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Add SRM sequence

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This sequence enable/disable the local echo.
---
 st.c |   76 ++++++++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 56 insertions(+), 20 deletions(-)
This commit is contained in:
Roberto E. Vargas Caballero 2012-11-13 20:04:26 +01:00
parent ace789a79f
commit 73177ba366
1 changed files with 56 additions and 20 deletions
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72
st.c
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@ -120,7 +120,8 @@ enum term_mode {
MODE_MOUSE = 32|64,
MODE_REVERSE = 128,
MODE_KBDLOCK = 256,
MODE_HIDE = 512
MODE_HIDE = 512,
MODE_ECHO = 1024
};
enum escape_state {
@ -320,6 +321,7 @@ static void tswapscreen(void);
static void tsetdirt(int, int);
static void tsetmode(bool, bool, int *, int);
static void tfulldirt(void);
static void techo(char *, int);
static void ttynew(void);
static void ttyread(void);
@ -1534,7 +1536,8 @@ tsetmode(bool priv, bool set, int *args, int narg) {
case 4: /* IRM -- Insertion-replacement */
MODBIT(term.mode, set, MODE_INSERT);
break;
case 12: /* XXX: SRM -- Send/Receive */
case 12: /* SRM -- Send/Receive */
MODBIT(term.mode, !set, MODE_ECHO);
break;
case 20: /* LNM -- Linefeed/new line */
MODBIT(term.mode, set, MODE_CRLF);
@ -1848,6 +1851,28 @@ tputtab(bool forward) {
tmoveto(x, term.c.y);
}
void
techo(char *buf, int len) {
for(; len > 0; buf++, len--) {
char c = *buf;
if(c == '\033') { /* escape */
tputc("^", 1);
tputc("[", 1);
} else if (c < '\x20') { /* control code */
if(c != '\n' && c != '\r' && c != '\t') {
c |= '\x40';
tputc("^", 1);
}
tputc(&c, 1);
} else {
break;
}
}
if (len)
tputc(buf, len);
}
void
tputc(char *c, int len) {
uchar ascii = *c;
@ -2679,7 +2704,7 @@ void
kpress(XEvent *ev) {
XKeyEvent *e = &ev->xkey;
KeySym ksym;
char buf[32], *customkey;
char xstr[31], buf[32], *customkey, *cp = buf;
int len, meta, shift, i;
Status status;
@ -2688,7 +2713,7 @@ kpress(XEvent *ev) {
meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
/* 1. shortcuts */
for(i = 0; i < LEN(shortcuts); i++) {
@ -2702,7 +2727,8 @@ kpress(XEvent *ev) {
/* 2. custom keys from config.h */
if((customkey = kmap(ksym, e->state))) {
ttywrite(customkey, strlen(customkey));
len = strlen(customkey);
memcpy(buf, customkey, len);
/* 2. hardcoded (overrides X lookup) */
} else {
switch(ksym) {
@ -2714,34 +2740,44 @@ kpress(XEvent *ev) {
sprintf(buf, "\033%c%c",
IS_SET(MODE_APPKEYPAD) ? 'O' : '[',
(shift ? "dacb":"DACB")[ksym - XK_Left]);
ttywrite(buf, 3);
len = 3;
break;
case XK_Insert:
if(shift)
if(shift) {
selpaste();
return;
}
memcpy(buf, xstr, len);
break;
case XK_Return:
len = 0;
if(meta)
ttywrite("\033", 1);
*cp++ = '\033', len++;
if(IS_SET(MODE_CRLF)) {
ttywrite("\r\n", 2);
} else {
ttywrite("\r", 1);
}
*cp++ = '\r', len++;
if(IS_SET(MODE_CRLF))
*cp = '\n', len++;
break;
/* 3. X lookup */
default:
if(len > 0) {
if(meta && len == 1)
ttywrite("\033", 1);
ttywrite(buf, len);
}
if(len == 0)
return;
if (len == 1 && meta)
*cp++ = '\033';
memcpy(cp, xstr, len);
len = cp - buf + len;
break;
}
}
ttywrite(buf, len);
if(IS_SET(MODE_ECHO))
techo(buf, len);
}
void
cmessage(XEvent *e) {
/* See xembed specs