test_02.mal

一个内存数据库的源代码这是服务器端还有客户端

# Monet Mil to Mal compiler
# Copyright (c) 2001-2004, CWI. All rights reserved.

#Predefined code segment
#The compiler can not guarantee an accurate compilation,
#because MIL unlike MAL is a dynamically typed language.
#A few guidelines to maximize usefullness.
#- make the type of variables explicit, in particular 'nil'
#- upon advice of M2m to remap identifiers, change it in your program directly
#use the "mil_schema" for additional support routines
#	io.print("setoid(oid(20000000));");
	aa_a := calc.oid(20000000);
	ba_a := calc.setoid(aa_a);
#	io.print("var s:= bat.new(str,int);");
	s := bat.new(nil:str,nil:int);
#	io.print("insert(s,\"hello\",1);");
	ca_a := bat.insert(s,"hello",1);
#	io.print("print(find(s,\"hello\"));");
	da_a := algebra.find(s,"hello");
	ea_a := io.print(da_a);
#	io.print("insert(s,\"bello\",2);");
	fa_a := bat.insert(s,"bello",2);
#	io.print("insert(s,\"cello\",3);");
	ga_a := bat.insert(s,"cello",3);
#	io.print("insert(s,\"dello\",4);");
	ha_a := bat.insert(s,"dello",4);
#	io.print("insert(s,\"eello\",5);");
	ia_a := bat.insert(s,"eello",5);
#	io.print("insert(s,\"fello\",6);");
	ja_a := bat.insert(s,"fello",6);
#	io.print("insert(s,\"gello\",7);");
	ka_a := bat.insert(s,"gello",7);
#	io.print("insert(s,\"hello\",8);");
	la_a := bat.insert(s,"hello",8);
#	io.print("printf(\"#~BeginVariableOutput~#\\n\"); info(s).print(); printf(\"#~EndVariableOutput~#\\n\");");
	ma_a := io.printf("#~BeginVariableOutput~#\n");
	na_a := bat.info(s);
	oa_a := io.print(na_a);
	pa_a := io.printf("#~EndVariableOutput~#\n");
#	io.print("print(find(s,\"cello\"));");
	qa_a := algebra.find(s,"cello");
	ra_a := io.print(qa_a);
#	io.print("delete(s,\"cello\",3);");
	sa_a := bat.delete(s,"cello",3);
#	io.print("print(s);");
	ta_a := io.print(s);
#	io.print("var sn:= algebra.select(s,1,5);");
	sn := algebra.select(s,1,5);
#	io.print("print(sn);");
	ua_a := io.print(sn);
#	io.print("var s2:= semijoin(s.reverse(),sn.reverse());");
	va_a := bat.reverse(s);
	wa_a := bat.reverse(sn);
	s2 := algebra.semijoin(va_a,wa_a);
#	io.print("print(s2);");
	xa_a := io.print(s2);
#	io.print("var x:= algebra.join(s,s2);");
	x := algebra.join(s,s2);
#	io.print("print(x);");
	ya_a := io.print(x);
#	io.print("quit();");
	ab_a := clients.quit();