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/*
* Copyright (c) 2001-2004 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__
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