Changes: Change C++ comments to C comments

Revision as of 23:35, 24 January 2011

Tip 1010 Printable Monobook Previous Next

created 2005 · complexity basic · author Frans · version 6.0

Developers and users will often have a need to change one pattern of text to match a different pattern. This can be completed using a key map and a regular expression. For example some development requires developers to be MISRA compliant. One of the MISRA rules is //-style-comments are not acceptable. These occurrences must be replaced by /*-style-comments-*/. Adding the following mapping to the vimrc file will do this per line.

:map <F5> /\/\/<CR>xxi/*<Esc>A*/<Esc>

This will do the action per found line. Start at the beginning of the file, and repeatedly press <F5>. Alternatively, this regular expression can be used:

:map <F5> %s,//\(.*\),/*\1 */,

@@ Line 1: / Line 1: @@
-{{review}}
 {{TipImported
 |id=1010
@@ Line 9: / Line 8: @@
 |version=6.0
 |rating=-2/4
-|category1=
+|category1=Usage
-|category2=
+|category2=Text processing
 }}
-Our current development requires everything to be MISRA compliant. One of the MISRA rules is: <tt>//-style-comments</tt> are not acceptable. These occurrences must be replaced by <tt>/*-style-comments-*/</tt>. The following mapping will do this per line.
+Developers and users will often have a need to change one pattern of text to match a different pattern. This can be completed using a key map and a regular expression. For example some development requires developers to be MISRA compliant. One of the MISRA rules is <tt>//-style-comments</tt> are not acceptable. These occurrences must be replaced by <tt>/*-style-comments-*/</tt>. Adding the following mapping to the vimrc file will do this per line.
 <pre>
 :map <F5> /\/\/<CR>xxi/*<Esc>A*/<Esc>
 </pre>
-This will do the action per found line. Start at the beginning of the file, and repeatedly press <F5> (or whatever key you use) untill an error message occurs.
+This will do the action per found line. Start at the beginning of the file, and repeatedly press <F5>. Alternatively, this regular expression can be used:
-==Comments==
-This will help you:
 <pre>
-%s,//\(.*\),/*\1 */,
+:map <F5> %s,//\(.*\),/*\1 */,
 </pre>
+==Comments==
-----