ucs4_t
ft_multibyte_to_unicode(const char *mb, size_t mb_len, int *consumedp,
enum me_fail *errorp)
{
int local_cp = appres.local_cp;
ucs4_t rc;
appres.local_cp = ftc->windows_codepage;
rc = multibyte_to_unicode(mb, mb_len, consumedp, errorp);
appres.local_cp = local_cp;
return rc;
}
/*
* Clean up a string for display (undo what parse_xrm does).
*/
char *
safe_string(const char *s)
{
char *t = Malloc(1);
int tlen = 1;
*t = '\0';
/*
* Translate the string to UCS4 a character at a time.
* If the result is a control code or backslash, expand it.
* Otherwise, translate it back to the local encoding and
* append it to the output.
*/
while (*s) {
ucs4_t u;
int consumed;
enum me_fail error;
u = multibyte_to_unicode(s, strlen(s), &consumed, &error);
if (u == 0)
break;
if (u < ' ') {
char c = 0;
int inc = 0;
switch (u) {
case '\b':
c = 'b';
inc = 2;
break;
case '\f':
c = 'f';
inc = 2;
break;
case '\n':
c = 'n';
inc = 2;
break;
case '\r':
c = 'r';
inc = 2;
break;
case '\t':
c = 't';
inc = 2;
break;
default:
inc = 6;
break;
}
t = Realloc(t, tlen + inc);
if (inc == 2) {
*(t + tlen - 1) = '\\';
*(t + tlen) = c;
} else {
sprintf(t, "\\u%04x", u);
}
tlen += inc;
} else {
t = Realloc(t, tlen + consumed);
memcpy(t + tlen - 1, s, consumed);
tlen += consumed;
}
s += consumed;
}
*(t + tlen - 1) = '\0';
return t;
}
