69 lines
1.9 KiB
TypeScript

export const hashRE = /#.*$/
export const extRE = /(index)?\.(md|html)$/
export const endingSlashRE = /\/$/
export const outboundRE = /^[a-z]+:/i
export function isNullish(value: any) {
return value === null || value === undefined
}
export function isArray(value: any) {
return Array.isArray(value)
}
export function isExternal(path: string) {
return outboundRE.test(path)
}
export function isActive(route: any, path: string) {
if (path === undefined) {
return false
}
const routePath = normalize(`/${route.data.relativePath}`)
const pagePath = normalize(path)
return routePath === pagePath
}
export function normalize(path: string) {
return decodeURI(path).replace(hashRE, '').replace(extRE, '')
}
export function joinUrl(base: string, path: string) {
const baseEndsWithSlash = base.endsWith('/')
const pathStartsWithSlash = path.startsWith('/')
if (baseEndsWithSlash && pathStartsWithSlash) {
return base.slice(0, -1) + path
}
if (!baseEndsWithSlash && !pathStartsWithSlash) {
return `${base}/${path}`
}
return base + path
}
/**
* get the path without filename (the last segment). for example, if the given
* path is `/guide/getting-started.html`, this method will return `/guide/`.
* Always with a trailing slash.
*/
export function getPathDirName(path: string) {
const segments = path.split('/')
if (segments[segments.length - 1]) {
segments.pop()
}
return ensureEndingSlash(segments.join('/'))
}
export function ensureSlash(path: string) {
return ensureEndingSlash(ensureStartingSlash(path))
}
export function ensureStartingSlash(path: string) {
return /^\//.test(path) ? path : `/${path}`
}
export function ensureEndingSlash(path: string) {
return /(\.html|\/)$/.test(path) ? path : `${path}/`
}
/**
* Remove `.md` or `.html` extention from the given path. It also converts
* `index` to slush.
*/
export function removeExtention(path: string) {
return path.replace(/(index)?(\.(md|html))?$/, '') || '/'
}