#104 add list.py

fda-units-service/list.py

+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Sat Dec  4 11:37:19 2021
+
+@author: Cornelia Michlits
+"""
+
+import rdflib
+import re
+g = rdflib.Graph()
+g.namespace_manager.bind('om', 'http://www.ontology-of-units-of-measure.org/resource/om-2/')
+g.parse('onto/om-2.ttl', format='turtle')
+
+om = rdflib.Namespace('http://www.ontology-of-units-of-measure.org/resource/om-2/')
+rdf_schema = rdflib.Namespace('http://www.w3.org/2000/01/rdf-schema#')
+
+def list_units(string):
+    if bool(re.match('^[a-zA-Z0-9]+$',string)): 
+        l_query = """
+        SELECT ?symbol ?name ?comment
+        WHERE {
+            ?unit om:symbol ?symbol .
+            ?unit <http://www.w3.org/2000/01/rdf-schema#label> ?name .
+            ?unit <http://www.w3.org/2000/01/rdf-schema#comment> ?comment .
+            FILTER regex(str(?unit),\""""+string+"""\","i")
+            } LIMIT 10 """
+        qres = g.query(l_query)
+        for row in qres: 
+            print(f"{row.symbol} | {row.name} | {row.comment}")
+    else: 
+        return 'not alphanumeric'
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