From d51cb706a4e3ae99555bc214a64c83603c701139 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Tue, 21 Jul 2015 15:03:06 +0200
Subject: patch 7.4.791 Problem:    The buffer list can be very long. Solution:
   Add an argument to ":ls" to specify the type of buffer to list.            
 (Marcin Szamotulski)

---
 src/buffer.c  | 15 ++++++++++++++-
 src/ex_cmds.h |  6 +++---
 src/version.c |  2 ++
 3 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/buffer.c b/src/buffer.c
index c4d5e340b..19df710e8 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2761,7 +2761,20 @@ buflist_list(eap)
     for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next)
     {
 	/* skip unlisted buffers, unless ! was used */
-	if (!buf->b_p_bl && !eap->forceit)
+	if ((!buf->b_p_bl && !eap->forceit && !vim_strchr(eap->arg, 'u'))
+		|| (vim_strchr(eap->arg, 'u') && buf->b_p_bl)
+		|| (vim_strchr(eap->arg, '+')
+			&& ((buf->b_flags & BF_READERR) || !bufIsChanged(buf)))
+		|| (vim_strchr(eap->arg, 'a')
+			 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows == 0))
+		|| (vim_strchr(eap->arg, 'h')
+			 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows != 0))
+		|| (vim_strchr(eap->arg, '-') && buf->b_p_ma)
+		|| (vim_strchr(eap->arg, '=') && !buf->b_p_ro)
+		|| (vim_strchr(eap->arg, 'x') && !(buf->b_flags & BF_READERR))
+		|| (vim_strchr(eap->arg, '%') && buf != curbuf)
+		|| (vim_strchr(eap->arg, '#')
+		      && (buf == curbuf || curwin->w_alt_fnum != buf->b_fnum)))
 	    continue;
 	msg_putchar('\n');
 	if (buf_spname(buf) != NULL)
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 21d42d55d..794595697 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -217,7 +217,7 @@ EX(CMD_browse,		"browse",	ex_wrongmodifier,
 			NEEDARG|EXTRA|NOTRLCOM|CMDWIN,
 			ADDR_LINES),
 EX(CMD_buffers,		"buffers",	buflist_list,
-			BANG|TRLBAR|CMDWIN,
+			BANG|EXTRA|TRLBAR|CMDWIN,
 			ADDR_LINES),
 EX(CMD_bufdo,		"bufdo",	ex_listdo,
 			BANG|NEEDARG|EXTRA|NOTRLCOM|RANGE|NOTADR|DFLALL,
@@ -526,7 +526,7 @@ EX(CMD_file,		"file",		ex_file,
 			RANGE|NOTADR|ZEROR|BANG|FILE1|TRLBAR,
 			ADDR_LINES),
 EX(CMD_files,		"files",	buflist_list,
-			BANG|TRLBAR|CMDWIN,
+			BANG|EXTRA|TRLBAR|CMDWIN,
 			ADDR_LINES),
 EX(CMD_filetype,	"filetype",	ex_filetype,
 			EXTRA|TRLBAR|CMDWIN,
@@ -847,7 +847,7 @@ EX(CMD_lwindow,		"lwindow",	ex_cwindow,
 			RANGE|NOTADR|COUNT|TRLBAR,
 			ADDR_LINES),
 EX(CMD_ls,		"ls",		buflist_list,
-			BANG|TRLBAR|CMDWIN,
+			BANG|EXTRA|TRLBAR|CMDWIN,
 			ADDR_LINES),
 EX(CMD_move,		"move",		ex_copymove,
 			RANGE|WHOLEFOLD|EXTRA|TRLBAR|CMDWIN|MODIFY,
diff --git a/src/version.c b/src/version.c
index 18ba7d0ff..2b288722f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    791,
 /**/
     790,
 /**/
-- 
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