initial commit of multi-type support (only list of strings for now)

1 files changed, 12 insertions, 1 deletions

diff --git a/neb/parser.py b/neb/parser.py
index bbaf7a8..10c6633 100644
--- a/neb/parser.py
+++ b/neb/parser.py
@@ -45,8 +45,19 @@ def parseLiteral(token, prev, tokens):
 
 def parseType(token, prev, tokens):
     # if the next token is a symbol, combine for a type
-    if len(tokens) > 0 and tokens[0].type_ == TokenType.SYMBOL:
+    if tokens[0].type_ == TokenType.SYMBOL:
         return Type(f":{tokens[0].text}"), 2
+    elif tokens[0].type_ == TokenType.OPEN_BRACKET:
+        # 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_BRACKET:
+            raise ParseError("invalid type definition (expecting close bracket)", tokens[1+counter].line)
+        return MultiType(f":[{typ.name}]", typ), counter + 3
+    else:
+        raise ParseError("invalid type definition!", tokens[0].line)
 
 def parse(tokens):
     idx = 0