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- exports.parse = exports.decode = decode
- exports.stringify = exports.encode = encode
- exports.safe = safe
- exports.unsafe = unsafe
- var eol = process.platform === "win32" ? "\r\n" : "\n"
- function encode (obj, opt) {
- var children = []
- , out = ""
- if (typeof opt === "string") {
- opt = {
- section: opt,
- whitespace: false
- }
- } else {
- opt = opt || {}
- opt.whitespace = opt.whitespace === true
- }
- var separator = opt.whitespace ? " = " : "="
- Object.keys(obj).forEach(function (k, _, __) {
- var val = obj[k]
- if (val && Array.isArray(val)) {
- val.forEach(function(item) {
- out += safe(k + "[]") + separator + safe(item) + "\n"
- })
- }
- else if (val && typeof val === "object") {
- children.push(k)
- } else {
- out += safe(k) + separator + safe(val) + eol
- }
- })
- if (opt.section && out.length) {
- out = "[" + safe(opt.section) + "]" + eol + out
- }
- children.forEach(function (k, _, __) {
- var nk = dotSplit(k).join('\\.')
- var section = (opt.section ? opt.section + "." : "") + nk
- var child = encode(obj[k], {
- section: section,
- whitespace: opt.whitespace
- })
- if (out.length && child.length) {
- out += eol
- }
- out += child
- })
- return out
- }
- function dotSplit (str) {
- return str.replace(/\1/g, '\u0002LITERAL\\1LITERAL\u0002')
- .replace(/\\\./g, '\u0001')
- .split(/\./).map(function (part) {
- return part.replace(/\1/g, '\\.')
- .replace(/\2LITERAL\\1LITERAL\2/g, '\u0001')
- })
- }
- function decode (str) {
- var out = {}
- , p = out
- , section = null
- , state = "START"
- // section |key = value
- , re = /^\[([^\]]*)\]$|^([^=]+)(=(.*))?$/i
- , lines = str.split(/[\r\n]+/g)
- , section = null
- lines.forEach(function (line, _, __) {
- if (!line || line.match(/^\s*[;#]/)) return
- var match = line.match(re)
- if (!match) return
- if (match[1] !== undefined) {
- section = unsafe(match[1])
- p = out[section] = out[section] || {}
- return
- }
- var key = unsafe(match[2])
- , value = match[3] ? unsafe((match[4] || "")) : true
- switch (value) {
- case 'true':
- case 'false':
- case 'null': value = JSON.parse(value)
- }
- // Convert keys with '[]' suffix to an array
- if (key.length > 2 && key.slice(-2) === "[]") {
- key = key.substring(0, key.length - 2)
- if (!p[key]) {
- p[key] = []
- }
- else if (!Array.isArray(p[key])) {
- p[key] = [p[key]]
- }
- }
- // safeguard against resetting a previously defined
- // array by accidentally forgetting the brackets
- if (Array.isArray(p[key])) {
- p[key].push(value)
- }
- else {
- p[key] = value
- }
- })
- // {a:{y:1},"a.b":{x:2}} --> {a:{y:1,b:{x:2}}}
- // use a filter to return the keys that have to be deleted.
- Object.keys(out).filter(function (k, _, __) {
- if (!out[k] || typeof out[k] !== "object" || Array.isArray(out[k])) return false
- // see if the parent section is also an object.
- // if so, add it to that, and mark this one for deletion
- var parts = dotSplit(k)
- , p = out
- , l = parts.pop()
- , nl = l.replace(/\\\./g, '.')
- parts.forEach(function (part, _, __) {
- if (!p[part] || typeof p[part] !== "object") p[part] = {}
- p = p[part]
- })
- if (p === out && nl === l) return false
- p[nl] = out[k]
- return true
- }).forEach(function (del, _, __) {
- delete out[del]
- })
- return out
- }
- function isQuoted (val) {
- return (val.charAt(0) === "\"" && val.slice(-1) === "\"")
- || (val.charAt(0) === "'" && val.slice(-1) === "'")
- }
- function safe (val) {
- return ( typeof val !== "string"
- || val.match(/[=\r\n]/)
- || val.match(/^\[/)
- || (val.length > 1
- && isQuoted(val))
- || val !== val.trim() )
- ? JSON.stringify(val)
- : val.replace(/;/g, '\\;').replace(/#/g, "\\#")
- }
- function unsafe (val, doUnesc) {
- val = (val || "").trim()
- if (isQuoted(val)) {
- // remove the single quotes before calling JSON.parse
- if (val.charAt(0) === "'") {
- val = val.substr(1, val.length - 2);
- }
- try { val = JSON.parse(val) } catch (_) {}
- } else {
- // walk the val to find the first not-escaped ; character
- var esc = false
- var unesc = "";
- for (var i = 0, l = val.length; i < l; i++) {
- var c = val.charAt(i)
- if (esc) {
- if ("\\;#".indexOf(c) !== -1)
- unesc += c
- else
- unesc += "\\" + c
- esc = false
- } else if (";#".indexOf(c) !== -1) {
- break
- } else if (c === "\\") {
- esc = true
- } else {
- unesc += c
- }
- }
- if (esc)
- unesc += "\\"
- return unesc
- }
- return val
- }
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