PPT Slide

SNOBOL4

PAT = (‘SUBROUTINE’ | ‘FUNCTION’) ARBNO(‘ ‘)

SPAN(‘ABCDEFGHIJKLMNOPQRSTUVWXYZ

0123456789’) . NAME

IN LINE = INPUT :F(END)

LINE ‘C’ :S(IN)

LINE PAT :S(NEW)

CONT

LINE LEN(65) . LINE2

OUTPUT = LINE2 NAME N

N = N + 10 :(IN)

NEW

(NAME ‘000000’) LEN(6) . NAME

OUTPUT =

OUTPUT = ‘STARTING NEW ROUTINE’

N = 0 :(CONT)

END

• excellent string manipulation facilities

• automatic pattern matching, built-in functions

• user-defined structures

• recursion

C.11

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