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-rw-r--r--input.c155
1 files changed, 121 insertions, 34 deletions
diff --git a/input.c b/input.c
index 79208e7..6edff14 100644
--- a/input.c
+++ b/input.c
@@ -37,15 +37,25 @@ static void InpSetCursor __P((void));
extern struct display *display;
extern struct mchar mchar_blank, mchar_so;
+struct inpline
+{
+ char buf[101]; /* text buffer */
+ int len; /* length of the editible string */
+ int pos; /* cursor position in editable string */
+};
+
+static struct inpline inphist; /* XXX: should be a dynamic list */
+
+
struct inpdata
{
- char inpbuf[101];
- int inplen;
- int inpmaxlen;
- char *inpstring;
- int inpstringlen;
- int inpmode;
- void (*inpfinfunc)();
+ struct inpline inp;
+ int inpmaxlen; /* 100, or less, if caller has shorter buffer */
+ char *inpstring; /* the prompt */
+ int inpstringlen; /* length of the prompt */
+ int inpmode; /* INP_NOECHO, INP_RAW, INP_EVERY */
+ void (*inpfinfunc) __P((char *buf, int len, char *priv));
+ char *priv;
};
static struct LayFuncs InpLf =
@@ -78,9 +88,10 @@ char *p, *s;
}
if (s)
{
- strncpy(inpdata->inpbuf, s, sizeof(inpdata->inpbuf) - 1);
- inpdata->inpbuf[sizeof(inpdata->inpbuf) - 1] = 0;
- inpdata->inplen = strlen(inpdata->inpbuf);
+ if (s != inpdata->inp.buf)
+ strncpy(inpdata->inp.buf, s, sizeof(inpdata->inp.buf) - 1);
+ inpdata->inp.buf[sizeof(inpdata->inp.buf) - 1] = 0;
+ inpdata->inp.pos = inpdata->inp.len = strlen(inpdata->inp.buf);
}
RefreshLine(STATLINE, 0, D_width - 1, 0);
}
@@ -93,13 +104,15 @@ char *p, *s;
* mode is an OR of
* INP_NOECHO == suppress echoing of characters.
* INP_RAW == raw mode. call finfunc after each character typed.
+ * INP_EVERY == digraph mode.
*/
void
-Input(istr, len, finfunc, mode)
+Input(istr, len, mode, finfunc, data)
char *istr;
int len;
-void (*finfunc)();
int mode;
+void (*finfunc) __P((char *buf, int len, char *data));
+char *data;
{
int maxlen;
struct inpdata *inpdata;
@@ -129,8 +142,9 @@ int mode;
inpdata = (struct inpdata *)D_lay->l_data;
inpdata->inpmaxlen = len;
inpdata->inpfinfunc = finfunc;
- inpdata->inplen = 0;
+ inpdata->inp.pos = inpdata->inp.len = 0;
inpdata->inpmode = mode;
+ inpdata->priv = data;
inp_setprompt(istr, (char *)NULL);
}
@@ -140,7 +154,7 @@ InpSetCursor()
struct inpdata *inpdata;
inpdata = (struct inpdata *)D_lay->l_data;
- GotoPos(inpdata->inpstringlen + (inpdata->inpmode & INP_NOECHO ? 0 : inpdata->inplen), STATLINE);
+ GotoPos(inpdata->inpstringlen + (inpdata->inpmode & INP_NOECHO ? 0 : inpdata->inp.pos), STATLINE);
}
static void
@@ -155,70 +169,134 @@ int *plen;
inpdata = (struct inpdata *)D_lay->l_data;
- GotoPos(inpdata->inpstringlen + (inpdata->inpmode & INP_NOECHO ? 0 : inpdata->inplen), STATLINE);
+ GotoPos(inpdata->inpstringlen + (inpdata->inpmode & INP_NOECHO ? 0 : inpdata->inp.pos), STATLINE);
if (ppbuf == 0)
{
InpAbort();
return;
}
- x = inpdata->inpstringlen + inpdata->inplen;
+ x = inpdata->inpstringlen + inpdata->inp.pos;
len = *plen;
pbuf = *ppbuf;
while (len)
{
+ char *p = inpdata->inp.buf + inpdata->inp.pos;
+
ch = *pbuf++;
len--;
if (inpdata->inpmode & INP_EVERY)
{
- inpdata->inpbuf[inpdata->inplen] = ch;
- inpdata->inpbuf[inpdata->inplen + 1] = ch; /* gross */
- (*inpdata->inpfinfunc)(inpdata->inpbuf, inpdata->inplen);
- ch = inpdata->inpbuf[inpdata->inplen];
+ inpdata->inp.buf[inpdata->inp.len] = ch;
+ inpdata->inp.buf[inpdata->inp.len + 1] = ch; /* gross */
+ (*inpdata->inpfinfunc)(inpdata->inp.buf, inpdata->inp.len, inpdata->priv);
+ ch = inpdata->inp.buf[inpdata->inp.len];
}
else if (inpdata->inpmode & INP_RAW)
{
- (*inpdata->inpfinfunc)(&ch, 1); /* raw */
+ (*inpdata->inpfinfunc)(&ch, 1, inpdata->priv); /* raw */
if (ch)
continue;
}
- if ((unsigned char)ch >= ' ' && ch != 0177 && inpdata->inplen < inpdata->inpmaxlen)
+ if (((unsigned char)ch & 0177) >= ' ' && ch != 0177 && inpdata->inp.len < inpdata->inpmaxlen)
{
- inpdata->inpbuf[inpdata->inplen++] = ch;
+ if (inpdata->inp.len > inpdata->inp.pos)
+ bcopy(p, p+1, inpdata->inp.len - inpdata->inp.pos);
+ inpdata->inp.len++;
+ inpdata->inp.buf[inpdata->inp.pos++] = ch;
+
if (!(inpdata->inpmode & INP_NOECHO))
{
GotoPos(x, STATLINE);
SetRendition(&mchar_so);
- PUTCHAR(ch);
+ PUTCHAR(*p++);
x++;
+ if (p < inpdata->inp.buf+inpdata->inp.len)
+ {
+ while (p < inpdata->inp.buf+inpdata->inp.len)
+ PUTCHAR(*p++);
+ GotoPos(x, STATLINE);
+ }
}
}
- else if ((ch == '\b' || ch == 0177) && inpdata->inplen > 0)
+ else if ((ch == '\b' || ch == 0177) && inpdata->inp.pos > 0)
{
- inpdata->inplen--;
+ if (inpdata->inp.len > inpdata->inp.pos)
+ bcopy(p, p-1, inpdata->inp.len - inpdata->inp.pos);
+ inpdata->inp.len--;
+ inpdata->inp.pos--;
+ p--;
if (!(inpdata->inpmode & 1))
{
x--;
GotoPos(x, STATLINE);
+ SetRendition(&mchar_so);
+ while (p < inpdata->inp.buf+inpdata->inp.len)
+ PUTCHAR(*p++);
SetRendition(&mchar_blank);
PUTCHAR(' ');
GotoPos(x, STATLINE);
}
}
+ else if (ch == '\001' || (unsigned char)ch == 0201) /* CTRL-A */
+ {
+ GotoPos(x -= inpdata->inp.pos, STATLINE);
+ inpdata->inp.pos = 0;
+ }
+ else if ((ch == '\002' || (unsigned char)ch == 0202) && inpdata->inp.pos > 0) /* CTRL-B */
+ {
+ GotoPos(--x, STATLINE);
+ inpdata->inp.pos--;
+ }
+ else if (ch == '\005' || (unsigned char)ch == 0205) /* CTRL-E */
+ {
+ GotoPos(x += inpdata->inp.len - inpdata->inp.pos, STATLINE);
+ inpdata->inp.pos = inpdata->inp.len;
+ }
+ else if ((ch == '\006' || (unsigned char)ch == 0206) && inpdata->inp.pos < inpdata->inp.len) /* CTRL-F */
+ {
+ GotoPos(++x, STATLINE);
+ inpdata->inp.pos++;
+ }
+ else if (ch == '\020' || (unsigned char)ch == 0220) /* CTRL-P */
+ {
+ p = inpdata->inp.buf;
+ GotoPos(inpdata->inpstringlen, STATLINE);
+ SetRendition(&mchar_blank);
+ while (p++ < inpdata->inp.buf+inpdata->inp.len)
+ PUTCHAR(' ');
+
+ inpdata->inp = inphist; /* structure copy */
+ if (inpdata->inp.len > inpdata->inpmaxlen)
+ inpdata->inp.len = inpdata->inpmaxlen;
+ if (inpdata->inp.pos > inpdata->inp.len)
+ inpdata->inp.pos = inpdata->inp.len;
+ x = inpdata->inpstringlen + inpdata->inp.pos;
+
+ p = inpdata->inp.buf;
+ GotoPos(inpdata->inpstringlen, STATLINE);
+ SetRendition(&mchar_so);
+ while (p < inpdata->inp.buf+inpdata->inp.len)
+ PUTCHAR(*p++);
+ GotoPos(x, STATLINE);
+ }
else if (ch == '\004' || ch == '\003' || ch == '\007' || ch == '\033' ||
ch == '\000' || ch == '\n' || ch == '\r')
{
- if (ch != '\033' && ch != '\n' && ch != '\r')
- inpdata->inplen = 0;
- inpdata->inpbuf[inpdata->inplen] = 0;
+ if (ch != '\004' && ch != '\n' && ch != '\r')
+ inpdata->inp.len = 0;
+ inpdata->inp.buf[inpdata->inp.len] = 0;
+
+ if (inpdata->inp.len)
+ inphist = inpdata->inp; /* structure copy */
D_lay->l_data = 0;
InpAbort(); /* redisplays... */
*ppbuf = pbuf;
*plen = len;
if ((inpdata->inpmode & INP_RAW) == 0)
- (*inpdata->inpfinfunc)(inpdata->inpbuf, inpdata->inplen);
+ (*inpdata->inpfinfunc)(inpdata->inp.buf, inpdata->inp.len, inpdata->priv);
else
- (*inpdata->inpfinfunc)(pbuf - 1, 0);
+ (*inpdata->inpfinfunc)(pbuf - 1, 0, inpdata->priv);
free((char *)inpdata);
return;
}
@@ -248,7 +326,7 @@ int y, xs, xe, isblank;
LAY_CALL_UP(RefreshLine(y, xs, xe, isblank));
return;
}
- inpdata->inpbuf[inpdata->inplen] = 0;
+ inpdata->inp.buf[inpdata->inp.len] = 0;
GotoPos(xs, y);
q = xs;
v = xe - xs + 1;
@@ -265,14 +343,14 @@ int y, xs, xe, isblank;
v -= l;
}
s = r;
- r += inpdata->inplen;
+ r += inpdata->inp.len;
if (!(inpdata->inpmode & INP_NOECHO) && v > 0 && q < r)
{
SetRendition(&mchar_so);
l = v;
if (l > r-q)
l = r-q;
- AddStrn(inpdata->inpbuf + q - s, l);
+ AddStrn(inpdata->inp.buf + q - s, l);
q += l;
v -= l;
}
@@ -289,3 +367,12 @@ int y, xs, xe, isblank;
}
SetLastPos(q, y);
}
+
+int
+InInput()
+{
+ if (display && D_layfn->LayProcess == InpProcess)
+ return 1;
+ return 0;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-16 17:22:09 +0000