Snowz
9218f57271
初始化项目，添加 favicon.ico、screenshot.png 等静态资源文件，以及 Vue、TailwindCSS 等依赖项。配置了 Vite 和 PostCSS，并生成了基本的项目结构。
75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
const REGEX_SPECIAL = /[\\^$.*+?()[\]{}|]/g
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const REGEX_HAS_SPECIAL = RegExp(REGEX_SPECIAL.source)
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/**
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* @param {string|RegExp|Array<string|RegExp>} source
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*/
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function toSource(source) {
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source = Array.isArray(source) ? source : [source]
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source = source.map((item) => (item instanceof RegExp ? item.source : item))
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return source.join('')
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}
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/**
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* @param {string|RegExp|Array<string|RegExp>} source
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*/
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export function pattern(source) {
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return new RegExp(toSource(source), 'g')
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}
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/**
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* @param {string|RegExp|Array<string|RegExp>} source
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*/
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export function withoutCapturing(source) {
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return new RegExp(`(?:${toSource(source)})`, 'g')
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}
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/**
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* @param {Array<string|RegExp>} sources
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*/
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export function any(sources) {
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return `(?:${sources.map(toSource).join('|')})`
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}
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/**
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* @param {string|RegExp} source
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*/
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export function optional(source) {
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return `(?:${toSource(source)})?`
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}
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/**
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* @param {string|RegExp|Array<string|RegExp>} source
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*/
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export function zeroOrMore(source) {
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return `(?:${toSource(source)})*`
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}
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/**
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* Generate a RegExp that matches balanced brackets for a given depth
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* We have to specify a depth because JS doesn't support recursive groups using ?R
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*
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* Based on https://stackoverflow.com/questions/17759004/how-to-match-string-within-parentheses-nested-in-java/17759264#17759264
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*
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* @param {string|RegExp|Array<string|RegExp>} source
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*/
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export function nestedBrackets(open, close, depth = 1) {
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return withoutCapturing([
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escape(open),
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/[^\s]*/,
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depth === 1
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? `[^${escape(open)}${escape(close)}\s]*`
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: any([`[^${escape(open)}${escape(close)}\s]*`, nestedBrackets(open, close, depth - 1)]),
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/[^\s]*/,
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escape(close),
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])
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}
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export function escape(string) {
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return string && REGEX_HAS_SPECIAL.test(string)
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? string.replace(REGEX_SPECIAL, '\\$&')
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: string || ''
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}
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