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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.1145
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.1145
+Problem:    New regexp engine: addstate() is called very often.
+Solution:   Optimize adding the start state.
+Files:	    src/regexp_nfa.c
+
+
+*** ../vim-7.3.1144/src/regexp_nfa.c	2013-06-07 17:31:25.000000000 +0200
+--- src/regexp_nfa.c	2013-06-07 22:03:12.000000000 +0200
+***************
+*** 4332,4340 ****
+      nfa_list_T	*nextlist;
+      int		*listids = NULL;
+      nfa_state_T *add_state;
+!     int		 add_count;
+!     int		 add_off;
+      garray_T	pimlist;
+  #ifdef NFA_REGEXP_DEBUG_LOG
+      FILE	*debug = fopen(NFA_REGEXP_DEBUG_LOG, "a");
+  
+--- 4332,4341 ----
+      nfa_list_T	*nextlist;
+      int		*listids = NULL;
+      nfa_state_T *add_state;
+!     int		add_count;
+!     int		add_off;
+      garray_T	pimlist;
++     int		toplevel = start->c == NFA_MOPEN;
+  #ifdef NFA_REGEXP_DEBUG_LOG
+      FILE	*debug = fopen(NFA_REGEXP_DEBUG_LOG, "a");
+  
+***************
+*** 4378,4387 ****
+      nextlist = &list[1];
+      nextlist->n = 0;
+  #ifdef ENABLE_LOG
+!     fprintf(log_fd, "(---) STARTSTATE\n");
+  #endif
+      thislist->id = nfa_listid + 1;
+!     addstate(thislist, start, m, 0);
+  
+  #define	ADD_STATE_IF_MATCH(state)			\
+      if (result) {					\
+--- 4379,4404 ----
+      nextlist = &list[1];
+      nextlist->n = 0;
+  #ifdef ENABLE_LOG
+!     fprintf(log_fd, "(---) STARTSTATE first\n");
+  #endif
+      thislist->id = nfa_listid + 1;
+! 
+!     /* Inline optimized code for addstate(thislist, start, m, 0) if we know
+!      * it's the first MOPEN. */
+!     if (toplevel)
+!     {
+! 	if (REG_MULTI)
+! 	{
+! 	    m->norm.list.multi[0].start.lnum = reglnum;
+! 	    m->norm.list.multi[0].start.col = (colnr_T)(reginput - regline);
+! 	}
+! 	else
+! 	    m->norm.list.line[0].start = reginput;
+! 	m->norm.in_use = 1;
+! 	addstate(thislist, start->out, m, 0);
+!     }
+!     else
+! 	addstate(thislist, start, m, 0);
+  
+  #define	ADD_STATE_IF_MATCH(state)			\
+      if (result) {					\
+***************
+*** 5382,5388 ****
+  	 * Unless "nfa_endp" is not NULL, then we match the end position.
+  	 * Also don't start a match past the first line. */
+  	if (nfa_match == FALSE
+! 		&& ((start->c == NFA_MOPEN
+  			&& reglnum == 0
+  			&& clen != 0
+  			&& (ireg_maxcol == 0
+--- 5399,5405 ----
+  	 * Unless "nfa_endp" is not NULL, then we match the end position.
+  	 * Also don't start a match past the first line. */
+  	if (nfa_match == FALSE
+! 		&& ((toplevel
+  			&& reglnum == 0
+  			&& clen != 0
+  			&& (ireg_maxcol == 0
+***************
+*** 5398,5404 ****
+  #ifdef ENABLE_LOG
+  	    fprintf(log_fd, "(---) STARTSTATE\n");
+  #endif
+! 	    addstate(nextlist, start, m, clen);
+  	}
+  
+  #ifdef ENABLE_LOG
+--- 5415,5433 ----
+  #ifdef ENABLE_LOG
+  	    fprintf(log_fd, "(---) STARTSTATE\n");
+  #endif
+! 	    /* Inline optimized code for addstate() if we know the state is
+! 	     * the first MOPEN. */
+! 	    if (toplevel)
+! 	    {
+! 		if (REG_MULTI)
+! 		    m->norm.list.multi[0].start.col =
+! 					 (colnr_T)(reginput - regline) + clen;
+! 		else
+! 		    m->norm.list.line[0].start = reginput + clen;
+! 		addstate(nextlist, start->out, m, clen);
+! 	    }
+! 	    else
+! 		addstate(nextlist, start, m, clen);
+  	}
+  
+  #ifdef ENABLE_LOG
+*** ../vim-7.3.1144/src/version.c	2013-06-07 20:17:06.000000000 +0200
+--- src/version.c	2013-06-07 22:37:03.000000000 +0200
+***************
+*** 730,731 ****
+--- 730,733 ----
+  {   /* Add new patch number below this line */
++ /**/
++     1145,
+  /**/
+
+-- 
+hundred-and-one symptoms of being an internet addict:
+104. When people ask about the Presidential Election you ask "Which country?"
+
+ /// 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    ///