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Validate first byte properly for UTF8

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This commit is contained in:
Alex Beregszaszi 2017-06-16 17:23:11 +01:00
parent 569e0c53f2
commit 6488f7e079
1 changed files with 13 additions and 5 deletions
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18
libdevcore/UTF8.cpp
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@ -85,11 +85,19 @@ bool validateUTF8(std::string const& _input, size_t& _invalidPosition)
continue;
size_t count = 0;
switch(_input[i] & 0xf0) {
case 0xc0: count = 1; break;
case 0xe0: count = 2; break;
case 0xf0: count = 3; break;
default: break;
switch ((unsigned char)_input[i])
{
case 0xc0 ... 0xdf:
count = 1;
break;
case 0xe0 ... 0xef:
count = 2;
break;
case 0xf0 ... 0xf7:
count = 3;
break;
default:
break;
}
if (count == 0)