Text between: Difference between revisions

=={{header|Rust}}==

<lang Rust>

//Use Into<String> so input can be String, &str or anything else that implements Into<String>

fn text_between<S: Into<String>>(input: S, start: S, end: S) -> String {

//Convert to strings

let search_str = input.into();

let start_str = start.into();

let end_str = end.into();

let start_idx = if start_str.as_str() == "start" {

0

} else {

let start_point = search_str.find(start_str.as_str());

if start_point.is_none() {

return String::from("");

}

start_point.unwrap() + start_str.len()

};

let remaining = &search_str[start_idx..];

let end_idx = if end_str.as_str() == "end" {

remaining.len()

} else {

remaining.find(end_str.as_str()).unwrap_or(remaining.len())

};

return remaining[..end_idx].to_string()

}

fn main() {

println!("'{}'", text_between("Hello Rosetta Code world", "Hello ", " world"));

println!("'{}'", text_between("Hello Rosetta Code world", "start", " world"));

println!("'{}'", text_between("Hello Rosetta Code world", "Hello", "end"));

println!("'{}'", text_between("</div><div style=\"chinese\">你好嗎</div>", "<div style=\"chinese\">", "</div>"));

println!("'{}'", text_between("<text>Hello <span>Rosetta Code</span> world</text><table style=\"myTable\">", "<text>", "<table>"));

println!("'{}'", text_between("<table style=\"myTable\"><tr><td>hello world</td></tr></table>", "<table>", "</table>"));

println!("'{}'", text_between("The quick brown fox jumps over the lazy other fox", "quick ", " fox"));

println!("'{}'", text_between("One fish two fish red fish blue fish", "fish ", " red"));

println!("'{}'", text_between("FooBarBazFooBuxQuux", "Foo", "Foo"));

}

</lang>

{{out}}

<pre>

'Rosetta Code'

'Hello Rosetta Code'

' Rosetta Code world'

'你好嗎'

'Hello <span>Rosetta Code</span> world</text><table style="myTable">'

''

'brown'

'two fish'

'BarBaz'

</pre>