Hi Yegappan!
On Do, 14 Jul 2016, Yegappan Lakshmanan wrote:
> Hi all,
>
> My wish list for extending the Vim search feature:
>
> 1. When searching for a pattern, pressing a key at the search prompt
> should jump to the next or previous match.
> 2. After jumping multiple times from the search prompt, pressing the
> escape key should restore the cursor to the original cursor position
> before the search.
> 3. Pressing backspace at the search prompt to erase a few characters and
> then typing additional characters should start the search from the
> previously matched position and not from the original position.
> 4. As characters are typed at the search prompt, all the matching text
> should be highlighted (multiple matches). This can be turned on/off by
> an option.
>
> I know there are some Vim plugins that support some of these features.
> But it will be useful to extend the built-in Vim feature to support these
> features.
Here is an experimental patch, that does this using Ctrl-N Ctrl-P in
search mode, when 'incsearch' is set. I am not super happy, about
depending on 'incsearch', but on the other hand, Ctrl-L already only
works when 'incsearch' is set. Also I am open to suggestions for
alternative keys, although I must admit, Ctrl-N/Ctrl-P seem like logical
choices.
It doesn't do everything you want, but it seems to work well for me. I
made it so, that pressing enter will remain at the current selected
match, which seems obvious and so I did not need to introduce a new key
function. Pressing ESC however will return the cursor to the position
where you started with the search.
This was just written very fast, I am pretty sure, there are some bugs
lying around and also tests are missing. But if this turns out to be
useful, I'll work more on it (and add a test of course).
Comments welcome,
Best,
Christian
--
Ja, mach nur einen Plan, sei nur ein großes Licht, und mach noch einen
zweiten Plan, gehn tun sie beide nicht.
-- Berthold Brecht (Dreigroschenoper)
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From ae49fd135effecee212640a5b1e71c56834d49d5 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <c...@256bit.org>
Date: Tue, 26 Jul 2016 11:18:51 +0200
Subject: [PATCH] Make Ctrl-N/P jump to next/previous search match
Currently, you cannot move from one match to the next match
when doing a search '/' or '?'.
This patch adds the functionality to use 'Ctrl-N' to move the
cursor to the next match, if 'insearch' is set. Similarily 'Ctrl-P' will
move to the previous match.
Also c_CTRL-N and c_CTRL-P are already used to move within in history of
search patterns, I have for now made them something different in search
mode, when incsearch is set. This is because c_CTRL-L already does
something useful in search mode and second, because Ctrl-N and
Ctrl-P are already used to select next/previous match in completion mode
so it seems logically to also extend their use in search mode.
---
runtime/doc/cmdline.txt | 8 +++++
src/ex_getln.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 83 insertions(+), 2 deletions(-)
diff --git a/runtime/doc/cmdline.txt b/runtime/doc/cmdline.txt
index 8186678..9fbdbd0 100644
--- a/runtime/doc/cmdline.txt
+++ b/runtime/doc/cmdline.txt
@@ -409,11 +409,19 @@ CTRL-D List names that match the pattern in front of the cursor.
*c_CTRL-N*
CTRL-N After using 'wildchar' which got multiple matches, go to next
match. Otherwise recall more recent command-line from history.
+ */_CTRL-N*
+ When 'incsearch' is set, entering a search pattern for "/" or
+ "?" and the current match is displayed then CTRL-N will move
+ to the next match.
<S-Tab> *c_CTRL-P* *c_<S-Tab>*
CTRL-P After using 'wildchar' which got multiple matches, go to
previous match. Otherwise recall older command-line from
history. <S-Tab> only works with the GUI, on the Amiga and
with MS-DOS.
+ */_CTRL-P*
+ When 'incsearch' is set, entering a search pattern for "/" or
+ "?" and the current match is displayed then CTRL-N will move
+ to the previous match.
*c_CTRL-A*
CTRL-A All names that match the pattern in front of the cursor are
inserted.
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 642e090..66fd313 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -178,6 +178,8 @@ getcmdline(
colnr_T old_curswant;
colnr_T old_leftcol;
linenr_T old_topline;
+ int did_incs_move = FALSE;
+ pos_T cursor_start;
# ifdef FEAT_DIFF
int old_topfill;
# endif
@@ -224,6 +226,7 @@ getcmdline(
ccline.overstrike = FALSE; /* always start in insert mode */
#ifdef FEAT_SEARCH_EXTRA
old_cursor = curwin->w_cursor; /* needs to be restored later */
+ cursor_start = old_cursor;
old_curswant = curwin->w_curswant;
old_leftcol = curwin->w_leftcol;
old_topline = curwin->w_topline;
@@ -1441,8 +1444,23 @@ getcmdline(
{
/* Add a character from under the cursor for 'incsearch' */
if (did_incsearch
- && !equalpos(curwin->w_cursor, old_cursor))
+ && (!equalpos(curwin->w_cursor, old_cursor) || did_incs_move))
{
+ if (did_incs_move)
+ {
+ /* First move cursor to end of match, then to the start. This
+ * moves the whole match onto the screen when 'nowrap' is set.
+ */
+ curwin->w_cursor.lnum += search_match_lines;
+ curwin->w_cursor.col = search_match_endcol;
+ if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
+ {
+ curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
+ coladvance((colnr_T)MAXCOL);
+ }
+ did_incs_move = FALSE;
+ }
+
c = gchar_cursor();
/* If 'ignorecase' and 'smartcase' are set and the
* command line has no uppercase characters, convert
@@ -1473,7 +1491,60 @@ getcmdline(
case Ctrl_N: /* next match */
case Ctrl_P: /* previous match */
- if (xpc.xp_numfiles > 0)
+#ifdef FEAT_SEARCH_EXTRA
+ if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
+ {
+ int old_ws = p_ws;
+ pos_T t;
+
+ if (char_avail())
+ continue;
+ cursor_off();
+ out_flush();
+ ++emsg_off;
+ p_ws = TRUE;
+ t = curwin->w_cursor;
+ if (!did_incs_move && c == Ctrl_P)
+ curwin->w_cursor = old_cursor;
+
+ i = do_search(NULL, c == Ctrl_N ? '/' : '?', ccline.cmdbuff, count,
+ SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK, NULL
+ );
+ p_ws = old_ws;
+ --emsg_off;
+ if (i)
+ {
+ did_incs_move = TRUE;
+ if (c == Ctrl_P)
+ {
+ /* move just before the previous match, so that when nv_search finishes
+ * the cursor will be put back on the match */
+ (void)searchit(curwin, curbuf, &t, BACKWARD, ccline.cmdbuff, count,
+ SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK + SEARCH_COL,
+ RE_SEARCH, 0, NULL);
+ (void)decl(&t);
+ }
+ old_cursor = t;
+ changed_cline_bef_curs();
+ update_topline();
+ validate_cursor();
+ highlight_match = TRUE;
+ old_curswant = curwin->w_curswant;
+ old_leftcol = curwin->w_leftcol;
+ old_topline = curwin->w_topline;
+# ifdef FEAT_DIFF
+ old_topfill = curwin->w_topfill;
+# endif
+ old_botline = curwin->w_botline;
+ update_screen(NOT_VALID);
+ redrawcmdline();
+ }
+ goto cmdline_not_changed;
+
+
+ }
+#endif
+ else if (xpc.xp_numfiles > 0)
{
if (nextwild(&xpc, (c == Ctrl_P) ? WILD_PREV : WILD_NEXT,
0, firstc != '@') == FAIL)
@@ -1894,6 +1965,8 @@ returncmd:
if (did_incsearch)
{
curwin->w_cursor = old_cursor;
+ if (gotesc)
+ curwin->w_cursor = cursor_start;
curwin->w_curswant = old_curswant;
curwin->w_leftcol = old_leftcol;
curwin->w_topline = old_topline;
--
2.1.4
