Annotation of loncom/interface/entities.pm, revision 1.5
1.1 foxr 1: # The LearningOnline Network
2: # entity -> tex.
3: #
4: # $Id:
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: # http://www.lon-capa.org/
26: #
27: #
28: package Apache::entities;
29: use strict;
30: #
31: # This file contains a table driven entity-->latex converter.
32: #
33: # Assumptions:
34: # The number of entities in a resource is small compared with the
35: # number of possible entities that might be translated.
36: # Therefore the strategy is to match a general entity pattern
37: # &.+; over and over, pull out the match look it up in an entity -> tex hash
38: # and do the replacement.
39: #
40: # In order to simplify the hash, the following reductions are done:
41: # &#d+; have the &# and ; stripped and is converted to an int.
42: # &#.+; have the &#x and ; stripped and is converted to an int as a hex
43: # value.
44: # All others have the & and ; stripped.
45:
46:
47: # The hash: Add new conversions here; leave off the leading & and the trailing ;
48: # all numeric entities need only appear as their decimal versions
49: # (e.g. no need for 1234 is sufficient, no need for 0x4d2 as well.
50: #
51: # This entity table is mercilessly cribbed from the HTML pocket reference
52: # table starting at pg 82. In most cases the LaTeX equivalent codes come from
53: # the original massive regular expression replacements originally by
54: # A. Sakharuk in lonprintout.pm
55: #
1.2 foxr 56: # I also want to acknowledge
57: # ISO Character entities and their LaTeX equivalents by
58: # Vidar Bronken Gundersen, and Rune Mathisen
59: # http://www.bitjungle.com/isoent-ref.pdf
60: #
61:
1.1 foxr 62: # Note numerical entities are essentially unicode character codes.
63: #
64: my %entities = {
65:
66: # ---- ASCII code page: ----------------
67:
68: # Translation to empty strings:
69:
70: 7 => "",
71: 9 => "",
72: 10 => "",
73: 13 => "",
74:
75: # Translations to simple characters:
76:
77: 32 => " ",
78: 33 => "!",
79: 34 => '"',
80: 'quot' => '"',
81: 35 => '\\\#',
82: 36 => '\\\$',
83: 37 => '\\%',
84: 38 => '\\&',
85: 'amp' => '\\&',
86: 39 => '\'', # Apostrophe
87: 40 => '(',
88: 41 => ')',
89: 42 => '\*',
90: 43 => '\+',
91: 44 => ',', # comma
92: 45 => '-',
93: 46 => '\.',
94: 47 => '\/',
95: 48 => '0',
96: 49 => '1',
97: 50 => '2',
98: 51 => '3',
99: 52 => '4',
100: 53 => '5',
101: 54 => '6',
102: 55 => '7',
103: 56 => '8',
104: 57 => '9',
105: 58 => ':',
106: 59 => ';',
107: 60 => '\\ensuremath\{<\}',
108: 'lt' => '\\ensuremath\{<\}',
109: 61 => '\\ensuremath\{=\}',
110: 62 => '\\ensuremath\{>\}',
111: 'gt' => '\\ensuremath\{>\}',
112: 63 => '\?',
113: 64 => '@',
114: 65 => 'A',
115: 66 => 'B',
116: 67 => 'C',
117: 68 => 'D',
118: 69 => 'E',
119: 70 => 'F',
120: 71 => 'G',
121: 72 => 'H',
122: 73 => 'I',
123: 74 => 'J',
124: 75 => 'K',
125: 76 => 'L',
126: 77 => 'M',
127: 78 => 'N',
128: 79 => 'O',
129: 80 => 'P',
130: 81 => 'Q',
131: 82 => 'R',
132: 83 => 'S',
133: 84 => 'T',
134: 85 => 'U',
135: 86 => 'V',
136: 87 => 'W',
137: 88 => 'X',
138: 89 => 'Y',
139: 90 => 'Z',
140: 91 => '[',
141: 92 => '\\ensuremath\{\\setminus\}', # \setminus is \ with special spacing.
142: 93 => ']',
143: 94 => '\\ensuremath\{\\wedge\}',
144: 95 => '\\underline\{\\makebox[2mm]\\{\\strut\}\}', # Underline 2mm of space for _
145: 96 => '`',
146: 97 => 'a',
147: 98 => 'b',
148: 99 => 'c',
149: 100 => 'd',
150: 101 => 'e',
151: 102 => 'f',
152: 103 => 'g',
153: 104 => 'h',
154: 105 => 'i',
155: 106 => 'j',
156: 107 => 'k',
157: 108 => 'l',
158: 109 => 'm',
159: 110 => 'n',
160: 111 => 'o',
161: 112 => 'p',
162: 113 => 'q',
163: 114 => 'r',
164: 115 => 's',
165: 116 => 't',
166: 117 => 'u',
167: 118 => 'v',
168: 119 => 'w',
169: 120 => 'x',
170: 121 => 'y',
171: 122 => 'z',
172: 123 => '\\{',
173: 124 => '\|',
174: 125 => '\\}',
175: 126 => '\~',
176:
177: # Controls and Latin-1 supplement. Note that some entities that have
178: # visible effect are not printing unicode characters. Specifically
179: # ‚- 
180:
181: 130 => ',',
182: 131 => '\\textflorin ',
183: 132 => ',,', # Low double left quotes.
184: 133 => '\\ensuremat\{\\ldots\}',
185: 134 => '\\ensuremath\{\\dagger\}',
186: 135 => '\\ensuremath\{\\ddagger\}',
187: 136 => '\\ensuremath\{\\wedge\}',
188: 137 => '\\textperthousand ',
189: 138 => '\\v\{S\}',
190: 139 => '\\ensuremath\{<\}',
191: 140 => '\{\\OE\}',
192:
193: # There's a gap here in my entity table
194:
195: 145 => '\`',
196: 146 => '\'',
197: 147 => '\`\`',
198: 148 => '\'\'',
199: 149 => '\\ensuremath\{\\bullet\}',
200: 150 => '--',
201: 151 => '---',
202: 152 => '\\ensuremath\{\\sim\}',
203: 153 => '\\texttrademark',
204: 154 => '\\v\{s\}',
205: 155 => '\\ensuremath\{>\}',
206: 156 => '\\oe ',
207:
208: # Another short gap:
209:
210: 159 => '\\"Y',
211: 160 => '~',
212: 'nbsp' => '~',
213: 161 => '\\textexclamdown ',
214: 'iexcl' => '\\textexclamdown ',
215: 162 => '\\textcent ',
216: 'cent' => '\\textcent ',
217: 163 => '\\pounds ',
218: 'pound' => '\\pounds ',
219: 164 => '\\textcurrency ',
220: 'curren' => '\\textcurrency ',
221: 165 => '\\textyen ',
222: 'yen' => '\\textyen ',
223: 166 => '\\textbrokenbar ',
224: 'brvbar' => '\\textbrokenbar ',
225: 167 => '\\textsection ',
226: 'sect' => '\\textsection ',
227: 168 => '\\texthighdieresis ',
228: 'uml' => '\\texthighdieresis ',
229: 169 => '\\copyright ',
230: 'copy' => '\\copyright ',
231: 170 => '\\textordfeminine ',
232: 'ordf' => '\\textordfeminine ',
233: 171 => '\\ensuremath\{\ll\}', # approximation of left angle quote.
234: 'laquo' => '\\ensuremath\{\ll\}', # ""
235: 172 => '\\ensuremath\{\\neg\}',
236: 'not' => '\\ensuremath\{\\neg\}',
237: 173 => ' - ',
238: 'shy' => ' - ',
239: 174 => '\\textregistered ',
240: 'reg' => '\\textregistered ',
241: 175 => '\\ensuremath\{^\{-\}\}',
242: 'macr' => '\\ensuremath\{^\{-\}\}',
243: 176 => '\\ensuremath\{^\{\\circ\}\}',
244: 'deg' => '\\ensuremath\{^\{\\circ\}\}',
245: 177 => '\\ensuremath\{\\pm\}',
246: 'plusmn' => '\\ensuremath\{\\pm\}',
247: 178 => '\\ensuremath\{^2\}',
248: 'sup2' => '\\ensuremath\{^2\}',
249: 179 => '\\ensuremath\{^3\}',
250: 'sup3' => '\\ensuremath\{^3\}',
251: 180 => '\\textacute ',
252: 'acute' => '\\textacute ',
253: 181 => '\\ensuremath\{\\mu\}',
254: 'micro' => '\\ensuremath\{\\mu\}',
255: 182 => '\\P ',
256: para => '\\P ',
257: 183 => '\\ensuremath\{\\cdot\}',
258: 'middot' => '\\ensuremath\{\\cdot\}',
259: 184 => '\\c\{\\strut\}',
260: 'cedil' => '\\c\{\\strut\}',
261: 185 => '\\ensuremath\{^1\}',
262: sup1 => '\\ensuremath\{^1\}',
263: 186 => '\\textordmasculine ',
264: 'ordm' => '\\textordmasculine ',
265: 187 => '\\ensuremath\{\\gg\}',
266: 'raquo' => '\\ensuremath\{\\gg\}',
267: 188 => '\\textonequarter ',
268: 'frac14' => '\\textonequarter ',
269: 189 => '\\textonehalf' ,
270: 'frac12' => '\\textonehalf' ,
271: 190 => '\\textthreequarters ',
272: 'frac34' => '\\textthreequarters ',
273: 191 => '\\textquestiondown ',
274: 'iquest' => '\\textquestiondown ',
275: 192 => '\\\`\{A\}',
276: 'Agrave' => '\\\`\{A\}',
277: 193 => '\\\'\{A\}',
278: 'Aacute' => '\\\'\{A\}',
279: 194 => '\\^\{A\}',
280: 'Acirc' => '\\^\{A\}',
281: 195 => '\\~{A}',
282: 'Atilde'=> '\\~{A}',
283: 196 => '\\\"{A}',
284: 'Auml' => '\\\"{A}',
285: 197 => '{\\AA}',
286: 'Aring' => '{\\AA}',
287: 198 => '{\\AE}',
288: 'AElig' => '{\\AE}',
289: 199 => '\\c{c}',
290: 'Ccedil'=> '\\c{c}',
291: '200' => '\\\`{E}',
292: 'Egrave'=> '\\\`{E}',
293: 201 => '\\\'{E}',
294: 'Eacute'=> '\\\'{E}',
295: 202 => '\\\^{E}',
296: 'Ecirc' => '\\\^{E}',
297: 203 => '\\\"{E}',
298: 'Euml' => '\\\"{E}',
299: 204 => '\\\`{I}',
300: 'Igrave'=> '\\\`{I}',
301: 205 => '\\\'{I}',
302: 'Iacute'=> '\\\'{I}',
303: 206 => '\\\^{I}',
304: 'Icirc' => '\\\^{I}',
305: 207 => '\\\"{I}',
306: 'Iuml' => '\\\"{I}',
307: 208 => '\\OE',
308: 'ETH' => '\\OE',
309: 209 => '\\~{N}',
310: 'Ntilde'=> '\\~{N}',
311: 210 => '\\\`{O}',
312: 'Ograve'=> '\\\`{O}',
313: 211 => '\\\'{O}',
314: 'Oacute'=> '\\\'{O}',
315: 212 => '\\\^{O}',
316: 'Ocirc' => '\\\^{O}',
317: 213 => '\\~{O}',
318: 'Otilde'=> '\\~{O}',
319: 214 => '\\\"{O}',
320: 'Ouml' => '\\\"{O}',
321: 215 => '\\ensuremath\{\\times\}',
322: 'times' => '\\ensuremath\{\\times\}',
323: 216 => '\\O',
324: 'Oslash'=> '\\O',
325: 217 => '\\\`{U}',
326: 'Ugrave'=> '\\\`{U}',
327: 218 => '\\\'{U}',
328: 'Uacute'=> '\\\'{U}',
329: 219 => '\\\^{U}',
330: 'Ucirc' => '\\\^{U}',
331: 220 => '\\\"{U}',
332: 'Uuml' => '\\\"{U}',
333: 221 => '\\\'{Y}',
334: 'Yacute'=> '\\\'{Y}',
335: 222 => '\\TH',
336: 'THORN' => '\\TH',
337: 223 => '{\\sz}',
338: 'szlig' => '{\\sz}',
339: 224 => '\\\`{a}',
340: 'agrave'=> '\\\`{a}',
341: 225 => '\\\'{a}',
342: 'aacute'=> '\\\'{a}',
343: 226 => '\\\^{a}',
344: 'acirc' => '\\\^{a}',
345: 227 => '\\\~{a}',
346: 'atilde'=> '\\\~{a}',
347: 228 => '\\\"{a}',
348: 'auml' => '\\\"{a}',
349: 229 => '\\aa',
350: 'aring' => '\\aa',
351: 230 => '\\ae',
352: 'aelig' => '\\ae',
353: 231 => '\\c{c}',
354: 'ccedil'=> '\\c{c}',
355: 232 => '\\\`{e}',
356: 'egrave'=> '\\\`{e}',
357: 233 => '\\\'{e}',
358: 'eacute'=> '\\\'{e}',
359: 234 => '\\\^{e}',
360: 'ecirc' => '\\\^{e}',
361: 235 => '\\\"{e}',
362: 'euml' => '\\\"{e}',
363: 236 => '\\\`{i}',
364: 'igrave'=> '\\\`{i}',
365: 237 => '\\\'{i}',
366: 'iacute'=> '\\\'{i}',
367: 238 => '\\\^{i}',
368: 'icirc' => '\\\^{i}',
369: 239 => '\\\"{i}',
370: 'iuml' => '\\\"{i}',
371: 240 => '\\dh',
372: 'eth' => '\\dh',
373: 241 => '\\\~{n}',
374: 'ntilde'=> '\\\~{n}',
375: 242 => '\\\`{o}',
376: 'ograve'=> '\\\`{o}',
377: 243 => '\\\'{o}',
378: 'oacute'=> '\\\'{o}',
379: 244 => '\\\^{o}',
380: 'ocirc' => '\\\^{o}',
381: 245 => '\\\~{o}',
382: 'otilde'=> '\\\~{o}',
383: 246 => '\\\"{o}',
384: 'ouml' => '\\\"{o}',
385: 247 => '\\ensuremath\{\\div\}',
386: 'divide'=> '\\ensuremath\{\\div\}',
387: 248 => '{\\o}',
388: 'oslash'=> '{\\o}',
389: 249 => '\\\`{u}',
390: 'ugrave'=> '\\\`{u}',
391: 250 => '\\\'{u}',
392: 'uacute'=> '\\\'{u}',
393: 251 => '\\\^{u}',
394: 'ucirc' => '\\\^{u}',
395: 252 => '\\\"{u}',
396: 'uuml' => '\\\"{u}',
397: 253 => '\\\'{y}',
398: 'yacute'=> '\\\'{y}',
399: 254 => '\\th',
400: 'thorn' => '\\th',
401: 255 => '\\\"{y}',
402: 'yuml' => '\\\"{y}',
403:
404: # hbar entity number comes from the unicode charater:
405: # see e.g. http://www.unicode.org/charts/PDF/U0100.pdf
406: # ISO also documents a 'planck' entity.
407:
408: 295 => '\\ensuremath\{\hbar\}',
409: 'plank' => '\\ensuremath\{\hbar\}',
410:
411: # Latin extended-A HTML 4.01 entities:
412:
413: 338 => '\\OE',
414: 'OElig' => '\\OE',
415: 339 => '\\oe',
416: 'oelig' => '\\oe',
417: 352 => '\\v{S}',
418: 'Scaron' => '\\v{S}',
419: 353 => '\\v{s}',
420: 'scaron' => '\\v{s}',
421: 376 => '\\\"{Y}',
422: 'Yuml' => '\\\"{Y}',
423:
424:
425: # Latin extended B HTML 4.01 entities
426:
427: 402 => '\\ensuremath{f}',
428: 'fnof' => '\\ensuremath{f}',
429:
430: # Spacing modifier letters:
431:
432: 710 => '\^{}',
433: 'circ' => '\^{}',
434: 732 => '\~{}',
435: 'tilde' => '\~{}',
436:
437: # Greek uppercase:
438:
439: 913 => '\\ensuremath\{\\mathrm\{A\}\}',
440: 'Alpha' => '\\ensuremath\{\\mathrm\{A\}\}',
441: 914 => '\\ensuremath\{\\mathrm\{B\}\}',
442: 'Beta' => '\\ensuremath\{\\mathrm\{B\}\}',
443: 915 => '\\ensuremath\{\\Gamma\}',
444: 'Gamma' => '\\ensuremath\{\\Gamma\}',
445: 916 => '\\ensuremath\{\\Delta\}',
446: 'Delta' => '\\ensuremath\{\\Delta\}',
447: 917 => '\\ensuremath\{\\mathrm\{E\}\}',
448: 'Epsilon'=> '\\ensuremath\{\\mathrm\{E\}\}',
449: 918 => '\\ensuremath\{\\mathrm\{Z\}\}',
450: 'Zeta' => '\\ensuremath\{\\mathrm\{Z\}\}',
451: 919 => '\\ensuremath\{\\mathrm\{H\}\}',
452: 'Eta' => '\\ensuremath\{\\mathrm\{H\}\}',
453: 920 => '\\ensuremath\{\\Theta\}',
454: 'Theta' => '\\ensuremath\{\\Theta\}',
455: 921 => '\\ensuremath\{\\mathrm\{I\}\}',
456: 'Iota' => '\\ensuremath\{\\mathrm\{I\}\}',
457: 922 => '\\ensuremath\{\\mathrm\{K\}\}',
458: 'Kappa' => '\\ensuremath\{\\mathrm\{K\}\}',
459: 923 => '\\ensuremath\{\\Lambda\}',
460: 'Lambda' => '\\ensuremath\{\\Lambda\}',
461: 924 => '\\ensuremath\{\\mathrm\{M\}\}',
462: 'Mu' => '\\ensuremath\{\\mathrm\{M\}\}',
463: 925 => '\\ensuremath\{\\mathrm\{N\}\}',
464: 'Nu' => '\\ensuremath\{\\mathrm\{N\}\}',
465: 926 => '\\ensuremath\{\\mathrm\{\\Xi\}',
466: 'Xi' => '\\ensuremath\{\\mathrm\{\\Xi\}',
467: 927 => '\\ensuremath\{\\mathrm\{O\}\}',
468: 'Omicron'=> '\\ensuremath\{\\mathrm\{O\}\}',
469: 928 => '\\ensuremath\{\\Pi\}',
470: 'Pi' => '\\ensuremath\{\\Pi\}',
471: 929 => '\\ensuremath\{\\mathrm\{P\}\}',
472: 'Rho' => '\\ensuremath\{\\mathrm\{P\}\}',
473:
474: # Skips 930
475:
476: 931 => '\\ensuremath\{\Sigma\}',
477: 'Sigma' => '\\ensuremath\{\Sigma\}',
478: 932 => '\\ensuremath\{\\mathrm\{T\}\}',
479: 'Tau' => '\\ensuremath\{\\mathrm\{T\}\}',
480: 933 => '\\ensuremath\{\\Upsilon\}',
481: 'Upsilon'=> '\\ensuremath\{\\Upsilon\}',
482: 934 => '\\ensuremath\{\\Phi\}',
483: 'Phi' => '\\ensuremath\{\\Phi\}',
484: 935 => '\\ensuremath\{\\mathrm\{X\}\}',
485: 'Chi' => '\\ensuremath\{\\mathrm\{X\}\}',
486: 936 => '\\ensuremath\{\\Psi\}',
487: 'Psi' => '\\ensuermath\{\\Psi\}',
488: 937 => '\\ensuremath\{\\Omega\}',
489: 'Omega' => '\\ensuremath\{\\Omega\}',
490:
491:
492: # Greek lowercase:
493:
494: 945 => '\\ensuremath\{\\alpha\}',
495: 'alpha' => '\\ensuremath\{\\alpha\}',
496: 946 => '\\ensuremath\{\\beta\}',
497: 'beta' => '\\ensuremath\{\\beta\}',
498: 947 => '\\ensuremath\{\\gamma\}',
499: 'gamma' => '\\ensuremath\{\\gamma\}',
500: 948 => '\\ensuremath\{\\delta\}',
501: 'delta' => '\\ensuremath\{\\delta\}',
502: 949 => '\\ensuremath\{\\epsilon\}',
503: 'epsilon'=> '\\ensuremath\{\\epsilon\}',
504: 950 => '\\ensuremath\{\\zeta\}',
505: 'zeta' => '\\ensuremath\{\\zeta\}',
506: 951 => '\\ensuremath\{\\eta\}',
507: 'eta' => '\\ensuremath\{\\eta\}',
1.2 foxr 508: 952 => '\\ensuremath\{\\theta\}',
509: 'theta' => '\\ensuremath\{\\theta\}',
510: 953 => '\\ensuremath\{\\iota\}',
511: 'iota' => '\\ensuremath\{\\iota\}',
512: 954 => '\\ensuremath\{\\kappa\}',
513: 'kappa' => '\\ensuremath\{\\kappa\}',
514: 955 => '\\ensuremath\{\\lambda\}',
515: 'lambda' => '\\ensuremath\{\\lambda\}',
516: 956 => '\\ensuremath\{\\mu\}',
517: 'mu' => '\\ensuremath\{\\mu\}',
518: 957 => '\\ensuremath\{\\nu\}',
519: 'nu' => '\\ensuremath\{\\nu\}',
520: 958 => '\\ensuremath\{\\xi\}',
521: 'xi' => '\\ensuremath\{\\xi\}',
522: 959 => '\\ensuremath\{o\}',
523: 'omicron'=> '\\ensuremath\{o\}',
524: 960 => '\\ensuremath\{\\pi\}',
525: 'pi' => '\\ensuremath\{\\pi\}',
526: 961 => '\\ensuremath\{\\rho\}',
527: 'rho' => '\\ensuremath\{\\rho\}',
528: 962 => '\\ensuremath\{\\varsigma\}',
529: 'sigmaf' => '\\ensuremath\{\\varsigma\}',
530: 963 => '\\ensuremath\{\\sigma\}',
531: 'sigma' => '\\ensuremath\{\\sigma\}',
532: 964 => '\\ensuremath\{\\tau\}',
533: 'tau' => '\\ensuremath\{\\tau\}',
534: 965 => '\\ensuremath\{\\upsilon\}',
535: 'upsilon'=> '\\ensuremath\{\\upsilon\}',
536: 966 => '\\ensuremath\{\\phi\}',
537: 'phi' => '\\ensuremath\{\\phi\}',
538: 967 => '\\ensuremath\{\\chi\}',
539: 'chi' => '\\ensuremath\{\\chi\}',
540: 968 => '\\ensuremath\{\\psi\}',
541: 'psi' => '\\ensuremath\{\\psi\}',
542: 969 => '\\ensuremath\{\\omega\}',
543: 'omega' => '\\ensuremath\{\\omega\}',
544: 977 => '\\ensuremath\{\\vartheta\}',
545: 'thetasym'=>'\\ensuremath\{\\vartheta\}',
546: 978 => '\\ensuremath\{\\varUpsilon\}',
547: 'upsih' => '\\ensuremath\{\\varUpsilon\}',
548: 982 => '\\ensuremath\{\\varpi\}',
549: 'piv' => '\\ensuremath\{\\varpi\}',
550:
551:
552: # The general punctuation set:
553:
554: 8194, => '\\hspace{.5em}',
555: 'enspc' => '\\hspace{.5em}',
556: 8195 => '\\hspace{1.0em}',
557: 'emspc' => '\\hspace{1.0em}',
558: 8201 => '\\hspace{0.167em}',
559: 'thinsp' => '\\hspace{0.167em}',
560: 8204 => '\{\}',
561: 'zwnj' => '\{\}',
562: 8205 => '',
563: 'zwj' => '',
564: 8206 => '',
565: 'lrm' => '',
566: 8207 => '',
567: 'rlm' => '',
568: 8211 => '--',
569: 'ndash' => '--',
570: 8212 => '---',
571: 'mdash' => '---',
572: 8216 => '`',
573: 'lsquo' => '`',
574: 8217 => "'",
575: 'rsquo' => "'",
576: 8218 => '\\quotesinglebase',
577: 'sbquo' => '\\quotesinglebase',
578: 8220 => '``',
579: 'ldquo' => '``',
580: 8221 => "''",
581: 'rdquo' => "''",
582: 8222 => '\\quotedblbase',
583: 'bdquo' => '\\quotedblbase',
584: 8224 => '\\dagger',
585: 'dagger' => '\\dagger',
586: '8225' => '\\ddag',
587: 'Dagger' => '\\ddag',
588: 8226 => '\\textbullet',
589: 'bull' => '\\textbullet',
590: 8230 => '\\textellipsis',
591: 'hellep' => '\\textellipsis',
592: 8240 => '\\textperthousand',
593: permil => '\\textperthousand',
594: 8242 => '\\textquotesingle',
595: 'prime' => '\\textquotesingle',
596: 8243 => '\\textquotedbl',
597: 'Prime' => '\\textquotedbl',
598: 8249 => '\\guilsingleleft',
599: 'lsaquo' => '\\guilsingleleft',
600: 8250 => '\\guilsingleright',
601: 'rsaquo' => '\\guilsingleright',
602: 8254 => '\\textasciimacron',
603: oline => '\\textasciimacron',
604: 8260 => '\\textfractionsolidus',
605: 'frasl' => '\\textfractionsolidus',
606: 8364 => '\\texteuro',
607: 'euro' => '\\texteuro',
608:
609: # Letter like symbols
610:
611:
612: 8472 => '\\ensuremath\{\\wp\}',
613: 'weierp' => '\\ensuremath\{\\wp\}',
614: 8465 => '\\ensuremath\{\\Im\}',
615: 'image' => '\\ensuremath\{\\Im\}',
616: 8476 => '\\ensuremath{\\Re\}',
617: 'real' => '\\ensuremath{\\Re\}',
618: 8482 => '\\texttrademark',
619: 'trade' => '\\texttrademark',
620: 8501 => '\\ensuremath{\\aleph\}',
621: 'alefsym'=> '\\ensuremath{\\aleph\}',
622:
623: # Arrows and then some (harpoons from Hon Kie).
624:
625: 8592 => '\\textleftarrow',
626: 'larr' => '\\textleftarrow',
627: 8593 => '\\textuparrow',
628: 'uarr' => '\\textuparrow',
629: 8594 => '\\textrightarrow',
630: 'rarr' => '\\textrightarrow',
631: 8595 => '\\textdownarrow',
632: 'darr' => '\\textdownarrow',
633: 8596 => '\\ensuremath\{\\leftrightarrow\}',
634: 'harr' => '\\ensuremath\{\\leftrightarrow\}',
635: 8598 => '\\ensuremath\{\\nwarrow\}',
636: 8599 => '\\ensuremath\{\\nearrow\}',
637: 8600 => '\\ensuremath\{\\searrow\}',
638: 8601 => '\\ensuremath\{\\swarrow\}',
639: 8605 => '\\ensuremath\{\\leadsto\}',
640: 8614 => '\\ensuremath\{\\mapsto\}',
641: 8617 => '\\ensuremath\{\\hookleftarrow\}',
642: 8618 => '\\ensuremath\{\\hookrightarrow\}',
643: 8629 => '\\ensuremath\{\\hookleftarrow\}', # not an exact match but best I know.
644: 'crarr' => '\\ensuremath\{\\hookleftarrow\}', # not an exact match but best I know.
645: 8636 => '\\ensuremath\{\\leftharpoonup\}',
646: 8637 => '\\ensuremath\{\\leftharpoondown\}',
647: 8640 => '\\ensuremath\{\\rightharpoonup\}',
648: 8641 => '\\ensuremath\{\\rightharpoondown\}',
649: 8652 => '\\ensuremath\{\\rightleftharpoons\}',
650: 8656 => '\\ensuremath\{\\Leftarrow\}',
651: 'lArr' => '\\ensuremath\{\\Leftarrow\}',
652: 8657 => '\\ensuremath\{\\Uparrow\}',
653: 'uArr' => '\\ensuremath\{\\Uparrow\}',
654: 8658 => '\\ensuremath\{\\Rightarrow\}',
655: 'rArr' => '\\ensuremath\{\\Rightarrow\}',
656: 8659 => '\\ensuremath\{\\Downarrow\}',
657: 'dArr' => '\\ensuremath\{\\Downarrow\}',
658: 8660 => '\\ensuremath\{\\Leftrightarrow\}',
1.3 foxr 659: 'vArr' => '\\ensuremath\{\\Updownarrow\}',
660: 8661 => '\\ensuremath\{\\Updownarrow\}',
661: 'lAarr' => '\\ensuremath\{\\Lleftarrow\}',
662: 8666 => '\\ensuremath\{\\Lleftarrow\}',
663: 'rAarr' => '\\ensuremath\{\\Rrightarrow\}',
664: 8667 => '\\ensuremath\{\\Rrightarrow\}',
665: 'rarrw' => '\\ensuremath\{\\rightsquigarrow\}',
666: 8669 => '\\ensuremath\{\\rightsquigarrow\}',
667:
1.1 foxr 668:
1.2 foxr 669: # Mathematical operators.
670:
1.1 foxr 671:
1.3 foxr 672: 'forall' => '\\ensuremath\{\\forall\}',
673: 8704 => '\\ensuremath\{\\forall\}',
674: 'comp' => '\\ensuremath\{\\complement\}',
675: 8705 => '\\ensuremath\{\\complement\}',
676: 'part' => '\\ensuremath\{\\partial\}',
677: 8706 => '\\ensuremath\{\\partial\}',
678: 'exist' => '\\ensuremath\{\\exists\}',
679: 8707 => '\\ensuremath\{\\exists\}',
680: 'nexist' => '\\ensuremath\{\\nexists\}',
681: 8708 => '\\ensuremath\{\\nexists\}',
682: 'empty' => '\\ensuremath\{\\emptysset\}',
683: 8709 => '\\ensuremath\{\\emptysset\}',
684: 8710 => '\\ensuremath\{\\Delta\}',
685: 'nabla' => '\\ensuremath\{\\nabla\}',
686: 8711 => '\\ensuremath\{\\nabla\}',
687: 'isin' => '\\ensuremath\{\\in\}',
688: 8712 => '\\ensuremath\{\\in\}',
689: 'notin' => '\\ensuremath\{\\notin\}',
690: 8713 => '\\ensuremath\{\\notin\}',
691: ni => '\\ensuremath\{\\ni\}',
692: 8715 => '\\ensuremath\{\\ni\}',
693: 8716 => '\\ensuremath\{\\not\\ni\}',
694: 'prod' => '\\ensuremath\{\\prod\}',
695: 8719 => '\\ensuremath\{\\prod\}',
696: 8720 => '\\ensuremath\{\\coprod\}',
697: 'sum' => '\\ensuremath\{\\sum\}',
698: 8721 => '\\ensuremath\{\\sum\}',
699: 'minus' => '\\ensuremath\{-\}',
700: 8722 => '\\ensuremath\{-\}',
701: 8723 => '\\ensuremath\{\\mp\}',
702: 8724 => '\\ensuremath\{\\dotplus\}',
703: 8725 => '\\ensuremath\{\\diagup\}',
704: 8726 => '\\ensuremath\{\\smallsetminus\}',
705: 'lowast' => '\\ensuremath\{*\}',
706: 8727 => '\\ensuremath\{*\}',
707: 8728 => '\\ensuremath\{\\circ\}',
708: 8729 => '\\ensuremath\{\\bullet\}',
709: 'radic' => '\\ensuremath\{\\surd\}',
710: 8730 => '\\ensuremath\{\\surd\}',
711: 8731 => '\\ensuremath\{\\sqrt[3]\{\}\}',
712: 8732 => '\\ensuremath\{\\sqrt[4]\{\}\}',
713: 'prop' => '\\ensuremath\{\\propto\}',
714: 8733 => '\\ensuremath\{\\propto\}',
715: 'infin' => '\\ensuremath\{\\infty\}',
716: 8734 => '\\ensuremath\{\\infty\}',
717: 'ang90' => '\\ensuremath\{\\sqangle\}',
718: 8735 => '\\ensuremath\{\\sqangle\}',
719: 'ang' => '\\ensuremath\{\\angle\}',
720: 8736 => '\\ensuremath\{\\angle\}',
721: 'angmsd' => '\\ensuremath\{\\measuredangle\}',
722: 8737 => '\\ensuremath\{\\measuredangle\}',
723: 'angsph' => '\\ensuremath\{\\sphiericalangle\}',
724: 8738 => '\\ensuremath\{\\sphiericalangle\}',
725: 8739 => '\\ensuremath\{\\vert\}',
726: 8740 => '\\ensuremath\{\\Vert\}',
727: 'and' => '\\ensuremath\{\\land\}',
728: 8743 => '\\ensuremath\{\\land\}',
729: 'or' => '\\ensuremath\{\\lor\}',
730: 8744 => '\\ensuremath\{\\lor\}',
731: 'cap' => '\\ensuremath\{\\cap\}',
732: 8745 => '\\ensuremath\{\\cap\}',
733: 'cup' => '\\ensuremath\{\\cup\}',
734: 8746 => '\\ensuremath\{\\cup\}',
735: 'int' => '\\ensuremath\{\\int\}',
736: 8747 => '\\ensuremath\{\\int\}',
1.4 foxr 737: 'conint' => '\\ensuremath\{\\oint\}',
1.3 foxr 738: 8750 => '\\ensuremath\{\\oint\}',
739: 'there4' => '\\ensuremath\{\\therefore\}',
740: 8756 => '\\ensuremath\{\\therefore\}',
741: 'becaus' => '\\ensuremath\{\\because\}',
742: 8757 => '\\ensuremath\{\\because\}',
743: 8758 => '\\ensuremath\{:\}',
744: 8759 => '\\ensuremath\{::\}',
745: 'sim' => '\\ensuremath\{\\sim\}',
746: 8764 => '\\ensuremath\{\\sim\}',
1.4 foxr 747: 8765 => '\\ensuremath\{\\backsim\}',
748: 'wreath' => '\\ensuremath\{\\wr\}',
749: 8768 => '\\ensuremath\{\\wr\}',
750: 'nsim' => '\\ensuremath\{\\not\sim\}',
751: 8769 => '\\ensuremath\{\\not\sim\}',
752: # 'asymp' => '\\ensuremath\{\\asymp\}', ≈ is actually a different glyph.
753: 8771 => '\\ensuremath\{\\asymp\}',
754: 8772 => '\\ensuremath\{\\not\\asymp\}',
755: 'cong' => '\\ensuremath\{\\cong\}',
756: 8773 => '\\ensuremath\{\\cong\}',
757: 8775 => '\\ensuremath\{\\ncong\}',
758: 8778 => '\\ensuremath\{\\approxeq\}',
759: 8784 => '\\ensuremath\{\\doteq\}',
760: 8785 => '\\ensuremath\{\\doteqdot\}',
761: 8786 => '\\ensuremath\{\\fallingdotseq\}',
762: 8787 => '\\ensuremath\{\\risingdotseq\}',
763: 8788 => '\\ensuremath\{:=\}',
764: 8789 => '\\ensuremath\{=:\}',
765: 8790 => '\\ensuremath\{\\eqcirc\}',
766: 8791 => '\\ensuremath\{\\circeq\}',
767: 'wedgeq' => '\\ensuremath\{\\stackrel\{\\wedge\}\{=\}\}',
768: 8792 => '\\ensuremath\{\\stackrel\{\\wedge\}\{=\}\}',
769: 8794 => '\\ensuremath\{\\stackrel\{\\vee\}\{=\}\}',
770: 8795 => '\\ensuremath\{\\stackrel\{\\star}\{=\}\}',
771: 8796 => '\\ensuremath\{\\triangleeq\}',
772: 8797 => '\\ensuremath\{\\stackrel\{def\}\{=\}\}',
773: 8798 => '\\ensuremath\{\\stackrel\{m\}\{=\}\}',
774: 8799 => '\\ensuremath\{\\stackrel\{?\}\{=\}\}',
775: 'ne' => '\\ensuremath\{\\neq\}',
776: 8800 => '\\ensuremath\{\\neq\}',
777: 'equiv' => '\\ensuremath\{\\equiv\}',
778: 8801 => '\\ensuremath\{\\equiv\}',
779: 8802 => '\\ensuremath\{\\not\\equiv\}',
780: 'le' => '\\ensuremath\{\\leq\}',
781: 8804 => '\\ensuremath\{\\leq\}',
782: 'ge' => '\\ensuremath\{\\geq\}',
783: 8805 => '\\ensuremath\{\\geq\}',
784: 8806 => '\\ensuremath\{\\leqq\}',
785: 8807 => '\\ensuremath\{\\geqq\}',
786: 8810 => '\\ensuremath\{\\ll\}',
787: 8811 => '\\ensuremath\{\\gg\}',
788: 'twixt' => '\\ensuremath\{\\between\}',
789: 8812 => '\\ensuremath\{\\between\}',
790: 8813 => '\\ensuremath\{\\not\\asymp\}',
791: 8814 => '\\ensuremath\{\\not<\}',
792: 8815 => '\\ensuremath\{\\not>\}',
793: 8816 => '\\ensuremath\{\\not\\leqslant\}',
794: 8817 => '\\ensuremath\{\\not\\geqslant\}',
795: 8818 => '\\ensuremath\{\\lessim\}',
796: 8819 => '\\ensuremath\{\\gtrsim\}',
797: 8820 => '\\ensuremath\{\\stackrel\{<\}\{>\}\}',
798: 8821 => '\\ensuremath\{\\stackrel\{>\}\{<\}\}',
799: 8826 => '\\ensuremath\{\\prec\}',
800: 8827 => '\\ensuremath\{\\succ\}',
801: 8828 => '\\ensuremath\{\\preceq\}',
802: 8829 => '\\ensuremath\{\\succeq\}',
803: 8830 => '\\ensuremath\{\\not\\prec\}',
804: 8831 => '\\ensuremath\{\\not\\succ\}',
805: 'sub' => '\\ensuremath\{\\subset\}',
806: 8834 => '\\ensuremath\{\\subset\}',
807: 'sup' => '\\ensuremath\{\\supset\}',
808: 8835 => '\\ensuremath\{\\supset\}',
809: 'nsub' => '\\ensuremath\{\\not\\subset\}',
810: 8836 => '\\ensuremath\{\\not\\subset\}',
811: 8837 => '\\ensuremath\{\\not\\supset\}',
812: 'sube' => '\\ensuremath\{\\subseteq\}',
813: 8838 => '\\ensuremath\{\\subseteq\}',
814: 'supe' => '\\ensuermath\{\\supseteq\}',
815: 8839 => '\\ensuermath\{\\supseteq\}',
816: 8840 => '\\ensuremath\{\\nsubseteq\}',
817: 8841 => '\\ensuremath\{\\nsupseteq\}',
818: 8842 => '\\ensuremath\{\\subsetneq\}',
819: 8843 => '\\ensuremath\{\\supsetneq\}',
820: 8847 => '\\ensuremath\{\\sqsubset\}',
821: 8848 => '\\ensuremath\{\\sqsupset\}',
822: 8849 => '\\ensuremath\{\\sqsubseteq\}',
823: 8850 => '\\ensuremath\{\\sqsupseteq\}',
824: 8851 => '\\ensuremath\{\\sqcap\}',
825: 8852 => '\\ensuremath\{\\sqcup\}',
826: 'oplus' => '\\ensuremath\{\\oplus\}',
827: 8853 => '\\ensuremath\{\\oplus\}',
828: 8854 => '\\ensuremath\{\\ominus\}',
829: 'otimes' => '\\ensuremath\{\\otimes\}',
830: 8855 => '\\ensuremath\{\\otimes\}',
831: 8856 => '\\ensuremath\{\\oslash\}',
832: 8857 => '\\ensuremath\{\\odot\}',
833: 8858 => '\\ensuremath\{\\circledcirc\}',
834: 8859 => '\\ensuremath\{\\circledast\}',
835: 8861 => '\\ensuremath\{\\ominus\}', # Close enough for government work.
836: 8862 => '\\ensuremath\{\\boxplus\}',
837: 8863 => '\\ensuremath\{\\boxminus\}',
838: 8864 => '\\ensuremath\{\\boxtimes\}',
839: 8865 => '\\ensuremath\{\\boxdot\}',
1.5 ! foxr 840: 'vdash' => '\\ensuremath\{\\vdash\}',
! 841: 8866 => '\\ensuremath\{\\vdash\}',
! 842: 'dashv' => '\\ensuremath\{\\dashv\}',
! 843: 8867 => '\\ensuremath\{\\dashv\}',
! 844: 'perp' => '\\ensuremath\{\\perp\}',
! 845: 8869 => '\\ensuremath\{\\perp\}',
! 846: 8871 => '\\ensuremath\{\\models\}',
! 847: 8872 => '\\ensuremath\{\\vDash\}',
! 848: 8873 => '\\ensuremath\{\\Vdash\}',
! 849: 8874 => '\\ensuremath\{\\Vvdash\}',
! 850: 8876 => '\\ensuremath\{\\nvdash\}',
! 851: 8877 => '\\ensuremath\{\\nvDash\}',
! 852: 8878 => '\\ensuremath\{\\nVdash\}',
! 853: 8880 => '\\ensuremath\{\\prec\}',
! 854: 8881 => '\\ensuremath\{\\succ\}',
! 855: 8882 => '\\ensuremath\{\\vartriangleleft\}',
! 856: 8883 => '\\ensuremath\{\\vartriangleright\}',
! 857: 8884 => '\\ensuremath\{\\trianglelefteq\}',
! 858: 8885 => '\\ensuremath\{\\trianglerighteq\}',
! 859: 8891 => '\\ensuremath\{\\veebar\}',
! 860: 8896 => '\\ensuremath\{\\land\}',
! 861: 8897 => '\\ensuremath\{\\lor\}',
! 862: 8898 => '\\ensuremath\{\\cap\}',
! 863: 8899 => '\\ensuremath\{\\cup\}',
! 864: 8900 => '\\ensuremath\{\\diamond\}',
! 865: 'sdot' => '\\ensuremath\{\\cdot\}',
! 866: 8901 => '\\ensuremath\{\\cdot\}',
! 867: 8902 => '\\ensuremath\{\\star\}',
! 868: 8903 => '\\ensuremath\{\\divideontimes\}',
! 869: 8904 => '\\ensuremath\{\\bowtie\}',
! 870: 8905 => '\\ensuremath\{\\ltimes\}',
! 871: 8906 => '\\ensuremath\{\\rtimes\}',
! 872: 8907 => '\\ensuremath\{\\leftthreetimes\}',
! 873: 8908 => '\\ensuremath\{\\rightthreetimes\}',
! 874: 8909 => '\\ensuremath\{\\simeq\}',
! 875: 8910 => '\\ensuremath\{\\curlyvee\}',
! 876: 8911 => '\\ensuremath\{\\curlywedge\}',
! 877: 8912 => '\\ensuremath\{\\Subset\}',
! 878: 8913 => '\\ensuremath\{\\Supset\}',
! 879: 8914 => '\\ensuremath\{\\Cap\}',
! 880: 8915 => '\\ensuremath\{\\Cup\}',
! 881: 8916 => '\\ensuremath\{\\pitchfork\}',
! 882: 8918 => '\\ensuremath\{\\lessdot\}',
! 883: 8919 => '\\ensuremath\{\\gtrdot\}',
! 884: 8920 => '\\ensuremath\{\\lll\}',
! 885: 8921 => '\\ensuremath\{\\ggg\}',
! 886: 8922 => '\\ensuremath\{\\gtreqless\}',
! 887: 8923 => '\\ensuremath\{\\lesseqgtr\}',
! 888: 8924 => '\\ensuremath\{\\eqslantless\}',
! 889: 8925 => '\\ensuremath\{\\eqslantgtr\}',
! 890: 8926 => '\\ensuremath\{\\curlyeqprec\}',
! 891: 8927 => '\\ensuremath\{\\curlyeqsucc\}',
! 892: 8928 => '\\ensuremath\{\\not\\preccurlyeq\}',
! 893: 8929 => '\\ensuremath\{\\not\\succurlyeq\}',
! 894: 8930 => '\\ensuremath\{\\not\\sqsupseteq\}',
! 895: 8931 => '\\ensuremath\{\\not\\sqsubseteq\}',
! 896: 8938 => '\\ensuremath\{\\not\\vartriangleleft\}',
! 897: 8939 => '\\ensuremath\{\\not\vartriangleright\}',
! 898: 8940 => '\\ensuremath\{\\not\trianglelefteq\}',
! 899: 8941 => '\\ensuremath\{\\not\trianglerighteq\}',
! 900: 8942 => '\\ensuremath\{\\vdots\}',
! 901: 8960 => '\\ensuremath\{\\varnothing\}',
! 902: 'lceil' => '\\ensuremath\{\\lceil\}',
! 903: 8968 => '\\ensuremath\{\\lceil\}',
! 904: 'rceil' => '\\ensuremath\{\\rceil\}',
! 905: 8969 => '\\ensuremath\{\\rceil\}',
! 906: 'lfloor' => '\\ensuremath\{\\lfloor\}',
! 907: 8970 => '\\ensuremath\{\\lfloor\}',
! 908: 'rfloor' => '\\ensuremath\{\\rfloor}',
! 909: 8971 => '\\ensuremath\{\\rfloor}',
! 910: 'lang' => '\\ensuremath\{\\langle\}',
! 911: 9001 => '\\ensuremath\{\\langle\}',
! 912: 'rang' => '\\ensuremath\{\\rangle\}',
! 913: 9002 => '\\ensuremath\{\\rangle\}',
! 914: 'loz' => '\\ensuremath\{\\lozenge\}',
! 915: 9674 => '\\ensuremath\{\\lozenge\}',
! 916: 'spades' => '\\ensuremath\{\\spadesuit\}',
! 917: 9824 => '\\ensuremath\{\\spadesuit\}',
! 918: 9825 => '\\ensuremath\{\\heartsuit\}',
! 919: 9826 => '\\ensuremath\{\\diamondsuit\}',
! 920: 'clubs' => '\\ensuremath\{\\clubsuit\}',
! 921: 9827 => '\\ensuremath\{\\clubsuit\}',
! 922: 'diams' => '\\ensuremath\{\\blacklozenge\}',
! 923: 9830 => '\\ensuremath\{\\blacklozenge\}'
1.3 foxr 924:
1.4 foxr 925: };
1.3 foxr 926:
1.4 foxr 927: #
928: # Convert a numerical entity (that does not exist in our hash)
929: # to its UTF-8 equivalent representation.
930: # This allows us to support, to some extent, any entity for which
931: # dvipdf can find a gylph (given that LaTeX is now UTF-8 clean).
932: #
1.5 ! foxr 933: # Parameters:
! 934: # unicode - The unicode for the character. This is assumed to
! 935: # be a decimal value
! 936: # Returns:
! 937: # The UTF-8 equiavalent of the value.
! 938: #
1.4 foxr 939: sub entity_to_utf8 {
1.5 ! foxr 940: my ($unicode) = @_;
! 941:
! 942: return pack("U", $unicode);
1.4 foxr 943: }
944:
945:
946: #
947: # Convert an entity to the corresponding LateX if possible.
948: # If not possible, and the entity is numeric,
949: # the entity is treated like a Unicode character and converted
950: # to UTF-8 which should display as long as dvipdf can find the
951: # appropriate glyph.
952: #
1.5 ! foxr 953: # The entity is assumed to have already had the
! 954: # &# ; or & ; removed
! 955: #
! 956: # Parameters:
! 957: # entity - Name of entity to convert.
! 958: # Returns:
! 959: # One of the following:
! 960: # - Latex string that produces the entity.
! 961: # - UTF-8 equivalent of a numeric entity for which we don't have a latex string.
! 962: # - ' ' for text entities for which there's no latex equivalent.
! 963: #
1.4 foxr 964: sub entity_to_latex {
1.5 ! foxr 965: my ($entity) = @_;
! 966:
! 967: # Try to look up the entity (text or numeric) in the hash:
! 968:
! 969: my $latex = $entities{$entity};
! 970: if ($latex) {
! 971: return $latex;
! 972: }
! 973: # If the text is purely numeric we can do the UTF-8 conversion:
! 974:
! 975: if ($entity =~ /^\d$/) {
! 976: return &entity_to_utf8($entity);
! 977: }
! 978: # Can't do the conversion ...
! 979:
! 980: return " ";
! 981: }
! 982:
! 983: #
! 984: # Convert all the entities in a string.
! 985: # We locate all the entities, pass them into entity_to_latex and
! 986: # and replace occurences in the input string.
! 987: # The assumption is that there are few entities in any string/document
! 988: # so this looping is not too bad. The advantage of looping vs. regexping is
! 989: # that we now can use lookup tables for the translation in entity_to_latex above.
! 990: #
! 991: # Parameters:
! 992: # input - Input string/document
! 993: # Returns
! 994: # input with entities replaced by latexable stuff (UTF-8 encodings or
! 995: # latex control strings to produce the entity.
! 996: #
! 997: #
! 998: sub replace_entities {
! 999: my ($input) = @_;
1.4 foxr 1000: }
1.3 foxr 1001:
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