ruby_enc_find_extname 230 ext/pathname/pathname.c ext = ruby_enc_find_extname(p, &extlen, rb_enc_get(str)); ruby_enc_find_extname 4263 file.c e = ruby_enc_find_extname(name, &len, rb_enc_get(fname)); ruby_enc_find_extname 282 include/ruby/encoding.h const char *ruby_enc_find_extname(const char *name, long *len, rb_encoding *enc);