# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/\/\/.*|\/\*[\s\S]*?\*\/|("(\\.|[^"])*")/$1/g;t' <<< "#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.*/"
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 SED, please visit: https://www.gnu.org/software/sed/manual/html_node/The-_0022s_0022-Command.html