fixing dotless i (0x131) problem

[eczmustafa]

a temporary workaround about the issue #573

[halaei]

Your change only fixes one case.
The correct way is toLowerCase(Locale.ENGLISH) or toLowerCase(Locale.ROOT)
Please also consider sending your PR to https://github.com/RonRadtke/react-native-blob-util

[eczmustafa]

thank you for the new link.
toLowerCase(Locale.ENGLISH) should work in theory and this is the professinal way of doing it. yes you right. however, this issue needs to be resolved, ihmo, by manually replacing dotless i (0x131), unfortunately.

On a linux pc these lines give same results:
String txt="ŞĞÜİI";
System.out.println("Locale.ENGLISH: " + txt.toLowerCase(Locale.ENGLISH));
System.out.println("Locale.ROOT: " + txt.toLowerCase(Locale.ROOT));
System.out.println("tr-TR: " + txt.toLowerCase(new Locale("tr-TR")));
System.out.println("default: " + txt.toLowerCase());

Output:
Locale.ENGLISH: şğüi̇i
Locale.ROOT: şğüi̇i
tr-TR: şğüi̇i
default: şğüi̇i

I don't have opportunity to test on Android.