To: vim_dev@googlegroups.com

Subject: Patch 7.3.1194

Fcc: outbox

From: Bram Moolenaar <Bram@moolenaar.net>

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------------

Patch 7.3.1194

Problem:    Yaml highlighting is slow.

Solution:   Tune the estimation of pattern failure chance.

Files:	    src/regexp_nfa.c

*** ../vim-7.3.1193/src/regexp_nfa.c	2013-06-14 21:15:21.000000000 +0200

--- src/regexp_nfa.c	2013-06-14 22:14:17.000000000 +0200

***************

*** 4686,4691 ****

--- 4686,4703 ----

  	    /* empty match works always */

  	    return 0;

+ 	case NFA_START_INVISIBLE:

+ 	case NFA_START_INVISIBLE_FIRST:

+ 	case NFA_START_INVISIBLE_NEG:

+ 	case NFA_START_INVISIBLE_NEG_FIRST:

+ 	case NFA_START_INVISIBLE_BEFORE:

+ 	case NFA_START_INVISIBLE_BEFORE_FIRST:

+ 	case NFA_START_INVISIBLE_BEFORE_NEG:

+ 	case NFA_START_INVISIBLE_BEFORE_NEG_FIRST:

+ 	case NFA_START_PATTERN:

+ 	    /* recursive regmatch is expensive, use low failure chance */

+ 	    return 5;

+ 

  	case NFA_BOL:

  	case NFA_EOL:

  	case NFA_BOF:

***************

*** 5264,5270 ****

  		    skip_lid = nextlist->id;

  #endif

  		}

! 		else if(state_in_list(thislist,

  					  t->state->out1->out->out, &t->subs))

  		{

  		    skip = t->state->out1->out->out;

--- 5276,5282 ----

  		    skip_lid = nextlist->id;

  #endif

  		}

! 		else if (state_in_list(thislist,

  					  t->state->out1->out->out, &t->subs))

  		{

  		    skip = t->state->out1->out->out;

*** ../vim-7.3.1193/src/version.c	2013-06-14 21:22:33.000000000 +0200

--- src/version.c	2013-06-14 22:26:49.000000000 +0200

***************

*** 730,731 ****

--- 730,733 ----

  {   /* Add new patch number below this line */

+ /**/

+     1194,

  /**/

-- 

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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\

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