Case methods

Upper, lower, title, and per-word case conversions.

Str offers a family of case conversions: .uc/.lc (upper/lower), .tc/.tclc (title-case the first letter), and .wordcase (title-case every word).

Title-casing #

.tc upper-cases the first character; .tclc also lower-cases the rest — useful for normalising a word.

say "hello world".tc;
say "hELLO".tclc;

Hello world
Hello

.tc touches only the first letter, so hello world becomes Hello world (the w stays lower).

wordcase — every word #

.wordcase title-cases each word, not just the first.

say "hello world".wordcase;

Hello World

Notes #

• .uc and .lc are the plain upper/lower conversions and match Rakudo.
• .fc is fold case — a canonical form for case-insensitive comparison, distinct from .lc.
• Unicode-aware: case methods handle accented letters and multi-codepoint graphemes, not just ASCII.