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Re: NFA regexp engine problem (multi-line regexp)

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  • Bram Moolenaar
    ... I can reproduce it by searching for the pattern: / v^.* .(.*) n(.* . 1 n)* zs.+( 1)@
    Message 1 of 2 , Jun 25, 2013
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      Lech Lorens wrote:

      > I have a list of files grouped by file extension. I am trying to create
      > a fold for each of the groups. For this purpose I created the following
      > Vim function:
      > function! FoldByExtension()
      > let s:searchSave = @/
      > let s:wrapscanSave = &ws
      > set nowrapscan
      > normal zE
      > 1
      > while 1
      > try
      > .,/\v^.*\.(.*)\n(.*\.\1\n)*\zs.+(\1)@<!$/-1fold
      > normal nj
      > catch /E385/
      > break
      > endtry
      > endwhile
      > .,$fold
      > let &ws = s:wrapscanSave
      > let @/ = s:searchSave
      > endfunction
      >
      > With re=1 Vim correctly processes the following list:
      > #v+
      > foo.bat
      > bar.bat
      > baz.bat
      > foo.com
      > bar.com
      > baz.com
      > foo.txt
      > bar.txt
      > baz.txt
      > #v-
      > creating 3 folds, 3 elements each. With re=2 it creates a single fold
      > containing all the lines.

      I can reproduce it by searching for the pattern:

      /\v^.*\.(.*)\n(.*\.\1\n)*\zs.+(\1)@<!$


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