2024-10-10

core/sim/sim_3_01/algollike.h

@@ -0,0 +1,32 @@
+/*	This file is part of the software similarity tester SIM.
+	Written by Dick Grune, Vrije Universiteit, Amsterdam.
+	$Id: algollike.h,v 1.7 2013-04-28 16:30:40 dick Exp $
+*/
+
+/*	The class Algollike is a subclass of Language.  It implements
+	the routines
+	    void Init_Algol_Language()
+	    int May_Be_Start_Of_Algol_Run() and
+	    size_t Best_Algol_Run_Size()
+	for ALGOL-like languages, languages in which it is meaningful and
+	useful to isolate function bodies. These routines can be used in
+	Init_Language(), May_Be_Start_Of_Run(), and Best_Run_Size(), required
+	by language.h .
+
+	It requires the user to define four token sets, represented as
+	Token set[] and terminated by No_Token:
+	    Token Non_Finals[]		tokens that may not end a chunk
+	    Token Non_Initials[]	tokens that may not start a chunk
+	    Token Openers[]		openers of parentheses that must
+					balance in functions
+	    Token Closers[]		the corresponding closers,
+					in the same order
+	These must be passed to Init_Algol_Language(), in the above order.
+*/
+
+extern void Init_Algol_Language(
+    const Token Non_Finals[], const Token Non_Initials[],
+    const Token Openers[], const Token Closers[]
+); /* note the order of the arguments: Non_Finals ~ Openers, etc. */
+extern int May_Be_Start_Of_Algol_Run(Token ch);
+extern size_t Best_Algol_Run_Size(const Token *str, size_t size);