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Update functions.py #84

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12 changes: 2 additions & 10 deletions eql/functions.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
"""EQL functions."""
import re
import fnmatch

from .errors import EqlError
from .signatures import SignatureMixin
Expand Down Expand Up @@ -555,18 +556,9 @@ class Wildcard(FunctionSignature):
def to_regex(cls, *wildcards):
"""Convert a list of wildcards to a regular expression."""
expressions = []
head = "^"
tail = "$"

for wildcard in wildcards:
pieces = [re.escape(p) for p in fold_case(wildcard).split('*')]
regex = head + '.*?'.join(pieces) + tail

tail_skip = '.*?$'

if regex.endswith(tail_skip):
regex = regex[:-len(tail_skip)]
expressions.append(regex)
expressions.append(fnmatch.translate(wildcard))

return "|".join(expressions)

Expand Down