[kman42]

Is there an easy way to replace characters in a string? Perhaps an NSString or NSScanner method? I checked the docs, but couldn't find anything obvious. Specifically, I want to replace all of the spaces and commas with plus signs.

Thanks,
kman

[CharlesS]

Look into these two methods:

-[NSString rangeOfString: options: range:]

-[NSMutableString replaceCharactersInRange: withString:]

[lindberg]

The easy way would be:
<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
aString = [[aString componentsSeparatedByString:<font color = orange>@",<font color = red>"</font>] componentsJoinedByString:<font color = orange>@"</font>+"</font>];
</font>[/code]
and again for " ", etc. If the code is getting run a ton of times, you might want to check with -rangeOfString: that it's actually in there before going to the above work.

You might make it more efficient by creating an NSCharacterSet with a comma and space, and using -rangeOfCharaterInSet:options:range: in a loop.

You could use NSScanner as well -- just make sure to set the skip chararacter set to nil else it may skip over your spaces.

[ 04-06-2002: Message edited by: lindberg ]

[kman42]

Thanks for the good suggestions. I ended up using an NSScanner in a while loop. I used scanUpToCharactersInSet:commaAndSpaceSet to scan the string up to the comma or space into a temp string and then used stringByAppendingString:@"+" to add the plus sign. I then scanned the comma or space into NULL and repeated until the scanner was done. Works like a charm!

Now on to getting the text in certain rows of an NSTableView to be red. I've tried NSAttributedString and addAttribute value: [NSColor redColor], but I keep getting an NSColor not defined error kman

thanks,

[ 04-06-2002: Message edited by: kman42 ]

[seb2]

don't think so complicated... ;-)

in your tableviews's delegate, implement

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
- (void)tableView NSTableView *)aTableView willDisplayCell id)aCell forTableColumn NSTableColumn *)aTableColumn row int)rowIndex
</font>[/code]

and then find out whether you want to display that column/cell in red or not:

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
if (someCondition)
{
[aCell setTextColor:[NSColor redColor]];
} else {
[aCell setTextColor:[NSColor blackColor]];
}
</font>[/code]

hope that helps.