string-formatting

This works fine, we all know that: NSString *textoutput = @"Hello"; outLabel.text = textoutput; However, what if you want to include a variable inside that NSString statement like the following: NSString *textoutput =@"Hello" Variable; In C++ I know when I cout something and I wanted to include a variable all I did was soemthing like this: cout << "Hello" << variableName << endl; So I'm trying to accomplish that with Objective-C but I don't see how. You can do some fancy formatting using the following function: NSString *textoutput = [NSString stringWithFormat:@"Hello %@", variable]; Note that

I have some WPF textblocks in a stackpanel that I want to databind and format. E.g. the following formats a date 24h style without the seconds part: <TextBlock Text="{Binding MyCustomObject, StringFormat={}{0:HH:mm}}" /> Now, I would like to bind an integer and also display the + and - sign (i.e. +6 or -4). <TextBlock Text="{Binding MyOtherCustomObject, StringFormat={}{0:+#}}" /> This however, does not work. Is this possible or do I have to write a complete converter just for this? EDIT Nikolays post led me to the answer: <TextBlock Text="{Binding MyOtherCustomObject, StringFormat={}{0:+#;-#;'

i know about sprintf but how can i use the same param in any place? example sprintf("blabla %s 11111 %s", "test"); -it say few params, but i want to place 'test' in two place without duplicate Use the %$ numbered placeholder notation: sprintf('blabla %1$s 11111 %1$s', "test"); Here, both occurrences of %1$s will be replaced with "test" . There is more on this in the sprintf() manual page . This is called "Argument swapping" and documented in example #3 here: http://php.net/sprintf Use "%1$s" , to use argument 1, you can use this multiple times within your format string, as shown in Example #4

I have the following Python code (I'm using Python 2.7.X): my_csv = '{first},{middle},{last}' print( my_csv.format( first='John', last='Doe' ) ) I get a KeyError exception because 'middle' is not specified (this is expected). However, I want all of those placeholders to be optional. If those named parameters are not specified, I expect the placeholders to be removed. So the string printed above should be: John,,Doe Is there built in functionality to make those placeholders optional, or is some more in depth work required? If the latter, if someone could show me the most simple solution I'd

I would like to get a list of all possible keyword arguments a string template might use in a substitution. Is there a way to do this other than re? I want to do something like this: text="$one is a $lonely $number." keys = get_keys(text) # keys = ('one', 'lonely', 'number') I'm writing a simple Mad-lib-like program, and I want to perform template substitution with either string.format or Template strings . I'd like to write the 'story' and have my program produce a template file of all the 'keywords' (nouns, verbs, etc.) that a user would need to produce. I know I can do this with regular