51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
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const regex = require('./regex.js')
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module.exports = BananaSlug
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const own = Object.hasOwnProperty
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function BananaSlug () {
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const self = this
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if (!(self instanceof BananaSlug)) return new BananaSlug()
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self.reset()
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}
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/**
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* Generate a unique slug.
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* @param {string} value String of text to slugify
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* @param {boolean} [false] Keep the current case, otherwise make all lowercase
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* @return {string} A unique slug string
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*/
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BananaSlug.prototype.slug = function (value, maintainCase) {
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const self = this
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let slug = slugger(value, maintainCase === true)
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const originalSlug = slug
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while (own.call(self.occurrences, slug)) {
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self.occurrences[originalSlug]++
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slug = originalSlug + '-' + self.occurrences[originalSlug]
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}
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self.occurrences[slug] = 0
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return slug
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}
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/**
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* Reset - Forget all previous slugs
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* @return void
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*/
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BananaSlug.prototype.reset = function () {
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this.occurrences = Object.create(null)
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}
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function slugger (string, maintainCase) {
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if (typeof string !== 'string') return ''
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if (!maintainCase) string = string.toLowerCase()
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return string.replace(regex, '').replace(/ /g, '-')
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}
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BananaSlug.slug = slugger
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