Imported Upstream version 93u+upstream

1 files changed, 221 insertions, 0 deletions

diff --git a/src/cmd/ksh93/include/shnodes.h b/src/cmd/ksh93/include/shnodes.h
new file mode 100644
index 0000000..6e0eb55
--- /dev/null
+++ b/src/cmd/ksh93/include/shnodes.h
@@ -0,0 +1,221 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1982-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                  David Korn <dgk@research.att.com>                   *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+#ifndef _SHNODES_H
+#define _SHNODES_H	1
+/*
+ *	UNIX shell
+ *	Written by David Korn
+ *
+ */
+
+
+#include	<ast.h>
+#include	"argnod.h"
+
+/* command tree for tretyp */
+#define FINT		(02<<COMBITS)		/* non-interruptable */
+#define FAMP		(04<<COMBITS)		/* background */
+#define FPIN		(010<<COMBITS)		/* input is a pipe */
+#define FPOU		(040<<COMBITS)		/* output is a pipe */
+#define FPCL		(0100<<COMBITS)		/* close the pipe */
+#define FCOOP		(0200<<COMBITS)		/* cooperating process */
+#define FSHOWME		(0400<<COMBITS)		/* set for showme commands  */
+#define FALTPIPE	(02000<<COMBITS)	/* alternate pipes &| */
+#define FPOSIX		(02<<COMBITS)		/* posix semantics function */
+#define FLINENO		(04<<COMBITS)		/* for/case has line number */
+#define FOPTGET		(010<<COMBITS)		/* function calls getopts */
+
+#define TNEGATE		(01<<COMBITS)		/* ! inside [[...]] */
+#define TBINARY		(02<<COMBITS)		/* binary operator in [[...]] */
+#define TUNARY		(04<<COMBITS)		/* unary operator in [[...]] */
+#define TTEST		(010<<COMBITS)
+#define TPAREN		(TBINARY|TUNARY)
+#define TSHIFT		(COMBITS+4)
+#define TNSPACE		(TFUN|COMSCAN)
+
+#define TCOM	0
+#define TPAR	1
+#define TFIL	2
+#define TLST	3
+#define TIF	4
+#define TWH	5
+#define TUN	(TWH|COMSCAN)
+#define TTST	6
+#define TSW	7
+#define TAND	8
+#define TORF	9
+#define TFORK	10
+#define TFOR	11
+#define TSELECT	(TFOR|COMSCAN)
+#define TARITH	12
+#define	TTIME	13
+#define TSETIO	14
+#define TFUN	15
+
+/* this node is a proforma for those that follow */
+
+struct trenod
+{
+	int		tretyp;
+	struct ionod	*treio;
+};
+
+
+struct forknod
+{
+	int		forktyp;
+	struct ionod	*forkio;
+	Shnode_t	*forktre;
+	int		forkline;
+};
+
+
+struct ifnod
+{
+	int		iftyp;
+	Shnode_t	*iftre;
+	Shnode_t	*thtre;
+	Shnode_t	*eltre;
+};
+
+struct whnod
+{
+	int		whtyp;
+	Shnode_t	*whtre;
+	Shnode_t	*dotre;
+	struct arithnod	*whinc;
+};
+
+struct fornod
+{
+	int		fortyp;
+	char	 	*fornam;
+	Shnode_t	*fortre;
+	struct comnod	*forlst;
+	int		forline;
+};
+
+struct swnod
+{
+	int		swtyp;
+	struct argnod	*swarg;
+	struct regnod	*swlst;
+	struct ionod	*swio;
+	int		swline;
+};
+
+struct regnod
+{
+	struct argnod	*regptr;
+	Shnode_t	*regcom;
+	struct regnod	*regnxt;
+	char		regflag;
+};
+
+struct parnod
+{
+	int		partyp;
+	Shnode_t	*partre;
+};
+
+struct lstnod
+{
+	int		lsttyp;
+	Shnode_t	*lstlef;
+	Shnode_t	*lstrit;
+};
+
+/* tst is same as lst, but with extra field for line number */
+struct tstnod
+{
+	struct lstnod	tstlst;
+	int		tstline;	
+};
+
+struct functnod
+{
+	int		functtyp;
+	char		*functnam;
+	Shnode_t	*functtre;
+	int		functline;
+	off_t		functloc;
+	struct slnod	*functstak;
+	struct comnod	*functargs;
+};
+
+struct arithnod
+{
+	int		artyp;
+	int		arline;
+	struct argnod	*arexpr;
+	void		*arcomp;
+};
+
+
+/* types of ionodes stored in iofile  */
+#define IOUFD		0x3f	/* file descriptor number mask */
+#define IOPUT		0x40	/* > redirection operator */
+#define IOAPP		0x80	/* >> redirection operator */
+#define IODOC		0x100	/* << redirection operator */
+#define IOMOV		0x200	/* <& or >& operators */
+#define IOCLOB		0x400	/* noclobber bit */
+#define IORDW		0x800	/* <> redirection operator */
+#define IORAW		0x1000	/* no expansion needed for filename */
+#define IOSTRG		0x2000	/* here-document stored as incore string */
+#define IOSTRIP 	0x4000	/* strip leading tabs for here-document */
+#define IOQUOTE		0x8000	/* here-document delimiter was quoted */
+#define IOVNM		0x10000	/* iovname field is non-zero */
+#define IOLSEEK		0x20000	/* seek operators <# or >#  */
+#define IOARITH		0x40000	/* arithmetic seek <# ((expr))  */
+#define IOREWRITE	0x80000	/* arithmetic seek <# ((expr))  */
+#define IOCOPY		IOCLOB	/* copy skipped lines onto standard output */
+#define IOPROCSUB	IOARITH	/* process substitution redirection */
+
+union Shnode_u
+{
+	struct argnod	arg;
+	struct ionod	io;
+	struct whnod	wh;
+	struct swnod	sw;
+	struct ifnod	if_;
+	struct dolnod	dol;
+	struct comnod	com;
+	struct trenod	tre;
+	struct forknod	fork;
+	struct fornod	for_;
+	struct regnod	reg;
+	struct parnod	par;
+	struct lstnod	lst;
+	struct tstnod	tst;
+	struct functnod	funct;
+	struct arithnod	ar;
+};
+
+extern void			sh_freeup(Shell_t*);
+extern void			sh_funstaks(struct slnod*,int);
+extern Sfio_t 			*sh_subshell(Shell_t*,Shnode_t*, int, int);
+#if defined(__EXPORT__) && defined(_BLD_DLL) && defined(_BLD_shell) 
+   __EXPORT__
+#endif
+extern int			sh_tdump(Sfio_t*, const Shnode_t*);
+extern Shnode_t			*sh_trestore(Shell_t*, Sfio_t*);
+
+#endif /* _SHNODES_H */