Make better filenames

1 files changed, 14 insertions, 2 deletions

diff --git a/jt b/jt
index bf62219..8facee5 100755
--- a/jt
+++ b/jt
@@ -20,6 +20,7 @@ import optparse
 import os
 import re
 import shutil
+import string
 import subprocess
 import sys
 import tempfile
@@ -243,15 +244,26 @@ class JournalTool(cliapp.Application):
         if self.settings['layout'] in ('liw', 'ct'):
             basename = time.strftime('%Y-%m-%d-%H:%M:%S')
         elif self.settings['layout'] == 'pkb':
-            basename = self.get_draft_title(draft_mdwn)
-            if not basename:
+            title = self.get_draft_title(draft_mdwn)
+            if not title:
                 raise Exception("%s has no title" % draft_mdwn)
+            basename = self.summarise_title(title)
         else:
             raise Exception(
                 'Setting --layout=%s is unknown' % self.settings['layout'])
 
         return basename
 
+    def summarise_title(self, title):
+        basename = ''
+        acceptable = set(string.ascii_letters + string.digits + '-_')
+        for c in title.lower():
+            if c in acceptable:
+                basename += c
+            elif not basename.endswith('_'):
+                basename += '_'
+        return basename
+
     def cmd_new_person(self, args):
         '''Create a page to list all notes referring to a person.