utf8.cpp File Reference

#include <utf8.h>
#include <ki_exception.h>
#include <wx/strconv.h>
#include <wx/buffer.h>
#include <vector>
#include <cassert>

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Functions
bool	IsUTF8 (const char *aString)
	Test a C string to see if it is UTF8 encoded. More...

Function Documentation

IsUTF8()

bool IsUTF8

(

const char *

aString

)

Test a C string to see if it is UTF8 encoded.

An ASCII string is a valid UTF8 string.

Definition at line 180 of file utf8.cpp.

{
    int len = strlen( aString );

    if( len )
    {
        const unsigned char* next = (unsigned char*) aString;
        const unsigned char* end  = next + len;

        while( next < end )
        {
            int charLen = UTF8::uni_forward( next, nullptr );

            if( charLen == 0 )
                return false;

            next += charLen;
        }

        // uni_forward() should find the exact end if it is truly UTF8
        if( next > end )
            return false;
    }

    return true;
}

References next(), and UTF8::uni_forward().