[text] Adding utils.py for is_numeric/is_numeric_strict

scripts/geodata/text/utils.py

@@ -0,0 +1,12 @@
+from geodata.text.tokenize import tokenize
+from geodata.text.token_types import token_types
+
+
+def is_numeric(s):
+    tokens = tokenize(s)
+    return sum((1 for t, c in tokens if c in token_types.NUMERIC_TOKEN_TYPES)) == len(tokens)
+
+
+def is_numeric_strict(s):
+    tokens = tokenize(s)
+    return sum((1 for t, c in tokens if c == token_types.NUMERIC)) == len(tokens)