// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r#"(?:\/\/(?:\\\n|[^\n])*\n)|(?:\/\*[\s\S]*?\*\/)|((?:R"([^(\\\s]{0,16})\([^)]*\)\2")|(?:@"[^"]*?")|(?:"(?:\?\?'|\\\\|\\"|\\\n|[^"])*?")|(?:'(?:\\\\|\\'|\\\n|[^'])*?'))"#).unwrap();
let string = "// /*
/*
This is a multi line comment
// <- ignored since in a comment */
// \"abc\" word \"
// This is a single line comment
char cha1[] = \"This is a string containing a combination //\",
cha2[] = \"This has /* a fake comment */ in it\",
cha3[] = \"This is tough because of (ignore this //) \\
line continueation\",
cha4[] = \"Handle comments in strings with \\\" escaped quotes\\
and escaped escaped escapes \\\\\";
// This is a single line comment \\
continuing on the next line
void main()
{
int chInt = '\\\\b\\'';
printf(\"Hello world!\");
cpp11_1(R\"xy(\"/**/)xy\");
cpp11_2(R\"(\"/**/)\");
cS(@\"End at the right place\\\" /*and ignore this */);
return 0;
}
";
let substitution = "\\1";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", 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 Rust, please visit: https://docs.rs/regex/latest/regex/