gsm_coder - GSM 7/8 character strings encoder/decoder for Erlang

It's a GSM 7/8 character strings encoder/decoder for Erlang based on the implementation from Android Open Source Project - https://source.android.com/

Usage

1> application:start(gsm_coder).
ok
2> gsm_coder:utf8_check_gsm7(<<"abcdef">>).
true
3> gsm_coder:sms_text_parts_number(<<"abcdef">>).
1
4> gsm_coder:utf8_to_gsm7(<<"abcdef">>).
<<97,241,152,92,54,3>>
5> gsm_coder:utf8_from_gsm7(<<97,241,152,92,54,3>>).
<<"abcdef">>
6> gsm_coder:utf8_to_gsm8(<<"abcdef">>).            
<<"abcdef">>
7> gsm_coder:utf8_from_gsm8(<<"abcdef">>).
<<"abcdef">>