[TxMt] custom indentation

I have started using Textmate for editing c source but seem to be unable to customize the indentation rules to match our code convention

Here is an example of I need indentation to work

void example_function() { short i, n = 10; for (i = 0; i < 10; i++) { do_something(i); }

do_completion(); }

I would even be happy to do without the regular c indentation rules, and have tried overriding them with empty patterns, but I still have a problem when I type the semi-colon to complete the do_completion() line as this line will get auto-indented to match the indent level of the loop block.

Thanks in advance for any help with this.

Simon