From dfd3da4da5477ad64c16eb5564c3754af4df0f79 Mon Sep 17 00:00:00 2001
From: Till Maas <opensource@till.name>
Date: Thu, 30 Jan 2014 18:31:58 +0100
Subject: package_list: Start to document default regex

---
 cnucnu/package_list.py | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/cnucnu/package_list.py b/cnucnu/package_list.py
index 6f643cd..10f0845 100755
--- a/cnucnu/package_list.py
+++ b/cnucnu/package_list.py
@@ -188,15 +188,16 @@ class Package(object):
                 # strip "ghc-" prefix only if name was not overridden
                 if not name_override and name.startswith("ghc-"):
                     name = name[len("ghc-"):]
-            regex = \
-                r"\b%s[-_]" % re.escape(name)    + \
-                r"(?i)"                          + \
-                r"(?:(?:src|source)[-_])?"       + \
-                r"([^-/_\s]*?"                   + \
-                r"\d"                            + \
-                r"[^-/_\s]*?)"                   + \
-                r"(?:[-_.](?:src|source|orig))?" + \
-                r"\.(?:[jt]ar|t[bglx]z|tbz2|zip)\b"
+            regex = (
+                r"(?i)"  # ignore case
+                r"\b%(name)s[-_]"  # word-boundary, name and dash/underscore
+                r"(?:(?:src|source)[-_])?"  # optional src or source string
+                r"([^-/_\s]*?"  #
+                r"\d"
+                r"[^-/_\s]*?)"
+                r"(?:[-_.](?:src|source|orig))?"
+                r"\.(?:[jt]ar|t[bglx]z|tbz2|zip)\b" % {'name': re.escape(name)}
+            )
         elif regex == "FM-DEFAULT":
             regex = '<a href="/projects/[^/]*/releases/[0-9]*">([^<]*)</a>'
         elif regex == "DIR-LISTING-DEFAULT":
-- 
cgit