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   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///