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2350: $codechoice
2351: </dropdown>
2352: <message></td></tr></table></message>
2353: <message><hr width='33%' /></message>
2354: <message><b>Reprint a set of saved CODEs:</b></message>
2355: <dropdown variable="REUSE_OLD_CODES">
2356: $namechoice
2357: </dropdown>
2358: <message><hr width='33%' /></message>
2359: $resource_selector
2360: </state>
2361: CHOOSE_ANON2
2362: }
2363:
2364: # FIXME: That RE should come from a library somewhere.
2365: if ((((&Apache::lonnet::allowed('bre',$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 $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/') {
2366: push @{$printChoices}, ["<b>".&mt('Problems')."</b> ".&mt('from current subdirectory')." <b><i>$subdir</i></b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
2367:
2368: my $f = '$filename';
2369: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
2370: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
2371: <message>(mark them then click "next" button) <br /></message>
2372: <files variable="FILES" multichoice='1'>
2373: <nextstate>PAGESIZE</nextstate>
2374: <filechoice>return '$subdir';</filechoice>
2375: CHOOSE_FROM_SUBDIR
2376:
2377: # this is broken up because I really want interpolation above,
2378: # and I really DON'T want it below
2379: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
2380: <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
2381: $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
2382: </filefilter>
2383: </files>
2384: </state>
2385: CHOOSE_FROM_SUBDIR
2386: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2387: }
2388:
2389: # Allow the user to select any sequence in the course, feed it to
2390: # another resource selector for that sequence
2391: if (!$helper->{VARS}->{'construction'}) {
2392: push @$printChoices, ["<b>Resources</b> from <b>selected sequence</b> in course",
2393: 'select_sequences', 'CHOOSE_SEQUENCE'];
2394: my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
2395: #Escape apostrophes and backslashes for Perl
2396: $escapedSequenceName =~ s/\\/\\\\/g;
2397: $escapedSequenceName =~ s/'/\\'/g;
2398: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
2399: <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
2400: <message>Select the sequence to print resources from:</message>
2401: <resource variable="SEQUENCE">
2402: <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
2403: <filterfunc>return \$res->is_sequence;</filterfunc>
2404: <valuefunc>return $urlValue;</valuefunc>
2405: <choicefunc>return \$res->hasResource(\$res,sub { return !\$_[0]->is_sequence() },0,0);
2406: </choicefunc>
2407: </resource>
2408: </state>
2409: <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
2410: <message>(mark desired resources then click "next" button) <br /></message>
2411: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2412: closeallpages="1">
2413: <nextstate>PAGESIZE</nextstate>
2414: <filterfunc>return $isProblem</filterfunc>
2415: <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
2416: <valuefunc>return $symbFilter;</valuefunc>
2417: <option text='Newpage' variable='FINISHPAGE' />
2418: </resource>
2419: </state>
2420: CHOOSE_FROM_ANY_SEQUENCE
2421: }
2422:
2423: # Generate the first state, to select which resources get printed.
2424: Apache::lonhelper::state->new("START", "Select Printing Options:");
2425: $paramHash = Apache::lonhelper::getParamHash();
2426: $paramHash->{MESSAGE_TEXT} = "";
2427: Apache::lonhelper::message->new();
2428: $paramHash = Apache::lonhelper::getParamHash();
2429: $paramHash->{'variable'} = 'PRINT_TYPE';
2430: $paramHash->{CHOICES} = $printChoices;
2431: Apache::lonhelper::choices->new();
2432:
2433: my $startedTable = 0; # have we started an HTML table yet? (need
2434: # to close it later)
2435:
2436: if (($perm{'pav'} and &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) or
2437: ($helper->{VARS}->{'construction'} eq '1')) {
2438: addMessage("<hr width='33%' /><table><tr><td align='right'>Print: </td><td>");
2439: $paramHash = Apache::lonhelper::getParamHash();
2440: $paramHash->{'variable'} = 'ANSWER_TYPE';
2441: $helper->declareVar('ANSWER_TYPE');
2442: $paramHash->{CHOICES} = [
2443: ['Without Answers', 'yes'],
2444: ['With Answers', 'no'],
2445: ['Only Answers', 'only']
2446: ];
2447: Apache::lonhelper::dropdown->new();
2448: addMessage("</td></tr>");
2449: $startedTable = 1;
2450: }
2451:
2452: if ($perm{'pav'}) {
2453: if (!$startedTable) {
2454: addMessage("<hr width='33%' /><table><tr><td align='right'>LaTeX mode: </td><td>");
2455: $startedTable = 1;
2456: } else {
2457: addMessage("<tr><td align='right'>LaTeX mode: </td><td>");
2458: }
2459: $paramHash = Apache::lonhelper::getParamHash();
2460: $paramHash->{'variable'} = 'LATEX_TYPE';
2461: $helper->declareVar('LATEX_TYPE');
2462: if ($helper->{VARS}->{'construction'} eq '1') {
2463: $paramHash->{CHOICES} = [
2464: ['standard LaTeX mode', 'standard'],
2465: ['LaTeX batchmode', 'batchmode'], ];
2466: } else {
2467: $paramHash->{CHOICES} = [
2468: ['LaTeX batchmode', 'batchmode'],
2469: ['standard LaTeX mode', 'standard'] ];
2470: }
2471: Apache::lonhelper::dropdown->new();
2472:
2473: addMessage("</td></tr><tr><td align='right'>Print Table of Contents: </td><td>");
2474: $paramHash = Apache::lonhelper::getParamHash();
2475: $paramHash->{'variable'} = 'TABLE_CONTENTS';
2476: $helper->declareVar('TABLE_CONTENTS');
2477: $paramHash->{CHOICES} = [
2478: ['No', 'no'],
2479: ['Yes', 'yes'] ];
2480: Apache::lonhelper::dropdown->new();
2481: addMessage("</td></tr>");
2482:
2483: if (not $helper->{VARS}->{'construction'}) {
2484: addMessage("<tr><td align='right'>Print Index: </td><td>");
2485: $paramHash = Apache::lonhelper::getParamHash();
2486: $paramHash->{'variable'} = 'TABLE_INDEX';
2487: $helper->declareVar('TABLE_INDEX');
2488: $paramHash->{CHOICES} = [
2489: ['No', 'no'],
2490: ['Yes', 'yes'] ];
2491: Apache::lonhelper::dropdown->new();
2492: addMessage("</td></tr>");
2493: addMessage("<tr><td align='right'>Print Discussions: </td><td>");
2494: $paramHash = Apache::lonhelper::getParamHash();
2495: $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';
2496: $helper->declareVar('PRINT_DISCUSSIONS');
2497: $paramHash->{CHOICES} = [
2498: ['No', 'no'],
2499: ['Yes', 'yes'] ];
2500: Apache::lonhelper::dropdown->new();
2501: addMessage("</td></tr>");
2502:
2503: addMessage("<tr><td align = 'right'> </td><td>");
2504: $paramHash = Apache::lonhelper::getParamHash();
2505: $paramHash->{'multichoice'} = "true";
2506: $paramHash->{'allowempty'} = "true";
2507: $paramHash->{'variable'} = "showallfoils";
2508: $paramHash->{'CHOICES'} = [ ["Show all foils", "1"] ];
2509: Apache::lonhelper::choices->new();
2510: addMessage("</td></tr>");
2511: }
2512:
2513: if ($helper->{'VARS'}->{'construction'}) {
2514: my $stylevalue=$env{'construct.style'};
2515: my $xmlfrag .= <<"RNDSEED";
2516: <message><tr><td align='right'>Use random seed: </td><td></message>
2517: <string variable="curseed" size="15" maxlength="15">
2518: <defaultvalue>
2519: return $helper->{VARS}->{'curseed'};
2520: </defaultvalue>
2521: </string>
2522: <message></td></tr><tr><td align="right">Use style file:</td><td></message>
2523: <message><input type="text" size="40" name="style_file_value" value="$stylevalue" /> <a href="javascript:openbrowser('helpform','style_file','sty')">Select style file</a> </td><tr><td></message>
2524: <choices allowempty="1" multichoice="true" variable="showallfoils">
2525: <choice computer="1">Show all foils?</choice>
2526: </choices>
2527: <message></td></tr></message>
2528: RNDSEED
2529: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
2530: $helper->{'VARS'}->{'style_file'}=$env{'form.style_file_value'};
2531:
2532: }
2533: }
2534:
2535:
2536:
2537:
2538: if ($startedTable) {
2539: addMessage("</table>");
2540: }
2541:
2542: Apache::lonprintout::page_format_state->new("FORMAT");
2543:
2544: # Generate the PAGESIZE state which will offer the user the margin
2545: # choices if they select one column
2546: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
2547: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
2548:
2549:
2550: $helper->process();
2551:
2552: # MANUAL BAILOUT CONDITION:
2553: # If we're in the "final" state, bailout and return to handler
2554: if ($helper->{STATE} eq 'FINAL') {
2555: return $helper;
2556: }
2557:
2558: $r->print($helper->display());
2559: if ($helper->{STATE} eq 'START') {
2560: &recently_generated($r);
2561: }
2562: &Apache::lonhelper::unregisterHelperTags();
2563:
2564: return OK;
2565: }
2566:
2567:
2568: 1;
2569:
2570: package Apache::lonprintout::page_format_state;
2571:
2572: =pod
2573:
2574: =head1 Helper element: page_format_state
2575:
2576: See lonhelper.pm documentation for discussion of the helper framework.
2577:
2578: Apache::lonprintout::page_format_state is an element that gives the
2579: user an opportunity to select the page layout they wish to print
2580: with: Number of columns, portrait/landscape, and paper size. If you
2581: want to change the paper size choices, change the @paperSize array
2582: contents in this package.
2583:
2584: page_format_state is always directly invoked in lonprintout.pm, so there
2585: is no tag interface. You actually pass parameters to the constructor.
2586:
2587: =over 4
2588:
2589: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2590:
2591: =back
2592:
2593: =cut
2594:
2595: use Apache::lonhelper;
2596:
2597: no strict;
2598: @ISA = ("Apache::lonhelper::element");
2599: use strict;
2600: use Apache::lonlocal;
2601: use Apache::lonnet;
2602:
2603: my $maxColumns = 2;
2604: # it'd be nice if these all worked
2605: #my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2606: # "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
2607: # "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]",
2608: # "a5 [148x210 mm]", "a6 [105x148 mm]" );
2609: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
2610: "a4 [210x297 mm]");
2611:
2612: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
2613: # Paper type
2614:
2615: sub new {
2616: my $self = Apache::lonhelper::element->new();
2617:
2618: shift;
2619:
2620: $self->{'variable'} = shift;
2621: my $helper = Apache::lonhelper::getHelper();
2622: $helper->declareVar($self->{'variable'});
2623: bless($self);
2624: return $self;
2625: }
2626:
2627: sub render {
2628: my $self = shift;
2629: my $helper = Apache::lonhelper::getHelper();
2630: my $result = '';
2631: my $var = $self->{'variable'};
2632: my $PageLayout=&mt('Page layout');
2633: my $NumberOfColumns=&mt('Number of columns');
2634: my $PaperType=&mt('Paper type');
2635: $result .= <<STATEHTML;
2636:
2637: <hr width="33%" />
2638: <table cellpadding="3">
2639: <tr>
2640: <td align="center"><b>$PageLayout</b></td>
2641: <td align="center"><b>$NumberOfColumns</b></td>
2642: <td align="center"><b>$PaperType</b></td>
2643: </tr>
2644: <tr>
2645: <td>
2646: <label><input type="radio" name="${var}.layout" value="L" /> Landscape </label><br />
2647: <label><input type="radio" name="${var}.layout" value="P" checked='1' /> Portrait </label>
2648: </td>
2649: <td align="center">
2650: <select name="${var}.cols">
2651: STATEHTML
2652:
2653: my $i;
2654: for ($i = 1; $i <= $maxColumns; $i++) {
2655: if ($i == 2) {
2656: $result .= "<option value='$i' selected>$i</option>\n";
2657: } else {
2658: $result .= "<option value='$i'>$i</option>\n";
2659: }
2660: }
2661:
2662: $result .= "</select></td><td>\n";
2663: $result .= "<select name='${var}.paper'>\n";
2664:
2665: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
2666: my $DefaultPaperSize=lc($parmhash{'default_paper_size'});
2667: $DefaultPaperSize=~s/\s//g;
2668: if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
2669: $i = 0;
2670: foreach (@paperSize) {
2671: $_=~/(\w+)/;
2672: my $papersize=$1;
2673: if ($paperSize[$i]=~/$DefaultPaperSize/) {
2674: $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
2675: } else {
2676: $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
2677: }
2678: $i++;
2679: }
2680: $result .= "</select></td></tr></table>";
2681: return $result;
2682: }
2683:
2684: sub postprocess {
2685: my $self = shift;
2686:
2687: my $var = $self->{'variable'};
2688: my $helper = Apache::lonhelper->getHelper();
2689: $helper->{VARS}->{$var} =
2690: $env{"form.$var.layout"} . '|' . $env{"form.$var.cols"} . '|' .
2691: $env{"form.$var.paper"};
2692: return 1;
2693: }
2694:
2695: 1;
2696:
2697: package Apache::lonprintout::page_size_state;
2698:
2699: =pod
2700:
2701: =head1 Helper element: page_size_state
2702:
2703: See lonhelper.pm documentation for discussion of the helper framework.
2704:
2705: Apache::lonprintout::page_size_state is an element that gives the
2706: user the opportunity to further refine the page settings if they
2707: select a single-column page.
2708:
2709: page_size_state is always directly invoked in lonprintout.pm, so there
2710: is no tag interface. You actually pass parameters to the constructor.
2711:
2712: =over 4
2713:
2714: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
2715:
2716: =back
2717:
2718: =cut
2719:
2720: use Apache::lonhelper;
2721: use Apache::lonnet;
2722: no strict;
2723: @ISA = ("Apache::lonhelper::element");
2724: use strict;
2725:
2726:
2727:
2728: sub new {
2729: my $self = Apache::lonhelper::element->new();
2730:
2731: shift; # disturbs me (probably prevents subclassing) but works (drops
2732: # package descriptor)... - Jeremy
2733:
2734: $self->{'variable'} = shift;
2735: my $helper = Apache::lonhelper::getHelper();
2736: $helper->declareVar($self->{'variable'});
2737:
2738: # The variable name of the format element, so we can look into
2739: # $helper->{VARS} to figure out whether the columns are one or two
2740: $self->{'formatvar'} = shift;
2741:
2742: # The state to transition to after selection, or after discovering
2743: # the cols are not set to 1
2744: $self->{NEXTSTATE} = shift;
2745: bless($self);
2746: return $self;
2747: }
2748:
2749: sub render {
2750: my $self = shift;
2751: my $helper = Apache::lonhelper::getHelper();
2752: my $result = '';
2753: my $var = $self->{'variable'};
2754:
2755: if (defined $self->{ERROR_MSG}) {
2756: $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
2757: }
2758:
2759: $result .= <<ELEMENTHTML;
2760:
2761: <p>How should the column be formatted?</p>
2762:
2763: <table cellpadding='3'>
2764: <tr>
2765: <td align='right'><b>Width</b>:</td>
2766: <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
2767: <td align='left'>
2768: <select name='$var.widthunit'>
2769: <option>cm</option><option>in</option>
2770: </select>
2771: </td>
2772: </tr>
2773: <tr>
2774: <td align='right'><b>Height</b>:</td>
2775: <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
2776: <td align='left'>
2777: <select name='$var.heightunit'>
2778: <option>cm</option><option>in</option>
2779: </select>
2780: </td>
2781: </tr>
2782: <tr>
2783: <td align='right'><b>Left margin</b>:</td>
2784: <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
2785: <td align='left'>
2786: <select name='$var.lmarginunit'>
2787: <option>cm</option><option>in</option>
2788: </select>
2789: </td>
2790: </tr>
2791: </table>
2792:
2793: <p>Hint: Some instructors like to leave scratch space for the student by
2794: making the width much smaller than the width of the page.</p>
2795:
2796: ELEMENTHTML
2797:
2798: return $result;
2799: }
2800:
2801: # If the user didn't select 1 column, skip this state.
2802: sub preprocess {
2803: my $self = shift;
2804: my $helper = Apache::lonhelper::getHelper();
2805:
2806: my $format = $helper->{VARS}->{$self->{'formatvar'}};
2807: if (substr($format, 2, 1) ne '1') {
2808: $helper->changeState($self->{NEXTSTATE});
2809: }
2810:
2811: return 1;
2812: }
2813:
2814: sub postprocess {
2815: my $self = shift;
2816:
2817: my $var = $self->{'variable'};
2818: my $helper = Apache::lonhelper->getHelper();
2819: my $width = $helper->{VARS}->{$var .'.width'} = $env{"form.${var}.width"};
2820: my $height = $helper->{VARS}->{$var .'.height'} = $env{"form.${var}.height"};
2821: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $env{"form.${var}.lmargin"};
2822: $helper->{VARS}->{$var .'.widthunit'} = $env{"form.${var}.widthunit"};
2823: $helper->{VARS}->{$var .'.heightunit'} = $env{"form.${var}.heightunit"};
2824: $helper->{VARS}->{$var .'.lmarginunit'} = $env{"form.${var}.lmarginunit"};
2825:
2826: my $error = '';
2827:
2828: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
2829: # by an optional period, followed by digits, ending the string
2830:
2831: if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2832: $error .= "Invalid width; please type only a number.<br />\n";
2833: }
2834: if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2835: $error .= "Invalid height; please type only a number.<br />\n";
2836: }
2837: if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) {
2838: $error .= "Invalid left margin; please type only a number.<br />\n";
2839: }
2840:
2841: if (!$error) {
2842: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
2843: return 1;
2844: } else {
2845: $self->{ERROR_MSG} = $error;
2846: return 0;
2847: }
2848: }
2849:
2850:
2851:
2852: __END__
2853:
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