lyx_mirror/src/support/strfwd.h
Richard Heck ecef54500d Introduce max_length parameter for plaintext() output routines,
so we can write a limited amount when using this for TOC and
tooltip output.

This should solve the problem with slowness that Kornel noticed,
which was caused by our trying to write an entire plaintext
bibliography every time we updated the TOC. We did that because
he had a bibliography inside a branch, and we use plaintext for
creating the tooltip that goes with the branch list.

Other related bugs were fixed along the way. E.g., it turns out
that, if someone had an InsetInclude inside a branch, then we would
have been writing a *plaintext file* for that inset every time we
updated the TOC. I wonder if some of the other reports of slowness
we have received might be due to this kind of issue?
2013-03-08 15:12:58 -05:00

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C++

// -*- C++ -*-
// Heavily inspired by /usr/include/c++/4.1/bits
//
// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library 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, or (at your option)
// any later version.
#ifndef STRFWD_H
#define STRFWD_H
#ifdef USE_WCHAR_T
// Prefer this if possible because GNU libstdc++ has usable
// std::ctype<wchar_t> locale facets but not
// std::ctype<boost::uint32_t>. gcc older than 3.4 is also missing
// usable std::char_traits<boost::uint32_t>.
namespace lyx { typedef wchar_t char_type; }
#else
#include <boost/cstdint.hpp>
namespace lyx { typedef boost::uint32_t char_type; }
#endif
namespace std {
template<typename Alloc> class allocator;
template<typename Char> struct char_traits;
template<> struct char_traits<char>;
#ifdef USE_WCHAR_T
template<> struct char_traits<wchar_t>;
#endif
template<typename Char, typename Traits, typename Alloc> class basic_string;
typedef basic_string<char, char_traits<char>, allocator<char> > string;
template<class Char, class Traits> class basic_istream;
template<class Char, class Traits> class basic_ostream;
template<class Char, class Traits, class Allocator> class basic_ostringstream;
typedef basic_istream<char, char_traits<char> > istream;
typedef basic_ostream<char, char_traits<char> > ostream;
typedef basic_ostringstream<char, char_traits<char>, allocator<char> > ostringstream;
} // namepace std
namespace lyx {
/// String type for storing the main text in UCS4 encoding
typedef std::basic_string<char_type, std::char_traits<char_type>,
std::allocator<char_type> > docstring;
/// Base class for UCS4 input streams
typedef std::basic_istream<char_type, std::char_traits<char_type> > idocstream;
/// Base class for UCS4 output streams
typedef std::basic_ostream<char_type, std::char_traits<char_type> > odocstream;
/// UCS4 output stringstream
typedef std::basic_ostringstream<char_type, std::char_traits<char_type>, std::allocator<char_type> > odocstringstream;
#if ! defined(USE_WCHAR_T)
extern odocstream & operator<<(odocstream &, char);
#endif
// defined in lstrings.cpp
docstring const & empty_docstring();
std::string const & empty_string();
// defined in docstring.cpp
bool operator==(docstring const &, char const *);
} // namespace lyx
#endif