regex_compile()#

relationalai.std.strings
regex_compile(regex: str | Producer) -> Expression

Compiles a regular expression. The compiled expression may be used in subsequent calls to regex_match. Must be called in a rule or query context.

Parameters#

NameTypeDescription
regexstr or ProducerA string containing a regular expression.

Returns#

An Expression object.

Example#

import relationalai as rai
from relationalai.std.strings import regex_match, regex_compile

# Create a model named "people" with a Person type.
model = rai.Model("people")
Person = model.Type("Person")

# Add some people to the model.
with model.rule():
    alice = Person.add(name="Alice")
    bob = Person.add(name="Bob")

# Get all people whose name ends with "ice".
with model.query() as select:
    person = Person()
    pattern = regex_compile(r"Ali.*")
    regex_match(person.name, pattern)
    response = select(person.name)

print(response.results)
# Output:
#     name
# 0  Alice

See Also#