Objective-C

URL-Encode a MIME Body

Demonstrates the Chilkat Mime.UrlEncodeBody method, which replaces the current body with an application/x-www-form-urlencoded-style representation using the named charset. The only argument is the charset; it is a void method.

Background: This transforms the body into the form-encoding used by HTML form submissions — spaces to +, reserved characters to percent-escapes — interpreting the text through the given charset first so non-ASCII characters encode correctly. It is a niche operation for constructing form-style payloads within a MIME part.

Chilkat Objective-C Downloads

Download Chilkat for Objective-C

Objective-C

#import <CkoMime.h>
#import <NSString.h>

BOOL success = NO;

//  Demonstrates the Mime.UrlEncodeBody method, which replaces the current body with an
//  application/x-www-form-urlencoded representation using the named charset.  The only argument is
//  the charset.  It is a void method.

CkoMime *mime = [[CkoMime alloc] init];

success = [mime SetBodyFromPlainText: @"name=John Doe & city=New York"];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

//  URL-encode the body: spaces become "+", reserved characters become %-escapes.
[mime UrlEncodeBody: @"utf-8"];

NSString *encodedBody = [mime GetBodyDecoded];
if (mime.LastMethodSuccess == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

NSLog(@"%@",encodedBody);