39 rader
808 B
JavaScript
39 rader
808 B
JavaScript
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var sentence = require('to-sentence-case')
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var escape = require('escape-regexp-component')
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var minors = require('title-case-minors')
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/**
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* Export.
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*/
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module.exports = toTitleCase
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/**
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* Matchers.
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*/
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var escaped = minors.map(escape)
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var minorMatcher = new RegExp('[^^]\\b(' + escaped.join('|') + ')\\b', 'ig')
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var punctuationMatcher = /:\s*(\w)/g
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/**
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* Convert a `string` to title case.
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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 toTitleCase(string) {
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return sentence(string)
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.replace(/(^|\s)(\w)/g, function (matches, previous, letter) {
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return previous + letter.toUpperCase()
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})
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.replace(minorMatcher, function (minor) {
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return minor.toLowerCase()
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})
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.replace(punctuationMatcher, function (letter) {
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return letter.toUpperCase()
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})
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}
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