// -*- C++ -*-
/**
 * \file tex2lyx.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author André Pönitz
 * \author Jean-Marc Lasgouttes
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef TEX2LYX_H
#define TEX2LYX_H

#include "texparser.h"
#include "lyxtextclass.h"

#include <iosfwd>
#include <string>
#include <vector>
#include <map>

class Context;

/// in preamble.C
LyXTextClass const parse_preamble(Parser & p, std::ostream & os, std::string const & forceclass);


/// in text.C
void parse_text(Parser & p, std::ostream & os, unsigned flags, bool outer,
		Context & context);

//std::string parse_text(Parser & p, unsigned flags, const bool outer,
//		       Context & context);

/// parses a subdocument, usually useful in insets (whence the name)
void parse_text_in_inset(Parser & p, std::ostream & os, unsigned flags,
			 bool outer, Context & context);


/// in math.C
void parse_math(Parser & p, std::ostream & os, unsigned flags, mode_type mode);


/// in table.C
void handle_tabular(Parser & p, std::ostream & os, Context & context);


/// in tex2lyx.C
std::string const trim(std::string const & a, char const * p = " \t\n\r");

void split(std::string const & s, std::vector<std::string> & result,
	char delim = ',');
std::string join(std::vector<std::string> const & input,
	char const * delim);

bool is_math_env(std::string const & name);
char const * const * is_known(std::string const &, char const * const *);

// Access to environment stack
extern std::vector<std::string> active_environments;
std::string active_environment();

enum ArgumentType {
	required,
	verbatim,
	optional
};

/// Known TeX commands with arguments that get parsed into ERT.
extern std::map<std::string, std::vector<ArgumentType> > known_commands;

/*! Reads tex input from \a is and writes lyx output to \a os.
 *  Uses some common settings for the preamble, so this should only
 *  be used more than once for included documents.
 *  Caution: Overwrites the existing preamble settings if the new document
 *  contains a preamble. */
void tex2lyx(std::istream &, std::ostream &);
/// \return true if the conversion was successful, else false.
bool tex2lyx(std::string const &, std::string const &);

#endif