argnod.h revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1982-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* A copy of the License is available at *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* David Korn <dgk@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
#ifndef ARG_RAW
/*
* struct to hold a word argument
* Written by David Korn
*
*/
#include <stak.h>
struct ionod
{
unsigned iofile;
char *ioname;
char *iodelim;
long iosize;
char *iovname;
};
struct comnod
{
int comtyp;
void *comnamp;
void *comnamq;
void *comstate;
int comline;
};
#define COMBITS 4
struct slnod /* struct for link list of stacks */
{
};
/*
* This struct is use to hold $* lists and arrays
*/
struct dolnod
{
short dolrefcnt; /* reference count */
short dolmax; /* size of dolval array */
short dolnum; /* number of elements */
short dolbot; /* current first element */
};
/*
* This struct is used to hold word arguments of variable size during
* parsing and during expansion. The flags indicate what processing
* is required on the argument.
*/
struct argnod
{
union
{
char *cp;
} argnxt;
union
{
char *cp;
int len;
} argchn;
unsigned char argflag;
char argval[4];
};
/* The following should evaluate to the offset of argval in argnod */
#define ARG_SPARE 1
/* legal argument flags */
/* The following can be passed as options to sh_macexpand() */
extern char **sh_argbuild(int*,const struct comnod*,int);
extern struct dolnod *sh_argcreate(char*[]);
extern char *sh_argdolminus(void);
extern int sh_argopts(int,char*[]);
extern void sh_argset(char*[]);
extern const char e_heading[];
extern const char e_off[];
extern const char e_on[];
extern const char e_sptbnl[];
extern const char e_subst[];
extern const char e_option[];
extern const char e_exec[];
extern const char e_devfdNN[];
extern const char e_devfdstd[];
#endif /* ARG_RAW */