add BLETCH comment to 'union node;'

[unix-history] / usr / src / bin / sh / eval.h

/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
* %sccs.include.redist.c%
*
*      @(#)eval.h      5.2 (Berkeley) %G%
*/

extern char *commandname;       /* currently executing command */
extern int exitstatus;          /* exit status of last command */
extern struct strlist *cmdenviron;  /* environment for builtin command */


struct backcmd {                /* result of evalbackcmd */
       int fd;                 /* file descriptor to read from */
       char *buf;              /* buffer */
       int nleft;              /* number of chars in buffer */
       struct job *jp;         /* job structure for command */
};


#ifdef __STDC__
void evalstring(char *);
union node;     /* BLETCH for ansi C */
void evaltree(union node *, int);
void evalbackcmd(union node *, struct backcmd *);
#else
void evalstring();
void evaltree();
void evalbackcmd();
#endif

/* in_function returns nonzero if we are currently evaluating a function */
#define in_function()   funcnest
extern int funcnest;