break_in_templates.nim

proc parse(input: string) =
  var i = 0

  template getch(): char =
    if i > input.high:
      break
    inc i
    input[i-1]
  
  block command:
    if getch != 'b': break
    if getch != '3': break
    if getch != '5': break
    echo "b35!"
  echo "done"

parse("b3")
parse("b35")

# Raziel% ./parse 
# done
# b35!
# done