Warning: I no longer use Textmate and so this is effectively abandonware
Textmate's indent functionality does a reasonable job of formatting your code BUT there is a great deal of room for improvement.
Code Beautifier only supports Ruby at present but does improve upon Textmate's indent functionality, in particular it is better at indenting multiline statements and cleans up white space.
If you have git installed your machine then run this:
cd ~/Library/Application\ Support/TextMate/Bundles git clone git://github.com/mocoso/code-beautifier.tmbundle.git Code\ Beautifier.tmbundle
Then select 'Bundles > Bundle Editor > Reload Bundles' from Textmate's menus
- Does recognize strings with custom delimiters
- Does not handle multiline blocks within implied brackets
- Does not indent continuing line statements within brackets correctly