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xmltoken.js
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xmltoken.js
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// Copyright 2006 Google Inc.
// All Rights Reserved
//
// Defines regular expression patterns to extract XML tokens from string.
// See <http://www.w3.org/TR/REC-xml/#sec-common-syn>,
// <http://www.w3.org/TR/xml11/#sec-common-syn> and
// <http://www.w3.org/TR/REC-xml-names/#NT-NCName> for the specifications.
//
// Author: Junji Takagi <[email protected]>
// Detect whether RegExp supports Unicode characters or not.
var REGEXP_UNICODE = function() {
var tests = [' ', '\u0120', -1, // Konquerer 3.4.0 fails here.
'!', '\u0120', -1,
'\u0120', '\u0120', 0,
'\u0121', '\u0120', -1,
'\u0121', '\u0120|\u0121', 0,
'\u0122', '\u0120|\u0121', -1,
'\u0120', '[\u0120]', 0, // Safari 2.0.3 fails here.
'\u0121', '[\u0120]', -1,
'\u0121', '[\u0120\u0121]', 0, // Safari 2.0.3 fails here.
'\u0122', '[\u0120\u0121]', -1,
'\u0121', '[\u0120-\u0121]', 0, // Safari 2.0.3 fails here.
'\u0122', '[\u0120-\u0121]', -1];
for (var i = 0; i < tests.length; i += 3) {
if (tests[i].search(new RegExp(tests[i + 1])) != tests[i + 2]) {
return false;
}
}
return true;
}();
// Common tokens in XML 1.0 and XML 1.1.
var XML_S = '[ \t\r\n]+';
var XML_EQ = '(' + XML_S + ')?=(' + XML_S + ')?';
var XML_CHAR_REF = '&#[0-9]+;|&#x[0-9a-fA-F]+;';
// XML 1.0 tokens.
var XML10_VERSION_INFO = XML_S + 'version' + XML_EQ + '("1\\.0"|' + "'1\\.0')";
var XML10_BASE_CHAR = (REGEXP_UNICODE) ?
'\u0041-\u005a\u0061-\u007a\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff' +
'\u0100-\u0131\u0134-\u013e\u0141-\u0148\u014a-\u017e\u0180-\u01c3' +
'\u01cd-\u01f0\u01f4-\u01f5\u01fa-\u0217\u0250-\u02a8\u02bb-\u02c1\u0386' +
'\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03ce\u03d0-\u03d6\u03da\u03dc' +
'\u03de\u03e0\u03e2-\u03f3\u0401-\u040c\u040e-\u044f\u0451-\u045c' +
'\u045e-\u0481\u0490-\u04c4\u04c7-\u04c8\u04cb-\u04cc\u04d0-\u04eb' +
'\u04ee-\u04f5\u04f8-\u04f9\u0531-\u0556\u0559\u0561-\u0586\u05d0-\u05ea' +
'\u05f0-\u05f2\u0621-\u063a\u0641-\u064a\u0671-\u06b7\u06ba-\u06be' +
'\u06c0-\u06ce\u06d0-\u06d3\u06d5\u06e5-\u06e6\u0905-\u0939\u093d' +
'\u0958-\u0961\u0985-\u098c\u098f-\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2' +
'\u09b6-\u09b9\u09dc-\u09dd\u09df-\u09e1\u09f0-\u09f1\u0a05-\u0a0a' +
'\u0a0f-\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32-\u0a33\u0a35-\u0a36' +
'\u0a38-\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8b\u0a8d' +
'\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2-\u0ab3\u0ab5-\u0ab9' +
'\u0abd\u0ae0\u0b05-\u0b0c\u0b0f-\u0b10\u0b13-\u0b28\u0b2a-\u0b30' +
'\u0b32-\u0b33\u0b36-\u0b39\u0b3d\u0b5c-\u0b5d\u0b5f-\u0b61\u0b85-\u0b8a' +
'\u0b8e-\u0b90\u0b92-\u0b95\u0b99-\u0b9a\u0b9c\u0b9e-\u0b9f\u0ba3-\u0ba4' +
'\u0ba8-\u0baa\u0bae-\u0bb5\u0bb7-\u0bb9\u0c05-\u0c0c\u0c0e-\u0c10' +
'\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c60-\u0c61\u0c85-\u0c8c' +
'\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cde\u0ce0-\u0ce1' +
'\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d28\u0d2a-\u0d39\u0d60-\u0d61' +
'\u0e01-\u0e2e\u0e30\u0e32-\u0e33\u0e40-\u0e45\u0e81-\u0e82\u0e84' +
'\u0e87-\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5' +
'\u0ea7\u0eaa-\u0eab\u0ead-\u0eae\u0eb0\u0eb2-\u0eb3\u0ebd\u0ec0-\u0ec4' +
'\u0f40-\u0f47\u0f49-\u0f69\u10a0-\u10c5\u10d0-\u10f6\u1100\u1102-\u1103' +
'\u1105-\u1107\u1109\u110b-\u110c\u110e-\u1112\u113c\u113e\u1140\u114c' +
'\u114e\u1150\u1154-\u1155\u1159\u115f-\u1161\u1163\u1165\u1167\u1169' +
'\u116d-\u116e\u1172-\u1173\u1175\u119e\u11a8\u11ab\u11ae-\u11af' +
'\u11b7-\u11b8\u11ba\u11bc-\u11c2\u11eb\u11f0\u11f9\u1e00-\u1e9b' +
'\u1ea0-\u1ef9\u1f00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d' +
'\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc' +
'\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec' +
'\u1ff2-\u1ff4\u1ff6-\u1ffc\u2126\u212a-\u212b\u212e\u2180-\u2182' +
'\u3041-\u3094\u30a1-\u30fa\u3105-\u312c\uac00-\ud7a3' :
'A-Za-z';
var XML10_IDEOGRAPHIC = (REGEXP_UNICODE) ?
'\u4e00-\u9fa5\u3007\u3021-\u3029' :
'';
var XML10_COMBINING_CHAR = (REGEXP_UNICODE) ?
'\u0300-\u0345\u0360-\u0361\u0483-\u0486\u0591-\u05a1\u05a3-\u05b9' +
'\u05bb-\u05bd\u05bf\u05c1-\u05c2\u05c4\u064b-\u0652\u0670\u06d6-\u06dc' +
'\u06dd-\u06df\u06e0-\u06e4\u06e7-\u06e8\u06ea-\u06ed\u0901-\u0903\u093c' +
'\u093e-\u094c\u094d\u0951-\u0954\u0962-\u0963\u0981-\u0983\u09bc\u09be' +
'\u09bf\u09c0-\u09c4\u09c7-\u09c8\u09cb-\u09cd\u09d7\u09e2-\u09e3\u0a02' +
'\u0a3c\u0a3e\u0a3f\u0a40-\u0a42\u0a47-\u0a48\u0a4b-\u0a4d\u0a70-\u0a71' +
'\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0b01-\u0b03' +
'\u0b3c\u0b3e-\u0b43\u0b47-\u0b48\u0b4b-\u0b4d\u0b56-\u0b57\u0b82-\u0b83' +
'\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0c01-\u0c03\u0c3e-\u0c44' +
'\u0c46-\u0c48\u0c4a-\u0c4d\u0c55-\u0c56\u0c82-\u0c83\u0cbe-\u0cc4' +
'\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5-\u0cd6\u0d02-\u0d03\u0d3e-\u0d43' +
'\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1' +
'\u0eb4-\u0eb9\u0ebb-\u0ebc\u0ec8-\u0ecd\u0f18-\u0f19\u0f35\u0f37\u0f39' +
'\u0f3e\u0f3f\u0f71-\u0f84\u0f86-\u0f8b\u0f90-\u0f95\u0f97\u0f99-\u0fad' +
'\u0fb1-\u0fb7\u0fb9\u20d0-\u20dc\u20e1\u302a-\u302f\u3099\u309a' :
'';
var XML10_DIGIT = (REGEXP_UNICODE) ?
'\u0030-\u0039\u0660-\u0669\u06f0-\u06f9\u0966-\u096f\u09e6-\u09ef' +
'\u0a66-\u0a6f\u0ae6-\u0aef\u0b66-\u0b6f\u0be7-\u0bef\u0c66-\u0c6f' +
'\u0ce6-\u0cef\u0d66-\u0d6f\u0e50-\u0e59\u0ed0-\u0ed9\u0f20-\u0f29' :
'0-9';
var XML10_EXTENDER = (REGEXP_UNICODE) ?
'\u00b7\u02d0\u02d1\u0387\u0640\u0e46\u0ec6\u3005\u3031-\u3035' +
'\u309d-\u309e\u30fc-\u30fe' :
'';
var XML10_LETTER = XML10_BASE_CHAR + XML10_IDEOGRAPHIC;
var XML10_NAME_CHAR = XML10_LETTER + XML10_DIGIT + '\\._:' +
XML10_COMBINING_CHAR + XML10_EXTENDER + '-';
var XML10_NAME = '[' + XML10_LETTER + '_:][' + XML10_NAME_CHAR + ']*';
var XML10_ENTITY_REF = '&' + XML10_NAME + ';';
var XML10_REFERENCE = XML10_ENTITY_REF + '|' + XML_CHAR_REF;
var XML10_ATT_VALUE = '"(([^<&"]|' + XML10_REFERENCE + ')*)"|' +
"'(([^<&']|" + XML10_REFERENCE + ")*)'";
var XML10_ATTRIBUTE =
'(' + XML10_NAME + ')' + XML_EQ + '(' + XML10_ATT_VALUE + ')';
// XML 1.1 tokens.
// TODO(jtakagi): NameStartChar also includes \u10000-\ueffff.
// ECMAScript Language Specifiction defines UnicodeEscapeSequence as
// "\u HexDigit HexDigit HexDigit HexDigit" and we may need to use
// surrogate pairs, but any browser doesn't support surrogate paris in
// character classes of regular expression, so avoid including them for now.
var XML11_VERSION_INFO = XML_S + 'version' + XML_EQ + '("1\\.1"|' + "'1\\.1')";
var XML11_NAME_START_CHAR = (REGEXP_UNICODE) ?
':A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d' +
'\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff' +
'\uf900-\ufdcf\ufdf0-\ufffd' :
':A-Z_a-z';
var XML11_NAME_CHAR = XML11_NAME_START_CHAR +
((REGEXP_UNICODE) ? '\\.0-9\u00b7\u0300-\u036f\u203f-\u2040-' : '\\.0-9-');
var XML11_NAME = '[' + XML11_NAME_START_CHAR + '][' + XML11_NAME_CHAR + ']*';
var XML11_ENTITY_REF = '&' + XML11_NAME + ';';
var XML11_REFERENCE = XML11_ENTITY_REF + '|' + XML_CHAR_REF;
var XML11_ATT_VALUE = '"(([^<&"]|' + XML11_REFERENCE + ')*)"|' +
"'(([^<&']|" + XML11_REFERENCE + ")*)'";
var XML11_ATTRIBUTE =
'(' + XML11_NAME + ')' + XML_EQ + '(' + XML11_ATT_VALUE + ')';
// XML Namespace tokens.
// Used in XML parser and XPath parser.
var XML_NC_NAME_CHAR = XML10_LETTER + XML10_DIGIT + '\\._' +
XML10_COMBINING_CHAR + XML10_EXTENDER + '-';
var XML_NC_NAME = '[' + XML10_LETTER + '_][' + XML_NC_NAME_CHAR + ']*';