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MIME Header Q and B Encoding and Decoding

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Demonstrates how to Q and B encode/decode.

Chilkat Zig Downloads

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

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

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

    sb.append("This is a test") catch {};

    std.debug.print("{s}\n", .{try sb.getEncoded(alloc, "B", "utf-8")});
    // output is:
    // =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=

    std.debug.print("{s}\n", .{try sb.getEncoded(alloc, "Q", "iso-8859-1")});
    // output is:
    // =?utf-8?Q?This_is_a_test?=

    const sb2 = try chilkat.StringBuilder.init();
    defer sb2.deinit();

    sb2.append("=?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=") catch {};
    sb2.decode("B", "utf-8") catch {};
    std.debug.print("{s}\n", .{try sb2.getAsString(alloc)});

    // output is:
    // This is a test

    sb2.clear();
    sb2.append("=?utf-8?Q?This_is_a_test?=") catch {};
    sb2.decode("Q", "utf-8") catch {};
    std.debug.print("{s}\n", .{try sb2.getAsString(alloc)});

    // output is:
    // This is a test

    // "B" or "Q" will decode both B and Q.
    sb2.clear();
    sb2.append("=?utf-8?Q?This_is_a_test?= 123 =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=") catch {};
    sb2.decode("Q", "utf-8") catch {};
    std.debug.print("{s}\n", .{try sb2.getAsString(alloc)});

    // output is:
    // This is a test 123 This is a test
}