Imported Upstream version 93u+upstream

1 files changed, 311 insertions, 0 deletions

diff --git a/src/cmd/ksh93/include/nval.h b/src/cmd/ksh93/include/nval.h
new file mode 100644
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--- /dev/null
+++ b/src/cmd/ksh93/include/nval.h
@@ -0,0 +1,311 @@
+/***********************************************************************
+*                                                                      *
+*               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 NV_DEFAULT
+/*
+ * David Korn
+ * AT&T Labs
+ *
+ * Interface definitions of structures for name-value pairs
+ * These structures are used for named variables, functions and aliases
+ *
+ */
+
+
+#include	<ast.h>
+#include	<cdt.h>
+#include	<option.h>
+
+/* for compatibility with old hash library */
+#define Hashtab_t	Dt_t
+#define HASH_BUCKET	1
+#define HASH_NOSCOPE	2
+#define HASH_SCOPE	4
+#define hashscope(x)	dtvnext(x)
+
+typedef struct Namval Namval_t;
+typedef struct Namfun Namfun_t;
+typedef struct Namdisc Namdisc_t;
+typedef struct Nambfun Nambfun_t;
+typedef struct Namarray Namarr_t;
+typedef struct Namdecl Namdecl_t;
+
+/*
+ * This defines the template for nodes that have their own assignment
+ * and or lookup functions
+ */
+struct Namdisc
+{
+	size_t	dsize;
+	void	(*putval)(Namval_t*, const char*, int, Namfun_t*);
+	char	*(*getval)(Namval_t*, Namfun_t*);
+	Sfdouble_t	(*getnum)(Namval_t*, Namfun_t*);
+	char	*(*setdisc)(Namval_t*, const char*, Namval_t*, Namfun_t*);
+	Namval_t *(*createf)(Namval_t*, const char*, int, Namfun_t*);
+	Namfun_t *(*clonef)(Namval_t*, Namval_t*, int, Namfun_t*);
+	char	*(*namef)(Namval_t*, Namfun_t*);
+	Namval_t *(*nextf)(Namval_t*, Dt_t*, Namfun_t*);
+	Namval_t *(*typef)(Namval_t*, Namfun_t*);
+	int	(*readf)(Namval_t*, Sfio_t*, int, Namfun_t*);
+	int	(*writef)(Namval_t*, Sfio_t*, int, Namfun_t*);
+};
+
+struct Namfun
+{
+	const Namdisc_t	*disc;
+	char		nofree;
+	unsigned char	subshell;
+	unsigned short	dsize;
+	Namfun_t	*next;
+	char		*last;
+	Namval_t	*type;
+};
+
+struct Nambfun
+{
+	Namfun_t        fun;
+	int		num;
+	const char	**bnames;
+	Namval_t	*bltins[1];
+};
+
+/* This is an array template header */
+struct Namarray
+{
+	Namfun_t	hdr;
+	long		nelem;				/* number of elements */
+	void	*(*fun)(Namval_t*,const char*,int);	/* associative arrays */
+	void		*fixed;			/* for fixed sized arrays */
+	Dt_t		*table;			/* for subscripts */
+	void		*scope;			/* non-zerp when scoped */
+};
+
+/* The context pointer for declaration command */
+struct Namdecl
+{
+	Namval_t	*tp;			/* point to type */
+	const char	*optstring;
+	void		*optinfof;
+};
+
+/* attributes of name-value node attribute flags */
+
+#define NV_DEFAULT 0
+/* This defines the attributes for an attributed name-value pair node */
+struct Namval
+{
+	Dtlink_t	nvlink;		/* space for cdt links */
+	char		*nvname;	/* pointer to name of the node */
+	unsigned short	nvflag; 	/* attributes */
+	unsigned short 	nvsize;		/* size or base */
+#ifdef _NV_PRIVATE
+	_NV_PRIVATE
+#else
+	Namfun_t	*nvfun;
+	char		*nvalue;
+	char		*nvprivate;
+#endif /* _NV_PRIVATE */
+};
+
+#define NV_CLASS	".sh.type"
+#define NV_DATA		"_"	/* special class or instance variable */
+#define NV_MINSZ	(sizeof(struct Namval)-sizeof(Dtlink_t)-sizeof(char*))
+#define nv_namptr(p,n)	((Namval_t*)((char*)(p)+(n)*NV_MINSZ-sizeof(Dtlink_t)))
+
+/* The following attributes are for internal use */
+#define NV_NOFREE	0x200	/* don't free the space when releasing value */
+#define NV_ARRAY	0x400	/* node is an array */
+#define NV_REF		0x4000	/* reference bit */
+#define NV_TABLE	0x800	/* node is a dictionary table */
+#define NV_IMPORT	0x1000	/* value imported from environment */
+#define NV_MINIMAL	NV_IMPORT	/* node does not contain all fields */
+
+#define NV_INTEGER	0x2	/* integer attribute */
+/* The following attributes are valid only when NV_INTEGER is off */
+#define NV_LTOU		0x4	/* convert to uppercase */
+#define NV_UTOL		0x8	/* convert to lowercase */
+#define NV_ZFILL	0x10	/* right justify and fill with leading zeros */
+#define NV_RJUST	0x20	/* right justify and blank fill */
+#define NV_LJUST	0x40	/* left justify and blank fill */
+#define NV_BINARY	0x100	/* fixed size data buffer */
+#define NV_RAW		NV_LJUST	/* used only with NV_BINARY */
+#define NV_HOST		(NV_RJUST|NV_LJUST)	/* map to host filename */
+
+/* The following attributes do not effect the value */
+#define NV_RDONLY	0x1	/* readonly bit */
+#define NV_EXPORT	0x2000	/* export bit */
+#define NV_TAGGED	0x8000	/* user define tag bit */
+
+/* The following are used with NV_INTEGER */
+#define NV_SHORT	(NV_RJUST)	/* when integers are not long */
+#define NV_LONG		(NV_UTOL)	/* for long long and long double */
+#define NV_UNSIGN	(NV_LTOU)	/* for unsigned quantities */
+#define NV_DOUBLE	(NV_INTEGER|NV_ZFILL)	/* for floating point */
+#define NV_EXPNOTE	(NV_LJUST)	/* for scientific notation */
+#define NV_HEXFLOAT	(NV_LTOU)	/* for C99 base16 float notation */
+
+/*  options for nv_open */
+
+#define NV_APPEND	0x10000		/* append value */
+#define NV_MOVE		0x8000000	/* for use with nv_clone */
+#define NV_ADD		8
+					/* add node if not found */
+#define NV_ASSIGN	NV_NOFREE	/* assignment is possible */
+#define NV_NOASSIGN	0		/* backward compatibility */
+#define NV_NOARRAY	0x200000	/* array name not possible */
+#define NV_IARRAY	0x400000	/* for indexed array */
+#define NV_NOREF	NV_REF		/* don't follow reference */
+#define NV_IDENT	0x80		/* name must be identifier */
+#define NV_VARNAME	0x20000		/* name must be ?(.)id*(.id) */
+#define NV_NOADD	0x40000		/* do not add node */ 	
+#define NV_NOSCOPE	0x80000		/* look only in current scope */
+#define NV_NOFAIL	0x100000	/* return 0 on failure, no msg */
+#define NV_NODISC	NV_IDENT	/* ignore disciplines */
+
+#define NV_FUNCT	NV_IDENT	/* option for nv_create */
+#define NV_BLTINOPT	NV_ZFILL	/* mark builtins in libcmd */
+
+#define NV_PUBLIC	(~(NV_NOSCOPE|NV_ASSIGN|NV_IDENT|NV_VARNAME|NV_NOADD))
+
+/* numeric types */
+#define NV_INT16P	(NV_LJUST|NV_SHORT|NV_INTEGER)
+#define NV_INT16	(NV_SHORT|NV_INTEGER)
+#define NV_UINT16	(NV_UNSIGN|NV_SHORT|NV_INTEGER)
+#define NV_UINT16P	(NV_LJUSTNV_UNSIGN|NV_SHORT|NV_INTEGER)
+#define NV_INT32	(NV_INTEGER)
+#define NV_UNT32	(NV_UNSIGN|NV_INTEGER)
+#define NV_INT64	(NV_LONG|NV_INTEGER)
+#define NV_UINT64	(NV_UNSIGN|NV_LONG|NV_INTEGER)
+#define NV_FLOAT	(NV_SHORT|NV_DOUBLE)
+#define NV_LDOUBLE	(NV_LONG|NV_DOUBLE)
+
+/* name-value pair macros */
+#define nv_isattr(np,f)		((np)->nvflag & (f))
+#define nv_onattr(n,f)		((n)->nvflag |= (f))
+#define nv_offattr(n,f)		((n)->nvflag &= ~(f))
+#define nv_isarray(np)		(nv_isattr((np),NV_ARRAY))
+
+/* The following are operations for associative arrays */
+#define NV_AINIT	1	/* initialize */
+#define NV_AFREE	2	/* free array */
+#define NV_ANEXT	3	/* advance to next subscript */
+#define NV_ANAME	4	/* return subscript name */
+#define NV_ADELETE	5	/* delete current subscript */
+#define NV_AADD		6	/* add subscript if not found */
+#define NV_ACURRENT	7	/* return current subscript Namval_t* */
+#define NV_ASETSUB	8	/* set current subscript */
+
+/* The following are for nv_disc */
+#define NV_FIRST	1
+#define NV_LAST		2
+#define NV_POP		3
+#define NV_CLONE	4
+
+/* The following are operations for nv_putsub() */
+#define ARRAY_BITS	22
+#define ARRAY_ADD	(1L<<ARRAY_BITS)	/* add subscript if not found */
+#define	ARRAY_SCAN	(2L<<ARRAY_BITS)	/* For ${array[@]} */
+#define ARRAY_UNDEF	(4L<<ARRAY_BITS)	/* For ${array} */
+
+
+/* These  are disciplines provided by the library for use with nv_discfun */
+#define NV_DCADD	0	/* used to add named disciplines */
+#define NV_DCRESTRICT	1	/* variable that are restricted in rsh */
+
+#if defined(__EXPORT__) && defined(_DLL)
+#   ifdef _BLD_shell
+#	define extern __EXPORT__
+#   else
+#	define extern __IMPORT__
+#   endif /* _BLD_shell */
+#endif /* _DLL */
+/* prototype for array interface*/
+extern Namarr_t	*nv_arrayptr(Namval_t*);
+extern Namarr_t	*nv_setarray(Namval_t*,void*(*)(Namval_t*,const char*,int));
+extern int	nv_arraynsub(Namarr_t*);
+extern void	*nv_associative(Namval_t*,const char*,int);
+extern int	nv_aindex(Namval_t*);
+extern int	nv_nextsub(Namval_t*);
+extern char	*nv_getsub(Namval_t*);
+extern Namval_t	*nv_putsub(Namval_t*, char*, long);
+extern Namval_t	*nv_opensub(Namval_t*);
+
+/* name-value pair function prototypes */
+extern int		nv_adddisc(Namval_t*, const char**, Namval_t**);
+extern int		nv_clone(Namval_t*, Namval_t*, int);
+extern void 		nv_close(Namval_t*);
+extern void		*nv_context(Namval_t*);
+extern Namval_t		*nv_create(const char*, Dt_t*, int,Namfun_t*);
+extern void		nv_delete(Namval_t*, Dt_t*, int);
+extern Dt_t		*nv_dict(Namval_t*);
+extern Sfdouble_t	nv_getn(Namval_t*, Namfun_t*);
+extern Sfdouble_t	nv_getnum(Namval_t*);
+extern char 		*nv_getv(Namval_t*, Namfun_t*);
+extern char 		*nv_getval(Namval_t*);
+extern Namfun_t		*nv_hasdisc(Namval_t*, const Namdisc_t*);
+extern int		nv_isnull(Namval_t*);
+extern Namfun_t		*nv_isvtree(Namval_t*);
+extern Namval_t		*nv_lastdict(void);
+extern Namval_t		*nv_mkinttype(char*, size_t, int, const char*, Namdisc_t*);
+extern void 		nv_newattr(Namval_t*,unsigned,int);
+extern void 		nv_newtype(Namval_t*);
+extern Namval_t		*nv_open(const char*,Dt_t*,int);
+extern void 		nv_putval(Namval_t*,const char*,int);
+extern void 		nv_putv(Namval_t*,const char*,int,Namfun_t*);
+extern int		nv_rename(Namval_t*,int);
+extern int		nv_scan(Dt_t*,void(*)(Namval_t*,void*),void*,int,int);
+extern char 		*nv_setdisc(Namval_t*,const char*,Namval_t*,Namfun_t*);
+extern void		nv_setref(Namval_t*, Dt_t*,int);
+extern int		nv_settype(Namval_t*, Namval_t*, int);
+extern void 		nv_setvec(Namval_t*,int,int,char*[]);
+extern void		nv_setvtree(Namval_t*);
+extern int 		nv_setsize(Namval_t*,int);
+extern Namfun_t		*nv_disc(Namval_t*,Namfun_t*,int);
+extern void 		nv_unset(Namval_t*);	 /*obsolete */
+extern void 		_nv_unset(Namval_t*,int);
+extern Namval_t		*nv_search(const char *, Dt_t*, int);
+extern char		*nv_name(Namval_t*);
+extern Namval_t		*nv_type(Namval_t*);
+extern void		nv_addtype(Namval_t*,const char*, Optdisc_t*, size_t);
+extern const Namdisc_t	*nv_discfun(int);
+
+#ifdef _DLL
+#   undef extern
+#endif /* _DLL */
+
+#define nv_unset(np)		_nv_unset(np,0)
+#define nv_size(np)		nv_setsize((np),-1)
+#define nv_stack(np,nf)		nv_disc(np,nf,0)
+
+#if 0
+/*
+ * The names of many functions were changed in early '95
+ * Here is a mapping to the old names
+ */
+#   define nv_istype(np)	nv_isattr(np)
+#   define nv_newtype(np)	nv_newattr(np)
+#   define nv_namset(np,a,b)	nv_open(np,a,b)
+#   define nv_free(np)		nv_unset(np,0)
+#   define nv_settype(np,a,b,c)	nv_setdisc(np,a,b,c)
+#   define nv_search(np,a,b)	nv_open(np,a,((b)?0:NV_NOADD))
+#   define settype	setdisc
+#endif
+
+#endif /* NV_DEFAULT */