2679 lines
56 KiB
C
2679 lines
56 KiB
C
|
/* See LICENSE for license details. */
|
|||
|
#include <ctype.h>
|
|||
|
#include <errno.h>
|
|||
|
#include <fcntl.h>
|
|||
|
#include <limits.h>
|
|||
|
#include <pwd.h>
|
|||
|
#include <stdarg.h>
|
|||
|
#include <stdio.h>
|
|||
|
#include <stdlib.h>
|
|||
|
#include <string.h>
|
|||
|
#include <signal.h>
|
|||
|
#include <sys/ioctl.h>
|
|||
|
#include <sys/select.h>
|
|||
|
#include <sys/types.h>
|
|||
|
#include <sys/wait.h>
|
|||
|
#include <termios.h>
|
|||
|
#include <unistd.h>
|
|||
|
#include <wchar.h>
|
|||
|
|
|||
|
#include "st.h"
|
|||
|
#include "win.h"
|
|||
|
|
|||
|
#if defined(__linux)
|
|||
|
#include <pty.h>
|
|||
|
#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
|
|||
|
#include <util.h>
|
|||
|
#elif defined(__FreeBSD__) || defined(__DragonFly__)
|
|||
|
#include <libutil.h>
|
|||
|
#endif
|
|||
|
|
|||
|
/* Arbitrary sizes */
|
|||
|
#define UTF_INVALID 0xFFFD
|
|||
|
#define UTF_SIZ 4
|
|||
|
#define ESC_BUF_SIZ (128*UTF_SIZ)
|
|||
|
#define ESC_ARG_SIZ 16
|
|||
|
#define STR_BUF_SIZ ESC_BUF_SIZ
|
|||
|
#define STR_ARG_SIZ ESC_ARG_SIZ
|
|||
|
|
|||
|
/* macros */
|
|||
|
#define IS_SET(flag) ((term.mode & (flag)) != 0)
|
|||
|
#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == 0x7f)
|
|||
|
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
|
|||
|
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
|
|||
|
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
|
|||
|
|
|||
|
enum term_mode {
|
|||
|
MODE_WRAP = 1 << 0,
|
|||
|
MODE_INSERT = 1 << 1,
|
|||
|
MODE_ALTSCREEN = 1 << 2,
|
|||
|
MODE_CRLF = 1 << 3,
|
|||
|
MODE_ECHO = 1 << 4,
|
|||
|
MODE_PRINT = 1 << 5,
|
|||
|
MODE_UTF8 = 1 << 6,
|
|||
|
};
|
|||
|
|
|||
|
enum cursor_movement {
|
|||
|
CURSOR_SAVE,
|
|||
|
CURSOR_LOAD
|
|||
|
};
|
|||
|
|
|||
|
enum cursor_state {
|
|||
|
CURSOR_DEFAULT = 0,
|
|||
|
CURSOR_WRAPNEXT = 1,
|
|||
|
CURSOR_ORIGIN = 2
|
|||
|
};
|
|||
|
|
|||
|
enum charset {
|
|||
|
CS_GRAPHIC0,
|
|||
|
CS_GRAPHIC1,
|
|||
|
CS_UK,
|
|||
|
CS_USA,
|
|||
|
CS_MULTI,
|
|||
|
CS_GER,
|
|||
|
CS_FIN
|
|||
|
};
|
|||
|
|
|||
|
enum escape_state {
|
|||
|
ESC_START = 1,
|
|||
|
ESC_CSI = 2,
|
|||
|
ESC_STR = 4, /* DCS, OSC, PM, APC */
|
|||
|
ESC_ALTCHARSET = 8,
|
|||
|
ESC_STR_END = 16, /* a final string was encountered */
|
|||
|
ESC_TEST = 32, /* Enter in test mode */
|
|||
|
ESC_UTF8 = 64,
|
|||
|
};
|
|||
|
|
|||
|
typedef struct {
|
|||
|
Glyph attr; /* current char attributes */
|
|||
|
int x;
|
|||
|
int y;
|
|||
|
char state;
|
|||
|
} TCursor;
|
|||
|
|
|||
|
typedef struct {
|
|||
|
int mode;
|
|||
|
int type;
|
|||
|
int snap;
|
|||
|
/*
|
|||
|
* Selection variables:
|
|||
|
* nb – normalized coordinates of the beginning of the selection
|
|||
|
* ne – normalized coordinates of the end of the selection
|
|||
|
* ob – original coordinates of the beginning of the selection
|
|||
|
* oe – original coordinates of the end of the selection
|
|||
|
*/
|
|||
|
struct {
|
|||
|
int x, y;
|
|||
|
} nb, ne, ob, oe;
|
|||
|
|
|||
|
int alt;
|
|||
|
} Selection;
|
|||
|
|
|||
|
/* Internal representation of the screen */
|
|||
|
typedef struct {
|
|||
|
int row; /* nb row */
|
|||
|
int col; /* nb col */
|
|||
|
Line *line; /* screen */
|
|||
|
Line *alt; /* alternate screen */
|
|||
|
int *dirty; /* dirtyness of lines */
|
|||
|
TCursor c; /* cursor */
|
|||
|
int ocx; /* old cursor col */
|
|||
|
int ocy; /* old cursor row */
|
|||
|
int top; /* top scroll limit */
|
|||
|
int bot; /* bottom scroll limit */
|
|||
|
int mode; /* terminal mode flags */
|
|||
|
int esc; /* escape state flags */
|
|||
|
char trantbl[4]; /* charset table translation */
|
|||
|
int charset; /* current charset */
|
|||
|
int icharset; /* selected charset for sequence */
|
|||
|
int *tabs;
|
|||
|
Rune lastc; /* last printed char outside of sequence, 0 if control */
|
|||
|
} Term;
|
|||
|
|
|||
|
/* CSI Escape sequence structs */
|
|||
|
/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
|
|||
|
typedef struct {
|
|||
|
char buf[ESC_BUF_SIZ]; /* raw string */
|
|||
|
size_t len; /* raw string length */
|
|||
|
char priv;
|
|||
|
int arg[ESC_ARG_SIZ];
|
|||
|
int narg; /* nb of args */
|
|||
|
char mode[2];
|
|||
|
} CSIEscape;
|
|||
|
|
|||
|
/* STR Escape sequence structs */
|
|||
|
/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
|
|||
|
typedef struct {
|
|||
|
char type; /* ESC type ... */
|
|||
|
char *buf; /* allocated raw string */
|
|||
|
size_t siz; /* allocation size */
|
|||
|
size_t len; /* raw string length */
|
|||
|
char *args[STR_ARG_SIZ];
|
|||
|
int narg; /* nb of args */
|
|||
|
} STREscape;
|
|||
|
|
|||
|
static void execsh(char *, char **);
|
|||
|
static void stty(char **);
|
|||
|
static void sigchld(int);
|
|||
|
static void ttywriteraw(const char *, size_t);
|
|||
|
|
|||
|
static void csidump(void);
|
|||
|
static void csihandle(void);
|
|||
|
static void csiparse(void);
|
|||
|
static void csireset(void);
|
|||
|
static void osc_color_response(int, int, int);
|
|||
|
static int eschandle(uchar);
|
|||
|
static void strdump(void);
|
|||
|
static void strhandle(void);
|
|||
|
static void strparse(void);
|
|||
|
static void strreset(void);
|
|||
|
|
|||
|
static void tprinter(char *, size_t);
|
|||
|
static void tdumpsel(void);
|
|||
|
static void tdumpline(int);
|
|||
|
static void tdump(void);
|
|||
|
static void tclearregion(int, int, int, int);
|
|||
|
static void tcursor(int);
|
|||
|
static void tdeletechar(int);
|
|||
|
static void tdeleteline(int);
|
|||
|
static void tinsertblank(int);
|
|||
|
static void tinsertblankline(int);
|
|||
|
static int tlinelen(int);
|
|||
|
static void tmoveto(int, int);
|
|||
|
static void tmoveato(int, int);
|
|||
|
static void tnewline(int);
|
|||
|
static void tputtab(int);
|
|||
|
static void tputc(Rune);
|
|||
|
static void treset(void);
|
|||
|
static void tscrollup(int, int);
|
|||
|
static void tscrolldown(int, int);
|
|||
|
static void tsetattr(const int *, int);
|
|||
|
static void tsetchar(Rune, const Glyph *, int, int);
|
|||
|
static void tsetdirt(int, int);
|
|||
|
static void tsetscroll(int, int);
|
|||
|
static void tswapscreen(void);
|
|||
|
static void tsetmode(int, int, const int *, int);
|
|||
|
static int twrite(const char *, int, int);
|
|||
|
static void tfulldirt(void);
|
|||
|
static void tcontrolcode(uchar );
|
|||
|
static void tdectest(char );
|
|||
|
static void tdefutf8(char);
|
|||
|
static int32_t tdefcolor(const int *, int *, int);
|
|||
|
static void tdeftran(char);
|
|||
|
static void tstrsequence(uchar);
|
|||
|
|
|||
|
static void drawregion(int, int, int, int);
|
|||
|
|
|||
|
static void selnormalize(void);
|
|||
|
static void selscroll(int, int);
|
|||
|
static void selsnap(int *, int *, int);
|
|||
|
|
|||
|
static size_t utf8decode(const char *, Rune *, size_t);
|
|||
|
static Rune utf8decodebyte(char, size_t *);
|
|||
|
static char utf8encodebyte(Rune, size_t);
|
|||
|
static size_t utf8validate(Rune *, size_t);
|
|||
|
|
|||
|
static char *base64dec(const char *);
|
|||
|
static char base64dec_getc(const char **);
|
|||
|
|
|||
|
static ssize_t xwrite(int, const char *, size_t);
|
|||
|
|
|||
|
/* Globals */
|
|||
|
static Term term;
|
|||
|
static Selection sel;
|
|||
|
static CSIEscape csiescseq;
|
|||
|
static STREscape strescseq;
|
|||
|
static int iofd = 1;
|
|||
|
static int cmdfd;
|
|||
|
static pid_t pid;
|
|||
|
|
|||
|
static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
|
|||
|
static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
|
|||
|
static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
|
|||
|
static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
|
|||
|
|
|||
|
ssize_t
|
|||
|
xwrite(int fd, const char *s, size_t len)
|
|||
|
{
|
|||
|
size_t aux = len;
|
|||
|
ssize_t r;
|
|||
|
|
|||
|
while (len > 0) {
|
|||
|
r = write(fd, s, len);
|
|||
|
if (r < 0)
|
|||
|
return r;
|
|||
|
len -= r;
|
|||
|
s += r;
|
|||
|
}
|
|||
|
|
|||
|
return aux;
|
|||
|
}
|
|||
|
|
|||
|
void *
|
|||
|
xmalloc(size_t len)
|
|||
|
{
|
|||
|
void *p;
|
|||
|
|
|||
|
if (!(p = malloc(len)))
|
|||
|
die("malloc: %s\n", strerror(errno));
|
|||
|
|
|||
|
return p;
|
|||
|
}
|
|||
|
|
|||
|
void *
|
|||
|
xrealloc(void *p, size_t len)
|
|||
|
{
|
|||
|
if ((p = realloc(p, len)) == NULL)
|
|||
|
die("realloc: %s\n", strerror(errno));
|
|||
|
|
|||
|
return p;
|
|||
|
}
|
|||
|
|
|||
|
char *
|
|||
|
xstrdup(const char *s)
|
|||
|
{
|
|||
|
char *p;
|
|||
|
|
|||
|
if ((p = strdup(s)) == NULL)
|
|||
|
die("strdup: %s\n", strerror(errno));
|
|||
|
|
|||
|
return p;
|
|||
|
}
|
|||
|
|
|||
|
size_t
|
|||
|
utf8decode(const char *c, Rune *u, size_t clen)
|
|||
|
{
|
|||
|
size_t i, j, len, type;
|
|||
|
Rune udecoded;
|
|||
|
|
|||
|
*u = UTF_INVALID;
|
|||
|
if (!clen)
|
|||
|
return 0;
|
|||
|
udecoded = utf8decodebyte(c[0], &len);
|
|||
|
if (!BETWEEN(len, 1, UTF_SIZ))
|
|||
|
return 1;
|
|||
|
for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
|
|||
|
udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
|
|||
|
if (type != 0)
|
|||
|
return j;
|
|||
|
}
|
|||
|
if (j < len)
|
|||
|
return 0;
|
|||
|
*u = udecoded;
|
|||
|
utf8validate(u, len);
|
|||
|
|
|||
|
return len;
|
|||
|
}
|
|||
|
|
|||
|
Rune
|
|||
|
utf8decodebyte(char c, size_t *i)
|
|||
|
{
|
|||
|
for (*i = 0; *i < LEN(utfmask); ++(*i))
|
|||
|
if (((uchar)c & utfmask[*i]) == utfbyte[*i])
|
|||
|
return (uchar)c & ~utfmask[*i];
|
|||
|
|
|||
|
return 0;
|
|||
|
}
|
|||
|
|
|||
|
size_t
|
|||
|
utf8encode(Rune u, char *c)
|
|||
|
{
|
|||
|
size_t len, i;
|
|||
|
|
|||
|
len = utf8validate(&u, 0);
|
|||
|
if (len > UTF_SIZ)
|
|||
|
return 0;
|
|||
|
|
|||
|
for (i = len - 1; i != 0; --i) {
|
|||
|
c[i] = utf8encodebyte(u, 0);
|
|||
|
u >>= 6;
|
|||
|
}
|
|||
|
c[0] = utf8encodebyte(u, len);
|
|||
|
|
|||
|
return len;
|
|||
|
}
|
|||
|
|
|||
|
char
|
|||
|
utf8encodebyte(Rune u, size_t i)
|
|||
|
{
|
|||
|
return utfbyte[i] | (u & ~utfmask[i]);
|
|||
|
}
|
|||
|
|
|||
|
size_t
|
|||
|
utf8validate(Rune *u, size_t i)
|
|||
|
{
|
|||
|
if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
|
|||
|
*u = UTF_INVALID;
|
|||
|
for (i = 1; *u > utfmax[i]; ++i)
|
|||
|
;
|
|||
|
|
|||
|
return i;
|
|||
|
}
|
|||
|
|
|||
|
char
|
|||
|
base64dec_getc(const char **src)
|
|||
|
{
|
|||
|
while (**src && !isprint((unsigned char)**src))
|
|||
|
(*src)++;
|
|||
|
return **src ? *((*src)++) : '='; /* emulate padding if string ends */
|
|||
|
}
|
|||
|
|
|||
|
char *
|
|||
|
base64dec(const char *src)
|
|||
|
{
|
|||
|
size_t in_len = strlen(src);
|
|||
|
char *result, *dst;
|
|||
|
static const char base64_digits[256] = {
|
|||
|
[43] = 62, 0, 0, 0, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
|
|||
|
0, 0, 0, -1, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
|
|||
|
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0,
|
|||
|
0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
|
|||
|
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
|
|||
|
};
|
|||
|
|
|||
|
if (in_len % 4)
|
|||
|
in_len += 4 - (in_len % 4);
|
|||
|
result = dst = xmalloc(in_len / 4 * 3 + 1);
|
|||
|
while (*src) {
|
|||
|
int a = base64_digits[(unsigned char) base64dec_getc(&src)];
|
|||
|
int b = base64_digits[(unsigned char) base64dec_getc(&src)];
|
|||
|
int c = base64_digits[(unsigned char) base64dec_getc(&src)];
|
|||
|
int d = base64_digits[(unsigned char) base64dec_getc(&src)];
|
|||
|
|
|||
|
/* invalid input. 'a' can be -1, e.g. if src is "\n" (c-str) */
|
|||
|
if (a == -1 || b == -1)
|
|||
|
break;
|
|||
|
|
|||
|
*dst++ = (a << 2) | ((b & 0x30) >> 4);
|
|||
|
if (c == -1)
|
|||
|
break;
|
|||
|
*dst++ = ((b & 0x0f) << 4) | ((c & 0x3c) >> 2);
|
|||
|
if (d == -1)
|
|||
|
break;
|
|||
|
*dst++ = ((c & 0x03) << 6) | d;
|
|||
|
}
|
|||
|
*dst = '\0';
|
|||
|
return result;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selinit(void)
|
|||
|
{
|
|||
|
sel.mode = SEL_IDLE;
|
|||
|
sel.snap = 0;
|
|||
|
sel.ob.x = -1;
|
|||
|
}
|
|||
|
|
|||
|
int
|
|||
|
tlinelen(int y)
|
|||
|
{
|
|||
|
int i = term.col;
|
|||
|
|
|||
|
if (term.line[y][i - 1].mode & ATTR_WRAP)
|
|||
|
return i;
|
|||
|
|
|||
|
while (i > 0 && term.line[y][i - 1].u == ' ')
|
|||
|
--i;
|
|||
|
|
|||
|
return i;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selstart(int col, int row, int snap)
|
|||
|
{
|
|||
|
selclear();
|
|||
|
sel.mode = SEL_EMPTY;
|
|||
|
sel.type = SEL_REGULAR;
|
|||
|
sel.alt = IS_SET(MODE_ALTSCREEN);
|
|||
|
sel.snap = snap;
|
|||
|
sel.oe.x = sel.ob.x = col;
|
|||
|
sel.oe.y = sel.ob.y = row;
|
|||
|
selnormalize();
|
|||
|
|
|||
|
if (sel.snap != 0)
|
|||
|
sel.mode = SEL_READY;
|
|||
|
tsetdirt(sel.nb.y, sel.ne.y);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selextend(int col, int row, int type, int done)
|
|||
|
{
|
|||
|
int oldey, oldex, oldsby, oldsey, oldtype;
|
|||
|
|
|||
|
if (sel.mode == SEL_IDLE)
|
|||
|
return;
|
|||
|
if (done && sel.mode == SEL_EMPTY) {
|
|||
|
selclear();
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
oldey = sel.oe.y;
|
|||
|
oldex = sel.oe.x;
|
|||
|
oldsby = sel.nb.y;
|
|||
|
oldsey = sel.ne.y;
|
|||
|
oldtype = sel.type;
|
|||
|
|
|||
|
sel.oe.x = col;
|
|||
|
sel.oe.y = row;
|
|||
|
selnormalize();
|
|||
|
sel.type = type;
|
|||
|
|
|||
|
if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY)
|
|||
|
tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
|
|||
|
|
|||
|
sel.mode = done ? SEL_IDLE : SEL_READY;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selnormalize(void)
|
|||
|
{
|
|||
|
int i;
|
|||
|
|
|||
|
if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
|
|||
|
sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
|
|||
|
sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
|
|||
|
} else {
|
|||
|
sel.nb.x = MIN(sel.ob.x, sel.oe.x);
|
|||
|
sel.ne.x = MAX(sel.ob.x, sel.oe.x);
|
|||
|
}
|
|||
|
sel.nb.y = MIN(sel.ob.y, sel.oe.y);
|
|||
|
sel.ne.y = MAX(sel.ob.y, sel.oe.y);
|
|||
|
|
|||
|
selsnap(&sel.nb.x, &sel.nb.y, -1);
|
|||
|
selsnap(&sel.ne.x, &sel.ne.y, +1);
|
|||
|
|
|||
|
/* expand selection over line breaks */
|
|||
|
if (sel.type == SEL_RECTANGULAR)
|
|||
|
return;
|
|||
|
i = tlinelen(sel.nb.y);
|
|||
|
if (i < sel.nb.x)
|
|||
|
sel.nb.x = i;
|
|||
|
if (tlinelen(sel.ne.y) <= sel.ne.x)
|
|||
|
sel.ne.x = term.col - 1;
|
|||
|
}
|
|||
|
|
|||
|
int
|
|||
|
selected(int x, int y)
|
|||
|
{
|
|||
|
if (sel.mode == SEL_EMPTY || sel.ob.x == -1 ||
|
|||
|
sel.alt != IS_SET(MODE_ALTSCREEN))
|
|||
|
return 0;
|
|||
|
|
|||
|
if (sel.type == SEL_RECTANGULAR)
|
|||
|
return BETWEEN(y, sel.nb.y, sel.ne.y)
|
|||
|
&& BETWEEN(x, sel.nb.x, sel.ne.x);
|
|||
|
|
|||
|
return BETWEEN(y, sel.nb.y, sel.ne.y)
|
|||
|
&& (y != sel.nb.y || x >= sel.nb.x)
|
|||
|
&& (y != sel.ne.y || x <= sel.ne.x);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selsnap(int *x, int *y, int direction)
|
|||
|
{
|
|||
|
int newx, newy, xt, yt;
|
|||
|
int delim, prevdelim;
|
|||
|
const Glyph *gp, *prevgp;
|
|||
|
|
|||
|
switch (sel.snap) {
|
|||
|
case SNAP_WORD:
|
|||
|
/*
|
|||
|
* Snap around if the word wraps around at the end or
|
|||
|
* beginning of a line.
|
|||
|
*/
|
|||
|
prevgp = &term.line[*y][*x];
|
|||
|
prevdelim = ISDELIM(prevgp->u);
|
|||
|
for (;;) {
|
|||
|
newx = *x + direction;
|
|||
|
newy = *y;
|
|||
|
if (!BETWEEN(newx, 0, term.col - 1)) {
|
|||
|
newy += direction;
|
|||
|
newx = (newx + term.col) % term.col;
|
|||
|
if (!BETWEEN(newy, 0, term.row - 1))
|
|||
|
break;
|
|||
|
|
|||
|
if (direction > 0)
|
|||
|
yt = *y, xt = *x;
|
|||
|
else
|
|||
|
yt = newy, xt = newx;
|
|||
|
if (!(term.line[yt][xt].mode & ATTR_WRAP))
|
|||
|
break;
|
|||
|
}
|
|||
|
|
|||
|
if (newx >= tlinelen(newy))
|
|||
|
break;
|
|||
|
|
|||
|
gp = &term.line[newy][newx];
|
|||
|
delim = ISDELIM(gp->u);
|
|||
|
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|
|||
|
|| (delim && gp->u != prevgp->u)))
|
|||
|
break;
|
|||
|
|
|||
|
*x = newx;
|
|||
|
*y = newy;
|
|||
|
prevgp = gp;
|
|||
|
prevdelim = delim;
|
|||
|
}
|
|||
|
break;
|
|||
|
case SNAP_LINE:
|
|||
|
/*
|
|||
|
* Snap around if the the previous line or the current one
|
|||
|
* has set ATTR_WRAP at its end. Then the whole next or
|
|||
|
* previous line will be selected.
|
|||
|
*/
|
|||
|
*x = (direction < 0) ? 0 : term.col - 1;
|
|||
|
if (direction < 0) {
|
|||
|
for (; *y > 0; *y += direction) {
|
|||
|
if (!(term.line[*y-1][term.col-1].mode
|
|||
|
& ATTR_WRAP)) {
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
} else if (direction > 0) {
|
|||
|
for (; *y < term.row-1; *y += direction) {
|
|||
|
if (!(term.line[*y][term.col-1].mode
|
|||
|
& ATTR_WRAP)) {
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
char *
|
|||
|
getsel(void)
|
|||
|
{
|
|||
|
char *str, *ptr;
|
|||
|
int y, bufsize, lastx, linelen;
|
|||
|
const Glyph *gp, *last;
|
|||
|
|
|||
|
if (sel.ob.x == -1)
|
|||
|
return NULL;
|
|||
|
|
|||
|
bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
|
|||
|
ptr = str = xmalloc(bufsize);
|
|||
|
|
|||
|
/* append every set & selected glyph to the selection */
|
|||
|
for (y = sel.nb.y; y <= sel.ne.y; y++) {
|
|||
|
if ((linelen = tlinelen(y)) == 0) {
|
|||
|
*ptr++ = '\n';
|
|||
|
continue;
|
|||
|
}
|
|||
|
|
|||
|
if (sel.type == SEL_RECTANGULAR) {
|
|||
|
gp = &term.line[y][sel.nb.x];
|
|||
|
lastx = sel.ne.x;
|
|||
|
} else {
|
|||
|
gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
|
|||
|
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
|
|||
|
}
|
|||
|
last = &term.line[y][MIN(lastx, linelen-1)];
|
|||
|
while (last >= gp && last->u == ' ')
|
|||
|
--last;
|
|||
|
|
|||
|
for ( ; gp <= last; ++gp) {
|
|||
|
if (gp->mode & ATTR_WDUMMY)
|
|||
|
continue;
|
|||
|
|
|||
|
ptr += utf8encode(gp->u, ptr);
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* Copy and pasting of line endings is inconsistent
|
|||
|
* in the inconsistent terminal and GUI world.
|
|||
|
* The best solution seems like to produce '\n' when
|
|||
|
* something is copied from st and convert '\n' to
|
|||
|
* '\r', when something to be pasted is received by
|
|||
|
* st.
|
|||
|
* FIXME: Fix the computer world.
|
|||
|
*/
|
|||
|
if ((y < sel.ne.y || lastx >= linelen) &&
|
|||
|
(!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR))
|
|||
|
*ptr++ = '\n';
|
|||
|
}
|
|||
|
*ptr = 0;
|
|||
|
return str;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selclear(void)
|
|||
|
{
|
|||
|
if (sel.ob.x == -1)
|
|||
|
return;
|
|||
|
sel.mode = SEL_IDLE;
|
|||
|
sel.ob.x = -1;
|
|||
|
tsetdirt(sel.nb.y, sel.ne.y);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
die(const char *errstr, ...)
|
|||
|
{
|
|||
|
va_list ap;
|
|||
|
|
|||
|
va_start(ap, errstr);
|
|||
|
vfprintf(stderr, errstr, ap);
|
|||
|
va_end(ap);
|
|||
|
exit(1);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
execsh(char *cmd, char **args)
|
|||
|
{
|
|||
|
char *sh, *prog, *arg;
|
|||
|
const struct passwd *pw;
|
|||
|
|
|||
|
errno = 0;
|
|||
|
if ((pw = getpwuid(getuid())) == NULL) {
|
|||
|
if (errno)
|
|||
|
die("getpwuid: %s\n", strerror(errno));
|
|||
|
else
|
|||
|
die("who are you?\n");
|
|||
|
}
|
|||
|
|
|||
|
if ((sh = getenv("SHELL")) == NULL)
|
|||
|
sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
|
|||
|
|
|||
|
if (args) {
|
|||
|
prog = args[0];
|
|||
|
arg = NULL;
|
|||
|
} else if (scroll) {
|
|||
|
prog = scroll;
|
|||
|
arg = utmp ? utmp : sh;
|
|||
|
} else if (utmp) {
|
|||
|
prog = utmp;
|
|||
|
arg = NULL;
|
|||
|
} else {
|
|||
|
prog = sh;
|
|||
|
arg = NULL;
|
|||
|
}
|
|||
|
DEFAULT(args, ((char *[]) {prog, arg, NULL}));
|
|||
|
|
|||
|
unsetenv("COLUMNS");
|
|||
|
unsetenv("LINES");
|
|||
|
unsetenv("TERMCAP");
|
|||
|
setenv("LOGNAME", pw->pw_name, 1);
|
|||
|
setenv("USER", pw->pw_name, 1);
|
|||
|
setenv("SHELL", sh, 1);
|
|||
|
setenv("HOME", pw->pw_dir, 1);
|
|||
|
setenv("TERM", termname, 1);
|
|||
|
|
|||
|
signal(SIGCHLD, SIG_DFL);
|
|||
|
signal(SIGHUP, SIG_DFL);
|
|||
|
signal(SIGINT, SIG_DFL);
|
|||
|
signal(SIGQUIT, SIG_DFL);
|
|||
|
signal(SIGTERM, SIG_DFL);
|
|||
|
signal(SIGALRM, SIG_DFL);
|
|||
|
|
|||
|
execvp(prog, args);
|
|||
|
_exit(1);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
sigchld(int a)
|
|||
|
{
|
|||
|
int stat;
|
|||
|
pid_t p;
|
|||
|
|
|||
|
if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
|
|||
|
die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
|
|||
|
|
|||
|
if (pid != p)
|
|||
|
return;
|
|||
|
|
|||
|
if (WIFEXITED(stat) && WEXITSTATUS(stat))
|
|||
|
die("child exited with status %d\n", WEXITSTATUS(stat));
|
|||
|
else if (WIFSIGNALED(stat))
|
|||
|
die("child terminated due to signal %d\n", WTERMSIG(stat));
|
|||
|
_exit(0);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
stty(char **args)
|
|||
|
{
|
|||
|
char cmd[_POSIX_ARG_MAX], **p, *q, *s;
|
|||
|
size_t n, siz;
|
|||
|
|
|||
|
if ((n = strlen(stty_args)) > sizeof(cmd)-1)
|
|||
|
die("incorrect stty parameters\n");
|
|||
|
memcpy(cmd, stty_args, n);
|
|||
|
q = cmd + n;
|
|||
|
siz = sizeof(cmd) - n;
|
|||
|
for (p = args; p && (s = *p); ++p) {
|
|||
|
if ((n = strlen(s)) > siz-1)
|
|||
|
die("stty parameter length too long\n");
|
|||
|
*q++ = ' ';
|
|||
|
memcpy(q, s, n);
|
|||
|
q += n;
|
|||
|
siz -= n + 1;
|
|||
|
}
|
|||
|
*q = '\0';
|
|||
|
if (system(cmd) != 0)
|
|||
|
perror("Couldn't call stty");
|
|||
|
}
|
|||
|
|
|||
|
int
|
|||
|
ttynew(const char *line, char *cmd, const char *out, char **args)
|
|||
|
{
|
|||
|
int m, s;
|
|||
|
|
|||
|
if (out) {
|
|||
|
term.mode |= MODE_PRINT;
|
|||
|
iofd = (!strcmp(out, "-")) ?
|
|||
|
1 : open(out, O_WRONLY | O_CREAT, 0666);
|
|||
|
if (iofd < 0) {
|
|||
|
fprintf(stderr, "Error opening %s:%s\n",
|
|||
|
out, strerror(errno));
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
if (line) {
|
|||
|
if ((cmdfd = open(line, O_RDWR)) < 0)
|
|||
|
die("open line '%s' failed: %s\n",
|
|||
|
line, strerror(errno));
|
|||
|
dup2(cmdfd, 0);
|
|||
|
stty(args);
|
|||
|
return cmdfd;
|
|||
|
}
|
|||
|
|
|||
|
/* seems to work fine on linux, openbsd and freebsd */
|
|||
|
if (openpty(&m, &s, NULL, NULL, NULL) < 0)
|
|||
|
die("openpty failed: %s\n", strerror(errno));
|
|||
|
|
|||
|
switch (pid = fork()) {
|
|||
|
case -1:
|
|||
|
die("fork failed: %s\n", strerror(errno));
|
|||
|
break;
|
|||
|
case 0:
|
|||
|
close(iofd);
|
|||
|
close(m);
|
|||
|
setsid(); /* create a new process group */
|
|||
|
dup2(s, 0);
|
|||
|
dup2(s, 1);
|
|||
|
dup2(s, 2);
|
|||
|
if (ioctl(s, TIOCSCTTY, NULL) < 0)
|
|||
|
die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
|
|||
|
if (s > 2)
|
|||
|
close(s);
|
|||
|
#ifdef __OpenBSD__
|
|||
|
if (pledge("stdio getpw proc exec", NULL) == -1)
|
|||
|
die("pledge\n");
|
|||
|
#endif
|
|||
|
execsh(cmd, args);
|
|||
|
break;
|
|||
|
default:
|
|||
|
#ifdef __OpenBSD__
|
|||
|
if (pledge("stdio rpath tty proc", NULL) == -1)
|
|||
|
die("pledge\n");
|
|||
|
#endif
|
|||
|
close(s);
|
|||
|
cmdfd = m;
|
|||
|
signal(SIGCHLD, sigchld);
|
|||
|
break;
|
|||
|
}
|
|||
|
return cmdfd;
|
|||
|
}
|
|||
|
|
|||
|
size_t
|
|||
|
ttyread(void)
|
|||
|
{
|
|||
|
static char buf[BUFSIZ];
|
|||
|
static int buflen = 0;
|
|||
|
int ret, written;
|
|||
|
|
|||
|
/* append read bytes to unprocessed bytes */
|
|||
|
ret = read(cmdfd, buf+buflen, LEN(buf)-buflen);
|
|||
|
|
|||
|
switch (ret) {
|
|||
|
case 0:
|
|||
|
exit(0);
|
|||
|
case -1:
|
|||
|
die("couldn't read from shell: %s\n", strerror(errno));
|
|||
|
default:
|
|||
|
buflen += ret;
|
|||
|
written = twrite(buf, buflen, 0);
|
|||
|
buflen -= written;
|
|||
|
/* keep any incomplete UTF-8 byte sequence for the next call */
|
|||
|
if (buflen > 0)
|
|||
|
memmove(buf, buf + written, buflen);
|
|||
|
return ret;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
ttywrite(const char *s, size_t n, int may_echo)
|
|||
|
{
|
|||
|
const char *next;
|
|||
|
|
|||
|
if (may_echo && IS_SET(MODE_ECHO))
|
|||
|
twrite(s, n, 1);
|
|||
|
|
|||
|
if (!IS_SET(MODE_CRLF)) {
|
|||
|
ttywriteraw(s, n);
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
/* This is similar to how the kernel handles ONLCR for ttys */
|
|||
|
while (n > 0) {
|
|||
|
if (*s == '\r') {
|
|||
|
next = s + 1;
|
|||
|
ttywriteraw("\r\n", 2);
|
|||
|
} else {
|
|||
|
next = memchr(s, '\r', n);
|
|||
|
DEFAULT(next, s + n);
|
|||
|
ttywriteraw(s, next - s);
|
|||
|
}
|
|||
|
n -= next - s;
|
|||
|
s = next;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
ttywriteraw(const char *s, size_t n)
|
|||
|
{
|
|||
|
fd_set wfd, rfd;
|
|||
|
ssize_t r;
|
|||
|
size_t lim = 256;
|
|||
|
|
|||
|
/*
|
|||
|
* Remember that we are using a pty, which might be a modem line.
|
|||
|
* Writing too much will clog the line. That's why we are doing this
|
|||
|
* dance.
|
|||
|
* FIXME: Migrate the world to Plan 9.
|
|||
|
*/
|
|||
|
while (n > 0) {
|
|||
|
FD_ZERO(&wfd);
|
|||
|
FD_ZERO(&rfd);
|
|||
|
FD_SET(cmdfd, &wfd);
|
|||
|
FD_SET(cmdfd, &rfd);
|
|||
|
|
|||
|
/* Check if we can write. */
|
|||
|
if (pselect(cmdfd+1, &rfd, &wfd, NULL, NULL, NULL) < 0) {
|
|||
|
if (errno == EINTR)
|
|||
|
continue;
|
|||
|
die("select failed: %s\n", strerror(errno));
|
|||
|
}
|
|||
|
if (FD_ISSET(cmdfd, &wfd)) {
|
|||
|
/*
|
|||
|
* Only write the bytes written by ttywrite() or the
|
|||
|
* default of 256. This seems to be a reasonable value
|
|||
|
* for a serial line. Bigger values might clog the I/O.
|
|||
|
*/
|
|||
|
if ((r = write(cmdfd, s, (n < lim)? n : lim)) < 0)
|
|||
|
goto write_error;
|
|||
|
if (r < n) {
|
|||
|
/*
|
|||
|
* We weren't able to write out everything.
|
|||
|
* This means the buffer is getting full
|
|||
|
* again. Empty it.
|
|||
|
*/
|
|||
|
if (n < lim)
|
|||
|
lim = ttyread();
|
|||
|
n -= r;
|
|||
|
s += r;
|
|||
|
} else {
|
|||
|
/* All bytes have been written. */
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
if (FD_ISSET(cmdfd, &rfd))
|
|||
|
lim = ttyread();
|
|||
|
}
|
|||
|
return;
|
|||
|
|
|||
|
write_error:
|
|||
|
die("write error on tty: %s\n", strerror(errno));
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
ttyresize(int tw, int th)
|
|||
|
{
|
|||
|
struct winsize w;
|
|||
|
|
|||
|
w.ws_row = term.row;
|
|||
|
w.ws_col = term.col;
|
|||
|
w.ws_xpixel = tw;
|
|||
|
w.ws_ypixel = th;
|
|||
|
if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
|
|||
|
fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
ttyhangup(void)
|
|||
|
{
|
|||
|
/* Send SIGHUP to shell */
|
|||
|
kill(pid, SIGHUP);
|
|||
|
}
|
|||
|
|
|||
|
int
|
|||
|
tattrset(int attr)
|
|||
|
{
|
|||
|
int i, j;
|
|||
|
|
|||
|
for (i = 0; i < term.row-1; i++) {
|
|||
|
for (j = 0; j < term.col-1; j++) {
|
|||
|
if (term.line[i][j].mode & attr)
|
|||
|
return 1;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
return 0;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetdirt(int top, int bot)
|
|||
|
{
|
|||
|
int i;
|
|||
|
|
|||
|
LIMIT(top, 0, term.row-1);
|
|||
|
LIMIT(bot, 0, term.row-1);
|
|||
|
|
|||
|
for (i = top; i <= bot; i++)
|
|||
|
term.dirty[i] = 1;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetdirtattr(int attr)
|
|||
|
{
|
|||
|
int i, j;
|
|||
|
|
|||
|
for (i = 0; i < term.row-1; i++) {
|
|||
|
for (j = 0; j < term.col-1; j++) {
|
|||
|
if (term.line[i][j].mode & attr) {
|
|||
|
tsetdirt(i, i);
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tfulldirt(void)
|
|||
|
{
|
|||
|
tsetdirt(0, term.row-1);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tcursor(int mode)
|
|||
|
{
|
|||
|
static TCursor c[2];
|
|||
|
int alt = IS_SET(MODE_ALTSCREEN);
|
|||
|
|
|||
|
if (mode == CURSOR_SAVE) {
|
|||
|
c[alt] = term.c;
|
|||
|
} else if (mode == CURSOR_LOAD) {
|
|||
|
term.c = c[alt];
|
|||
|
tmoveto(c[alt].x, c[alt].y);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
treset(void)
|
|||
|
{
|
|||
|
uint i;
|
|||
|
|
|||
|
term.c = (TCursor){{
|
|||
|
.mode = ATTR_NULL,
|
|||
|
.fg = defaultfg,
|
|||
|
.bg = defaultbg
|
|||
|
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
|
|||
|
|
|||
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
|||
|
for (i = tabspaces; i < term.col; i += tabspaces)
|
|||
|
term.tabs[i] = 1;
|
|||
|
term.top = 0;
|
|||
|
term.bot = term.row - 1;
|
|||
|
term.mode = MODE_WRAP|MODE_UTF8;
|
|||
|
memset(term.trantbl, CS_USA, sizeof(term.trantbl));
|
|||
|
term.charset = 0;
|
|||
|
|
|||
|
for (i = 0; i < 2; i++) {
|
|||
|
tmoveto(0, 0);
|
|||
|
tcursor(CURSOR_SAVE);
|
|||
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|||
|
tswapscreen();
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tnew(int col, int row)
|
|||
|
{
|
|||
|
term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
|
|||
|
tresize(col, row);
|
|||
|
treset();
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tswapscreen(void)
|
|||
|
{
|
|||
|
Line *tmp = term.line;
|
|||
|
|
|||
|
term.line = term.alt;
|
|||
|
term.alt = tmp;
|
|||
|
term.mode ^= MODE_ALTSCREEN;
|
|||
|
tfulldirt();
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tscrolldown(int orig, int n)
|
|||
|
{
|
|||
|
int i;
|
|||
|
Line temp;
|
|||
|
|
|||
|
LIMIT(n, 0, term.bot-orig+1);
|
|||
|
|
|||
|
tsetdirt(orig, term.bot-n);
|
|||
|
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
|||
|
|
|||
|
for (i = term.bot; i >= orig+n; i--) {
|
|||
|
temp = term.line[i];
|
|||
|
term.line[i] = term.line[i-n];
|
|||
|
term.line[i-n] = temp;
|
|||
|
}
|
|||
|
|
|||
|
selscroll(orig, n);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tscrollup(int orig, int n)
|
|||
|
{
|
|||
|
int i;
|
|||
|
Line temp;
|
|||
|
|
|||
|
LIMIT(n, 0, term.bot-orig+1);
|
|||
|
|
|||
|
tclearregion(0, orig, term.col-1, orig+n-1);
|
|||
|
tsetdirt(orig+n, term.bot);
|
|||
|
|
|||
|
for (i = orig; i <= term.bot-n; i++) {
|
|||
|
temp = term.line[i];
|
|||
|
term.line[i] = term.line[i+n];
|
|||
|
term.line[i+n] = temp;
|
|||
|
}
|
|||
|
|
|||
|
selscroll(orig, -n);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
selscroll(int orig, int n)
|
|||
|
{
|
|||
|
if (sel.ob.x == -1 || sel.alt != IS_SET(MODE_ALTSCREEN))
|
|||
|
return;
|
|||
|
|
|||
|
if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
|
|||
|
selclear();
|
|||
|
} else if (BETWEEN(sel.nb.y, orig, term.bot)) {
|
|||
|
sel.ob.y += n;
|
|||
|
sel.oe.y += n;
|
|||
|
if (sel.ob.y < term.top || sel.ob.y > term.bot ||
|
|||
|
sel.oe.y < term.top || sel.oe.y > term.bot) {
|
|||
|
selclear();
|
|||
|
} else {
|
|||
|
selnormalize();
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tnewline(int first_col)
|
|||
|
{
|
|||
|
int y = term.c.y;
|
|||
|
|
|||
|
if (y == term.bot) {
|
|||
|
tscrollup(term.top, 1);
|
|||
|
} else {
|
|||
|
y++;
|
|||
|
}
|
|||
|
tmoveto(first_col ? 0 : term.c.x, y);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
csiparse(void)
|
|||
|
{
|
|||
|
char *p = csiescseq.buf, *np;
|
|||
|
long int v;
|
|||
|
int sep = ';'; /* colon or semi-colon, but not both */
|
|||
|
|
|||
|
csiescseq.narg = 0;
|
|||
|
if (*p == '?') {
|
|||
|
csiescseq.priv = 1;
|
|||
|
p++;
|
|||
|
}
|
|||
|
|
|||
|
csiescseq.buf[csiescseq.len] = '\0';
|
|||
|
while (p < csiescseq.buf+csiescseq.len) {
|
|||
|
np = NULL;
|
|||
|
v = strtol(p, &np, 10);
|
|||
|
if (np == p)
|
|||
|
v = 0;
|
|||
|
if (v == LONG_MAX || v == LONG_MIN)
|
|||
|
v = -1;
|
|||
|
csiescseq.arg[csiescseq.narg++] = v;
|
|||
|
p = np;
|
|||
|
if (sep == ';' && *p == ':')
|
|||
|
sep = ':'; /* allow override to colon once */
|
|||
|
if (*p != sep || csiescseq.narg == ESC_ARG_SIZ)
|
|||
|
break;
|
|||
|
p++;
|
|||
|
}
|
|||
|
csiescseq.mode[0] = *p++;
|
|||
|
csiescseq.mode[1] = (p < csiescseq.buf+csiescseq.len) ? *p : '\0';
|
|||
|
}
|
|||
|
|
|||
|
/* for absolute user moves, when decom is set */
|
|||
|
void
|
|||
|
tmoveato(int x, int y)
|
|||
|
{
|
|||
|
tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tmoveto(int x, int y)
|
|||
|
{
|
|||
|
int miny, maxy;
|
|||
|
|
|||
|
if (term.c.state & CURSOR_ORIGIN) {
|
|||
|
miny = term.top;
|
|||
|
maxy = term.bot;
|
|||
|
} else {
|
|||
|
miny = 0;
|
|||
|
maxy = term.row - 1;
|
|||
|
}
|
|||
|
term.c.state &= ~CURSOR_WRAPNEXT;
|
|||
|
term.c.x = LIMIT(x, 0, term.col-1);
|
|||
|
term.c.y = LIMIT(y, miny, maxy);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetchar(Rune u, const Glyph *attr, int x, int y)
|
|||
|
{
|
|||
|
static const char *vt100_0[62] = { /* 0x41 - 0x7e */
|
|||
|
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
|
|||
|
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
|
|||
|
0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
|
|||
|
0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
|
|||
|
"◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
|
|||
|
"", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
|
|||
|
"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
|
|||
|
"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
|
|||
|
};
|
|||
|
|
|||
|
/*
|
|||
|
* The table is proudly stolen from rxvt.
|
|||
|
*/
|
|||
|
if (term.trantbl[term.charset] == CS_GRAPHIC0 &&
|
|||
|
BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
|
|||
|
utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
|
|||
|
|
|||
|
if (term.line[y][x].mode & ATTR_WIDE) {
|
|||
|
if (x+1 < term.col) {
|
|||
|
term.line[y][x+1].u = ' ';
|
|||
|
term.line[y][x+1].mode &= ~ATTR_WDUMMY;
|
|||
|
}
|
|||
|
} else if (term.line[y][x].mode & ATTR_WDUMMY) {
|
|||
|
term.line[y][x-1].u = ' ';
|
|||
|
term.line[y][x-1].mode &= ~ATTR_WIDE;
|
|||
|
}
|
|||
|
|
|||
|
term.dirty[y] = 1;
|
|||
|
term.line[y][x] = *attr;
|
|||
|
term.line[y][x].u = u;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tclearregion(int x1, int y1, int x2, int y2)
|
|||
|
{
|
|||
|
int x, y, temp;
|
|||
|
Glyph *gp;
|
|||
|
|
|||
|
if (x1 > x2)
|
|||
|
temp = x1, x1 = x2, x2 = temp;
|
|||
|
if (y1 > y2)
|
|||
|
temp = y1, y1 = y2, y2 = temp;
|
|||
|
|
|||
|
LIMIT(x1, 0, term.col-1);
|
|||
|
LIMIT(x2, 0, term.col-1);
|
|||
|
LIMIT(y1, 0, term.row-1);
|
|||
|
LIMIT(y2, 0, term.row-1);
|
|||
|
|
|||
|
for (y = y1; y <= y2; y++) {
|
|||
|
term.dirty[y] = 1;
|
|||
|
for (x = x1; x <= x2; x++) {
|
|||
|
gp = &term.line[y][x];
|
|||
|
if (selected(x, y))
|
|||
|
selclear();
|
|||
|
gp->fg = term.c.attr.fg;
|
|||
|
gp->bg = term.c.attr.bg;
|
|||
|
gp->mode = 0;
|
|||
|
gp->u = ' ';
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdeletechar(int n)
|
|||
|
{
|
|||
|
int dst, src, size;
|
|||
|
Glyph *line;
|
|||
|
|
|||
|
LIMIT(n, 0, term.col - term.c.x);
|
|||
|
|
|||
|
dst = term.c.x;
|
|||
|
src = term.c.x + n;
|
|||
|
size = term.col - src;
|
|||
|
line = term.line[term.c.y];
|
|||
|
|
|||
|
memmove(&line[dst], &line[src], size * sizeof(Glyph));
|
|||
|
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tinsertblank(int n)
|
|||
|
{
|
|||
|
int dst, src, size;
|
|||
|
Glyph *line;
|
|||
|
|
|||
|
LIMIT(n, 0, term.col - term.c.x);
|
|||
|
|
|||
|
dst = term.c.x + n;
|
|||
|
src = term.c.x;
|
|||
|
size = term.col - dst;
|
|||
|
line = term.line[term.c.y];
|
|||
|
|
|||
|
memmove(&line[dst], &line[src], size * sizeof(Glyph));
|
|||
|
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tinsertblankline(int n)
|
|||
|
{
|
|||
|
if (BETWEEN(term.c.y, term.top, term.bot))
|
|||
|
tscrolldown(term.c.y, n);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdeleteline(int n)
|
|||
|
{
|
|||
|
if (BETWEEN(term.c.y, term.top, term.bot))
|
|||
|
tscrollup(term.c.y, n);
|
|||
|
}
|
|||
|
|
|||
|
int32_t
|
|||
|
tdefcolor(const int *attr, int *npar, int l)
|
|||
|
{
|
|||
|
int32_t idx = -1;
|
|||
|
uint r, g, b;
|
|||
|
|
|||
|
switch (attr[*npar + 1]) {
|
|||
|
case 2: /* direct color in RGB space */
|
|||
|
if (*npar + 4 >= l) {
|
|||
|
fprintf(stderr,
|
|||
|
"erresc(38): Incorrect number of parameters (%d)\n",
|
|||
|
*npar);
|
|||
|
break;
|
|||
|
}
|
|||
|
r = attr[*npar + 2];
|
|||
|
g = attr[*npar + 3];
|
|||
|
b = attr[*npar + 4];
|
|||
|
*npar += 4;
|
|||
|
if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
|
|||
|
fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n",
|
|||
|
r, g, b);
|
|||
|
else
|
|||
|
idx = TRUECOLOR(r, g, b);
|
|||
|
break;
|
|||
|
case 5: /* indexed color */
|
|||
|
if (*npar + 2 >= l) {
|
|||
|
fprintf(stderr,
|
|||
|
"erresc(38): Incorrect number of parameters (%d)\n",
|
|||
|
*npar);
|
|||
|
break;
|
|||
|
}
|
|||
|
*npar += 2;
|
|||
|
if (!BETWEEN(attr[*npar], 0, 255))
|
|||
|
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
|
|||
|
else
|
|||
|
idx = attr[*npar];
|
|||
|
break;
|
|||
|
case 0: /* implemented defined (only foreground) */
|
|||
|
case 1: /* transparent */
|
|||
|
case 3: /* direct color in CMY space */
|
|||
|
case 4: /* direct color in CMYK space */
|
|||
|
default:
|
|||
|
fprintf(stderr,
|
|||
|
"erresc(38): gfx attr %d unknown\n", attr[*npar]);
|
|||
|
break;
|
|||
|
}
|
|||
|
|
|||
|
return idx;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetattr(const int *attr, int l)
|
|||
|
{
|
|||
|
int i;
|
|||
|
int32_t idx;
|
|||
|
|
|||
|
for (i = 0; i < l; i++) {
|
|||
|
switch (attr[i]) {
|
|||
|
case 0:
|
|||
|
term.c.attr.mode &= ~(
|
|||
|
ATTR_BOLD |
|
|||
|
ATTR_FAINT |
|
|||
|
ATTR_ITALIC |
|
|||
|
ATTR_UNDERLINE |
|
|||
|
ATTR_BLINK |
|
|||
|
ATTR_REVERSE |
|
|||
|
ATTR_INVISIBLE |
|
|||
|
ATTR_STRUCK );
|
|||
|
term.c.attr.fg = defaultfg;
|
|||
|
term.c.attr.bg = defaultbg;
|
|||
|
break;
|
|||
|
case 1:
|
|||
|
term.c.attr.mode |= ATTR_BOLD;
|
|||
|
break;
|
|||
|
case 2:
|
|||
|
term.c.attr.mode |= ATTR_FAINT;
|
|||
|
break;
|
|||
|
case 3:
|
|||
|
term.c.attr.mode |= ATTR_ITALIC;
|
|||
|
break;
|
|||
|
case 4:
|
|||
|
term.c.attr.mode |= ATTR_UNDERLINE;
|
|||
|
break;
|
|||
|
case 5: /* slow blink */
|
|||
|
/* FALLTHROUGH */
|
|||
|
case 6: /* rapid blink */
|
|||
|
term.c.attr.mode |= ATTR_BLINK;
|
|||
|
break;
|
|||
|
case 7:
|
|||
|
term.c.attr.mode |= ATTR_REVERSE;
|
|||
|
break;
|
|||
|
case 8:
|
|||
|
term.c.attr.mode |= ATTR_INVISIBLE;
|
|||
|
break;
|
|||
|
case 9:
|
|||
|
term.c.attr.mode |= ATTR_STRUCK;
|
|||
|
break;
|
|||
|
case 22:
|
|||
|
term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
|
|||
|
break;
|
|||
|
case 23:
|
|||
|
term.c.attr.mode &= ~ATTR_ITALIC;
|
|||
|
break;
|
|||
|
case 24:
|
|||
|
term.c.attr.mode &= ~ATTR_UNDERLINE;
|
|||
|
break;
|
|||
|
case 25:
|
|||
|
term.c.attr.mode &= ~ATTR_BLINK;
|
|||
|
break;
|
|||
|
case 27:
|
|||
|
term.c.attr.mode &= ~ATTR_REVERSE;
|
|||
|
break;
|
|||
|
case 28:
|
|||
|
term.c.attr.mode &= ~ATTR_INVISIBLE;
|
|||
|
break;
|
|||
|
case 29:
|
|||
|
term.c.attr.mode &= ~ATTR_STRUCK;
|
|||
|
break;
|
|||
|
case 38:
|
|||
|
if ((idx = tdefcolor(attr, &i, l)) >= 0)
|
|||
|
term.c.attr.fg = idx;
|
|||
|
break;
|
|||
|
case 39:
|
|||
|
term.c.attr.fg = defaultfg;
|
|||
|
break;
|
|||
|
case 48:
|
|||
|
if ((idx = tdefcolor(attr, &i, l)) >= 0)
|
|||
|
term.c.attr.bg = idx;
|
|||
|
break;
|
|||
|
case 49:
|
|||
|
term.c.attr.bg = defaultbg;
|
|||
|
break;
|
|||
|
default:
|
|||
|
if (BETWEEN(attr[i], 30, 37)) {
|
|||
|
term.c.attr.fg = attr[i] - 30;
|
|||
|
} else if (BETWEEN(attr[i], 40, 47)) {
|
|||
|
term.c.attr.bg = attr[i] - 40;
|
|||
|
} else if (BETWEEN(attr[i], 90, 97)) {
|
|||
|
term.c.attr.fg = attr[i] - 90 + 8;
|
|||
|
} else if (BETWEEN(attr[i], 100, 107)) {
|
|||
|
term.c.attr.bg = attr[i] - 100 + 8;
|
|||
|
} else {
|
|||
|
fprintf(stderr,
|
|||
|
"erresc(default): gfx attr %d unknown\n",
|
|||
|
attr[i]);
|
|||
|
csidump();
|
|||
|
}
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetscroll(int t, int b)
|
|||
|
{
|
|||
|
int temp;
|
|||
|
|
|||
|
LIMIT(t, 0, term.row-1);
|
|||
|
LIMIT(b, 0, term.row-1);
|
|||
|
if (t > b) {
|
|||
|
temp = t;
|
|||
|
t = b;
|
|||
|
b = temp;
|
|||
|
}
|
|||
|
term.top = t;
|
|||
|
term.bot = b;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tsetmode(int priv, int set, const int *args, int narg)
|
|||
|
{
|
|||
|
int alt; const int *lim;
|
|||
|
|
|||
|
for (lim = args + narg; args < lim; ++args) {
|
|||
|
if (priv) {
|
|||
|
switch (*args) {
|
|||
|
case 1: /* DECCKM -- Cursor key */
|
|||
|
xsetmode(set, MODE_APPCURSOR);
|
|||
|
break;
|
|||
|
case 5: /* DECSCNM -- Reverse video */
|
|||
|
xsetmode(set, MODE_REVERSE);
|
|||
|
break;
|
|||
|
case 6: /* DECOM -- Origin */
|
|||
|
MODBIT(term.c.state, set, CURSOR_ORIGIN);
|
|||
|
tmoveato(0, 0);
|
|||
|
break;
|
|||
|
case 7: /* DECAWM -- Auto wrap */
|
|||
|
MODBIT(term.mode, set, MODE_WRAP);
|
|||
|
break;
|
|||
|
case 0: /* Error (IGNORED) */
|
|||
|
case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
|
|||
|
case 3: /* DECCOLM -- Column (IGNORED) */
|
|||
|
case 4: /* DECSCLM -- Scroll (IGNORED) */
|
|||
|
case 8: /* DECARM -- Auto repeat (IGNORED) */
|
|||
|
case 18: /* DECPFF -- Printer feed (IGNORED) */
|
|||
|
case 19: /* DECPEX -- Printer extent (IGNORED) */
|
|||
|
case 42: /* DECNRCM -- National characters (IGNORED) */
|
|||
|
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
|||
|
break;
|
|||
|
case 25: /* DECTCEM -- Text Cursor Enable Mode */
|
|||
|
xsetmode(!set, MODE_HIDE);
|
|||
|
break;
|
|||
|
case 9: /* X10 mouse compatibility mode */
|
|||
|
xsetpointermotion(0);
|
|||
|
xsetmode(0, MODE_MOUSE);
|
|||
|
xsetmode(set, MODE_MOUSEX10);
|
|||
|
break;
|
|||
|
case 1000: /* 1000: report button press */
|
|||
|
xsetpointermotion(0);
|
|||
|
xsetmode(0, MODE_MOUSE);
|
|||
|
xsetmode(set, MODE_MOUSEBTN);
|
|||
|
break;
|
|||
|
case 1002: /* 1002: report motion on button press */
|
|||
|
xsetpointermotion(0);
|
|||
|
xsetmode(0, MODE_MOUSE);
|
|||
|
xsetmode(set, MODE_MOUSEMOTION);
|
|||
|
break;
|
|||
|
case 1003: /* 1003: enable all mouse motions */
|
|||
|
xsetpointermotion(set);
|
|||
|
xsetmode(0, MODE_MOUSE);
|
|||
|
xsetmode(set, MODE_MOUSEMANY);
|
|||
|
break;
|
|||
|
case 1004: /* 1004: send focus events to tty */
|
|||
|
xsetmode(set, MODE_FOCUS);
|
|||
|
break;
|
|||
|
case 1006: /* 1006: extended reporting mode */
|
|||
|
xsetmode(set, MODE_MOUSESGR);
|
|||
|
break;
|
|||
|
case 1034:
|
|||
|
xsetmode(set, MODE_8BIT);
|
|||
|
break;
|
|||
|
case 1049: /* swap screen & set/restore cursor as xterm */
|
|||
|
if (!allowaltscreen)
|
|||
|
break;
|
|||
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
|||
|
/* FALLTHROUGH */
|
|||
|
case 47: /* swap screen */
|
|||
|
case 1047:
|
|||
|
if (!allowaltscreen)
|
|||
|
break;
|
|||
|
alt = IS_SET(MODE_ALTSCREEN);
|
|||
|
if (alt) {
|
|||
|
tclearregion(0, 0, term.col-1,
|
|||
|
term.row-1);
|
|||
|
}
|
|||
|
if (set ^ alt) /* set is always 1 or 0 */
|
|||
|
tswapscreen();
|
|||
|
if (*args != 1049)
|
|||
|
break;
|
|||
|
/* FALLTHROUGH */
|
|||
|
case 1048:
|
|||
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
|||
|
break;
|
|||
|
case 2004: /* 2004: bracketed paste mode */
|
|||
|
xsetmode(set, MODE_BRCKTPASTE);
|
|||
|
break;
|
|||
|
/* Not implemented mouse modes. See comments there. */
|
|||
|
case 1001: /* mouse highlight mode; can hang the
|
|||
|
terminal by design when implemented. */
|
|||
|
case 1005: /* UTF-8 mouse mode; will confuse
|
|||
|
applications not supporting UTF-8
|
|||
|
and luit. */
|
|||
|
case 1015: /* urxvt mangled mouse mode; incompatible
|
|||
|
and can be mistaken for other control
|
|||
|
codes. */
|
|||
|
break;
|
|||
|
default:
|
|||
|
fprintf(stderr,
|
|||
|
"erresc: unknown private set/reset mode %d\n",
|
|||
|
*args);
|
|||
|
break;
|
|||
|
}
|
|||
|
} else {
|
|||
|
switch (*args) {
|
|||
|
case 0: /* Error (IGNORED) */
|
|||
|
break;
|
|||
|
case 2:
|
|||
|
xsetmode(set, MODE_KBDLOCK);
|
|||
|
break;
|
|||
|
case 4: /* IRM -- Insertion-replacement */
|
|||
|
MODBIT(term.mode, set, MODE_INSERT);
|
|||
|
break;
|
|||
|
case 12: /* SRM -- Send/Receive */
|
|||
|
MODBIT(term.mode, !set, MODE_ECHO);
|
|||
|
break;
|
|||
|
case 20: /* LNM -- Linefeed/new line */
|
|||
|
MODBIT(term.mode, set, MODE_CRLF);
|
|||
|
break;
|
|||
|
default:
|
|||
|
fprintf(stderr,
|
|||
|
"erresc: unknown set/reset mode %d\n",
|
|||
|
*args);
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
csihandle(void)
|
|||
|
{
|
|||
|
char buf[40];
|
|||
|
int len;
|
|||
|
|
|||
|
switch (csiescseq.mode[0]) {
|
|||
|
default:
|
|||
|
unknown:
|
|||
|
fprintf(stderr, "erresc: unknown csi ");
|
|||
|
csidump();
|
|||
|
/* die(""); */
|
|||
|
break;
|
|||
|
case '@': /* ICH -- Insert <n> blank char */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tinsertblank(csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'A': /* CUU -- Cursor <n> Up */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'B': /* CUD -- Cursor <n> Down */
|
|||
|
case 'e': /* VPR --Cursor <n> Down */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'i': /* MC -- Media Copy */
|
|||
|
switch (csiescseq.arg[0]) {
|
|||
|
case 0:
|
|||
|
tdump();
|
|||
|
break;
|
|||
|
case 1:
|
|||
|
tdumpline(term.c.y);
|
|||
|
break;
|
|||
|
case 2:
|
|||
|
tdumpsel();
|
|||
|
break;
|
|||
|
case 4:
|
|||
|
term.mode &= ~MODE_PRINT;
|
|||
|
break;
|
|||
|
case 5:
|
|||
|
term.mode |= MODE_PRINT;
|
|||
|
break;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'c': /* DA -- Device Attributes */
|
|||
|
if (csiescseq.arg[0] == 0)
|
|||
|
ttywrite(vtiden, strlen(vtiden), 0);
|
|||
|
break;
|
|||
|
case 'b': /* REP -- if last char is printable print it <n> more times */
|
|||
|
LIMIT(csiescseq.arg[0], 1, 65535);
|
|||
|
if (term.lastc)
|
|||
|
while (csiescseq.arg[0]-- > 0)
|
|||
|
tputc(term.lastc);
|
|||
|
break;
|
|||
|
case 'C': /* CUF -- Cursor <n> Forward */
|
|||
|
case 'a': /* HPR -- Cursor <n> Forward */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
|
|||
|
break;
|
|||
|
case 'D': /* CUB -- Cursor <n> Backward */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
|
|||
|
break;
|
|||
|
case 'E': /* CNL -- Cursor <n> Down and first col */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(0, term.c.y+csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'F': /* CPL -- Cursor <n> Up and first col */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(0, term.c.y-csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'g': /* TBC -- Tabulation clear */
|
|||
|
switch (csiescseq.arg[0]) {
|
|||
|
case 0: /* clear current tab stop */
|
|||
|
term.tabs[term.c.x] = 0;
|
|||
|
break;
|
|||
|
case 3: /* clear all the tabs */
|
|||
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
|||
|
break;
|
|||
|
default:
|
|||
|
goto unknown;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'G': /* CHA -- Move to <col> */
|
|||
|
case '`': /* HPA */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveto(csiescseq.arg[0]-1, term.c.y);
|
|||
|
break;
|
|||
|
case 'H': /* CUP -- Move to <row> <col> */
|
|||
|
case 'f': /* HVP */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
DEFAULT(csiescseq.arg[1], 1);
|
|||
|
tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
|
|||
|
break;
|
|||
|
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tputtab(csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'J': /* ED -- Clear screen */
|
|||
|
switch (csiescseq.arg[0]) {
|
|||
|
case 0: /* below */
|
|||
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
|||
|
if (term.c.y < term.row-1) {
|
|||
|
tclearregion(0, term.c.y+1, term.col-1,
|
|||
|
term.row-1);
|
|||
|
}
|
|||
|
break;
|
|||
|
case 1: /* above */
|
|||
|
if (term.c.y > 1)
|
|||
|
tclearregion(0, 0, term.col-1, term.c.y-1);
|
|||
|
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
|||
|
break;
|
|||
|
case 2: /* all */
|
|||
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|||
|
break;
|
|||
|
default:
|
|||
|
goto unknown;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'K': /* EL -- Clear line */
|
|||
|
switch (csiescseq.arg[0]) {
|
|||
|
case 0: /* right */
|
|||
|
tclearregion(term.c.x, term.c.y, term.col-1,
|
|||
|
term.c.y);
|
|||
|
break;
|
|||
|
case 1: /* left */
|
|||
|
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
|||
|
break;
|
|||
|
case 2: /* all */
|
|||
|
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
|||
|
break;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'S': /* SU -- Scroll <n> line up */
|
|||
|
if (csiescseq.priv) break;
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tscrollup(term.top, csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'T': /* SD -- Scroll <n> line down */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tscrolldown(term.top, csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'L': /* IL -- Insert <n> blank lines */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tinsertblankline(csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'l': /* RM -- Reset Mode */
|
|||
|
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
|
|||
|
break;
|
|||
|
case 'M': /* DL -- Delete <n> lines */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tdeleteline(csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'X': /* ECH -- Erase <n> char */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tclearregion(term.c.x, term.c.y,
|
|||
|
term.c.x + csiescseq.arg[0] - 1, term.c.y);
|
|||
|
break;
|
|||
|
case 'P': /* DCH -- Delete <n> char */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tdeletechar(csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tputtab(-csiescseq.arg[0]);
|
|||
|
break;
|
|||
|
case 'd': /* VPA -- Move to <row> */
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
tmoveato(term.c.x, csiescseq.arg[0]-1);
|
|||
|
break;
|
|||
|
case 'h': /* SM -- Set terminal mode */
|
|||
|
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
|
|||
|
break;
|
|||
|
case 'm': /* SGR -- Terminal attribute (color) */
|
|||
|
tsetattr(csiescseq.arg, csiescseq.narg);
|
|||
|
break;
|
|||
|
case 'n': /* DSR -- Device Status Report */
|
|||
|
switch (csiescseq.arg[0]) {
|
|||
|
case 5: /* Status Report "OK" `0n` */
|
|||
|
ttywrite("\033[0n", sizeof("\033[0n") - 1, 0);
|
|||
|
break;
|
|||
|
case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
|
|||
|
len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
|
|||
|
term.c.y+1, term.c.x+1);
|
|||
|
ttywrite(buf, len, 0);
|
|||
|
break;
|
|||
|
default:
|
|||
|
goto unknown;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'r': /* DECSTBM -- Set Scrolling Region */
|
|||
|
if (csiescseq.priv) {
|
|||
|
goto unknown;
|
|||
|
} else {
|
|||
|
DEFAULT(csiescseq.arg[0], 1);
|
|||
|
DEFAULT(csiescseq.arg[1], term.row);
|
|||
|
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
|
|||
|
tmoveato(0, 0);
|
|||
|
}
|
|||
|
break;
|
|||
|
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
|
|||
|
tcursor(CURSOR_SAVE);
|
|||
|
break;
|
|||
|
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
|
|||
|
tcursor(CURSOR_LOAD);
|
|||
|
break;
|
|||
|
case ' ':
|
|||
|
switch (csiescseq.mode[1]) {
|
|||
|
case 'q': /* DECSCUSR -- Set Cursor Style */
|
|||
|
if (xsetcursor(csiescseq.arg[0]))
|
|||
|
goto unknown;
|
|||
|
break;
|
|||
|
default:
|
|||
|
goto unknown;
|
|||
|
}
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
csidump(void)
|
|||
|
{
|
|||
|
size_t i;
|
|||
|
uint c;
|
|||
|
|
|||
|
fprintf(stderr, "ESC[");
|
|||
|
for (i = 0; i < csiescseq.len; i++) {
|
|||
|
c = csiescseq.buf[i] & 0xff;
|
|||
|
if (isprint(c)) {
|
|||
|
putc(c, stderr);
|
|||
|
} else if (c == '\n') {
|
|||
|
fprintf(stderr, "(\\n)");
|
|||
|
} else if (c == '\r') {
|
|||
|
fprintf(stderr, "(\\r)");
|
|||
|
} else if (c == 0x1b) {
|
|||
|
fprintf(stderr, "(\\e)");
|
|||
|
} else {
|
|||
|
fprintf(stderr, "(%02x)", c);
|
|||
|
}
|
|||
|
}
|
|||
|
putc('\n', stderr);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
csireset(void)
|
|||
|
{
|
|||
|
memset(&csiescseq, 0, sizeof(csiescseq));
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
osc_color_response(int num, int index, int is_osc4)
|
|||
|
{
|
|||
|
int n;
|
|||
|
char buf[32];
|
|||
|
unsigned char r, g, b;
|
|||
|
|
|||
|
if (xgetcolor(is_osc4 ? num : index, &r, &g, &b)) {
|
|||
|
fprintf(stderr, "erresc: failed to fetch %s color %d\n",
|
|||
|
is_osc4 ? "osc4" : "osc",
|
|||
|
is_osc4 ? num : index);
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
n = snprintf(buf, sizeof buf, "\033]%s%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
|
|||
|
is_osc4 ? "4;" : "", num, r, r, g, g, b, b);
|
|||
|
if (n < 0 || n >= sizeof(buf)) {
|
|||
|
fprintf(stderr, "error: %s while printing %s response\n",
|
|||
|
n < 0 ? "snprintf failed" : "truncation occurred",
|
|||
|
is_osc4 ? "osc4" : "osc");
|
|||
|
} else {
|
|||
|
ttywrite(buf, n, 1);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
strhandle(void)
|
|||
|
{
|
|||
|
char *p = NULL, *dec;
|
|||
|
int j, narg, par;
|
|||
|
const struct { int idx; char *str; } osc_table[] = {
|
|||
|
{ defaultfg, "foreground" },
|
|||
|
{ defaultbg, "background" },
|
|||
|
{ defaultcs, "cursor" }
|
|||
|
};
|
|||
|
|
|||
|
term.esc &= ~(ESC_STR_END|ESC_STR);
|
|||
|
strparse();
|
|||
|
par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0;
|
|||
|
|
|||
|
switch (strescseq.type) {
|
|||
|
case ']': /* OSC -- Operating System Command */
|
|||
|
switch (par) {
|
|||
|
case 0:
|
|||
|
if (narg > 1) {
|
|||
|
xsettitle(strescseq.args[1]);
|
|||
|
xseticontitle(strescseq.args[1]);
|
|||
|
}
|
|||
|
return;
|
|||
|
case 1:
|
|||
|
if (narg > 1)
|
|||
|
xseticontitle(strescseq.args[1]);
|
|||
|
return;
|
|||
|
case 2:
|
|||
|
if (narg > 1)
|
|||
|
xsettitle(strescseq.args[1]);
|
|||
|
return;
|
|||
|
case 52:
|
|||
|
if (narg > 2 && allowwindowops) {
|
|||
|
dec = base64dec(strescseq.args[2]);
|
|||
|
if (dec) {
|
|||
|
xsetsel(dec);
|
|||
|
xclipcopy();
|
|||
|
} else {
|
|||
|
fprintf(stderr, "erresc: invalid base64\n");
|
|||
|
}
|
|||
|
}
|
|||
|
return;
|
|||
|
case 10:
|
|||
|
case 11:
|
|||
|
case 12:
|
|||
|
if (narg < 2)
|
|||
|
break;
|
|||
|
p = strescseq.args[1];
|
|||
|
if ((j = par - 10) < 0 || j >= LEN(osc_table))
|
|||
|
break; /* shouldn't be possible */
|
|||
|
|
|||
|
if (!strcmp(p, "?")) {
|
|||
|
osc_color_response(par, osc_table[j].idx, 0);
|
|||
|
} else if (xsetcolorname(osc_table[j].idx, p)) {
|
|||
|
fprintf(stderr, "erresc: invalid %s color: %s\n",
|
|||
|
osc_table[j].str, p);
|
|||
|
} else {
|
|||
|
tfulldirt();
|
|||
|
}
|
|||
|
return;
|
|||
|
case 4: /* color set */
|
|||
|
if (narg < 3)
|
|||
|
break;
|
|||
|
p = strescseq.args[2];
|
|||
|
/* FALLTHROUGH */
|
|||
|
case 104: /* color reset */
|
|||
|
j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
|
|||
|
|
|||
|
if (p && !strcmp(p, "?")) {
|
|||
|
osc_color_response(j, 0, 1);
|
|||
|
} else if (xsetcolorname(j, p)) {
|
|||
|
if (par == 104 && narg <= 1) {
|
|||
|
xloadcols();
|
|||
|
return; /* color reset without parameter */
|
|||
|
}
|
|||
|
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
|
|||
|
j, p ? p : "(null)");
|
|||
|
} else {
|
|||
|
/*
|
|||
|
* TODO if defaultbg color is changed, borders
|
|||
|
* are dirty
|
|||
|
*/
|
|||
|
tfulldirt();
|
|||
|
}
|
|||
|
return;
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'k': /* old title set compatibility */
|
|||
|
xsettitle(strescseq.args[0]);
|
|||
|
return;
|
|||
|
case 'P': /* DCS -- Device Control String */
|
|||
|
case '_': /* APC -- Application Program Command */
|
|||
|
case '^': /* PM -- Privacy Message */
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
fprintf(stderr, "erresc: unknown str ");
|
|||
|
strdump();
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
strparse(void)
|
|||
|
{
|
|||
|
int c;
|
|||
|
char *p = strescseq.buf;
|
|||
|
|
|||
|
strescseq.narg = 0;
|
|||
|
strescseq.buf[strescseq.len] = '\0';
|
|||
|
|
|||
|
if (*p == '\0')
|
|||
|
return;
|
|||
|
|
|||
|
while (strescseq.narg < STR_ARG_SIZ) {
|
|||
|
strescseq.args[strescseq.narg++] = p;
|
|||
|
while ((c = *p) != ';' && c != '\0')
|
|||
|
++p;
|
|||
|
if (c == '\0')
|
|||
|
return;
|
|||
|
*p++ = '\0';
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
strdump(void)
|
|||
|
{
|
|||
|
size_t i;
|
|||
|
uint c;
|
|||
|
|
|||
|
fprintf(stderr, "ESC%c", strescseq.type);
|
|||
|
for (i = 0; i < strescseq.len; i++) {
|
|||
|
c = strescseq.buf[i] & 0xff;
|
|||
|
if (c == '\0') {
|
|||
|
putc('\n', stderr);
|
|||
|
return;
|
|||
|
} else if (isprint(c)) {
|
|||
|
putc(c, stderr);
|
|||
|
} else if (c == '\n') {
|
|||
|
fprintf(stderr, "(\\n)");
|
|||
|
} else if (c == '\r') {
|
|||
|
fprintf(stderr, "(\\r)");
|
|||
|
} else if (c == 0x1b) {
|
|||
|
fprintf(stderr, "(\\e)");
|
|||
|
} else {
|
|||
|
fprintf(stderr, "(%02x)", c);
|
|||
|
}
|
|||
|
}
|
|||
|
fprintf(stderr, "ESC\\\n");
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
strreset(void)
|
|||
|
{
|
|||
|
strescseq = (STREscape){
|
|||
|
.buf = xrealloc(strescseq.buf, STR_BUF_SIZ),
|
|||
|
.siz = STR_BUF_SIZ,
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
sendbreak(const Arg *arg)
|
|||
|
{
|
|||
|
if (tcsendbreak(cmdfd, 0))
|
|||
|
perror("Error sending break");
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tprinter(char *s, size_t len)
|
|||
|
{
|
|||
|
if (iofd != -1 && xwrite(iofd, s, len) < 0) {
|
|||
|
perror("Error writing to output file");
|
|||
|
close(iofd);
|
|||
|
iofd = -1;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
toggleprinter(const Arg *arg)
|
|||
|
{
|
|||
|
term.mode ^= MODE_PRINT;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
printscreen(const Arg *arg)
|
|||
|
{
|
|||
|
tdump();
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
printsel(const Arg *arg)
|
|||
|
{
|
|||
|
tdumpsel();
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdumpsel(void)
|
|||
|
{
|
|||
|
char *ptr;
|
|||
|
|
|||
|
if ((ptr = getsel())) {
|
|||
|
tprinter(ptr, strlen(ptr));
|
|||
|
free(ptr);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdumpline(int n)
|
|||
|
{
|
|||
|
char buf[UTF_SIZ];
|
|||
|
const Glyph *bp, *end;
|
|||
|
|
|||
|
bp = &term.line[n][0];
|
|||
|
end = &bp[MIN(tlinelen(n), term.col) - 1];
|
|||
|
if (bp != end || bp->u != ' ') {
|
|||
|
for ( ; bp <= end; ++bp)
|
|||
|
tprinter(buf, utf8encode(bp->u, buf));
|
|||
|
}
|
|||
|
tprinter("\n", 1);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdump(void)
|
|||
|
{
|
|||
|
int i;
|
|||
|
|
|||
|
for (i = 0; i < term.row; ++i)
|
|||
|
tdumpline(i);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tputtab(int n)
|
|||
|
{
|
|||
|
uint x = term.c.x;
|
|||
|
|
|||
|
if (n > 0) {
|
|||
|
while (x < term.col && n--)
|
|||
|
for (++x; x < term.col && !term.tabs[x]; ++x)
|
|||
|
/* nothing */ ;
|
|||
|
} else if (n < 0) {
|
|||
|
while (x > 0 && n++)
|
|||
|
for (--x; x > 0 && !term.tabs[x]; --x)
|
|||
|
/* nothing */ ;
|
|||
|
}
|
|||
|
term.c.x = LIMIT(x, 0, term.col-1);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdefutf8(char ascii)
|
|||
|
{
|
|||
|
if (ascii == 'G')
|
|||
|
term.mode |= MODE_UTF8;
|
|||
|
else if (ascii == '@')
|
|||
|
term.mode &= ~MODE_UTF8;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdeftran(char ascii)
|
|||
|
{
|
|||
|
static char cs[] = "0B";
|
|||
|
static int vcs[] = {CS_GRAPHIC0, CS_USA};
|
|||
|
char *p;
|
|||
|
|
|||
|
if ((p = strchr(cs, ascii)) == NULL) {
|
|||
|
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
|||
|
} else {
|
|||
|
term.trantbl[term.icharset] = vcs[p - cs];
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tdectest(char c)
|
|||
|
{
|
|||
|
int x, y;
|
|||
|
|
|||
|
if (c == '8') { /* DEC screen alignment test. */
|
|||
|
for (x = 0; x < term.col; ++x) {
|
|||
|
for (y = 0; y < term.row; ++y)
|
|||
|
tsetchar('E', &term.c.attr, x, y);
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tstrsequence(uchar c)
|
|||
|
{
|
|||
|
switch (c) {
|
|||
|
case 0x90: /* DCS -- Device Control String */
|
|||
|
c = 'P';
|
|||
|
break;
|
|||
|
case 0x9f: /* APC -- Application Program Command */
|
|||
|
c = '_';
|
|||
|
break;
|
|||
|
case 0x9e: /* PM -- Privacy Message */
|
|||
|
c = '^';
|
|||
|
break;
|
|||
|
case 0x9d: /* OSC -- Operating System Command */
|
|||
|
c = ']';
|
|||
|
break;
|
|||
|
}
|
|||
|
strreset();
|
|||
|
strescseq.type = c;
|
|||
|
term.esc |= ESC_STR;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tcontrolcode(uchar ascii)
|
|||
|
{
|
|||
|
switch (ascii) {
|
|||
|
case '\t': /* HT */
|
|||
|
tputtab(1);
|
|||
|
return;
|
|||
|
case '\b': /* BS */
|
|||
|
tmoveto(term.c.x-1, term.c.y);
|
|||
|
return;
|
|||
|
case '\r': /* CR */
|
|||
|
tmoveto(0, term.c.y);
|
|||
|
return;
|
|||
|
case '\f': /* LF */
|
|||
|
case '\v': /* VT */
|
|||
|
case '\n': /* LF */
|
|||
|
/* go to first col if the mode is set */
|
|||
|
tnewline(IS_SET(MODE_CRLF));
|
|||
|
return;
|
|||
|
case '\a': /* BEL */
|
|||
|
if (term.esc & ESC_STR_END) {
|
|||
|
/* backwards compatibility to xterm */
|
|||
|
strhandle();
|
|||
|
} else {
|
|||
|
xbell();
|
|||
|
}
|
|||
|
break;
|
|||
|
case '\033': /* ESC */
|
|||
|
csireset();
|
|||
|
term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
|
|||
|
term.esc |= ESC_START;
|
|||
|
return;
|
|||
|
case '\016': /* SO (LS1 -- Locking shift 1) */
|
|||
|
case '\017': /* SI (LS0 -- Locking shift 0) */
|
|||
|
term.charset = 1 - (ascii - '\016');
|
|||
|
return;
|
|||
|
case '\032': /* SUB */
|
|||
|
tsetchar('?', &term.c.attr, term.c.x, term.c.y);
|
|||
|
/* FALLTHROUGH */
|
|||
|
case '\030': /* CAN */
|
|||
|
csireset();
|
|||
|
break;
|
|||
|
case '\005': /* ENQ (IGNORED) */
|
|||
|
case '\000': /* NUL (IGNORED) */
|
|||
|
case '\021': /* XON (IGNORED) */
|
|||
|
case '\023': /* XOFF (IGNORED) */
|
|||
|
case 0177: /* DEL (IGNORED) */
|
|||
|
return;
|
|||
|
case 0x80: /* TODO: PAD */
|
|||
|
case 0x81: /* TODO: HOP */
|
|||
|
case 0x82: /* TODO: BPH */
|
|||
|
case 0x83: /* TODO: NBH */
|
|||
|
case 0x84: /* TODO: IND */
|
|||
|
break;
|
|||
|
case 0x85: /* NEL -- Next line */
|
|||
|
tnewline(1); /* always go to first col */
|
|||
|
break;
|
|||
|
case 0x86: /* TODO: SSA */
|
|||
|
case 0x87: /* TODO: ESA */
|
|||
|
break;
|
|||
|
case 0x88: /* HTS -- Horizontal tab stop */
|
|||
|
term.tabs[term.c.x] = 1;
|
|||
|
break;
|
|||
|
case 0x89: /* TODO: HTJ */
|
|||
|
case 0x8a: /* TODO: VTS */
|
|||
|
case 0x8b: /* TODO: PLD */
|
|||
|
case 0x8c: /* TODO: PLU */
|
|||
|
case 0x8d: /* TODO: RI */
|
|||
|
case 0x8e: /* TODO: SS2 */
|
|||
|
case 0x8f: /* TODO: SS3 */
|
|||
|
case 0x91: /* TODO: PU1 */
|
|||
|
case 0x92: /* TODO: PU2 */
|
|||
|
case 0x93: /* TODO: STS */
|
|||
|
case 0x94: /* TODO: CCH */
|
|||
|
case 0x95: /* TODO: MW */
|
|||
|
case 0x96: /* TODO: SPA */
|
|||
|
case 0x97: /* TODO: EPA */
|
|||
|
case 0x98: /* TODO: SOS */
|
|||
|
case 0x99: /* TODO: SGCI */
|
|||
|
break;
|
|||
|
case 0x9a: /* DECID -- Identify Terminal */
|
|||
|
ttywrite(vtiden, strlen(vtiden), 0);
|
|||
|
break;
|
|||
|
case 0x9b: /* TODO: CSI */
|
|||
|
case 0x9c: /* TODO: ST */
|
|||
|
break;
|
|||
|
case 0x90: /* DCS -- Device Control String */
|
|||
|
case 0x9d: /* OSC -- Operating System Command */
|
|||
|
case 0x9e: /* PM -- Privacy Message */
|
|||
|
case 0x9f: /* APC -- Application Program Command */
|
|||
|
tstrsequence(ascii);
|
|||
|
return;
|
|||
|
}
|
|||
|
/* only CAN, SUB, \a and C1 chars interrupt a sequence */
|
|||
|
term.esc &= ~(ESC_STR_END|ESC_STR);
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* returns 1 when the sequence is finished and it hasn't to read
|
|||
|
* more characters for this sequence, otherwise 0
|
|||
|
*/
|
|||
|
int
|
|||
|
eschandle(uchar ascii)
|
|||
|
{
|
|||
|
switch (ascii) {
|
|||
|
case '[':
|
|||
|
term.esc |= ESC_CSI;
|
|||
|
return 0;
|
|||
|
case '#':
|
|||
|
term.esc |= ESC_TEST;
|
|||
|
return 0;
|
|||
|
case '%':
|
|||
|
term.esc |= ESC_UTF8;
|
|||
|
return 0;
|
|||
|
case 'P': /* DCS -- Device Control String */
|
|||
|
case '_': /* APC -- Application Program Command */
|
|||
|
case '^': /* PM -- Privacy Message */
|
|||
|
case ']': /* OSC -- Operating System Command */
|
|||
|
case 'k': /* old title set compatibility */
|
|||
|
tstrsequence(ascii);
|
|||
|
return 0;
|
|||
|
case 'n': /* LS2 -- Locking shift 2 */
|
|||
|
case 'o': /* LS3 -- Locking shift 3 */
|
|||
|
term.charset = 2 + (ascii - 'n');
|
|||
|
break;
|
|||
|
case '(': /* GZD4 -- set primary charset G0 */
|
|||
|
case ')': /* G1D4 -- set secondary charset G1 */
|
|||
|
case '*': /* G2D4 -- set tertiary charset G2 */
|
|||
|
case '+': /* G3D4 -- set quaternary charset G3 */
|
|||
|
term.icharset = ascii - '(';
|
|||
|
term.esc |= ESC_ALTCHARSET;
|
|||
|
return 0;
|
|||
|
case 'D': /* IND -- Linefeed */
|
|||
|
if (term.c.y == term.bot) {
|
|||
|
tscrollup(term.top, 1);
|
|||
|
} else {
|
|||
|
tmoveto(term.c.x, term.c.y+1);
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'E': /* NEL -- Next line */
|
|||
|
tnewline(1); /* always go to first col */
|
|||
|
break;
|
|||
|
case 'H': /* HTS -- Horizontal tab stop */
|
|||
|
term.tabs[term.c.x] = 1;
|
|||
|
break;
|
|||
|
case 'M': /* RI -- Reverse index */
|
|||
|
if (term.c.y == term.top) {
|
|||
|
tscrolldown(term.top, 1);
|
|||
|
} else {
|
|||
|
tmoveto(term.c.x, term.c.y-1);
|
|||
|
}
|
|||
|
break;
|
|||
|
case 'Z': /* DECID -- Identify Terminal */
|
|||
|
ttywrite(vtiden, strlen(vtiden), 0);
|
|||
|
break;
|
|||
|
case 'c': /* RIS -- Reset to initial state */
|
|||
|
treset();
|
|||
|
resettitle();
|
|||
|
xloadcols();
|
|||
|
xsetmode(0, MODE_HIDE);
|
|||
|
break;
|
|||
|
case '=': /* DECPAM -- Application keypad */
|
|||
|
xsetmode(1, MODE_APPKEYPAD);
|
|||
|
break;
|
|||
|
case '>': /* DECPNM -- Normal keypad */
|
|||
|
xsetmode(0, MODE_APPKEYPAD);
|
|||
|
break;
|
|||
|
case '7': /* DECSC -- Save Cursor */
|
|||
|
tcursor(CURSOR_SAVE);
|
|||
|
break;
|
|||
|
case '8': /* DECRC -- Restore Cursor */
|
|||
|
tcursor(CURSOR_LOAD);
|
|||
|
break;
|
|||
|
case '\\': /* ST -- String Terminator */
|
|||
|
if (term.esc & ESC_STR_END)
|
|||
|
strhandle();
|
|||
|
break;
|
|||
|
default:
|
|||
|
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
|||
|
(uchar) ascii, isprint(ascii)? ascii:'.');
|
|||
|
break;
|
|||
|
}
|
|||
|
return 1;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tputc(Rune u)
|
|||
|
{
|
|||
|
char c[UTF_SIZ];
|
|||
|
int control;
|
|||
|
int width, len;
|
|||
|
Glyph *gp;
|
|||
|
|
|||
|
control = ISCONTROL(u);
|
|||
|
if (u < 127 || !IS_SET(MODE_UTF8)) {
|
|||
|
c[0] = u;
|
|||
|
width = len = 1;
|
|||
|
} else {
|
|||
|
len = utf8encode(u, c);
|
|||
|
if (!control && (width = wcwidth(u)) == -1)
|
|||
|
width = 1;
|
|||
|
}
|
|||
|
|
|||
|
if (IS_SET(MODE_PRINT))
|
|||
|
tprinter(c, len);
|
|||
|
|
|||
|
/*
|
|||
|
* STR sequence must be checked before anything else
|
|||
|
* because it uses all following characters until it
|
|||
|
* receives a ESC, a SUB, a ST or any other C1 control
|
|||
|
* character.
|
|||
|
*/
|
|||
|
if (term.esc & ESC_STR) {
|
|||
|
if (u == '\a' || u == 030 || u == 032 || u == 033 ||
|
|||
|
ISCONTROLC1(u)) {
|
|||
|
term.esc &= ~(ESC_START|ESC_STR);
|
|||
|
term.esc |= ESC_STR_END;
|
|||
|
goto check_control_code;
|
|||
|
}
|
|||
|
|
|||
|
if (strescseq.len+len >= strescseq.siz) {
|
|||
|
/*
|
|||
|
* Here is a bug in terminals. If the user never sends
|
|||
|
* some code to stop the str or esc command, then st
|
|||
|
* will stop responding. But this is better than
|
|||
|
* silently failing with unknown characters. At least
|
|||
|
* then users will report back.
|
|||
|
*
|
|||
|
* In the case users ever get fixed, here is the code:
|
|||
|
*/
|
|||
|
/*
|
|||
|
* term.esc = 0;
|
|||
|
* strhandle();
|
|||
|
*/
|
|||
|
if (strescseq.siz > (SIZE_MAX - UTF_SIZ) / 2)
|
|||
|
return;
|
|||
|
strescseq.siz *= 2;
|
|||
|
strescseq.buf = xrealloc(strescseq.buf, strescseq.siz);
|
|||
|
}
|
|||
|
|
|||
|
memmove(&strescseq.buf[strescseq.len], c, len);
|
|||
|
strescseq.len += len;
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
check_control_code:
|
|||
|
/*
|
|||
|
* Actions of control codes must be performed as soon they arrive
|
|||
|
* because they can be embedded inside a control sequence, and
|
|||
|
* they must not cause conflicts with sequences.
|
|||
|
*/
|
|||
|
if (control) {
|
|||
|
/* in UTF-8 mode ignore handling C1 control characters */
|
|||
|
if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
|
|||
|
return;
|
|||
|
tcontrolcode(u);
|
|||
|
/*
|
|||
|
* control codes are not shown ever
|
|||
|
*/
|
|||
|
if (!term.esc)
|
|||
|
term.lastc = 0;
|
|||
|
return;
|
|||
|
} else if (term.esc & ESC_START) {
|
|||
|
if (term.esc & ESC_CSI) {
|
|||
|
csiescseq.buf[csiescseq.len++] = u;
|
|||
|
if (BETWEEN(u, 0x40, 0x7E)
|
|||
|
|| csiescseq.len >= \
|
|||
|
sizeof(csiescseq.buf)-1) {
|
|||
|
term.esc = 0;
|
|||
|
csiparse();
|
|||
|
csihandle();
|
|||
|
}
|
|||
|
return;
|
|||
|
} else if (term.esc & ESC_UTF8) {
|
|||
|
tdefutf8(u);
|
|||
|
} else if (term.esc & ESC_ALTCHARSET) {
|
|||
|
tdeftran(u);
|
|||
|
} else if (term.esc & ESC_TEST) {
|
|||
|
tdectest(u);
|
|||
|
} else {
|
|||
|
if (!eschandle(u))
|
|||
|
return;
|
|||
|
/* sequence already finished */
|
|||
|
}
|
|||
|
term.esc = 0;
|
|||
|
/*
|
|||
|
* All characters which form part of a sequence are not
|
|||
|
* printed
|
|||
|
*/
|
|||
|
return;
|
|||
|
}
|
|||
|
if (selected(term.c.x, term.c.y))
|
|||
|
selclear();
|
|||
|
|
|||
|
gp = &term.line[term.c.y][term.c.x];
|
|||
|
if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
|
|||
|
gp->mode |= ATTR_WRAP;
|
|||
|
tnewline(1);
|
|||
|
gp = &term.line[term.c.y][term.c.x];
|
|||
|
}
|
|||
|
|
|||
|
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) {
|
|||
|
memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
|
|||
|
gp->mode &= ~ATTR_WIDE;
|
|||
|
}
|
|||
|
|
|||
|
if (term.c.x+width > term.col) {
|
|||
|
if (IS_SET(MODE_WRAP))
|
|||
|
tnewline(1);
|
|||
|
else
|
|||
|
tmoveto(term.col - width, term.c.y);
|
|||
|
gp = &term.line[term.c.y][term.c.x];
|
|||
|
}
|
|||
|
|
|||
|
tsetchar(u, &term.c.attr, term.c.x, term.c.y);
|
|||
|
term.lastc = u;
|
|||
|
|
|||
|
if (width == 2) {
|
|||
|
gp->mode |= ATTR_WIDE;
|
|||
|
if (term.c.x+1 < term.col) {
|
|||
|
if (gp[1].mode == ATTR_WIDE && term.c.x+2 < term.col) {
|
|||
|
gp[2].u = ' ';
|
|||
|
gp[2].mode &= ~ATTR_WDUMMY;
|
|||
|
}
|
|||
|
gp[1].u = '\0';
|
|||
|
gp[1].mode = ATTR_WDUMMY;
|
|||
|
}
|
|||
|
}
|
|||
|
if (term.c.x+width < term.col) {
|
|||
|
tmoveto(term.c.x+width, term.c.y);
|
|||
|
} else {
|
|||
|
term.c.state |= CURSOR_WRAPNEXT;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
int
|
|||
|
twrite(const char *buf, int buflen, int show_ctrl)
|
|||
|
{
|
|||
|
int charsize;
|
|||
|
Rune u;
|
|||
|
int n;
|
|||
|
|
|||
|
for (n = 0; n < buflen; n += charsize) {
|
|||
|
if (IS_SET(MODE_UTF8)) {
|
|||
|
/* process a complete utf8 char */
|
|||
|
charsize = utf8decode(buf + n, &u, buflen - n);
|
|||
|
if (charsize == 0)
|
|||
|
break;
|
|||
|
} else {
|
|||
|
u = buf[n] & 0xFF;
|
|||
|
charsize = 1;
|
|||
|
}
|
|||
|
if (show_ctrl && ISCONTROL(u)) {
|
|||
|
if (u & 0x80) {
|
|||
|
u &= 0x7f;
|
|||
|
tputc('^');
|
|||
|
tputc('[');
|
|||
|
} else if (u != '\n' && u != '\r' && u != '\t') {
|
|||
|
u ^= 0x40;
|
|||
|
tputc('^');
|
|||
|
}
|
|||
|
}
|
|||
|
tputc(u);
|
|||
|
}
|
|||
|
return n;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
tresize(int col, int row)
|
|||
|
{
|
|||
|
int i;
|
|||
|
int minrow = MIN(row, term.row);
|
|||
|
int mincol = MIN(col, term.col);
|
|||
|
int *bp;
|
|||
|
TCursor c;
|
|||
|
|
|||
|
if (col < 1 || row < 1) {
|
|||
|
fprintf(stderr,
|
|||
|
"tresize: error resizing to %dx%d\n", col, row);
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* slide screen to keep cursor where we expect it -
|
|||
|
* tscrollup would work here, but we can optimize to
|
|||
|
* memmove because we're freeing the earlier lines
|
|||
|
*/
|
|||
|
for (i = 0; i <= term.c.y - row; i++) {
|
|||
|
free(term.line[i]);
|
|||
|
free(term.alt[i]);
|
|||
|
}
|
|||
|
/* ensure that both src and dst are not NULL */
|
|||
|
if (i > 0) {
|
|||
|
memmove(term.line, term.line + i, row * sizeof(Line));
|
|||
|
memmove(term.alt, term.alt + i, row * sizeof(Line));
|
|||
|
}
|
|||
|
for (i += row; i < term.row; i++) {
|
|||
|
free(term.line[i]);
|
|||
|
free(term.alt[i]);
|
|||
|
}
|
|||
|
|
|||
|
/* resize to new height */
|
|||
|
term.line = xrealloc(term.line, row * sizeof(Line));
|
|||
|
term.alt = xrealloc(term.alt, row * sizeof(Line));
|
|||
|
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
|
|||
|
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
|
|||
|
|
|||
|
/* resize each row to new width, zero-pad if needed */
|
|||
|
for (i = 0; i < minrow; i++) {
|
|||
|
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
|||
|
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
|||
|
}
|
|||
|
|
|||
|
/* allocate any new rows */
|
|||
|
for (/* i = minrow */; i < row; i++) {
|
|||
|
term.line[i] = xmalloc(col * sizeof(Glyph));
|
|||
|
term.alt[i] = xmalloc(col * sizeof(Glyph));
|
|||
|
}
|
|||
|
if (col > term.col) {
|
|||
|
bp = term.tabs + term.col;
|
|||
|
|
|||
|
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
|||
|
while (--bp > term.tabs && !*bp)
|
|||
|
/* nothing */ ;
|
|||
|
for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
|
|||
|
*bp = 1;
|
|||
|
}
|
|||
|
/* update terminal size */
|
|||
|
term.col = col;
|
|||
|
term.row = row;
|
|||
|
/* reset scrolling region */
|
|||
|
tsetscroll(0, row-1);
|
|||
|
/* make use of the LIMIT in tmoveto */
|
|||
|
tmoveto(term.c.x, term.c.y);
|
|||
|
/* Clearing both screens (it makes dirty all lines) */
|
|||
|
c = term.c;
|
|||
|
for (i = 0; i < 2; i++) {
|
|||
|
if (mincol < col && 0 < minrow) {
|
|||
|
tclearregion(mincol, 0, col - 1, minrow - 1);
|
|||
|
}
|
|||
|
if (0 < col && minrow < row) {
|
|||
|
tclearregion(0, minrow, col - 1, row - 1);
|
|||
|
}
|
|||
|
tswapscreen();
|
|||
|
tcursor(CURSOR_LOAD);
|
|||
|
}
|
|||
|
term.c = c;
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
resettitle(void)
|
|||
|
{
|
|||
|
xsettitle(NULL);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
drawregion(int x1, int y1, int x2, int y2)
|
|||
|
{
|
|||
|
int y;
|
|||
|
|
|||
|
for (y = y1; y < y2; y++) {
|
|||
|
if (!term.dirty[y])
|
|||
|
continue;
|
|||
|
|
|||
|
term.dirty[y] = 0;
|
|||
|
xdrawline(term.line[y], x1, y, x2);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
draw(void)
|
|||
|
{
|
|||
|
int cx = term.c.x, ocx = term.ocx, ocy = term.ocy;
|
|||
|
|
|||
|
if (!xstartdraw())
|
|||
|
return;
|
|||
|
|
|||
|
/* adjust cursor position */
|
|||
|
LIMIT(term.ocx, 0, term.col-1);
|
|||
|
LIMIT(term.ocy, 0, term.row-1);
|
|||
|
if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY)
|
|||
|
term.ocx--;
|
|||
|
if (term.line[term.c.y][cx].mode & ATTR_WDUMMY)
|
|||
|
cx--;
|
|||
|
|
|||
|
drawregion(0, 0, term.col, term.row);
|
|||
|
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
|
|||
|
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
|
|||
|
term.ocx = cx;
|
|||
|
term.ocy = term.c.y;
|
|||
|
xfinishdraw();
|
|||
|
if (ocx != term.ocx || ocy != term.ocy)
|
|||
|
xximspot(term.ocx, term.ocy);
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
redraw(void)
|
|||
|
{
|
|||
|
tfulldirt();
|
|||
|
draw();
|
|||
|
}
|