gecko-dev/toolkit/crashreporter/KeyValueParser.jsm
2015-08-28 12:53:43 -04:00

55 lines
1.7 KiB
JavaScript

/* 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);
}