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Implement basic canonical mode for Windows

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The `cat` command now works properly, when run by itself on the bash
command prompt. It's working beautifully so far, and is only missing
a few keystrokes for clearing words and lines. Definitely works more
well than the one that ships with WIN32 :-)
This commit is contained in:
Justine Tunney 2023-10-03 22:34:45 -07:00
parent 4825737509
commit f26a280cda
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GPG key ID: BE714B4575D6E328
36 changed files with 320 additions and 231 deletions
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29
libc/calls/tcsetattr-nt.c
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@ -72,45 +72,34 @@ textwindows int tcsetattr_nt(int fd, int opt, const struct termios *tio) {
inmode &= ~(kNtEnableLineInput | kNtEnableEchoInput |
kNtEnableProcessedInput | kNtEnableVirtualTerminalInput);
inmode |= kNtEnableWindowInput;
__ttymagic = 0;
__ttyconf.magic = 0;
if (tio->c_lflag & ICANON) {
inmode |=
kNtEnableLineInput | kNtEnableProcessedInput | kNtEnableQuickEditMode;
} else {
inmode &= ~kNtEnableQuickEditMode;
__ttymagic |= kFdTtyUncanon;
if (!tio->c_cc[VMIN]) {
__ttymagic |= kFdTtyNoBlock;
}
__vtime = tio->c_cc[VTIME];
__ttyconf.magic |= kTtyUncanon;
}
if (!(tio->c_iflag & ICRNL)) {
__ttymagic |= kFdTtyNoCr2Nl;
__ttyconf.magic |= kTtyNoCr2Nl;
}
if (!(tio->c_lflag & ECHOCTL)) {
__ttymagic |= kFdTtyEchoRaw;
__ttyconf.magic |= kTtyEchoRaw;
}
if (tio->c_lflag & ECHO) {
// "kNtEnableEchoInput can be used only if the
// kNtEnableLineInput mode is also enabled." -MSDN
if (tio->c_lflag & ICANON) {
inmode |= kNtEnableEchoInput;
} else {
// If ECHO is enabled in raw mode, then read(0) needs to
// magically write(1) to simulate echoing. This normally
// visualizes control codes, e.g. \r → ^M unless ECHOCTL
// hasn't been specified.
__ttymagic |= kFdTtyEchoing;
}
} else {
__ttyconf.magic |= kTtySilence;
}
if (!(tio->c_lflag & ISIG)) {
__ttymagic |= kFdTtyNoIsigs;
__ttyconf.magic |= kTtyNoIsigs;
}
__veof = tio->c_cc[VEOF];
__vintr = tio->c_cc[VINTR];
__vquit = tio->c_cc[VQUIT];
if ((tio->c_lflag & ISIG) && //
tio->c_cc[VINTR] == CTRL('C')) {
memcpy(__ttyconf.c_cc, tio->c_cc, NCCS);
if ((tio->c_lflag & ISIG) && __ttyconf.vintr == CTRL('C')) {
// allows ctrl-c to be delivered asynchronously via win32
inmode |= kNtEnableProcessedInput;
}