bin/feed: add i18n handling

* bin/feed (slug): Add regex to detect ISO 639-1 string. Return unique
name, slug and the ISO 639-1 string. The third value returned is None
when is there no ISO 639- string in the file name.
(elink): Add argument `l` -- ISO 639-1 string. Append it to the URL if
it is not None.
(entry): Update slug and elink calls.

1 files changed, 10 insertions, 7 deletions

diff --git a/bin/feed b/bin/feed
index 8c3e82d..69dff74 100644
--- a/bin/feed
+++ b/bin/feed
@@ -77,12 +77,12 @@ def write(p, c):
 
 
 def slug(p):
-    m = re.search(r'([a-zA-Z\-]+)\.md', p)
+    m = re.search(r'(([a-zA-Z\-]+)(\.([a-z]{2}))?)\.md', p)
 
     if not m:
         err('Unable to get slug')
 
-    return m.group(1)
+    return m.group(1), m.group(2), m.group(4)
 
 
 def template(type):
@@ -98,8 +98,11 @@ def title(c):
     return m.group(1)
 
 
-def elink(sec, s):
-    return '/'.join([URL, sec, s])
+def elink(sec, s, l):
+    if l is None:
+        return '/'.join([URL, sec, s])
+    else:
+        return '/'.join([URL, sec, s, l])
 
 
 def flink(sec):
@@ -159,15 +162,15 @@ def now():
 
 def entry(sec, f):
     c = read(f.path)
-    s = slug(f.path)
+    u, s, l = slug(f.path)
 
     t = time(c)
-    id = t + ':' + s
+    id = t + ':' + u
 
     e = template('entry')
     e = e.replace(E_PH['id'], id, 1)
     e = e.replace(E_PH['title'], title(c), 1)
-    e = e.replace(E_PH['link'], elink(sec, s), 1)
+    e = e.replace(E_PH['link'], elink(sec, s, l), 1)
     e = e.replace(E_PH['updated'], t, 1)
     e = e.replace(E_PH['content'], content(c), 1)