UIWebView+Markdown category.

UIWebView+Markdown.m

//
//  UIWebView+Markdown.m
//  DropTextwiki
//
//  Created by Daniel Hjort on 6/5/11.
//  Copyright 2011 Patchwork Solutions AB. All rights reserved.
//

#import "UIWebView+Markdown.h"
#import "html.h"


@implementation UIWebView (UIWebView_Markdown)

-(void)loadMarkdownString:(NSString *)string baseURL:(NSURL *)baseURL
{
    
    NSString *htmlString = [UIWebView htmlFromMarkdown:string];
    
    [self loadHTMLString:htmlString baseURL:baseURL];
}

+(NSString *)htmlFromMarkdown:(NSString *)markdown {
    
    struct mkd_renderer renderer;
    const char *c = [markdown UTF8String];
    char *html = malloc(256);
    
    VOLATILE_BUF(ib, c);

    struct buf ob;
    memset(&ob, 0, sizeof(struct buf));
    ob.data = html;
    ob.asize = 256;
    
    upshtml_renderer(&renderer, 0);
    
    ups_markdown(&ob, &ib, &renderer, 0);
    
    NSString *htmlString  = [[[NSString alloc] initWithData:[NSData dataWithBytes:ob.data length:ob.size] encoding:NSUTF8StringEncoding] autorelease];
    
    upshtml_free_renderer(&renderer);
    free(html);
    
    return htmlString;
}

@end