continuing

src/SmartRegexpFactory.py

@@ -0,0 +1,19 @@
+import re
+
+
+# adapted from function _fnFilterCreateSearch() defined in https://github.com/DataTables/DataTablesSrc/blob/master/js/core/core.filter.js
+class SmartRegexpFactory:
+
+    def createSmartRegexp(self, searchTerm):
+        return re.compile(
+            rf'^{self.assertContainsWords(self.getWords(searchTerm))}.*$',
+            flags=re.IGNORECASE)
+
+    def getWords(self, searchTerm):
+        return [re.escape(word) for word in re.split(r'\s+', searchTerm)]
+
+    def assertContainsWords(self, words):
+        return ''.join([self.assertContainsWord(word) for word in words])
+
+    def assertContainsWord(self, word):
+        return f'(?=.*?{word})'