Conditionals

if score >= 90
  println('A')
elif score >= 80
  println('B')
else
  println('C or below')
endif

elif and else are optional and elif can repeat. Every if ends with endif.

Conditions

A condition is one comparison between two expressions: ==, !=, <, >, <=, >=. Both sides can be full expressions, including function calls, array reads and dereferences:

if strlen(name) > 3
  println('long name')
endif
if scores[0] == *r
  println('match')
endif

Numbers compare numerically and two strings compare lexicographically. A bare value (if x) and boolean operators (and, or, not) do not exist.

Nesting

Blocks nest to any depth. Use nested ifs in place of and:

if age >= 18
  if hasTicket == 1
    println('welcome')
  endif
endif