Regular expression to align comments
I have a huge file with c structures with comments that are not aligned like below.
// Structure 1
{ 1 , //Comment 0
"ABC", // Comment 1
{ 480 , 440 }, // Comment 2
{ 2000 , 4000 , 0 , 0 , 0 , 0 }, // Comment 3
{ 800 , 400 , 800 , 4000 , 0 , 0 }, // Comment 4
I want to make it look like:
// Structure 1
{ 1 , //Comment 0
"ABC", // Comment 1
{ 480 , 440 }, // Comment 2
{ 2000 , 4000 , 0 , 0 , 0 , 0 }, // Comment 3
{ 800 , 400 , 800 , 4000 , 0 , 0 }, // Comment 4
since the file is very large I don't want to do it manually... Any regular expression that can do this? thank you.
// Structure 1
{ 1 , //Comment 0
"ABC", // Comment 1
{ 480 , 440 }, // Comment 2
{ 2000 , 4000 , 0 , 0 , 0 , 0 }, // Comment 3
{ 800 , 400 , 800 , 4000 , 0 , 0 }, // Comment 4
I want to make it look like:
// Structure 1
{ 1 , //Comment 0
"ABC", // Comment 1
{ 480 , 440 }, // Comment 2
{ 2000 , 4000 , 0 , 0 , 0 , 0 }, // Comment 3
{ 800 , 400 , 800 , 4000 , 0 , 0 }, // Comment 4
since the file is very large I don't want to do it manually... Any regular expression that can do this? thank you.
ddrudik
Have you looked at Perltidy? It might work for the purpose.
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ASKER
Thank you. That works to some extent. But, still tab introduces some problems. How can I modify this so that I can say I want to move the comments to say column 50.
Try this:
perl -ne 'm{(.*?)\s+(//.*)}; $s = ((50 - length($1)) > 0 ? 50-length($1):0); printf("%s%${s}s\n", $1, $2)' filenameASKER CERTIFIED SOLUTION
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