From 5dd1d354f86692e4c08cc78f3d9743557103449e Mon Sep 17 00:00:00 2001
From: Matthew I <matttpt@gmail.com>
Date: Sun, 2 Sep 2012 16:51:17 -0400
Subject: Enforce stricter world names using a blacklist

Blacklisted characters are: / \
---
 src/util/string.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'src/util')

diff --git a/src/util/string.h b/src/util/string.h
index 97b07f2ff..71b11de3d 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -242,6 +242,29 @@ inline bool string_allowed(const std::string &s, const std::string &allowed_char
 	return true;
 }
 
+/*
+	Checks if a string contains no blacklisted characters (opposite
+	function of string_allowed())
+*/
+inline bool string_allowed_blacklist(const std::string & s, const std::string & blacklisted_chars)
+{
+	for(unsigned int i = 0; i < s.length(); i++)
+	{
+		bool invalid = false;
+		for(unsigned int j = 0; j < blacklisted_chars.length(); j++)
+		{
+			if(s[i] == blacklisted_chars[j])
+			{
+				invalid = true;
+				break;
+			}
+		}
+		if(invalid)
+			return false;
+	}
+	return true;
+}
+
 /*
 	Forcefully wraps string into rows using \n
 	(no word wrap, used for showing paths in gui)
-- 
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