87 lines
2.1 KiB
JavaScript
87 lines
2.1 KiB
JavaScript
'use strict'
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// The swagger standard does not accept the url param with ':'
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// so '/user/:id' is not valid.
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// This function converts the url in a swagger compliant url string
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// => '/user/{id}'
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// custom verbs at the end of a url are okay => /user::watch but should be rendered as /user:watch in swagger
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const COLON = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
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function formatParamUrl (str) {
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let i, char
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let state = 'skip'
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let path = ''
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let param = ''
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let level = 0
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// count for regex if no param exist
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let regexp = 0
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for (i = 0; i < str.length; i++) {
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char = str[i]
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switch (state) {
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case 'colon': {
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// we only accept a-zA-Z0-9_ in param
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if (COLON.indexOf(char) !== -1) {
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param += char
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} else if (char === '(') {
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state = 'regexp'
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level++
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} else {
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// end
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state = 'skip'
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path += '{' + param + '}'
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path += char
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param = ''
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}
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break
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}
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case 'regexp': {
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if (char === '(') {
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level++
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} else if (char === ')') {
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level--
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}
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// we end if the level reach zero
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if (level === 0) {
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state = 'skip'
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if (param === '') {
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regexp++
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param = 'regexp' + String(regexp)
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}
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path += '{' + param + '}'
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param = ''
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}
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break
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}
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default: {
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// we check if we need to change state
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if (char === ':' && str[i + 1] === ':') {
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// double colon -> single colon
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path += char
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// skip one more
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i++
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} else if (char === ':') {
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// single colon -> state colon
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state = 'colon'
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} else if (char === '(') {
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state = 'regexp'
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level++
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} else if (char === '*') {
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// * -> {*}
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// should be exist once only
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path += '{*}'
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} else {
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path += char
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}
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}
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}
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}
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// clean up
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if (state === 'colon' && param !== '') {
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path += '{' + param + '}'
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}
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return path
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}
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module.exports = {
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formatParamUrl
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}
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