mirror of
https://github.com/S2-/minifyfromhtml.git
synced 2025-08-03 12:20:04 +02:00
80 lines
1.7 KiB
JavaScript
80 lines
1.7 KiB
JavaScript
"use strict";
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/**
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* Original Source:
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* https://github.com/shapesecurity/shift-codegen-js/blob/0d09bd8a/src/coderep.js#L122
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*
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* The following function is an exact copy of the original implementation
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*
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* LICENSE
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Copyright 2014 Shape Security, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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module.exports = function escapeStringLiteral(stringValue) {
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let result = "";
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let nSingle = 0,
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nDouble = 0;
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for (let i = 0, l = stringValue.length; i < l; ++i) {
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let ch = stringValue[i];
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if (ch === '"') {
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++nDouble;
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} else if (ch === "'") {
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++nSingle;
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}
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}
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let delim = nDouble > nSingle ? "'" : '"';
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result += delim;
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for (let i = 0; i < stringValue.length; i++) {
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let ch = stringValue.charAt(i);
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switch (ch) {
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case delim:
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result += "\\" + delim;
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break;
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case "\n":
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result += "\\n";
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break;
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case "\r":
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result += "\\r";
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break;
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case "\\":
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result += "\\\\";
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break;
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case "\u2028":
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result += "\\u2028";
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break;
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case "\u2029":
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result += "\\u2029";
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break;
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default:
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result += ch;
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break;
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}
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}
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result += delim;
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return result;
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}; |