Author: tlinnet
Date: Wed Sep 3 22:50:46 2014
New Revision: 25609
URL: http://svn.gna.org/viewcvs/relax?rev=25609&view=rev
Log:
Added function to lib.io to sort a list of filenames into human-understandable
alphanumeric order.
Modified:
trunk/lib/io.py
Modified: trunk/lib/io.py
URL:
http://svn.gna.org/viewcvs/relax/trunk/lib/io.py?rev=25609&r1=25608&r2=25609&view=diff
==============================================================================
--- trunk/lib/io.py (original)
+++ trunk/lib/io.py Wed Sep 3 22:50:46 2014
@@ -37,7 +37,7 @@
from os import devnull
from os import F_OK, X_OK, access, altsep, getenv, makedirs, pathsep, remove,
sep
from os.path import expanduser, basename, splitext, isfile
-from re import search
+from re import search, split
from sys import stdin, stdout, stderr
from warnings import warn
@@ -480,6 +480,31 @@
return file_obj
+def sort_filenames(filenames=None, rev=False):
+ """Sort the given list in alphanumeric order. Should be equivalent to
unix 'ls -n' command.
+
+ @keyword filenames: The list of filenames
+ @type l: list of strings
+ @keyword rev: Flag, if the list should be reverted
+ @type rev: boold
+ """
+
+ # Define function to convert to integers if text is digit.
+ convert = lambda text: int(text) if text.isdigit() else text
+
+ # Define function to create key for sorting.
+ alphanum_key = lambda key: [ convert(c) for c in split('([0-9]+)', key) ]
+
+ # Now sort according to key.
+ filenames.sort( key=alphanum_key )
+
+ # Reverse the list if needed.
+ if rev:
+ return reversed(filenames)
+ else:
+ return filenames
+
+
def strip(data, comments=True):
"""Remove all comment and empty lines from the file data structure.
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