/*
 * $Id$
 */

/*  $DOC$
 *  $FUNCNAME$
 *      Macro compiler
 *  $CATEGORY$
 *      Document
 *  $ONELINER$
 *      Macro compiler
 *  $DESCRIPTION$
 *
 *      <b>Invoking the macro compiler:  </b> </par>
 *      ==============================   </par>
 *
 *         &variable                     </par>
 *      or                               </par>
 *         &( expression )               </par>
 *      or                               </par>
 *         &variable.text                </par>
 *
 *  $END$
 */

/*  $DOC$
 *  $FUNCNAME$
 *      HB_SETMACRO()
 *  $CATEGORY$
 *      Macro compiler
 *  $ONELINER$
 *      Enable/disable the macro compiler runtime features.
 *  $SYNTAX$
 *      HB_SETMACRO( <nOption>, [<lOnOff>] ) --> <lOldSetting>
 *  $ARGUMENTS$
 *      <nOption> One of the HB_SM_* constants defined in set.ch.
 *
 *      <lOnOff> .T. to enable or .F. to disable a feature
 *  $RETURNS$
 *      HB_SETMACRO() return the old state of requested feature.
 *  $DESCRIPTION$
 *      This function enables or disables some features of the macro
 *      compiler. The Harbour is extending the macro features compared
 *      to an original set available in Clipper. Enabling/disabling
 *      some of them allows to keep strict Clipper compatibility.
 *
 *      Available features are:
 *      <b>HB_SM_HARBOUR</b> - enables harbour extensions:
 *            operators: ++, --, +=, -=, *=, /=, ^=
 *            objects: assigments to an instance variable
 *      <b>HB_SM_XBASE</b> - enables other xbase dialects extensions:
 *            expanding of expresions lists
 *      <b>HB_SM_SHORTCUTS</b> - enables optimized evaluation of
 *            logical operators (.and., .or.)
 *      <b>HB_SM_PREPROC</b> - enables preprocessing of commands
 *            This is meaningfull if Harbour is compiled with
 *            HB_MACRO_STATEMENTS flag
 *
 *  $EXAMPLES$
 *      INIT PROCEDURE IWANTCLIPPER()
 *        HB_SETMACRO( HB_SM_HARBOUR, .F. )
 *        HB_SETMACRO( HB_SM_XBASE, .F. )
 *      RETURN
 *
 *  </fixed>
 *  $STATUS$
 *      R
 *  $COMPLIANCE$
 *      This function is Harbour extension.
 *  $PLATFORMS$
 *      All
 *  $FILES$
 *      Header file is set.ch
 *      Library is macro
 *  $SEEALSO$
 *      Macro compiler
 *  $END$
 */