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52 commits

Author SHA1 Message Date
Nico Weber
ce95628b7f Unicode: Try s/codepoint/code_point/g again 
This time, without trailing 's'. Ran:

    git grep -l 'codepoint' | xargs sed -ie 's/codepoint/code_point/g
 2020-08-05 22:33:42 +02:00
Nico Weber
19ac1f6368 Revert "Unicode: s/codepoint/code_point/g" 
This reverts commit ea9ac3155d.
It replaced "codepoint" with "code_points", not "code_point".
 2020-08-05 22:33:42 +02:00
Andreas Kling
ea9ac3155d Unicode: s/codepoint/code_point/g 
Unicode calls them "code points" so let's follow their style.
 2020-08-03 19:06:41 +02:00
Andreas Kling
0c4b0c0312 Terminal+LibVT: Add "clear including history" action (Ctrl+Shift+K) :^) 
Sometimes you just want to get rid of all your scrollback history in
the terminal, and now there's a way to do that.
 2020-07-05 23:34:02 +02:00
Hüseyin ASLITÜRK
7abca30f41 LibVT: Replace u8 type to u32 for code point 
Replace KeyEvent text attribute usage with code_point.
 2020-06-16 13:15:17 +02:00
Andreas Kling
fdfda6dec2 AK: Make string-to-number conversion helpers return Optional 
Get rid of the weird old signature:

- int StringType::to_int(bool& ok) const

And replace it with sensible new signature:

- Optional<int> StringType::to_int() const
 2020-06-12 21:28:55 +02:00
Andreas Kling
165f69023b LibVT: Allow updating the window progress via an escape sequence 
You can now request an update of the terminal's window progress by
sending this escape sequence:

<esc>]9;<value>;<max_value>;<escape><backslash>

I'm sure we can find many interesting uses for this! :^)
 2020-05-30 23:00:35 +02:00
Sergey Bugaev
66c6e0035e LibVT: Fix emitting \0 when pressing a modifier key 
This causes the kernel to return EOF, which in turn confuses everything. This is
a regression from the LibVT port of VirtualConsole.
 2020-05-30 15:01:18 +02:00
Sergey Bugaev
620697d924 LibVT: Move most of key press handling logic into VT::Terminal 
This will let us share it between the userspace (TerminalWidget) and the Kernel.
 2020-05-27 11:19:38 +02:00
Andreas Kling
7b5b4bee70 LibVT: Store all-ASCII terminal lines as 8-bit characters 
To conserve memory, we now use byte storage for terminal lines until we
encounter a non-ASCII codepoint. At that point, we transparently switch
to UTF-32 storage for that one line.
 2020-05-17 12:32:09 +02:00
Andreas Kling
b8498dc55e LibVT: Add incremental UTF-8 parsing to the terminal input handler 
Instead of relying on the GUI code to handle UTF-8, we now process
and parse the incoming data into 32-bit codepoints ourselves.

This means that you can now show emojis in the terminal and they will
only take up one character cell each. :^)
 2020-05-16 19:49:24 +02:00
Andreas Kling
06f3eb0ecd LibVT: Tweak input parsing related names 2020-05-16 19:30:46 +02:00
Andreas Kling
c4edc4c550 LibVT: Switch VT::Line to being backed by 32-bit codepoints 
This will allow us to have much better Unicode support. It does incur
a memory usage regression which we'll have to optimize to cover.
 2020-05-16 19:30:43 +02:00
Andreas Kling
16965db86b LibVT: Move out the Line class from Terminal to its own class 2020-05-15 18:57:50 +02:00
Andreas Kling
901d2e3236 LibVT: Make selection follow terminal history scrollback :^) 
The buffer positions referred to by a VT::Position now include history
scrollback, meaning that a VT::Position with row=0 is at the start of
the history.

The active terminal buffer keeps moving in VT::Position coordinates
whenever we scroll. This allows selection to follow history. It also
allows us to click hyperlinks in history.

Fixes #957.
 2020-05-10 16:59:02 +02:00
AnotherTest
8487806ec0 LibVT: Support RGB colors (\x1b[38;2;<r>;<g>;<b>m) 2020-05-10 10:23:05 +02:00
Andreas Kling
f596b12a04 LibVT+Terminal: Support hyperlinks in the terminal :^) 
We now support basic hyperlinking in the terminal with <OSC>;8;;URL<ST>
Links are opened via LaunchServer on Ctrl+LeftMouse.
 2020-05-09 16:16:16 +02:00
Andreas Kling
a0616d96bf LibVT: Make the Xterm/OSC sequence parsing a bit more robust 
Tolerate sequences ending in both <0x07> (BEL) and <0x1b> <0x5c> (ST).
The former is apparently an Xterm extension and the latter is standard.
 2020-05-09 12:08:41 +02:00
Andreas Kling
283bd1a95c LibVT: Respond to DSR 0 (device status) 
Also emit query responses in a single write() syscall instead of going
character-at-a-time.
 2020-05-09 12:02:22 +02:00
AnotherTest
2663739db1 LibVT: Implement Device Status Report (cursor position report) 2020-04-10 00:58:59 +02:00
Andreas Kling
37fc6c117c Userspace: Add missing #includes now that AK/StdLibExtras.h is smaller 2020-03-08 13:06:51 +01:00
Andreas Kling
ceec1a7d38 AK: Make Vector use size_t for its size and capacity 2020-02-25 14:52:35 +01:00
Linus Groh
3549623dc6 LibVT: Rename escape$r to DECSTBM (Set Top and Bottom Margins) 2020-01-26 15:58:06 +01:00
Linus Groh
79f88db6fb LibVT: Remove empty line 2020-01-26 15:58:06 +01:00
Linus Groh
fd8c250866 LibVT: Replace escape$h_l with SM (Set Mode) / RM (Reset Mode) 2020-01-26 15:58:06 +01:00
Linus Groh
be57b81336 LibVT: Rename escape$f to HVP (Horizontal and Vertical Position) 2020-01-26 15:58:06 +01:00
Linus Groh
2edd8e37ae LibVT: Rename escape$c to DA (Device Attributes) 2020-01-26 15:58:06 +01:00
Linus Groh
dcb5bf9e50 LibVT: Rename escape$m to SGR (Select Graphic Rendition) 2020-01-26 15:58:06 +01:00
Linus Groh
296afbe624 LibVT: Rename escape$H to CUP (Cursor Position) 2020-01-26 15:58:06 +01:00
Linus Groh
5cdfc58242 LibVT: Rename escape$D to CUB (Cursor Backward) 2020-01-26 15:58:06 +01:00
Linus Groh
428a55a196 LibVT: Rename escape$C to CUF (Cursor Forward) 2020-01-26 15:58:06 +01:00
Linus Groh
35310dbd22 LibVT: Rename escape$B to CUD (Cursor Down) 2020-01-26 15:58:06 +01:00
Linus Groh
cc73284c64 LibVT: Rename escape$A to CUU (Cursor Up) 2020-01-26 15:58:06 +01:00
Andreas Kling
8c1f2d7131 LibVT: Rename escape$K and escape$J to EL and ED respectively 
We should rename all of these functions to match the real VT100 names.
This will make it 100% easier to work on LibVT.

For reference: https://vt100.net/docs/vt100-ug/
 2020-01-25 20:54:40 +01:00
Andreas Kling
4ed5c13792 LibVT: Fix off-by-ones in ED (Erase in Display) and EL (Erase in Line) 2020-01-25 20:51:49 +01:00
Andreas Kling
a3069b16fd LibVT: Make backspace (BS) non-destructive 
I did not realize this was a thing. This fixes an artifact in vttest.
 2020-01-25 20:39:23 +01:00
Andreas Kling
dca92af431 LibVT: Support IND and RI (cursor down/up basically) 2020-01-25 20:26:35 +01:00
Andreas Kling
0d191aae13 LibVT: Rename EscapeState::ExpectBracket => GotEscape 
Seems like there are many escape sequences that don't start with
brackets, so let's call the post-escape state "GotEscape" instead. :^)
 2020-01-25 20:02:31 +01:00
Andreas Kling
897ad1b927 LibVT: Support NEL (Next Line) 
I think this can just behave as if you sent a newline character ('\n').
 2020-01-25 20:01:43 +01:00
Andreas Kling
ab77bd4c3a LibVT: Support <esc>#8 to fill screen with E's 
This is apparently a "confidence test" supported by VT100.
 2020-01-25 19:52:35 +01:00
Andreas Kling
25f04b06ad LibVT: Don't go into "stomp" state after moving the cursor 
The curious "stomp" state occurs when you type your way all the way
over to the right side of the terminal buffer, and we "stomp" once on
the very last column, before jumping to the next line.

We should never go into "stomp" state in response to programmatically
setting the cursor position. This fixes a small artifact in vttest.
 2020-01-25 19:50:23 +01:00
Andreas Kling
20e41ab381 LibVT: Support HVP (Horizontal and Vertical Position) (final 'f') 2020-01-25 19:49:42 +01:00
Andreas Kling
e6f5ce8285 LibVT: Support the DA (Device Attributes) request (final 'c') 
This is used by vttest on startup to query the device for identity.
 2020-01-25 19:12:08 +01:00
Andreas Kling
94ca55cefd Meta: Add license header to source files 
As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.

For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.

Going forward, all new source files should include a license header.
 2020-01-18 09:45:54 +01:00
joshua stein
5c25983844 LibVT: enforce a minimum size of 1 column and 1 row 
Fixes #829
 2020-01-16 12:41:09 +01:00
Andreas Kling
6f4c380d95 AK: Use size_t for the length of strings 
Using int was a mistake. This patch changes String, StringImpl,
StringView and StringBuilder to use size_t instead of int for lengths.
Obviously a lot of code needs to change as a result of this.
 2019-12-09 17:51:21 +01:00
Brandon Scott
194f85431f LibVT: Fixed some debugging code that didn't compile 2019-12-01 11:52:17 +01:00
Andreas Kling
5a83e053b3 LibVT: Make inject_string() a public API so clients can use it 
This API allows you to add arbitrary input at the current cursor
position. You can even do escape sequences! :^)
 2019-10-22 22:14:36 +02:00
Sergey Bugaev
053419dc3c Terminal: Ensure a \t always advances by at least one column 2019-09-17 21:56:42 +02:00
Andreas Kling
462336ed49 LibVT: Add scrollback history to VT::Terminal 
The default (hard-coded) history size is 500 lines. When the history is
altered, the TerminalClient is notified via terminal_history_changed().
 2019-08-19 19:07:52 +02:00