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|
/*
* latex.c
*
* convert between latex special chars and unicode
*
* Copyright (c) Chris Putnam 2004-2021
*
* Source code released under the GPL version 2
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "latex.h"
#define LATEX_COMBO (0) /* 'combo' no need for protection on output */
#define LATEX_MACRO (1) /* 'macro_name' to be protected by {\macro_name} on output */
#define LATEX_MATH (2) /* 'math_expression' to be protected by $math_expression$ on output */
#define NUM_VARIANTS (2)
#define ENTRY(a) { (a), (sizeof(a)/sizeof(char))-1 }
#define EMPTY { NULL, 0 }
#define COMBO2(a,b,c,d) { (a), LATEX_COMBO, (b), { ENTRY(c), ENTRY(d) } }
#define COMBO1(a,b,c) { (a), LATEX_COMBO, (b), { ENTRY(c), EMPTY } }
#define MACRO2(a,b,c,d) { (a), LATEX_MACRO, (b), { ENTRY(c), ENTRY(d) } }
#define MACRO1(a,b,c) { (a), LATEX_MACRO, (b), { ENTRY(c), EMPTY } }
#define MATH2(a,b,c,d) { (a), LATEX_MATH, (b), { ENTRY(c), ENTRY(d) } }
#define MATH1(a,b,c) { (a), LATEX_MATH, (b), { ENTRY(c), EMPTY } }
struct latex_entry {
char *entry;
int length;
};
struct latex_chars {
unsigned int unicode; /* unicode code point */
unsigned char type; /* LATEX_COMBO/LATEX_MACRO/LATEX_MATH */
char *out; /* unadorned latex combination for output */
struct latex_entry variant[NUM_VARIANTS]; /* possible variations on input */
};
static struct latex_chars latex_chars[] = {
MACRO1( 192, "`A", "\\`A" ), /* Latin Capital A with grave */
MACRO1( 224, "`a", "\\`a" ), /* Latin Small a with grave */
MACRO1( 193, "'A", "\\'A" ), /* Latin Capital A with acute */
MACRO1( 225, "'a", "\\'a" ), /* Latin Small a with acute */
MACRO1( 194, "^A", "\\^A" ), /* Latin Capital A with circumflex */
MACRO1( 226, "^a", "\\^a" ), /* Latin Small a with circumflex */
MACRO1( 195, "~A", "\\~A" ), /* Latin Capital A with tilde */
MACRO1( 227, "~a", "\\~a" ), /* Latin Small a with tilde */
MACRO1( 196, "\"A", "\\\"A" ), /* Latin Capital A with diuresis */
MACRO1( 228, "\"a", "\\\"a" ), /* Latin Small a with diuresis */
MACRO1( 197, "AA", "\\AA" ), /* Latin Capital A with ring above */
MACRO2( 197, "AA", "\\r A", "\\rA" ), /* Latin Capital A with ring above */
MACRO1( 229, "aa", "\\aa" ), /* Latin Small a with ring above */
MACRO2( 229, "aa", "\\r a", "\\ra" ), /* Latin Small a with ring above */
MACRO1( 256, "={A}", "\\=A" ), /* Latin Capital A with macron */
MACRO1( 257, "={a}", "\\=a" ), /* Latin Small a with macron */
MACRO2( 258, "u{A}", "\\u A", "\\uA" ), /* Latin Capital A with breve */
MACRO2( 259, "u{a}", "\\u a", "\\ua" ), /* Latin Small a with breve */
MACRO2( 260, "k{A}", "\\k A", "\\kA" ), /* Latin Capital A with ogonek */
MACRO2( 261, "k{a}", "\\k a", "\\ka" ), /* Latin Small a with ogonek */
MACRO2( 461, "v{A}", "\\v A", "\\vA" ), /* Latin Capital A with caron */
MACRO2( 462, "v{a}", "\\v a", "\\va" ), /* Latin Small a with caron */
MACRO1( 198, "AE", "\\AE" ), /* Latin Capital AE Ligature */
MACRO1( 230, "ae", "\\ae" ), /* Latin Small ae Ligature */
MACRO2( 199, "c{C}", "\\c C", "\\cC" ), /* Latin Capital C with cedilla */
MACRO2( 231, "c{c}", "\\c c", "\\cc" ), /* Latin Small c with cedilla */
MACRO2( 199, "k{C}", "\\k C", "\\kC" ), /* Latin Capital C with cedilla (actually ogonek) */
MACRO2( 231, "k{c}", "\\k c", "\\kc" ), /* Latin Small c with cedilla (actually ogonek) */
MACRO1( 262, "'{C}", "\\'C" ), /* Latin Capital C with acute */
MACRO1( 263, "'{c}", "\\'c" ), /* Latin Small c with acute */
MACRO1( 264, "^{C}", "\\^C" ), /* Latin Capital C with circumflex */
MACRO1( 265, "^{c}", "\\^c" ), /* Latin Small c with circumflex */
MACRO1( 266, ".{C}", "\\.C" ), /* Latin Capital C with dot above */
MACRO1( 267, ".{c}", "\\.c" ), /* Latin Small c with dot above */
MACRO2( 268, "v{C}", "\\v C", "\\vC" ), /* Latin Capital C with caron (hacek) */
MACRO2( 269, "v{c}", "\\v c", "\\vc" ), /* Latin Small c with caron (hacek) */
MACRO2( 270, "v{D}", "\\v D", "\\vD" ), /* Latin Capital D with caron */
MACRO2( 271, "v{d}", "\\v d", "\\vd" ), /* Latin Small d with caron */
MACRO1( 272, "DJ", "\\DJ" ), /* Latin Capital D with stroke */
MACRO1( 273, "dj", "\\dj" ), /* Latin Small d with stroke */
MACRO1( 200, "`E", "\\`E" ), /* Latin Capital E with grave */
MACRO1( 232, "`e", "\\`e" ), /* Latin Small e with grave */
MACRO1( 201, "'E", "\\'E" ), /* Latin Capital E with acute */
MACRO1( 233, "'e", "\\'e" ), /* Latin Small e with acute */
MACRO1( 202, "^E", "\\^E" ), /* Latin Capital E with circumflex */
MACRO1( 234, "^e", "\\^e" ), /* Latin Small e with circumflex */
MACRO1( 203, "\"E", "\\\"E" ), /* Latin Capital E with diuresis */
MACRO1( 235, "\"e", "\\\"e" ), /* Latin Small e with diuresis */
MACRO1( 274, "={E}", "\\=E" ), /* Latin Capital E with macron */
MACRO1( 275, "={e}", "\\=e" ), /* Latin Small e with macron */
MACRO2( 276, "u{E}", "\\u E", "\\uE" ), /* Latin Capital E with breve */
MACRO2( 277, "u{e}", "\\u e", "\\ue" ), /* Latin Small e with breve */
MACRO1( 278, ".{E}", "\\.E" ), /* Latin Capital E with dot above */
MACRO1( 279, ".{e}", "\\.e" ), /* Latin Small e with dot above */
MACRO2( 280, "k{E}", "\\k E", "\\kE" ), /* Latin Capital E with ogonek */
MACRO2( 281, "k{e}", "\\k e", "\\ke" ), /* Latin Small e with ogonek */
MACRO2( 282, "v{E}", "\\v E", "\\vE" ), /* Latin Capital E with caron */
MACRO2( 283, "v{e}", "\\v e", "\\ve" ), /* Latin Small e with caron */
MACRO1( 284, "^{G}", "\\^G" ), /* Latin Capital G with circumflex */
MACRO1( 285, "^{g}", "\\^g" ), /* Latin Small g with circumflex */
MACRO2( 286, "u{G}", "\\u G", "\\uG" ), /* Latin Capital G with breve */
MACRO2( 287, "u{g}", "\\u g", "\\ug" ), /* Latin Small g with breve */
MACRO1( 288, ".{G}", "\\.G" ), /* Latin Capital G with dot above */
MACRO1( 289, ".{g}", "\\.g" ), /* Latin Small g with dot above */
MACRO2( 290, "c{G}", "\\c G", "\\cG" ), /* Latin Capital G with cedilla */
MACRO2( 291, "c{g}", "\\c g", "\\cg" ), /* Latin Small g with cedilla */
MACRO2( 486, "v{G}", "\\v G", "\\vG" ), /* Latin Capital G with caron */
MACRO2( 487, "v{g}", "\\v g", "\\vg" ), /* Latin Small g with caron */
MACRO1( 500, "'{G}", "\\'G" ), /* Latin Capital G with acute */
MACRO1( 501, "'{g}", "\\'g" ), /* Latin Small g with acute */
MACRO1( 292, "^{H}", "\\^H" ), /* Latin Capital H with circumflex */
MACRO1( 293, "^{h}", "\\^h" ), /* Latin Small h with circumflex */
MACRO1( 204, "`I", "\\`I" ), /* Latin Capital I with grave */
MACRO2( 236, "`{\\i}", "\\`\\i", "\\`i" ), /* Latin Small i with grave */
MACRO1( 205, "'I", "\\'I" ), /* Latin Capital I with acute */
MACRO2( 237, "'{\\i}", "\\'\\i", "\\'i" ), /* Latin Small i with acute */
MACRO1( 206, "^I", "\\^I" ), /* Latin Capital I with circumflex */
MACRO2( 238, "^{\\i}", "\\^\\i", "\\^i" ), /* Latin Small i with circumflex */
MACRO1( 207, "\"I", "\\\"I" ), /* Latin Capital I with diuresis */
MACRO2( 239, "\"{\\i}", "\\\"\\i", "\\\"i" ), /* Latin Small i with diuresis */
MACRO1( 296, "~{I}", "\\~I" ), /* Latin Capital I with tilde */
MACRO2( 297, "`{\\i}", "\\~\\i", "\\~i" ), /* Latin Small i with tilde */
MACRO1( 298, "={I}", "\\=I" ), /* Latin Capital I with macron */
MACRO2( 299, "={\\i}", "\\=\\i", "\\=i" ), /* Latin Small i with macron */
MACRO2( 300, "u{I}", "\\u I", "\\uI" ), /* Latin Capital I with breve */
MACRO2( 301, "u{\\i}", "\\u\\i", "\\ui" ), /* Latin Small i with breve */
MACRO2( 302, "k{I}", "\\k I", "\\kI" ), /* Latin Capital I with ogonek */
MACRO2( 303, "k{i}", "\\k i", "\\ki" ), /* Latin Small i with ogonek */
MACRO1( 304, ".{I}", "\\.I" ), /* Latin Capital I with dot above */
MACRO1( 305, "i", "\\i" ), /* Latin Small i without dot above */
MACRO2( 463, "v{I}", "\\v I", "\\vI" ), /* Latin Capital I with caron */
MACRO2( 464, "v{\\i}", "\\v\\i", "\\vi" ), /* Latin Small i with caron */
MACRO1( 308, "^{J}", "\\^J" ), /* Latin Capital J with circumflex */
MACRO1( 309, "^{j}", "\\^j" ), /* Latin Small j with circumflex */
MACRO2( 310, "c{K}", "\\c K", "\\cK" ), /* Latin Capital K with cedilla */
MACRO2( 311, "c{k}", "\\c k", "\\ck" ), /* Latin Small k with cedilla */
MACRO2( 488, "v{K}", "\\v K", "\\vK" ), /* Latin Capital K with caron */
MACRO2( 489, "v{k}", "\\v k", "\\vk" ), /* Latin Small k with caron */
MACRO1( 313, "'{L}", "\\'L" ), /* Latin Capital L with acute */
MACRO1( 314, "'{l}", "\\'l" ), /* Latin Small l with acute */
MACRO2( 315, "c{L}", "\\c L", "\\cL" ), /* Latin Capital L with cedilla */
MACRO2( 316, "c{l}", "\\c l", "\\cl" ), /* Latin Small l with cedilla */
MACRO2( 317, "v{L}", "\\v L", "\\vL" ), /* Latin Capital L with caron */
MACRO2( 318, "v{l}", "\\v l", "\\vl" ), /* Latin Small l with caron */
MACRO1( 319, "{L\\hspace{-0.35em}$\\cdot$}", "L\\hspace-0.35em\\cdot" ), /* Latin Capital L with middle dot */
MACRO1( 320, "{l$\\cdot$}", "l\\cdot" ), /* Latin Small l with middle dot */
MACRO1( 321, "L", "\\L" ), /* Latin Capital L with stroke */
MACRO1( 322, "l", "\\l" ), /* Latin Small l with stroke */
MACRO1( 209, "~{N}", "\\~N" ), /* Latin Capital N with tilde */
MACRO1( 241, "~{n}", "\\~n" ), /* Latin Small n with tilde */
MACRO1( 323, "'{N}", "\\'N" ), /* Latin Capital N with acute */
MACRO1( 324, "'{n}", "\\'n" ), /* Latin Small n with acute */
MACRO2( 325, "c{N}", "\\c N", "\\cN" ), /* Latin Capital N with cedilla */
MACRO2( 326, "c{n}", "\\c n", "\\cn" ), /* Latin Small n with cedilla */
MACRO2( 327, "v{N}", "\\v N", "\\vN" ), /* Latin Capital N with caron */
MACRO2( 328, "v{n}", "\\v n", "\\vn" ), /* Latin Small n with caron */
MACRO1( 329, "n", "\\n" ), /* Latin Small n preceeded by apostrophe */
MACRO1( 210, "`O", "\\`O" ), /* Latin Capital O with grave */
MACRO1( 242, "`o", "\\`o" ), /* Latin Small o with grave */
MACRO1( 211, "'O", "\\'O" ), /* Latin Capital O with acute */
MACRO1( 243, "'o", "\\'o" ), /* Latin Small o with acute */
MACRO1( 212, "^O", "\\^O" ), /* Latin Capital O with circumflex */
MACRO1( 244, "^o", "\\^o" ), /* Latin Small o with circumflex */
MACRO1( 213, "~O", "\\~O" ), /* Latin Capital O with tilde */
MACRO1( 245, "~o", "\\~o" ), /* Latin Small o with tilde */
MACRO1( 214, "\"O", "\\\"O" ), /* Latin Capital O with diaeresis */
MACRO1( 246, "\"o", "\\\"o" ), /* Latin Small o with diaeresis */
MACRO1( 216, "O", "\\O" ), /* Latin Capital O with stroke */
MACRO1( 248, "o", "\\o" ), /* Latin Small o with stroke */
MACRO1( 332, "={O}", "\\=O" ), /* Latin Capital O with macron */
MACRO1( 333, "={o}", "\\=o" ), /* Latin Small o with macron */
MACRO2( 334, "u{O}", "\\u O", "\\uO" ), /* Latin Capital O with breve */
MACRO2( 335, "u{o}", "\\u o", "\\uo" ), /* Latin Small o with breve */
MACRO2( 336, "H{O}", "\\H O", "\\HO" ), /* Latin Capital O with double acute */
MACRO2( 337, "H{o}", "\\H o", "\\Ho" ), /* Latin Small o with double acute */
MACRO2( 465, "v{O}", "\\v O", "\\vO" ), /* Latin Capital O with caron */
MACRO2( 466, "v{o}", "\\v o", "\\vo" ), /* Latin Small o with caron */
MACRO2( 490, "k{O}", "\\k O", "\\kO" ), /* Latin Capital O with ogonek */
MACRO2( 491, "k{o}", "\\k o", "\\ko" ), /* Latin Small o with ogonek */
MACRO1( 338, "OE", "\\OE" ), /* Latin Capital OE Ligature */
MACRO1( 339, "oe", "\\oe" ), /* Latin Small oe Ligature */
MACRO1( 340, "'R", "\\'R" ), /* Latin Capital R with acute */
MACRO1( 341, "'r", "\\'r" ), /* Latin Small r with acute */
MACRO2( 342, "c{R}", "\\c R", "\\cR" ), /* Latin Capital R with cedilla */
MACRO2( 343, "c{r}", "\\c r", "\\cr" ), /* Latin Small r with cedilla */
MACRO2( 344, "v{R}", "\\v R", "\\vR" ), /* Latin Capital R with caron */
MACRO2( 345, "v{r}", "\\v r", "\\vr" ), /* Latin Small r with caron */
MACRO1( 346, "'{S}", "\\'S" ), /* Latin Capital S with acute */
MACRO1( 347, "'{s}", "\\'s" ), /* Latin Small s with acute */
MACRO1( 348, "^{S}", "\\^S" ), /* Latin Capital S with circumflex */
MACRO1( 349, "^{s}", "\\^s" ), /* Latin Small s with circumflex */
MACRO2( 350, "c{S}", "\\c S", "\\cS" ), /* Latin Capital S with cedilla */
MACRO2( 351, "c{s}", "\\c s", "\\cs" ), /* Latin Small s with cedilla */
MACRO2( 352, "v{S}", "\\v S", "\\vS" ), /* Latin Capital S with caron */
MACRO2( 353, "v{s}", "\\v s", "\\vs" ), /* Latin Small s with caron */
MACRO1( 223, "ss", "\\ss" ), /* German sz Ligature, "sharp s" */
MACRO2( 354, "c{T}", "\\c T", "\\cT" ), /* Latin Capital T with cedilla */
MACRO2( 355, "c{t}", "\\c t", "\\ct" ), /* Latin Small t with cedilla */
MACRO2( 356, "v{T}", "\\v T", "\\vT" ), /* Latin Capital T with caron */
MACRO2( 357, "v{t}", "\\v t", "\\vt" ), /* Latin Small t with caron */
MACRO1( 217, "`U", "\\`U" ), /* Latin Capital U with grave */
MACRO1( 249, "`u", "\\`u" ), /* Latin Small u with grave */
MACRO1( 218, "'U", "\\'U" ), /* Latin Capital U with acute */
MACRO1( 250, "'u", "\\'u" ), /* Latin Small u with acute */
MACRO1( 219, "^U", "\\^U" ), /* Latin Capital U with circumflex */
MACRO1( 251, "^u", "\\^u" ), /* Latin Small u with circumflex */
MACRO1( 220, "\"U", "\\\"U" ), /* Latin Capital U with diaeresis */
MACRO1( 252, "\"u", "\\\"u" ), /* Latin Small u with diaeresis */
MACRO1( 360, "~{U}", "\\~U" ), /* Latin Capital U with tilde */
MACRO1( 361, "~{u}", "\\~u" ), /* Latin Small u with tilde */
MACRO1( 362, "={U}", "\\=U" ), /* Latin Capital U with macron */
MACRO1( 363, "={u}", "\\=u" ), /* Latin Small u with macron */
MACRO2( 364, "u{U}", "\\u U", "\\uU" ), /* Latin Capital U with breve */
MACRO2( 365, "u{u}", "\\u u", "\\uu" ), /* Latin Small u with breve */
MACRO2( 366, "r{U}", "\\r U", "\\rU" ), /* Latin Capital U with ring above */
MACRO2( 367, "r{u}", "\\r u", "\\ru" ), /* Latin Small u with ring above */
MACRO2( 368, "H{U}", "\\H U", "\\HU" ), /* Latin Capital U with double acute */
MACRO2( 369, "H{u}", "\\H u", "\\Hu" ), /* Latin Small u with double acute */
MACRO2( 370, "k{U}", "\\k U", "\\kU" ), /* Latin Capital U with ogonek */
MACRO2( 371, "k{u}", "\\k u", "\\ku" ), /* Latin Small u with ogonek */
MACRO2( 467, "v{U}", "\\v U", "\\vU" ), /* Latin Capital U with caron */
MACRO2( 468, "v{u}", "\\v u", "\\vu" ), /* Latin Small u with caron */
MACRO1( 372, "^{W}", "\\^W" ), /* Latin Capital W with circumflex */
MACRO1( 373, "^{w}", "\\^w" ), /* Latin Small w with circumflex */
MACRO1( 221, "'{Y}", "\\'Y" ), /* Latin Capital Y with acute */
MACRO1( 253, "'y", "\\'y" ), /* Latin Small y with acute */
MACRO1( 374, "^{Y}", "\\^Y" ), /* Latin Capital Y with circumflex */
MACRO1( 375, "^{y}", "\\^y" ), /* Latin Small y with circumflex */
MACRO1( 376, "\"{Y}", "\\\"Y" ), /* Latin Capital Y with diaeresis */
MACRO1( 255, "\"y", "\\\"y" ), /* Latin Small y with diaeresis */
MACRO1( 377, "'{Z}", "\\'Z" ), /* Latin Capital Z with acute */
MACRO1( 378, "'{z}", "\\'z" ), /* Latin Small z with acute */
MACRO1( 379, ".{Z}", "\\.Z" ), /* Latin Capital Z with dot above */
MACRO1( 380, ".{z}", "\\.z" ), /* Latin Small z with dot above */
MACRO2( 381, "v{Z}", "\\v Z", "\\vZ" ), /* Latin Capital Z with caron */
MACRO2( 382, "v{z}", "\\v z", "\\vz" ), /* Latin Small z with caron */
MATH1 ( 8203, "\\null", "\\null" ), /* No space ​ Needs to be before \nu*/
MATH1 ( 913, "\\Alpha", "\\Alpha" ), /*GREEK CAPITAL LETTER ALPHA*/
MATH1 ( 914, "\\Beta", "\\Beta" ), /*GREEK CAPITAL LETTER BETA*/
MATH1 ( 915, "\\Gamma", "\\Gamma" ), /*GREEK CAPITAL LETTER GAMMA*/
MATH1 ( 916, "\\Delta", "\\Delta" ), /*GREEK CAPITAL LETTER DELTA*/
MATH1 ( 917, "\\Epsilon", "\\Epsilon" ), /*GREEK CAPITAL LETTER EPSILON*/
MATH1 ( 918, "\\Zeta", "\\Zeta" ), /*GREEK CAPITAL LETTER ZETA*/
MATH1 ( 919, "\\Eta", "\\Eta" ), /*GREEK CAPITAL LETTER ETA*/
MATH1 ( 920, "\\Theta", "\\Theta" ), /*GREEK CAPITAL LETTER THETA*/
MATH1 ( 921, "\\Iota", "\\Iota" ), /*GREEK CAPITAL LETTER IOTA*/
MATH1 ( 922, "\\Kappa", "\\Kappa" ), /*GREEK CAPITAL LETTER KAPPA*/
MATH1 ( 923, "\\Lambda", "\\Lambda" ), /*GREEK CAPITAL LETTER LAMDA*/
MATH1 ( 924, "\\Mu", "\\Mu" ), /*GREEK CAPITAL LETTER MU*/
MATH1 ( 925, "\\Nu", "\\Nu" ), /*GREEK CAPITAL LETTER NU*/
MATH1 ( 926, "\\Xi", "\\Xi" ), /*GREEK CAPITAL LETTER XI*/
MATH1 ( 927, "\\Omicron", "\\Omicron" ), /*GREEK CAPITAL LETTER OMICRON*/
MATH1 ( 928, "\\Pi", "\\Pi" ), /*GREEK CAPITAL LETTER PI*/
MATH1 ( 929, "\\Rho", "\\Rho" ), /*GREEK CAPITAL LETTER RHO*/
MATH1 ( 931, "\\Sigma", "\\Sigma" ), /*GREEK CAPITAL LETTER SIGMA*/
MATH1 ( 932, "\\Tau", "\\Tau" ), /*GREEK CAPITAL LETTER TAU*/
MATH1 ( 933, "\\Upsilon", "\\Upsilon" ), /*GREEK CAPITAL LETTER UPSILON*/
MATH1 ( 934, "\\Phi", "\\Phi" ), /*GREEK CAPITAL LETTER PHI*/
MATH1 ( 935, "\\Chi", "\\Chi" ), /*GREEK CAPITAL LETTER CHI*/
MATH1 ( 936, "\\Psi", "\\Psi" ), /*GREEK CAPITAL LETTER PSI*/
MATH1 ( 937, "\\Omega", "\\Omega" ), /*GREEK CAPITAL LETTER OMEGA*/
MATH1 ( 945, "\\alpha", "\\alpha" ), /*GREEK SMALL LETTER ALPHA*/
MATH1 ( 946, "\\beta", "\\beta" ), /*GREEK SMALL LETTER BETA*/
MATH1 ( 947, "\\gamma", "\\gamma" ), /*GREEK SMALL LETTER GAMMA*/
MATH1 ( 948, "\\delta", "\\delta" ), /*GREEK SMALL LETTER DELTA*/
MATH1 ( 949, "\\epsilon", "\\epsilon" ), /*GREEK SMALL LETTER EPSILON*/
MATH1 ( 950, "\\zeta", "\\zeta" ), /*GREEK SMALL LETTER ZETA*/
MATH1 ( 951, "\\eta", "\\eta" ), /*GREEK SMALL LETTER ETA*/
MATH1 ( 952, "\\theta", "\\theta" ), /*GREEK SMALL LETTER THETA*/
MATH1 ( 953, "\\iota", "\\iota" ), /*GREEK SMALL LETTER IOTA*/
MATH1 ( 954, "\\kappa", "\\kappa" ), /*GREEK SMALL LETTER KAPPA*/
MATH1 ( 955, "\\lambda", "\\lambda" ), /*GREEK SMALL LETTER LAMDA*/
MATH1 ( 956, "\\mu", "\\mu" ), /*GREEK SMALL LETTER MU*/
MATH1 ( 957, "\\nu", "\\nu" ), /*GREEK SMALL LETTER NU*/
MATH1 ( 958, "\\xi", "\\xi" ), /*GREEK SMALL LETTER XI*/
MATH1 ( 959, "\\omicron", "\\omicron" ), /*GREEK SMALL LETTER OMICRON*/
MATH1 ( 960, "\\pi", "\\pi" ), /*GREEK SMALL LETTER PI*/
MATH1 ( 961, "\\rho", "\\rho" ), /*GREEK SMALL LETTER RHO*/
MATH1 ( 963, "\\sigma", "\\sigma" ), /*GREEK SMALL LETTER SIGMA*/
MATH1 ( 964, "\\tau", "\\tau" ), /*GREEK SMALL LETTER TAU*/
MATH1 ( 965, "\\upsilon", "\\upsilon" ), /*GREEK SMALL LETTER UPSILON*/
MATH1 ( 966, "\\phi", "\\phi" ), /*GREEK SMALL LETTER PHI*/
MATH1 ( 967, "\\chi", "\\chi" ), /*GREEK SMALL LETTER CHI*/
MATH1 ( 968, "\\psi", "\\psi" ), /*GREEK SMALL LETTER PSI*/
MATH1 ( 969, "\\omega", "\\omega" ), /*GREEK SMALL LETTER OMEGA*/
MACRO2( 181, "textmu", "\\textmu", "\\mu" ), /* 181=micro sign, techically µ */
/* Make sure that these don't stomp on other latex things above */
COMBO2( 8212, "---", "---", "\\textemdash" ), /* Em-dash — */
COMBO2( 8211, "--", "--", "\\textendash" ), /* En-dash – */
MACRO2( 8230, "ldots", "\\ldots", "\\textellipsis" ), /* Ellipsis … */
COMBO2( 8220, "``", "``", "\\textquotedblleft" ), /* Opening double quote “ */
COMBO1( 8221, "''", "\"" ), /* Closing double quote ” */
COMBO2( 8221, "''", "''", "\\textquotedblright" ), /* Closing double quote ” */
COMBO2( 8216, "`", "`", "\\textquoteleft" ), /* Opening single quote ‘ */
COMBO2( 8217, "'", "'", "\\textquoteright" ), /* Closing single quote ’ */
MACRO1( 8242, "textasciiacutex", "\\textasciiacutex" ), /* Prime symbol ′ */
MACRO2( 180, "textasciiacute", "\\textasciiacute", "\\'" ), /* acute accent ´ */
MACRO1( 8243, "textacutedbl", "\\textacutedbl" ), /* Double prime ″ */
MACRO2( 8245, "textasciigrave", "\\textasciigrave", "\\`" ), /* Grave accent ‵ */
MACRO1( 8963, "textasciicircum", "\\textasciicircum" ), /* ⌃ */
MACRO1( 184, "textasciicedilla", "\\textasciicedilla" ), /* cedilla ¸ */
MACRO1( 168, "textasciidieresis", "\\textasciidieresis" ), /* dieresis ¨ */
MACRO1( 175, "textasciimacron", "\\textasciimacron" ), /* macron ¯ */
MACRO1( 8593, "textuparrow", "\\textuparrow" ), /* Up arrow ↑ */
MACRO1( 8595, "textdownarrow", "\\textdownarrow" ), /* Down arrow ↓ */
MACRO1( 8594, "textrightarrow", "\\textrightarrow" ), /* Right arrow → */
MACRO1( 8592, "textleftarrow", "\\textleftarrow" ), /* Left arrow ← */
MACRO1(12296, "textlangle", "\\textlangle" ), /* L-angle 〈 */
MACRO1(12297, "textrangle", "\\textrangle" ), /* R-angle 〉 */
MACRO1( 166, "textbrokenbar", "\\textbrokenbar" ), /* Broken vertical bar ¦ */
MACRO2( 167, "textsection", "\\textsection", "\\S" ), /* Section sign, § */
MACRO2( 170, "textordfeminine", "\\textordfeminine", "^a" ), /* ª */
MACRO1( 172, "textlnot", "\\textlnot" ), /* Lnot ¬ */
MACRO1( 182, "textparagraph", "\\textparagraph" ), /* Paragraph sign ¶ */
MACRO1( 183, "textperiodcentered", "\\textperiodcentered" ), /* Period-centered · */
MACRO1( 186, "textordmasculine", "\\textordmasculine" ), /* º */
MACRO1( 8214, "textbardbl", "\\textbardbl" ), /* Double vertical bar ‖ */
MACRO1( 8224, "textdagger", "\\textdagger" ), /* Dagger † */
MACRO1( 8225, "textdaggerdbl", "\\textdaggerdbl" ), /* Double dagger &x2021; */
MACRO1( 8226, "textbullet", "\\textbullet" ), /* Bullet • */
MACRO1( 8494, "textestimated", "\\textestimated" ), /* Estimated ℮ */
MACRO1( 9526, "textopenbullet", "\\textopenbullet" ), /* ┶ */
MACRO1( 8261, "textlquill", "\\textlquill" ), /* Left quill ⁅ */
MACRO1( 8262, "textrquill", "\\textrquill" ), /* Right quill ⁆ */
MACRO2( 8194, "enspace", "\\enspace", "\\hspace.5em" ), /* En-space   */
MACRO2( 8195, "emspace", "\\emspace", "\\hspace1em" ), /* Em-space   */
MACRO1( 8201, "thinspace", "\\thinspace" ), /* Thin space   */
MACRO1( 8203, "textnospace", "\\textnospace" ), /* No space ​ */
MACRO1( 9251, "textvisiblespace", "\\textvisiblespace" ), /* Visible space ␣ */
MACRO1( 215, "texttimes", "\\texttimes" ), /* Multiplication symbol × */
MACRO1( 247, "textdiv", "\\textdiv" ), /* Division symbol ÷ */
MACRO1( 177, "textpm", "\\textpm" ), /* Plus-minus character &#B1; */
MACRO1( 188, "textonequarter", "\\textonequarter" ), /* Vulgar fraction one quarter ¼ */
MACRO1( 189, "textonehalf", "\\textonehalf" ), /* Vulgar fraction one half ½ */
MACRO1( 190, "textthreequarters", "\\textthreequarters" ), /* Vulgar fraction three quarters ¾ */
MACRO1( 8240, "texttenthousand", "\\texttenthousand" ), /* Per thousand sign ‰ */
MACRO1( 8241, "textpertenthousand", "\\textpertenthousand" ), /* Per ten thousand sign ‱*/
MACRO1( 8260, "textfractionssolidus", "\\textfractionsolidus" ), /* &x8260 */
MACRO1( 8451, "textcelcius", "\\textcelcius" ), /* Celcius ℃ */
MACRO1( 8470, "textnumero", "\\textnumero" ), /* Numero symbol № */
MACRO1( 8486, "textohm", "\\textohm" ), /* Ohm symbol Ω */
MACRO1( 8487, "textmho", "\\textmho" ), /* Mho symbol ℧ */
MACRO1( 8730, "textsurd", "\\textsurd" ), /* √ */
MACRO2( 185, "textonesuperior", "\\textonesuperior", "^1" ), /*Superscript 1 ¹ */
MACRO2( 178, "texttwosuperior", "\\texttwosuperior", "^2" ), /*Superscript 2 ² */
MACRO2( 179, "textthreesuperior", "\\textthreesuperior", "^3" ), /*Superscript 3 ³ */
MATH1 ( 8308, "^4", "^4" ), /*Superscript 4 U+2074*/
MATH1 ( 8309, "^5", "^5" ), /*Superscript 5 U+2075*/
MATH1 ( 8310, "^6", "^6" ), /*Superscript 6 U+2076*/
MATH1 ( 8311, "^7", "^7" ), /*Superscript 7 U+2077*/
MATH1 ( 8312, "^8", "^8" ), /*Superscript 8 U+2078*/
MATH1 ( 8313, "^9", "^9" ), /*Superscript 9 U+2079*/
MATH1 ( 8314, "^+", "^+" ), /*Superscript - U+207A*/
MATH1 ( 8315, "^-", "^-" ), /*Superscript - U+207B*/
MATH1 ( 8316, "^=", "^=" ), /*Superscript = U+207C*/
MATH1 ( 8317, "^(", "^(" ), /*Superscript ) U+207D*/
MATH1 ( 8318, "^)", "^)" ), /*Superscript ) U+207E*/
MATH1 ( 8319, "^n", "^n" ), /*Superscript n U+207F*/
MATH1 ( 8320, "_0", "_0" ), /*Subscript 0 U+2080*/
MATH1 ( 8321, "_1", "_1" ), /*Subscript 1 U+2081*/
MATH1 ( 8322, "_2", "_2" ), /*Subscript 2 U+2082*/
MATH1 ( 8323, "_3", "_3" ), /*Subscript 3 U+2083*/
MATH1 ( 8324, "_4", "_4" ), /*Subscript 4 U+2084*/
MATH1 ( 8325, "_5", "_5" ), /*Subscript 5 U+2085*/
MATH1 ( 8326, "_6", "_6" ), /*Subscript 6 U+2086*/
MATH1 ( 8327, "_7", "_7" ), /*Subscript 7 U+2087*/
MATH1 ( 8328, "_8", "_8" ), /*Subscript 8 U+2088*/
MATH1 ( 8329, "_9", "_9" ), /*Subscript 9 U+2089*/
MATH2( 183, "\\cdot", "\\cdot", "^." ),
MATH1( 2192, "\\to", "\\to" ),
MACRO1( 161, "textexclamdown", "\\textexclamdown" ), /* Inverted exclamation mark ¡*/
MACRO1( 191, "textquestiondown", "\\textquestiondown" ), /* Inverted question mark ¿ */
MACRO1( 162, "textcent", "\\textcent" ), /* Cent sign ¢ */
MACRO2( 163, "textsterling", "\\textsterling", "\\pounds" ), /* Pound sign £ */
MACRO1( 165, "textyen", "\\textyen" ), /* Yen sign ¥ */
MACRO1( 402, "textflorin", "\\textflorin" ), /* Florin sign ƒ */
MACRO1( 3647, "textbaht", "\\textbaht" ), /* Thai currency ฿ */
MACRO1( 8355, "textfrenchfranc", "\\textfrenchfranc" ), /* French franc ₣ */
MACRO1( 8356, "textlira", "\\textlira" ), /* Lira ₤ */
MACRO1( 8358, "textnaira", "\\textnaira" ), /* Naira ₦ */
MACRO1( 8361, "textwon", "\\textwon" ), /* ₩ */
MACRO1( 8363, "textdong", "\\textdong" ), /* Vietnamese currency ₫ */
MACRO1( 8364, "texteuro", "\\texteuro" ), /* Euro sign */
MACRO1( 169, "textcopyright", "\\textcopyright" ), /* Copyright (C) © */
MACRO1( 175, "textregistered", "\\textregistered" ), /* Registered sign (R) ¯*/
MACRO2( 8482, "texttrademark", "\\texttrademark", "^TM" ), /* Trademark (TM) ™ */
MACRO2( 8480, "textservicemark", "\\textservicemark", "^SM" ), /* Servicemark (SM) ℠*/
MACRO1( 8471, "textcircledP", "\\textcircledP" ), /* Circled P ࡅ */
/* keep it after all other things like \~n */
MACRO1( 35, "#", "\\#" ), /* Number/pound/hash sign */
MACRO1( 36, "$", "\\$" ), /* Dollar Sign */
MACRO2( 36, "$", "\\$", "\\textdollar" ),
MACRO1( 37, "%", "\\%" ), /* Percent Sign */
MACRO1( 37, "%", "\\%" ),
MACRO1( 38, "&", "\\&" ), /* Ampersand */
MACRO1( 95, "_", "\\_" ), /* Underscore alone indicates subscript */
MACRO1( 95, "_", "\\textunderscore" ),
MACRO2( 123, "{", "\\{", "\\textbraceleft" ), /* Left Curly Bracket */
MACRO2( 125, "}", "\\}", "\\textbraceright" ), /* Right Curly Bracket */
MACRO2( 126, "~", "\\~", "\\textasciitilde" ),
MACRO1( 92, "backslash", "\\backslash" ), /* Backslash */
MACRO2( 176, "textdegree", "\\textdegree", "^\\circ" ), /* Degree sign */
};
static int nlatex_chars = sizeof(latex_chars)/sizeof(latex_chars[0]);
static struct latex_chars only_from_latex[] = {
COMBO1( 32, " ", "~" ),
MACRO1( 32, " ", "\\ " ), /* escaping the space is used to avoid extra space after periods */
};
static int num_only_from_latex = sizeof( only_from_latex ) / sizeof( only_from_latex[0] );
/* latex2char()
*
* Use the latex_chars[] lookup table to determine if any character
* is a special LaTeX code. Note that if it is, then the equivalency
* is a Unicode character and we need to flag (by setting *unicode to 1)
* that we know the output is Unicode. Otherwise, we set *unicode to 0,
* meaning that the output is whatever character set was given to us
* (which could be Unicode, but is not necessarily Unicode).
*
*/
static unsigned int
lookup_latex( struct latex_chars *lc, int n, char *p, unsigned int *pos, int *unicode )
{
struct latex_entry *variant;
int i, j;
for ( i=0; i<n; ++i ) {
for ( j=0; j<NUM_VARIANTS; ++j ) {
variant = &(lc[i].variant[j] );
if ( variant->entry == NULL ) break;
if ( !strncmp( p, variant->entry, variant->length ) ) {
*pos = *pos + variant->length;
*unicode = 1;
return lc[i].unicode;
}
}
}
return 0;
}
unsigned int
latex2char( char *s, unsigned int *pos, int *unicode )
{
unsigned int value, result;
char *p;
p = &( s[*pos] );
value = (unsigned char) *p;
if ( strchr( "\\\'\"`-^_lL", value ) ) {
result = lookup_latex( latex_chars, nlatex_chars, p, pos, unicode );
if ( result!=0 ) return result;
}
if ( value=='~' || value=='\\' ) {
result = lookup_latex( only_from_latex, num_only_from_latex, p, pos, unicode );
if ( result!=0 ) return result;
}
*unicode = 0;
*pos = *pos + 1;
return value;
}
void
uni2latex( unsigned int ch, char buf[], int buf_size )
{
int i, j, n;
if ( buf_size==0 ) return;
buf[0] = '?';
buf[1] = '\0';
if ( ch==' ' ) {
buf[0] = ' '; /*special case to avoid */
return;
}
for ( i=0; i<nlatex_chars; ++i ) {
if ( ch == latex_chars[i].unicode ) {
n = 0;
if ( latex_chars[i].type == LATEX_MACRO ) {
if ( n < buf_size ) buf[n++] = '{';
if ( n < buf_size ) buf[n++] = '\\';
}
else if ( latex_chars[i].type == LATEX_MATH ) {
if ( n < buf_size ) buf[n++] = '$';
}
j = 0;
while ( latex_chars[i].out[j] ) {
if ( n < buf_size ) buf[n++] = latex_chars[i].out[j];
j++;
}
if ( latex_chars[i].type == LATEX_MACRO ) {
if ( n < buf_size ) buf[n++] = '}';
}
else if ( latex_chars[i].type == LATEX_MATH ) {
if ( n < buf_size ) buf[n++] = '$';
}
if ( n < buf_size ) buf[n] = '\0';
else buf[ buf_size-1 ] = '\0';
return;
}
}
if ( ch < 128 ) buf[0] = (char)ch;
}
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