From: Mark Wooding <mdw@distorted.org.uk>
Date: Sun, 5 May 2024 01:43:30 +0000 (+0100)
Subject: zone.lisp (split-txt-data): Add documentation.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/zone/commitdiff_plain/b5746aa40ba5c7a756538ec06a884df8d3a4b531?ds=sidebyside

zone.lisp (split-txt-data): Add documentation.
---

diff --git a/zone.lisp b/zone.lisp
index f68af5d..f50c6d7 100644
--- a/zone.lisp
+++ b/zone.lisp
@@ -869,6 +869,11 @@ (defmethod zone-record-rrdata ((type (eql :cname)) zr)
   5)
 
 (defun split-txt-data (data)
+  "Split the string DATA into pieces small enough to fit in a TXT record.
+
+   Return a list of strings L such that (a) (apply #'concatenate 'string L)
+   is equal to the original string DATA, and (b) (every (lambda (s) (<=
+   (length s) 255)) L) is true."
   (collecting ()
     (let ((i 0) (n (length data)))
       (loop