microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-02-05 08:11:30 -06:00
Code Issues Packages Projects Releases 212 Wiki Activity

Properly escape strings when serializing source maps

Browse Source
This commit is contained in:
Mohamed Hegazy 2014-09-22 11:50:31 -07:00
parent c0b507ad08
commit 804a3a5a57
1 changed files with 32 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/compiler/emitter.ts
View File

@ -588,15 +588,40 @@ module ts {
recordSourceMapSpan(comment.end);
}
function serializeStringArray(list: string[]): string {
if (list && list.length) {
return "\"" + list.join("\",\"") + "\"";
}
return "";
}
var escapedCharsRegExp = /[\t\v\f\b\0\r\n\"\u2028\u2029\u0085]/g;
var escapedCharsMap: Map<string> = {
"\t": "\\t",
"\v": "\\v",
"\f": "\\f",
"\b": "\\b",
"\0": "\\0",
"\r": "\\r",
"\n": "\\n",
"\"": "\\\"",
"\u2028": "\\u2028", // lineSeparator
"\u2029": "\\u2029", // paragraphSeparator
"\u0085": "\\u0085" // nextLine
};
function serializeSourceMapContents(version: number, file: string, sourceRoot: string, sources: string[], names: string[], mappings: string) {
return "{\"version\":" + version + ",\"file\":\"" + file + "\",\"sourceRoot\":\"" + sourceRoot + "\",\"sources\":[" + serializeStringArray(sources) + "],\"names\":[" + serializeStringArray(names) + "],\"mappings\":\"" + mappings + "\"}";
return "{\"version\":" + version + ",\"file\":\"" + escapeString(file) + "\",\"sourceRoot\":\"" + escapeString(sourceRoot) + "\",\"sources\":[" + serializeStringArray(sources) + "],\"names\":[" + serializeStringArray(names) + "],\"mappings\":\"" + escapeString(mappings) + "\"}";
/** This does not support the full escape characters, it only supports the subset that can be used in file names
* or string literals. If the information encoded in the map changes, this needs to be revisited. */
function escapeString(s: string): string {
return escapedCharsRegExp.test(s) ? s.replace(escapedCharsRegExp, c => {
return escapedCharsMap[c] || c;
}) : s;
}
function serializeStringArray(list: string[]): string {
var output = "";
for (var i = 0, n = list.length; i < n; i++) {
if (i) output += ",";
output += "\"" + escapeString(list[i]) + "\"";
}
return output;
}
}
function writeJavaScriptAndSourceMapFile(emitOutput: string, writeByteOrderMark: boolean) {