preprocessing.rst

Converter with Preprocessing

When simple expansion and contraction aren't enough, and you want to inject global or context-specific rewrite rules, you can wrap a :class:`curies.Converter` and preprocessing rules encoded in an instance of :class:`curies.PreprocessingRules` inside a :class:`curies.PreprocessingConverter`.

For example, you always want to fix legacy references to the OBO_REL namespace:

import curies
from curies import PreprocessingRules, PreprocessingConverter
from curies.wrapped import Rewrites

rules = PreprocessingRules(
    rewrites=Rewrites(
        full={"OBO_REL:is_a": "rdfs:subClassOf"}
    )
)

converter = curies.get_obo_converter()
converter = PreprocessingConverter.from_converter(
    converter, rules=rules
)

>>> converter.parse_curie("OBO_REL:is_a")
ReferenceTuple('rdfs', 'subClassOf')