Objective-C

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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Objective-C

#import <CkoEmail.h>
#import <NSString.h>

//  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.

CkoEmail *email = [[CkoEmail alloc] init];
email.Subject = @"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" str: @"body { color: navy; }\nh1 { color: teal; }" charset: @"utf-8"];

//  Get the first related item (index 0) as text with CRLF line endings.
NSString *content = [email GetRelatedStringCrLf: [NSNumber numberWithInt: 0] charset: @"utf-8"];
NSLog(@"%@",@"Related item 0 text (CRLF-normalized):");
NSLog(@"%@",content);