/********** * Header file for control.c * $Id: control.h,v 1.3 2005/05/30 20:28:30 sjborley Exp $**********/#ifndef CONTROL_H#define CONTROL_H#include <bool.h>/* Stuff to do control structures. We keep a history (seperate from * the cshpar history, for now at least) of commands and their event * numbers, with a block considered as a statement. In a goto, the * first word in co_text is where to go, likewise for label. For * conditional controls, we have to call ft_getpnames and ft_evaluate * each time, since the dvec pointers will change... Also we should do * variable and backquote substitution each time...  */struct control {    int co_type;            /* One of CO_* ... */    wordlist *co_cond;      /* if, while, dowhile */    char *co_foreachvar;        /* foreach */    int co_numtimes;        /* repeat, break & continue levels */    int co_timestodo;       /* the number of times left during a repeat loop */    wordlist *co_text;      /* Ordinary text and foreach values. */    struct control *co_parent;  /* If this is inside a block. */    struct control *co_children;    /* The contents of this block. */    struct control *co_elseblock;   /* For if-then-else. */    struct control *co_next;    struct control *co_prev;} ;enum co_command {    CO_UNFILLED,    CO_STATEMENT,    CO_WHILE,    CO_DOWHILE,    CO_IF,    CO_FOREACH,    CO_BREAK,    CO_CONTINUE,    CO_LABEL,    CO_GOTO,    CO_REPEAT};#define CONTROLSTACKSIZE 256    /* Better be enough. */extern struct control *control[CONTROLSTACKSIZE];extern struct control *cend[CONTROLSTACKSIZE];extern int stackp;extern bool cp_dounixcom;#endif /* CONTROL_H */