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34 lines
807 B
34 lines
807 B
4 months ago
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echo T.recache: test re cache in b.c
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# thanks to ross ridge for this horror
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awk=${awk-../a.out}
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echo b >foo1
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$awk '
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BEGIN {
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#
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# Fill up DFA cache with run-time REs that have all been
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# used twice.
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#
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CACHE_SIZE=64
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for(i = 0; i < CACHE_SIZE; i++) {
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for(j = 0; j < 2; j++) {
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"" ~ i "";
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}
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}
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#
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# Now evalutate an expression that uses two run-time REs
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# that have never been used before. The second RE will
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# push the first out of the cache while the first RE is
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# still needed.
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#
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x = "a"
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reg1 = "[Aa]"
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reg2 = "A"
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sub(reg1, x ~ reg2 ? "B" : "b", x)
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print x
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}
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' >foo2
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diff foo1 foo2 || echo 'BAD: T.recache'
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