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gt_isdat.prg
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1993-10-14
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/*
File......: GT_IsData.prg
Author....: Martin Bryant
BBS.......: The Dark Knight Returns
Net/Node..: 050/069
User Name.: Martin Bryant
Date......: 12/02/93
Revision..: 1.0
This is an original work by Martin Bryant and is placed
in the public domain.
Modification history:
---------------------
Rev 1.0 12/02/93
PD Revision.
*/
/* $DOC$
* $FUNCNAME$
* GT_ISDATA()
* $CATEGORY$
* General
* $ONELINER$
* IsData validates a number as being ASCII Text.
* $SYNTAX$
* GT_IsData(<nKey>) -> lData
* $ARGUMENTS$
* <nKey> is the ASCII value to test.
* $RETURNS$
* lData
* $DESCRIPTION$
* IsData validates a number as being ASCII Text.
* $EXAMPLES$
* // Trim out control chars
* IF .NOT. GT_IsData(nKey)
* ? 'Error'
* ENDIF
* $SEEALSO$
*
* $INCLUDE$
*
* $END$
*/
#include "GT_LIB.ch"
FUNCTION GT_IsData(nData)
/*
End of GT_IsData()
*/
RETURN(nData >= 32 .AND. nData < 127 .AND. Chr(nData) != ";")