Commit Graph

182 Commits

Author SHA1 Message Date
Přemysl Eric Janouch 39c840cd74
Mark a minor issue for later resolution 2020-10-24 19:28:11 +02:00
Přemysl Eric Janouch f231828e8d
sdn-install: bash: fix UTF-8 collisions 2020-10-24 19:27:07 +02:00
Přemysl Eric Janouch 1318c4983f
Makefile: make portable, support static linking
We can happily stick to POSIX and the usual variable names,
with the following exceptions:
 - pkg-config(1) is used to find libraries and compile flags
 - the new "static" target uses non-standard compiler
   and linker flags, though it's not the default target

sdn is predestined for wild distribution,
even the dynamically linked libc is rather suboptimal.
2020-10-23 08:22:59 +02:00
Přemysl Eric Janouch c503954f44
Cleanup
The wchar_t variant of compute_width() is no longer needed.

So all in all the better help has saved code.
2020-10-23 07:53:37 +02:00
Přemysl Eric Janouch 77973fc026
Group help message by action
Considerably more useful and concise.
2020-10-23 03:51:26 +02:00
Přemysl Eric Janouch 61be9528e4
Bind M-Up to the "parent" action
Taken from Windows Explorer, which previously used Backspace.

We might want to use h/l for parent/choose by default.
2020-10-23 03:38:47 +02:00
Přemysl Eric Janouch 2313485970
Bind C-d in the editor
We do get these as a key, after all.

Closes #4
2020-10-23 01:37:14 +02:00
Přemysl Eric Janouch 20c883fb8a
Implement C-v in the editor
Not completely happy with the explicit `halfdelay (1)`.

Updates #4
2020-10-23 01:37:07 +02:00
Přemysl Eric Janouch bbf97f6d3d
Implement C-u C-k in the editor
Updates #4
2020-10-23 01:21:25 +02:00
Přemysl Eric Janouch 706795c85c
Cleanup 2020-10-22 00:51:57 +02:00
Přemysl Eric Janouch e8eaa2366a
Implement Delete in the editor
Not caring about C-d right now, we might have to convince the tty
to send it to us--I'm not sure if it does, or returns EOF.

Updates #4
2020-10-22 00:06:41 +02:00
Přemysl Eric Janouch 12d8f6a931
Implement C-a C-e C-b C-f in the editor
Updates #4
2020-10-21 23:57:16 +02:00
Přemysl Eric Janouch 5d0c105b10
Make backspace erase combining characters
They might not be even printed correctly, though.

Updates #4
2020-10-21 23:56:51 +02:00
Přemysl Eric Janouch 33a8e26efc
Track cursor position in the editor
Updates #4
2020-10-21 23:55:01 +02:00
Přemysl Eric Janouch bbd23187bc
Minor fix-ups and adjustments 2020-10-21 08:34:32 +02:00
Přemysl Eric Janouch a0eacf4607
Add an installation script
Copying snippets from the README was uncomfortable and laborious,
and wasted a lot of space in the document, especially after
the recent additions.

Closes #3
2020-10-21 08:26:42 +02:00
Přemysl Eric Janouch 37ad5f43df
README.adoc: avoid unnecessary quotes for bash
Word expansion is not performed there.
2020-10-20 03:58:11 +02:00
Přemysl Eric Janouch a95fa2f96d
README.adoc: fish after bash
Bash is a bad citizen but this order makes more sense.
2020-10-20 03:47:12 +02:00
Přemysl Eric Janouch 6f40b8db3a
Fix ext-helpers with older bash versions
See Midnight Commander commit 436296f, blindly trusting it.

wc(1) could be used unconditionally but let's make it clear.
2020-10-20 03:44:15 +02:00
Přemysl Eric Janouch 63e7895905
Let the caller decide how to launch helpers
In the end, we don't need to impose any policy on it,
and it removes a level of quoting, as well as an `eval`.
2020-10-08 19:50:04 +02:00
Přemysl Eric Janouch 6aa4bd2ff5
When resuming a child, resume the whole group
SIGTSTP is sent to the entire foreground process group,
so do the some with our SIGCONT.

Debian's default sh (dash) doesn't replace itself with
the command, even if it's the last one in the -c option.

Of course, we do not need to use /bin/sh for the helpers
at all, though it doesn't cost us much.  We could also
issue an explicit `exec`.
2020-10-08 19:49:07 +02:00
Přemysl Eric Janouch 000315165d
Fix the help in absence of a bindings file 2020-10-08 14:28:49 +02:00
Přemysl Eric Janouch d2e4b91262
Fix showing DEL in the help
And in general fix all CTRL processing to handle the DEL character.
2020-10-08 14:28:24 +02:00
Přemysl Eric Janouch c18630295c
README.adoc: add configuration for elvish
And remove it from the "similar software" section.

Our relationship has progressed.

Other unusual shells I've checked before I gave up:
 - nushell lacks the ability to bind keys to user functions
 - yash can but is otherwise way too basic
2020-10-07 20:57:37 +02:00
Přemysl Eric Janouch b53a3a0981
Revisit zsh integration
zsh's antisocial behaviour was fairly promptly fixed (thanks to
Stephane Chazelas and his patience).

zle-line-init and zle-line-reset seem to be user-defined widgets
and the order inverted.  Put zle-line-init before reset-prompt
because some people do weird things in there.
2020-10-04 14:27:51 +02:00
Přemysl Eric Janouch cf80a15501
Survive a removed CWD, as well as an empty root
All the omitted error checking sometimes sucks a lot,
and I need to include it later anyway.
2020-10-02 16:35:12 +02:00
Přemysl Eric Janouch 2d6d0582a1
README.adoc: fix zsh integration snippet 2020-10-02 15:36:51 +02:00
Přemysl Eric Janouch 5451eba2a3
Make the outer prompt look more normal
There's a slight issue with the inverted cell representing
the cursor standing out a bit too much amongst the rest of
the characters.

The resulting experience is a lot more consistent, though.
2020-10-01 13:40:52 +02:00
Přemysl Eric Janouch b8c767354e
Show external command line if appropriate
Since I'm already dealing with the fish shell.

All of our supported shells seem to handle cursor position
in Unicode (wide character) codepoints.

It was easiest and most straight-forward to pass the data
through yet-unused program arguments.

The cursor position is marked by a Unicode glyph equivalent
to ACS_DIAMOND, although ncurses doesn't get a chance
to make any ACS translation.
2020-10-01 11:58:32 +02:00
Přemysl Eric Janouch c07f557c16
README.adoc: clarify bash problems
I've also tried tcsh but while it /can/ be used for directory
navigation, it has several issues that are much more serious.
2020-10-01 08:41:58 +02:00
Přemysl Eric Janouch 5fff336e77
README.adoc: fix up hswg compatibility 2020-10-01 04:20:10 +02:00
Přemysl Eric Janouch 6e8d816ada
README.adoc: split into subsections 2020-10-01 04:07:56 +02:00
Přemysl Eric Janouch 063938ff60
README.adoc: add configuration for fish 2020-10-01 04:04:19 +02:00
Přemysl Eric Janouch 93172797e1
Set cursor to child when going to parent dir
That is, if it's missing from our history.

This makes for a more consistent experience when traversing
the filesystem.  Arguably, it's only good for when 'h' is
bound to the 'parent' action.

Also make sure that the offset and cursor are reset when
the path is changed.
2020-09-29 03:39:13 +02:00
Přemysl Eric Janouch 1507f2dff9
Cleanup 2020-09-29 02:31:49 +02:00
Přemysl Eric Janouch 9a12fd8021
Add ability to run helpers externally
So far experimental and essentially undocumented.
2020-09-29 01:33:19 +02:00
Přemysl Eric Janouch f596bb8f5e
reload() doesn't really need to know the old path
Just whether it's safe for it to keep an anchor on the current item.

I've left in the safety check for an empty entries array,
for the theoretical case of an empty or entirely filtered-out root
directory.  It will likely crash in that case, anyway,
the cursor may be either -1 or 0.
2020-09-28 22:52:33 +02:00
Přemysl Eric Janouch 67da8d965b
Make anchor processing a bit more obvious 2020-09-28 22:18:17 +02:00
Přemysl Eric Janouch e60ffeeb20
Improve PAGER defaults
We basically need less(1), nothing else will work correctly.

I'm not sure where I took pager(1) from, might be a Debian thing.
2020-09-28 21:34:09 +02:00
Přemysl Eric Janouch 9a2f6ab5cf
README.adoc: talk about view and edit helpers 2020-09-28 21:26:33 +02:00
Přemysl Eric Janouch 0a66ae4d26
Expand a comment about overstriked underlining 2020-09-28 20:11:38 +02:00
Přemysl Eric Janouch 121d7850fe
Show error output from failed helpers
Usually, when the pager or the editor fail and return a non-zero
exit status, they display a message on the standard error output.

We might also try to redirect this output to show_mesage() but
it might not fit as a whole, so, given the relative rareness
of this situation, this slight inconsistency shouldn't be much
of an issue.

It'd also be possible to redirect the output to run_pager() but
in doing so, we might make the problem recursive.
2020-09-28 20:05:29 +02:00
Přemysl Eric Janouch 98c8dc5b7d
Fix tilde expansion algorithm
In principle correct, in practice completely broken.

I wrongly assumed basic_string::find() would behave like strcspn(),
and also used a nonsensical string index to check for the tilde.
2020-09-28 02:00:29 +02:00
Přemysl Eric Janouch b99f96cf6a
Fix comment: the word "no-op" needs to be split 2020-09-28 01:46:38 +02:00
Přemysl Eric Janouch 5759df156b
Support tilde expansion in the "chdir" action
The tilde may be escaped, and this first escape may be escaped
as well, so all paths should be expressable.

All will just work(TM) for those who need it, and those who start
filenames with backslashes are begging to have their foot shot.

It appears that even Shift JIS, Big5, GB 18030, and GBK are
compatible with Unix paths, meaning they don't redefine the slash
(0x2F), so I'm okay with my direct multibyte string handling in
unknown locales.

Legacy stuff smells.
2020-09-28 01:45:56 +02:00
Přemysl Eric Janouch 91df92f49a
Make F3 change directories
Best complemented with a less(1) configuration that also quits on F3,
just like mcview.  Or invoke sdn with PAGER=mcview, even though you
lose the ability to view the help that way (but gain filters).
2020-09-27 23:33:10 +02:00
Přemysl Eric Janouch bff886841b
Always accept ^? as well as ^H as backspace 2020-09-21 21:15:15 +02:00
Přemysl Eric Janouch ebb444dda1
README: add an example of configuring bindings 2020-09-15 19:36:19 +02:00
Přemysl Eric Janouch da0252ff98
README: make it also work with asciidoctor 2020-09-15 19:31:54 +02:00
Přemysl Eric Janouch 98da5f6d35
Add an action to go to the parent directory 2020-09-15 19:15:30 +02:00