1 files changed, 122 insertions, 0 deletions
diff --git a/src/utility/stringUtils.cpp b/src/utility/stringUtils.cpp
new file mode 100644
index 00000000..937eb99d
--- /dev/null
+++ b/src/utility/stringUtils.cpp
@@ -0,0 +1,122 @@
+//
+// VMime library (http://vmime.sourceforge.net)
+// Copyright (C) 2002-2004 Vincent Richard <[email protected]>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#include "stringUtils.hpp"
+
+
+namespace vmime
+{
+
+
+const bool stringUtils::isStringEqualNoCase
+	(const string& s1, const char* s2, const string::size_type n)
+{
+	// 'n' is the number of characters to compare
+	// 's2' must be in lowercase letters only
+	if (s1.length() < n)
+		return (false);
+
+	bool equal = true;
+
+	for (string::size_type i = 0 ; equal && i < n ; ++i)
+		equal = (std::tolower(s1[i], std::locale()) == s2[i]);
+
+	return (equal);
+}
+
+
+const bool stringUtils::isStringEqualNoCase(const string& s1, const string& s2)
+{
+	if (s1.length() != s2.length())
+		return (false);
+
+	bool equal = true;
+	const string::const_iterator end = s1.end();
+
+	for (string::const_iterator i = s1.begin(), j = s2.begin(); i != end ; ++i, ++j)
+		equal = (std::tolower(*i, std::locale()) == std::tolower(*j, std::locale()));
+
+	return (equal);
+}
+
+
+const bool stringUtils::isStringEqualNoCase
+	(const string::const_iterator begin, const string::const_iterator end,
+	 const char* s, const string::size_type n)
+{
+	if ((string::size_type)(end - begin) < n)
+		return (false);
+
+	bool equal = true;
+	char* c = const_cast<char*>(s);
+	string::size_type r = n;
+
+	for (string::const_iterator i = begin ; equal && r && *c ; ++i, ++c, --r)
+		equal = (std::tolower(*i, std::locale()) == *c);
+
+	return (r == 0 && equal);
+}
+
+
+const string stringUtils::toLower(const string& str)
+{
+	string out(str);
+	const string::iterator end = out.end();
+
+	for (string::iterator i = out.begin() ; i != end ; ++i)
+		*i = std::tolower(*i, std::locale());
+
+	return (out);
+}
+
+
+const string stringUtils::trim(const string& str)
+{
+	string::const_iterator b = str.begin();
+	string::const_iterator e = str.end();
+
+	if (b != e)
+	{
+		for ( ; b != e && isspace(*b) ; ++b);
+		for ( ; e != b && isspace(*(e - 1)) ; --e);
+	}
+
+	return (string(b, e));
+}
+
+
+const string::size_type stringUtils::countASCIIchars
+	(const string::const_iterator begin, const string::const_iterator end)
+{
+	string::size_type count = 0;
+
+	for (string::const_iterator i = begin ; i != end ; ++i)
+	{
+		if (isascii(*i))
+		{
+			if (*i != '=' || *(i + 1) != '?') // To avoid bad behaviour...
+				++count;
+		}
+	}
+
+	return (count);
+}
+
+
+} // vmime