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vim-patch:9.1.1599: :bnext doesn't go to unlisted help buffers (#35216)

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Problem:  :bnext doesn't go to unlisted help buffers when cycling
          through help buffers (after 9.1.0557).
Solution: Don't check if a help buffer is listed (zeertzjq).

From <https://github.com/vim/vim/issues/4478#issuecomment-498831057>:

> I think we should fix that, since once you get to a non-help buffer
> all unlisted buffers are skipped, thus you won't encounter another
> help buffer.

This implies that cycling through help buffers should work even if help
buffers are unlisted. Otherwise this part of :bnext isn't really useful,
as :h makes help buffers unlisted by default.

related: vim/vim#4478
related: vim/vim#15198
closes: vim/vim#17913

9662f33480
(cherry picked from commit 53ac2ad20a)
This commit is contained in:
zeertzjq
2025-08-07 23:57:55 +08:00
committed by github-actions[bot]
parent f4b4c27a35
commit 54c2ea142a
2 changed files with 20 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/nvim/buffer.c
View File

@@ -1255,8 +1255,11 @@ static int do_buffer_ext(int action, int start, int dir, int count, int flags)
buf = buf->b_next; buf = buf->b_next;
} }
} else { } else {
const bool help_only = (flags & DOBUF_SKIPHELP) != 0 && buf->b_help;
bp = NULL; bp = NULL;
while (count > 0 || (!unload && !buf->b_p_bl && bp != buf)) { while (count > 0 || (bp != buf && !unload
&& !(help_only ? buf->b_help : buf->b_p_bl))) {
// remember the buffer where we start, we come back there when all // remember the buffer where we start, we come back there when all
// buffers are unlisted. // buffers are unlisted.
if (bp == NULL) { if (bp == NULL) {
@@ -1264,12 +1267,13 @@ static int do_buffer_ext(int action, int start, int dir, int count, int flags)
} }
buf = dir == FORWARD ? (buf->b_next != NULL ? buf->b_next : firstbuf) buf = dir == FORWARD ? (buf->b_next != NULL ? buf->b_next : firstbuf)
: (buf->b_prev != NULL ? buf->b_prev : lastbuf); : (buf->b_prev != NULL ? buf->b_prev : lastbuf);
// Avoid non-help buffers if the starting point was a help buffer
// and vice-versa.
// Don't count unlisted buffers. // Don't count unlisted buffers.
// Avoid non-help buffers if the starting point was a non-help buffer and
// vice-versa.
if (unload if (unload
|| (buf->b_p_bl || (help_only
&& ((flags & DOBUF_SKIPHELP) == 0 || buf->b_help == bp->b_help))) { ? buf->b_help
: (buf->b_p_bl && ((flags & DOBUF_SKIPHELP) == 0 || !buf->b_help)))) {
count--; count--;
bp = NULL; // use this buffer as new starting point bp = NULL; // use this buffer as new starting point
} }

11
test/old/testdir/test_buffer.vim
View File

@@ -169,6 +169,17 @@ func Test_bnext_bprev_help()
b XHelp1 b XHelp1
blast | call assert_equal(b4, bufnr()) blast | call assert_equal(b4, bufnr())
" Cycling through help buffers works even if they aren't listed.
b XHelp1
setlocal nobuflisted
bnext | call assert_equal(b3, bufnr())
bnext | call assert_equal(b1, bufnr())
bprev | call assert_equal(b3, bufnr())
setlocal nobuflisted
bprev | call assert_equal(b1, bufnr())
bprev | call assert_equal(b3, bufnr())
bnext | call assert_equal(b1, bufnr())
%bwipe! %bwipe!
endfunc endfunc