Parses an RDP reference FASTA file.
parse_rdp(input = NULL, file = NULL, include_seqs = TRUE, add_species = FALSE)(character) One of the following:
See the example below for what this
  looks like. The parser read_fasta produces output like this.
Each vector should have one base per element.
This is the result of parsers like
  read.FASTA.
This is the result of parsers like
  read.fasta.
The path to a FASTA file containing sequences to use. Either "input" or "file" must be supplied but not both.
(logical of length 1) If TRUE, include 
sequences in the output object.
(logical of length 1) If TRUE, add the
species information to the taxonomy. In this database, the species name
often contains other information as well.
The input file has a format like:
>S000448483 Sparassis crispa; MBUH-PIRJO&ILKKA94-1587/ss5 Lineage=Root;rootrank;Fun... ggattcccctagtaactgcgagtgaagcgggaagagctcaaatttaaaatctggcggcgtcctcgtcgtccgagttgtaa tctggagaagcgacatccgcgctggaccgtgtacaagtctcttggaaaagagcgtcgtagagggtgacaatcccgtcttt ...
Other parsers: 
parse_dada2(),
parse_edge_list(),
parse_greengenes(),
parse_mothur_tax_summary(),
parse_mothur_taxonomy(),
parse_newick(),
parse_phyloseq(),
parse_phylo(),
parse_qiime_biom(),
parse_silva_fasta(),
parse_ubiome(),
parse_unite_general()