sink.h

/***************************************************************
 *
 * Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
 * University of Wisconsin-Madison, WI.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ***************************************************************/


#ifndef __CLASSAD_SINK_H__
#define __CLASSAD_SINK_H__

#include "classad/common.h"
#include "classad/exprTree.h"
#include <vector>
#include <utility>  // for pair template
#include <string>

BEGIN_NAMESPACE( classad )


class ClassAdUnParser
{
    public:
        ClassAdUnParser( );

        virtual ~ClassAdUnParser( );

        void setXMLUnparse(bool doXMLUnparse);

        // The default delimiter for strings is '\"'
        // This can be changed to '\'' to unparse quoted attributes, with this function
        void setDelimiter(char delim);

        void Unparse( std::string &buffer, const Value &val );

        void Unparse( std::string &buffer, const ExprTree *expr );

            //  for backcompatibility only - NAC
        void SetOldClassAd( bool );
        bool GetOldClassAd();

        virtual void UnparseAux( std::string &buffer,
                                 const Value&,Value::NumberFactor );
        virtual void UnparseAux( std::string &buffer, 
                                 const ExprTree *tree, 
                                 std::string &ref, bool absolute=false );
        virtual void UnparseAux( std::string &buffer, Operation::OpKind op, 
                    ExprTree *op1, ExprTree *op2, ExprTree *op3 );
        virtual void UnparseAux(std::string &buffer, std::string &fnName, 
                    std::vector<ExprTree*>& args);
        virtual void UnparseAux( std::string &buffer, 
                    std::vector< std::pair< std::string, ExprTree*> >& attrlist );
        virtual void UnparseAux( std::string &buffer, std::vector<ExprTree*>& );

        // to unparse attribute names (quoted & unquoted attributes)
        virtual void UnparseAux( std::string &buffer, std::string identifier);

        // table of string representation of operators
        static const char *opString[];

 protected:
        bool oldClassAd;
        bool xmlUnparse;
        char delimiter; // string delimiter - initialized to '\"' in the constructor
};


class PrettyPrint : public ClassAdUnParser
{
    public:
        PrettyPrint( );
        virtual ~PrettyPrint( );

        void SetClassAdIndentation( int=4 );
        int  GetClassAdIndentation( );

        void SetListIndentation( int=4 );
        int  GetListIndentation( );

        void SetWantStringQuotes( bool );
        bool GetWantStringQuotes( );

        void SetMinimalParentheses( bool );
        bool GetMinimalParentheses( );

        virtual void UnparseAux( std::string &buffer, Operation::OpKind op, 
                    ExprTree *op1, ExprTree *op2, ExprTree *op3 );
        virtual void UnparseAux( std::string &buffer,
                    std::vector< std::pair< std::string, ExprTree*> >& attrlist );
        virtual void UnparseAux( std::string &buffer, std::vector<ExprTree*>& );

    private:
        int  classadIndent;
        int  listIndent;
        bool wantStringQuotes;
        bool minimalParens;
        int  indentLevel;
};

END_NAMESPACE // classad

#endif//__CLASSAD_SINK_H__