Add in dicts.

Makefile

@@ -13,7 +13,7 @@ all:
 	@echo ""
 
 
-dev: test flake tox
+dev: test flake
 
 test:
 	nosetests -sv
@@ -32,4 +32,4 @@ d: clear dev
 diff:
 	git diff --color | less -r
 
-r: d diff
+r: d tox diff

hy/lex/states.py

@@ -22,6 +22,7 @@ from hy.models.expression import HyExpression
 from hy.models.integer import HyInteger
 from hy.models.symbol import HySymbol
 from hy.models.string import HyString
+from hy.models.dict import HyDict
 from hy.models.list import HyList
 
 from hy.errors import HyError
@@ -121,6 +122,10 @@ class ListeyThing(State):
             self.machine.sub(Expression)
             return
 
+        if char == "{":
+            self.machine.sub(Dict)
+            return
+
         if char == "[":
             self.machine.sub(List)
             return
@@ -165,6 +170,20 @@ class Expression(ListeyThing):
     end_char = ")"
 
 
+class Dict(ListeyThing):
+    """
+    This state parses a Hy dict for things.
+    """
+
+    def exit(self):
+        self.commit()
+        it = iter(self.nodes)
+        result = dict(zip(it, it))
+        self.result = HyDict(result)
+
+    end_char = "}"
+
+
 class String(State):
     """
     String state. This will handle stuff like:
@@ -205,6 +224,9 @@ class Idle(State):
         if char == "(":
             return Expression
 
+        if char == "{":
+            return Dict
+
         if char == ";":
             return Comment
 

hy/models/dict.py

@@ -0,0 +1,28 @@
+# Copyright (c) 2012 Paul Tagliamonte <paultag@debian.org>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+from hy.models import HyObject
+
+
+class HyDict(HyObject, dict):
+    """
+    HyDict (just a dict)
+    """
+    pass

tests/lex/test_lex.py

@@ -22,6 +22,7 @@ from hy.models.expression import HyExpression
 from hy.models.integer import HyInteger
 from hy.models.symbol import HySymbol
 from hy.models.string import HyString
+from hy.models.dict import HyDict
 
 from hy.lex.states import LexException
 
@@ -115,3 +116,12 @@ def test_lex_line_counting_multi_inner():
 
     assert inner.start_line == 2
     assert inner.start_column == 5
+
+
+def tgest_dicts():
+    """ Ensure that we can tokenize a dict. """
+    objs = tokenize("{foo bar bar baz}")
+    assert objs == [HyDict({
+        "foo": "bar",
+        "bar": "baz"
+    })]