this may be a simple problem, but i need few ideas,
--------------
Old coding style:

if(a) __call_function

New coding style needed:

if(a) {
__call_function
}

---------------
When finish with this change, how to test that all changes have been done correctly. Two things, 1. there is no extra change dne except needed. 2. Every where the required change have been done.

I have find two find option which help my job,

$diff -c a.c a-new.c
***************
*** 1,4 ****
! if(a) {
! __call_function
! }
!
--- 1 ----
! if(a) __call_function

$diff -I '}' a.c a-new.c
1,4c1
< if(a) {
< __call_function
< }
<
---
> if(a) __call_function


But please let me know if there could be simpler approach.


thanks in advance

Perhaps if you express what do you want
more clear you would get the answer more
quickly

It is a kind of ambigous. Do you want
to see differences between two files in
a more simple form? I know a universal
'diff' invokation for any case

diff -duraN

I do not remember all options but I
always use this form. If you want
something else, please ask.

yes, You are right,

I tell you the story behind it.

In my source code there is no {} brackets for single line 'if' statement, but in order to match some coding style and conventions, I have to put {} for each single line if statement now.

That is why , I want a command with option whicn will help me to see the difference between old file and new file with {} brackets as minimum as possible.

If the difference is minumum i can scan the difference quickly.

I think the diff command would be your best bet.

Didn't used very much but there is a program called 'indent' which has many many parameters and formats your source code according to these.

If you could find a set of parameters to match your coding style... you could apply it and be sure it is ok.

>> If the difference is minumum i can scan the difference quickly.

so you only want to see the lines involving an if statement that was changed?

maybe piping diff through grep would help you? like a
`diff file_1 file_2 | grep if`
though that would only show you you the start of the if statement.. you could use regular expressions with grep, that would probably help more.

If you want to see more lines 'around' the diff you could use

Yeah!

Thanks to every body, who have replied to my question, i think i can make out some solution using all the inputs.

if i face any problem while going ahead, i will let you all know again.

thank