-- Text: concatenation, length, number-to-text conversion.
-- Text values print without quotes.
-- Note: calls can't be used as operands — bind results first (r=call arg; use r).
-- Greet by name: +"prefix" arg is a binary concat expression (safe in any position)
greet nm:t>t;+"Hello, " nm
-- Describe a number: str n returns text — must bind before using as operand
desc n:n>t;r=str n;+"Value is " r
-- Number of bytes in a word (last function — bare call is safe at EOF)
sz w:t>n;len w
-- run: greet World
-- out: Hello, World
-- run: desc 42
-- out: Value is 42
-- run: sz hello
-- out: 5