From a3fb932831ca09b2a931616f1701ea39429356c2 Mon Sep 17 00:00:00 2001
From: brain
Date: Fri, 23 Jan 2009 13:20:57 +0000
Subject: Fix m_nationalchars using a copy and paste of my unsafe copy and
 paste algorithm, that will lock up if the string to replace contains the
 string to search for. Finally make this function a core utility function and
 remove the copies from 3 modules m_alias m_nationalchars and m_sqlauth

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@10990 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/hashcomp.cpp | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

(limited to 'src/hashcomp.cpp')

diff --git a/src/hashcomp.cpp b/src/hashcomp.cpp
index 52a6210f9..0d036d528 100644
--- a/src/hashcomp.cpp
+++ b/src/hashcomp.cpp
@@ -6,7 +6,7 @@
  * See: http://www.inspircd.org/wiki/index.php/Credits
  *
  * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *	    the file COPYING for details.
  *
  * ---------------------------------------------------
  */
@@ -501,3 +501,26 @@ long irc::portparser::GetToken()
 	}
 }
 
+const std::string& SearchAndReplace(std::string& text, const std::string& pattern, const std::string& replace)
+{
+	std::string replacement;
+	if ((!pattern.empty()) && (!text.empty()))
+	{
+		for (std::string::size_type n = 0; n != text.length(); ++n)
+		{
+			if (text.length() >= pattern.length() && text.substr(n, pattern.length()) == pattern)
+			{
+				/* Found the pattern in the text, replace it, and advance */
+				replacement.append(replace);
+				n = n + pattern.length() - 1;
+			}
+			else
+			{
+				replacement += text[n];
+			}
+		}
+	}
+	text = replacement;
+	return text;
+}
+
-- 
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