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150cf11651
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21849 a592a061-630c-0410-9148-cb99ea01b6c8
117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
// -*- C++ -*-
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/**
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* \file debug.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef LYXDEBUG_H
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#define LYXDEBUG_H
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#include "support/docstring.h"
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namespace lyx {
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/** Ideally this should have been a namespace, but since we try to be
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* compilable on older C++ compilators too, we use a struct instead.
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* This is all the different debug levels that we have.
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*/
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class Debug {
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public:
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///
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enum Type {
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///
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NONE = 0,
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///
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INFO = (1 << 0),
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///
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DEBUG = (1 << 31),
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///
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ANY = 0xffffffff
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};
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/** A function to convert symbolic string names on debug levels
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to their numerical value.
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*/
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static Type value(std::string const & val);
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/** Display the tags and descriptions of the current debug level
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of ds
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*/
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static void showLevel(std::ostream & o, Type level);
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/** show all the possible tags that can be used for debugging */
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static void showTags(std::ostream & o);
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};
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inline void operator|=(Debug::Type & d1, Debug::Type d2)
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{
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d1 = static_cast<Debug::Type>(d1 | d2);
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}
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class LyXErr
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{
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public:
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/// Disable the stream completely
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void disable();
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/// Enable the stream after a possible call of disable()
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void enable();
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/// Returns true if t is part of the current debug level.
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bool debugging(Debug::Type t = Debug::ANY) const;
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/// Ends output
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void endl();
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/// Sets stream
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void setStream(std::ostream & os) { stream_ = &os; }
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/// Sets stream
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std::ostream & stream() { return *stream_; }
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/// Sets the debug level to t.
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void level(Debug::Type t) { dt = t; }
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/// Returns the current debug level.
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Debug::Type level() const { return dt; }
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/// Returns stream
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operator std::ostream &() { return *stream_; }
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private:
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/// The current debug level
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Debug::Type dt;
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/// Is the stream enabled?
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bool enabled_;
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/// The real stream
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std::ostream * stream_;
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};
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namespace support { class FileName; }
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LyXErr & operator<<(LyXErr &, void const *);
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LyXErr & operator<<(LyXErr &, char const *);
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LyXErr & operator<<(LyXErr &, char);
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LyXErr & operator<<(LyXErr &, int);
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LyXErr & operator<<(LyXErr &, unsigned int);
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LyXErr & operator<<(LyXErr &, long);
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LyXErr & operator<<(LyXErr &, unsigned long);
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LyXErr & operator<<(LyXErr &, double);
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LyXErr & operator<<(LyXErr &, std::string const &);
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LyXErr & operator<<(LyXErr &, docstring const &);
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LyXErr & operator<<(LyXErr &, std::ostream &(*)(std::ostream &));
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LyXErr & operator<<(LyXErr &, std::ios_base &(*)(std::ios_base &));
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LyXErr & operator<<(LyXErr & l, support::FileName const & t);
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extern LyXErr lyxerr;
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} // namespace lyx
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#define LYXERR(type, msg) \
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do { if (!lyx::lyxerr.debugging(type)) {} \
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else lyx::lyxerr << msg << std::endl; } while (0)
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#endif
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