Add support for partials and path segments for Handlebars.

This introduces support for some missing features to the Handlebars lexer:
Partials and path segments. Partials mostly appeared to work before, but the
`>` in `{{> ... }}` would appear as a syntax error, as could other
components of the partial. This change introduces support for:

* Standard partials: `{{> partialName}}`
* Partials with parameters: `{{> partialName varname="value"}}`
* Ddynamic partials: `{{> (partialFunc)}}`
* Ddynamic partials with lookups: `{{> (lookup ../path "partialName")}}`
* Partial blocks: `{{> @partial-block}}`
* Inline partials: `{{#*inline}}..{{/inline}}`

It also introduces support for path segments, which can reference content in
the current context or in a parent context. For instance, `this.name`,
`this/name`, `./name`, `../name`, `this/name`, etc. These are all now tracked
as variables.

1 files changed, 81 insertions, 0 deletions

diff --git a/tests/test_objectiveclexer.py b/tests/test_objectiveclexer.py
new file mode 100644
index 00000000..90bd680f
--- /dev/null
+++ b/tests/test_objectiveclexer.py
@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+"""
+    Basic CLexer Test
+    ~~~~~~~~~~~~~~~~~
+
+    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import unittest
+import os
+
+from pygments.token import Token
+from pygments.lexers import ObjectiveCLexer
+
+
+class ObjectiveCLexerTest(unittest.TestCase):
+
+    def setUp(self):
+        self.lexer = ObjectiveCLexer()
+
+    def testLiteralNumberInt(self):
+        fragment = u'@(1);\n'
+        expected = [
+            (Token.Literal, u'@('),
+            (Token.Literal.Number.Integer, u'1'),
+            (Token.Literal, u')'),
+            (Token.Punctuation, u';'),
+            (Token.Text, u'\n'),
+        ]
+        self.assertEqual(expected, list(self.lexer.get_tokens(fragment)))
+
+    def testLiteralNumberExpression(self):
+        fragment = u'@(1+2);\n'
+        expected = [
+            (Token.Literal, u'@('),
+            (Token.Literal.Number.Integer, u'1'),
+            (Token.Operator, u'+'),
+            (Token.Literal.Number.Integer, u'2'),
+            (Token.Literal, u')'),
+            (Token.Punctuation, u';'),
+            (Token.Text, u'\n'),
+        ]
+        self.assertEqual(expected, list(self.lexer.get_tokens(fragment)))
+
+    def testLiteralNumberNestedExpression(self):
+        fragment = u'@(1+(2+3));\n'
+        expected = [
+            (Token.Literal, u'@('),
+            (Token.Literal.Number.Integer, u'1'),
+            (Token.Operator, u'+'),
+            (Token.Punctuation, u'('),
+            (Token.Literal.Number.Integer, u'2'),
+            (Token.Operator, u'+'),
+            (Token.Literal.Number.Integer, u'3'),
+            (Token.Punctuation, u')'),
+            (Token.Literal, u')'),
+            (Token.Punctuation, u';'),
+            (Token.Text, u'\n'),
+        ]
+        self.assertEqual(expected, list(self.lexer.get_tokens(fragment)))
+
+    def testLiteralNumberBool(self):
+        fragment = u'@NO;\n'
+        expected = [
+            (Token.Literal.Number, u'@NO'),
+            (Token.Punctuation, u';'),
+            (Token.Text, u'\n'),
+        ]
+        self.assertEqual(expected, list(self.lexer.get_tokens(fragment)))
+
+    def testLieralNumberBoolExpression(self):
+        fragment = u'@(YES);\n'
+        expected = [
+            (Token.Literal, u'@('),
+            (Token.Name.Builtin, u'YES'),
+            (Token.Literal, u')'),
+            (Token.Punctuation, u';'),
+            (Token.Text, u'\n'),
+        ]
+        self.assertEqual(expected, list(self.lexer.get_tokens(fragment)))