To: vim_dev@googlegroups.com
Subject: Patch 7.3.610
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.3.610
Problem:    Cannot operate on the text that a search pattern matches.
Solution:   Add the "gn" and "gN" commands. (Christian Brabandt)
Files:	    runtime/doc/index.txt, runtime/doc/visual.txt, src/normal.c,
	    src/proto/search.pro, src/search.c, src/testdir/test53.in,
	    src/testdir/test53.ok


*** ../vim-7.3.609/runtime/doc/index.txt	2010-08-15 21:57:18.000000000 +0200
--- runtime/doc/index.txt	2012-07-25 14:27:20.000000000 +0200
***************
*** 719,726 ****
--- 719,729 ----
  |gH|		gH		   start Select line mode
  |gI|		gI		2  like "I", but always start in column 1
  |gJ|		gJ		2  join lines without inserting space
+ |gN|		gN	      1,2  find the previous match with the last used
+ 				   search pattern and Visually select it
  |gP|		["x]gP		2  put the text [from register x] before the
  				   cursor N times, leave the cursor after it
+ |gQ|		gQ		    switch to "Ex" mode with Vim editing
  |gR|		gR		2  enter Virtual Replace mode
  |gU|		gU{motion}	2  make Nmove text uppercase
  |gV|		gV		   don't reselect the previous Visual area
***************
*** 750,755 ****
--- 753,760 ----
  				   lines down
  |gk|		gk		1  like "k", but when 'wrap' on go N screen
  				   lines up
+ |gn|		gn	      1,2  find the next match with the last used
+ 				   search pattern and Visually select it
  |gm|		gm		1  go to character at middle of the screenline
  |go|		go		1  cursor to byte N in the buffer
  |gp|		["x]gp		2  put the text [from register x] after the
*** ../vim-7.3.609/runtime/doc/visual.txt	2010-08-15 21:57:16.000000000 +0200
--- runtime/doc/visual.txt	2012-07-25 14:42:22.000000000 +0200
***************
*** 94,99 ****
--- 99,116 ----
  			After using "p" or "P" in Visual mode the text that
  			was put will be selected.
  
+ 								*gn* *v_gn*
+ gn			Search forward for the last used search pattern, like
+ 			with `n`, and start Visual mode to select the match.
+ 			If the cursor is on the match, visually selects it.
+ 			If an operator is pending, operates on the match.
+ 			E.g., "dgn" deletes the text of the next match.
+ 			If Visual mode is active, extends the selection
+ 			until the end of the next match.
+ 
+ 								*gN* *v_gN*
+ gN			Like |gn| but searches backward, like with `N`.
+ 
  							*<LeftMouse>*
  <LeftMouse>		Set the current cursor position.  If Visual mode is
  			active it is stopped.  Only when 'mouse' option is
*** ../vim-7.3.609/src/normal.c	2012-07-10 16:49:08.000000000 +0200
--- src/normal.c	2012-07-25 14:31:40.000000000 +0200
***************
*** 1780,1789 ****
  	    {
  		/* Prepare for redoing.  Only use the nchar field for "r",
  		 * otherwise it might be the second char of the operator. */
! 		prep_redo(oap->regname, 0L, NUL, 'v',
! 				get_op_char(oap->op_type),
! 				get_extra_op_char(oap->op_type),
! 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
  		if (!redo_VIsual_busy)
  		{
  		    redo_VIsual_mode = resel_VIsual_mode;
--- 1780,1797 ----
  	    {
  		/* Prepare for redoing.  Only use the nchar field for "r",
  		 * otherwise it might be the second char of the operator. */
! 		if (cap->cmdchar == 'g' && (cap->nchar == 'n'
! 							|| cap->nchar == 'N'))
! 		    /* "gn" and "gN" are a bit different */
! 		    prep_redo(oap->regname, 0L, NUL, cap->cmdchar, cap->nchar,
! 					get_op_char(oap->op_type),
! 					get_extra_op_char(oap->op_type));
! 		else
! 		    prep_redo(oap->regname, 0L, NUL, 'v',
! 					get_op_char(oap->op_type),
! 					get_extra_op_char(oap->op_type),
! 					oap->op_type == OP_REPLACE
! 							  ? cap->nchar : NUL);
  		if (!redo_VIsual_busy)
  		{
  		    redo_VIsual_mode = resel_VIsual_mode;
***************
*** 7987,7992 ****
--- 7995,8011 ----
  	cap->arg = TRUE;
  	nv_visual(cap);
  	break;
+ 
+     /* "gn", "gN" visually select next/previous search match
+      * "gn" selects next match
+      * "gN" selects previous match
+      */
+     case 'N':
+     case 'n':
+ 	if (!current_search(cap->count1, cap->nchar == 'n'))
+ 	    beep_flush();
+ 
+ 	break;
  #endif /* FEAT_VISUAL */
  
      /*
*** ../vim-7.3.609/src/proto/search.pro	2010-08-15 21:57:28.000000000 +0200
--- src/proto/search.pro	2012-07-25 14:24:01.000000000 +0200
***************
*** 27,32 ****
--- 27,33 ----
  int end_word __ARGS((long count, int bigword, int stop, int empty));
  int bckend_word __ARGS((long count, int bigword, int eol));
  int current_word __ARGS((oparg_T *oap, long count, int include, int bigword));
+ int current_search __ARGS((long count, int forward));
  int current_sent __ARGS((oparg_T *oap, long count, int include));
  int current_block __ARGS((oparg_T *oap, long count, int include, int what, int other));
  int current_tagblock __ARGS((oparg_T *oap, long count_arg, int include));
*** ../vim-7.3.609/src/search.c	2012-07-25 13:46:25.000000000 +0200
--- src/search.c	2012-07-25 14:54:28.000000000 +0200
***************
*** 3397,3402 ****
--- 3397,3547 ----
      return OK;
  }
  
+ #if defined(FEAT_VISUAL) || defined(PROTO)
+ /*
+  * Find next search match under cursor, cursor at end.
+  * Used while an operator is pending, and in Visual mode.
+  * TODO: redo only works when used in operator pending mode
+  */
+     int
+ current_search(count, forward)
+     long	count;
+     int		forward;	/* move forward or backwards */
+ {
+     pos_T	start_pos;	/* position before the pattern */
+     pos_T	orig_pos;	/* position of the cursor at beginning */
+     pos_T	pos;		/* position after the pattern */
+     int		i;
+     int		dir;
+     int		result;		/* result of various function calls */
+     char_u	old_p_ws = p_ws;
+     int		visual_active = FALSE;
+     int		flags = 0;
+     pos_T	save_VIsual;
+ 
+ 
+     /* wrapping should not occur */
+     p_ws = FALSE;
+ 
+     /* Correct cursor when 'selection' is exclusive */
+     if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor))
+ 	dec_cursor();
+ 
+     if (VIsual_active)
+     {
+ 	orig_pos = curwin->w_cursor;
+ 	save_VIsual = VIsual;
+ 	visual_active = TRUE;
+ 
+ 	/* just started visual selection, only one character */
+ 	if (equalpos(VIsual, curwin->w_cursor))
+ 	    visual_active = FALSE;
+ 
+ 	pos = curwin->w_cursor;
+ 	start_pos = VIsual;
+ 
+ 	/* make sure, searching further will extend the match */
+ 	if (VIsual_active)
+ 	{
+ 	    if (forward)
+ 		incl(&pos);
+ 	    else
+ 		decl(&pos);
+ 	}
+     }
+     else
+ 	orig_pos = pos = start_pos = curwin->w_cursor;
+ 
+     /*
+      * The trick is to first search backwards and then search forward again,
+      * so that a match at the current cursor position will be correctly
+      * captured.
+      */
+     for (i = 0; i < 2; i++)
+     {
+ 	if (i && count == 1)
+ 	    flags = SEARCH_START;
+ 
+ 	if (forward)
+ 	    dir = i;
+ 	else
+ 	    dir = !i;
+ 	result = searchit(curwin, curbuf, &pos, (dir ? FORWARD : BACKWARD),
+ 		spats[last_idx].pat, (long) (i ? count : 1),
+ 		SEARCH_KEEP | flags | (dir ? 0 : SEARCH_END),
+ 		RE_SEARCH, 0, NULL);
+ 
+ 	/* First search may fail, but then start searching from the
+ 	 * beginning of the file (cursor might be on the search match)
+ 	 * except when Visual mode is active, so that extending the visual
+ 	 * selection works. */
+ 	if (!result && i) /* not found, abort */
+ 	{
+ 	    curwin->w_cursor = orig_pos;
+ 	    if (VIsual_active)
+ 		VIsual = save_VIsual;
+ 	    p_ws = old_p_ws;
+ 	    return FAIL;
+ 	}
+ 	else if (!i && !result && !visual_active)
+ 	{
+ 	    if (forward) /* try again from start of buffer */
+ 	    {
+ 		clearpos(&pos);
+ 	    }
+ 	    else /* try again from end of buffer */
+ 	    {
+ 		/* searching backwards, so set pos to last line and col */
+ 		pos.lnum = curwin->w_buffer->b_ml.ml_line_count;
+ 		pos.col  = STRLEN(ml_get(curwin->w_buffer->b_ml.ml_line_count));
+ 	    }
+ 	}
+ 
+     }
+ 
+     start_pos = pos;
+     flags = (forward ? SEARCH_END : 0);
+ 
+     /* move to match */
+     result = searchit(curwin, curbuf, &pos, (forward ? FORWARD : BACKWARD),
+ 	    spats[last_idx].pat, 0L, flags | SEARCH_KEEP, RE_SEARCH, 0, NULL);
+ 
+     if (!VIsual_active)
+ 	VIsual = start_pos;
+ 
+     p_ws = old_p_ws;
+     curwin->w_cursor = pos;
+     VIsual_active = TRUE;
+     VIsual_mode = 'v';
+ 
+     if (VIsual_active)
+     {
+ 	redraw_curbuf_later(INVERTED);	/* update the inversion */
+ 	if (*p_sel == 'e' && ltoreq(VIsual, curwin->w_cursor))
+ 	    inc_cursor();
+     }
+ 
+ #ifdef FEAT_FOLDING
+     if (fdo_flags & FDO_SEARCH && KeyTyped)
+ 	foldOpenCursor();
+ #endif
+ 
+     may_start_select('c');
+ #ifdef FEAT_MOUSE
+     setmouse();
+ #endif
+ #ifdef FEAT_CLIPBOARD
+     /* Make sure the clipboard gets updated.  Needed because start and
+      * end are still the same, and the selection needs to be owned */
+     clip_star.vmode = NUL;
+ #endif
+     redraw_curbuf_later(INVERTED);
+     showmode();
+ 
+     return OK;
+ }
+ #endif /* FEAT_VISUAL */
+ 
  /*
   * Find sentence(s) under the cursor, cursor at end.
   * When Visual active, extend it by one or more sentences.
***************
*** 3420,3426 ****
  
  #ifdef FEAT_VISUAL
      /*
!      * When visual area is bigger than one character: Extend it.
       */
      if (VIsual_active && !equalpos(start_pos, VIsual))
      {
--- 3565,3571 ----
  
  #ifdef FEAT_VISUAL
      /*
!      * When the Visual area is bigger than one character: Extend it.
       */
      if (VIsual_active && !equalpos(start_pos, VIsual))
      {
***************
*** 3508,3515 ****
  #endif
  
      /*
!      * If cursor started on blank, check if it is just before the start of the
!      * next sentence.
       */
      while (c = gchar_pos(&pos), vim_iswhite(c))	/* vim_iswhite() is a macro */
  	incl(&pos);
--- 3653,3660 ----
  #endif
  
      /*
!      * If the cursor started on a blank, check if it is just before the start
!      * of the next sentence.
       */
      while (c = gchar_pos(&pos), vim_iswhite(c))	/* vim_iswhite() is a macro */
  	incl(&pos);
***************
*** 3558,3564 ****
  #ifdef FEAT_VISUAL
      if (VIsual_active)
      {
! 	/* avoid getting stuck with "is" on a single space before a sent. */
  	if (equalpos(start_pos, curwin->w_cursor))
  	    goto extend;
  	if (*p_sel == 'e')
--- 3703,3709 ----
  #ifdef FEAT_VISUAL
      if (VIsual_active)
      {
! 	/* Avoid getting stuck with "is" on a single space before a sentence. */
  	if (equalpos(start_pos, curwin->w_cursor))
  	    goto extend;
  	if (*p_sel == 'e')
*** ../vim-7.3.609/src/testdir/test53.in	2010-08-15 21:57:29.000000000 +0200
--- src/testdir/test53.in	2012-07-25 15:01:34.000000000 +0200
***************
*** 28,33 ****
--- 28,40 ----
  :put =matchstr(\"abcd\", \".\", 0, -1) " a
  :put =match(\"abcd\", \".\", 0, 5) " -1
  :put =match(\"abcd\", \".\", 0, -1) " 0
+ /^foobar
+ gncsearchmatch/one\_s*two\_s
+ :1
+ gnd
+ /[a]bcdx
+ :1
+ 2gnd
  :/^start:/,/^end:/wq! test.out
  ENDTEST
  
***************
*** 45,48 ****
--- 52,60 ----
  -<b>asdf<i>Xasdf</i>asdf</b>-
  -<b>asdX<i>as<b />df</i>asdf</b>-
  </begin>
+ SEARCH:
+ foobar
+ one
+ two
+ abcdx | abcdx | abcdx
  end:
*** ../vim-7.3.609/src/testdir/test53.ok	2010-08-15 21:57:29.000000000 +0200
--- src/testdir/test53.ok	2012-07-25 14:24:01.000000000 +0200
***************
*** 18,21 ****
--- 18,24 ----
  a
  -1
  0
+ SEARCH:
+ searchmatch
+ abcdx |  | abcdx
  end:
*** ../vim-7.3.609/src/version.c	2012-07-25 13:46:25.000000000 +0200
--- src/version.c	2012-07-25 15:03:43.000000000 +0200
***************
*** 716,717 ****
--- 716,719 ----
  {   /* Add new patch number below this line */
+ /**/
+     610,
  /**/

-- 
Did you ever see a "Hit any key to continue" message in a music piece?

 /// 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    ///
