structure.sa
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-------------------------> GNU Sather - sourcefile <-------------------------
-- Copyright (C) 2000 by K Hopper, University of Waikato, New Zealand --
-- This file is part of the GNU Sather library. It is free software; you may --
-- redistribute and/or modify it under the terms of the GNU Library General --
-- Public License (LGPL) as published by the Free Software Foundation; --
-- either version 2 of the license, or (at your option) any later version. --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See Doc/LGPL for more details. --
-- The license text is also available from: Free Software Foundation, Inc., --
-- 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA --
--------------> Please email comments to <bug-sather@gnu.org> <--------------
abstract class $VAL_DESCR
abstract class $VAL_DESCR is
-- This abstract class is the root of all formatting descriptors.
-- Version 1.1 Feb 99. Copyright K Hopper, U of Waikato
-- Development History
-- -------------------
-- Date Who By Detail
-- ---- ------ ------
-- 6 Sep 98 kh Original for revised formatting mechanism.
-- 3 Feb 99 kh Removed all features.
end ; -- $VAL_DESCR
abstract class $FORM_DESCR{RPT}
abstract class $FORM_DESCR{RPT} is
-- This abstract class defines one or more mechanisms for formatting
-- an object together with a list of constant values used as concrete
-- syntactic elements as may be appropriate for the concept being considered.
-- Version 1.0 Sep 98. Copyright K Hopper, U of Waikato
-- Development History
-- -------------------
-- Date Who By Detail
-- ---- ------ ------
-- 16 Sep 98 kh Original for revised formatting mechanism.
default : $VAL_DESCR ;
fixed_comps : FLIST{RPT} ;
end ; -- $FORM_DESCR
abstract class $VALUE{ETP, STP, CTP < $CURSOR{ETP,STP}} < $STR
abstract class $VALUE{ETP, STP, CTP < $CURSOR{ETP,STP}} < $STR is
-- This abstract class models the concept of a 'value' as represented
-- internally within the program, together with a description of how the
-- value is to be converted into an external representation and vice versa!
-- Version 1.0 Sep 98. Copyright K Hopper, U of Waikato
-- Development History
-- -------------------
-- Date Who By Detail
-- ---- ------ ------
-- 17 Sep 98 kh Original for new representation mechanism
val : $FMT ;
-- This is an actual value to be recognised or rendered as desired.
form : $FORM_DESCR ;
-- This is the description of the way in which external representation
-- is mapped to/from the internal value.
retrieve(
cursor : CTP,
lib : LIBCHARS
) : $FMT ;
-- This routine returns the internal value which is represented in
-- the given cursor string, using the given repertoire and encoding.
retrieve(
cursor : CTP
) : $FMT ;
-- This routine returns the internal value which is represented in
-- the given cursor string, using the default repertoire and encoding.
end ; -- $VALUE
abstract class $IDEA{ETP, STP, CTP < $CURSOR{ETP,STP}} < $STR
abstract class $IDEA{ETP, STP, CTP < $CURSOR{ETP,STP}} < $STR is
-- This abstract class models the concept of an utterance consisting of
-- one or more values and (possible) concrete syntax and punctuation items.
-- Version 1.0 Aug 98. Copyright K Hopper, U of Waikato
-- Development History
-- -------------------
-- Date Who By Detail
-- ---- ------ ------
-- 19 Aug 98 kh Original after WD for ISO/IEC 15345!
retrieve(
cursor : CTP,
lib : LIBCHARS
) : FLIST{$VALUE{ETP,STP,CTP}} ;
-- This routine will retrieve one or more values embedded in the given
-- string using the given repertoire and encoding.
retrieve(
cursor : CTP
) : FLIST{$VALUE{ETP,STP,CTP}} ;
-- This routine will retrieve one or more values embedded in the given
-- string using the default repertoire and encoding.
end ; -- $IDEA