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36 lines
885 B
JavaScript
36 lines
885 B
JavaScript
const unicode = require('../lib/unicode')
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module.exports = {
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isSpaceSeparator (c) {
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return typeof c === 'string' && unicode.Space_Separator.test(c)
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},
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isIdStartChar (c) {
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return typeof c === 'string' && (
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(c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') ||
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(c === '$') || (c === '_') ||
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unicode.ID_Start.test(c)
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)
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},
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isIdContinueChar (c) {
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return typeof c === 'string' && (
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(c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') ||
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(c >= '0' && c <= '9') ||
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(c === '$') || (c === '_') ||
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(c === '\u200C') || (c === '\u200D') ||
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unicode.ID_Continue.test(c)
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)
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},
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isDigit (c) {
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return typeof c === 'string' && /[0-9]/.test(c)
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},
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isHexDigit (c) {
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return typeof c === 'string' && /[0-9A-Fa-f]/.test(c)
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},
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}
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