get_alignment_ids_from_fasta_filenames: Get the alignment ID from one or more FASTA filenames.
Description
This is done in the same way as BEAST2 does by default.
The files are assumed to be FASTA. If this is not the case, there
may be any kind of error message when calling this function.
One or more FASTA filenames.
Use get_fasta_filename to obtain a testing FASTA filename.
Author
Richèl J.C. Bilderbeek
See Also
Use get_alignment_ids to get the alignment IDs from multiple
kids of files.
Use are_fasta_filenames to
see if the filenames all have a common FASTA filename extension.