auto import from //depot/cupcake/@135843

1 files changed, 103 insertions, 0 deletions

diff --git a/sh/arith_lex.l b/sh/arith_lex.l
new file mode 100644
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+++ b/sh/arith_lex.l
@@ -0,0 +1,103 @@
+%{
+/*	$NetBSD: arith_lex.l,v 1.12.6.1 2005/04/07 11:38:58 tron Exp $	*/
+
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)arith_lex.l	8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: arith_lex.l,v 1.12.6.1 2005/04/07 11:38:58 tron Exp $");
+#endif
+#endif /* not lint */
+
+#include <unistd.h>
+#include "arith.h"
+#include "error.h"
+#include "expand.h"
+#include "var.h"
+
+extern int yylval;
+extern char *arith_buf, *arith_startbuf;
+#undef YY_INPUT
+#define YY_INPUT(buf,result,max) \
+	result = (*buf = *arith_buf++) ? 1 : YY_NULL;
+#define YY_NO_UNPUT
+%}
+%option noyywrap
+
+%%
+[ \t\n]	{ ; }
+0x[0-9a-fA-F]+	{ yylval = strtol(yytext, 0, 0); return(ARITH_NUM); }
+0[0-7]*		{ yylval = strtol(yytext, 0, 0); return(ARITH_NUM); }
+[1-9][0-9]*	{ yylval = strtol(yytext, 0, 0); return(ARITH_NUM); }
+[A-Za-z_][A-Za-z_0-9]*	{ char *v = lookupvar(yytext);
+			if (v) {
+				yylval = strtol(v, &v, 0);
+				if (*v == 0)
+					return ARITH_NUM;
+			}
+			error("arith: syntax error: \"%s\"", arith_startbuf);
+		}
+"("	{ return(ARITH_LPAREN); }
+")"	{ return(ARITH_RPAREN); }
+"||"	{ return(ARITH_OR); }
+"&&"	{ return(ARITH_AND); }
+"|"	{ return(ARITH_BOR); }
+"^"	{ return(ARITH_BXOR); }
+"&"	{ return(ARITH_BAND); }
+"=="	{ return(ARITH_EQ); }
+"!="	{ return(ARITH_NE); }
+">"	{ return(ARITH_GT); }
+">="	{ return(ARITH_GE); }
+"<"	{ return(ARITH_LT); }
+"<="	{ return(ARITH_LE); }
+"<<"	{ return(ARITH_LSHIFT); }
+">>"	{ return(ARITH_RSHIFT); }
+"*"	{ return(ARITH_MUL); }
+"/"	{ return(ARITH_DIV); }
+"%"	{ return(ARITH_REM); }
+"+"	{ return(ARITH_ADD); }
+"-"	{ return(ARITH_SUB); }
+"~"	{ return(ARITH_BNOT); }
+"!"	{ return(ARITH_NOT); }
+.	{ error("arith: syntax error: \"%s\"", arith_startbuf); }
+%%
+
+void
+arith_lex_reset() {
+#ifdef YY_NEW_FILE
+	YY_NEW_FILE;
+#endif
+}