break.md

break, continue

Breaks or continues a "while", "until", "loop" or a "cursor".

until false
  # do something
  continue if f.x == 0
  break if f.x == 1
  # do something more

ref:

Break and continue may be used from outside a loop, thanks to the ref: attribute:

set l []
concurrence
  cursor tag: 'x0'
    push l 0
    stall _
  sequence
    push l 1
    break ref: 'x0'

# where l ends up containing [ 1, 0 ]

"aliasing"

A continue or a break may be "aliased", in other words stored in a local variable for reference in a sub-loop.

cursor
  set outer-continue continue
  push f.l "$(nid)"
  cursor
    push f.l "$(nid)"
    outer-continue _ if "$(nid)" == '0_2_1_0_0'

# where l yields [ '0_1_1', '0_2_0_1', '0_1_1-1', '0_2_0_1-1' ]

see also

While, until, loop and cursor.

• source
• break spec