git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1561 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
		
			
				
	
	
		
			108 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Prolog
		
	
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Prolog
		
	
	
	
	
	
| %====================================================================================
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| %
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| % YPP: Yap PreProcessing
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| %
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| % Author: Nuno Fonseca (nunofonseca@acm.org)
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| % Date: 2005-05-14
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| % $Id: ypp.yap,v 1.4 2006-03-07 17:30:47 tiagosoares Exp $
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| %
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| %====================================================================================
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| 
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| %====================================================================================
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| % Module declarations
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| %====================================================================================
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| 
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| :-module(ypp,[
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| 	      ypp_state/1,	% ypp_state(on|off)
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| 	      ypp_define/2,     % persistent defines  ypp_define(+NAME,VALUE)
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| 	      ypp_undefine/1,   % persistent defines  ypp_undefine(+NAME)
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| 	      ypp_extcmd/1,	% ypp_extcmd(?command)
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| 	      ypp_consult/1,    % similiar to standard consult but with preprocessing
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| 	      ypp_reconsult/1
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|     ]
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|     ).
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| %====================================================================================
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| % Public Predicates
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| %====================================================================================
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| 
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| ypp_state(State):-
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| 	ground(State),!,
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| 	set_state(State).
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| 
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| ypp_state(State):-
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| 	get_state(State),
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| 	!.
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| 
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| ypp_define(Name,Value):-
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| 	ground(Name),ground(Value),
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| 	store_define(Name,Value).
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| 
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| ypp_undefine(Name):-
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| 	ground(Name),
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| 	del_define(Name).
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| 
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| ypp_extcmd(Cmd):-
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| 	ground(Cmd),!,
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| 	eraseall('____ypp_extcmd'),
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| 	recorda('____ypp_extcmd',Cmd,_).
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| ypp_extcmd(Cmd):-
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| 	\+ ground(Cmd),
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| 	recorded('____ypp_extcmd',Cmd,_).
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| 
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| ypp_consult(File):-
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| 	(get_state(on)->ypp_file(File,NFile);NFile=File),
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| 	consult(NFile).
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| 
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| ypp_reconsult(File):-
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| 	(get_state(on)->ypp_file(File,NFile);NFile=File),
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| 	reconsult(NFile).
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| %====================================================================================
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| % Private Predicates
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| %====================================================================================
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| 
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| set_state(on):-set_value('____ypp_state',1).
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| set_state(off):-set_value('____ypp_state',0).
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| 
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| get_state(State):-
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| 	get_value('____ypp_state',Val),
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| 	(Val==0->State=off;State=on).
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| 
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| 
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| store_define(Name,Value):-
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| 	(recorded('___ypp',def(Name,_),Ref)->erase(Ref);true),
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| 	recordz('___ypp',def(Name,Value),_).
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| 
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| del_define(Name):-
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| 	(recorded('___ypp',def(Name,_),Ref)->erase(Ref);true),
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| 	!.
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| 
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| %defines2string(-DefineString)
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| defines2string(S):-
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| 	findall(d(Name,Val),recorded('___ypp',def(Name,Val),_),AllDefs),
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| 	mergedefs(AllDefs,'-D',S),
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| 	!.
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| 
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| mergedefs([],_,'').
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| mergedefs([d(Name,Val)|RDefs],Pref,S):-
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| 	mergedefs(RDefs,Pref,S1),
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| 	atom_concat([Pref,Name,'=',Val,' ',S1],S).
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| 
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| 
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| ypp_file(File,PPFile):-
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| 	% ppfile
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| 	atom_concat([File,'.ypp'],PPFile),
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| 	% Cmdline
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| 	defines2string(Defs),ypp_extcmd(Cmd),
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| 	atom_concat([Cmd,' ',PPFile,' ',Defs,' ',File],Cmdline),
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| 	write(Cmdline),nl,
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| %	current_module(M1,M2),
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| %	write(M1:M2),nl,
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| 	system(Cmdline),
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| 	!.
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| 
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| % initialization
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| :-set_state(on),
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| 	ypp_extcmd('cpp -P -E -w -o ').
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| %	ypp_extcmd('gpp -o').
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| 
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