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Re: Slowness in Doxygen syntax

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  • Alessandro Antonello
    Hi, guys. The version is MacVim 7.4 (Aug 10, 2013). Thats the version information when typing :version in the command line. It is the Huge version with
    Message 1 of 3 , Aug 31, 2013
    • 0 Attachment
      Hi, guys.

      The version is MacVim 7.4 (Aug 10, 2013). Thats the version information when
      typing ':version' in the command line. It is the 'Huge version with MacVim
      GUI'.

      The slowness is noticed when moving or typing in the problematic commented area.
      In Insert or Normal mode.

      Below is the result of ':syntime report'. Appears that the '\c', '\ref',
      '\e' and '\b' are the culprit. This was tested in a file with 317 lines of
      Objective-C code. Sorry that I cannot post the entire file here, since it
      belongs to the company where I'm working right now. Even so, below the report,
      I put some comment blocks.

        TOTAL      COUNT  MATCH   SLOWEST     AVERAGE   NAME               PATTERN
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        0.329377   4      4       0.154978    0.082344  doxygenSpecialRefWord \(\_s\+[-:0-9A-Za-z_%=&+*/!~>|]\@<!\([-0-9A-Za-z_%=+*/!~>|#]\+[-0-9A-Za-z_%=+*/!~>|]\@!\|\
        0.262015   4      4       0.120980    0.065504  doxygenSpecialEmphasisedWord \(\_s\+[-:0-9A-Za-z_%=&+*/!~>|]\@<!\([-0-9A-Za-z_%=+*/!~>|#]\+[-0-9A-Za-z_%=+*/!~>|]\@!\|\
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        0.035615   71     0       0.001082    0.000502  objcSuperclass     \(@\(implementation\|interface\)\s*\k\+\s*:\)\@<=\s*\k*
        0.015586   88     56      0.000803    0.000177  objcMethodName     \(^\s*[-+]\s*(\_[^)]*)\)\@<=\_\s*\_\k\+
        0.015504   10     8       0.003243    0.001550  doxygenCodeWord    \_s\@<=[-:0-9A-Za-z_%=&+*/!~>|]\@<!\([-0-9A-Za-z_%=+*/!~>|#]\+[-0-9A-Za-z_%=+*/!~>|]\@!\|\
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        0.000913   562    0       0.000004    0.000002  cPreProc           ^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)
        0.000883   562    0       0.000006    0.000002  cDefine            ^\s*\(%:\|#\)\s*\(define\|undef\)\>
        0.000880   562    0       0.000004    0.000002  cDefine            ^\s*\(%:\|#\)\s*\(define\|undef\)\>
        0.000855   562    0       0.000004    0.000002  cCppOutWrapper     ^\s*\(%:\|#\)\s*if\s\+0\+\s*\($\|//\|/\*\|&\)
        0.000855   562    0       0.000008    0.000002  cPreCondit         ^\s*\(%:\|#\)\s*\(if\|ifdef\|ifndef\|elif\)\>
        0.000852   116    116     0.000020    0.000007  objcMethodArg      )\@<=\s*\k\+
        0.000849   562    0       0.000007    0.000002  cCppInWrapper      ^\s*\(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\($\|//\|/\*\||\)
        0.000764   122    0       0.000013    0.000006  cNumbers           \<\d\|\.\d
        0.000700   148    108     0.000011    0.000005  objcMethodColon    \k\+\s*:
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        0.000013   20     18      0.000001    0.000001  doxygenStartSpecial \*/
        0.000012   12     0       0.000002    0.000001  doxygenOtherLink   \<link\>
        0.000012   32     0       0.000001    0.000000  doxygenParamDirection \v\[(\s*in>((]\s*\[|\s*,\s*)out>)=|out>((]\s*\[|\s*,\s*)in>)=)\]
        0.000008   14     10      0.000001    0.000001  doxygenSpecialEmphasisedWord e
        0.000008   14     14      0.000001    0.000001  doxygenSpecialCodeWord c
        0.000008   16     8       0.000001    0.000001  objcImported       "
        0.000007   12     0       0.000001    0.000001  doxygenFormula     f\[
        0.000007   12     0       0.000001    0.000001  doxygenFormula     f\$
        0.000006   16     0       0.000001    0.000000  objcImported       <[-_0-9a-zA-Z.\/]*>
        0.000006   12     4       0.000001    0.000001  doxygenSpecialRefWord ref
        0.000006   22     0       0.000001    0.000000  doxygenPrevL       <
        0.000005   12     0       0.000001    0.000000  doxygenSpecialEmphasisedWord em
        0.000005   14     8       0.000001    0.000000  doxygenSpecialArgumentWord a
        0.000004   11     0       0.000001    0.000000  cCommentL          \\$
        0.000004   12     2       0.000001    0.000000  doxygenSpecialCodeWord p
        0.000004   4      4       0.000001    0.000001  cIncluded          "
        0.000003   14     4       0.000001    0.000000  doxygenSpecialBoldWord b
        0.000003   8      0       0.000001    0.000000  objcSpecial        %@
        0.000003   4      4       0.000001    0.000001  cIncluded          "
        0.000002   4      0       0.000001    0.000001  cIncluded          <[^>]*>
        0.000002   8      0       0.000001    0.000000  objcImported       \\\\\|\\"
        0.000002   4      0       0.000001    0.000001  cIncluded          \\\\\|\\"
        0.000001   8      8       0.000001    0.000000  objcImported       "
        0.000000   2      2       0.000000    0.000000  objcString         "
        0.000000   2      0       0.000000    0.000000  objcString         \\\\\|\\"

        1.823260   39809

      Comment blocks (they are in Portuguese), these are the problematic ones:

      /**
       * Define ou retorna a instância da implementação de HCRequestHandler
       * responsável pela comunicação com o equipamento.
       * Quando a View é criada, esta propriedade é \b nil até que uma referência
       * seja definida pela implementação especializada da tela.
       * \note A referência deste objeto será retido nesta operação.
       *//* --------------------------------------------------------------------- */

      /**
       * Obtém a instância do controle ISlider responsável pela dimerização.
       * Esta propriedade é \b nil até que o método \c showSliderDimmer seja
       * executado.
       *//* --------------------------------------------------------------------- */

      /**
       * Inicializa esta instância da View.
       * \param aRect retângulo de tamanho e localização da View. Normalmente
       * preenchendo toda a área interna do \e controller.
       * \param type Código do tipo do equipamento representado por esta View. Os
       * códigos estão disponíveis na lista \ref hc_equipments.
       * \param avID Identificador do equipamento conforme lista recebida do
       * console.
       * \return Este objeto inicializado.
       *//* --------------------------------------------------------------------- */

      /**
       * Chamada quando o usuário faz uma alteração na posição do slider.
       * \param position Posição atual do slider. Varia de 0 à 100.
       * \remarks Esta função pode ser sobrescrita por classes derivadas para
       * obter o valor atualizado imediatamente. A implementação de HCAvdView envia
       * a mensagem de alteração ao console e atualiza a propriedade \c
       * generalLights do aplicativo.
       *//* --------------------------------------------------------------------- */

      /**
       * Intercepta a notificação \c SM_CONNECTING da comunicação.
       * \param socketMsg Objeto que carrega a mensagem.
       *//* --------------------------------------------------------------------- */

      Thanks for your attention.



      2013/8/31 Dominique Pellé <dominique.pelle@...>
      Dominique Pellé wrote:

      > Alessandro Antonello <antonello.ale@...> wrote:
      >
      >> Hi all.
      >>
      >> I found some glitches in the new MacVim version and I was wondering if
      >> someone else already saw something like this. I talked about MacVim because
      >> I
      >> couldn't test the Windows version yet.
      >>
      >> I usually work with ObjC files and I set 'syntax' in the modeline, like
      >> this:
      >>
      >> // vim:syntax=objc.doxygen
      >>
      >> I use Doxygen for project documentation for years and it is part of my life
      >> now. The odd glitch is that, the documented comment slows down Vim
      >> substantially. Not in every places. Only when the cursor is in a comment
      >> block
      >> and if that comment block has a Doxygen command like @c (code), @b (bold),
      >> @i
      >> (italic) or @ref (cross reference). Commands like @param or @return doesn't
      >> has the same behavior. The slowness also happens when using \c, \b, \i,
      >> \ref.
      >> That is, the '@' character is not the culprit.
      >>
      >> The slower [G]Vim happens only when the cursor is in the commented block.
      >> Soon
      >> the cursor gets out of it, the movement responses are back to normal.
      >>
      >> I try to disable some plugins, like UltiSnips and clang_complete, because I
      >> installed them about a week ago. But that doesn't solve the problem.  So, as
      >> a
      >> work around, I came up with:
      >>
      >> :set syntax=objc
      >> :set regexpengine=1
      >> :set syntax=objc.doxygen
      >>
      >> The problem disappeared.
      >>
      >> I took a look at the Doxygen syntax from the new MacVim version and it
      >> didn't
      >> change a bit. So, I think this has something to do with the new regular
      >> expression engine.
      >>
      >> Someone saw this problem yet?
      >>
      >> Regards.
      >
      > Which version of Vim are you using?
      >
      > Vim-7.4.* introduced the  :syntime  command which is
      > useful for finding what regexp are the bottlenecks.  See
      > :help :syntime
      >
      > Dominique

      If you can send an example of doxygen file that shows
      the slow behavior that would help others to reproduce the
      issue.

      Dominique

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