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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.
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config.def.h | 114 ++++++++++++++++++++++++++++++----------------------------
1 file changed, 59 insertions(+), 55 deletions(-)
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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).
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st.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
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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.
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config.def.h | 2 +-
st.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
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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.
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TODO | 6 +---
config.def.h | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
st.info | 70 ++++++++++++++++++++++++++++++++++++++--
3 files changed, 169 insertions(+), 9 deletions(-)
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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.
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config.def.h | 16 ++++++++++++----
st.info | 8 ++++----
2 files changed, 16 insertions(+), 8 deletions(-)
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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.
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st.info | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
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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.
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config.def.h | 70 ++++++++++++++++++++++++++++++++++++++++-----------------
st.c | 71 +++++++++++++++++++++++++---------------------------------
2 files changed, 79 insertions(+), 62 deletions(-)
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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.
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config.def.h | 1 +
st.c | 13 +++----------
2 files changed, 4 insertions(+), 10 deletions(-)
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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.
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st.c | 5 +++--
st.info | 4 ++--
2 files changed, 5 insertions(+), 4 deletions(-)
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This sequence enable/disable the local echo.
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st.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++------------------
1 file changed, 56 insertions(+), 20 deletions(-)
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These sequences will be never implemented and in this moment they are
generating a lot of noise.
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st.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
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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.
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st.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
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VPR stands for Move cursor down a number of rows, and the code was moving
the cursor up instead of moving it down.
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st.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
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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.
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st.c | 33 ++++++++++++++++++++++++++-------
1 file changed, 26 insertions(+), 7 deletions(-)
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After terminal reset saved terminal position is reset to 0, allowing know
where cursor will go in next restore cursor operation.
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st.c | 2 ++
1 file changed, 2 insertions(+)
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Since relational expresions are always evaluated to 0 or 1, we can use
bitwise xor operator instead of using more complex boolean expressions.
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st.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
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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.
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st.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
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Thanks c00kiemon5ter!
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useful, but easy to implement.
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possible. Thanks!
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variables. Thanks! xinit() and ttynew() had to be switched in their
call-appearance. Otherwise xw.win is not set.
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not emulate the vt100 behaviour of selecting all whitespaces. Thanks!
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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.
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st.c | 39 ++++++++++++++++++++++++++++++---------
1 file changed, 30 insertions(+), 9 deletions(-)
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should really learn opthalmology instead. :O
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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.
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st.c | 31 +++++++++++++++++++++++--------
1 file changed, 23 insertions(+), 8 deletions(-)
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