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Allow control characters inside escape sequences

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Taken from vt100 manual programmer:

	Control characters (codes \0 to \37 inclusive) are specifically
	excluded from the control sequence syntax, but may be embedded
	within a control sequence. Embedded control characters are executed
	as soon as they are encountered by the VT100. The processing of the
	control sequence then continues with the next character received.
---
 st.c |   68 +++++++++++++++++++++++++++++++++---------------------------------
 1 file changed, 34 insertions(+), 34 deletions(-)
This commit is contained in:
Roberto E. Vargas Caballero 2012-09-26 20:55:18 +02:00
parent a7d7e29300
commit 3af49e34f6
1 changed files with 34 additions and 34 deletions
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52
st.c
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@ -1668,6 +1668,32 @@ tputc(char *c, int len) {
if(iofd != -1)
write(iofd, c, len);
switch(ascii) {
case '\t':
tputtab(1);
return;
case '\b':
tmoveto(term.c.x-1, term.c.y);
return;
case '\r':
tmoveto(0, term.c.y);
return;
case '\f':
case '\v':
case '\n':
/* go to first col if the mode is set */
tnewline(IS_SET(MODE_CRLF));
return;
case '\a':
if(!(xw.state & WIN_FOCUSED))
xseturgency(1);
return;
case '\033':
csireset();
term.esc = ESC_START;
return;
}
if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) {
csiescseq.buf[csiescseq.len++] = ascii;
@ -1791,31 +1817,6 @@ tputc(char *c, int len) {
} else {
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
sel.bx = -1;
switch(ascii) {
case '\t':
tputtab(1);
break;
case '\b':
tmoveto(term.c.x-1, term.c.y);
break;
case '\r':
tmoveto(0, term.c.y);
break;
case '\f':
case '\v':
case '\n':
/* go to first col if the mode is set */
tnewline(IS_SET(MODE_CRLF));
break;
case '\a':
if(!(xw.state & WIN_FOCUSED))
xseturgency(1);
break;
case '\033':
csireset();
term.esc = ESC_START;
break;
default:
if(ascii >= '\020' || term.c.attr.mode & ATTR_GFX) {
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
tnewline(1); /* always go to first col */
@ -1826,7 +1827,6 @@ tputc(char *c, int len) {
term.c.state |= CURSOR_WRAPNEXT;
}
}
}
}
int