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/* Copyright (C) 2019 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <wchar.h>
typedef unsigned uint;
enum {
NUL, SOH, STX, ETX, EOT, ENQ, ACK, BEL,
BS, HT, NL, VT, NP, CR, SO, SI,
DLE, DC1, DC2, DC3, DC4, NAK, SYN, ETB,
CAN, EM, SUB, ESC, FS, GS, RS, US,
DEL = 0x7F,
};
enum Attr {
Bold = 1 << 0,
Dim = 1 << 1,
Italic = 1 << 2,
Underline = 1 << 3,
Blink = 1 << 4,
Reverse = 1 << 5,
};
struct Style {
enum Attr attr;
int bg, fg;
};
struct Cell {
struct Style style;
wchar_t ch;
};
enum Mode {
Insert = 1 << 0,
Wrap = 1 << 1,
Cursor = 1 << 2,
};
enum { ParamCap = 16 };
struct Term {
uint rows, cols;
uint state;
struct {
uint s[ParamCap];
uint n, i;
} param;
enum Mode mode;
struct {
uint y, x;
} save;
struct {
uint top, bot;
} scroll;
uint y, x;
uint charset;
struct Style style;
struct Cell cells[];
};
struct Term *termAlloc(uint rows, uint cols);
void termUpdate(struct Term *term, wchar_t ch);
int termSnapshot(struct Term *term, int fd);
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