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Minor improvement to to_utf8

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This commit is contained in:
Nicolay Korslund 2010-09-16 10:24:45 +02:00
parent 004541f5cf
commit 71e5a15298
1 changed files with 21 additions and 5 deletions
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26
components/to_utf8/to_utf8.cpp
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@ -83,12 +83,28 @@ static size_t getLength(const char *arr, const char* input, bool &ascii)
{
ascii = true;
size_t len = 0;
unsigned char inp = *input;
while(inp)
const char* ptr = input;
unsigned char inp = *ptr;
// Do away with the ascii part of the string first (this is almost
// always the entire string.)
while(inp && inp < 128)
inp = *(++ptr);
len += (ptr-input);
// If we're not at the null terminator at this point, then there
// were some non-ascii characters to deal with. Go to slow-mode for
// the rest of the string.
if(inp)
{
if(inp > 127) ascii = false;
len += arr[inp*6];
inp = *(++input);
ascii = false;
while(inp)
{
// Find the translated length of this character in the
// lookup table.
len += arr[inp*6];
inp = *(++ptr);
}
}
return len;
}