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;;;; sgrep.scm - grepping benchmark
(import chicken.io chicken.irregex chicken.port)
(define big-string
(with-input-from-file (optional (command-line-arguments) "compiler.scm") read-string))
(define-syntax bgrep
(syntax-rules ()
((_ n expr)
(time
(do ((i n (fx- i 1)))
((eq? i 0))
(with-input-from-string big-string
(lambda ()
(let ((h 0)
(c 0))
(do ((line (read-line) (read-line)))
((eof-object? line))
(set! c (fx+ c 1))
;(when (zero? (fxmod c 500)) (print* "."))
(when (irregex-search expr line)
(set! h (fx+ h 1))))
h))))))))
(define-syntax rx1
(syntax-rules ()
((_) "\\((.*), (.*)\\)")))
(define-syntax rx2
(syntax-rules ()
((_) '(: #\( (submatch (* any)) ", " (submatch (* any))))))
(bgrep 1 (rx1))
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