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101 lines
2.8 KiB
101 lines
2.8 KiB
'use strict' |
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var assert = require('assert') |
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var decodeEntity = require('parse-entities/decode-entity.js') |
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var asciiAlphanumeric = require('../character/ascii-alphanumeric.js') |
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var asciiDigit = require('../character/ascii-digit.js') |
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var asciiHexDigit = require('../character/ascii-hex-digit.js') |
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var codes = require('../character/codes.js') |
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var constants = require('../constant/constants.js') |
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var types = require('../constant/types.js') |
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function _interopDefaultLegacy(e) { |
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return e && typeof e === 'object' && 'default' in e ? e : {default: e} |
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} |
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var assert__default = /*#__PURE__*/ _interopDefaultLegacy(assert) |
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var decodeEntity__default = /*#__PURE__*/ _interopDefaultLegacy(decodeEntity) |
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var characterReference = { |
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name: 'characterReference', |
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tokenize: tokenizeCharacterReference |
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} |
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function tokenizeCharacterReference(effects, ok, nok) { |
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var self = this |
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var size = 0 |
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var max |
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var test |
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return start |
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function start(code) { |
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assert__default['default'](code === codes.ampersand, 'expected `&`') |
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effects.enter(types.characterReference) |
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effects.enter(types.characterReferenceMarker) |
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effects.consume(code) |
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effects.exit(types.characterReferenceMarker) |
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return open |
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} |
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function open(code) { |
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if (code === codes.numberSign) { |
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effects.enter(types.characterReferenceMarkerNumeric) |
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effects.consume(code) |
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effects.exit(types.characterReferenceMarkerNumeric) |
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return numeric |
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} |
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effects.enter(types.characterReferenceValue) |
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max = constants.characterReferenceNamedSizeMax |
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test = asciiAlphanumeric |
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return value(code) |
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} |
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function numeric(code) { |
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if (code === codes.uppercaseX || code === codes.lowercaseX) { |
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effects.enter(types.characterReferenceMarkerHexadecimal) |
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effects.consume(code) |
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effects.exit(types.characterReferenceMarkerHexadecimal) |
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effects.enter(types.characterReferenceValue) |
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max = constants.characterReferenceHexadecimalSizeMax |
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test = asciiHexDigit |
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return value |
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} |
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effects.enter(types.characterReferenceValue) |
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max = constants.characterReferenceDecimalSizeMax |
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test = asciiDigit |
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return value(code) |
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} |
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function value(code) { |
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var token |
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if (code === codes.semicolon && size) { |
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token = effects.exit(types.characterReferenceValue) |
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if ( |
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test === asciiAlphanumeric && |
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!decodeEntity__default['default'](self.sliceSerialize(token)) |
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) { |
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return nok(code) |
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} |
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effects.enter(types.characterReferenceMarker) |
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effects.consume(code) |
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effects.exit(types.characterReferenceMarker) |
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effects.exit(types.characterReference) |
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return ok |
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} |
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if (test(code) && size++ < max) { |
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effects.consume(code) |
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return value |
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} |
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return nok(code) |
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} |
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} |
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module.exports = characterReference
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