docsify/src/core/render/slugify.js
2017-09-22 10:07:10 +08:00

30 lines
561 B
JavaScript

let cache = {}
const re = /[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,.\/:;<=>?@\[\]^`{|}~]/g
export function slugify (str) {
if (typeof str !== 'string') return ''
let slug = str
.toLowerCase()
.trim()
.replace(/<[^>\d]+>/g, '')
.replace(re, '')
.replace(/\s/g, '-')
.replace(/-+/g, '-')
.replace(/^(\d)/, '_$1')
let count = cache[slug]
count = cache.hasOwnProperty(slug) ? count + 1 : 0
cache[slug] = count
if (count) {
slug = slug + '-' + count
}
return slug
}
slugify.clear = function () {
cache = {}
}