From e289ff6b18e643eea4c72e04f7c0dc6ff768a335 Mon Sep 17 00:00:00 2001 From: "C. McEnroe" Date: Sat, 1 Feb 2020 02:55:07 -0500 Subject: Add term stuff Copied almost verbatim from existing catgirl... I think I did a better job on that state machine this time tbh. --- term.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 term.c (limited to 'term.c') diff --git a/term.c b/term.c new file mode 100644 index 0000000..ade5392 --- /dev/null +++ b/term.c @@ -0,0 +1,79 @@ +/* Copyright (C) 2020 C. McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +#include "chat.h" + +static bool xterm; + +void termInit(void) { + const char *term = getenv("TERM"); + xterm = (term && !strncmp(term, "xterm", 5)); +} + +void termNoFlow(void) { + struct termios attr; + int error = tcgetattr(STDIN_FILENO, &attr); + if (error) return; + attr.c_iflag &= ~IXON; + attr.c_cc[VDISCARD] = _POSIX_VDISABLE; + tcsetattr(STDIN_FILENO, TCSANOW, &attr); +} + +void termTitle(const char *title) { + if (!xterm) return; + printf("\33]0;%s\33\\", title); + fflush(stdout); +} + +static void privateMode(const char *mode, bool set) { + printf("\33[?%s%c", mode, (set ? 'h' : 'l')); + fflush(stdout); +} + +void termMode(enum TermMode mode, bool set) { + switch (mode) { + break; case TermFocus: privateMode("1004", set); + break; case TermPaste: privateMode("2004", set); + } +} + +enum { Esc = '\33' }; + +enum TermEvent termEvent(char ch) { + static int st; +#define T(st, ch) ((st) << 8 | (ch)) + switch (T(st, ch)) { + break; case T(0, Esc): st = 1; + break; case T(1, '['): st = 2; + break; case T(2, 'I'): st = 0; return TermFocusIn; + break; case T(2, 'O'): st = 0; return TermFocusOut; + break; case T(2, '2'): st = 3; + break; case T(3, '0'): st = 4; + break; case T(4, '0'): st = 5; + break; case T(5, '~'): st = 0; return TermPasteStart; + break; case T(4, '1'): st = 6; + break; case T(6, '~'): st = 0; return TermPasteEnd; + break; default: st = 0; + } + return 0; +#undef T +} -- cgit 1.4.0