github.com/zerosnake0/jzon@v0.0.9-0.20230801092939-1b135cb83f7f/struct_field_upper.go (about) 1 package jzon 2 3 import ( 4 "unicode" 5 "unicode/utf8" 6 ) 7 8 func toUpper(in, out []byte) []byte { 9 l := len(in) 10 for i := 0; i < l; { 11 r, size := utf8.DecodeRune(in[i:]) 12 fr := unicode.SimpleFold(r) 13 for fr > r { 14 fr = unicode.SimpleFold(fr) 15 } 16 out = appendRune(out, fr) 17 i += size 18 } 19 return out 20 }