dynatrace-cordova-outsystems-plugin/node_modules/jsonpointer/jsonpointer.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

var hasExcape = /~/
var escapeMatcher = /~[01]/g
function escapeReplacer (m) {
  switch (m) {
    case '~1': return '/'
    case '~0': return '~'
  }
  throw new Error('Invalid tilde escape: ' + m)
}

function untilde (str) {
  if (!hasExcape.test(str)) return str
  return str.replace(escapeMatcher, escapeReplacer)
}

function setter (obj, pointer, value) {
  var part
  var hasNextPart

  for (var p = 1, len = pointer.length; p < len;) {
    part = untilde(pointer[p++])
    hasNextPart = len > p

    if (typeof obj[part] === 'undefined') {
      // support setting of /-
      if (Array.isArray(obj) && part === '-') {
        part = obj.length
      }

      // support nested objects/array when setting values
      if (hasNextPart) {
        if ((pointer[p] !== '' && pointer[p] < Infinity) || pointer[p] === '-') obj[part] = []
        else obj[part] = {}
      }
    }

    if (!hasNextPart) break
    obj = obj[part]
  }

  var oldValue = obj[part]
  if (value === undefined) delete obj[part]
  else obj[part] = value
  return oldValue
}

function compilePointer (pointer) {
  if (typeof pointer === 'string') {
    pointer = pointer.split('/')
    if (pointer[0] === '') return pointer
    throw new Error('Invalid JSON pointer.')
  } else if (Array.isArray(pointer)) {
    return pointer
  }

  throw new Error('Invalid JSON pointer.')
}

function get (obj, pointer) {
  if (typeof obj !== 'object') throw new Error('Invalid input object.')
  pointer = compilePointer(pointer)
  var len = pointer.length
  if (len === 1) return obj

  for (var p = 1; p < len;) {
    obj = obj[untilde(pointer[p++])]
    if (len === p) return obj
    if (typeof obj !== 'object') return undefined
  }
}

function set (obj, pointer, value) {
  if (typeof obj !== 'object') throw new Error('Invalid input object.')
  pointer = compilePointer(pointer)
  if (pointer.length === 0) throw new Error('Invalid JSON pointer for set.')
  return setter(obj, pointer, value)
}

function compile (pointer) {
  var compiled = compilePointer(pointer)
  return {
    get: function (object) {
      return get(object, compiled)
    },
    set: function (object, value) {
      return set(object, compiled, value)
    }
  }
}

exports.get = get
exports.set = set
exports.compile = compile