From a04a74fec4b5e13e8464f1f3c9071fa0b56a13eb Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 12 Sep 2012 03:59:10 -0400
Subject: [PATCH] Improvements in building criteria string for IMAP SEARCH
---
program/include/rcube_shared.inc | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/program/include/rcube_shared.inc b/program/include/rcube_shared.inc
index c15305c..4577c6d 100644
--- a/program/include/rcube_shared.inc
+++ b/program/include/rcube_shared.inc
@@ -255,6 +255,21 @@
/**
+ * Check if a string contains only ascii characters
+ *
+ * @param string $str String to check
+ * @param bool $control_chars Includes control characters
+ *
+ * @return bool
+ */
+function is_ascii($str, $control_chars = true)
+{
+ $regexp = $control_chars ? '/[^\x00-\x7F]/' : '/[^\x20-\x7E]/';
+ return preg_match($regexp, $str) ? false : true;
+}
+
+
+/**
* Remove single and double quotes from a given string
*
* @param string Input value
--
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