fix #20

Aluriak · Nov 15, 2019 · fe41075 · fe41075
1 parent 5128f8c
commit fe41075
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/clyngor/answers.py b/clyngor/answers.py
@@ -12,7 +12,7 @@ def naive_parsing_of_answer_set(answer_set:str, *, discard_quotes:bool=False, pa
     """Yield (pred, args), naively parsed from given answer set encoded as clingo output string.
     Some atoms may be missing. Some others may be poorly parsed."""
     # print('NAIVE_PARSING_OF_ANSWER_SET:', answer_set, f'\t discard_quotes={discard_quotes}, parse_int={parse_int}, parse_args={parse_args}')
-    REG_ANSWER_SET = re.compile(r'([a-z][a-zA-Z0-9_]*|[0-9]+|"[^"]*")(\([^)]+\))?')
+    REG_ANSWER_SET = re.compile(r'([a-z_][a-zA-Z0-9_]*|[0-9]+|"[^"]*")(\([^)]+\))?')
 
     for match in REG_ANSWER_SET.finditer(answer_set):
         pred, args = match.groups()

diff --git a/clyngor/parsing.py b/clyngor/parsing.py
@@ -70,7 +70,7 @@ def visit_terms(self, node, children):
 
     @staticmethod
     def grammar():
-        def ident():      return ap.RegExMatch(r'[a-z][a-zA-Z0-9_]*')
+        def ident():      return ap.RegExMatch(r'[a-z_][a-zA-Z0-9_]*')
         def number():     return ap.RegExMatch(r'-?[0-9]+')
         def text():       return '"', ap.RegExMatch(r'((\\")|([^"]))*'), '"'
         def litteral():   return [text, number]