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node_modules/ini/ini.js 4.66 KB
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  exports.parse = exports.decode = decode
  
  exports.stringify = exports.encode = encode
  
  exports.safe = safe
  exports.unsafe = unsafe
  
  var eol = typeof process !== 'undefined' &&
    process.platform === 'win32' ? '\r\n' : '\n'
  
  function encode (obj, opt) {
    var children = []
    var 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 = {}
    var p = out
    var section = null
    //          section     |key      = value
    var re = /^\[([^\]]*)\]$|^([^=]+)(=(.*))?$/i
    var lines = str.split(/[\r\n]+/g)
  
    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])
      var 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)
      var p = out
      var l = parts.pop()
      var 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.trim()
    }
    return val
  }