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next.js/packages/next-server/server/lib/path-match.js

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// We borrow this code from https://github.com/pillarjs/path-match
// That's because, ^^^ package comes with very old version of path-to-regexp
// So, it'll give us issues when the app has used a newer version of path-to-regexp
// (When webpack resolving packages)
var pathToRegexp = require('path-to-regexp')
var createError = require('http-errors')
module.exports = function (options) {
options = options || {}
return function (path) {
var keys = []
var re = pathToRegexp(path, keys, options)
return function (pathname, params) {
var m = re.exec(pathname)
if (!m) return false
params = params || {}
var key, param
for (var i = 0; i < keys.length; i++) {
key = keys[i]
param = m[i + 1]
if (!param) continue
params[key.name] = decodeParam(param)
if (key.repeat) params[key.name] = params[key.name].split(key.delimiter)
}
return params
}
}
}
function decodeParam (param) {
try {
return decodeURIComponent(param)
} catch (_) {
throw createError(400, 'failed to decode param "' + param + '"')
}
}