toolkit/crashreporter/KeyValueParser.jsm
author Tyler Maklebust <maklebus@msu.edu>
Mon, 19 Dec 2016 21:10:54 -0500
changeset 325625 550922e8b2234ceb7bd8eb1e738c14ff8bff56ee
parent 260344 4f903c7e59e060ba33926839b6beb5167ec91b9d
permissions -rw-r--r--
Bug 1309935 - Add ability to find within select dropdown when over 40 elements. r?jaws, mconley, enndeakin Search implemented for select dropdown options. List navigation takes keyboard input as before, until search field is focused. Pref added to enable search (dom.forms.selectSearch). Task added to test search functionality. MozReview-Commit-ID: BiKRvNbQnxx

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

Components.utils.import("resource://gre/modules/Services.jsm");

this.EXPORTED_SYMBOLS = [
  "parseKeyValuePairsFromLines",
  "parseKeyValuePairs",
  "parseKeyValuePairsFromFile"
];

const Cc = Components.classes;
const Ci = Components.interfaces;

this.parseKeyValuePairsFromLines = function(lines) {
  let data = {};
  for (let line of lines) {
    if (line == '')
      continue;

    // can't just .split() because the value might contain = characters
    let eq = line.indexOf('=');
    if (eq != -1) {
      let [key, value] = [line.substring(0, eq),
                          line.substring(eq + 1)];
      if (key && value)
        data[key] = value.replace(/\\n/g, "\n").replace(/\\\\/g, "\\");
    }
  }
  return data;
}

this.parseKeyValuePairs = function parseKeyValuePairs(text) {
  let lines = text.split('\n');
  return parseKeyValuePairsFromLines(lines);
};

this.parseKeyValuePairsFromFile = function parseKeyValuePairsFromFile(file) {
  let fstream = Cc["@mozilla.org/network/file-input-stream;1"].
                createInstance(Ci.nsIFileInputStream);
  fstream.init(file, -1, 0, 0);
  let is = Cc["@mozilla.org/intl/converter-input-stream;1"].
           createInstance(Ci.nsIConverterInputStream);
  is.init(fstream, "UTF-8", 1024, Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
  let str = {};
  let contents = '';
  while (is.readString(4096, str) != 0) {
    contents += str.value;
  }
  is.close();
  fstream.close();
  return parseKeyValuePairs(contents);
}