implement {} syntax for non-empty lists

1 files changed, 11 insertions, 0 deletions

diff --git a/neb/parser.py b/neb/parser.py
index 930e77e..81f7672 100644
--- a/neb/parser.py
+++ b/neb/parser.py
@@ -160,6 +160,17 @@ def parseType(token, prev, tokens):
         if tokens[1+counter].type_ != TokenType.CLOSE_BRACKET:
             raise ParseError("invalid type definition (expecting close bracket)", tokens[1+counter].line)
         return Type(f":[]", typ), counter + 3
+
+    elif tokens[0].type_ == TokenType.OPEN_BRACE:
+        # only format currently supported:
+        # [ <type> ]
+        if tokens[1].type_ != TokenType.COLON:
+            raise ParseError("invalid type definition (expecting colon)", tokens[1].line)
+        typ, counter = parseType(tokens[1], tokens[0], tokens[2:])
+        if tokens[1+counter].type_ != TokenType.CLOSE_BRACE:
+            raise ParseError("invalid type definition (expecting close brace)", tokens[1+counter].line)
+        return Type(":{}", typ), counter + 3
+
     else:
         raise ParseError("invalid type definition!", tokens[0].line)