string-formatting

I've seen on this site a StringBuilder code sample illustrating AppendFormat usage: using System; using System.Text; class Program { static int[] _v = new int[] { 1, 4, 6 }; static void Main() { StringBuilder b = new StringBuilder(); foreach (int v in _v) { b.AppendFormat("int: {0:0.0}{1}", v, Environment.NewLine); } Console.WriteLine(b.ToString()); } } === Output of the program === int: 1.0 int: 4.0 int: 6.0 Where can I find documentation on those advanced rules for string formatting? Composite Formatting Standard Numeric Format Strings Custom Numeric Format Strings Standard Date and Time

I want to format a c string like printf does. For example: char string[] = "Your Number:%i"; int number = 33; // String should now be "Your Number:33" Is there any library or a good way I could do this? int main() { char str[] = "Your Number:%d"; char str2[1000]; int number = 33; sprintf(str2,str,number); printf("%s\n",str2); return 0; } Output: ---------- Capture Output ---------- > "c:\windows\system32\cmd.exe" /c c:\temp\temp.exe Your Number:33 > Terminated with exit code 0. sprintf - http://linux.die.net/man/3/sprintf Greenonline For debugging my Arduino sketches, I habitually use this

Okay before I get right into my question does anyone know if there is a tool for building string formats? What I'm thinking is something like a pretty simple user interface where you choose whether you want to display commas, zero values, dollar signs etc and then it spits out the stringformat for you. If there is one I'd love to know about it. If there's not it's the sort of thing people like me would love! My question is. What is the string format for displaying an integer with comma separators for thousands, no decimal places and nothing for zero values. I know the string format for an

Assume that n = u"Tübingen" repr(n) # `T\xfcbingen` # Unicode i = 1 # integer The first of the following files throws UnicodeEncodeError: 'ascii' codec can't encode character u'\xfc' in position 82: ordinal not in range(128) When I do n.encode('utf8') it works. The second works flawless in both cases. # Python File 1 # #!/usr/bin/env python -B # encoding: utf-8 print '{id}, {name}'.format(id=i, name=n) # Python File 2 # #!/usr/bin/env python -B # encoding: utf-8 print '%i, %s'% (i, n) Since in the documentation it is encouraged to use format() instead of the % format operator, I don't

How can I use variables to format my variables? cart = {"pinapple": 1, "towel": 4, "lube": 1} column_width = max(len(item) for item in items) for item, qty in cart.items(): print "{:column_width}: {}".format(item, qty) > ValueError: Invalid conversion specification or (...): print "{:"+str(column_width)+"}: {}".format(item, qty) > ValueError: Single '}' encountered in format string What I can do, though, is first construct the formatting string and then format it: (...): formatter = "{:"+str(column_width)+"}: {}" print formatter.format(item, qty) > lube : 1 > towel : 4 > pinapple: 1 Looks