Add eschandle()
We already have a csihandle() function, where is located code about CSI sequences, so it is logical do the same with ESC sequences. This change helps to simplify tcontrol(), which has a complex flow and should be rewritten.
This commit is contained in:
Roberto E. Vargas Caballero
parent
a3549c2eec
commit
e5f6736ee0
169
st.c
169
st.c
@ -356,6 +356,7 @@ static void csidump(void);
|
||||
static void csihandle(void);
|
||||
static void csiparse(void);
|
||||
static void csireset(void);
|
||||
static int eschandle(uchar ascii);
|
||||
static void strdump(void);
|
||||
static void strhandle(void);
|
||||
static void strparse(void);
|
||||
@ -2347,6 +2348,19 @@ tdeftran(char ascii) {
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tdectest(char c) {
|
||||
static char E[UTF_SIZ] = "E";
|
||||
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) {
|
||||
if (c & 0x80) {
|
||||
@ -2455,17 +2469,83 @@ tcontrolcode(uchar ascii) {
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
tdectest(char c) {
|
||||
static char E[UTF_SIZ] = "E";
|
||||
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);
|
||||
/*
|
||||
* 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 '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 '(': /* set primary charset G0 */
|
||||
case ')': /* set secondary charset G1 */
|
||||
case '*': /* set tertiary charset G2 */
|
||||
case '+': /* 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, sizeof(vtiden) - 1);
|
||||
break;
|
||||
case 'c': /* RIS -- Reset to inital state */
|
||||
treset();
|
||||
xresettitle();
|
||||
xloadcols();
|
||||
break;
|
||||
case '=': /* DECPAM -- Application keypad */
|
||||
term.mode |= MODE_APPKEYPAD;
|
||||
break;
|
||||
case '>': /* DECPNM -- Normal keypad */
|
||||
term.mode &= ~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
|
||||
@ -2552,76 +2632,9 @@ tputc(char *c, int len) {
|
||||
} else if(term.esc & ESC_TEST) {
|
||||
tdectest(ascii);
|
||||
} else {
|
||||
switch(ascii) {
|
||||
case '[':
|
||||
term.esc |= ESC_CSI;
|
||||
if (!eschandle(ascii))
|
||||
return;
|
||||
case '#':
|
||||
term.esc |= ESC_TEST;
|
||||
return;
|
||||
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;
|
||||
case '(': /* set primary charset G0 */
|
||||
case ')': /* set secondary charset G1 */
|
||||
case '*': /* set tertiary charset G2 */
|
||||
case '+': /* set quaternary charset G3 */
|
||||
term.icharset = ascii - '(';
|
||||
term.esc |= ESC_ALTCHARSET;
|
||||
return;
|
||||
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, sizeof(vtiden) - 1);
|
||||
break;
|
||||
case 'c': /* RIS -- Reset to inital state */
|
||||
treset();
|
||||
xresettitle();
|
||||
xloadcols();
|
||||
break;
|
||||
case '=': /* DECPAM -- Application keypad */
|
||||
term.mode |= MODE_APPKEYPAD;
|
||||
break;
|
||||
case '>': /* DECPNM -- Normal keypad */
|
||||
term.mode &= ~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;
|
||||
}
|
||||
/* sequence already finished */
|
||||
}
|
||||
term.esc = 0;
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user