Zig

Get a Mail-Merge Replacement String by Pattern

Demonstrates the Chilkat Email.GetReplaceString2 method, which returns the replacement string for a previously-defined pattern/replacement pair, looked up by the pattern itself (a mail-merge feature). This example defines two pairs and looks up the replacement for one pattern by name.

Background: Where GetReplaceString fetches a replacement by its numeric position, GetReplaceString2 fetches it by the pattern — convenient when you already know the token (say FIRST_NAME) and just want its configured substitution without scanning the whole list.

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

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

    // Demonstrates the GetReplaceString2 method, which returns the replacement string for a
    // previously-defined pattern/replacement pair, looked up by the pattern itself (a
    // mail-merge feature).

    const email = try chilkat.Email.init();
    defer email.deinit();
    email.setSubject("Hello FIRST_NAME");
    email.setBody("Dear FIRST_NAME, welcome to CITY.");

    email.setReplacePattern("FIRST_NAME", "John") catch {};
    email.setReplacePattern("CITY", "Denver") catch {};

    // Look up the replacement for a specific pattern.
    const repl = try email.getReplaceString2(alloc, "FIRST_NAME");
    std.debug.print("FIRST_NAME -> {s}\n", .{repl});
}