Home » Archimedes archive » Acorn User » AU 1997-10 A.adf » Extras » Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/string/string
Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/string/string
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1997-10 A.adf » Extras |
| Filename: | Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/string/string |
| Read OK: | ✔ |
| File size: | 0347 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
/* GCW 06/06/94 */
/* convert a number n to a signed string to base b */
string(n,b)
{
local neg,s,d;
if (n == 0) return ("0");
if (neg = (n<0)) n = -n;
s = "";
while (n)
{
d = n%b;
s = ((d<10)?(d +'0'):(d+'W'))+s;
n /= b;
}
return (((neg)?"-":"")+s);
}
/* convert a number n to an unsigned hexadecimal string */
hex(n)
{
local s,byte,top,bottom,b,i,zero;
s = "&";zero = TRUE;i = 4;
b = @(newstring(4));
in b put { n; }
while (i>0 && zero)
{
i--;
if (byte=`(b+i)) zero = FALSE;
}
top = byte/16; bottom = byte%16;
if (top) s += (top<10)?(top+'0'):(top+'W');
s += (bottom<10)?(bottom+'0'):(bottom+'W');
while (i>0)
{
i--; byte = `(b+i); top = byte/16; bottom = byte%16;
s += (top<10)?(top+'0'):(top+'W');
s += (bottom<10)?(bottom+'0'):(bottom+'W');
}
return s;
}
00000000 2f 2a 20 47 43 57 20 20 20 20 20 30 36 2f 30 36 |/* GCW 06/06|
00000010 2f 39 34 20 20 20 2a 2f 0a 2f 2a 20 63 6f 6e 76 |/94 */./* conv|
00000020 65 72 74 20 61 20 6e 75 6d 62 65 72 20 6e 20 74 |ert a number n t|
00000030 6f 20 61 20 73 69 67 6e 65 64 20 73 74 72 69 6e |o a signed strin|
00000040 67 20 74 6f 20 62 61 73 65 20 62 20 2a 2f 0a 0a |g to base b */..|
00000050 73 74 72 69 6e 67 28 6e 2c 62 29 20 20 0a 7b 0a |string(n,b) .{.|
00000060 20 6c 6f 63 61 6c 20 6e 65 67 2c 73 2c 64 3b 0a | local neg,s,d;.|
00000070 20 69 66 20 28 6e 20 3d 3d 20 30 29 20 72 65 74 | if (n == 0) ret|
00000080 75 72 6e 20 28 22 30 22 29 3b 0a 20 69 66 20 28 |urn ("0");. if (|
00000090 6e 65 67 20 3d 20 28 6e 3c 30 29 29 20 6e 20 3d |neg = (n<0)) n =|
000000a0 20 2d 6e 3b 0a 20 73 20 3d 20 22 22 3b 0a 20 77 | -n;. s = "";. w|
000000b0 68 69 6c 65 20 28 6e 29 0a 20 20 20 7b 0a 20 20 |hile (n). {. |
000000c0 20 20 64 20 3d 20 6e 25 62 3b 0a 20 20 20 20 73 | d = n%b;. s|
000000d0 20 3d 20 28 28 64 3c 31 30 29 3f 28 64 20 2b 27 | = ((d<10)?(d +'|
000000e0 30 27 29 3a 28 64 2b 27 57 27 29 29 2b 73 3b 0a |0'):(d+'W'))+s;.|
000000f0 20 20 20 20 6e 20 2f 3d 20 62 3b 0a 20 20 20 7d | n /= b;. }|
00000100 0a 20 72 65 74 75 72 6e 20 28 28 28 6e 65 67 29 |. return (((neg)|
00000110 3f 22 2d 22 3a 22 22 29 2b 73 29 3b 0a 7d 0a 0a |?"-":"")+s);.}..|
00000120 2f 2a 20 63 6f 6e 76 65 72 74 20 61 20 6e 75 6d |/* convert a num|
00000130 62 65 72 20 6e 20 74 6f 20 61 6e 20 75 6e 73 69 |ber n to an unsi|
00000140 67 6e 65 64 20 68 65 78 61 64 65 63 69 6d 61 6c |gned hexadecimal|
00000150 20 73 74 72 69 6e 67 20 2a 2f 0a 68 65 78 28 6e | string */.hex(n|
00000160 29 0a 7b 0a 20 6c 6f 63 61 6c 20 73 2c 62 79 74 |).{. local s,byt|
00000170 65 2c 74 6f 70 2c 62 6f 74 74 6f 6d 2c 62 2c 69 |e,top,bottom,b,i|
00000180 2c 7a 65 72 6f 3b 0a 20 73 20 3d 20 22 26 22 3b |,zero;. s = "&";|
00000190 7a 65 72 6f 20 3d 20 54 52 55 45 3b 69 20 3d 20 |zero = TRUE;i = |
000001a0 34 3b 0a 20 62 20 3d 20 40 28 6e 65 77 73 74 72 |4;. b = @(newstr|
000001b0 69 6e 67 28 34 29 29 3b 0a 20 69 6e 20 62 20 70 |ing(4));. in b p|
000001c0 75 74 20 7b 20 6e 3b 20 7d 0a 20 77 68 69 6c 65 |ut { n; }. while|
000001d0 20 28 69 3e 30 20 26 26 20 7a 65 72 6f 29 0a 20 | (i>0 && zero). |
000001e0 20 20 7b 0a 20 20 20 20 69 2d 2d 3b 0a 20 20 20 | {. i--;. |
000001f0 20 69 66 20 28 62 79 74 65 3d 60 28 62 2b 69 29 | if (byte=`(b+i)|
00000200 29 20 7a 65 72 6f 20 3d 20 46 41 4c 53 45 3b 0a |) zero = FALSE;.|
00000210 20 20 20 7d 0a 20 74 6f 70 20 3d 20 62 79 74 65 | }. top = byte|
00000220 2f 31 36 3b 20 62 6f 74 74 6f 6d 20 3d 20 62 79 |/16; bottom = by|
00000230 74 65 25 31 36 3b 0a 20 69 66 20 28 74 6f 70 29 |te%16;. if (top)|
00000240 20 73 20 2b 3d 20 28 74 6f 70 3c 31 30 29 3f 28 | s += (top<10)?(|
00000250 74 6f 70 2b 27 30 27 29 3a 28 74 6f 70 2b 27 57 |top+'0'):(top+'W|
00000260 27 29 3b 0a 20 73 20 2b 3d 20 28 62 6f 74 74 6f |');. s += (botto|
00000270 6d 3c 31 30 29 3f 28 62 6f 74 74 6f 6d 2b 27 30 |m<10)?(bottom+'0|
00000280 27 29 3a 28 62 6f 74 74 6f 6d 2b 27 57 27 29 3b |'):(bottom+'W');|
00000290 20 0a 20 77 68 69 6c 65 20 28 69 3e 30 29 0a 20 | . while (i>0). |
000002a0 20 20 7b 0a 20 20 20 20 69 2d 2d 3b 20 62 79 74 | {. i--; byt|
000002b0 65 20 3d 20 60 28 62 2b 69 29 3b 20 74 6f 70 20 |e = `(b+i); top |
000002c0 3d 20 62 79 74 65 2f 31 36 3b 20 62 6f 74 74 6f |= byte/16; botto|
000002d0 6d 20 3d 20 62 79 74 65 25 31 36 3b 0a 20 20 20 |m = byte%16;. |
000002e0 20 73 20 2b 3d 20 28 74 6f 70 3c 31 30 29 3f 28 | s += (top<10)?(|
000002f0 74 6f 70 2b 27 30 27 29 3a 28 74 6f 70 2b 27 57 |top+'0'):(top+'W|
00000300 27 29 3b 0a 20 20 20 20 73 20 2b 3d 20 28 62 6f |');. s += (bo|
00000310 74 74 6f 6d 3c 31 30 29 3f 28 62 6f 74 74 6f 6d |ttom<10)?(bottom|
00000320 2b 27 30 27 29 3a 28 62 6f 74 74 6f 6d 2b 27 57 |+'0'):(bottom+'W|
00000330 27 29 3b 0a 20 20 20 7d 0a 20 72 65 74 75 72 6e |');. }. return|
00000340 20 73 3b 0a 7d 20 0a | s;.} .|
00000347 
.