2024-02-27 20:04:27 +00:00
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//
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// Character entity support code for Mini-XML, a small XML file parsing library.
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//
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// https://www.msweet.org/mxml
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//
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// Copyright © 2003-2024 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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2003-12-18 04:16:37 +00:00
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2007-09-21 04:46:02 +00:00
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#include "mxml-private.h"
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2004-05-16 05:25:38 +00:00
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2024-02-27 20:04:27 +00:00
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//
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// 'mxmlEntityAddCallback()' - Add a callback to convert entities to Unicode.
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//
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2004-05-16 05:25:38 +00:00
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2024-03-02 23:47:57 +00:00
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bool // O - `true` on success, `false` on failure
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2007-09-21 04:46:02 +00:00
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mxmlEntityAddCallback(
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2024-02-27 20:04:27 +00:00
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mxml_entity_cb_t cb) // I - Callback function to add
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2004-05-16 05:25:38 +00:00
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{
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2007-09-21 04:46:02 +00:00
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_mxml_global_t *global = _mxml_global();
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2024-02-27 20:04:27 +00:00
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// Global data
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2007-09-21 04:46:02 +00:00
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2024-03-02 23:47:57 +00:00
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if (global->num_entity_cbs < (sizeof(global->entity_cbs) / sizeof(global->entity_cbs[0])))
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{
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2007-09-21 04:46:02 +00:00
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global->entity_cbs[global->num_entity_cbs] = cb;
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global->num_entity_cbs ++;
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2004-06-01 20:19:34 +00:00
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2024-03-02 23:47:57 +00:00
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return (true);
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2004-06-01 20:19:34 +00:00
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}
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else
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{
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_mxml_error("Unable to add entity callback!");
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2004-06-01 20:19:34 +00:00
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2024-03-02 23:47:57 +00:00
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return (false);
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2004-05-16 05:25:38 +00:00
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}
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}
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2024-02-27 20:04:27 +00:00
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//
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// '_mxml_entity_string()' - Get the entity that corresponds to the character, if any.
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2024-02-27 20:04:27 +00:00
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//
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2003-12-18 04:16:37 +00:00
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2024-03-06 19:45:10 +00:00
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const char * // O - Entity or `NULL` for none
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_mxml_entity_string(int ch) // I - Character
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{
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switch (ch)
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2003-12-18 04:16:37 +00:00
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{
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case '&' :
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return ("&");
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case '<' :
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return ("<");
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case '>' :
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return (">");
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2003-12-18 04:16:37 +00:00
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case '\"' :
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return (""");
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2003-12-18 04:16:37 +00:00
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default :
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return (NULL);
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}
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}
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2024-02-27 20:04:27 +00:00
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//
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// 'mxmlEntityGetValue()' - Get the character corresponding to a named entity.
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//
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// The entity name can also be a numeric constant. `-1` is returned if the
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2024-02-27 20:04:27 +00:00
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// name is not known.
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//
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2003-12-18 04:16:37 +00:00
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2024-03-02 23:47:57 +00:00
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int // O - Character value or `-1` on error
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mxmlEntityGetValue(const char *name) // I - Entity name
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{
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size_t i; // Looping var
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int ch; // Character value
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2007-09-21 04:46:02 +00:00
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_mxml_global_t *global = _mxml_global();
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// Global data
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2007-09-21 04:46:02 +00:00
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for (i = 0; i < global->num_entity_cbs; i ++)
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{
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if ((ch = (global->entity_cbs[i])(name)) >= 0)
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return (ch);
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2024-02-27 20:04:27 +00:00
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}
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2004-05-16 05:25:38 +00:00
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return (-1);
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}
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2024-02-27 20:04:27 +00:00
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//
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// 'mxmlEntityRemoveCallback()' - Remove a callback.
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//
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2004-05-16 05:25:38 +00:00
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void
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2009-03-19 05:38:52 +00:00
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mxmlEntityRemoveCallback(
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mxml_entity_cb_t cb) // I - Callback function to remove
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2004-05-16 05:25:38 +00:00
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{
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2024-03-02 23:47:57 +00:00
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size_t i; // Looping var
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2007-09-21 04:46:02 +00:00
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_mxml_global_t *global = _mxml_global();
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// Global data
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2004-05-16 05:25:38 +00:00
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2007-09-21 04:46:02 +00:00
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for (i = 0; i < global->num_entity_cbs; i ++)
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2024-02-27 20:04:27 +00:00
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{
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2007-09-21 04:46:02 +00:00
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if (cb == global->entity_cbs[i])
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2004-05-16 05:25:38 +00:00
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{
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2024-02-27 20:04:27 +00:00
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// Remove the callback...
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global->num_entity_cbs --;
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2007-09-21 04:46:02 +00:00
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if (i < global->num_entity_cbs)
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memmove(global->entity_cbs + i, global->entity_cbs + i + 1, (global->num_entity_cbs - i) * sizeof(global->entity_cbs[0]));
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2004-05-16 05:25:38 +00:00
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return;
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}
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2024-02-27 20:04:27 +00:00
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}
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2004-05-16 05:25:38 +00:00
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}
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2024-02-27 20:04:27 +00:00
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//
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// '_mxml_entity_cb()' - Lookup standard (X)HTML entities.
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//
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2004-05-16 05:25:38 +00:00
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2024-02-27 20:04:27 +00:00
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int // O - Unicode value or -1
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_mxml_entity_cb(const char *name) // I - Entity name
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{
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int diff; // Difference between names
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size_t current, // Current entity in search
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first, // First entity in search
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last; // Last entity in search
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static const struct
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{
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const char *name; // Entity name
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int val; // Character value
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} entities[] =
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{
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{ "AElig", 198 },
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{ "Aacute", 193 },
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{ "Acirc", 194 },
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{ "Agrave", 192 },
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{ "Alpha", 913 },
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{ "Aring", 197 },
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{ "Atilde", 195 },
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{ "Auml", 196 },
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{ "Beta", 914 },
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{ "Ccedil", 199 },
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{ "Chi", 935 },
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{ "Dagger", 8225 },
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{ "Delta", 916 },
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{ "Dstrok", 208 },
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{ "ETH", 208 },
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{ "Eacute", 201 },
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{ "Ecirc", 202 },
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{ "Egrave", 200 },
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{ "Epsilon", 917 },
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{ "Eta", 919 },
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{ "Euml", 203 },
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{ "Gamma", 915 },
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{ "Iacute", 205 },
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{ "Icirc", 206 },
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{ "Igrave", 204 },
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{ "Iota", 921 },
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{ "Iuml", 207 },
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{ "Kappa", 922 },
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{ "Lambda", 923 },
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{ "Mu", 924 },
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{ "Ntilde", 209 },
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{ "Nu", 925 },
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{ "OElig", 338 },
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{ "Oacute", 211 },
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{ "Ocirc", 212 },
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{ "Ograve", 210 },
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{ "Omega", 937 },
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{ "Omicron", 927 },
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{ "Oslash", 216 },
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{ "Otilde", 213 },
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{ "Ouml", 214 },
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{ "Phi", 934 },
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{ "Pi", 928 },
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{ "Prime", 8243 },
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{ "Psi", 936 },
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{ "Rho", 929 },
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{ "Scaron", 352 },
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{ "Sigma", 931 },
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{ "THORN", 222 },
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{ "Tau", 932 },
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{ "Theta", 920 },
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{ "Uacute", 218 },
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{ "Ucirc", 219 },
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{ "Ugrave", 217 },
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{ "Upsilon", 933 },
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{ "Uuml", 220 },
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{ "Xi", 926 },
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{ "Yacute", 221 },
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{ "Yuml", 376 },
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{ "Zeta", 918 },
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{ "aacute", 225 },
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{ "acirc", 226 },
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{ "acute", 180 },
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{ "aelig", 230 },
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{ "agrave", 224 },
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{ "alefsym", 8501 },
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{ "alpha", 945 },
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{ "amp", '&' },
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{ "and", 8743 },
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{ "ang", 8736 },
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2007-09-09 08:02:52 +00:00
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{ "apos", '\'' },
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{ "aring", 229 },
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{ "asymp", 8776 },
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{ "atilde", 227 },
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{ "auml", 228 },
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{ "bdquo", 8222 },
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{ "beta", 946 },
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{ "brkbar", 166 },
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{ "brvbar", 166 },
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{ "bull", 8226 },
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{ "cap", 8745 },
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{ "ccedil", 231 },
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{ "cedil", 184 },
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{ "cent", 162 },
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{ "chi", 967 },
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{ "circ", 710 },
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{ "clubs", 9827 },
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{ "cong", 8773 },
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{ "copy", 169 },
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{ "crarr", 8629 },
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{ "cup", 8746 },
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{ "curren", 164 },
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{ "dArr", 8659 },
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{ "dagger", 8224 },
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{ "darr", 8595 },
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{ "deg", 176 },
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{ "delta", 948 },
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{ "diams", 9830 },
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{ "die", 168 },
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{ "divide", 247 },
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{ "eacute", 233 },
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{ "ecirc", 234 },
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{ "egrave", 232 },
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{ "empty", 8709 },
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{ "emsp", 8195 },
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{ "ensp", 8194 },
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{ "epsilon", 949 },
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{ "equiv", 8801 },
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{ "eta", 951 },
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{ "eth", 240 },
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{ "euml", 235 },
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{ "euro", 8364 },
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{ "exist", 8707 },
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{ "fnof", 402 },
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{ "forall", 8704 },
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{ "frac12", 189 },
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{ "frac14", 188 },
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{ "frac34", 190 },
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{ "frasl", 8260 },
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{ "gamma", 947 },
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{ "ge", 8805 },
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{ "gt", '>' },
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{ "hArr", 8660 },
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{ "harr", 8596 },
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{ "hearts", 9829 },
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{ "hellip", 8230 },
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{ "hibar", 175 },
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{ "iacute", 237 },
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{ "icirc", 238 },
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{ "iexcl", 161 },
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{ "igrave", 236 },
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{ "image", 8465 },
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{ "infin", 8734 },
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{ "int", 8747 },
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{ "iota", 953 },
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{ "iquest", 191 },
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{ "isin", 8712 },
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{ "iuml", 239 },
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{ "kappa", 954 },
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{ "lArr", 8656 },
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{ "lambda", 955 },
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{ "lang", 9001 },
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{ "laquo", 171 },
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{ "larr", 8592 },
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{ "lceil", 8968 },
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{ "ldquo", 8220 },
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{ "le", 8804 },
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{ "lfloor", 8970 },
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{ "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 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
2024-02-27 20:04:27 +00:00
|
|
|
|
// Do a binary search for the named entity...
|
2003-12-18 04:16:37 +00:00
|
|
|
|
first = 0;
|
2024-03-02 23:47:57 +00:00
|
|
|
|
last = sizeof(entities) / sizeof(entities[0]) - 1;
|
2003-12-18 04:16:37 +00:00
|
|
|
|
|
2004-10-26 21:04:32 +00:00
|
|
|
|
while ((last - first) > 1)
|
2003-12-18 04:16:37 +00:00
|
|
|
|
{
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
2024-02-27 20:04:27 +00:00
|
|
|
|
// If we get here, there is a small chance that there is still a match; check first and last...
|
2004-10-26 21:04:32 +00:00
|
|
|
|
if (!strcmp(name, entities[first].name))
|
|
|
|
|
return (entities[first].val);
|
|
|
|
|
else if (!strcmp(name, entities[last].name))
|
|
|
|
|
return (entities[last].val);
|
2003-12-18 04:16:37 +00:00
|
|
|
|
else
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|