Commit Graph

3826 Commits

Author SHA1 Message Date
Maxime Coste
3612eb50e5 Fix bug in word completer
A bug could be triggered in the word completer when a multiselection
would trigger word completion with one selection being at buffer first
character.
2017-06-09 14:21:18 +01:00
Maxime Coste
64aa6f3fb4 Proper linear time insert completion insertion
The previous solution, ad9b090ddf, was
failing when completion was not replacing any text, as going through
SelectionList was not permitting to replace empty ranges.

Handle replacement as first a deletion then an insert to get fast
update, as having a list of forward deletions and then a list
for forwad insertion is much faster to update than a list of
interleaved delete/insert.
2017-06-09 14:13:43 +01:00
Maxime Coste
f310db639c Rework partial line display logic
Instead of highlighting full lines and then trim them to make them
fit in the window, highlight only the visible portion, and rely on
the compute_display_setup system introduced for wrapping to setup
our buffer range correctly
2017-06-09 13:22:32 +01:00
Maxime Coste
242f951c84 More explicit and simpler code 2017-06-09 09:54:18 +01:00
Maxime Coste
fe46c05685 Remove spurious double underscore 2017-06-08 10:37:48 +01:00
Maxime Coste
2b5fafa909 Do not show startup info when piping into kak
Fixes #1340
2017-06-08 10:03:07 +01:00
Maxime Coste
ad9b090ddf Fix quadratic behaviour in when selecting an insert completion
Use the fast, linear time SelectionList::insert algorithm instead of
an ad-hoc one that needs to call SelectionList::update after each
modification of the buffer.

Fixes #1417
2017-06-08 09:55:34 +01:00
Maxime Coste
4ab40af3a9 Disable idle timers on all transient contexts 2017-06-08 09:53:23 +01:00
Maxime Coste
609b0bbbac Merge remote-tracking branch 'Delapouite/rotate-forward' 2017-06-08 07:14:20 +01:00
Maxime Coste
eadf8930fb Add -width <max_width> support in the wrap highlighter
Will always wrap at the minimum between max_width and actual window
width.

Fixes #1424
2017-06-08 07:05:44 +01:00
Maxime Coste
acc2dbf79c Move variable closer to its point of use 2017-06-07 20:33:34 +01:00
Maxime Coste
56b52bdb3d Filter debug buffers before creating the SafePtr vector in -buffer * 2017-06-07 20:25:39 +01:00
Maxime Coste
e947c20ce0 Do not disable incsearch option in context wrap
It will only trigger on idle, which should not happen during non-
interactive contexts.
2017-06-07 20:24:37 +01:00
Maxime Coste
03f8679e5c Only trigger PromptEvent::Change on idle
There is no need to trigger that event on every keystroke, we can
trigger it only when we hit the idle timeout, avoiding computations
when input keys are pasted.
2017-06-07 20:16:19 +01:00
Maxime Coste
b81500c0e4 Use microseconds instead of milliseconds for built-in profiling 2017-06-07 20:06:47 +01:00
Maxime Coste
1c0bdd8c85 Run BufCreate hook *before* Buf{Open,New}File 2017-06-07 19:46:43 +01:00
Maxime Coste
4495aefea6 Use range based find_if wrapper for finding shell env vars 2017-06-07 19:46:16 +01:00
Maxime Coste
d9b1ee13d9 Change merge_overlapping to guarantee we dont break the sorting
In certain cases, we could end up with a unsorted selection list,
leading to broken invariant.
2017-06-07 19:30:44 +01:00
Maxime Coste
1d4093bcdc Fix memory errors due to sharing the MatchResults in the Hooks struct
A hook execution triggered by another hook execution would change the
shared MatchResults object, which is a wrong behaviour and makes it
point to dead string data.
2017-06-07 19:18:15 +01:00
Maxime Coste
575e6fe325 Remove unneeded unknown_expand exception type 2017-06-07 19:01:26 +01:00
Maxime Coste
b7982c6ee3 Use range based accumulate wrapper instead of std::accumulate 2017-06-07 13:36:47 +01:00
Maxime Coste
a0d848da8d Do not allow whitespaces as % string delimiters 2017-06-07 13:09:45 +01:00
Maxime Coste
f0285a8e60 Move hook executing logic into HookManager
The existing HookManager was able to run arbitrary hook functions,
but in practice was only used for user provided textual hooks.

That separation was causing some suboptimal performances, by moving
that logic directly in the hook manager we can improve hook filtering
performance which is a big part of startup time when opening lots
of files.
2017-06-07 12:33:39 +01:00
Maxime Coste
4606453fed Avoid expensive copies of Hooks in HookManager::run_hooks
Use a deferred deletion mechanism to ensure hooks are kept alive
for the duration of run_hooks.
2017-06-07 12:15:16 +01:00
Maxime Coste
87477cf2bb Move NestedBool to utils.hh 2017-06-07 11:55:42 +01:00
Maxime Coste
21da24235a Small style tweak 2017-06-07 11:40:13 +01:00
Maxime Coste
5a5d2ad7cb noexcept-ify utf8::iterator methods 2017-06-07 10:58:49 +01:00
Maxime Coste
cb6ef4afb6 noexept-ify BufferIterator methods 2017-06-07 10:58:01 +01:00
Maxime Coste
502c5da0e9 Fix useles copy of hook_func in HookManager::add_hook parameter 2017-06-07 09:54:58 +01:00
Maxime Coste
295fa5b27d Use String default ctor instead of empty string 2017-06-07 09:54:11 +01:00
Maxime Coste
a5e7b6a22f Use a vector instead of a hash map to store hooks 2017-06-07 09:46:05 +01:00
Delapouite
86cc66577b Clarify rotation direction between <'> and <a-'> in info help 2017-06-07 08:53:33 +02:00
Maxime Coste
fd00e1f9ae Merge remote-tracking branch 'Delapouite/underscore' 2017-06-07 07:48:57 +01:00
Maxime Coste
d214969d5b Merge remote-tracking branch 'Delapouite/buf_line_count' 2017-06-07 07:48:32 +01:00
Maxime Coste
9cb9e77dc2 Merge remote-tracking branch 'Delapouite/view-count' 2017-06-07 07:45:53 +01:00
Delapouite
09daaa8b3a Expose kak_buf_line_count 2017-06-06 14:29:06 +02:00
Delapouite
2f84051efb Add underscore char as a valid punctuation for text-object pairs 2017-06-06 12:04:53 +02:00
Delapouite
b4af4994fb Remember previous NormalParams::count in view-lock mode 2017-06-06 09:52:02 +02:00
Maxime Coste
36364d5f6b Fix spurious copies being made when using the format function
We were not correctly forwarding the arguments, leading to copies of
'const String&' parameters.
2017-06-06 08:50:51 +01:00
Maxime Coste
73ecbdbc97 Log errors written to the status line inside the debug buffer as well
Fixes #1410
2017-06-04 08:48:23 +01:00
Maxime Coste
261e0fabcc Improve readability of command docstrings by changing formatting
Fixes #1378
2017-06-04 08:37:51 +01:00
Maxime Coste
6101138606 Change RankedMatch ordering to favor / characters
This will improve matching of filenames, as 'foo/' will be sorted
before 'foo-bar' due to `/` coming before `-` in the new ordering
(it comes after in ascii/unicode order).

Fixes #1395
2017-06-04 08:27:53 +01:00
Maxime Coste
96813ee824 Document the * behaviour change in the startup message 2017-06-03 18:17:44 +01:00
Maxime Coste
c1e4b4ff79 Strip surrounding whitespaces in *
Fixes #1406
2017-06-03 18:16:40 +01:00
Maxime Coste
8dc9f8cc22 Support option_add for HashMap options
Fixes #1407
2017-06-03 18:01:38 +01:00
Maxime Coste
6906e6924b Merge remote-tracking branch 'occivink/ignore-debug' 2017-06-03 15:26:51 +01:00
Maxime Coste
a313dab90f Merge remote-tracking branch 'Delapouite/include' 2017-06-03 14:46:03 +01:00
Maxime Coste
c440bbde81 Merge remote-tracking branch 'Delapouite/shift-modes' 2017-06-03 14:45:48 +01:00
Maxime Coste
58dfd76dca Small formatting fix 2017-06-03 14:02:43 +01:00
Maxime Coste
0e88a9695a Add support for more selection combining operations
Change append to 'a', add select longest/shortest, union and
intersection.
2017-06-03 13:45:59 +01:00
Delapouite
e8707298c1 Refine info titles to distinguish G and V modes 2017-05-31 19:57:56 +02:00
Delapouite
ccecc2b7cf fix: remove duplicate include to containers.hh in face_registry.cc 2017-05-30 20:01:31 +02:00
Maxime Coste
f6e00ff00f Merge remote-tracking branch 'Delapouite/typo' 2017-05-29 10:20:21 +01:00
Maxime Coste
b030088d60 Re-hide hardware cursor, seems its causing troubles with various terminal emulator 2017-05-29 10:02:18 +01:00
Maxime Coste
62def0f4df Tweak alias command docstring not to end up with an eol 2017-05-28 19:58:24 +01:00
Maxime Coste
76d3425bf9 Change ncurses_ui info box generation logic to use a Vector<String>
We were generating a string, then splitting it into lines, there is
no need for that, we can directly generate a vector of lines and
simplify the code.
2017-05-28 19:58:18 +01:00
Olivier Perret
9697f61b0d Exclude debug from eval/exec over all buffers 2017-05-27 23:44:53 +02:00
Delapouite
c9c868d4de Fix typos in info-box: availabe, encodngs, highglighters… 2017-05-27 22:37:25 +02:00
Maxime Coste
e97f23f2be Use more precise wording for object selection info box 2017-05-27 09:29:51 +01:00
Maxime Coste
bc92633ddd Put the doc/manpages/ pages in the 'k' section 2017-05-27 07:35:13 +01:00
Maxime Coste
72acb0177d Parse meta as 8 bit in Normal mode to fix the terminals using that
The solution is a bit hackish, as we only consider the 8th bit to
mean alt in normal mode, because its unlikely accentuated characters
are going to be mapped there. It fixes using Alt on xterm, and
probably on iterm2 as well (not requiring the meta-sends-esc config
change anymore)
2017-05-27 06:18:39 +01:00
Maxime Coste
b9080d8b2c Document line-flags -> line-specs and update-option in breaking changes 2017-05-27 06:18:02 +01:00
Maxime Coste
f57e72ab4a Small code tweak 2017-05-27 06:17:44 +01:00
Maxime Coste
f2c0ee62ce Remove unneeded explicit conversion 2017-05-26 09:51:32 +01:00
Maxime Coste
57ef592f57 Remove unused and potentially error prone constructor from ArrayView
Add as well a SFINAE check to the vector constructor to avoid constructing
an array_view from derived types with a different size.
2017-05-26 09:25:25 +01:00
Maxime Coste
2307cf500c Small formatting tweak 2017-05-26 08:38:12 +01:00
Maxime Coste
11f924c528 Use a ScopedSetBool instead of manual set/unset for InputModes::Normal::m_in_on_key 2017-05-26 08:28:34 +01:00
Maxime Coste
5a93159012 Small code style tweak 2017-05-26 08:19:35 +01:00
Maxime Coste
b1bb9d0cb2 Small documentation tweak in display_buffer.hh 2017-05-26 08:00:15 +01:00
Maxime Coste
6e389512f5 Modernize the way we compute memory domains from type
Use a constexpr function instead of a template type
2017-05-26 07:59:18 +01:00
Dan Rosén
b1735ae76e Expose last entered command in register : 2017-05-25 21:48:41 +02:00
Maxime Coste
83d85df26e Add an update-option command to update range-descs/line-descs options
update-option will make the range-descs and line-descs option up to
date with the latest buffer modfications, changing the ranges/lines
to where they moved according the modifications since the timestamp
on the option.
2017-05-25 19:54:08 +01:00
Maxime Coste
f014eb7052 Fix command parsing bug when commenting after a command
When a comment was present directly on the same line after a command,
we did not correctly see the command as terminated and would join
continue parsing the next line.
2017-05-25 08:30:49 +01:00
Maxime Coste
c4db46b58b Rename line-flags option type to line-specs
Generalize this option type, which is a timestamped list of
<line number>|<arbitrary string>. That way this type is not strongly
coupled with the flag-lines highlighter, and can be reused for other
use cases.
2017-05-24 15:41:43 +01:00
Maxime Coste
074666d298 Small code tweak 2017-05-24 15:40:16 +01:00
Maxime Coste
119a5b8442 Fix hardware cursor positioning in prompt when status bar is on bottom 2017-05-24 15:20:23 +01:00
Maxime Coste
720e567ac2 Remove unneeded forward declaration 2017-05-23 19:11:13 +01:00
Maxime Coste
7ee3039a79 Do not avoid eol in insert mode vertical movement 2017-05-22 17:04:01 +01:00
Maxime Coste
28bcb45b92 Fix bug where idle timers of disabled modes were still run 2017-05-22 16:57:22 +01:00
Maxime Coste
bc11e52960 Remove virtual destructor from OptionManagerWatcher
We should never destruct anything through an OptionManagerWatcher
pointer, so having all those destructor virtual makes no sense.
2017-05-22 10:31:56 +01:00
Maxime Coste
bdcfe30834 Fix scrolling when cursor is on a wrapped part of the last displayed line 2017-05-22 08:54:25 +01:00
Maxime Coste
ad9ad7e603 Fix vertical movement with tabstops
Fixes #1388
2017-05-21 08:24:44 +01:00
Maxime Coste
df4eadd2f5 Merge remote-tracking branch 'danr/Add-modified-value-if-buffer-has-modifications-not-saved' 2017-05-21 06:43:19 +01:00
Maxime Coste
248ffa543b Merge branch 'master' of git://github.com/bmwiedemann/kakoune 2017-05-21 06:34:36 +01:00
Bernhard M. Wiedemann
4788112f2d Always link input files in the same order
to produce bit-identical 'kak' binaries
See https://reproducible-builds.org/ for why this is good.

This change is needed because filesystem ordering is random
and ordering matters for the g++ linker
2017-05-20 22:50:25 +02:00
Bernhard M. Wiedemann
78991c4820 do not embed timestamps in .gz files
using gzip -n to produce bit-identical results
and -9 to compress a bit better
2017-05-20 22:49:36 +02:00
Maxime Coste
b440d9f537 Change <a-z>/<a-Z> to combine selections instead of appending 2017-05-20 10:31:49 +01:00
Dan Rosén
625e7f8249 Add modified value if buffer has modifications not saved
Closes #1386
2017-05-18 17:39:30 +02:00
Maxime Coste
91ed57c985 Make hardware cursor visible in ncurses ui 2017-05-18 06:28:08 +01:00
Maxime Coste
973487abcd Small reorganization in the normal keymap 2017-05-18 06:05:45 +01:00
Maxime Coste
a578c51baf Move constexpr compatible Array struct to meta.hh 2017-05-17 20:20:31 +01:00
Maxime Coste
3917d26709 small code cleanups 2017-05-17 20:17:16 +01:00
Maxime Coste
7acf11c851 Add missing std::move in on_scope_end implementation 2017-05-17 20:12:36 +01:00
Maxime Coste
0229baf6ba Add range-faces -> range-specs rename to the breaking changes message 2017-05-17 19:42:23 +01:00
Maxime Coste
dfaafcd49a Rename range-faces to range-specs
range-faces are now used to replace-range highlighters, where the string
part is not interpretted as a face but as a display line, so the name was
not relevant anymore.
2017-05-17 19:40:52 +01:00
Maxime Coste
44d2db2706 Add a basic replace-ranges highlighter
replace-ranges is takes a range-faces option, but treats the face
string as a display line to be parsed, and replaces the range display
with this display line.
2017-05-15 09:12:10 +01:00
Maxime Coste
468bd63569 Tweak buffer change code so that WinDisplay hooks can use info boxes 2017-05-13 11:18:21 +01:00
Maxime Coste
3a0d9481ac Add the -E switch for server initialization commands
Fixes #1361
2017-05-13 11:05:09 +01:00
Olivier Perret
ec636ce04b update line-flags and flag_lines doc to reflect current status 2017-05-11 20:45:28 +02:00
Maxime Coste
75e6b54ae2 Disable horizontal scroll offset support when wrapping 2017-05-11 09:23:20 +01:00
Maxime Coste
8fa7e67abc Use LineCount instead of int for ncurses assistant margin 2017-05-10 11:35:12 +01:00
Maxime Coste
a0752d8d46 Merge remote-tracking branch 'lenormf/fix-assistant-align' 2017-05-10 11:31:26 +01:00
Olivier Brewaeys
3f42e45ff6 Small spelling error fix
John Doe Copyright Waiver

  I dedicate any and all copyright interest in this software to the
  public domain.  I make this dedication for the benefit of the public at
  large and to the detriment of my heirs and successors.  I intend this
  dedication to be an overt act of relinquishment in perpetuity of all
  present and future rights to this software under copyright law.
2017-05-10 12:17:11 +02:00
Maxime Coste
9300a981eb Add support for the -passes option to the ref highlighter 2017-05-10 10:31:34 +01:00
Maxime Coste
5483a087d2 Make ref highlighter work for all highlight passes 2017-05-10 08:16:31 +01:00
Maxime Coste
59a0841baa Update group highlighter docstring to document the passes option 2017-05-09 10:02:01 +01:00
Maxime Coste
12c498a0bd Distinguish between BufferRanges and InclusiveBufferRanges
Fixes #1257
2017-05-08 12:34:57 +01:00
Maxime Coste
f9a609e479 Refactor range highlighting into a struct 2017-05-08 12:05:45 +01:00
Maxime Coste
6a97455b3b Do not push a final spurious command separators when parsing commands
Fixes #1336
2017-05-08 11:46:03 +01:00
Maxime Coste
ad1175fefc Update wrap highlighter docstring 2017-05-08 11:30:51 +01:00
Maxime Coste
b0b40485ce Move SimpleHighlighter as an implementation detail 2017-05-08 11:29:23 +01:00
Maxime Coste
a5d4dbc16e Fix unneeded and wrong splitting of display atom during wrapping 2017-05-07 16:26:14 +01:00
Maxime Coste
e63156bcfb Fix infinite loop with longer than width words in word wrap mode 2017-05-07 16:26:14 +01:00
Maxime Coste
4e9193a975 Slight highlighting related code cleanup 2017-05-07 16:26:14 +01:00
Maxime Coste
b4b08d10b4 Fix assert when wrapping a line that takes more than the full window height 2017-05-07 16:26:14 +01:00
Maxime Coste
17b19dc057 Ensure window position line is inside buffer 2017-05-07 16:26:14 +01:00
Maxime Coste
4032d05c79 Reject 0 wrap column 2017-05-07 16:26:14 +01:00
Maxime Coste
8dd808726d Add support for word wrapping with the -word switch to the wrap highlighter 2017-05-07 16:26:14 +01:00
Maxime Coste
bb17fb6dd3 Add a -passes switch support for the group highlighter 2017-05-07 16:26:14 +01:00
Maxime Coste
fa5ae65f3a Move passes logic to the base Highlighter class
Validate that childs of HighlighterGroup are matching its passes.
2017-05-07 16:26:14 +01:00
Maxime Coste
55631c8d8e Detect errors while parsing flag line and handle them
Fixes #1345
2017-05-07 16:26:14 +01:00
Maxime Coste
053544d740 Disable horizontal scrolling when running a WrapHighlighter 2017-05-07 16:26:14 +01:00
Maxime Coste
23e38a254f Introduce a LineNumberWrapped face 2017-05-07 16:26:14 +01:00
Maxime Coste
39826afde5 Make scrolling around work more correctly with wrapping 2017-05-07 16:26:14 +01:00
Maxime Coste
bd3ba77e96 Make Wrap highlighter only wrap on window width. 2017-05-07 16:26:14 +01:00
Maxime Coste
5ee21ec932 Respect tabstop in Buffer::offset_coord 2017-05-07 16:26:14 +01:00
Maxime Coste
57c2b32d20 Introduce highlighting phases and display setup computation
Highlighters now run in 3 phases:
Wrap, Move, and Colorize. That way we guarantee the wrap
highlighter runs first, then eventual line numbers/flags,
and finally the colorizers.

We also run a `compute_display_setup` method thats responsible
for computing the lines that will be displayed, eventually
scrolling the view to ensure the cursor is visible.
2017-05-07 16:26:14 +01:00
Maxime Coste
a4f9e29d60 Add a wrap highlighter 2017-05-07 16:26:14 +01:00
Maxime Coste
93408e4b76 Do not use any display information to determine where the cursor moves 2017-05-07 16:26:14 +01:00
Maxime Coste
3a3144f3f5 Fix use of invalidated iterator in the command map on exception
The command map can get mutated by command execution, so the iterators
can get invalidated (now that we use our curstom HashMap implementation,
all iterators are potentially invalidated by insert/removal)
2017-05-07 16:25:34 +01:00
Maxime Coste
80f1056851 Support appending selections to empty register
Fixes #1332
2017-04-25 17:25:44 +01:00
Maxime Coste
26a105b2b7 Style tweak in highglighters.cc 2017-04-24 07:04:15 +01:00
Maxime Coste
e264d189eb Add noexcept specifiers to unicode and utf8 functions 2017-04-23 12:47:26 +01:00
Maxime Coste
caed8a55c7 Set stdin to /dev/null instead of closing it when we dont have data to pipe to child
Fixes #1330
Fixes #1331
2017-04-22 09:39:55 +01:00
Maxime Coste
e722868c60 Fix generation of empty erase changes
Fixes #1308
2017-04-20 17:31:27 +01:00
Maxime Coste
ab3a255d58 Merge remote-tracking branch 'lenormf/command-force-write' 2017-04-20 16:25:24 +01:00
Maxime Coste
dbcddafbfd Change utf8::to_next/to_previous so that they are more symetrical
The previous implementation could yield different positions when
iterating forward and backward, leading to confusion in boost regex.

This makes an existing problem a bit more visible: iterating with
to_next and with read_codepoint wont behave the same way, as
read_codepoint will put the iterator onto the byte following the
utf8 codepoint, whereas to_next will put it on the next utf8
character start byte, which might be different if the buffer content
is not valid utf8.

Fixes #1195
2017-04-20 16:18:49 +01:00
Frank LENORMAND
51ab59cd36 src: Implement a write! command
This commit allows "forced" writes to a write-protected file, by
attempting to temporarily grant the current user write permissions on
it. After the buffer has been written, the previous permissions are
restored if the file existed, or set to 0644 otherwise.
2017-04-20 17:13:42 +03:00
Maxime Coste
30e6387071 Assume filename passed to write_buffer_to_file is already parsed 2017-04-20 09:55:56 +01:00
Maxime Coste
5103b15b84 Safer code for parsing commands
Fix some possible past the end of target string reads
Fixes #1310 (maybe, probably, who knows)
2017-04-19 22:04:03 +01:00
Maxime Coste
34bf8c23e1 Fix uninitialised value for cursor mode 2017-04-19 21:23:16 +01:00
Maxime Coste
bee2180da7 Do not try to split non range atoms in column highlighter
That means we wont have a very nice interaction between show_whitespaces
and column highlighters, but thats the simplest fix for now, if we want
a better behaviour we need to introduce a way to know that a replaced
range is splittable (meaning it means to have the same amount of columns
as the range it replaces)

Fixes #1275
2017-04-19 21:15:36 +01:00
Maxime Coste
52ffa98787 When not sending data to a subprocess, close its stdin
We were letting stdin untouched, which meant child processes had
access to our terminal input. That meant `!fmt` was trying to read
from our terminal input and catching keystrokes.

Fixes #1281
2017-04-17 20:39:24 +01:00
Maxime Coste
91bfd714e4 Place hardware terminal cursor at the current main cursor/prompt cursor position
Fixes #1318
Also fixes https://gitlab.com/gnachman/iterm2/issues/5408
2017-04-12 10:39:17 +01:00
Maxime Coste
80dd9ec4cb Name key '+' as plus and '-' as minus 2017-04-11 10:47:15 +01:00
Maxime Coste
413d8b7ddd Change multi modifier key syntax to be <c-a-space> instead of <ca-space>
Better fix for #1311
2017-04-11 10:44:14 +01:00
Maxime Coste
112bd156e4 Merge remote-tracking branch 'lenormf/fix-filter-backup-suffix' 2017-04-10 21:39:24 +01:00
Maxime Coste
c1c40a4b56 Remove some now unneeded uses of const String& params
HashMap supports finding String from StringView.
2017-04-10 21:33:20 +01:00
Maxime Coste
a4b82131e5 Add support for parsing multiple modifiers in keys
<ca-key> means control+alt key, <ac-key> works as well.
Fixes #1311
2017-04-10 21:19:56 +01:00
Frank LENORMAND
16068321c1 src: Support the -help flag
This commit allows a help message to be printed when a `-help` flag is
passed to the editor, which will subsequently quit after a summary and a
description of all the flags available have been displayed.

The GNU convention (passing a single `--help` argument to the program)
is also supported, although undocumented.

The man page also now documents the `+:` argument, although unrelated to
the original changeset.
2017-04-10 22:23:30 +03:00