55 lines
1.3 KiB
JavaScript
Executable File
55 lines
1.3 KiB
JavaScript
Executable File
var emoji = require('emoji-regex')
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module.exports = BananaSlug
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var own = Object.hasOwnProperty
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var whitespace = /\s/g
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var specials = /[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g
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function BananaSlug () {
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var 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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var self = this
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var slug = slugger(value, maintainCase === true)
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var 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.trim()
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.replace(specials, '')
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.replace(emoji(), '')
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.replace(whitespace, '-')
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}
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