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[functional-tests/regex] remove match from the loop

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This commit is contained in:
Joe Thornber 2017-08-18 19:05:40 +01:00
parent ca6a036697
commit 2fb7eb265f
1 changed files with 32 additions and 20 deletions
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34
functional-tests/regex.scm
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@ -201,35 +201,47 @@
(set! y tmp)))))
(define (match-rx code txt)
(fmt #t (dsp "running ") (pretty code) nl)
; (fmt #t (dsp "running ") (pretty code) nl)
(call/cc
(lambda (k)
(let ((code-len (vector-length code)))
(let ((threads (mk-thread-set code-len))
(next-threads (mk-thread-set code-len)))
(add-thread! threads 0)
(string-iter (in-c txt)
(fmt #t (dsp "processing: ") (wrt in-c) nl)
(while (i (pop-thread! threads))
(match (vector-ref code i)
(('match) (k #t))
(define (compile-instr instr)
(match instr
(('match)
(lambda (_ pc) (k #t)))
(('char c)
(lambda (in-c pc)
(when (char=? c in-c)
(add-thread! next-threads (+ 1 i))))
(add-thread! next-threads (+ 1 pc)))))
(('jmp l) (add-thread! threads l))
(('jmp l)
(lambda (in-c pc)
(add-thread! threads l)))
(('split l1 l2)
(begin
(lambda (in-c pc)
(add-thread! threads l1)
(add-thread! threads l2)))))
;; compile to thunks to avoid calling match in the loop.
(let ((code (vector-copy code)))
(upto (n code-len)
(vector-set! code n (compile-instr (vector-ref code n))))
(add-thread! threads 0)
(string-iter (in-c txt)
; (fmt #t (dsp "processing: ") (wrt in-c) nl)
(while (pc (pop-thread! threads))
((vector-ref code pc) in-c pc))
(if (no-threads? next-threads)
(k #f)
(begin
(swap threads next-threads)
(clear-thread-set! next-threads))))
(clear-thread-set! next-threads)))))
(any-matches? threads code))))))
)