1 files changed, 103 insertions, 0 deletions
diff --git a/bin/dash/src/parser.h b/bin/dash/src/parser.h
new file mode 100644
index 00000000..6597faa8
--- /dev/null
+++ b/bin/dash/src/parser.h
@@ -0,0 +1,103 @@
+/*-
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * Copyright (c) 1997-2005
+ *	Herbert Xu <herbert@gondor.apana.org.au>.  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.
+ *
+ *	@(#)parser.h	8.3 (Berkeley) 5/4/95
+ */
+
+#include "token.h"
+
+/* control characters in argument strings */
+#define CTL_FIRST -127		/* first 'special' character */
+#define CTLESC -127		/* escape next character */
+#define CTLVAR -126		/* variable defn */
+#define CTLENDVAR -125
+#define CTLBACKQ -124
+#define	CTLARI -122		/* arithmetic expression */
+#define	CTLENDARI -121
+#define	CTLQUOTEMARK -120
+#define	CTL_LAST -120		/* last 'special' character */
+
+/* variable substitution byte (follows CTLVAR) */
+#define VSTYPE	0x0f		/* type of variable substitution */
+#define VSNUL	0x10		/* colon--treat the empty string as unset */
+
+/* values of VSTYPE field */
+#define VSNORMAL	0x1		/* normal variable:  $var or ${var} */
+#define VSMINUS		0x2		/* ${var-text} */
+#define VSPLUS		0x3		/* ${var+text} */
+#define VSQUESTION	0x4		/* ${var?message} */
+#define VSASSIGN	0x5		/* ${var=text} */
+#define VSTRIMRIGHT	0x6		/* ${var%pattern} */
+#define VSTRIMRIGHTMAX 	0x7		/* ${var%%pattern} */
+#define VSTRIMLEFT	0x8		/* ${var#pattern} */
+#define VSTRIMLEFTMAX	0x9		/* ${var##pattern} */
+#define VSLENGTH	0xa		/* ${#var} */
+
+/* values of checkkwd variable */
+#define CHKALIAS	0x1
+#define CHKKWD		0x2
+#define CHKNL		0x4
+#define CHKEOFMARK	0x8
+
+
+/*
+ * NEOF is returned by parsecmd when it encounters an end of file.  It
+ * must be distinct from NULL, so we use the address of a variable that
+ * happens to be handy.
+ */
+extern int lasttoken;
+extern int tokpushback;
+#define NEOF ((union node *)&tokpushback)
+extern int whichprompt;		/* 1 == PS1, 2 == PS2 */
+extern int checkkwd;
+
+
+int isassignment(const char *p);
+union node *parsecmd(int);
+void fixredir(union node *, const char *, int);
+const char *getprompt(void *);
+const char *getrprompt(void *);
+const char *const *findkwd(const char *);
+char *endofname(const char *);
+const char *expandstr(const char *);
+
+static inline int
+goodname(const char *p)
+{
+	return !*endofname(p);
+}
+
+static inline int parser_eof(void)
+{
+	return tokpushback && lasttoken == TEOF;
+}