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Diffstat (limited to 'xml/mxml-entity.c')
| -rw-r--r-- | xml/mxml-entity.c | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/xml/mxml-entity.c b/xml/mxml-entity.c new file mode 100644 index 0000000..c5c9f61 --- /dev/null +++ b/xml/mxml-entity.c @@ -0,0 +1,460 @@ +/* + * "$Id: mxml-entity.c 408 2010-09-19 05:26:46Z mike $" + * + * Character entity support code for Mini-XML, a small XML-like + * file parsing library. + * + * Copyright 2003-2010 by Michael R Sweet. + * + * These coded instructions, statements, and computer programs are the + * property of Michael R Sweet and are protected by Federal copyright + * law. Distribution and use rights are outlined in the file "COPYING" + * which should have been included with this file. If this file is + * missing or damaged, see the license at: + * + * http://www.minixml.org/ + * + * Contents: + * + * mxmlEntityAddCallback() - Add a callback to convert entities to + * Unicode. + * mxmlEntityGetName() - Get the name that corresponds to the + * character value. + * mxmlEntityGetValue() - Get the character corresponding to a named + * entity. + * mxmlEntityRemoveCallback() - Remove a callback. + * _mxml_entity_cb() - Lookup standard (X)HTML entities. + */ + +/* + * Include necessary headers... + */ + +#include "mxml-private.h" + + +/* + * 'mxmlEntityAddCallback()' - Add a callback to convert entities to Unicode. + */ + +int /* O - 0 on success, -1 on failure */ +mxmlEntityAddCallback( + mxml_entity_cb_t cb) /* I - Callback function to add */ +{ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + if (global->num_entity_cbs < (int)(sizeof(global->entity_cbs) / sizeof(global->entity_cbs[0]))) + { + global->entity_cbs[global->num_entity_cbs] = cb; + global->num_entity_cbs ++; + + return (0); + } + else + { + mxml_error("Unable to add entity callback!"); + + return (-1); + } +} + + +/* + * 'mxmlEntityGetName()' - Get the name that corresponds to the character value. + * + * If val does not need to be represented by a named entity, NULL is returned. + */ + +const char * /* O - Entity name or NULL */ +mxmlEntityGetName(int val) /* I - Character value */ +{ + switch (val) + { + case '&' : + return ("amp"); + + case '<' : + return ("lt"); + + case '>' : + return ("gt"); + + case '\"' : + return ("quot"); + + default : + return (NULL); + } +} + + +/* + * 'mxmlEntityGetValue()' - Get the character corresponding to a named entity. + * + * The entity name can also be a numeric constant. -1 is returned if the + * name is not known. + */ + +int /* O - Character value or -1 on error */ +mxmlEntityGetValue(const char *name) /* I - Entity name */ +{ + int i; /* Looping var */ + int ch; /* Character value */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + for (i = 0; i < global->num_entity_cbs; i ++) + if ((ch = (global->entity_cbs[i])(name)) >= 0) + return (ch); + + return (-1); +} + + +/* + * 'mxmlEntityRemoveCallback()' - Remove a callback. + */ + +void +mxmlEntityRemoveCallback( + mxml_entity_cb_t cb) /* I - Callback function to remove */ +{ + int i; /* Looping var */ + _mxml_global_t *global = _mxml_global(); + /* Global data */ + + + for (i = 0; i < global->num_entity_cbs; i ++) + if (cb == global->entity_cbs[i]) + { + /* + * Remove the callback... + */ + + global->num_entity_cbs --; + + if (i < global->num_entity_cbs) + memmove(global->entity_cbs + i, global->entity_cbs + i + 1, + (global->num_entity_cbs - i) * sizeof(global->entity_cbs[0])); + + return; + } +} + + +/* + * '_mxml_entity_cb()' - Lookup standard (X)HTML entities. + */ + +int /* O - Unicode value or -1 */ +_mxml_entity_cb(const char *name) /* I - Entity name */ +{ + int diff, /* Difference between names */ + current, /* Current entity in search */ + first, /* First entity in search */ + last; /* Last entity in search */ + static const struct + { + const char *name; /* Entity name */ + int val; /* Character value */ + } entities[] = + { + { "AElig", 198 }, + { "Aacute", 193 }, + { "Acirc", 194 }, + { "Agrave", 192 }, + { "Alpha", 913 }, + { "Aring", 197 }, + { "Atilde", 195 }, + { "Auml", 196 }, + { "Beta", 914 }, + { "Ccedil", 199 }, + { "Chi", 935 }, + { "Dagger", 8225 }, + { "Delta", 916 }, + { "Dstrok", 208 }, + { "ETH", 208 }, + { "Eacute", 201 }, + { "Ecirc", 202 }, + { "Egrave", 200 }, + { "Epsilon", 917 }, + { "Eta", 919 }, + { "Euml", 203 }, + { "Gamma", 915 }, + { "Iacute", 205 }, + { "Icirc", 206 }, + { "Igrave", 204 }, + { "Iota", 921 }, + { "Iuml", 207 }, + { "Kappa", 922 }, + { "Lambda", 923 }, + { "Mu", 924 }, + { "Ntilde", 209 }, + { "Nu", 925 }, + { "OElig", 338 }, + { "Oacute", 211 }, + { "Ocirc", 212 }, + { "Ograve", 210 }, + { "Omega", 937 }, + { "Omicron", 927 }, + { "Oslash", 216 }, + { "Otilde", 213 }, + { "Ouml", 214 }, + { "Phi", 934 }, + { "Pi", 928 }, + { "Prime", 8243 }, + { "Psi", 936 }, + { "Rho", 929 }, + { "Scaron", 352 }, + { "Sigma", 931 }, + { "THORN", 222 }, + { "Tau", 932 }, + { "Theta", 920 }, + { "Uacute", 218 }, + { "Ucirc", 219 }, + { "Ugrave", 217 }, + { "Upsilon", 933 }, + { "Uuml", 220 }, + { "Xi", 926 }, + { "Yacute", 221 }, + { "Yuml", 376 }, + { "Zeta", 918 }, + { "aacute", 225 }, + { "acirc", 226 }, + { "acute", 180 }, + { "aelig", 230 }, + { "agrave", 224 }, + { "alefsym", 8501 }, + { "alpha", 945 }, + { "amp", '&' }, + { "and", 8743 }, + { "ang", 8736 }, + { "apos", '\'' }, + { "aring", 229 }, + { "asymp", 8776 }, + { "atilde", 227 }, + { "auml", 228 }, + { "bdquo", 8222 }, + { "beta", 946 }, + { "brkbar", 166 }, + { "brvbar", 166 }, + { "bull", 8226 }, + { "cap", 8745 }, + { "ccedil", 231 }, + { "cedil", 184 }, + { "cent", 162 }, + { "chi", 967 }, + { "circ", 710 }, + { "clubs", 9827 }, + { "cong", 8773 }, + { "copy", 169 }, + { "crarr", 8629 }, + { "cup", 8746 }, + { "curren", 164 }, + { "dArr", 8659 }, + { "dagger", 8224 }, + { "darr", 8595 }, + { "deg", 176 }, + { "delta", 948 }, + { "diams", 9830 }, + { "die", 168 }, + { "divide", 247 }, + { "eacute", 233 }, + { "ecirc", 234 }, + { "egrave", 232 }, + { "empty", 8709 }, + { "emsp", 8195 }, + { "ensp", 8194 }, + { "epsilon", 949 }, + { "equiv", 8801 }, + { "eta", 951 }, + { "eth", 240 }, + { "euml", 235 }, + { "euro", 8364 }, + { "exist", 8707 }, + { "fnof", 402 }, + { "forall", 8704 }, + { "frac12", 189 }, + { "frac14", 188 }, + { "frac34", 190 }, + { "frasl", 8260 }, + { "gamma", 947 }, + { "ge", 8805 }, + { "gt", '>' }, + { "hArr", 8660 }, + { "harr", 8596 }, + { "hearts", 9829 }, + { "hellip", 8230 }, + { "hibar", 175 }, + { "iacute", 237 }, + { "icirc", 238 }, + { "iexcl", 161 }, + { "igrave", 236 }, + { "image", 8465 }, + { "infin", 8734 }, + { "int", 8747 }, + { "iota", 953 }, + { "iquest", 191 }, + { "isin", 8712 }, + { "iuml", 239 }, + { "kappa", 954 }, + { "lArr", 8656 }, + { "lambda", 955 }, + { "lang", 9001 }, + { "laquo", 171 }, + { "larr", 8592 }, + { "lceil", 8968 }, + { "ldquo", 8220 }, + { "le", 8804 }, + { "lfloor", 8970 }, + { "lowast", 8727 }, + { "loz", 9674 }, + { "lrm", 8206 }, + { "lsaquo", 8249 }, + { "lsquo", 8216 }, + { "lt", '<' }, + { "macr", 175 }, + { "mdash", 8212 }, + { "micro", 181 }, + { "middot", 183 }, + { "minus", 8722 }, + { "mu", 956 }, + { "nabla", 8711 }, + { "nbsp", 160 }, + { "ndash", 8211 }, + { "ne", 8800 }, + { "ni", 8715 }, + { "not", 172 }, + { "notin", 8713 }, + { "nsub", 8836 }, + { "ntilde", 241 }, + { "nu", 957 }, + { "oacute", 243 }, + { "ocirc", 244 }, + { "oelig", 339 }, + { "ograve", 242 }, + { "oline", 8254 }, + { "omega", 969 }, + { "omicron", 959 }, + { "oplus", 8853 }, + { "or", 8744 }, + { "ordf", 170 }, + { "ordm", 186 }, + { "oslash", 248 }, + { "otilde", 245 }, + { "otimes", 8855 }, + { "ouml", 246 }, + { "para", 182 }, + { "part", 8706 }, + { "permil", 8240 }, + { "perp", 8869 }, + { "phi", 966 }, + { "pi", 960 }, + { "piv", 982 }, + { "plusmn", 177 }, + { "pound", 163 }, + { "prime", 8242 }, + { "prod", 8719 }, + { "prop", 8733 }, + { "psi", 968 }, + { "quot", '\"' }, + { "rArr", 8658 }, + { "radic", 8730 }, + { "rang", 9002 }, + { "raquo", 187 }, + { "rarr", 8594 }, + { "rceil", 8969 }, + { "rdquo", 8221 }, + { "real", 8476 }, + { "reg", 174 }, + { "rfloor", 8971 }, + { "rho", 961 }, + { "rlm", 8207 }, + { "rsaquo", 8250 }, + { "rsquo", 8217 }, + { "sbquo", 8218 }, + { "scaron", 353 }, + { "sdot", 8901 }, + { "sect", 167 }, + { "shy", 173 }, + { "sigma", 963 }, + { "sigmaf", 962 }, + { "sim", 8764 }, + { "spades", 9824 }, + { "sub", 8834 }, + { "sube", 8838 }, + { "sum", 8721 }, + { "sup", 8835 }, + { "sup1", 185 }, + { "sup2", 178 }, + { "sup3", 179 }, + { "supe", 8839 }, + { "szlig", 223 }, + { "tau", 964 }, + { "there4", 8756 }, + { "theta", 952 }, + { "thetasym", 977 }, + { "thinsp", 8201 }, + { "thorn", 254 }, + { "tilde", 732 }, + { "times", 215 }, + { "trade", 8482 }, + { "uArr", 8657 }, + { "uacute", 250 }, + { "uarr", 8593 }, + { "ucirc", 251 }, + { "ugrave", 249 }, + { "uml", 168 }, + { "upsih", 978 }, + { "upsilon", 965 }, + { "uuml", 252 }, + { "weierp", 8472 }, + { "xi", 958 }, + { "yacute", 253 }, + { "yen", 165 }, + { "yuml", 255 }, + { "zeta", 950 }, + { "zwj", 8205 }, + { "zwnj", 8204 } + }; + + + /* + * Do a binary search for the named entity... + */ + + first = 0; + last = (int)(sizeof(entities) / sizeof(entities[0]) - 1); + + while ((last - first) > 1) + { + current = (first + last) / 2; + + if ((diff = strcmp(name, entities[current].name)) == 0) + return (entities[current].val); + else if (diff < 0) + last = current; + else + first = current; + } + + /* + * If we get here, there is a small chance that there is still + * a match; check first and last... + */ + + if (!strcmp(name, entities[first].name)) + return (entities[first].val); + else if (!strcmp(name, entities[last].name)) + return (entities[last].val); + else + return (-1); +} + + +/* + * End of "$Id: mxml-entity.c 408 2010-09-19 05:26:46Z mike $". + */ |