scripting - Perl Script for changing commented llines from c++ to Ansi C style -

i having multiple c source files. in files, comments used in c++ style(i.e //). these want change in c style(/* */). instead of changing manually, there scripts this. if any,let me know, thank full you.

a quick-and-dirty solution sed 's=//\(.*\)$=/*\1 */=.

this solution not robust because // may occur inside strings , other comments.

a robust solution needs (partial) c lexical analyzer. however, 1 can argue there no real solution problem because these 2 types of comments incompatible.

consider example http://lua-users.org/lists/lua-l/2013-04/msg00310.html.

int x = 5 //* strange construction */ + 5       + 5; 

x 6 in old-style ansi c, 10 if compiler accepts '//' comments.