mirror of
https://github.com/reactos/reactos.git
synced 2024-12-30 11:02:49 +00:00
452 lines
6.8 KiB
C
452 lines
6.8 KiB
C
/* Copyright 1998 DJ Delorie <dj@delorie.com>
|
|
Distributed under the terms of the GNU GPL
|
|
http://www.delorie.com/store/hcalc/
|
|
*/
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
|
|
extern void set_bits(int);
|
|
extern void set_string(char *);
|
|
extern void do_exit(int);
|
|
|
|
#ifdef GNUC
|
|
#define longlong long long
|
|
#else
|
|
#define longlong __int64
|
|
#define XBell(d,v) 1
|
|
#endif
|
|
|
|
char pending_op = 0;
|
|
int making_number = 0;
|
|
int base = 10;
|
|
|
|
#define MAXIN 40
|
|
|
|
char input_buf[MAXIN];
|
|
int iptr;
|
|
double value, saved, stored=0;
|
|
|
|
void
|
|
convert_number()
|
|
{
|
|
char *ip = input_buf;
|
|
double scale = 1;
|
|
int sign = +1;
|
|
|
|
if (*ip == '-')
|
|
sign = -1;
|
|
value = 0;
|
|
while (*++ip)
|
|
{
|
|
if (*ip == '.')
|
|
break;
|
|
if (*ip >= '0' && *ip <= '9')
|
|
{
|
|
value *= base;
|
|
value += *ip-'0';
|
|
}
|
|
if (*ip >= 'a' && *ip <= 'f')
|
|
{
|
|
value *= base;
|
|
value += *ip-'a'+10;
|
|
}
|
|
}
|
|
if (*ip)
|
|
while (*++ip)
|
|
{
|
|
if (*ip >= '0' && *ip <= '9')
|
|
{
|
|
scale *= base;
|
|
value += (*ip-'0')/scale;
|
|
}
|
|
if (*ip >= 'a' && *ip <= 'f')
|
|
{
|
|
scale *= base;
|
|
value += (*ip-'a'+10)/scale;
|
|
}
|
|
}
|
|
value *= sign;
|
|
}
|
|
|
|
void
|
|
show_value()
|
|
{
|
|
char tmp[20], *tp;
|
|
char commas[40], *cp, *dp;
|
|
double v = value;
|
|
|
|
if (base == 2)
|
|
{
|
|
int q = (unsigned int)((longlong)v & 0xffffffffL);
|
|
set_bits(q);
|
|
return;
|
|
}
|
|
|
|
tmp[0] = ' ';
|
|
if (v < 0)
|
|
{
|
|
tmp[0] = '-';
|
|
v = -v;
|
|
}
|
|
|
|
if (base == 10)
|
|
{
|
|
sprintf(tmp+1, "%.14G", v);
|
|
if (strchr(tmp+1, 'E'))
|
|
sprintf(tmp+1, "%.9G", v);
|
|
if (tmp[14] == '.')
|
|
tmp[14] = 0;
|
|
}
|
|
else
|
|
{
|
|
static char tohex[] = "0123456789ABCDEF";
|
|
longlong ll = (longlong)v;
|
|
char *revptr;
|
|
tp = tmp+1;
|
|
if (base == 16)
|
|
{
|
|
*tp++ = '0';
|
|
*tp++ = 'x';
|
|
}
|
|
else if (base == 8)
|
|
*tp++ = '0';
|
|
|
|
revptr = tp;
|
|
do {
|
|
*tp++ = tohex[ll%base];
|
|
ll /= base;
|
|
} while (ll);
|
|
*tp-- = 0;
|
|
while (revptr < tp) {
|
|
char t = *revptr;
|
|
*revptr = *tp;
|
|
*tp = t;
|
|
tp--;
|
|
revptr++;
|
|
}
|
|
}
|
|
|
|
cp = commas+40;
|
|
tp = tmp+strlen(tmp);
|
|
dp = strchr(tmp, '.');
|
|
if (dp == 0)
|
|
dp = tp;
|
|
|
|
*--cp = 0;
|
|
while (tp>=tmp)
|
|
{
|
|
*--cp = *tp--;
|
|
switch (base)
|
|
{
|
|
case 10:
|
|
if (isdigit(cp[0]) && isdigit(cp[1]) && isdigit(cp[2]) && tp<dp
|
|
&& tp>=tmp && isdigit(*tp))
|
|
*--cp = ',';
|
|
break;
|
|
case 16:
|
|
if (isxdigit(cp[0]) && isxdigit(cp[1])
|
|
&& isxdigit(cp[2]) && isxdigit(cp[3])
|
|
&& tp>=tmp && isxdigit(*tp))
|
|
*--cp = ',';
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (strlen(cp) > 15)
|
|
set_string(tmp);
|
|
else
|
|
set_string(cp);
|
|
}
|
|
|
|
void
|
|
end_number()
|
|
{
|
|
if (!making_number)
|
|
return;
|
|
making_number = 0;
|
|
iptr = 0;
|
|
|
|
switch (pending_op)
|
|
{
|
|
case '+':
|
|
value = saved + value;
|
|
break;
|
|
case '-':
|
|
value = saved - value;
|
|
break;
|
|
case '*':
|
|
value = saved * value;
|
|
break;
|
|
case '/':
|
|
value = saved / value;
|
|
break;
|
|
case '&':
|
|
value = (double)((longlong)saved & (longlong)value);
|
|
break;
|
|
case '|':
|
|
value = (double)((longlong)saved | (longlong)value);
|
|
break;
|
|
case '^':
|
|
value = (double)((longlong)saved ^ (longlong)value);
|
|
break;
|
|
case 'S':
|
|
if (value < 0)
|
|
value = (double)((longlong)saved >> (longlong)(-value));
|
|
else
|
|
value = (double)((longlong)saved << (longlong)value);
|
|
break;
|
|
}
|
|
saved = value;
|
|
pending_op = 0;
|
|
show_value();
|
|
}
|
|
|
|
void
|
|
start_number()
|
|
{
|
|
if (making_number)
|
|
return;
|
|
|
|
iptr = 1;
|
|
input_buf[0] = ' ';
|
|
input_buf[1] = 0;
|
|
making_number = 1;
|
|
}
|
|
|
|
void
|
|
key(char c)
|
|
{
|
|
int v = c;
|
|
/* printf("key %c\n", c); */
|
|
|
|
switch (c)
|
|
{
|
|
case 27:
|
|
making_number = 0;
|
|
iptr = 0;
|
|
pending_op = 0;
|
|
value = saved = 0;
|
|
set_string("");
|
|
break;
|
|
case 'u':
|
|
if (making_number)
|
|
{
|
|
making_number = 0;
|
|
set_string("");
|
|
}
|
|
break;
|
|
|
|
case 'a':
|
|
case 'b':
|
|
case 'c':
|
|
case 'd':
|
|
case 'e':
|
|
case 'f':
|
|
v = c - 'a' - '9' - 1;
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
v -= '0';
|
|
if (v >= base || iptr == MAXIN-1)
|
|
XBell(display, 0);
|
|
else
|
|
{
|
|
start_number();
|
|
input_buf[iptr++] = c;
|
|
input_buf[iptr] = 0;
|
|
convert_number();
|
|
show_value();
|
|
}
|
|
break;
|
|
case '.':
|
|
if (strchr(input_buf, '.'))
|
|
{
|
|
XBell(display, 0);
|
|
break;
|
|
}
|
|
case ',':
|
|
if (iptr == 1 || iptr == MAXIN-1)
|
|
XBell(display, 0);
|
|
else
|
|
{
|
|
start_number();
|
|
input_buf[iptr++] = c;
|
|
input_buf[iptr] = 0;
|
|
convert_number();
|
|
show_value();
|
|
}
|
|
break;
|
|
|
|
case 8:
|
|
if (iptr == 1)
|
|
XBell(display, 0);
|
|
else
|
|
{
|
|
input_buf[--iptr] = 0;
|
|
convert_number();
|
|
show_value();
|
|
}
|
|
break;
|
|
|
|
case '_': /* +/- */
|
|
if (making_number)
|
|
{
|
|
if (input_buf[0] == '-')
|
|
input_buf[0] = ' ';
|
|
else
|
|
input_buf[0] = '-';
|
|
convert_number();
|
|
show_value();
|
|
}
|
|
else
|
|
{
|
|
value *= -1.0;
|
|
saved *= -1.0;
|
|
show_value();
|
|
}
|
|
break;
|
|
|
|
case 'D':
|
|
end_number();
|
|
base = 10;
|
|
show_value();
|
|
break;
|
|
case 'H':
|
|
end_number();
|
|
base = 16;
|
|
show_value();
|
|
break;
|
|
case 'O':
|
|
end_number();
|
|
base = 8;
|
|
show_value();
|
|
break;
|
|
case 'B':
|
|
end_number();
|
|
base = 2;
|
|
show_value();
|
|
break;
|
|
|
|
case 'x':
|
|
c = '*';
|
|
case '+':
|
|
case '-':
|
|
case '*':
|
|
case '/':
|
|
case '^':
|
|
case '&':
|
|
case '|':
|
|
case 'S':
|
|
case '=':
|
|
end_number();
|
|
pending_op = c;
|
|
break;
|
|
|
|
case 13:
|
|
case 10:
|
|
end_number();
|
|
break;
|
|
|
|
case '~':
|
|
end_number();
|
|
value = (double)(~(longlong)value);
|
|
show_value();
|
|
break;
|
|
|
|
case '<':
|
|
end_number();
|
|
value = (double)((longlong)value << 1);
|
|
show_value();
|
|
break;
|
|
|
|
case '>':
|
|
end_number();
|
|
value = (double)((longlong)value >> 1);
|
|
show_value();
|
|
break;
|
|
|
|
case '[': /* STO */
|
|
stored = value;
|
|
break;
|
|
case ']': /* RCL */
|
|
value = stored;
|
|
show_value();
|
|
making_number = 1;
|
|
iptr = 1;
|
|
input_buf[0] = ' ';
|
|
break;
|
|
case '}': /* SUM */
|
|
stored += value;
|
|
break;
|
|
|
|
case 'P': /* click on the display itself */
|
|
break;
|
|
}
|
|
}
|
|
|
|
static char *bmap[] = {
|
|
"PPPP\033",
|
|
"DHOB\010",
|
|
"[]}<>",
|
|
"Sdef/",
|
|
"~abc*",
|
|
"|789-",
|
|
"&456+",
|
|
"^123=",
|
|
"u0._="
|
|
};
|
|
|
|
#if 0
|
|
void
|
|
copy()
|
|
{
|
|
XSetSelectionOwner(display, XA_PRIMARY, window, event.xbutton.time);
|
|
}
|
|
|
|
void
|
|
paste()
|
|
{
|
|
XConvertSelection(display, XA_PRIMARY, XA_STRING, paste_atom, window,
|
|
event.xbutton.time);
|
|
}
|
|
|
|
void
|
|
complete_paste(char *s, int n)
|
|
{
|
|
int i;
|
|
for (i=0; i<n; i++)
|
|
key(s[i]);
|
|
|
|
}
|
|
#endif
|
|
|
|
void
|
|
button(int b, int x, int y)
|
|
{
|
|
x = (x-2)/24;
|
|
if (x < 0) x = 0;
|
|
if (x > 4) x = 4;
|
|
y = (y-1)/16;
|
|
if (y < 0) y = 0;
|
|
if (y > 8) y = 8;
|
|
|
|
if (bmap[y][x] == 27 && b == 3)
|
|
do_exit(0);
|
|
|
|
#if 0
|
|
if (bmap[y][x] == 'P' && b == 1)
|
|
copy();
|
|
if (bmap[y][x] == 'P' && b != 1)
|
|
paste();
|
|
#endif
|
|
|
|
key(bmap[y][x]);
|
|
}
|