forked from aniani/vim
fda3729a06
Problem: With some regexp patterns the NFA engine uses many states and
becomes very slow. To the user it looks like Vim freezes.
Solution: When the number of states reaches a limit fall back to the old
engine. (Christian Brabandt)
14 lines
487 B
VimL
14 lines
487 B
VimL
"Test for benchmarking the RE engine
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so small.vim
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if !has("reltime") | finish | endif
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func! Measure(file, pattern, arg)
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for re in range(3)
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let sstart=reltime()
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let cmd=printf("../vim -u NONE -N --cmd ':set re=%d'".
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\ " -c 'call search(\"%s\", \"\", \"\", 10000)' -c ':q!' %s", re, escape(a:pattern, '\\'), empty(a:arg) ? '' : a:arg)
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call system(cmd. ' '. a:file)
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$put =printf('file: %s, re: %d, time: %s', a:file, re, reltimestr(reltime(sstart)))
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endfor
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endfunc
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