Zig

Decode 2-digit Hex Escaped

See more HTML-to-XML/Text Examples

Demonstrates how to replace escaped us-ascii chars such as \x7b and \x22 with the chars. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // We have the following string with some us-ascii chars escaped like this:
    const s = "\x7b\x22responseContext\x22:\x7b\x22";

    // Note: The above escaping does not conform to any standard format (as far as I know).
    // Chilkat does not have anything to decode from the above.
    // However, we can 1st transform into a standard format, and then decode..

    // JSON escapes chars outside us-ascii like this:  "Hello, \ud83d\ude03!"
    // We can transform the above to this:  "\u007b\u0022responseContext\u0022:\u007b\u0022"
    // And then decode..

    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();

    sb.append(s) catch {};
    _ = sb.replace("\\x", "\\u00");

    // Now decode from "json" escapes
    sb.decode("json", "utf-8") catch {};

    // Show the decoded string
    std.debug.print("{s}\n", .{try sb.getAsString(alloc)});

    // Here's the result: {"responseContext":{"
}