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/*

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 *  matiec - a compiler for the programming languages defined in IEC 61131-3

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 *

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 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)

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 *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant

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 *

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 *  This program is free software: you can redistribute it and/or modify

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 *  it under the terms of the GNU General Public License as published by

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 *  the Free Software Foundation, either version 3 of the License, or

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 *  (at your option) any later version.

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 *

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 *  This program is distributed in the hope that it will be useful,

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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

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 *  You should have received a copy of the GNU General Public License

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 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.

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 *

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 *

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 * This code is made available on the understanding that it will not be

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 * used in safety-critical situations without a full and competent review.

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 */

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/*

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 * An IEC 61131-3 compiler.

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 *

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 * Based on the

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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)

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 *

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 */

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/*

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 * This file contains the code that stores the output generated

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 * by each specific version of the 4th stage.

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 */

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#include "../absyntax/absyntax.hh"

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class stage4out_c {

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  public:

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    std::string indent_level;

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    std::string indent_spaces;

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  public:

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    stage4out_c(std::string indent_level = "  ");

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    stage4out_c(const char *dir, const char *radix, const char *extension, std::string indent_level = "  ");

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    ~stage4out_c(void);

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    void flush(void);

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    void enable_output(void);

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    void disable_output(void);

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    void indent_right(void);

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    void indent_left(void);

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    void *print(const char *str);

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    void *print(std::string str);

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    void *print_integer(int integer);

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    void *print_long_integer(unsigned long l_integer, bool suffix=true);

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    void *print_long_long_integer(unsigned long long ll_integer, bool suffix=true);

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    void *printupper(const char *str);

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    void *printupper(std::string str);

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    void *printlocation(const char *str);

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    void *printlocation(std::string str);

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    void *printlocation_comasep(const char *str);

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  protected:

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    std::ostream *out;

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    std::fstream *m_file;

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    /* A flag to tell whether to really print to the file, or to ignore any request to print to the file */

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    /* This is used to implement the no_code_generation pragmas, that lets the user tell the compiler

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     * when to switch on and off the code generation, without stoping the lexical, syntatical, and

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     * semantic analysers from analysing the code.

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     */

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    bool allow_output;

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};

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int stage4(symbol_c *tree_root);