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22 lines
687 B
JavaScript
22 lines
687 B
JavaScript
export default normalizeIdentifier
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import values from '../character/values.mjs'
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function normalizeIdentifier(value) {
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return (
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value
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// Collapse Markdown whitespace.
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.replace(/[\t\n\r ]+/g, values.space)
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// Trim.
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.replace(/^ | $/g, '')
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// Some characters are considered “uppercase”, but if their lowercase
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// counterpart is uppercased will result in a different uppercase
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// character.
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// Hence, to get that form, we perform both lower- and uppercase.
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// Upper case makes sure keys will not interact with default prototypal
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// methods: no object method is uppercase.
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.toLowerCase()
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.toUpperCase()
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)
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}
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