Sequence validation¶
fqfa implements regular expression-based sequence validators.
There are several commonly-used validators based on IUPAC codes,
as well as a function for creating new callable validators from a string or list of characters.
This create_validator() function can also be used to create case-insensitive versions
of the provided validators.
IUPAC codes¶
fqfa includes the International Union of Pure and Applied Chemistry (IUPAC) notation for degenerate bases. A mapping between single- and three-letter amino acid codes is also included. Validation based on single-letter amino acid codes can be accomplished by using the keys of the mapping.