Commit Graph

1133 Commits

Author SHA1 Message Date
Hiltjo Posthuma
384830110b update FAQ
- add common question about the w3m image drawing hack.
- remove some bad advise about $TERM.
- change some links to https.
2019-11-17 20:04:52 +01:00
Avi Halachmi (:avih)
2e54a21b5a OSC 52 - copy to clipboard: don't limit to 382 bytes
Strings which an application sends to the terminal in OSC, DCS, etc
are typically small (title, colors, etc) but one exception is OSC 52
which copies text to the clipboard, and is used for instance by tmux.

Previously st cropped these strings at 512 bytes, which for OSC 52
limited the copied text to 382 bytes (remaining buffer space before
base64). This made it less useful than it can be.

Now it's a dynamic growing buffer. It remains allocated after use,
resets to 512 when a new string starts, or leaked on exit.

Resetting/deallocating the buffer right after use (at strhandle) is
possible with some more code, however, it doesn't always end up used,
and to cover those cases too will require even more code, so resetting
only on new string is good enough for now.
2019-11-10 22:45:54 +01:00
Hiltjo Posthuma
289c52b7aa CSIEscape, STREscape: use size_t for buffer length 2019-11-10 22:45:54 +01:00
Avi Halachmi (:avih)
7ceb3d1f72 STREscape: don't trim prematurely
STRescape holds strings in escape sequences such as OSC and DCS, and
its buffer is 512 bytes.

If the input is too big then trailing chars are ignored, but the test
was off-by-1 such that it took 510 chars instead of 511 (before a
terminating NULL is added).

Now the full size can be utilized.
2019-11-10 22:45:54 +01:00
Avi Halachmi (:avih)
ea4d933ed9 base64dec: don't read out of bounds
Previously, base64dec checked terminating input '\0' every 4 calls to
base64dec_getc, where the latter progressed one or more chars on each
call, and could read past '\0' in the way it was used.

The input to base64dec currently comes only from OSC 52 escape seq
(copy to clipboard), and reading past '\0' or even past the buffer
boundary was easy to trigger.

Also, even if we could trust external input to be valid base64, there
are different base64 standards, and not all of them require padding
to 4 bytes blocks (using trailing '=' chars).

It didn't affect short OSC 52 strings because the buffer is initialized
to 0's, so typically it did stop within the buffer, but if the string
was trimmed to fit (the buffer is 512 bytes) then it did also read past
the end of the buffer, and the decoded suffix ended up arbitrary.

This patch makes base64dec_getc not progress past '\0', and instead
produce fake trailing padding of '='.

Additionally, at base64dec, if padding is detected at the first or
second byte of a quartet, then we identify it as invalid and abort
(a valid quartet has at least two leading non-padding bytes).
2019-11-10 22:45:54 +01:00
Sebastian J. Bronner
83866428de Fix tmux terminfo extensions Se and Ss
The tmux terminfo extensions Ss and Se are currently specified as
booleans in `st.info`. They should be strings. See
eeedb43ae8/tty-term.c
lines 254 and 265.

I have used the values from
https://invisible-island.net/ncurses/terminfo.src.html#toc-_S_I_M_P_L_E_T_E_R_M
for this patch.
2019-11-05 19:51:35 +01:00
Ingo Lohmar
1f09f0b0bb apply hints before initial mapping (ICCCM)
For WM_CLASS this is mentioned in the ICCCM docs
https://tronche.com/gui/x/icccm/sec-4.html#s-4.1.2.5
(third sentence).

When changing the WM_CLASS from the command line, this is necessary for
window managers to pick it up before applying class-based rules.
2019-10-26 11:47:24 +02:00
Avi Halachmi (:avih)
a2c479c4c8 mouse shortcuts: allow using forcemousemod (e.g. shift)
The recent mouse shurtcuts commits allow customization, but ignore
forcemousemod mask (default: shift) as a modifier, for no good reason
other than following the behavior of the KB shortcuts.

Allow using forcemousemod too, which now can be used to invoke
different shortcuts, though the automatic effect of forcemousemod will
be lost for buttons which use mask with forcemousemod.

E.g. the default is:

static uint forcemousemod = ShiftMask;
...
{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
...

where ttysend will be invoked for button4 with any mod when not in mouse
mode, and with shift when in mouse mode.

Now it's possible to do this:
{ ShiftMask,            Button4, ttysend,        {.s = "foo"} },
{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },

Which will invoke ttysend("foo") while shift is held and ttysend("\031")
otherwise. Shift still overrides mouse mode, but will now send "foo".

Previously with this setup the second binding was always invoked
because the forceousemod mask was always removed from the event.

Buttons which don't use forcemousemod behave the same as before.

This is useful e.g. for the scrollback mouse patch, which wants to
configure shift+wheel for scrollback, while keeping the normal behavior
without shift.
2019-10-24 15:34:25 +02:00
Avi Halachmi (:avih)
d2b75db8d7 mouse shortcuts: don't hardcode selpaste
Because selpaste is activated on release, a release flag was added to
mouse shortcuts which controls whether activation is on press/release,
and selpaste binding to button2 was moved to config.h .

button1 remains the only hardcoded mouse button - for selection + copy.
2019-10-13 21:46:31 +02:00
Avi Halachmi (:avih)
b6d280de6d mouse shortcuts: allow override for all shortcuts
Allow forceselmod to override all mouse shortcuts rather than only
selection, and rename it to forcemousemod as it's now more appropriate.

This will affect mouse shortcuts which use mask other than XK_ANY_MOD.

This does not affect the default behavior because the default mouse
shortcuts (wheel) use XK_ANY_MOD, where forceselmod already activated
the override also before this change.

Previously, if a mouse shortcut was configured with a specific mod and
forceselmod was held, then the shortcut did not execute unless the
configured mod included forceselmod.
2019-10-13 21:46:31 +02:00
Avi Halachmi (:avih)
ba7f4d69af mouse shortcuts: allow same functions as kb shortcuts
Previously mouse shortcuts supported only ttywrite.

This required adding an "Arg" function ttysend - which does what the
original mouse shortcuts did.
2019-10-13 21:46:31 +02:00
Hiltjo Posthuma
2b8333f553 config.def.h: remove crlf value section
this is not used anymore.

patch sent as an ed script using RFC2549 by k0ga.
2019-08-26 17:58:47 +02:00
Hiltjo Posthuma
caa1d8fbea FAQ: add entry about color emoji Xft bug
This has been asked many times on IRC and the mailinglist. Make it easier to
find information about this particular Xft issue by adding it to the FAQ.
2019-05-17 13:00:10 +02:00
Avi Halachmi (:avih)
f1546cf9c1 selection: fix view to match actual selection on first cell 2019-04-14 13:50:20 +02:00
Hiltjo Posthuma
21367a040f revert part of commit add0211522
"use iswspace()/iswpunct() to find word delimiters

    this inverts the configuration logic: you no longer provide a list of
    delimiters -- all space and punctuation characters are considered
    delimiters, unless listed in extrawordchars."

Feedback from IRC and personal preference.
2019-03-15 20:40:16 +01:00
Hiltjo Posthuma
b650256044 dont print color warning on color reset OSC 104 without parameter
also print explicitly "(null)" when printf "%s" p=NULL.

noticed when exiting mutt: printf '\x1b]104\x07'
2019-03-15 14:47:08 +01:00
Hiltjo Posthuma
9acec468fb minor code-style, initialize var at the top of function 2019-03-15 14:42:50 +01:00
Hiltjo Posthuma
927621f6da config.def.h: tweak extra worddelimiters
This changes the selection more like xterm.
To test try: "find /" and select a path.
2019-03-15 12:31:54 +01:00
Lauri Tirkkonen
add0211522 use iswspace()/iswpunct() to find word delimiters
this inverts the configuration logic: you no longer provide a list of
delimiters -- all space and punctuation characters are considered
delimiters, unless listed in extrawordchars.
2019-03-15 12:25:13 +01:00
Lauri Tirkkonen
d5efd256aa replace utf8strchr with wcschr 2019-03-15 12:24:13 +01:00
Lauri Tirkkonen
75b4ba4b4b be silent about explicitly unhandled mouse modes 2019-03-13 17:51:58 +01:00
Hiltjo Posthuma
ed68fe7dce simplify (greedy) font caching allocating a bit
POSIX says:
"If ptr is a null pointer, realloc() shall be equivalent to malloc() for the
 specified size."
2019-03-03 11:29:43 +01:00
Hiltjo Posthuma
4e0135afec style: remove double empty newlines 2019-03-03 11:23:54 +01:00
magras
a8cb8e9454 fix use after free in font caching algorithm
Current font caching algorithm contains a use after free error. A font
removed from `frc` might be still listed in `wx.specbuf`. It will lead
to a crash inside `XftDrawGlyphFontSpec()`.

Steps to reproduce:
$ st -f 'Misc Tamsyn:scalable=false'
$ curl https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-demo.txt

Of course, result depends on fonts installed on a system and fontconfig.
In my case, I'm getting consistent segfaults with different fonts.

I replaced a fixed array with a simple unbounded buffer with a constant
growth rate. Cache starts with a capacity of 0, gets increments by 16,
and never shrinks. On my machine after `cat UTF-8-demo.txt` buffer
reaches a capacity of 192. During casual use capacity stays at 0.
2019-03-03 11:18:31 +01:00
Ivan Tham
e85b6b6466 better Input Method Editor (IME) support
Features:

- Allow input methods swap with hotkey (E.g. left ctrl + left shift).
- Over-the-spot pre-editing style, pre-edit data placed over insertion point.
- Restart IME without segmentation fault.

TODO:

- Automatically pickup IME if st started before IME
2019-02-12 18:45:15 +01:00
Hiltjo Posthuma
75f92eb348 bump version to 0.8.2 2019-02-09 12:48:39 +01:00
Hiltjo Posthuma
3be4cf11d7 config: add Shift+Insert as selpaste() again
This was changed before in:
commit 20f713548d on Wed Jan 25 19:17:38 2017
2019-01-10 18:16:17 +01:00
Paride Legovini
16d98738e7 Let the user specify CPPFLAGS
This complements the work done in d4928ed, allowing the user to specify
the preprocessor flags with the CPPFLAGS environment variable. This is
useful for example to specify preprocessor macros with -D.

CFLAGS could be used instead, but CPPFLAGS is more correct and is expected
to be honored in some cases. For example, the helper scripts to build
Debian packages make use of CPPFLAGS, but the variable is currently
being ignored unless manually appended to CFLAGS.
2019-01-10 18:13:13 +01:00
Paride Legovini
e23acb9188 Set the path of pkg-config in a variable instead of hardcoding it
In this way the path of pkg-config can be overridden from the command
line. This is useful for example when cross-compiling.
2019-01-04 16:00:54 +01:00
Hiltjo Posthuma
7e19e11676 Makefile: fix dependencies on config.h
patch by Younes Khoudli (changed slightly). Thanks
2019-01-04 12:33:01 +01:00
Lauri Tirkkonen
096b125db7 output child WEXITSTATUS/WTERMSIG on abnormal termination 2018-12-11 18:36:02 +01:00
Hiltjo Posthuma
d7bf023b2f fix memory leak in xloadcols()
reported by Avi Halachmi (:avih)" <avihpit@yahoo.com>

patch slightly changed by me.
2018-11-04 14:35:07 +01:00
Hiltjo Posthuma
b4d68d4daa st: small typofix in comment 2018-11-04 14:30:56 +01:00
Hiltjo Posthuma
30ec9a3dc3 small code-style fix 2018-09-11 19:06:35 +02:00
Quentin Rameau
67d0cb65d0 Remove the ISO 14755 feature
And move it to the patches section.
Keeping it would force to add an exec pledge on OpenBSD, and some
people think it's bloated, so bye!
2018-09-11 19:05:55 +02:00
Hiltjo Posthuma
4f4bccd162 Revert "Simplify cursor color handling"
This reverts commit 1911c9274d.
2018-07-17 20:01:58 +02:00
Hiltjo Posthuma
8ed7a4b3b7 Revert "Make cursor follow text color"
This reverts commit b51bcd5553.
2018-07-17 20:01:57 +02:00
Hiltjo Posthuma
732be223ee Revert "Fix crash when cursor color is truecolor"
This reverts commit 5535c1f04c.
2018-07-17 20:01:54 +02:00
Jules Maselbas
5535c1f04c Fix crash when cursor color is truecolor
Reported-by: Ivan Tham <pickfire@riseup.net>
2018-07-15 18:16:52 +02:00
Jules Maselbas
b51bcd5553 Make cursor follow text color 2018-07-14 12:49:37 +02:00
Jules Maselbas
1911c9274d Simplify cursor color handling 2018-07-14 12:49:35 +02:00
Jules Maselbas
29f341da7c Fix crash on resize
Prevent to realloc xw.specbuc with a negative number of col.
Add proper hints for the minimal size, for one character.
2018-06-30 20:51:46 +02:00
Hiltjo Posthuma
dc3b5babf1 config.mk: remove extra newline before EOF 2018-06-02 17:11:14 +02:00
Hiltjo Posthuma
235a783e03 code-style for pledge(2)
feedback from Klemens, thanks
2018-05-25 13:04:09 +02:00
Hiltjo Posthuma
30ce2cc002 Pledge on OpenBSD 2018-05-25 11:59:28 +02:00
Hiltjo Posthuma
041912a791 error message style and use strerror in a few places 2018-03-29 18:30:05 +02:00
Hiltjo Posthuma
bd3f7fd842 st -v: remove years and copyright text 2018-03-29 18:18:30 +02:00
Daniel Tameling
74cff67bd7 set sel.alt in selstart instead of selextend 2018-03-29 18:15:29 +02:00
Hiltjo Posthuma
6f0f2b7ec3 bump version to 0.8.1 2018-03-20 21:29:10 +01:00
Hiltjo Posthuma
f4020b2cc4 fix regression by selecting clipboard text
"restore the old behaviour that the primary doesn't get deleted by a simple
left click"

Patch by Daniel Tameling <tamelingdaniel@gmail.com>, thanks!
2018-03-20 21:25:30 +01:00