def _get_reference_position(isomir):
mut = isomir.split("<STR_LIT::>")[<NUM_LIT:1>]<EOL>if mut == "<STR_LIT:0>":<EOL><INDENT>return mut<EOL><DEDENT>nt, pos = _parse_mut(mut)<EOL>trim5 = isomir.split("<STR_LIT::>")[-<NUM_LIT:2>]<EOL>off = -<NUM_LIT:1> * len(trim5)<EOL>if trim5.islower():<EOL><INDENT>off = len(trim5)<EOL><DEDENT>if trim5 == "<STR_LIT>" or trim5 == "<STR_LIT:0>":<EOL><INDENT>off = <NUM_LIT:0><EOL><DEDENT>return "<STR_LIT>" % (pos + off, nt)<EOL>
Liftover from isomir to reference mature