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70103Re: NFA pretty dump

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  • Bram Moolenaar
    May 25, 2013
      Taro Muraoka wrote:

      > I wrote a patch to make NFA state dump more pretty.
      >
      > Before patch:
      >
      > > (11) NFA_MOPEN(0) (-991) (id=11)
      > > (10) NFA_SPLIT (-1024) (id=10)
      > > ( 8) NFA_MOPEN(1) (-990) (id=8)
      > > ( 7) NFA_SPLIT (-1024) (id=7)
      > > ( 1) CHAR(f) (102) (id=1)
      > > ( 2) CHAR(o) (111) (id=2)
      > > ( 3) CHAR(o) (111) (id=3)
      > > ( 9) NFA_MCLOSE(1) (-980) (id=9)
      > > (10) NFA_SPLIT (-1024) (id=10)
      > > ( 4) CHAR(b) (98) (id=4)
      > > ( 5) CHAR(a) (97) (id=5)
      > > ( 6) CHAR(r) (114) (id=6)
      > > ( 9) NFA_MCLOSE(1) (-980) (id=9)
      > > (12) NFA_MCLOSE(0) (-981) (id=12)
      > > ( 0) NFA_MATCH (-1023) (id=0)
      >
      > After patch:
      >
      > > (11) NFA_MOPEN(0) (-991) (id=11)
      > > (10) +-NFA_SPLIT (-1024) (id=10)
      > > ( 8) +-NFA_MOPEN(1) (-990) (id=8)
      > > ( 7) | +-NFA_SPLIT (-1024) (id=7)
      > > ( 1) | +-CHAR(f) (102) (id=1)
      > > ( 2) | | +-CHAR(o) (111) (id=2)
      > > ( 3) | | +-CHAR(o) (111) (id=3)
      > > ( 9) | | +-NFA_MCLOSE(1) (-980) (id=9)
      > > (10) | | +-NFA_SPLIT (-1024) (id=10)
      > > ( 4) | +-CHAR(b) (98) (id=4)
      > > ( 5) | +-CHAR(a) (97) (id=5)
      > > ( 6) | +-CHAR(r) (114) (id=6)
      > > ( 9) | +-NFA_MCLOSE(1) (-980) (id=9)
      > > (12) +-NFA_MCLOSE(0) (-981) (id=12)
      > > ( 0) +-NFA_MATCH (-1023) (id=0)
      >
      > This will be great help to debugging NFA with complex patterns.

      Thanks.

      The change to move fclose() into nfa_print_state() doesn't work though.


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