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I’m writing a HTML editor, I have some code that inserts some HTML code in the textview, the code is this “” but it says I have all these undeclared functions.

That is one of the most insightful and interesting questions I have ever seen on General/CocoaDev. :)

I just ran into this last night and I thought it was great, so I’ll have to post it here now.


I really hate to dignify your question with an answer. Here it is: escape the double quotes. And if you don’t know what that means, hide. Hide now.

Ok, let me try this again. My code looks like this General/NSString *image; image = @””; [textView insertText:image]; And my errors are this

*error: invalid operands to binary / *‘htmledit’ undeclared *error: parse error before string constant

I really need help with this.


Hey Josha,

You really need to brush up on your basic C programming skills. String assignments and string formating are topics you need to understand before even thinking about working with HTML. I guess you don’t know what an escape sequence is. This is the root of your problem.

Read the first 10 pages of “The C Programming Language” by Kernighan & Ritchie (ISBN 0131103709). In fact buy this book and keep it near your computer at all times.

Here’s a link to get you started: —- I sort of /n escape thing is, but how do I implement it in the code in question? —-

[textView insertText:@”<img src="/images/htmledit.gif">”]; <– you really didn’t help him with this

I’m surprised you haven’t run into this a dozen times by now if you’re writing an HTML editor.

Thank you so much for all of you help! It works! : )

He is only going to come back and ask again without learning anything if you keep feeding him the code.

I was feeding him for a day so that when he’s hungry tomorrow he’ll come back for fishing lessons.

Don’t you enjoy making fun of me! : P


One of them does; the other is more interested in helping.

I think everyone does, we just don’t want to help him write all his code.

I’m not asking you to write my code, I’m just asking things that I need help with.


If you get sick of escaping your quotes, instead of @”<img src="/images/htmledit.gif">”; you can just use single quotes: @””; It’s valid XML