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Handle UTF in long filenames (#20087)

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Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
This commit is contained in:
LinFor
2020-11-11 23:14:39 +03:00
committed by GitHub
parent 0465e0ae3a
commit 5b9aeb2e5f
5 changed files with 124 additions and 100 deletions
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48
buildroot/share/fonts/genpages.c
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@ -71,63 +71,49 @@ uint8_t* get_utf8_value(uint8_t *pstart, wchar_t *pval) {
assert(NULL != pstart);
#define NEXT_6_BITS() do{ val <<= 6; p++; val |= (*p & 0x3F); }while(0)
if (0 == (0x80 & *p)) {
val = (size_t)*p;
p++;
}
else if (0xC0 == (0xE0 & *p)) {
val = *p & 0x1F;
val <<= 6;
p++;
val |= (*p & 0x3F);
NEXT_6_BITS();
p++;
assert((wchar_t)val == get_val_utf82uni(pstart));
}
else if (0xE0 == (0xF0 & *p)) {
val = *p & 0x0F;
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
NEXT_6_BITS();
NEXT_6_BITS();
p++;
assert((wchar_t)val == get_val_utf82uni(pstart));
}
else if (0xF0 == (0xF8 & *p)) {
val = *p & 0x07;
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
p++;
assert((wchar_t)val == get_val_utf82uni(pstart));
}
else if (0xF8 == (0xFC & *p)) {
val = *p & 0x03;
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
p++;
assert((wchar_t)val == get_val_utf82uni(pstart));
}
else if (0xFC == (0xFE & *p)) {
val = *p & 0x01;
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
val <<= 6; p++;
val |= (*p & 0x3F);
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
NEXT_6_BITS();
p++;
assert((wchar_t)val == get_val_utf82uni(pstart));
}