language.h

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/*-
 * 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
 * 
 */

#ifndef AMATH_LANGUAGE_BASE_H
#define AMATH_LANGUAGE_BASE_H

#include "lib/charval.h"
#include "main/symbol.h"
#include "loc/help.h"
#include "loc/text.h"
#include "loc/ident.h"
#include "loc/kword.h"

class Language : public CharValidator
{
public:
    Language();
    virtual ~Language();
    char* GetText(int id);
    char* GetHelpText(char* ident);
    char* GetHelpText(Symbol symbol);
    Symbol FindKeyword(const char* ident) const;
    virtual char GetFractionPoint() = 0;
    virtual bool CharIsAlNum(unsigned long character) = 0;
    virtual bool CharIsAlpha(unsigned long character) = 0;
    virtual bool CharIsDigit(unsigned long character) = 0;
    virtual bool CharIsPunct(unsigned long character) = 0;
    virtual bool CharIsSpace(unsigned long character) = 0;
    virtual bool CharIsCntrl(unsigned long character) = 0;
    virtual bool CharIsQuote(unsigned long character);
    virtual bool CharIsBlank(unsigned long character);
    virtual bool CharIsNewLine(unsigned long character);
    virtual bool CharIsOperator(unsigned long character);
    virtual bool StrIsEqualLoc(const char* s1, const char* s2) = 0;
    virtual bool Validate(char c) = 0;
    void SetAnsiMode(bool value);

protected:
    virtual char* Translate(textdef* def) = 0;
    virtual char* Translate(helptextdef* def) = 0;
    virtual char* Translate(identhelpdef* def) = 0;

    keyworddef* keywordsloc;
    unsigned int keywordcount;
    unsigned int textcount;
    unsigned int identcount;
    unsigned int helpcount;
    unsigned int aliascount;

private:
    char* FindAlias(const char* ident) const;
    char* UntagText(const char* text);
    char* lastText;
    bool ansiMode;
};

#endif