// os.h copyright "Ruurd A. Reitsma" <R.A.Reitsma@wbmt.tudelft.nl>

#ifndef OS_H
#define OS_H

#include "LString.h"

/// wrap OS specific stuff
namespace os {
	//
	enum shell_type {
		UNIX,	// Do we have to distinguish sh and csh?
		CMD_EXE
	};

	// do some work just once
	void init(int * argc, char ** argv[]);
	// returns path of LyX binary
	string binpath();
	// returns name of LyX binary
	string binname();
	// system_tempdir actually doesn't belong here
	// I put it here only to avoid a global variable.
	void setTmpDir(string const & p);
	// 
	string getTmpDir();
	//
	string current_root();
	//
	shell_type shell();
	// DBCS aware!
	string::size_type common_path(string const & p1, string const & p2);
	// no-op on UNIX, '\\'->'/' on OS/2 and Win32, ':'->'/' on MacOS, etc.
	string slashify_path(string const & p);
	// converts a host OS path to unix style
	string external_path(string const & p);
	// converts a unix path to host OS style
	string internal_path(string const & p);
	// is path absolute?
	bool is_absolute_path(string const & p);
	// returns a string suitable to be passed to popen when
	// same for popen().
	char const * popen_read_mode();
	//
	void warn(string const & mesg);
}

#endif