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+/*
+ * "$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 $".
+ */