add _NET_WM_NAME

Simplify logic in kmap().

Simplify logic in match().

Merge remote-tracking branch 'origin/master' into omaster

Ignore numlock (Mod2Mask) for button events too.

Conflicts:
	config.def.h
	st.c

Avoid buffer overrun in bpress()

Use correct type for Mousekey.b (XButtonEvent.button).

New ttysend() function calls ttywrite() and techo(). Honor MODE_ECHO when pasting in selnotify().

Avoid buffer overrun in kpress() and remove limit on shortcut strings.

Simplify Mod1 logic in kpress(), eliminating locals and a memcpy.

Add support for multiple charset definitions

vt100 has support for two defined charset, G0 and G1. Each charset
can be defined, but in each moment is selected only one of both
charset. This is usually used selecting a national charset in G0
and graphic charset in G1, so you can switch between graphic
charset and text charset without losing the national charset
already defined.

st hasn't support for national charsets, because it is an utf8
based terminal emulator, but it has support for graphic
charset because it is heavily used, but it only supports G0,
without understanding G1 selection sequences, which causes some
programs in some moments can print some garbage in the screen.

This patch adds a fake support for multiple charset definitions,
where we only support graphic charset and us-ascii charset, but
we allow more of one charset definition.

This patch allow define G0 until G3 charsets, but only accepts
select G0 or G1, and it accepts some national charset definitions
but all of them are mapped to us-ascii.

People, learn to keep to styles. Thanks.

Fix save/restore cursor

st was assuming that save/restore cursor position was independent
of the screen that was shown in each moment, but it is not true,
because each screen has a different save/restore buffer. This
patch fixes it.

Add DSR cursor position sequence

Fix core in multi-line selection on OpenBSD

OpenBSD 5.3 amd64 release version with the most current st
version from git, crash and dump core when selecting multiple
lines whith the cursor.  This happens, because on line 964
of st.c (gp-1)->mode is accessed, although gp is still
pointing at the beginning of the array term.line[y] (see
line 939 for initialization of gp).

Add bracketed paste mode

This patch enables bracketed paste mode (
http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Bracketed%20Paste%20Mode
).

It's mainly useful for text editors to disable line wrapping and auto
indentation when text is being pasted, rather than typed from keyboard.

On the emulator side, it is supported by at least xterm, urxvt,
gnome-terminal, putty, iterm2; and I have a patch for konsole.

On the application side, vim can be configured easily to handle this, and
I have pending patches for mcedit and joe. Probably many others also
support it.

Fix some bugs in mouse tracking logic

* Button number in X10 mode:

  I believe the button - 1 came from "C b is button - 1" from [0].
  However, above this section, it states

    "Normally, parameters (such as pointer poisition and button number)
     for all mouse tracking escape sequences generated by xterm encode
     numeric parameters in a single character as value+32. For example, !
     specifies the value 1."

  Also, from the description of SGR,

    "The encoded button value in this case does not add 32 since that
     was useful only in the X10 scheme for ensuring that the byte
     containing the button value is a printable code."

  This suggests that we should still add 32 to the button value when in
  MODE_MOUSEX10.

* No button release reporting in X10 mode:

    "X10 compatibility mode sends an escape sequence only on button press,
     encoding the location and the mouse button pressed."

* Fix MODE_MOUSEMOTION:

  Currently, motion reporting is skipped when oldbutton == 3
  (corresponding to no button being pressed). However, oldbutton is
  only set on a button press, which will never be 3.

[0]: http://invisible-island.net/xterm/ctlseqs/ctlseqs.html

Default volume of the bell is 0.

Add audible bell

\a is the character for bell, and st is only marking the window as urgent
if it is not active. This patch adds an audible bell which can be disable
with bellvolume variable.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Wide character support.

Thanks "Eon S. Jeon" <esjeon@hyunmu.am>!

Adding some contributors. Thanks to you all!

Correctly initialize altscreen when defaultbg is not 0.

The alternate screen is not properly initialized when st starts. To see
this, set defaultbg in config.h to anything other than 0 (for example, swap
defaultfg and defaultbg), and run:

./st -e sh -c 'tput smcup; read'

You should see that the top-left 80x24 rectangle is black (or whatever
colorname[0] is), while the rest of the screen (if any) has the desired
colorname[defaultbg] color.

The attached patch fixes this by initializing term.c.attr in tnew() before
calling tresize(). It also removes the unnecessary xcalloc() calls, which
misled me on this bug hunt since it is really tclearregion() which
initializes term.lines and term.alt in tresize().

Regarding commit 7e3cff3

Hello.

I reviewed and tested commit 7e3cff3, and made a patch that fixes some
problems in it.

1. There's a semicolon after an if statement, which is obviously a
typo.

2. The current way of calculating text position in "xdraws" yields
inconsistent results in some cases. This is due to the use of
"font->width", which varies. Instead, "xw.cw" has to be used as the
character width.

Sincerely,
Eon

Tmux is using C-b by default.

Thanks for noticing Fidel Barrera Cruz!

Correcting the bitmask value check.

Add terminfo definitions for terminals with meta key

Some programs don't check the value of km and use smm and rmm
capabilites, and they cause the terminal change to meta enabled
mode even in cases where is not desirable.

Allmost all people is using the terminal waiting that meta sends
escape, so rmm and smm are not needed. If someone needs meta
sets 8 bit he can use the correct terminfo definition in TERM.

Fix signess of tdefcolor

tdefcolor() returns -1 on error, while its return type is
unsigned long. At the same time, line 1724 and 1731 are checking the
positivity of its unsigned return value.

Fixed memory leak in xsettitle().

Fix blink mode check

ATTR_BLINK is an attribute for a Glyph and will not be set in term.mode.

Use character size scaling factors

The bounding boxes for characters can be scaled using "cwscale" and "chscale"
to scale the width and height respectively.

Reload colors in reset

Colors definition can be changed using a OSC sequence, so
we have to reload them if we want be sure all the colors
are the correct.

Could be desirable free the colors allocated due to rgb
colors and inverse colors (XftColorAllocValues in xdraws),
but it is impossible due we use the same structure for all
of them.

Add RGB color definition

This patch uses the bit 24 in the color descriptor as an indicator
of RGB color, so we can take the values and generating the XftColour
directly in xdraws.

Improved font caching

I made a patch that improves the performance of font caching mechanism.
This is based on a funny behaviour of FontConfig: it was handling
FcCharSet in a somewhat unexpected way.

So, we are currently adding "a character" to a new FcCharSet, and then
add it to a FcPattern. However, if we toss the FcPattern to FontConfig,
it loads the entire language(charset) that contains the character we
gave. That is, we don't always have to load a new font for each unknown
character. Instead, we can reused cached fonts, and this significantly
reduces the number of calls to extremely slow FontConfig matching
functions.

One more thing. I found that, in libXft, there's a function called
XftCharExists. XftCharIndex internally calls this function, and
does more stuffs if the character does exist. Since the returned index
is never used in st, we should call XftCharExists instead of
XftCharIndex. Please note that I already made this change in the patch.

fix: whitespace

Remove long text being cropped/wrapped to standard 80x24 on launch.

To be more specific, now tty creation is delayed until X window is
actually mapped; last ConfigureNotify before mapping determines
initial tty size.
Please report problems if there are any.

fix: consistent usage of bitmask operations on unicode functions

fix: do not need an extra variable for a single read

Fix match function bugs

There were two problems with match denfinition.

1) There was a forward declaration in the form:

	static inline bool match(uint, uint);

but later the function was defined as:

	inline bool
	match(uint mask, uint state) {

This causes that there were two different functions in the code, one local
and inline, and other inline but extern. All was working without problems
due to we were using -Os, and the compiler was using the extern definition
and it was no expanding the static declaration. If you removed the -Os flag,
then you got linker errors due it was no able to find the static definition
of the static declaration.

2) The mask checking was incorrect because we were doing the test:

	(state & mask) != state

and this test only was saying that at least all the enabled bits of state
were enabled also in mask, but no all the possible bits in mask. This was
the origin of the bug reported by Xavier Cartron, where he said it was
possible activated some shortcuts with some of the modifiers defined in the
config.h file.

Remove unneded call to draw

draw is the function which update the Xwindow with the information st has,
and it is designed in a way that it must be called once in the main loop
(run function), and calling it in other places it is a waste of time.

Fix selection clearing

The way st knows if there is a selection activated is checking if sel.ob.x
is equal to -1. In some parts of the code the way of disabling the selection
was only setting it to -1, but after it you can't be sure if the selection
is clearing from the terminal representation, because it is necessary mark
all the lines affected by the selection as dirty. Already there is a functon
which perform this task, selclear.

fix PageUp Modifier Mask in config.def.h

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Fixing title setting with the title argument.

Adding xterm behaviour to setting the title.

Thanks Airwave!

Bumping up the xfps so mouse motion won't reap the CPU.

Adding true mouse motion support.

This is a shorter bit handling in MODE_MOUSE.

Add some comments about the other mouse reporting modes.

Implementing mouse focus and all events.

Fixing bad highlighting on first SNAP_WORD multiline select.

Fixing the selection in a single line again.

Thanks p37sitdu@lavabit.com!

Fixing the selection scrolling and the selection naming.

Thanks p37sitdu@lavabit.com!

Lazy font unloading too.

Lazy fontset loading.

Thanks Johannes Hofmann <Johannes.Hofmann@gmx.de>!

Removing an old select() regression.

Allow more complex delimiters for word selections.

Thanks Alexander Rezinsky <alexrez@gmail.com>!

Expand the last line with '\n' in case of overselection.

Thanks Alexander Rezinsky <alexrez@gmail.com>!

Select to the end of row if end of line is reached.

Thanks Alexander Rezinsky <alexrez@gmail.com>!

Better comments for the snapping code.

More stable blinking.

Explaining blinking for the dummies.

Selection snapping is now considering wrapping.

Thanks Alexander Rezinsky <alexrez@gmail.com> for mentioning this!

Add a possibility to modify the string sent by mouse buttons.

Thanks Alexander Rezinsky <alexrez@gmail.com> for the suggestion!

Be more efficient in blinking.

Enable blinking in st.

Fixing the selection handling to allow one char selection.

Thanks Alexander Sedov <alex0player@gmail.com> for suggesting the fix!

Fixing the selection issue in altscreens.

Removed redundant check in draw code.

We're now clearing empty areas with spaces, so there is no point to check
if character contains non-empty string.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Fix selecting clearing and BCE

The commit b78c5085f72 changed the st behaviour enabling BCE capability,
that means erase regions using background color. Problem comes when you
clear a region with a selection, because in this case the real mode of the
Glyph is not the value of term.line[y][x], due in drawregion we had enabled
the ATTR_REVERSE bit.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Now clipping is more clear.

Removing the overdrawing of some fonts.

Yes, rs2 != is2.

There is no 8bit by default and reset 8bit too.

Implementing 8 bit mode for meta.

Adding wrap handling in selection.

Added support for double/triple click+dragging.

Now double-click+dragging automatically snaps both ends to word boundaries
(unless on series of spaces), and triple-click selects whole lines.
As a side effect, snapping now occurs on button press, not button release
like it previously was, but I hope that won't be inconvenient for anyone.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

0.4.1 release.

Making st compile on OpenBSD again.

Selection now handles empty lines less counter-intuitively.

Now, when you are selecting a region, you will get all empty lines that happen
to be in it, including trailing ones. Last line terminator is omitted as it previously
was, though.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Removing trailing whitespace.

Got rid of redundant Glyph state.

Now, newly allocated Glyphs are set to spaces and current cursor colors
with tclearregion() routine.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Removing unneeded comments.

Got rid of code duplication in tnew() and tresize().

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Strip trailing spaces from lines when copying selection.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Enable BCE everywhere.

Fix the geometry handling.

\033 should be used in printf in the FAQ.

Never apply patches of Apple users without shouting at them. The basic rule of
nature is that when you apply Appl users patches without shouting at them that
something will go horribly wrong.

Resize now uses xclear().

Drawing a more visible rectangle as cursor on unfocus.

To have a more visible cursor on unfocused windows this patch makes st draw a
rectangle around the terminal cell.

Thanks Mark Hills <mark@xwax.org> for the suggestion!

Patching while not really woken up.

Minor naming issue fixed.

Making the copy and pasting consistent.

The copying and pasting in the terminald and GUI world is flawed. Due to the
discussion on the mailinglist it seems that sending '\n' is what GUIs expect
and '\r' what terminal applications want. St now implements that behaviour.

Convert FAQ into Markdown, to make it easier to integrate it into http://st.suckless.org/

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Make st work with a plain -e command.

Adopting arg.h with more flexible cmd handling.

Add an option to disable alternative screens.

Updating the TODO file for after 0.4.

Releasing 0.4.

Add the possibility to have default highlight colors.

Thanks to stargrave@stargrave.org for the suggestion!

Adding PgUp + Ctrl.

Thanks stargrave@stargrave.org!

Adding PgUp and PgDown + Ctrl to config.def.h

Thanks stargrave@stargrave.org!

Removing an undefined case. just do regular selections.

Making rectangular selection work again.

People sending me patches against strange revisions and basing on their own
revisions make me having to reapply them. Then such errors appear.

Thanks Alexander Sedov <alex0player@gmail.com> for noticing this.

Pange seems to use ascent + descent instead of height.

Thanks Bobby Powers <bobbypowers@gmail.com> for noticing this!

Making st compile on OS X.

Using strsep and fixing null termination in csiparse.

Thanks for the hint from Alexander Sedov <alex0player@gmail.com>!

Changing the way how paste is handled, just for the nano people.

Fixing a bug while parsing empty arguments in csiparse.

Fixing bugs in the strtol and strtok_r replacements.

Thanks "Roberto E. Vargas Caballero" <k0ga@shike2.com> for the comments!

Using strtok_r for the string parsing.

Using strtol with overflow checking.

Add insert for the primary clipboard to MOD + Shift + Ins.

Thanks Mantas Mikulėnas <grawity@gmail.com> for the patch!

Removing dbe and introducing umlauts to titles.

Thanks Alexander Sedov <alex0player@gmail.com> for the title patch!

Add umlaut support for title change.

Thanks Alexander Sedov <alex0player@gmail.com>!

Replace parse_int with atoi().

Added basic xterm-ish palette swap support.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Implement rectangular mouse selection.

Thanks Alexander Sedov <alex0player@gmail.com>!

ensure that the italic font has the same weight as the normal font

The specified font[] pattern need not have a medium weight. It could be
specified as a number too or have a different weight other than medium.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Style inquisition.

Fixing the reverse mode of st colors.

Thanks Alexander Sedov <alex0player@gmail.com> for finding this!

Adding a way to ignore bits in the state.

Style inquisition.

The refresh rate for the action needs to be high too.

Changing the fps to something reasonable high.

Doing it like the new run() was proposed.

Adding a more efficient drawing code.

Thanks Mihail Zenkov <mihail.zenkov@gmail.com> for giving the hint!

Tmux wants this to be mutually exclusive.

Thanks Egmont Koblinger <egmont@gmail.com> for noticing this!

Adding mor explict font patterns.

Making st not activate the cursor in case of Mod + k in dwm.

Thanks Jens Nyberg <jens.nyberg@gmail.com>!

Setting the surrounding border to defaultbg.

Thanks Stephen Caraher <moskvax@gmail.com>!

Removing some debug messages.

Fixing the menus in mc.

Fixing the black remaining lines in mc and dialog.

This also applies some style fixes and handles some old blink codes.

Adding extended mouse reporting in st.

Thanks Egmont Koblinger <egmont@gmail.com>!

Removing the debug messages again.

Fixing the clipboard copying to st itself.

St is in 2013 now.

Removing BCE from the TODO list.

Implementing Back Color Erase (BCE).

Make line drawing work again.

Yes, xft should be on the buffer. Thanks Mihail Zenkov.

Trying out the double buffering without dbe.

Dbe is not required anymore.

Adding the FAQ entry for zsh.

Thanks Roberto E. Vargas Caballero! You were committing this patch against the
wrong version of the FAQ, so I had to rewrite it.

The title can now be set with UTF-8 characters.

Thanks Mihail Zenkov <mihail.zenkov@gmail.com>!

Adding a nasty resize bug. Maybe it can be fixed.

Removing the .hgtags file. Thanks ilf.

Standout mode has changed. Thanks p37sitdu@lavabit.com!

A different double buffering strategy so the background is default set.

Standout is now reverse. This makes bsd-games work in st.

Adding an FAQ entry for the keypad handling.

Thanks "Roberto E. Vargas Caballero" <k0ga@shike2.com>!

Synchronizing the FAQ of the website and the repository.

Damn, my fault. The cache should have at least some entries.

Applying the changes to the docs; by Peter Hartman.

Making the fontconfig and freetype paths portable in config.mk.

A fix for the XopenIM() errors.

Increasing font cache for speeding up UTF8 demos.

Removing the warning about extents.

Fixing the font unloading in case of zoom.

Speeding up the drawing, then all characters are known.

Adding fallback support to st.

Fixing a compile error.

Fixing a off-by-one error in the penultimate row drawing.

Fixing a precedence problem. Thanks tridactyla!

Checking for the lower X11 special keys too. Thanks Benjamin R. Haskell!

Adding error checks for XCreateIC and XOpenIM.

Be careful about mar77i's patches.

Fixing the nasty selection bug. Thanks p37sitdu@lavabit.com!

Applying the patch of mar771 right.

Applying the change of the Del key assingment. Thanks Martti Kühne!

Add support for End key

    - Shift + End : Delete until end of line.
    - Control + End : Delete until end of screen.

When  the End  key is  pressed  without any  modifier is  not generated  the
correct sequence for it  (going to the end of the  screen), because the size
of the  terminal is not known,  so it is  not possible write a  sequence for
this purpouse.
---
 config.def.h |   10 ++++++++--
 st.info      |    2 ++
 2 files changed, 10 insertions(+), 2 deletions(-)

Add support for Supr key

    Del : Delete character under cursor.
    Shift + Del : Delete the line under cursor.
    Ctrl + Del: Delete the full screen.
---
 config.def.h |   16 ++++++++++++----
 st.info      |    2 ++
 2 files changed, 14 insertions(+), 4 deletions(-)

Add support for insert key

Insert key stands for a key which allows enter or leaves insert mode, so let
it generates the correct sequence to change between these modes:

   - Insert: Enter in insert mode.
   - Shift + Insert: Leave insert mode (replace mode).
   - Control + Insert: Insert a blank line.

Like Shift + Insert also paste text, if a user want this feature be full
functional he has to modify such shortcut.
---
 config.def.h |   16 ++++++++++++----
 st.info      |    3 +++
 2 files changed, 15 insertions(+), 4 deletions(-)

Fix value of ka1 terminfo capability

ka1 stands for upper left of keypad, so the correct value is the one
generated by Home in application keypad mode.
---
 st.info |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Add a notice in the config.def.h file how to obtain the syntax for

xft/fontcache.

The style inquisition was here.

Add key for toogling numlock handling

Keypad will generate keycodes when keypad application mode is enabled. It
can cause problems with some programs like vi, which operates in such
mode.

This patch change by default don't generate the keycodes never, but this
behaviour can be changed using the combination Alt + NumLock.
---
 config.def.h |   34 ++++++++++++++++++----------------
 st.c         |   17 +++++++++++++++--
 2 files changed, 33 insertions(+), 18 deletions(-)

Fixing the calculation of the base tty pixel size.

Restoring the Alt + Backspace functionality. Thanks Brandon Invergo!

Add application cursor sequences for Home

The commit 'Fixing some key issues with mc' fix the problem where mc didn't
recognize home key because the generated code and the terminfo entry were
different (terminfo khome = \E[1~ but generates \033[H).

Home key in ansi mode should generate the sequence CUP (\033[H) to 0,0 (home
position), but it is also interesting generate a application code which
identifies the key. Real vt520 only generates the ansi sequence CUP, linux
console generates only the application code \033[1~, xterm generates CUP in
ansi mode and \033OH in cursor application mode, rxvt only generates the
application code \033[7~.

This patch sets CUP in ansi mode and \033[1~ in cursor application mode, so
it can be used in both modes and the application mode value is similar to
near values (insert = \033[2~, Prior = \033[5~, Next = \033[6~, End =
\033[4~, Supr = \033[3).
---
 config.def.h |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Fixing some key issues with mc. Thanks nsz!

Getbuttoninfo is always used the same and just a helper function. Shrinking it

a bit. Thanks nsz!

Fix speech error in comment

---
 st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Remove unused fields in cursor_movement

---
 st.c |    4 ----
 1 file changed, 4 deletions(-)

Removing my debug fprintf().

Optimizing the key lookup to the X11 function key. It is still possible to

remap other keys.

Making all function keys accessible.

Adding support for XK_F35.

Fix Shift + Insert shortcut

This patch apply the same code for shortcuts that it is used now for defined
keys. So it is possible use now XK_NO_MOD and XK_ANY_MOD for defining shortcuts.
---
 st.c |   35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

Changing the TODO to the current state.

Fixing the return and keypad enter sent characters. Terminals produce \r. And

some minor style changes.

Import the patch of Eckehard Berns to add insert mode. Thanks!

The crlf mode was reversed.

Fixing Return in non-crlf mode.

Use XK_ANY_MOD instead of XK_NO_MOD in key definition

Usually terminal emulators don't generate any sequence for a combination
they don't have registered, for example Shift + Next, but st behavior
previous to the keyboard patch generates the sequence without the modifier,
in this example Next. This patch uses the XK_ANY_MOD in order to get this
same behaviour.
---
 config.def.h |  114 ++++++++++++++++++++++++++++++----------------------------
 1 file changed, 59 insertions(+), 55 deletions(-)

Fix XK_NO_MOD and XK_ANY_MOD behavior

XK_NO_MOD match a key without modifiers and XK_ANY_MOD match a key does not
matter what modifiers are pressed to. Like they are mask the best value for
XK_ANY_MOD is all the bits to 1, so the and with any state will be equal to
the state. This also imply that is necessary check the case for XK_NO_MOD
(no modifiers at all) with some modifier in state, and the inverse
(some mask different to XK_ANY_MOD or XK_NO_MOD and no modifiers in state).
---
 st.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Fix tab key

When Shift + Tab is pressed X server send the event XK_ISO_Left_Tab with
ShiftMask, so this is the entry we need in config.def.h

This patch also revert the previous patch for this issue because it breaks
the keyboard.
---
 config.def.h |    2 +-
 st.c         |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Fixing the tab key, when no mask is wanted.

The style inquisition was here again.

Add missed key definitions

This patch adds the keys for the keypad (in both modes, application mode or
ansi mode) and function keys. It uses the same convention than xterm and
instead of using the XK_Fxx values it generates them using F1-F12 and
modifiers. For example:

   F1 -> ^[OP
   F1 + Shift = F13 -> ^[[1;2P
   F1 + Control = F25 -> ^[[1;5P
   F1 + Mod2 = F37 -> ^[[1;6P
   F1 + Mod1 = F49 -> ^[[1;3P
   F1 + Mod3 = F61 -> ^[[1;4P

It is also important notice than the terminfo capability kIC (shifted insert
key) only can be generated using the keypad keyboard, because the shorcut
for selection paste is using the same combination.

After this path the number of elements in the Key array becomes high, and
maybe a sequencial search is not enough efficient now.
---
 TODO         |    6 +---
 config.def.h |  102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 st.info      |   70 ++++++++++++++++++++++++++++++++++++++--
 3 files changed, 169 insertions(+), 9 deletions(-)

Add control and meta combinations for arrow keys

Since there isn't any terminfo capability for control and meta modifiers for
arrows keys it is necessary use the same that almost terminal emulators use,
because there are a lot of programs which have these codes hardcoded.

This cause also that shift combinations are also changed, but in this case
this is not a problem since there are terminfo capabilities for them. After
this patch shift-up and shift-down continue not working in emacs with
TERM=st, but they work with TERM=xterm, so it is possible some other changes
are necessary in the terminfo entry.
---
 config.def.h |   16 ++++++++++++----
 st.info      |    8 ++++----
 2 files changed, 16 insertions(+), 8 deletions(-)

Fix arrow keys terminfo capabilities

Usually the arrow keys generate the ANSI sequence which terminal will
understand like a movement, so it is not necessary any dealing for them, the
program can not know if the sequence is generate for a echo key or directly
from the program. If you need really know if the key was pressed then you
need activate the keypad mode where the keys will generate a special code
for each keypad key.

The terminfo capabilities kcub1, kcud1, kcuf1 and kcuu1 are used for this
keypad code, not for the sequence generate in the ansi mode.
---
 st.info |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Remove hardcoded keys form kpress

Some keys were in the Key array while others were hardcoded in
kpress().This cause some problems with some keys which can generate more of
one string based in the configuration of the terminal.
---
 config.def.h |   70 ++++++++++++++++++++++++++++++++++++++++-----------------
 st.c         |   71 +++++++++++++++++++++++++---------------------------------
 2 files changed, 79 insertions(+), 62 deletions(-)

Move Shift + Insert to shortcut

Shift + Insert is used like a hot key for paste the selection, so it is more
logical move it to shortcut array instead of having special code for it.
---
 config.def.h |    1 +
 st.c         |   13 +++----------
 2 files changed, 4 insertions(+), 10 deletions(-)

Fix keypad mode and cursor mode

Keypad mode is used for detecting when keys in the auxiliary keypad are
pressed, while cursor mode is used for detecting when a cursor is pressed,
but they are different modes.

St was mixing both modes and DECPAM and DECPNM modified the cursor mode, and
this was incorrect.
---
 st.c    |    5 +++--
 st.info |    4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

Add SRM sequence

This sequence enable/disable the local echo.
---
 st.c |   76 ++++++++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 56 insertions(+), 20 deletions(-)

Gc is not used anymore.

Removing some xft naming cruft.

Moving the alt declaration to the beginning of the function.

Move unsupported sequences to ignored.

These sequences will be never implemented and in this moment they are
generating a lot of noise.
---
 st.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

Ignore DECARM sequence

DECARM modify the auto repeat settings in the keyboard, and since we can not
modify this setting in the Xserver the best solution is only ignore it.
---
 st.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Fix VPR sequence

VPR stands for Move cursor down a number of rows, and the code was moving
the cursor up instead of moving it down.
---
 st.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Add DECOM sequence

DECOM sequence allows to the user defines a new home position. The home
position is used as base for all the movement commands except HVP and
VPA. It is important notice than DECSLM moves cursor to absolute position
0,0.
---
 st.c |   33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

Save cursor position in terminal reset

After terminal reset saved terminal position is reset to 0, allowing know
where cursor will go in next restore cursor operation.
---
 st.c |    2 ++
 1 file changed, 2 insertions(+)

Clarify some or exclusive expressions

Since relational expresions are always evaluated to 0 or 1, we can use
bitwise xor operator instead of using more complex boolean expressions.
---
 st.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

Fix bug restoring cursor position

Sequences like DECSC, DECRC, ESC [?1047l or ESC [?1047h save and restore
cursor attributes, than taken from vt100 manual are:

       Save Cursor (DECSC) ESC   7
       ===========================
       Saves the following in terminal memory.

      - cursor position
      - graphic rendition
      - character set shift state
      - state of wrap flag
      - state of origin mode

      Restore Cursor (DECRC) ESC 8
      ===========================
      Restores the states described for (DECSC) above. If none of these
      characteristics were saved, the cursor moves to home position; origin
      mode is reset; no character attributes are assigned; and the default
      character set mapping is established.

This implies that hide attribute of the cursor should not be saved/restored
in these sequences. The best way to fix this problem is moving hide
attribute into the terminal mode, instead of having it in the cursor state.
---
 st.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Adding scrollwheel support. Thanks Brandon Invergo!

Changing the license to MIT/X.

Fixing meta+return. Thanks Szabolcs Nagy!

Removing the debugging for the last fix too.

Fixing a resize bug, if a smaller amount than the lineheight is resized.

Thanks c00kiemon5ter!

Fixing bold fonts in reverse mode.

Now italic and bold works.

Fixing an out-of-bound bug in the selection code. Thanks Szabolczs Nagy!

Fixing the italic-bold font check. Thanks nsz.

Added tag 0.3 for changeset 9d54ce4daf34

0.3 release.

Make it possible to use the corefont font description too. It is not very

useful, but easy to implement.

Moving to the dwm config.h variable usage.

Adding a FAQ to reference utmp(1).

Cleaning up the TODO file.

Removing the now senseless comment in config.def.h. Thanks to bnwe!

Applying the patch of the little girl <yui@blekksprut.net> to make cjk input

possible. Thanks!

Applying the tab expansion patch from koga.

Adding a more flexible fontstring handling, shortcuts and a zoom function.

Applying the patch of Roberto Caballero to set WINDOWID and all the pwuid()

variables. Thanks! xinit() and ttynew() had to be switched in their
call-appearance. Otherwise xw.win is not set.

Applying the patch of Rafa Garcia Gallega <rafael.garcia.gallego@gmail.com> to

not emulate the vt100 behaviour of selecting all whitespaces. Thanks!

Add error control to iofile

write can write less bytes than we request, so it is necessary check the
return value, in case of error print a message and don't continnue writing
in the file.
---
 st.c |   39 ++++++++++++++++++++++++++++++---------
 1 file changed, 30 insertions(+), 9 deletions(-)

Well, I was confused. Damn state exams. Instead of discussing this shit I

should really learn opthalmology instead. :O

If there is really someone without SHELL set, help him/her.

Add DEC alignment test

This sequence was used by DEC personal in to for verifying the screen adjust
of terminals. It is the unique test sequence implemented by all the
emulators, and I think it is because they want be conforms with vttest which
uses this sequence in some tests.
---
 st.c |   31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

Avoid initialization of vt100_0 in each call to tsetchar

If vt100_0 is a automatic variable then it is initializated in each call to
tsetchar, but if the variable is static it is initializated only in compile
time.
---
 st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Fix Identification sequences

Do not send NUL character in the identification (use (sizeof(VT102ID) - 1),
and finish  the sequence once you execute it.
---
 st.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Add DA and DECID sequences

These sequences are used by the host in order to can detect which kind of
terminal is connected. St will answer like a vt102 terminal with this patch.
---
 st.c |    9 +++++++++
 1 file changed, 9 insertions(+)

Fixing a typo.

Fixing a off-by-one error in the new border clearing code.

Print control codes only in graphic mode

Non handled codes must be ignored, except in graphic mode. Also STR
sequences have higher priority than control codes, so they must be handled
before of them.
---
 st.c |  160 ++++++++++++++++++++++++++++++++++++------------------------------
 1 file changed, 87 insertions(+), 73 deletions(-)

Add SI and SO control codes

SI and SO allows change the G0 and G1 selection. This implementation is not
full vt100 compatible, but it is complatible with linux virtual terminal
implementation. For full vt100 compatibility we need remake a lot of stuff
relate to the different charmaps.
---
 st.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Add SUB and CAN control codes

These control codes reset any escape sequence already initialised.
---
 st.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Add documentation to control codes

Add the documentation from the vt100 manual programmer:

Control 	Octal      Action Taken
Character	Code
-------------------------------------------
NUL		000	Ignored on input (not stored in input buffer;
			see full duplex protocol).
ENQ		005	Transmit answerback message.
BEL		007	Sound bell tone from keyboard.
BS		010	Move the cursor to the left one character position,
			unless it is at the left margin,
			in which case no action occurs.
HT		011	Move the cursor to the next tab stop,
			or to the right margin if no further tab stops
			are present on the line.
LF		012	This code causes a line feed or
			a new line operation. (See new line mode).
VT		013	Interpreted as LF.
FF		014	Interpreted as LF.
CR		015	Move cursor to the left margin on the current line.
SO		016	Invoke G1 character set, as designated by SCS
			control sequence.
SI		017	Select G0 character set, as selected by ESC ( sequence.
XON		021	Causes terminal to resume transmission.
XOFF		023	Causes terminal to stop transmitted all codes
			except XOFF and XON.
CAN		030	If sent during a control sequence, the sequence is
			immediately terminated and not executed. It also causes
			the error character to be displayed.
SUB		032	Interpreted as CAN.
ESC		033	Invokes a control sequence.
DEL		177	Ignored on input (not stored in input buffer).
--------------------------------------------
---
 st.c |   28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

Forgot to remove the xclearborders() definition from the last commit.

Removing the xclearborders() hack. St now cleans up the parts of the border,

if something needs to be drawn close to it.

The style inquisition was here. Yes, making it a unified style. The last

infidels will be squashed too!

Adding the patch of David Dufberg Töttrup to implement WM_DELETE_WINDOW. Thank you!

Fixing the brightening on bold. For the 256 colors and greyscale I assumed a

reasonable solution.

Turning on antialias by default really makes it more unreadable. Maybe if once

the majority has bigger screens, this can be turned on by default again.
Thanks pancake, for the hint.

When the drawing behaviour was changed underline was not corrected.

Thanks to Peter A. Shevtsov!

This adds the fontcache dependency to try something out. Additionally the

invert mode now works as expected. In the config.def.h autohint is set to
false, so the fonts are drawn correctly, without any overlapping.

Thanks to c00kiemon5ter. Not changing bold to bright colors seems to be the

right choice.

Removing the now obsolete definitions from the config.def.h file.

This changes -f to be the parameter for the font. Now -f is -o.

The parameters were reordered according to the alphabet too.

Remove the cruft of the user to have to define the different font styles.

We need all the colors to be available, so die() on some not available.

This is a new opportunity to see if X11 somewhen handled colors in a strange
way.

All xcolors are not Xft colors and the clearing of the borders has been

optimized. There is a speedup when resizing windows.

Vt escape sequences allow escape sequences in escape sequences and escape

sequences, so we have to support escape sequences in escape sequences that
escape sequences in escape sequences – setting a title won't notify you
anymore.

Allow control characters inside escape sequences

Taken from vt100 manual programmer:

	Control characters (codes \0 to \37 inclusive) are specifically
	excluded from the control sequence syntax, but may be embedded
	within a control sequence. Embedded control characters are executed
	as soon as they are encountered by the VT100. The processing of the
	control sequence then continues with the next character received.
---
 st.c |   68 +++++++++++++++++++++++++++++++++---------------------------------
 1 file changed, 34 insertions(+), 34 deletions(-)

Ignore all control characters not handled

Taken from vt100 programmer manual:

	Control characters have values of \000 - \037, and \177. The control
	characters recognized by the VT100 are shown in Table 3-10. All
	other control codes cause no action to be taken.

We have to take attention when we are using alternate charset, because in
this cases they are not used as control characters.
---
 st.c |   20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

Switching to Liberation Mono as default solely because of line drawing. A next

patch to fix the font symbols in all fonts should make it easier to choose a
better font.

Implementing line drawing right.

A reset should reset the line drawing too.

Enabling enacs and adding compatibility to xterm and urxvt for alternative

charsets.

Fix bug in tputc writing to io file

If -f options is enabled then tputc() writes all the data to a file. Actual
code assumes that all the strings in 'c' parameters have always 1 byte
length, but this is not always true, because due to utf-8 encoding some
characters can have a diferent length. So it is necessary pass string length
to tputc in order it can call to write() correctly.
---
 st.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Changing the default font to DejaVu Sans Mono, which is more appealing and

activating antialiasing.

The xinit() call needs to be behind all the tty init, otherwise all the

allocated structures are wrong. The xclear() is now done on purpose. Please
keep X11 calls out of the way of pure tty-related calls.

Adding a TODO for xft fallback.

Add some documentetion to tsetmode

The names of the terminal modes supported by vt102 are (taken from the VT220
programmer reference manual):

Table 4-7 ANSI-Standardized Modes
Name  Mnemonic		    Parameter (Ps)
Error (ignored)		    -         0 (3/0)
Keyboard action		    KAM	      2 (3/2)
Insert/replace		    IRM	      4 (3/4)
Send/receive		    SRM	      12 (3/1 3/2)
Line feed/new line	    LNM       20 (3/2 3/0)

Table 4-8 ANSI-Compatible DEC Private Modes
Name  Mnemonic		  Parameter (Ps)
Error (ignored)		  -	    0 (3/0)
Cursor key		  DECCKM    1 (3/1)
ANSI/VT52		  DECANM    2 (3/2)
Column			  DECCOLM   3 (3/3)
Scroll			  DECSCLM   4 (3/4)
Screen			  DECSCNM   5 (3/5)
Origin			  DECOM	    6 (3/6)
Auto wrap		  DECAWM    7 (3/7)
Auto repeat		  DECARM    8 (3/8)
Printer form feed	  DECPFF    18 (3/1 3/8)
Printer extent		  DECPEX    19 (3/1 3/9)
Text cursor enable	  DECTCEM   25 (3/2 3/5)
National replacement character sets DECNRCM 42 (3/4 3/2)

This patch adds a comment for each one of these sequences.
---
 st.c |   26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

Fix LNM sequence

LNM sequence is a standard ANSI mode, not a DEC private mode.
---
 st.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Add KAM sequence

This sequence lock/unlock the keyboard ignoring all the key pressing events
from X server.
---
 st.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Remove unused parameters in ttyresize

---
 st.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Clear X window in tsetreset()

tsetreset() is called when it is necessary a full initialization of the
terminal, so it also should clean the full X window and not only the
terminal content. It is necessary change the order of the
initialization in main(), and put xinit before of tnew(), because tnew()
calls to tsetreset(), and  this can cause a call to xreset() with
incorrect values.
---
 st.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Merging xft and current st heads.

Initial Xft support for st. More to follow.

config.def.h: typo in comment.

LEGACY: typo.

Redrawing is fixed.

Fixing the redrawing patch of k0ga, so it's using xclear() in redraw() too.

Clean windows display after resizing

Some times the size after a resizing is not an exact multiply of a number of
characters, so redrawn the screen using the lines and columns of the neww
size can cause that some old graphics keep in the screen. Solution is clean
all the windows with the background color.
---
 st.c |    3 +++
 1 file changed, 3 insertions(+)

Copy non set positions as spaces

st selection don't insert in the selection position whose value is not
set. This is correct for the positions in the end of the line, but cause
some problems in the beginning. For example echo -e 'a\tb' will print in the
screen:

a	b

but after selecting and copying in some place you get:

ab

because positions from 1 to 7 don't have any value. This patch deals all
positions without value as blank (even at the end of the line).
---
 st.c |   17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

Add newline in error messages

---
 st.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Add xcalloc wrapper

malloc and realloc are called through xmalloc and xrealloc, so calloc should
be called through xcalloc.
---
 st.c |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

Applying a shortening proposal for the run loop of k0ga.

Remove call to draw in resize

In previous commits draw was removed from all the X events, but I forgot do
it in resize.
---
 st.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Adding some more fields to the manpage, like authors, license etc.

Remove some solved issues and add some new.

Preliminary solution to the stuttering problem.

Fix selection bug

After the commit named "Remove timeout in the main loop", selection is not
working in the proper way. After selecting something, press mouse button in
a line outside of selection causes an incorrect highlight. This patch fix
the problem forcing a draw after the press event, but this is only a fast
hack. Real solution means rewriting selection code.
---
 st.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Render only once in each main loop iteration

draw() runs over all lines of the screen and renders only the dirty lines,
this avoids render lines which are not modified since last draw() call. In
this moment the main loop is something like:

     - Wait something to read from file descriptors
     - Read from pseudo tty
     - Call draw() for rending
     - Read X events

This cause the problem that all the X events that have to update the screen
have to call draw() (because draw() is called before of X events handling),
so you can have multiples renderings in only one iteration, that will waste
a lot of resources.

This patch change the main loop to:

     - Wait something to read from file descriptors
     - Read from pseudo tty
     - Read X events
     - Call draw() for rending

So X events don't have to worry about rendering, because draw() is called
after them.

The only place where draw is called outside of the main loop is in redraw(),
but it is necessary for getting a good tput flash.
---
 st.c |   29 ++++++-----------------------
 1 file changed, 6 insertions(+), 23 deletions(-)

Remove timeout in the main loop

The main loop waits until there is some data to read in file descriptors of
the X server or the pseudo tty. But it uses a timeout in select(), which
causes that st awake each 20 ms, even it doesn't have something to do. This
patch removes this problem removing the timeout, which is not needed.
---
 TODO |    1 -
 st.c |   27 +++------------------------
 2 files changed, 3 insertions(+), 25 deletions(-)

Call XSync in redraw

It is necessary call to XSync if you want a good tput flash, because in
other way you can not be sure that white screen will be shown.
---
 st.c |    1 +
 1 file changed, 1 insertion(+)

Call XdbeQueryExtension before of calling any Xdbe function

XdbeQueryExtension() tells to the caller if the Xdbe extension is present in
the X server, so it should be called for sanity. But like is said in
XdbeQueryExtension(3):

	No other Xdbe functions may be called before this function.  If a
	client violates this rule, the effects of all subsequent Xdbe calls
	that it makes are undefined.

it is mandatory call this function.
---
 st.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Implementing italic-bold. This will require an increase of the avgWdth.

Ignore NUL character as a padding character. Telnet may use this. Patch of

Roberto Vargas.

Importing the patch of Roberto Vargas to inherit signal handlers.

Reset window title on terminal reset too.

Adding a statemant on legacy support.

Adding another bold off sequence.

Remove buffering to fileio instead of calling fflush

By default text files are line buffered, and this means that -f option will
not write the line until a \n is printed. This is not very useful for
debugging, so a call to fflush was added. This patch substitute this call
(which will be done by each character painted) by the full remove of the
buffering in the file.
---
 st.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

Add xmalloc and xrealloc wrappers

If malloc  or realloc fail they return NULL. Theorically this condition
should be tested in the code, but it's a strange condition today (basically
if this is hapenning thenyou have a big problem), and even Linux never returns
NULL in the default configuration (only if the process don't have room in
the space address, something a bit impossible in the case of st). But stis
enough small for being executed in low resources computers where this can be
a real problem. So the easy way is creating a wrappers function for them and
call to die in case of error.
---
 st.c |   44 +++++++++++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 13 deletions(-)

Make nyancat(1) work. Important release feature!

Add preliminary blink stubs. Real implementation is still missing.

Add another obscure way to set a window title.

Fixing the too small window in non-tiling window managers.

Making the selection work again.

Allow simpler stdout -f handling.

Adding instantenous debug output and fixing italic with a reset.

Adding the removal of the timeouts to the TODO.

Removing masks for unhandled enter and leaving events.

If the selection is cleared, draw() and do it on button press too.

Unhighlight selection when selection is owner by other window

st marks the active selection using reverse colors in the box selection, but
once that another window becomes owner of the selection, it is very
confusing that st keeps highlight the old selection. Usually terminal
emulators remove the highlight when it is not valid anymore.

X sends a SelectionClear event in this situation, so we only have to add a
callback which unhighlight the selectin box.
---
 st.c |    9 +++++++++
 1 file changed, 9 insertions(+)

Forcing the parameter limit to xcopy() and selpaste(). Thanks to Rob Pilling.

Removing unneeded arguments to copy(). Thanks to Andrew Hills.

Implement italic font support.

Add to TODO to make function keys work.

Enable keypad set and unset commands.

Disable BCE again.

Removing the resize issue from the TODO file.

Fixing the resizing behaviour.

Forgot one line. It's late.

Cleaning up the fixed window size and the resizing of clients.

Another thing for TODO – resize.

Updating the TODO and enabling BCE.

CUP == HVP; CHA == HPA;

Unifying the old style.

Check alternative screen before drawing box selection

Some programs use the alternative screen (vi, less, ...), whose
content is different of the main screen. If you select text in one of
the screen, you don't wait the box selection is painted in the other
screen, so it is necessary check if the selection was done in the same
screen we are going to paint. Before to this commit, you could do
something like:

	$ LESS="" ls | less
	(select some code)
	q

and selection box remains drawing in the main screen, but the content
of selection keeps text of the alternate screen.
---
 st.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Add newline to stderr message

---
 st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Fixing the border pixel when there is a negative position.

Add -g geometry to st and the manpage.

Fixing a type in in2 in the st.info.

Force redisplay of all lines in DECSCNM

When it is called DECSCNM all lines become dirty, because it is necessary
redraw all lines for getting the new colors. It is easy see the problem
running 'echo ^[[?5h'.

In order to get a correct flash when running tput flash is necessary wait
after DECSCNM, until the changes are displayed, because in other case the
switch between reverse on/reverse off will be too much fast and nothing will
happen.
---
 st.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

Add write I/O to file

This is a theorical feature listed in http://st.suckless.org/goals. All the
input/output of the terminal will be written to a file, which can be very
useful for debugging, and also allow interconnect st to other process
through named pipes.
---
 st.1 |    6 ++++++
 st.c |   14 +++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

Patch from Roberto Vargas. »Add initialization strings in terminfo«


Taken from the description:

When tput init is executed the list of task performed are (taken from
terminfo(5)):

              run the program
                     iprog

              output is1 is2

              set the margins using
                     mgc, smgl and smgr

              set tabs using
                     tbc and hts

              print the file
                     if

              and finally
                     output is3.

When reset is executed, a more stronger initialization process is performed,
so the terminal can return from an unknown state. rs1, rs2 and rs3 are used
in this case instead of
using is1, is2 and is3.

This patch makes is2 = rs2, resets insert mode and set normal keypad
mode. For rs1 it performs a full initilization using ^[c.

Add standout mode.

Cleaning up lonely tabs.

Make it more obvious where the wrong attribute is used.

Enable multiple arguments in SM and RM

SM and RM can receive multiple parameters, but the code only was accepting
only one. This patch join the code of set and reset modes (SM and RM) in a
common function and uses a loop which deals with all the arguments of the
sequence. This patch improves xterm and vt100 compability.
---
 st.c |  180 ++++++++++++++++++++++++++++--------------------------------------
 1 file changed, 76 insertions(+), 104 deletions(-)

Add vpa terminfo capability

---
 st.info |    2 ++
 1 file changed, 2 insertions(+)

Silencing the compiler but keeping strparse.

This will really be needed when there is a full 256 color support.

Applying the CBT patch of Roberto Vargas. Thanks.

Never trust terminfo fata morganas. And adding other xterm compatibility.

Add OSC, DSC, PM, APC and settitle.

Adding setb and setf and a comment about terminfo installation.

Add CHT sequence

This sequence performs "Cursor Forward Tabulation <n> tab stops", which
although is not present in vt100 or vt102, xterm accepts it.
---
 st.c |    5 +++++
 1 file changed, 5 insertions(+)

Applying the patches of k0ga and changing the LICENSE file in the appropriate

way.

Add TBC sequence

This sequence clears tab stops in the terminal. If the argument is not present
or is zero, then removes the tab stop of the current horizontal position. If
the argument is 3 then removes all the tab stops of the terminal. It was
necessary modify the terminfo entry tbc, because it has \E[2g instead of the
correct \E[3g.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
---
 st.c    |   12 ++++++++++++
 st.info |    2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

Add HTS sequence

This sequence adds a new tab stop in the current horizontal position. This
means that tputtab must be look for the next tab stop in the tabs array
instead of using a hard coded value offset. Also, CHT sequence XXX message
is removed because it is not a vt10x sequence (as far as I know it is a
vt50x sequence), and it is not implemented by linux virtual terminal neither
by xterm.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
---
 st.c |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

Add tabs field into Term struct

Tabs stop are simulated in st using a fixed size of 8, always, without be
worried about sequences changing the tab stops. A user can put a tab stop in
each horizontal position of the screen, so we need at least one flag for
each column of the screen. In the same way as dirty flags is used for the
rows, it is used a bool dinamic array.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
---
 st.c |   22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

apply post-XDBE patch BORDER fix

Implement Xdbe-based double-buffering

update TODO.

cleanup. refactored dirt-related function.

use SHELL as default shell.

revert to "tip" in VERSION.

Added tag 0.2.1 for changeset 108926a0fe61

bump version.

replace fwrite by printf.

rewrite csidump().

clean and name enum definitions.

fix default color overwriten bug.

show dark cursor when unfocused.

document possible configuration.

handle dim/bright colors.

merge

reduce size of each glyph for faster copy.

Added tag 0.2 for changeset 3c2f9f2ab5e4

cosmetic, whitespace, etc.

fix PRINT/DRAW _TIMEOUT and fix redrawing bug.

copy dirty lines to screen, add select() timeout & min time between draw() calls.


* add a timeout value (SELECT_TIMEOUT) of 20ms in the select() call
* wait at least 20ms (DRAW_TIMEOUT) between draw() calls
* only copy dirty lines from the buffer to the screen

what draw() does:
* clears dirty lines in the buffer
* draws the longest same-attributes string of each
  dirty line to the buffer with multiple xdraws() call
* copies the current dirty line from buffer to the screen with a single
  xcopy() call

this changeset makes st run ~10x faster.

fix segfault in selection. (thx Martti Kühne)

merge.

fix selection. (thx Tarmo Heiskanen)

add dirty flag for lines

no palette limit (thx Nick)

simplify version format.

selection is removed or scrolled properly. (thx Rafa Garcia Gallego)

working on old repo, merging recent changesets.

move xembedatom in XWindow struct, add link to xembed specs.

tweak focus to support XEMBED client message and remove focus on EnterNotify. (thx Adrian)

remove dup of default window size.

fix focus state when embed in another window.

fix segfault with mouse selection. (thx anonymous)

add -w option to embed st. (thx nodus cursorius)

applied parts of "anonymous" cleanup patch.

add altscreen escseq alias & caps to terminfo entry. (thx Bert Münnich)

disable mouse highlight when mouse report enabled. (thx Bert Münnich)

reverse video mode. (thx Bert Münnich)

add status bar (window title) to terminfo. (thx Rafa Gallego)

set title before mapping window (thx Kamil Cholewiński).

applied parts of Connor Lane Smith's cleanup patch.

macro cleanup.

add mouse report escape to terminfo entry.

support for x11 xterm mouse reporting

whitespace.

cleanup.

update TODO

selection clicks, shift+arrow keys, fast(er) redraw, key mask in config.h (thx Magnus Leuthner)

update README.

quick bug-fixing 0.1.1 release.

update VERSION.

take BORDER into account for selection. (thx Petr Sabata)

fix utf8 clipboard. (thx Petr Sabata)

Added tag 0.1 for changeset cbc18c988236

add support for utf8 clipboard. fix usage message.

do not add newline to selection text if next line not selected (Nick)

remove debugging printf

apply Nick's patch to fix some error printf to use stderr

fix insert key, terminfo and changed TERM back to st. (thx Ondrej Martinek)

change X cursor to "I".

update terminfo entry.

add new line glitch to terminfo entry.

change -e behaviour and update man page.

-e flag handles arguments.

use memmove() instead of memcpy() in ttyread().

fix and clean ttyread(). buf wasn't static.

merge.

s/xw.dis/xw.dpy/

cleanup & bugfix in xdraws().

clean comment regarding redrawing in bmotion().

Add -c option to override the default window class

some code cleaning.

utf8 support! print text in delicious unicode greatness! all hail to the glorious Damian Okrasa for the patch!

TERM set back to xterm.
changed default fonts.
Note: drawing is now (even) slower.

selection code cleanup.

fixed ED.

redraw if we scroll on resize

get rid of artifacts in border on resize down

copy old pixmap to new on resize

move code into new xresize func, add early exit to resize

\v and \f are have the same behaviour of \n.

added LNM mode; re-organized kpress() to handle it.

redraw optimization.

fixed newline bug.

replaced memset by loops in tresize(); turns out it's faster.

remove useless draw().

applied xclipboard patch. thx David Isaac Wolinsky.

clean button selection code.

compose key patch. thx federico luna.

s/hasfocus/focus/ for consistency.

don't draw if the window is not visible.

use xclear() in draw().

use XCreateWindow(), set gravity bit.

cleaning st.info. added comment in st.c for DECSCNM.

cleaning st.info. fixed cvvis.

set terminal colors to xterm default ones.

removed gfx chars not present in xterm acsc.

fixed start/end sequence of gfx.

undefined gfx doesn't draw \0.

fixed makefile.

added manpage.

resize from the top.

added -e and -t option.

factored code and fixed behaviour of tnewline().

updated TODO.

started to go through st.info and fix things.

capabilities sorted by capname in st.info. copy acsc from xterm.

removed debug code.

fixed IL and DL.

factor and cleanup code.

added correct line drawing characters for default font.

use struct instead of array.

cleanup.

fix segfault when selecting big buffers

shift+insert paste clipboard
honor CFLAGS and LDFLAGS in config.mk

fix build.

add selinit() and renamed clipboard_* to sel*.

move event configuration in xinit().

use one global struct instead of many vars for selection. Cleanup.

use GLYPH_SET to test if a char is set; cleanup.

fix crash for small windows

use unconditional infinite loops

toggle ATTR_REVERSE on selected text, factored some code and fixed Makefile.

fix build

use config.def.h mechanism
add SHELL in config.h

initial implementation of selection and clipboard

fix segfault

added support for alternate screen.

cursor is hid when unfocused.

use predefined OS macro instead of uname.

st should compile on NetBSD.

removed pty.h. minimal system guessing added in config.mk.

removed (visual) bell. '\a' sets the urgency flag if st is unfocused.

removed useless cursor init. and renamed xcursor() to xdrawcursor().

added support for the "magic margin", changed c.hide to c.state, changed xcursor() to use term instead of a

parameter and fixed the cursor position after setting a scrolling region.

removed old VT52 escapes, fixed VT100 IND.

fixed optimized drawing routine and factored some code.

fixed pixmap buffer drawing.

added a XFlush() in xbell().

moved term.hidec in term.c for consistency, put back delay in xbell()

along with duration in config.h, factored some code in tnew()/treset()
and cleaned some code.

merged tscroll() with tscrollup().

st now runs on Linux, OpenBSD and FreeBSD.

removed XINERAMA from config.mk and fixed a segfault when st is

started without a display. (thx Hiltjo Posthuma)

fixed potential bug in IS_SET().

merged tcursorwrap() with tnewline(), added few comments and updated copyright.

cleaned some spaces.

added macro to test flags, removed tmovecursor().

faster resizing.

close master/slave pty in the shell process.

clean \t.

update function prototypes.

fix \b and clean \t.

added F1-12 key, fixed DCH and ICH.

fixed backspace problem, updated terminfo entry and moved TNAME in config.h.

renamed a function.

applied Devin J Pohly's st color info patches, thanks Devin!

fix gcc warnings

fixed background color bug (thx Devin J. Pohly).

added PBaseSize hint and set default title to "st".

rearranged code, resize fixed.

little clean up.

use SHELL environment variable (thx Thomas Adam)

double-buffering added using pixmap (finally).

results in a lot of simplification :
	- no more dirty flags (perf are good enough).
	- no more ugly gfx call in emulation functions.
LINESPACE removed from config.h.
BORDER is now handled correctly.

bold attribute is back.

visibility of the cursor is not saved/loaded anymore.
scrolling up/down is fixed.
added RI and RIS sequences.
fixed cursor drawing bug.

added VT100 NEL.

added VT100 RI.

added VT100 save&load cursor support.

ECH handled correctly.

more escapes & more compability:

cursor keys are handled in kpress according to the Application Mode (DECPAM).
define & enum were renamed.
tcursor() is now tmovecursor() which is more correct.
tcpos() is now tcursor(), as DECSC is also supposed to save attributes.
capnames are indicated whenever possible.

Currently:
alsamixer looks fine, totally usable.
ncmpc is almost ok.
emacs looks like shit.

graphic charset and a few more escapes.

TERM set to xterm by default (which broke a lot of stuff), better escape handling (title), and a little clean up.

drawing is faster but the bold attr is not supported anymore.

Fixed possible segfault by reverting to the key struct (again).

only compile tdump if DEBUG flag is set

we definately need pixmaps for the drawing, currently drawing into the window is painfully slow! much more slower than drawing into a pixmap and mapping that when finished -- several optimisations

reverted back to the old Key struct.

updated "key" to a lookup table.

removed old unused cursor() proto.

fixed the scrolling bug and cleaned some stuff.

dump escseq if not handled.

clean up.

added/removed files, updated Makefile.

made kpress() more flexible, removed st.h, added config.h.

updated TODO.

added sigchld handler, cleaned error checking.

cleaned up (removed space indentation). select/event bug fixed.

fixed a memory leak & segfault in tresize.

updated TODO.

tab moves the cursor instead of inserting spaces.

handle tabulation (still not perfect)

removed truecolor stuff

removed the truecolor stuff

same thing, really fixed this time.

added some error checking in xinit (fixed the segfault caused by a missing font)

Removed unused variable and cleaned some comment.

backport of local changes

add accidentally omitted word

use stdio(3)

add description of std

add prototype for command parsing

correct year of copyright notice

simplify Makefile


Due to consideration of POSIX compliance issues config.mk had
to be removed. Configuration variables can be overridden by
environment variables or specified via command line.

Additionally all pretty-printed messages were removed and
built-in rules are used. This also simplifies and purges
the Makefile.

reunite pty.c with std.c

correct programme name

use errx() for help and version messages

merge with backout head

remove TODO

make ptm and pts static

remove useless variable

remove emallocz()

replace eprint() functions with BSD error functions

simplify flushing

correct buffering

make local functions and variables static

add select(2)-based i/o multiplexing

drop stdio usage


Std requires I/O multiplexing which is very complicated with
stdio, because it provides no transparent buffering.

make st and std separate programmes

add missing header file

assume glibc by default

source utility functions out to util.c

add copyright comment

source getpty() out to pty.c

update TODO

correct function name

remove xinerama flags


The xinerama related variables in config.mk are a relict of
dwm and therefore should be removed.

add missing header file

add parser loop

remove useless variable

replace state with separate variables

terminate error message with newline

correct LENGTH()

simplify control flow

remove debug code

remove stdio slave pty opening

drop support for proprietary UNIX variants


Proprietary UNIX variants like AIX, HP-UX or SCO UNIX
are nowadays rarely used and maintaining compatibility to
non-standard operating systems interfaces is wasteful and
practically useless.

Projects like xterm suffer from backward compatibility to decades-old
UNIX variants and terminal standards. This does not conform to st's
design goals.

slight changes

applied Matthias-Christians changes to std.c

added some new files for the initial rewrite of st from scratch

added new TODO

Backed out changeset d2bb4220fdf3


Ptm and pts are used by pty.c, thus they have to be non-static.

fix warning

Fix unused variable issue and OSX includes

change "op" cap in terminfo entry to xterm/rxvt value.

fix custom key handling.

drawregion() only copies region on screen.

some minor fixes

use typedef'd unsigned type and regular bool type.

Fixed lock up when system time jumps backwards

Signed-off-by: Christoph Lohmann <20h@r-36.net>