`STRING::ESCAPE_JSON` 1g 2024-05-07 laplante@plcb.ca GOWEB/STRING — Escape Strings for JSON

title: “STRING::ESCAPE_JSON” version: “1g” date: 2024-05-07 section: “1g” author: “laplante@plcb.ca” category: “GOWEB/STRING”

Synopsis

string::escape_json(string)
escape_json(string)
string::escapeJson(string)
escapeJson(string)

The escape_json function escapes special characters in a string so it can be safely embedded inside a JSON string value.

Characters escaped include:

Double quote (") → \"
Backslash (\) → \\
Control characters (newline, carriage return, tab, etc.) → \n, \r, \t, etc.
Unicode characters → \uXXXX (where XXXX is the Unicode code point in hexadecimal)
Certain special characters (e.g., &, <, >) are escaped to their Unicode representation (\u0026, \u003c, \u003e).

This ensures that the resulting string is valid JSON and free from syntax-breaking characters.

res={{
    escape_json("\"\n\tééèè");
    escape_json('"&<   >abc"');
}};

Returns:

res = "\"\n\tééèè"
"\"\u0026\u003c   \u003eabc\""