 Tip #1497: convert between C /* */ comments and C++ // comments
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January 31, 2007 16:14 |
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complexity: |
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intermediate |
| author: |
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Paul Ivanov |
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as of Vim: |
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5.7 |
I'm using a stubborn ansi C compiler and found having to do old /* */ C-style comments annoying, especially if i wanted to add a short little two word comment. (WARNING: this does not deal with multi-line /* */ comments)
So now I just write // C++ style comments, and hit use \c to convert them to C style comments before compilation, and \C to convert them back to C++ after compilation (easier on the eyes, \ is my leader)
put this in your .vimrc:
"c++ // to c /* */ comments
map <leader>c :%s/\/\/\(.*\)/\/*\1\*\//<CR>/
"c /* */ to c++ // comments (WARNING: this does not deal with multi-line /* */ comments)
map <leader>C :%s/\/\*/\/\//<cr>:%s/\*\///<cr>
alternatively, you can make commands out of these regular expressions:
command! CtoCpp :%s/\/\/\(.*\)/\/*\1\*\//<CR>/
command! CpptoC :%s/\/\*/\/\//<cr>:%s/\*\///<cr>
<< replace ^M characters from MSWindows file |
Delete words in a different way. (For Unix Admins) >>
Additional Notes
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info at bertram dash scharpf dot de,
February 1, 2007 3:53
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The patterns become slightly more readable when
you use another delimiter than / and \v:
%s:\v//(.*):/*\1 */:
%s://\(.*\):/*\1 */:
Remove /* and */ at once. Avoid trailing spaces.
%s:/\*\(.\{-\}\)\s*\*/://\1:
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