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/*
* Copyright (C) 2002-2010 InspIRCd Development Team
* Copyright (C) 2008-2010 Anope Team <team@anope.org>
*
* Please read COPYING and README for further details.
*
* These classes have been copied from InspIRCd and modified
* for use in Anope.
*/
#include "services.h"
#include "hashcomp.h"
/******************************************************
*
* This is the implementation of our special irc::string
* class which is a case-insensitive equivalent to
* std::string which is not only case-insensitive but
* can also do scandanavian comparisons, e.g. { = [, etc.
*
* This class depends on the const array 'national_case_insensitive_map'.
*
******************************************************/
bool irc::irc_char_traits::eq(char c1st, char c2nd)
{
return rfc_case_insensitive_map[static_cast<unsigned char>(c1st)] == rfc_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
bool irc::irc_char_traits::ne(char c1st, char c2nd)
{
return rfc_case_insensitive_map[static_cast<unsigned char>(c1st)] != rfc_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
bool irc::irc_char_traits::lt(char c1st, char c2nd)
{
return rfc_case_insensitive_map[static_cast<unsigned char>(c1st)] < rfc_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
int irc::irc_char_traits::compare(const char *str1, const char *str2, size_t n)
{
for (unsigned i = 0; i < n; ++i)
{
if (rfc_case_insensitive_map[static_cast<unsigned char>(*str1)] > rfc_case_insensitive_map[static_cast<unsigned char>(*str2)])
return 1;
if (rfc_case_insensitive_map[static_cast<unsigned char>(*str1)] < rfc_case_insensitive_map[static_cast<unsigned char>(*str2)])
return -1;
if (!*str1 || !*str2)
return 0;
++str1;
++str2;
}
return 0;
}
const char *irc::irc_char_traits::find(const char *s1, int n, char c)
{
while (n-- > 0 && rfc_case_insensitive_map[static_cast<unsigned char>(*s1)] != rfc_case_insensitive_map[static_cast<unsigned char>(c)])
++s1;
return n >= 0 ? s1 : NULL;
}
bool ci::ci_char_traits::eq(char c1st, char c2nd)
{
return ascii_case_insensitive_map[static_cast<unsigned char>(c1st)] == ascii_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
bool ci::ci_char_traits::ne(char c1st, char c2nd)
{
return ascii_case_insensitive_map[static_cast<unsigned char>(c1st)] != ascii_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
bool ci::ci_char_traits::lt(char c1st, char c2nd)
{
return ascii_case_insensitive_map[static_cast<unsigned char>(c1st)] < ascii_case_insensitive_map[static_cast<unsigned char>(c2nd)];
}
int ci::ci_char_traits::compare(const char *str1, const char *str2, size_t n)
{
for (unsigned i = 0; i < n; ++i)
{
if (ascii_case_insensitive_map[static_cast<unsigned char>(*str1)] > ascii_case_insensitive_map[static_cast<unsigned char>(*str2)])
return 1;
if (ascii_case_insensitive_map[static_cast<unsigned char>(*str1)] < ascii_case_insensitive_map[static_cast<unsigned char>(*str2)])
return -1;
if (!*str1 || !*str2)
return 0;
++str1;
++str2;
}
return 0;
}
const char *ci::ci_char_traits::find(const char *s1, int n, char c)
{
while (n-- > 0 && ascii_case_insensitive_map[static_cast<unsigned char>(*s1)] != ascii_case_insensitive_map[static_cast<unsigned char>(c)])
++s1;
return n >= 0 ? s1 : NULL;
}
sepstream::sepstream(const std::string &source, char seperator) : tokens(source), sep(seperator)
{
last_starting_position = n = tokens.begin();
}
sepstream::sepstream(const ci::string &source, char seperator) : tokens(source.c_str()), sep(seperator)
{
last_starting_position = n = tokens.begin();
}
sepstream::sepstream(const char *source, char seperator) : tokens(source), sep(seperator)
{
last_starting_position = n = tokens.begin();
}
bool sepstream::GetToken(std::string &token)
{
std::string::iterator lsp = last_starting_position;
while (n != tokens.end())
{
if (*n == sep || n + 1 == tokens.end())
{
last_starting_position = n + 1;
token = std::string(lsp, n + 1 == tokens.end() ? n + 1 : n);
while (token.length() && token.find_last_of(sep) == token.length() - 1)
token.erase(token.end() - 1);
++n;
return true;
}
++n;
}
token = "";
return false;
}
bool sepstream::GetToken(ci::string &token)
{
std::string tmp_token;
bool result = GetToken(tmp_token);
token = tmp_token.c_str();
return result;
}
const std::string sepstream::GetRemaining()
{
return std::string(n, tokens.end());
}
bool sepstream::StreamEnd()
{
return n == tokens.end();
}
/** Return a hash value for a string
* @param s The string
* @return The hash value
*/
size_t hash_compare_std_string::operator()(const std::string &s) const
{
register size_t t = 0;
for (std::string::const_iterator it = s.begin(), it_end = s.end(); it != it_end; ++it)
t = 5 * t + static_cast<const unsigned char>(*it);
return t;
}
/** Return a hash value for a string using case insensitivity
* @param s The string
* @return The hash value
*/
size_t hash_compare_ci_string::operator()(const ci::string &s) const
{
register size_t t = 0;
for (ci::string::const_iterator it = s.begin(), it_end = s.end(); it != it_end; ++it)
t = 5 * t + ascii_case_insensitive_map[static_cast<const unsigned char>(*it)];
return t;
}
/** Return a hash value for a string using RFC1459 case sensitivity rules
* @param s The string
* @return The hash value
*/
size_t hash_compare_irc_string::operator()(const irc::string &s) const
{
register size_t t = 0;
for (irc::string::const_iterator it = s.begin(), it_end = s.end(); it != it_end; ++it)
t = 5 * t + rfc_case_insensitive_map[static_cast<const unsigned char>(*it)];
return t;
}
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