amath/src/main/statement/help.cpp

122 lines
3.4 KiB
C++

/*-
* Copyright (c) 2014-2018 Carsten Sonne Larsen <cs@innolan.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Project homepage:
* https://amath.innolan.net
*
*/
#include "help.h"
#include "amath.h"
#include "amathc.h"
#include "loc/help.h"
#include "loc/text.h"
#include "system/program.h"
HelpStatement::HelpStatement() :
StatementNode()
{
argument = static_cast<Symbol>(0);
ident = nullptr;
}
HelpStatement::HelpStatement(Symbol argument) :
StatementNode(), argument(argument)
{
ident = nullptr;
}
HelpStatement::HelpStatement(const char* ident)
{
argument = symident;
AllocAndCopy(&this->ident, ident);
}
HelpStatement::~HelpStatement()
{
if (ident != nullptr)
{
delete [] ident;
}
}
char* HelpStatement::Execute()
{
if (argument == symstatement)
{
return StatementHelp();
}
else if (argument == symident)
{
char* text = Program->Language->GetHelpText(ident);
output->ClearAndCopy(text);
return output->GetString();
}
char* text = Program->Language->GetHelpText(argument);
output->ClearAndCopy(text);
return output->GetString();
}
#define APPENDHELP(x) \
text = x; \
output->EnsureGrowth(StrLen(text)); \
output->Append(text);
char* HelpStatement::StatementHelp() const
{
char* text;
output->ClearBuffer();
APPENDHELP(STATEMENTLINE)
APPENDHELP(STATEMENTABOUT)
#if defined(AMIGA) || defined(TERMIOS) || defined(WINDOWS)
APPENDHELP(STATEMENTCLEAR)
#endif
APPENDHELP(STATEMENTDEF)
APPENDHELP(STATEMENTDELETE)
APPENDHELP(STATEMENTDIGITS)
APPENDHELP(STATEMENTEVAL)
APPENDHELP(STATEMENTEXECUTE)
APPENDHELP(STATEMENTFUNCS)
APPENDHELP(STATEMENTINPUT)
APPENDHELP(STATEMENTHELP)
APPENDHELP(STATEMENTOUTPUT)
#if defined(UNIX) || defined(HAIKU) || defined(AMIGA)
APPENDHELP(STATEMENTLIST)
#endif
APPENDHELP(STATEMENTSHOW)
APPENDHELP(STATEMENTLOAD)
APPENDHELP(STATEMENTSAVE)
APPENDHELP(STATEMENTVARS)
APPENDHELP(STATEMENTVERSION)
APPENDHELP(STATEMENTLICENSE)
APPENDHELP(STATEMENTMEMORY)
APPENDHELP(STATEMENTEXIT)
APPENDHELP(STATEMENTLINE)
APPENDHELP(STATEMENTFOOTER)
return output->GetString();
}