OptionsInstruction.cpp

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/*----------------------------------------------------------------------------*/
/*                                                                            */
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/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved.    */
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/*----------------------------------------------------------------------------*/
/******************************************************************************/
/* REXX Translator                                                            */
/*                                                                            */
/* Primitive Options Parse Class                                              */
/*                                                                            */
/******************************************************************************/
#include <stdlib.h>
#include "RexxCore.h"
#include "StringClass.hpp"
#include "RexxActivation.hpp"
#include "OptionsInstruction.hpp"
 
RexxInstructionOptions::RexxInstructionOptions(
    RexxObject *_expression)            /* associated expression object      */
/******************************************************************************/
/* Initialize a REXX OPTION instruction                                       */
/******************************************************************************/
{
  OrefSet(this, this->expression, _expression);
}
 
void RexxInstructionOptions::execute(
    RexxActivation      *context,      /* current activation context        */
    RexxExpressionStack *stack)        /* evaluation stack                  */
/******************************************************************************/
/* Function:  Execute a REXX OPTIONS instruction                              */
/******************************************************************************/
{
    RexxObject *value;                   /* output value                      */
    RexxString *stringVal;               /* string version of the value       */
    size_t i;                            /* loop counter                      */
    RexxString *word;                    /* current word                      */
 
    context->traceInstruction(this);     /* trace if necessary                */
                                         /* get the expression value          */
    value = this->expression->evaluate(context, stack);
    stringVal = REQUEST_STRING(value);   /* get the string version            */
    ProtectedObject p(stringVal);
    context->traceResult(value);         /* trace the output value            */
    for (i = 1; ;i++)                  /* now process each word             */
    {
        /* get the next word                 */
        word = (RexxString *)(stringVal->word(new_integer(i)));
        if (word->getBLength() == 0)        /* get the length of the word        */
        {
            break;                           /* if length of word = 0 then stop   */
        }
 
        if (word->strCaselessCompare(CHAR_COMMANDS))
        {
            context->enableCommands(true);
        }
 
        else if (word->strCaselessCompare(CHAR_NOCOMMANDS))
        {
            context->enableCommands(false);
        }
 
        else if (word->strCaselessCompare(CHAR_MACROSPACE))
        {
            context->enableMacrospace(true);
        }
 
        else if (word->strCaselessCompare(CHAR_NOMACROSPACE))
        {
            context->enableMacrospace(false);
        }
 
#ifdef _DEBUG
        else if (word->strCaselessCompare("DUMPMEMORY"))
        {
            memoryObject.dumpEnable = true;
            memoryObject.dump();
        }
#endif
    }
    context->pauseInstruction();         /* do debug pause if necessary       */
}