Move the info formatting into its own function.

1 files changed, 20 insertions, 0 deletions

diff --git a/coverage/misc.py b/coverage/misc.py
index 473d7d43..a8773ebf 100644
--- a/coverage/misc.py
+++ b/coverage/misc.py
@@ -138,6 +138,26 @@ class Hasher(object):
         return self.md5.digest()
 
 
+def info_formatter(info):
+    """Produce a sequence of formatted lines from info.
+
+    `info` is a sequence of pairs (label, data).  The produced lines are
+    nicely formatted, ready to print.
+
+    """
+    label_len = max([len(l) for l, d in info]) + 1
+    for label, data in info:
+        if data == []:
+            data = "-none-"
+        if isinstance(data, (list, tuple)):
+            prefix = "%*s:" % (label_len, label)
+            for e in data:
+                yield "%*s %s" % (label_len+1, prefix, e)
+                prefix = ""
+        else:
+            yield "%*s: %s" % (label_len, label, data)
+
+
 class CoverageException(Exception):
     """An exception specific to Coverage."""
     pass