From 5dd7fa7c8df7f186abda7ac463c44fc70953cc27 Mon Sep 17 00:00:00 2001
From: Chris Jerdonek <chris.jerdonek@gmail.com>
Date: Sat, 5 May 2012 16:23:50 -0700
Subject: Moved the default delimiters into pystache.defaults.

---
 pystache/defaults.py          |  3 +++
 pystache/parser.py            | 20 +++++++++++---------
 pystache/tests/test_parser.py |  3 ++-
 3 files changed, 16 insertions(+), 10 deletions(-)

(limited to 'pystache')

diff --git a/pystache/defaults.py b/pystache/defaults.py
index a510cfe..0a20328 100644
--- a/pystache/defaults.py
+++ b/pystache/defaults.py
@@ -38,6 +38,9 @@ STRING_ENCODING = sys.getdefaultencoding()
 # strings that arise from files.
 FILE_ENCODING = sys.getdefaultencoding()
 
+# The delimiters to start with when parsing.
+DELIMITERS = (u'{{', u'}}')
+
 # How to handle missing tags when rendering a template.
 MISSING_TAGS = MissingTags.ignore
 
diff --git a/pystache/parser.py b/pystache/parser.py
index 5215c64..9bfc30c 100644
--- a/pystache/parser.py
+++ b/pystache/parser.py
@@ -1,39 +1,41 @@
 # coding: utf-8
 
 """
-Provides a class for parsing template strings.
-
-This module is only meant for internal use by the renderengine module.
+Exposes a parse() function to parse template strings.
 
 """
 
 import re
 
+from pystache.defaults import DELIMITERS
 from pystache.parsed import ParsedTemplate
 
 
-DEFAULT_DELIMITERS = (u'{{', u'}}')
 END_OF_LINE_CHARACTERS = [u'\r', u'\n']
 NON_BLANK_RE = re.compile(ur'^(.)', re.M)
 
 
+# TODO: add some unit tests for this.
 def parse(template, delimiters=None):
     """
     Parse a unicode template string and return a ParsedTemplate instance.
 
+    Arguments:
+
+      template: a unicode template string.
+
+      delimiters: a 2-tuple of delimiters.  Defaults to the package default.
+
     """
     parser = _Parser(delimiters)
     return parser.parse(template)
 
 
-def _compile_template_re(delimiters=None):
+def _compile_template_re(delimiters):
     """
     Return a regular expresssion object (re.RegexObject) instance.
 
     """
-    if delimiters is None:
-        delimiters = DEFAULT_DELIMITERS
-
     # The possible tag type characters following the opening tag,
     # excluding "=" and "{".
     tag_types = "!>&/#^"
@@ -184,7 +186,7 @@ class _Parser(object):
 
     def __init__(self, delimiters=None):
         if delimiters is None:
-            delimiters = DEFAULT_DELIMITERS
+            delimiters = DELIMITERS
 
         self._delimiters = delimiters
 
diff --git a/pystache/tests/test_parser.py b/pystache/tests/test_parser.py
index 4aa0959..92248ea 100644
--- a/pystache/tests/test_parser.py
+++ b/pystache/tests/test_parser.py
@@ -7,6 +7,7 @@ Unit tests of parser.py.
 
 import unittest
 
+from pystache.defaults import DELIMITERS
 from pystache.parser import _compile_template_re as make_re
 
 
@@ -19,7 +20,7 @@ class RegularExpressionTestCase(unittest.TestCase):
         Test getting a key from a dictionary.
 
         """
-        re = make_re()
+        re = make_re(DELIMITERS)
         match = re.search("b  {{test}}")
 
         self.assertEqual(match.start(), 1)
-- 
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