65 lines
1.9 KiB
TypeScript
65 lines
1.9 KiB
TypeScript
// Convert a JavaScript string to UTF-16 encoding
|
|
function toUTF16(codePoint: number): string {
|
|
if (codePoint <= 0xffff) {
|
|
// BMP character
|
|
return "\\u" + codePoint.toString(16).padStart(4, "0");
|
|
} else {
|
|
// Non-BMP character
|
|
codePoint -= 0x10000;
|
|
let highSurrogate = (codePoint >> 10) + 0xd800;
|
|
let lowSurrogate = (codePoint % 0x400) + 0xdc00;
|
|
return (
|
|
"\\u" +
|
|
highSurrogate.toString(16).padStart(4, "0") +
|
|
"\\u" +
|
|
lowSurrogate.toString(16).padStart(4, "0")
|
|
);
|
|
}
|
|
}
|
|
|
|
// Escapes special characters for use in a .properties file
|
|
export function escapeStringForPropertiesFile(str: string): string {
|
|
let escapedStr = "";
|
|
for (const char of [...str]) {
|
|
const codePoint = char.codePointAt(0);
|
|
if (!codePoint) continue;
|
|
|
|
switch (char) {
|
|
case "\n":
|
|
escapedStr += "\\n";
|
|
break;
|
|
case "\r":
|
|
escapedStr += "\\r";
|
|
break;
|
|
case "\t":
|
|
escapedStr += "\\t";
|
|
break;
|
|
case "\\":
|
|
escapedStr += "\\\\";
|
|
break;
|
|
case ":":
|
|
escapedStr += "\\:";
|
|
break;
|
|
case "=":
|
|
escapedStr += "\\=";
|
|
break;
|
|
case "#":
|
|
escapedStr += "\\#";
|
|
break;
|
|
case "!":
|
|
escapedStr += "\\!";
|
|
break;
|
|
case "'":
|
|
escapedStr += "''";
|
|
break;
|
|
default:
|
|
if (codePoint > 0x7f) {
|
|
escapedStr += toUTF16(codePoint); // Non-ASCII characters
|
|
} else {
|
|
escapedStr += char; // ASCII character needs no escape
|
|
}
|
|
}
|
|
}
|
|
return escapedStr;
|
|
}
|