Copyright © 2006 Pierre Habouzit
*/
+#define _GNU_SOURCE
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/ioctl.h>
#include <sys/types.h>
+#include <termios.h>
+#include <wchar.h>
#include "madtty.h"
#define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
+static int has_default = 0;
+
enum {
C0_NUL = 0x00,
C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
};
-struct mtty_row_t {
+struct madtty_t {
+ int pty;
+ pid_t childpid;
+
+ /* flags */
+ unsigned seen_input : 1;
+ unsigned insert : 1;
+ unsigned escaped : 1;
+ unsigned graphmode : 1;
+ unsigned curshid : 1;
+
+ /* geometry */
+ int rows, cols;
+ unsigned curattrs;
+
+ struct t_row_t *lines;
+ struct t_row_t *scroll_top;
+ struct t_row_t *scroll_bot;
+
+ /* cursor */
+ struct t_row_t *curs_row;
+ int curs_col, curs_srow, curs_scol;
+
+ /* buffers and parsing state */
+ mbstate_t ps;
+ char rbuf[BUFSIZ];
+ char ebuf[BUFSIZ];
+ int rlen, elen;
+};
+
+typedef struct t_row_t {
wchar_t *text;
uint16_t *attr;
unsigned dirty : 1;
-};
+} t_row_t;
static char const * const keytable[KEY_MAX+1] = {
['\n'] = "\r",
[KEY_F(10)] = "\e[21~",
};
-static void mtty_row_set(mtty_row_t *row, int start, int len, uint16_t attr)
+static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
{
row->dirty = true;
wmemset(row->text + start, 0, len);
}
}
-static void mtty_row_roll(mtty_row_t *start, mtty_row_t *end, int count)
+static void t_row_roll(t_row_t *start, t_row_t *end, int count)
{
int n = end - start;
count += n;
if (count) {
- mtty_row_t *buf = alloca(count * sizeof(mtty_row_t));
+ t_row_t *buf = alloca(count * sizeof(t_row_t));
- memcpy(buf, start, count * sizeof(mtty_row_t));
- memmove(start, start + count, (n - count) * sizeof(mtty_row_t));
- memcpy(end - count, buf, count * sizeof(mtty_row_t));
- for (mtty_row_t *row = start; row < end; row++) {
+ memcpy(buf, start, count * sizeof(t_row_t));
+ memmove(start, start + count, (n - count) * sizeof(t_row_t));
+ memcpy(end - count, buf, count * sizeof(t_row_t));
+ for (t_row_t *row = start; row < end; row++) {
row->dirty = true;
}
}
}
-static void clamp_cursor_to_bounds(madtty_t *rt)
+static void clamp_cursor_to_bounds(madtty_t *t)
{
- if (rt->curs_row < rt->lines) {
- rt->curs_row = rt->lines;
+ if (t->curs_row < t->lines) {
+ t->curs_row = t->lines;
}
- if (rt->curs_row >= rt->lines + rt->rows) {
- rt->curs_row = rt->lines + rt->rows - 1;
+ if (t->curs_row >= t->lines + t->rows) {
+ t->curs_row = t->lines + t->rows - 1;
}
- if (rt->curs_col < 0) {
- rt->curs_col = 0;
+ if (t->curs_col < 0) {
+ t->curs_col = 0;
}
- if (rt->curs_col >= rt->cols) {
- rt->curs_col = rt->cols - 1;
+ if (t->curs_col >= t->cols) {
+ t->curs_col = t->cols - 1;
}
}
-static void cursor_line_down(madtty_t *rt)
+static void cursor_line_down(madtty_t *t)
{
- rt->curs_row++;
- if (rt->curs_row < rt->scroll_bot)
+ t->curs_row++;
+ if (t->curs_row < t->scroll_bot)
return;
- rt->curs_row = rt->scroll_bot - 1;
- mtty_row_roll(rt->scroll_top, rt->scroll_bot, 1);
- mtty_row_set(rt->curs_row, 0, rt->cols, 0);
+ t->curs_row = t->scroll_bot - 1;
+ t_row_roll(t->scroll_top, t->scroll_bot, 1);
+ t_row_set(t->curs_row, 0, t->cols, 0);
}
__attribute__((const))
>> NCURSES_ATTR_SHIFT;
}
-static void new_escape_sequence(madtty_t *rt)
+static void new_escape_sequence(madtty_t *t)
{
- rt->escaped = true;
- rt->elen = 0;
- rt->ebuf[0] = '\0';
+ t->escaped = true;
+ t->elen = 0;
+ t->ebuf[0] = '\0';
}
-static void cancel_escape_sequence(madtty_t *rt)
+static void cancel_escape_sequence(madtty_t *t)
{
- rt->escaped = false;
- rt->elen = 0;
- rt->ebuf[0] = '\0';
+ t->escaped = false;
+ t->elen = 0;
+ t->ebuf[0] = '\0';
}
static bool is_valid_csi_ender(int c)
}
/* interprets a 'set attribute' (SGR) CSI escape sequence */
-static void interpret_csi_SGR(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
{
int i;
if (pcount == 0) {
/* special case: reset attributes */
- rt->curattrs = A_NORMAL;
+ t->curattrs = A_NORMAL;
return;
}
for (i = 0; i < pcount; i++) {
switch (param[i]) {
#define CASE(x, op) case x: op; break
- CASE(0, rt->curattrs = A_NORMAL);
- CASE(1, rt->curattrs |= A_BOLD);
- CASE(4, rt->curattrs |= A_UNDERLINE);
- CASE(5, rt->curattrs |= A_BLINK);
- CASE(6, rt->curattrs |= A_BLINK);
- CASE(7, rt->curattrs |= A_REVERSE);
- CASE(8, rt->curattrs |= A_INVIS);
- CASE(22, rt->curattrs &= ~A_BOLD);
- CASE(24, rt->curattrs &= ~A_UNDERLINE);
- CASE(25, rt->curattrs &= ~A_BLINK);
- CASE(27, rt->curattrs &= ~A_REVERSE);
- CASE(28, rt->curattrs &= ~A_INVIS);
-
- case 30 ... 37:
- rt->curattrs &= ~0xf0;
- rt->curattrs |= (param[i] - 29) << 4;
+ CASE(0, t->curattrs = A_NORMAL);
+ CASE(1, t->curattrs |= A_BOLD);
+ CASE(4, t->curattrs |= A_UNDERLINE);
+ CASE(5, t->curattrs |= A_BLINK);
+ CASE(6, t->curattrs |= A_BLINK);
+ CASE(7, t->curattrs |= A_REVERSE);
+ CASE(8, t->curattrs |= A_INVIS);
+ CASE(22, t->curattrs &= ~A_BOLD);
+ CASE(24, t->curattrs &= ~A_UNDERLINE);
+ CASE(25, t->curattrs &= ~A_BLINK);
+ CASE(27, t->curattrs &= ~A_REVERSE);
+ CASE(28, t->curattrs &= ~A_INVIS);
+
+ case 30 ... 37: /* fg */
+ if (has_default) {
+ t->curattrs &= ~0xf0;
+ t->curattrs |= (param[i] + 1 - 30) << 4;
+ } else {
+ t->curattrs &= ~070;
+ t->curattrs |= (7 - (param[i] - 30)) << 3;
+ }
break;
case 39:
- rt->curattrs &= ~0xf0;
+ t->curattrs &= has_default ? ~0xf0 : ~070;
break;
- case 40 ... 47:
- rt->curattrs &= ~0x0f;
- rt->curattrs |= (param[i] - 39);
+ case 40 ... 47: /* bg */
+ if (has_default) {
+ t->curattrs &= ~0x0f;
+ t->curattrs |= (param[i] + 1 - 40);
+ } else {
+ t->curattrs &= ~007;
+ t->curattrs |= (param[i] - 40);
+ }
break;
case 49:
- rt->curattrs &= ~0x0f;
+ t->curattrs &= has_default ? ~0x0f : ~007;
break;
default:
}
/* interprets an 'erase display' (ED) escape sequence */
-static void interpret_csi_ED(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
{
- mtty_row_t *row, *start, *end;
- attr_t attr = build_attrs(rt->curattrs);
+ t_row_t *row, *start, *end;
+ attr_t attr = build_attrs(t->curattrs);
/* decide range */
if (pcount && param[0] == 2) {
- start = rt->lines;
- end = rt->lines + rt->rows;
+ start = t->lines;
+ end = t->lines + t->rows;
} else
if (pcount && param[0] == 1) {
- start = rt->lines;
- end = rt->curs_row;
- mtty_row_set(rt->curs_row, 0, rt->curs_col + 1, attr);
+ start = t->lines;
+ end = t->curs_row;
+ t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
} else {
- mtty_row_set(rt->curs_row, rt->curs_col,
- rt->cols - rt->curs_col, attr);
- start = rt->curs_row + 1;
- end = rt->lines + rt->rows;
+ t_row_set(t->curs_row, t->curs_col,
+ t->cols - t->curs_col, attr);
+ start = t->curs_row + 1;
+ end = t->lines + t->rows;
}
for (row = start; row < end; row++) {
- mtty_row_set(row, 0, rt->cols, attr);
+ t_row_set(row, 0, t->cols, attr);
}
}
/* interprets a 'move cursor' (CUP) escape sequence */
-static void interpret_csi_CUP(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
{
if (pcount == 0) {
/* special case */
- rt->curs_row = rt->lines;
- rt->curs_col = 0;
+ t->curs_row = t->lines;
+ t->curs_col = 0;
return;
} else
if (pcount < 2) {
return; /* malformed */
}
- rt->curs_row = rt->lines + param[0] - 1; /* convert from 1-based to 0-based */
- rt->curs_col = param[1] - 1; /* convert from 1-based to 0-based */
+ t->curs_row = t->lines + param[0] - 1;
+ t->curs_col = param[1] - 1;
- clamp_cursor_to_bounds(rt);
+ clamp_cursor_to_bounds(t);
}
/* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
* CPL, CHA, HPR, VPA, VPR, HPA */
-static void interpret_csi_C(madtty_t *rt, char verb, int param[], int pcount)
+static void
+interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
{
int n = (pcount && param[0] > 0) ? param[0] : 1;
switch (verb) {
- case 'A': rt->curs_row -= n; break;
- case 'B': case 'e': rt->curs_row += n; break;
- case 'C': case 'a': rt->curs_col += n; break;
- case 'D': rt->curs_col -= n; break;
- case 'E': rt->curs_row += n; rt->curs_col = 0; break;
- case 'F': rt->curs_row -= n; rt->curs_col = 0; break;
- case 'G': case '`': rt->curs_col = param[0] - 1; break;
- case 'd': rt->curs_row = rt->lines + param[0] - 1; break;
+ case 'A': t->curs_row -= n; break;
+ case 'B': case 'e': t->curs_row += n; break;
+ case 'C': case 'a': t->curs_col += n; break;
+ case 'D': t->curs_col -= n; break;
+ case 'E': t->curs_row += n; t->curs_col = 0; break;
+ case 'F': t->curs_row -= n; t->curs_col = 0; break;
+ case 'G': case '`': t->curs_col = param[0] - 1; break;
+ case 'd': t->curs_row = t->lines + param[0] - 1; break;
}
- clamp_cursor_to_bounds(rt);
+ clamp_cursor_to_bounds(t);
}
/* Interpret the 'erase line' escape sequence */
-static void interpret_csi_EL(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
{
- attr_t attr = build_attrs(rt->curattrs);
+ attr_t attr = build_attrs(t->curattrs);
switch (pcount ? param[0] : 0) {
case 1:
- mtty_row_set(rt->curs_row, 0, rt->curs_col + 1, attr);
+ t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
break;
case 2:
- mtty_row_set(rt->curs_row, 0, rt->cols, attr);
+ t_row_set(t->curs_row, 0, t->cols, attr);
break;
default:
- mtty_row_set(rt->curs_row, rt->curs_col, rt->cols - rt->curs_col,
+ t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
attr);
break;
}
}
/* Interpret the 'insert blanks' sequence (ICH) */
-static void interpret_csi_ICH(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
{
- mtty_row_t *row = rt->curs_row;
+ t_row_t *row = t->curs_row;
int n = (pcount && param[0] > 0) ? param[0] : 1;
int i;
- if (rt->curs_col + n > rt->cols) {
- n = rt->cols - rt->curs_col;
+ if (t->curs_col + n > t->cols) {
+ n = t->cols - t->curs_col;
}
- for (i = rt->cols - 1; i >= rt->curs_col + n; i--) {
+ for (i = t->cols - 1; i >= t->curs_col + n; i--) {
row->text[i] = row->text[i - n];
row->attr[i] = row->attr[i - n];
}
- mtty_row_set(row, rt->curs_col, n, build_attrs(rt->curattrs));
+ t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
}
/* Interpret the 'delete chars' sequence (DCH) */
-static void interpret_csi_DCH(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
{
- mtty_row_t *row = rt->curs_row;
+ t_row_t *row = t->curs_row;
int n = (pcount && param[0] > 0) ? param[0] : 1;
int i;
- if (rt->curs_col + n > rt->cols) {
- n = rt->cols - rt->curs_col;
+ if (t->curs_col + n > t->cols) {
+ n = t->cols - t->curs_col;
}
- for (i = rt->curs_col; i < rt->cols - n; i++) {
+ for (i = t->curs_col; i < t->cols - n; i++) {
row->text[i] = row->text[i + n];
row->attr[i] = row->attr[i + n];
}
- mtty_row_set(row, rt->cols - n, n, build_attrs(rt->curattrs));
+ t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
}
/* Interpret a 'scroll reverse' (SR) */
-static void interpret_csi_SR(madtty_t *rt)
+static void interpret_csi_SR(madtty_t *t)
{
- mtty_row_roll(rt->scroll_top, rt->scroll_bot, -1);
- mtty_row_set(rt->scroll_top, 0, rt->cols, build_attrs(rt->curattrs));
+ t_row_roll(t->scroll_top, t->scroll_bot, -1);
+ t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
}
/* Interpret an 'insert line' sequence (IL) */
-static void interpret_csi_IL(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
{
int n = (pcount && param[0] > 0) ? param[0] : 1;
- if (rt->curs_row + n >= rt->scroll_bot) {
- for (mtty_row_t *row = rt->curs_row; row < rt->scroll_bot; row++) {
- mtty_row_set(row, 0, rt->cols, build_attrs(rt->curattrs));
+ if (t->curs_row + n >= t->scroll_bot) {
+ for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
+ t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
}
} else {
- mtty_row_roll(rt->curs_row, rt->scroll_bot, -n);
- for (mtty_row_t *row = rt->curs_row; row < rt->curs_row + n; row++) {
- mtty_row_set(row, 0, rt->cols, build_attrs(rt->curattrs));
+ t_row_roll(t->curs_row, t->scroll_bot, -n);
+ for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
+ t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
}
}
}
/* Interpret a 'delete line' sequence (DL) */
-static void interpret_csi_DL(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
{
int n = (pcount && param[0] > 0) ? param[0] : 1;
- if (rt->curs_row + n >= rt->scroll_bot) {
- for (mtty_row_t *row = rt->curs_row; row < rt->scroll_bot; row++) {
- mtty_row_set(row, 0, rt->cols, build_attrs(rt->curattrs));
+ if (t->curs_row + n >= t->scroll_bot) {
+ for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
+ t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
}
} else {
- mtty_row_roll(rt->curs_row, rt->scroll_bot, n);
- for (mtty_row_t *row = rt->scroll_bot - n; row < rt->scroll_bot; row++) {
- mtty_row_set(row, 0, rt->cols, build_attrs(rt->curattrs));
+ t_row_roll(t->curs_row, t->scroll_bot, n);
+ for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
+ t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
}
}
}
/* Interpret an 'erase characters' (ECH) sequence */
-static void interpret_csi_ECH(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
{
int n = (pcount && param[0] > 0) ? param[0] : 1;
- if (rt->curs_col + n < rt->cols) {
- n = rt->cols - rt->curs_col;
+ if (t->curs_col + n < t->cols) {
+ n = t->cols - t->curs_col;
}
- mtty_row_set(rt->curs_row, rt->curs_col, n, build_attrs(rt->curattrs));
+ t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
}
/* Interpret a 'set scrolling region' (DECSTBM) sequence */
-static void interpret_csi_DECSTBM(madtty_t *rt, int param[], int pcount)
+static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
{
int new_top, new_bot;
switch (pcount) {
case 0:
- rt->scroll_top = rt->lines;
- rt->scroll_bot = rt->lines + rt->rows;
+ t->scroll_top = t->lines;
+ t->scroll_bot = t->lines + t->rows;
break;
default:
return; /* malformed */
/* clamp to bounds */
if (new_top < 0)
new_top = 0;
- if (new_top >= rt->rows)
- new_top = rt->rows - 1;
+ if (new_top >= t->rows)
+ new_top = t->rows - 1;
if (new_bot < 0)
new_bot = 0;
- if (new_bot >= rt->rows)
- new_bot = rt->rows;
+ if (new_bot >= t->rows)
+ new_bot = t->rows;
/* check for range validity */
if (new_top < new_bot) {
- rt->scroll_top = rt->lines + new_top;
- rt->scroll_bot = rt->lines + new_bot;
+ t->scroll_top = t->lines + new_top;
+ t->scroll_bot = t->lines + new_bot;
}
break;
}
}
-static void es_interpret_csi(madtty_t *rt)
+static void es_interpret_csi(madtty_t *t)
{
- static int csiparam[MAX_CSI_ES_PARAMS];
+ static int csiparam[BUFSIZ];
int param_count = 0;
- const char *p = rt->ebuf + 1;
- char verb = rt->ebuf[rt->elen - 1];
+ const char *p = t->ebuf + 1;
+ char verb = t->ebuf[t->elen - 1];
- p += rt->ebuf[1] == '?'; /* CSI private mode */
+ p += t->ebuf[1] == '?'; /* CSI private mode */
/* parse numeric parameters */
while (isdigit((unsigned char)*p) || *p == ';') {
if (*p == ';') {
- if (param_count >= MAX_CSI_ES_PARAMS) return; /* too long! */
+ if (param_count >= (int)sizeof(csiparam))
+ return; /* too long! */
csiparam[param_count++] = 0;
} else {
if (param_count == 0) csiparam[param_count++] = 0;
p++;
}
- if (rt->ebuf[1] == '?') {
+ if (t->ebuf[1] == '?') {
switch (verb) {
case 'l':
if (csiparam[0] == 25)
- rt->curshid = true;
+ t->curshid = true;
break;
case 'h':
if (csiparam[0] == 25)
- rt->curshid = false;
+ t->curshid = false;
break;
}
}
switch (verb) {
case 'h':
if (param_count == 1 && csiparam[0] == 4) /* insert mode */
- rt->insert = true;
+ t->insert = true;
break;
case 'l':
if (param_count == 1 && csiparam[0] == 4) /* replace mode */
- rt->insert = false;
+ t->insert = false;
break;
case 'm': /* it's a 'set attribute' sequence */
- interpret_csi_SGR(rt, csiparam, param_count); break;
+ interpret_csi_SGR(t, csiparam, param_count); break;
case 'J': /* it's an 'erase display' sequence */
- interpret_csi_ED(rt, csiparam, param_count); break;
+ interpret_csi_ED(t, csiparam, param_count); break;
case 'H': case 'f': /* it's a 'move cursor' sequence */
- interpret_csi_CUP(rt, csiparam, param_count); break;
+ interpret_csi_CUP(t, csiparam, param_count); break;
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
case 'e': case 'a': case 'd': case '`':
/* it is a 'relative move' */
- interpret_csi_C(rt, verb, csiparam, param_count); break;
+ interpret_csi_C(t, verb, csiparam, param_count); break;
case 'K': /* erase line */
- interpret_csi_EL(rt, csiparam, param_count); break;
+ interpret_csi_EL(t, csiparam, param_count); break;
case '@': /* insert characters */
- interpret_csi_ICH(rt, csiparam, param_count); break;
+ interpret_csi_ICH(t, csiparam, param_count); break;
case 'P': /* delete characters */
- interpret_csi_DCH(rt, csiparam, param_count); break;
+ interpret_csi_DCH(t, csiparam, param_count); break;
case 'L': /* insert lines */
- interpret_csi_IL(rt, csiparam, param_count); break;
+ interpret_csi_IL(t, csiparam, param_count); break;
case 'M': /* delete lines */
- interpret_csi_DL(rt, csiparam, param_count); break;
+ interpret_csi_DL(t, csiparam, param_count); break;
case 'X': /* erase chars */
- interpret_csi_ECH(rt, csiparam, param_count); break;
+ interpret_csi_ECH(t, csiparam, param_count); break;
case 'r': /* set scrolling region */
- interpret_csi_DECSTBM(rt, csiparam, param_count); break;
+ interpret_csi_DECSTBM(t, csiparam, param_count); break;
case 's': /* save cursor location */
- rt->curs_srow = rt->curs_row - rt->lines;
- rt->curs_scol = rt->curs_col;
+ t->curs_srow = t->curs_row - t->lines;
+ t->curs_scol = t->curs_col;
break;
case 'u': /* restore cursor location */
- rt->curs_row = rt->lines + rt->curs_srow;
- rt->curs_col = rt->curs_scol;
- clamp_cursor_to_bounds(rt);
+ t->curs_row = t->lines + t->curs_srow;
+ t->curs_col = t->curs_scol;
+ clamp_cursor_to_bounds(t);
break;
default:
break;
}
}
-static void try_interpret_escape_seq(madtty_t *rt)
+static void try_interpret_escape_seq(madtty_t *t)
{
- char lastchar = rt->ebuf[rt->elen-1];
+ char lastchar = t->ebuf[t->elen-1];
- switch (*rt->ebuf) {
+ switch (*t->ebuf) {
case '\0':
return;
case 'M':
- interpret_csi_SR(rt);
- cancel_escape_sequence(rt);
+ interpret_csi_SR(t);
+ cancel_escape_sequence(t);
return;
case '(':
case ')':
- if (rt->elen == 2)
+ if (t->elen == 2)
goto cancel;
break;
case '[':
if (is_valid_csi_ender(lastchar)) {
- es_interpret_csi(rt);
- cancel_escape_sequence(rt);
+ es_interpret_csi(t);
+ cancel_escape_sequence(t);
return;
}
break;
}
- if (rt->elen + 1 >= (int)sizeof(rt->ebuf)) {
- int i;
+ if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
cancel:
-#if 0
- fprintf(stderr, "cancelled: \\033");
- for (i = 0; i < rt->elen; i++) {
- int c = rt->ebuf[i];
- if (isprint(c) && c >= ' ') {
- fputc(c, stderr);
- } else {
- fprintf(stderr, "\\%03o", c);
- }
- }
- fputc('\n', stderr);
-#endif
- cancel_escape_sequence(rt);
+ cancel_escape_sequence(t);
}
}
-static void madtty_process_nonprinting(madtty_t *rt, wchar_t wc)
+static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
{
switch (wc) {
case C0_ESC:
- new_escape_sequence(rt);
+ new_escape_sequence(t);
break;
case C0_BEL:
break;
case C0_BS:
- if (rt->curs_col > 0)
- rt->curs_col--;
+ if (t->curs_col > 0)
+ t->curs_col--;
break;
case C0_HT: /* tab */
- rt->curs_col = (rt->curs_col + 8) & ~7;
- if (rt->curs_col >= rt->cols)
- rt->curs_col = rt->cols - 1;
+ t->curs_col = (t->curs_col + 8) & ~7;
+ if (t->curs_col >= t->cols)
+ t->curs_col = t->cols - 1;
break;
case C0_CR:
- rt->curs_col = 0;
+ t->curs_col = 0;
break;
case C0_VT:
case C0_FF:
case C0_LF:
- cursor_line_down(rt);
+ cursor_line_down(t);
break;
case C0_SO: /* shift out - acs */
- rt->graphmode = true;
+ t->graphmode = true;
break;
case C0_SI: /* shift in - acs */
- rt->graphmode = false;
+ t->graphmode = false;
break;
}
}
-void madtty_putc(madtty_t *rt, wchar_t wc)
+// vt100 special graphics and line drawing
+// 5f-7e standard vt100
+// 40-5e rxvt extension for extra curses acs chars
+static uint16_t const vt100_0[62] = { // 41 .. 7e
+ 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
+ 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
+ 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
+ 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
+ 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
+ 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
+ 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
+ 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
+};
+
+void madtty_putc(madtty_t *t, wchar_t wc)
{
- if (!rt->seen_input) {
- rt->seen_input = 1;
- kill(-rt->childpid, SIGWINCH);
- }
+ int width = 0;
-#if 0
- if (wc == '\n' || (wc >= ' ' && isprint(wc))) {
- fputc(wc, stderr);
- } else {
- fprintf(stderr, "\\%03o", wc);
+ if (!t->seen_input) {
+ t->seen_input = 1;
+ kill(-t->childpid, SIGWINCH);
}
-#endif
- if (rt->escaped) {
- assert (rt->elen + 1 < (int)sizeof(rt->ebuf));
- rt->ebuf[rt->elen] = wc;
- rt->ebuf[++rt->elen] = '\0';
- try_interpret_escape_seq(rt);
+ if (t->escaped) {
+ assert (t->elen + 1 < (int)sizeof(t->ebuf));
+ t->ebuf[t->elen] = wc;
+ t->ebuf[++t->elen] = '\0';
+ try_interpret_escape_seq(t);
} else if (IS_CONTROL(wc)) {
- madtty_process_nonprinting(rt, wc);
+ madtty_process_nonprinting(t, wc);
} else {
- mtty_row_t *tmp;
-
- if (rt->graphmode) {
- // vt100 special graphics and line drawing
- // 5f-7e standard vt100
- // 40-5e rxvt extension for extra curses acs chars
- static uint16_t vt100_0[62] = { // 41 .. 7e
- 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
- 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
- 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
- 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
- 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
- 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
- 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
- 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
- };
+ t_row_t *tmp;
+ if (t->graphmode) {
if (wc >= 0x41 && wc <= 0x7e && vt100_0[wc - 0x41]) {
wc = vt100_0[wc - 0x41];
- // width = 1; // vt100 line drawing characters are always single-width
}
+ width = 1;
+ } else {
+ width = wcwidth(wc) ?: 1;
}
- if (rt->curs_col >= rt->cols) {
- rt->curs_col = 0;
- cursor_line_down(rt);
+ if (width == 2 && t->curs_col == t->cols - 1) {
+ tmp = t->curs_row;
+ tmp->dirty = true;
+ tmp->text[t->curs_col] = 0;
+ tmp->attr[t->curs_col] = build_attrs(t->curattrs);
+ t->curs_col++;
}
- tmp = rt->curs_row;
-
- if (rt->insert) {
- wmemmove(tmp->text + rt->curs_col + 1, tmp->text + rt->curs_col,
- (rt->cols - rt->curs_col - 1));
- memmove(tmp->attr + rt->curs_col + 1, tmp->attr + rt->curs_col,
- (rt->cols - rt->curs_col - 1) * sizeof(tmp->attr[0]));
+ if (t->curs_col >= t->cols) {
+ t->curs_col = 0;
+ cursor_line_down(t);
}
- tmp->text[rt->curs_col] = wc;
- tmp->attr[rt->curs_col] = build_attrs(rt->curattrs);
+ tmp = t->curs_row;
tmp->dirty = true;
- rt->curs_col++;
+
+ if (t->insert) {
+ wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
+ (t->cols - t->curs_col - width));
+ memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
+ (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
+ }
+
+ tmp->text[t->curs_col] = wc;
+ tmp->attr[t->curs_col] = build_attrs(t->curattrs);
+ t->curs_col++;
+ if (width == 2) {
+ tmp->text[t->curs_col] = 0;
+ tmp->attr[t->curs_col] = build_attrs(t->curattrs);
+ t->curs_col++;
+ }
}
}
-int madtty_process(madtty_t *rt)
+int madtty_process(madtty_t *t)
{
int res, pos = 0;
- if (rt->pty < 0) {
+ if (t->pty < 0) {
errno = EINVAL;
return -1;
}
- res = read(rt->pty, rt->rbuf + rt->rlen, sizeof(rt->rbuf) - rt->rlen);
+ res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
if (res < 0)
return -1;
- rt->rlen += res;
- while (pos < rt->rlen) {
+ t->rlen += res;
+ while (pos < t->rlen) {
wchar_t wc;
ssize_t len;
- len = (ssize_t)mbrtowc(&wc, rt->rbuf + pos, rt->rlen - pos, &rt->ps);
+ len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
if (len == -2) {
- rt->rlen -= pos;
- memmove(rt->rbuf, rt->rbuf + pos, rt->rlen);
+ t->rlen -= pos;
+ memmove(t->rbuf, t->rbuf + pos, t->rlen);
return 0;
}
if (len == -1) {
len = 1;
- wc = rt->rbuf[pos];
+ wc = t->rbuf[pos];
}
pos += len ? len : 1;
- madtty_putc(rt, wc);
+ madtty_putc(t, wc);
}
- rt->rlen -= pos;
- memmove(rt->rbuf, rt->rbuf + pos, rt->rlen);
+ t->rlen -= pos;
+ memmove(t->rbuf, t->rbuf + pos, t->rlen);
return 0;
}
madtty_t *madtty_create(int rows, int cols)
{
- madtty_t *rt;
+ madtty_t *t;
int i;
if (rows <= 0 || cols <= 0)
return NULL;
- rt = (madtty_t*)calloc(sizeof(madtty_t), 1);
- if (!rt)
+ t = (madtty_t*)calloc(sizeof(madtty_t), 1);
+ if (!t)
return NULL;
/* record dimensions */
- rt->rows = rows;
- rt->cols = cols;
+ t->rows = rows;
+ t->cols = cols;
/* default mode is replace */
- rt->insert = false;
+ t->insert = false;
/* create the cell matrix */
- rt->lines = (mtty_row_t*)calloc(sizeof(mtty_row_t), rt->rows);
- for (i = 0; i < rt->rows; i++) {
- rt->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), rt->cols);
- rt->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), rt->cols);
+ t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
+ for (i = 0; i < t->rows; i++) {
+ t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
+ t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
}
- rt->pty = -1; /* no pty for now */
+ t->pty = -1; /* no pty for now */
/* initialization of other public fields */
- rt->curs_row = rt->lines;
- rt->curs_col = 0;
- rt->curattrs = A_NORMAL; /* white text over black background */
+ t->curs_row = t->lines;
+ t->curs_col = 0;
+ t->curattrs = A_NORMAL; /* white text over black background */
/* initial scrolling area is the whole window */
- rt->scroll_top = rt->lines;
- rt->scroll_bot = rt->lines + rt->rows;
+ t->scroll_top = t->lines;
+ t->scroll_bot = t->lines + t->rows;
+
+ return t;
+}
+
+void madtty_resize(madtty_t *t, int rows, int cols)
+{
+ struct winsize ws = { .ws_row = rows, .ws_col = cols };
+ t_row_t *lines = t->lines;
+
+ if (rows <= 0 || cols <= 0)
+ return;
+
+ if (t->rows != rows) {
+ while (t->rows > rows) {
+ free(lines[t->rows - 1].text);
+ free(lines[t->rows - 1].attr);
+ t->rows--;
+ }
+
+ lines = realloc(lines, sizeof(t_row_t) * rows);
+ }
+
+ if (t->cols != cols) {
+ for (int row = 0; row < t->rows; row++) {
+ lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
+ lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
+ if (t->cols < cols)
+ t_row_set(lines + row, t->cols, cols - t->cols, 0);
+ }
+ t->cols = cols;
+ }
+
+ while (t->rows < rows) {
+ lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
+ lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
+ t->rows++;
+ }
- return rt;
+ t->curs_row += lines - t->lines;
+ t->scroll_top += lines - t->lines;
+ t->scroll_bot += lines - t->lines;
+ if (t->scroll_bot > lines + t->rows)
+ t->scroll_bot = lines + t->rows;
+ t->lines = lines;
+ clamp_cursor_to_bounds(t);
+ ioctl(t->pty, TIOCSWINSZ, &ws);
+ kill(-t->childpid, SIGWINCH);
}
-void madtty_destroy(madtty_t *rt)
+void madtty_destroy(madtty_t *t)
{
int i;
- if (!rt)
+ if (!t)
return;
- for (i = 0; i < rt->rows; i++) {
- free(rt->lines[i].text);
- free(rt->lines[i].attr);
+ for (i = 0; i < t->rows; i++) {
+ free(t->lines[i].text);
+ free(t->lines[i].attr);
}
- free(rt->lines);
- free(rt);
+ free(t->lines);
+ free(t);
}
-void madtty_draw(madtty_t *rt, WINDOW *win, int srow, int scol)
+void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
{
curs_set(0);
- for (int i = 0; i < rt->rows; i++) {
- mtty_row_t *row = rt->lines + i;
+ for (int i = 0; i < t->rows; i++) {
+ t_row_t *row = t->lines + i;
if (!row->dirty)
continue;
wmove(win, srow + i, scol);
- for (int j = 0; j < rt->cols; j++) {
+ for (int j = 0; j < t->cols; j++) {
if (!j || row->attr[j] != row->attr[j - 1])
wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
if (row->text[j] >= 128) {
len = wcrtomb(buf, row->text[j], NULL);
waddnstr(win, buf, len);
+ if (wcwidth(row->text[j]) > 1)
+ j++;
} else {
waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
}
row->dirty = false;
}
- wmove(win, srow + rt->curs_row - rt->lines, scol + rt->curs_col);
- curs_set(!rt->curshid);
+ wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
+ curs_set(!t->curshid);
}
/******************************************************/
-pid_t madtty_forkpty(madtty_t *rt, const char *path, const char *argv[])
+pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
{
struct winsize ws;
pid_t pid;
- ws.ws_row = rt->rows;
- ws.ws_col = rt->cols;
+ ws.ws_row = t->rows;
+ ws.ws_col = t->cols;
ws.ws_xpixel = ws.ws_ypixel = 0;
- pid = forkpty(&rt->pty, NULL, NULL, &ws);
+ pid = forkpty(&t->pty, NULL, NULL, &ws);
if (pid < 0)
return -1;
if (pid == 0) {
setsid();
setenv("TERM", "rxvt", 1);
- execv(path, (char *const*)argv);
+ execv(p, (char *const*)argv);
fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
exit(1);
}
- return rt->childpid = pid;
+ if (pty)
+ *pty = t->pty;
+ return t->childpid = pid;
+}
+
+int madtty_getpty(madtty_t *t)
+{
+ return t->pty;
}
-void madtty_keypress(madtty_t *rt, int keycode)
+void madtty_keypress(madtty_t *t, int keycode)
{
char c = (char)keycode;
const char *buf;
int len;
-#if 0
- if (keycode == KEY_F(1)) {
-#define MIN(a, b) ((a < (b)) ? a : (b))
- kill(-rt->childpid, SIGWINCH);
- rt->scroll_bot = MIN(rt->scroll_bot, rt->lines + rt->rows);
- rt->curs_row = MIN(rt->curs_row, rt->lines + rt->rows);
- printf(stderr, "%d\n", rt->rows);
- return;
- }
-#endif
if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
buf = keytable[keycode];
len = strlen(keytable[keycode]);
}
while (len > 0) {
- int res = write(rt->pty, buf, len);
+ int res = write(t->pty, buf, len);
if (res < 0 && errno != EAGAIN && errno != EINTR)
return;
setlocale(LC_ALL, "");
initscr();
start_color();
- use_default_colors();
noecho();
raw();
nodelay(stdscr, TRUE);
keypad(stdscr, TRUE);
+ curs_set(0);
+ ESCDELAY=50;
+
+ if (COLORS > 8) {
+ use_default_colors();
+ assume_default_colors(-1, -1);
+ has_default = 1;
- for (int i = -1; i < 8; i++) {
- for (int j = -1; j < 8; j++) {
- init_pair((i + 1) * 16 + j + 1, i, j);
+ for (int bg = -1; bg < 8; bg++) {
+ for (int fg = -1; fg < 8; fg++) {
+ init_pair((fg + 1) * 16 + bg + 1, fg, bg);
+ }
+ }
+ } else {
+ for (int bg = 0; bg < 8; bg++) {
+ for (int fg = 0; fg < 8; fg++) {
+ init_pair((7 - fg) * 8 + bg, fg, bg);
+ }
}
}
}
projects / apps / madtty.git / blobdiff