Zig

Get a Related Item as Text with CRLF Line Endings

Demonstrates the Chilkat Email.GetRelatedStringCrLf method, which returns the text of a related item with CRLF (\r\n) line-endings, interpreting the item's bytes using the supplied charset. It is intended for text-based related items such as style sheets. This example reads an embedded CSS style sheet with normalized CRLF line endings.

Background: Embedded text may arrive with any style of line ending — bare LF, bare CR, or CRLF. This method normalizes them all to CRLF, which is what internet protocols and many Windows tools expect, avoiding mixed-newline problems when the text is written out or re-transmitted. It is the CRLF counterpart to GetRelatedString (which uses bare CR).

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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 GetRelatedStringCrLf method, which returns the text of a related item
    // with CRLF line-endings, interpreting the bytes using the specified charset.  This is
    // intended for text-based related items such as style sheets.  The index is zero-based.

    const email = try chilkat.Email.init();
    defer email.deinit();
    email.setSubject("GetRelatedStringCrLf example");

    // The HTML references a related style sheet by name (Content-Location).
    email.setHtmlBody("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");

    // Add the related style sheet (index 0).
    email.addRelatedString2("styles.css", "body { color: navy; }\nh1 { color: teal; }", "utf-8");

    // Get the first related item (index 0) as text with CRLF line endings.
    const content = try email.getRelatedStringCrLf(alloc, 0, "utf-8");
    std.debug.print("Related item 0 text (CRLF-normalized):\n", .{});
    std.debug.print("{s}\n", .{content});
}