On man-db systems, complete with actual man sections and pages, instead
of shell commands.
I tried to come up with a portable solution for multiple man
implementations in https://github.com/vim/vim/discussions/16794 but I
think the differences between implementations were too large to do that
without overly complicated code. So instead, I implemented it for man-db
(which I think is common on Linux) and hopefully left it easier for
other people to implement it on other systems in the future if they want
to.
closes: #16843
Signed-off-by: David Mandelberg <david@mandelberg.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Without this change, pressing K while in one manpage to load another
one, then pressing CTRL-O to go back, results in going to the bottom of
the current (second) manpage. With this change, it goes back to the
previous manpage.
closes: #16791
Signed-off-by: David Mandelberg <david@mandelberg.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Give priority to (placement) command modifiers, specifically
`:vertical`, `:horizontal` and `:tab`, ahead of `g:ft_man_open_mode`,
so that if the user says e.g. `:vert Man`, Vim does the expected thing.
closes: #15117
Signed-off-by: Ivan Shapovalov <intelfx@intelfx.name>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Fix the issue introduced by #12557. `:substitute` commands in plugins
need to take into account whether `gdefault` is set or not because
that depends on the user.
closes: #13097
Signed-off-by: Christian Brabandt <cb@256bit.org>
Manual pages requested for output may undergo formatting
arranged by some roff-descendant program. Lines longer
than MANWIDTH or COLUMNS or real-estate width of a device
(with support for horizontal scrolling considered) can be
divided at either blank characters and/or at groups of word
characters (syllables) according to supported hyphenation
rules (although page authors are free to disable hyphenation
or prevent particular words from being hyphenated).
Groff‘s manual describes it as follows:
5.1.2 Hyphenation
Since the odds are not great for finding a set of words, for
every output line, which fit nicely on a line without
inserting excessive amounts of space between words, gtroff
hyphenates words so that it can justify lines without
inserting too much space between words. It uses an internal
hyphenation algorithm (a simplified version of the algorithm
used within TeX) to indicate which words can be hyphenated
and how to do so. When a word is hyphenated, the first part
of the word is added to the current filled line being output
(with an attached hyphen), and the other portion is added to
the next line to be filled.
It would be expedient for autoload/dist/man.vim (along with
syntax/man.vim‘s highlighting and ftplugin/man.vim‘s Ctrl-],
\K mappings) to allow for hyphenation of cross-references
to manual pages.
For example,
# Launch Vim [v9.0; patched: 1-1378, 1499] as follows:
MANWIDTH=80 vim --not-a-term +MANPAGER '+Man man' '+/conv(1)' '+norm B'
# Press Ctrl-] with cursor on _m_: "... use man‐
# conv(1) directly."_______________________[^]
#
# (Man v2.11.2)
# Launch Vim as follows:
MANWIDTH=80 vim --not-a-term +MANPAGER '+Man git' '+/config(1)' '+norm B'
# Press Ctrl-] with cursor on _g_: "... in git-
# config(1) for a more ..."_______________[^]
#
# (Git v2.39.2)
Co-authored-by: Aliaksei Budavei <0x000c70@gmail.com>
Functions col and cursor count each tab (0x9) as a byte, and
are complementary. On the other hand, the | command motion
takes into consideration how many screen columns a tab does
occupy and may move cursor to a column closer to the start
of line than col would report at that position.
The provided changes prefer the cursor function to the | command.
Co-authored-by: Aliaksei Budavei <0x000c70@gmail.com>
