3 files changed, 29 insertions, 12 deletions
diff --git a/doc/ikiwiki/pagespec.mdwn b/doc/ikiwiki/pagespec.mdwn
index b476bde1f..5f0f44e2e 100644
--- a/doc/ikiwiki/pagespec.mdwn
+++ b/doc/ikiwiki/pagespec.mdwn
@@ -24,17 +24,18 @@ match all pages except for Discussion pages and the SandBox:
 
 Some more elaborate limits can be added to what matches using these functions:
 
-* "`link(page)`" - match only pages that link to a given page (or glob)
-* "`tagged(tag)`" - match pages that are tagged or link to the given tag (or glob)
-* "`backlink(page)`" - match only pages that a given page links to
-* "`creation_month(month)`" - match only pages created on the given month
+* "`link(page)`" - matches only pages that link to a given page (or glob)
+* "`tagged(tag)`" - matches pages that are tagged or link to the given tag (or
+  tags matched by a glob)
+* "`backlink(page)`" - matches only pages that a given page links to
+* "`creation_month(month)`" - matches only pages created on the given month
 * "`creation_day(mday)`" - or day of the month
 * "`creation_year(year)`" - or year
-* "`created_after(page)`" - match only pages created after the given page
+* "`created_after(page)`" - matches only pages created after the given page
   was created
-* "`created_before(page)`" - match only pages created before the given page
+* "`created_before(page)`" - matches only pages created before the given page
   was created
-* "`glob(someglob)`" - match pages that match the given glob. Just writing
+* "`glob(someglob)`" - matches pages that match the given glob. Just writing
   the glob by itself is actually a shorthand for this function.
 * "`internal(glob)`" - like `glob()`, but matches even internal-use 
   pages that globs do not usually match.
diff --git a/doc/ikiwiki/pagespec/attachment.mdwn b/doc/ikiwiki/pagespec/attachment.mdwn
index 344a4a734..419f00ee4 100644
--- a/doc/ikiwiki/pagespec/attachment.mdwn
+++ b/doc/ikiwiki/pagespec/attachment.mdwn
@@ -16,14 +16,14 @@ check all attachments for viruses, something like this could be used:
 The regular [[ikiwiki/PageSpec]] syntax is expanded with the following
 additional tests:
 
-* "`maxsize(size)`" - Tests whether the attachment is no larger than the
+* "`maxsize(size)`" - tests whether the attachment is no larger than the
   specified size. The size defaults to being in bytes, but "kb", "mb", "gb"
   etc can be used to specify the units.
   
-* "`minsize(size)`" - Tests whether the attachment is no smaller than the
+* "`minsize(size)`" - tests whether the attachment is no smaller than the
   specified size.
 
-* "`ispage()`" - Tests whether the attachment will be treated by ikiwiki as a
+* "`ispage()`" - tests whether the attachment will be treated by ikiwiki as a
   wiki page. (Ie, if it has an extension of ".mdwn", or of any other enabled
   page format).
 
@@ -31,7 +31,7 @@ additional tests:
   use `!ispage()` ; if you only want to allow wiki pages to be uploaded
   as attachments, use `ispage()`.
 
-* "`mimetype(foo/bar)`" - This checks the MIME type of the attachment. You can
+* "`mimetype(foo/bar)`" - checks the MIME type of the attachment. You can
   include a glob in the type, for example `mimetype(image/*)`.
 
-* "`virusfree()`" - Checks the attachment with an antiviral program.
+* "`virusfree()`" - checks the attachment with an antiviral program.
diff --git a/doc/ikiwiki/pagespec/po.mdwn b/doc/ikiwiki/pagespec/po.mdwn
new file mode 100644
index 000000000..e0264dd50
--- /dev/null
+++ b/doc/ikiwiki/pagespec/po.mdwn
@@ -0,0 +1,16 @@
+[[!if test="enabled(po)"
+     then="This wiki has po support **enabled**."
+     else="This wiki has po support **disabled**."]]
+
+If the [[!iki plugins/po desc=po]] plugin is enabled, the regular
+[[ikiwiki/PageSpec]] syntax is expanded with the following additional
+tests that can be used to improve user navigation in a multi-lingual
+wiki:
+
+* "`lang(LL)`" - tests whether a page is written in the language
+  specified as a ISO639-1 (two-letter) language code.
+* "`currentlang()`" - tests whether a page is written in the same
+  language as the current page.
+
+Note that every non-po page is considered to be written in
+`po_master_language`, as specified in `ikiwiki.setup`.