From fb4c36d7cb6042fbec466f9bfb1cf3d0caeb6854 Mon Sep 17 00:00:00 2001
From: uckelman <uckelman@nomic.net>
Date: Thu, 25 Nov 2010 11:15:16 +0000
Subject: Added has_rfc822_specials and rfc822_quote for handling names in
 email addresses.

git-svn-id: https://vassalengine.svn.sourceforge.net/svnroot/vassalengine/site-src/trunk@7492 67b53d14-2c14-4ace-a08f-0dab2b34000c
---
 src/Util.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src')

diff --git a/src/Util.php b/src/Util.php
index 0f1499a..47a26a4 100644
--- a/src/Util.php
+++ b/src/Util.php
@@ -24,6 +24,17 @@ function throw_if_null($arg) {
   if ($arg === null) throw new Exception('argument is null');
 }
 
+function has_rfc822_specials($str) {
+  // check for RFC822 specials (see section 3.3)
+  return strpbrk($str, '()<>@,;:\".[]') !== false;
+}
+
+function rfc822_quote($str) {
+  // turn \ and " into quoted-pairs, then quote the whole string
+  return '"' . str_replace(array("\\",   "\"",),
+                           array("\\\\", "\\\""), $str) . '"';
+}
+
 function is_ascii($str) {
   return !preg_match('/[^[:ascii:]]/', $str);
 }
-- 
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