re = /\/\/.*|\/\*[\s\S]*?\*\/|("(\\.|[^"])*")/
str = '#include <stdio.h>
int main(int argc, char** argv)
{
// this comment will be removed
if (argc > 1) {
printf("Too many arguments.\\n"); // this too will be removed
return 1;
}
printf("Please vist http://this.will.not.be.removed.com\\n");
printf("/* This will stay */\\n");
printf("\\"/* This will stay too */\\"\\n");
return 0;
}
/*
this shall disappear
*/
#include <string>
int main(int argc, char** argv)
{
string foo = ""/*remove that!**/;
// Remove /* this
int butNotThis = 42;
// But do */ remove this
int bar = 4 /*remove this*/* 3; // but don\'t remove that 3. */
return 0;//just a comment
}/*end of the file has been reached.*/'
subst = '$1'
result = str.gsub(re, subst)
# Print the result of the substitution
puts result
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html