react-native-web-headroom
Version:
React Native Web Headroom
80 lines (62 loc) • 1.74 kB
JavaScript
;
/**
* Original Source:
* https://github.com/shapesecurity/shift-codegen-js/blob/0d09bd8a/src/coderep.js#L122
*
* The following function is an exact copy of the original implementation
*
* LICENSE
Copyright 2014 Shape Security, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
module.exports = function escapeStringLiteral(stringValue) {
var result = "";
var nSingle = 0,
nDouble = 0;
for (var i = 0, l = stringValue.length; i < l; ++i) {
var ch = stringValue[i];
if (ch === '"') {
++nDouble;
} else if (ch === "'") {
++nSingle;
}
}
var delim = nDouble > nSingle ? "'" : '"';
result += delim;
for (var _i = 0; _i < stringValue.length; _i++) {
var _ch = stringValue.charAt(_i);
switch (_ch) {
case delim:
result += "\\" + delim;
break;
case "\n":
result += "\\n";
break;
case "\r":
result += "\\r";
break;
case "\\":
result += "\\\\";
break;
case "\u2028":
result += "\\u2028";
break;
case "\u2029":
result += "\\u2029";
break;
default:
result += _ch;
break;
}
}
result += delim;
return result;
};