// 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#"(?xsi) <R-PORT-PROTOTYPE .*? <short-name>PQR</short-name>
(?:
(?:
(?(1) (?!) )
.*?
<V>
( .*? ) # (1)
</V>
.*?
<PARAMETER-REF [ ] DEST="PARAMETER-DATA-PROTOTYPE"> .*? MNO1</PARAMETER-REF>
)
|
(?:
(?(2) (?!) )
.*?
<V>
( .*? ) # (2)
</V>
.*?
<PARAMETER-REF [ ] DEST="PARAMETER-DATA-PROTOTYPE"> .*? MNO2</PARAMETER-REF>
)
){1,2}
.*
"#).unwrap();
let string = " <R-PORT-PROTOTYPE **************>
<SHORT-NAME>PQR</SHORT-NAME>
<REQUIRED-COM-SPECS>
<PARAMETER-REQUIRE-COM-SPEC>
<APPLICATION-VALUE-SPECIFICATION>
<SHORT-LABEL>abc1</SHORT-LABEL>
<SW-VALUES-PHYS>
<V>80</V>
</SW-VALUES-PHYS>
</APPLICATION-VALUE-SPECIFICATION>
<PARAMETER-REF DEST=\"PARAMETER-DATA-PROTOTYPE\">**************/MNO1</PARAMETER-REF>
</PARAMETER-REQUIRE-COM-SPEC>
<PARAMETER-REQUIRE-COM-SPEC>
<APPLICATION-VALUE-SPECIFICATION>
<SHORT-LABEL>abc2</SHORT-LABEL>
<SW-VALUES-PHYS>
<V>-80</V>
</SW-VALUES-PHYS>
</APPLICATION-VALUE-SPECIFICATION>
<PARAMETER-REF DEST=\"PARAMETER-DATA-PROTOTYPE\">**************/MNO2</PARAMETER-REF>
</PARAMETER-REQUIRE-COM-SPEC>
</REQUIRED-COM-SPECS>
</R-PORT-PROTOTYPE>
";
let substitution = "MNO1=$1 , MNO2=$2";
// 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/