Add path and path_natural sort orders

(cherry picked from commit 272e0b2f17)

IkiWiki.pm

@@ -2808,6 +2808,7 @@ sub cmp_title {
 	IkiWiki::pagetitle(IkiWiki::basename($b))
 }
 
+sub cmp_path { IkiWiki::pagetitle($a) cmp IkiWiki::pagetitle($b) }
 sub cmp_mtime { $IkiWiki::pagemtime{$b} <=> $IkiWiki::pagemtime{$a} }
 sub cmp_age { $IkiWiki::pagectime{$b} <=> $IkiWiki::pagectime{$a} }
 

IkiWiki/Plugin/sortnaturally.pm

@@ -30,4 +30,9 @@ sub cmp_title_natural {
 		IkiWiki::pagetitle(IkiWiki::basename($b)))
 }
 
+sub cmp_path_natural {
+	Sort::Naturally::ncmp(IkiWiki::pagetitle($a),
+		IkiWiki::pagetitle($b))
+}
+
 1;

doc/ikiwiki/pagespec/sorting.mdwn

@@ -7,10 +7,14 @@ orders can be specified.
 
 * `mtime` - List pages with the most recently modified first.
 
-* `title` - Order by title (page name).
+* `title` - Order by title (page name), e.g. "z/a a/b a/c"
+
+* `path` - Order by page name including parents, e.g. "a/b a/c z/a"
 [[!if test="enabled(sortnaturally)" then="""
 * `title_natural` - Orders by title, but numbers in the title are treated
   as such, ("1 2 9 10 20" instead of "1 10 2 20 9")
+
+* `path_natural` - Like `path`, but numbers in the title are treated as such
 """]]
 [[!if test="enabled(meta)" then="""
 * `meta(title)` - Order according to the `\[[!meta title="foo" sortas="bar"]]`