'use strict' const { posix: path } = require('path') module.exports = (to, from, ctx) => { if (!to) return '#' if (to.charAt() !== '/') return to // NOTE only legacy invocation provides both to and from if (!ctx) from = (ctx = from).data.root.page.url if (!from) return (ctx.data.root.site.path || '') + to let hash = '' const hashIdx = to.indexOf('#') if (~hashIdx) { hash = to.slice(hashIdx) to = to.slice(0, hashIdx) } if (to === from) return hash || (isDir(to) ? './' : path.basename(to)) const rel = path.relative(path.dirname(from + '.'), to) return rel ? (isDir(to) ? rel + '/' : rel) + hash : (isDir(to) ? './' : '../' + path.basename(to)) + hash } function isDir (str) { return str.charAt(str.length - 1) === '/' }