[Redbutton-devel] SF.net SVN: redbutton: [328] redbutton-author/trunk

[<ski...@us...>]

Revision: 328
          http://redbutton.svn.sourceforge.net/redbutton/?rev=328&view=rev
Author:   skilvington
Date:     2007-08-22 06:19:38 -0700 (Wed, 22 Aug 2007)

Log Message:
-----------
import the yacc grammar compiler

Added Paths:
-----------
    redbutton-author/trunk/Makefile
    redbutton-author/trunk/ccc.l
    redbutton-author/trunk/ccc.y

Added: redbutton-author/trunk/Makefile
===================================================================
--- redbutton-author/trunk/Makefile	                        (rev 0)
+++ redbutton-author/trunk/Makefile	2007-08-22 13:19:38 UTC (rev 328)
@@ -0,0 +1,35 @@
+CC=gcc
+CFLAGS=-Wall -O2
+
+LEX=lex
+YACC=yacc
+
+DESTDIR=/usr/local
+
+OBJS=	mhegc.o	\
+	token.o	\
+	utils.o
+
+TARDIR=`basename ${PWD}`
+
+ccc:	ccc.y ccc.l
+	${LEX} -i ccc.l
+	${YACC} -d ccc.y
+	${CC} ${CFLAGS} -o ccc lex.yy.c y.tab.c
+
+mhegc:	${OBJS}
+	${CC} ${CFLAGS} -o mhegc ${OBJS} ${LIBS}
+
+.c.o:
+	${CC} ${CFLAGS} -c $<
+
+install:	mhegc
+	install -m 755 mhegc ${DESTDIR}/bin
+
+clean:
+	rm -f mhegc *.o core
+
+tar:
+	make clean
+	(cd ..; tar zcvf ${TARDIR}.tar.gz --exclude .svn ${TARDIR})
+

Added: redbutton-author/trunk/ccc.l
===================================================================
--- redbutton-author/trunk/ccc.l	                        (rev 0)
+++ redbutton-author/trunk/ccc.l	2007-08-22 13:19:38 UTC (rev 328)
@@ -0,0 +1,18 @@
+%{
+#include <string.h>
+#include "y.tab.h"
+%}
+%%
+\/\/[^\n\r\f]*		return COMMENT;
+\"[^"]*\"		yylval = strdup(yytext); return LITERAL;
+[a-z][a-z0-9]*		yylval = strdup(yytext); return IDENTIFIER;
+"::="			return DEFINEDAS;
+"|"			return ALTERNATIVE;
+"["			return LBRACKET;
+"]"			return RBRACKET;
+"+"			return ONEORMORE;
+"."			return ENDCLAUSE;
+[\n\r\f]		/* ignore end of line */
+[ \t]+			/* ignore whitespace */
+.			return INVALID;
+%%

Added: redbutton-author/trunk/ccc.y
===================================================================
--- redbutton-author/trunk/ccc.y	                        (rev 0)
+++ redbutton-author/trunk/ccc.y	2007-08-22 13:19:38 UTC (rev 328)
@@ -0,0 +1,94 @@
+%{
+#include <stdio.h>
+#include <string.h>
+
+#define YYSTYPE char *
+
+void
+yyerror(const char *str)
+{
+	fprintf(stderr, "yyerror: %s\n", str);
+}
+
+int
+yywrap(void)
+{
+	return 1;
+}
+
+int
+main(void)
+{
+	yyparse();
+
+	return 0;
+}
+
+%}
+
+%token COMMENT
+%token LITERAL
+%token IDENTIFIER
+%token DEFINEDAS
+%token ALTERNATIVE
+%token LBRACKET
+%token RBRACKET
+%token ONEORMORE
+%token ENDCLAUSE
+%token INVALID
+
+%%
+clauses:
+	|
+	clauses clause
+	;
+
+clause:
+	COMMENT
+	|
+	IDENTIFIER DEFINEDAS definition ENDCLAUSE
+	{
+		printf("DEFINE:'%s'\n", $1);
+	}
+	;
+
+definition:
+	and_items
+	|
+	or_items
+	;
+
+and_items:
+	item
+	|
+	and_items item
+	;
+
+or_items:
+	item ALTERNATIVE item
+	|
+	or_items ALTERNATIVE item
+	;
+
+item:
+	LITERAL
+	{
+		printf("LITERAL:'%s'\n", $1);
+	}
+	|
+	IDENTIFIER
+	{
+		printf("IDENTIFIER:'%s'\n", $1);
+	}
+	|
+	LBRACKET IDENTIFIER RBRACKET
+	{
+		printf("[IDENTIFIER]:'%s'\n", $2);
+	}
+	|
+	IDENTIFIER ONEORMORE
+	{
+		printf("IDENTIFIER+:'%s'\n", $1);
+	}
+	;
+%%


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