Add %sort() and %dribble_merge()

Add %sort(), which binary-sorts a single list of values, and
%dribble_merge(), which takes a quoted length, a separator,
and some expressions and produces a list of lists of values
using the separator, where no list is larger than the length.

1 files changed, 9 insertions, 0 deletions

diff --git a/doc/format-specifiers.txt b/doc/format-specifiers.txt
index 7dca9db..8919d7a 100644
--- a/doc/format-specifiers.txt
+++ b/doc/format-specifiers.txt
@@ -621,3 +621,12 @@ And here's how an example expression evaluates for ''cn=group'':
   %default("%{member}","jim") -> (uid=bob,uid=pete)
   %default("%{membername}","bob") -> (jim)
   %default("%{nosuchvalue}","bob") -> (bob)
+
+=== sort ===
+
+  sort(''EXPRESSION'')
+
+Evaluates ''EXPRESSION'', returning its values if any are produced, sorted by
+binary value.  This is more useful for ensuring consistency than prettiness,
+as the sorting is not case-aware and doesn't recognize numbers.
+