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/** \file wcstringutil.cpp
Helper functions for working with wcstring
*/
#include "config.h"
#include "wcstringutil.h"
typedef wcstring::size_type size_type;
wcstring_range wcstring_tok(wcstring& str, const wcstring &needle, wcstring_range last)
{
size_type pos = last.second == wcstring::npos ? wcstring::npos : last.first;
if (pos != wcstring::npos && last.second != wcstring::npos) pos += last.second;
if (pos != wcstring::npos && pos != 0) ++pos;
if (pos == wcstring::npos || pos >= str.size())
{
return std::make_pair(wcstring::npos, wcstring::npos);
}
if (needle.empty())
{
return std::make_pair(pos, wcstring::npos);
}
pos = str.find_first_not_of(needle, pos);
if (pos == wcstring::npos) return std::make_pair(wcstring::npos, wcstring::npos);
size_type next_pos = str.find_first_of(needle, pos);
if (next_pos == wcstring::npos)
{
return std::make_pair(pos, wcstring::npos);
}
else
{
str[next_pos] = L'\0';
return std::make_pair(pos, next_pos - pos);
}
}
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