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Add OSC, DSC, PM, APC and settitle.

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master
Christoph Lohmann 12 years ago
parent ff040e9894
commit 6696ef8563
2 changed files with 191 additions and 89 deletions
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  1. 1
      TODO
  2. 279
      st.c

1
TODO
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@ -20,6 +20,7 @@ bugs
* fix shift up/down (shift selection in emacs) * fix shift up/down (shift selection in emacs)
* fix selection click * fix selection click
* fix selection paste for xatom STRING * fix selection paste for xatom STRING
* fix umlaut handling in settitle
misc misc
---- ----

279
st.c
Unescape View File

@ -43,9 +43,10 @@
#define XEMBED_FOCUS_OUT 5 #define XEMBED_FOCUS_OUT 5
/* Arbitrary sizes */ /* Arbitrary sizes */
#define ESC_TITLE_SIZ 256
#define ESC_BUF_SIZ 256 #define ESC_BUF_SIZ 256
#define ESC_ARG_SIZ 16 #define ESC_ARG_SIZ 16
#define STR_BUF_SIZ 256
#define STR_ARG_SIZ 16
#define DRAW_BUF_SIZ 1024 #define DRAW_BUF_SIZ 1024
#define UTF_SIZ 4 #define UTF_SIZ 4
#define XK_NO_MOD UINT_MAX #define XK_NO_MOD UINT_MAX
@ -110,9 +111,9 @@ enum term_mode {
enum escape_state { enum escape_state {
ESC_START = 1, ESC_START = 1,
ESC_CSI = 2, ESC_CSI = 2,
ESC_OSC = 4, ESC_STR = 4, /* DSC, OSC, PM, APC */
ESC_TITLE = 8, ESC_ALTCHARSET = 8,
ESC_ALTCHARSET = 16 ESC_STR_END = 16, /* a final string was encountered */
}; };
enum window_state { enum window_state {
@ -158,6 +159,16 @@ typedef struct {
char mode; char mode;
} CSIEscape; } CSIEscape;
/* STR Escape sequence structs */
/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
typedef struct {
char type; /* ESC type ... */
char buf[STR_BUF_SIZ]; /* raw string */
int len; /* raw string length */
char *args[STR_ARG_SIZ];
int narg; /* nb of args */
} STREscape;
/* Internal representation of the screen */ /* Internal representation of the screen */
typedef struct { typedef struct {
int row; /* nb row */ int row; /* nb row */
@ -170,8 +181,6 @@ typedef struct {
int bot; /* bottom scroll limit */ int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */ int mode; /* terminal mode flags */
int esc; /* escape state flags */ int esc; /* escape state flags */
char title[ESC_TITLE_SIZ];
int titlelen;
bool *tabs; bool *tabs;
} Term; } Term;
@ -239,6 +248,10 @@ static void csidump(void);
static void csihandle(void); static void csihandle(void);
static void csiparse(void); static void csiparse(void);
static void csireset(void); static void csireset(void);
static void strdump(void);
static void strhandle(void);
static void strparse(void);
static void strreset(void);
static void tclearregion(int, int, int, int); static void tclearregion(int, int, int, int);
static void tcursor(int); static void tcursor(int);
@ -323,7 +336,8 @@ static void (*handler[LASTEvent])(XEvent *) = {
static DC dc; static DC dc;
static XWindow xw; static XWindow xw;
static Term term; static Term term;
static CSIEscape escseq; static CSIEscape csiescseq;
static STREscape strescseq;
static int cmdfd; static int cmdfd;
static pid_t pid; static pid_t pid;
static Selection sel; static Selection sel;
@ -968,22 +982,22 @@ tnewline(int first_col) {
void void
csiparse(void) { csiparse(void) {
/* int noarg = 1; */ /* int noarg = 1; */
char *p = escseq.buf; char *p = csiescseq.buf;
escseq.narg = 0; csiescseq.narg = 0;
if(*p == '?') if(*p == '?')
escseq.priv = 1, p++; csiescseq.priv = 1, p++;
while(p < escseq.buf+escseq.len) { while(p < csiescseq.buf+csiescseq.len) {
while(isdigit(*p)) { while(isdigit(*p)) {
escseq.arg[escseq.narg] *= 10; csiescseq.arg[csiescseq.narg] *= 10;
escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */; csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
} }
if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ) if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ)
escseq.narg++, p++; csiescseq.narg++, p++;
else { else {
escseq.mode = *p; csiescseq.mode = *p;
escseq.narg++; csiescseq.narg++;
return; return;
} }
} }
@ -1166,7 +1180,7 @@ tsetscroll(int t, int b) {
void void
csihandle(void) { csihandle(void) {
switch(escseq.mode) { switch(csiescseq.mode) {
default: default:
unknown: unknown:
fprintf(stderr, "erresc: unknown csi "); fprintf(stderr, "erresc: unknown csi ");
@ -1174,37 +1188,37 @@ csihandle(void) {
/* die(""); */ /* die(""); */
break; break;
case '@': /* ICH -- Insert <n> blank char */ case '@': /* ICH -- Insert <n> blank char */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tinsertblank(escseq.arg[0]); tinsertblank(csiescseq.arg[0]);
break; break;
case 'A': /* CUU -- Cursor <n> Up */ case 'A': /* CUU -- Cursor <n> Up */
case 'e': case 'e':
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(term.c.x, term.c.y-escseq.arg[0]); tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
break; break;
case 'B': /* CUD -- Cursor <n> Down */ case 'B': /* CUD -- Cursor <n> Down */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(term.c.x, term.c.y+escseq.arg[0]); tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
break; break;
case 'C': /* CUF -- Cursor <n> Forward */ case 'C': /* CUF -- Cursor <n> Forward */
case 'a': case 'a':
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(term.c.x+escseq.arg[0], term.c.y); tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
break; break;
case 'D': /* CUB -- Cursor <n> Backward */ case 'D': /* CUB -- Cursor <n> Backward */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(term.c.x-escseq.arg[0], term.c.y); tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
break; break;
case 'E': /* CNL -- Cursor <n> Down and first col */ case 'E': /* CNL -- Cursor <n> Down and first col */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(0, term.c.y+escseq.arg[0]); tmoveto(0, term.c.y+csiescseq.arg[0]);
break; break;
case 'F': /* CPL -- Cursor <n> Up and first col */ case 'F': /* CPL -- Cursor <n> Up and first col */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(0, term.c.y-escseq.arg[0]); tmoveto(0, term.c.y-csiescseq.arg[0]);
break; break;
case 'g': /* TBC -- Tabulation clear */ case 'g': /* TBC -- Tabulation clear */
switch (escseq.arg[0]) { switch (csiescseq.arg[0]) {
case 0: /* clear current tab stop */ case 0: /* clear current tab stop */
term.tabs[term.c.x] = 0; term.tabs[term.c.x] = 0;
break; break;
@ -1217,23 +1231,23 @@ csihandle(void) {
break; break;
case 'G': /* CHA -- Move to <col> */ case 'G': /* CHA -- Move to <col> */
case '`': /* XXX: HPA -- same? */ case '`': /* XXX: HPA -- same? */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(escseq.arg[0]-1, term.c.y); tmoveto(csiescseq.arg[0]-1, term.c.y);
break; break;
case 'H': /* CUP -- Move to <row> <col> */ case 'H': /* CUP -- Move to <row> <col> */
case 'f': /* XXX: HVP -- same? */ case 'f': /* XXX: HVP -- same? */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
DEFAULT(escseq.arg[1], 1); DEFAULT(csiescseq.arg[1], 1);
tmoveto(escseq.arg[1]-1, escseq.arg[0]-1); tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
break; break;
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */ case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
while (escseq.arg[0]--) while (csiescseq.arg[0]--)
tputtab(); tputtab();
break; break;
case 'J': /* ED -- Clear screen */ case 'J': /* ED -- Clear screen */
sel.bx = -1; sel.bx = -1;
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 0: /* below */ case 0: /* below */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
if(term.c.y < term.row-1) if(term.c.y < term.row-1)
@ -1252,7 +1266,7 @@ csihandle(void) {
} }
break; break;
case 'K': /* EL -- Clear line */ case 'K': /* EL -- Clear line */
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 0: /* right */ case 0: /* right */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
break; break;
@ -1265,20 +1279,20 @@ csihandle(void) {
} }
break; break;
case 'S': /* SU -- Scroll <n> line up */ case 'S': /* SU -- Scroll <n> line up */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tscrollup(term.top, escseq.arg[0]); tscrollup(term.top, csiescseq.arg[0]);
break; break;
case 'T': /* SD -- Scroll <n> line down */ case 'T': /* SD -- Scroll <n> line down */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tscrolldown(term.top, escseq.arg[0]); tscrolldown(term.top, csiescseq.arg[0]);
break; break;
case 'L': /* IL -- Insert <n> blank lines */ case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tinsertblankline(escseq.arg[0]); tinsertblankline(csiescseq.arg[0]);
break; break;
case 'l': /* RM -- Reset Mode */ case 'l': /* RM -- Reset Mode */
if(escseq.priv) { if(csiescseq.priv) {
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 1: case 1:
term.mode &= ~MODE_APPKEYPAD; term.mode &= ~MODE_APPKEYPAD;
break; break;
@ -1312,7 +1326,7 @@ csihandle(void) {
tclearregion(0, 0, term.col-1, term.row-1); tclearregion(0, 0, term.col-1, term.row-1);
tswapscreen(); tswapscreen();
} }
if(escseq.arg[0] != 1049) if(csiescseq.arg[0] != 1049)
break; break;
case 1048: case 1048:
tcursor(CURSOR_LOAD); tcursor(CURSOR_LOAD);
@ -1321,7 +1335,7 @@ csihandle(void) {
goto unknown; goto unknown;
} }
} else { } else {
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 4: case 4:
term.mode &= ~MODE_INSERT; term.mode &= ~MODE_INSERT;
break; break;
@ -1331,25 +1345,25 @@ csihandle(void) {
} }
break; break;
case 'M': /* DL -- Delete <n> lines */ case 'M': /* DL -- Delete <n> lines */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tdeleteline(escseq.arg[0]); tdeleteline(csiescseq.arg[0]);
break; break;
case 'X': /* ECH -- Erase <n> char */ case 'X': /* ECH -- Erase <n> char */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y); tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
break; break;
case 'P': /* DCH -- Delete <n> char */ case 'P': /* DCH -- Delete <n> char */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tdeletechar(escseq.arg[0]); tdeletechar(csiescseq.arg[0]);
break; break;
/* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */ /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
case 'd': /* VPA -- Move to <row> */ case 'd': /* VPA -- Move to <row> */
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tmoveto(term.c.x, escseq.arg[0]-1); tmoveto(term.c.x, csiescseq.arg[0]-1);
break; break;
case 'h': /* SM -- Set terminal mode */ case 'h': /* SM -- Set terminal mode */
if(escseq.priv) { if(csiescseq.priv) {
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 1: case 1:
term.mode |= MODE_APPKEYPAD; term.mode |= MODE_APPKEYPAD;
break; break;
@ -1367,7 +1381,7 @@ csihandle(void) {
break; break;
case 12: /* att610 -- Start blinking cursor (IGNORED) */ case 12: /* att610 -- Start blinking cursor (IGNORED) */
/* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */ /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
if(escseq.narg > 1 && escseq.arg[1] != 25) if(csiescseq.narg > 1 && csiescseq.arg[1] != 25)
break; break;
case 25: case 25:
term.c.state &= ~CURSOR_HIDE; term.c.state &= ~CURSOR_HIDE;
@ -1385,7 +1399,7 @@ csihandle(void) {
tclearregion(0, 0, term.col-1, term.row-1); tclearregion(0, 0, term.col-1, term.row-1);
else else
tswapscreen(); tswapscreen();
if(escseq.arg[0] != 1049) if(csiescseq.arg[0] != 1049)
break; break;
case 1048: case 1048:
tcursor(CURSOR_SAVE); tcursor(CURSOR_SAVE);
@ -1393,7 +1407,7 @@ csihandle(void) {
default: goto unknown; default: goto unknown;
} }
} else { } else {
switch(escseq.arg[0]) { switch(csiescseq.arg[0]) {
case 4: case 4:
term.mode |= MODE_INSERT; term.mode |= MODE_INSERT;
break; break;
@ -1402,15 +1416,15 @@ csihandle(void) {
}; };
break; break;
case 'm': /* SGR -- Terminal attribute (color) */ case 'm': /* SGR -- Terminal attribute (color) */
tsetattr(escseq.arg, escseq.narg); tsetattr(csiescseq.arg, csiescseq.narg);
break; break;
case 'r': /* DECSTBM -- Set Scrolling Region */ case 'r': /* DECSTBM -- Set Scrolling Region */
if(escseq.priv) if(csiescseq.priv)
goto unknown; goto unknown;
else { else {
DEFAULT(escseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
DEFAULT(escseq.arg[1], term.row); DEFAULT(csiescseq.arg[1], term.row);
tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1); tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
tmoveto(0, 0); tmoveto(0, 0);
} }
break; break;
@ -1427,8 +1441,8 @@ void
csidump(void) { csidump(void) {
int i; int i;
printf("ESC["); printf("ESC[");
for(i = 0; i < escseq.len; i++) { for(i = 0; i < csiescseq.len; i++) {
uint c = escseq.buf[i] & 0xff; uint c = csiescseq.buf[i] & 0xff;
if(isprint(c)) putchar(c); if(isprint(c)) putchar(c);
else if(c == '\n') printf("(\\n)"); else if(c == '\n') printf("(\\n)");
else if(c == '\r') printf("(\\r)"); else if(c == '\r') printf("(\\r)");
@ -1440,7 +1454,80 @@ csidump(void) {
void void
csireset(void) { csireset(void) {
memset(&escseq, 0, sizeof(escseq)); memset(&csiescseq, 0, sizeof(csiescseq));
}
void
strhandle(void) {
char *p;
p = strescseq.buf;
switch(strescseq.type) {
case ']': /* OSC -- Operating System Command */
switch(p[0]) {
case '0':
case '2':
/*
* TODO: Handle special chars in string, like umlauts.
*/
if(p[1] == ';') {
if(!strncmp(strescseq.buf, "settitle ", 9)) {
XStoreName(xw.dpy, xw.win, strescseq.buf+11);
} else {
XStoreName(xw.dpy, xw.win, strescseq.buf+2);
}
}
break;
case ';':
XStoreName(xw.dpy, xw.win, strescseq.buf+1);
break;
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
break;
default:
fprintf(stderr, "erresc: unknown str ");
strdump();
break;
}
break;
case 'P': /* DSC -- Device Control String */
case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */
default:
fprintf(stderr, "erresc: unknown str ");
strdump();
/* die(""); */
break;
}
}
void
strparse(void) {
/*
* TODO: Implement parsing like for CSI when required.
* Format: ESC type cmd ';' arg0 [';' argn] ESC \
*/
return;
}
void
strdump(void) {
int i;
printf("ESC%c", strescseq.type);
for(i = 0; i < strescseq.len; i++) {
uint c = strescseq.buf[i] & 0xff;
if(isprint(c)) putchar(c);
else if(c == '\n') printf("(\\n)");
else if(c == '\r') printf("(\\r)");
else if(c == 0x1b) printf("(\\e)");
else printf("(%02x)", c);
}
printf("ESC\\\n");
}
void
strreset(void) {
memset(&strescseq, 0, sizeof(strescseq));
} }
void void
@ -1457,25 +1544,31 @@ tputc(char *c) {
char ascii = *c; char ascii = *c;
if(term.esc & ESC_START) { if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) { if(term.esc & ESC_CSI) {
escseq.buf[escseq.len++] = ascii; csiescseq.buf[csiescseq.len++] = ascii;
if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) { if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) {
term.esc = 0; term.esc = 0;
csiparse(), csihandle(); csiparse(), csihandle();
} }
/* TODO: handle other OSC */ } else if(term.esc & ESC_STR) {
} else if(term.esc & ESC_OSC) { switch(ascii) {
if(ascii == ';') { case '\033':
term.titlelen = 0; term.esc = ESC_START | ESC_STR_END;
term.esc = ESC_START | ESC_TITLE; break;
} case '\a': /* backwards compatibility to xterm */
} else if(term.esc & ESC_TITLE) {
if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
term.esc = 0; term.esc = 0;
term.title[term.titlelen] = '\0'; strhandle();
XStoreName(xw.dpy, xw.win, term.title); break;
} else { default:
term.title[term.titlelen++] = ascii; strescseq.buf[strescseq.len++] = ascii;
if (strescseq.len+1 >= STR_BUF_SIZ) {
term.esc = 0;
strhandle();
}
} }
} else if(term.esc & ESC_STR_END) {
term.esc = 0;
if(ascii == '\\')
strhandle();
} else if(term.esc & ESC_ALTCHARSET) { } else if(term.esc & ESC_ALTCHARSET) {
switch(ascii) { switch(ascii) {
case '0': /* Line drawing crap */ case '0': /* Line drawing crap */
@ -1493,8 +1586,13 @@ tputc(char *c) {
case '[': case '[':
term.esc |= ESC_CSI; term.esc |= ESC_CSI;
break; break;
case ']': case 'P': /* DCS -- Device Control String */
term.esc |= ESC_OSC; case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */
case ']': /* OSC -- Operating System Command */
strreset();
strescseq.type = ascii;
term.esc |= ESC_STR;
break; break;
case '(': case '(':
term.esc |= ESC_ALTCHARSET; term.esc |= ESC_ALTCHARSET;
@ -1541,6 +1639,9 @@ tputc(char *c) {
tcursor(CURSOR_LOAD); tcursor(CURSOR_LOAD);
term.esc = 0; term.esc = 0;
break; break;
case '\\': /* ST -- Stop */
term.esc = 0;
break;
default: default:
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
(uchar) ascii, isprint(ascii)?ascii:'.'); (uchar) ascii, isprint(ascii)?ascii:'.');

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