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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| 'use strict' | ||
|
|
||
| var keyStringifyRegexp = /([=:@$/])/g | ||
| var valueStringifyRegexp = /([&;/])/g | ||
| var keyParseRegexp = /[=:@$]/ | ||
| var valueParseRegexp = /[&;]/ | ||
|
|
||
| function encodeString(str, regexp) { | ||
| return encodeURI(str.replace(regexp, '/$1')) | ||
| } | ||
|
|
||
| function trim(res) { | ||
| return typeof res === 'string' ? res.replace(/;+$/g, '') : res | ||
| } | ||
|
|
||
| function stringify(input, recursive) { | ||
| if (!recursive) { | ||
| return trim(stringify(input, true)) | ||
| } | ||
| // Number, Boolean or Null | ||
| if ( | ||
| typeof input === 'number' || | ||
| input === true || | ||
| input === false || | ||
| input === null | ||
| ) { | ||
| return ':' + input | ||
| } | ||
| var res = [] | ||
| // Array | ||
| if (input instanceof Array) { | ||
| for (var i = 0; i < input.length; ++i) { | ||
| typeof input[i] === 'undefined' | ||
| ? res.push(':null') | ||
| : res.push(stringify(input[i], true)) | ||
| } | ||
| return '@' + res.join('&') + ';' | ||
| } | ||
| // Object | ||
| if (typeof input === 'object') { | ||
| for (var key in input) { | ||
| var val = stringify(input[key], true) | ||
| if (val) { | ||
| res.push(encodeString(key, keyStringifyRegexp) + val) | ||
| } | ||
| } | ||
| return '$' + res.join('&') + ';' | ||
| } | ||
| // undefined | ||
| if (typeof input === 'undefined') { | ||
| return | ||
| } | ||
| // String | ||
| return '=' + encodeString(input.toString(), valueStringifyRegexp) | ||
| } | ||
|
|
||
| function parse(str) { | ||
| var pos = 0 | ||
| str = decodeURI(str) | ||
|
|
||
| function readToken(regexp) { | ||
| var token = '' | ||
| for (; pos !== str.length; ++pos) { | ||
| if (str.charAt(pos) === '/') { | ||
| pos += 1 | ||
| if (pos === str.length) { | ||
| token += ';' | ||
| break | ||
| } | ||
| } else if (str.charAt(pos).match(regexp)) { | ||
| break | ||
| } | ||
| token += str.charAt(pos) | ||
| } | ||
| return token | ||
| } | ||
|
|
||
| function parseToken() { | ||
| var type = str.charAt(pos++) | ||
| // String | ||
| if (type === '=') { | ||
| return readToken(valueParseRegexp) | ||
| } | ||
| // Number, Boolean or Null | ||
| if (type === ':') { | ||
| var value = readToken(valueParseRegexp) | ||
| if (value === 'true') { | ||
| return true | ||
| } | ||
| if (value === 'false') { | ||
| return false | ||
| } | ||
| value = parseFloat(value) | ||
| return isNaN(value) ? null : value | ||
| } | ||
| var res | ||
| // Array | ||
| if (type === '@') { | ||
| res = [] | ||
| loop: { | ||
| // empty array | ||
| if (pos >= str.length || str.charAt(pos) === ';') { | ||
| break loop | ||
| } | ||
| // parse array items | ||
| while (1) { | ||
| res.push(parseToken()) | ||
| if (pos >= str.length || str.charAt(pos) === ';') { | ||
| break loop | ||
| } | ||
| pos += 1 | ||
| } | ||
| } | ||
| pos += 1 | ||
| return res | ||
| } | ||
| // Object | ||
| if (type === '$') { | ||
| res = {} | ||
| loop: { | ||
| if (pos >= str.length || str.charAt(pos) === ';') { | ||
| break loop | ||
| } | ||
| while (1) { | ||
| var name = readToken(keyParseRegexp) | ||
| res[name] = parseToken() | ||
| if (pos >= str.length || str.charAt(pos) === ';') { | ||
| break loop | ||
| } | ||
| pos += 1 | ||
| } | ||
| } | ||
| pos += 1 | ||
| return res | ||
| } | ||
| // Error | ||
| throw new Error('Unexpected char ' + type) | ||
| } | ||
|
|
||
| return parseToken() | ||
| } | ||
|
|
||
| export { | ||
| stringify, | ||
| parse, | ||
| }; |