68 rader
1.3 KiB
JavaScript
68 rader
1.3 KiB
JavaScript
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/**
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* Export.
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*/
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module.exports = toNoCase
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/**
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* Test whether a string is camel-case.
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*/
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var hasSpace = /\s/
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var hasSeparator = /(_|-|\.|:)/
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var hasCamel = /([a-z][A-Z]|[A-Z][a-z])/
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/**
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* Remove any starting case from a `string`, like camel or snake, but keep
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* spaces and punctuation that may be important otherwise.
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*
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* @param {String} string
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* @return {String}
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*/
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function toNoCase(string) {
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if (hasSpace.test(string)) return string.toLowerCase()
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if (hasSeparator.test(string)) return (unseparate(string) || string).toLowerCase()
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if (hasCamel.test(string)) return uncamelize(string).toLowerCase()
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return string.toLowerCase()
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}
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/**
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* Separator splitter.
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*/
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var separatorSplitter = /[\W_]+(.|$)/g
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/**
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* Un-separate a `string`.
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*
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* @param {String} string
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* @return {String}
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*/
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function unseparate(string) {
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return string.replace(separatorSplitter, function (m, next) {
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return next ? ' ' + next : ''
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})
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}
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/**
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* Camelcase splitter.
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*/
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var camelSplitter = /(.)([A-Z]+)/g
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/**
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* Un-camelcase a `string`.
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*
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* @param {String} string
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* @return {String}
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*/
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function uncamelize(string) {
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return string.replace(camelSplitter, function (m, previous, uppers) {
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return previous + ' ' + uppers.toLowerCase().split('').join(' ')
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})
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}
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