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+/*
+ * Copyright (c) 2001-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STR_HH__
+#define __STR_HH__
+
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include <ctype.h>
+
+template<class> class Hash;
+template<>
+class Hash<std::string> {
+public:
+ unsigned operator()(const std::string &s) {
+ std::string::const_iterator i = s.begin();
+ std::string::const_iterator end = s.end();
+ unsigned hash = 5381;
+
+ while (i < end)
+ hash = ((hash << 5) + hash) + *i++;
+
+ return hash;
+ }
+};
+
+inline void
+eat_lead_white(std::string &s)
+{
+ std::string::size_type off = s.find_first_not_of(' ');
+ if (off != std::string::npos) {
+ std::string::iterator begin = s.begin();
+ s.erase(begin, begin + off);
+ }
+}
+
+inline void
+eat_end_white(std::string &s)
+{
+ std::string::size_type off = s.find_last_not_of(' ');
+ if (off != std::string::npos)
+ s.erase(s.begin() + off + 1, s.end());
+}
+
+inline void
+eat_white(std::string &s)
+{
+ eat_lead_white(s);
+ eat_end_white(s);
+}
+
+inline std::string
+to_lower(const std::string &s)
+{
+ std::string lower;
+ int len = s.size();
+
+ lower.reserve(len);
+
+ for (int i = 0; i < len; ++i)
+ lower.push_back(tolower(s[i]));
+
+ return lower;
+}
+
+// Split the string s into lhs and rhs on the first occurence of the
+// character c.
+bool
+split_first(const std::string &s, std::string &lhs, std::string &rhs, char c);
+
+// Split the string s into lhs and rhs on the last occurence of the
+// character c.
+bool
+split_last(const std::string &s, std::string &lhs, std::string &rhs, char c);
+
+// Tokenize the string <s> splitting on the character <token>, and
+// place the result in the string vector <vector>. If <ign> is true,
+// then empty result strings (due to trailing tokens, or consecutive
+// tokens) are skipped.
+void
+tokenize(std::vector<std::string> &vector, const std::string &s,
+ char token, bool ign = true);
+
+template <class T> bool
+to_number(const std::string &value, T &retval);
+
+template <class T>
+inline std::string
+to_string(const T &value)
+{
+ std::stringstream str;
+ str << value;
+ return str.str();
+}
+
+// Put quotes around string arg if it contains spaces.
+inline std::string
+quote(const std::string &s)
+{
+ std::string ret;
+ bool quote = s.find(' ') != std::string::npos;
+
+ if (quote)
+ ret = '"';
+
+ ret += s;
+
+ if (quote)
+ ret += '"';
+
+ return ret;
+}
+
+#endif //__STR_HH__