ref: added logic to fallback to ahocode

- made changes in match_unknown.py and match_aho.py to fallback to ahocode.

Signed-off-by: 35C4n0r <jaykumar20march@gmail.com>

setup.cfg

@@ -65,6 +65,7 @@ python_requires = >=3.7
 install_requires =
     attrs >= 18.1,!=20.1.0;python_version<'3.11'
     attrs >= 22.1.0;python_version>='3.11'
+    ahocode
     Beautifulsoup4 >= 4.0.0
     boolean.py >= 4.0
     chardet >= 3.0.0

src/licensedcode/match_aho.py

@@ -9,7 +9,10 @@
 
 from itertools import groupby
 
-import ahocorasick
+try:
+    import ahocorasick
+except ImportError:
+    import ahocode
 
 from licensedcode import SMALL_RULE
 from licensedcode.match import LicenseMatch

src/licensedcode/match_unknown.py

@@ -7,7 +7,10 @@
 # See https://aboutcode.org for more information about nexB OSS projects.
 #
 
-import ahocorasick
+try:
+    import ahocorasick
+except ImportError:
+    import ahocode
 
 from licensedcode import tokenize
 from licensedcode.models import UnknownRule