macutils/util/backtrans.c

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2018-03-23 00:30:02 +00:00
#include "masks.h"
/* Map a command line given name to a Mac name. If LATIN1 is not defined
the translation is direct, except that \ is handled special. \\ is
translated to \, \ddd (three digits) is translated to the octal code.
If LATIN1 is defined, special care has been taken with the 8 bit chars
to get a proper mapping, if possible. Note: colon is translated to _. */
static char char_mapping[] = {
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
' ', '!', '"', '#', '$', '%', '&', '\'',
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', '_', ';', '<', '=', '>', '?',
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '{', '|', '}', '~', 0177,
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
#ifndef LATIN1
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_',
'_', '_', '_', '_', '_', '_', '_', '_'};
#else /* LATIN1 */
'_', 0301, 0242, 0243, 0327, 0265, '_', 0244,
0254, 0251, '_', 0307, 0302, '_', 0250, '_',
0241, 0261, '_', '_', 0253, '_', 0246, 0245,
'_', '_', '_', 0310, '_', '_', '_', 0300,
0313, 0207, 0211, 0313, 0200, 0201, 0256, 0202,
0217, 0203, 0220, 0221, 0223, 0314, 0224, 0225,
'_', 0204, 0230, 0227, 0231, 0233, 0205, '_',
0257, 0235, 0234, 0236, 0206, '_', '_', 0247,
0210, 0207, 0211, 0213, 0212, 0214, 0276, 0215,
0217, 0216, 0220, 0221, 0223, 0222, 0224, 0225,
'_', 0226, 0230, 0227, 0231, 0233, 0232, 0326,
0277, 0235, 0234, 0236, 0237, '_', '_', 0330};
#endif /* LATIN1 */
void backtrans(macname, name)
char *macname, *name;
{
char *in, *out;
int c, count = 0;
out = macname;
for (in = name; *in; in++){
if(count == 31) {
break;
}
if(*in != '\\') {
*out++ = char_mapping[*in & BYTEMASK];
count++;
continue;
}
in++;
if(*in == 0) {
break;;
}
if(*in < '0' || *in > '9') {
*out++ = char_mapping[*in & BYTEMASK];
count++;
continue;
}
c = *in - '0';
in++;
if(*in < '0' || *in > '9') {
*out++ = c;
count++;
in--;
continue;
}
c = (c << 3) + *in - '0';
in++;
if(*in < '0' || *in > '9') {
*out++ = c;
count++;
in--;
continue;
}
c = (c << 3) + *in - '0';
*out++ = c;
count++;
}
*out++ = 0;
}