sgauthier
6e64e138e2
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102 lines
2.8 KiB
JavaScript
102 lines
2.8 KiB
JavaScript
'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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