// 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"(?:(?<=int|float|String|double|char|long)(?:\s+[a-zA-Z_$][\w$]*\s*)|(?<=\G,)(?:\s*[a-zA-Z_$][\w$]*\s*))(?=,|;|=)").unwrap();
let string = "int a= 100;
float b = 4.5;
long valid_name = 5435435345345
long longest = 453543543543;
char b = 'a';
String str = \"dfssffdsdfsd\"
int d,f,g;
int a,f,frhg = 0;
String string = \"a,b,c,d,e,f\"
int a = 45
long c;
int a, f, f = 5
int a , b , d = 6
float invalid name= 100.10;
int b ^&& = 5
a = d;
String b b b b = \"dfdf\"
double c - 12.454545645;
double d + 56;
";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
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/