Course of Raku / Regexes and grammars / Regexes / Captures / Exercises / Initial and surname

Solution: Initial and surname

Here is a possible solution to the task.

Code

if 'J Smith' ~~ / $<initial>=(\w) ' ' $<surname>=(\w+) / {
    say ~$<surname>;
}

🦋 You can find the source code in the file initial-and-surname.raku.

Output

Smith

Comments

$<initial>=(\w) captures a single word character; $<surname>=(\w+) captures the run of letters after the space.
The surname is then read back by name as $<surname>, and the ~ prefix prints it as a plain string; without it, say $<surname> would show the match object as ｢Smith｣.

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