#if !defined (_VARIABLES_H_)
#define _VARIABLES_H_
#include "stdc.h"
#include "array.h"
#include "hashlib.h"
#include "conftypes.h"
typedef struct var_context {
char *name;
int scope;
int flags;
struct var_context *up;
struct var_context *down;
HASH_TABLE *table;
} VAR_CONTEXT;
#define VC_HASLOCAL 0x01
#define VC_HASTMPVAR 0x02
#define VC_FUNCENV 0x04
#define VC_BLTNENV 0x08
#define VC_TEMPENV 0x10
#define VC_TEMPFLAGS (VC_FUNCENV|VC_BLTNENV|VC_TEMPENV)
#define vc_isfuncenv(vc) (((vc)->flags & VC_FUNCENV) != 0)
#define vc_isbltnenv(vc) (((vc)->flags & VC_BLTNENV) != 0)
#define vc_istempenv(vc) (((vc)->flags & (VC_TEMPFLAGS)) == VC_TEMPENV)
#define vc_istempscope(vc) (((vc)->flags & (VC_TEMPENV|VC_BLTNENV)) != 0)
#define vc_haslocals(vc) (((vc)->flags & VC_HASLOCAL) != 0)
#define vc_hastmpvars(vc) (((vc)->flags & VC_HASTMPVAR) != 0)
typedef struct variable *sh_var_value_func_t __P((struct variable *));
typedef struct variable *sh_var_assign_func_t __P((struct variable *, char *, arrayind_t));
union _value {
char *s;
intmax_t i;
COMMAND *f;
ARRAY *a;
HASH_TABLE *h;
double d;
#if defined (HAVE_LONG_DOUBLE)
long double ld;
#endif
struct variable *v;
void *opaque;
};
typedef struct variable {
char *name;
char *value;
char *exportstr;
sh_var_value_func_t *dynamic_value;
sh_var_assign_func_t *assign_func;
int attributes;
int context;
} SHELL_VAR;
typedef struct _vlist {
SHELL_VAR **list;
int list_size;
int list_len;
} VARLIST;
#define att_exported 0x0000001
#define att_readonly 0x0000002
#define att_array 0x0000004
#define att_function 0x0000008
#define att_integer 0x0000010
#define att_local 0x0000020
#define att_assoc 0x0000040
#define att_trace 0x0000080
#define attmask_user 0x0000fff
#define att_invisible 0x0001000
#define att_nounset 0x0002000
#define att_noassign 0x0004000
#define att_imported 0x0008000
#define att_special 0x0010000
#define attmask_int 0x00ff000
#define att_tempvar 0x0100000
#define att_propagate 0x0200000
#define attmask_scope 0x0f00000
#define exported_p(var) ((((var)->attributes) & (att_exported)))
#define readonly_p(var) ((((var)->attributes) & (att_readonly)))
#define array_p(var) ((((var)->attributes) & (att_array)))
#define function_p(var) ((((var)->attributes) & (att_function)))
#define integer_p(var) ((((var)->attributes) & (att_integer)))
#define local_p(var) ((((var)->attributes) & (att_local)))
#define assoc_p(var) ((((var)->attributes) & (att_assoc)))
#define trace_p(var) ((((var)->attributes) & (att_trace)))
#define invisible_p(var) ((((var)->attributes) & (att_invisible)))
#define non_unsettable_p(var) ((((var)->attributes) & (att_nounset)))
#define noassign_p(var) ((((var)->attributes) & (att_noassign)))
#define imported_p(var) ((((var)->attributes) & (att_imported)))
#define specialvar_p(var) ((((var)->attributes) & (att_special)))
#define tempvar_p(var) ((((var)->attributes) & (att_tempvar)))
#define value_cell(var) ((var)->value)
#define function_cell(var) (COMMAND *)((var)->value)
#define array_cell(var) (ARRAY *)((var)->value)
#define var_isnull(var) ((var)->value == 0)
#define var_isset(var) ((var)->value != 0)
#define var_setvalue(var, str) ((var)->value = (str))
#define var_setfunc(var, func) ((var)->value = (char *)(func))
#define var_setarray(var, arr) ((var)->value = (char *)(arr))
#define set_auto_export(var) \
do { (var)->attributes |= att_exported; array_needs_making = 1; } while (0)
#define SETVARATTR(var, attr, undo) \
((undo == 0) ? ((var)->attributes |= (attr)) \
: ((var)->attributes &= ~(attr)))
#define VSETATTR(var, attr) ((var)->attributes |= (attr))
#define VUNSETATTR(var, attr) ((var)->attributes &= ~(attr))
#define VGETFLAGS(var) ((var)->attributes)
#define VSETFLAGS(var, flags) ((var)->attributes = (flags))
#define VCLRFLAGS(var) ((var)->attributes = 0)
#define CLEAR_EXPORTSTR(var) (var)->exportstr = (char *)NULL
#define COPY_EXPORTSTR(var) ((var)->exportstr) ? savestring ((var)->exportstr) : (char *)NULL
#define SET_EXPORTSTR(var, value) (var)->exportstr = (value)
#define SAVE_EXPORTSTR(var, value) (var)->exportstr = (value) ? savestring (value) : (char *)NULL
#define FREE_EXPORTSTR(var) \
do { if ((var)->exportstr) free ((var)->exportstr); } while (0)
#define CACHE_IMPORTSTR(var, value) \
(var)->exportstr = savestring (value)
#define INVALIDATE_EXPORTSTR(var) \
do { \
if ((var)->exportstr) \
{ \
free ((var)->exportstr); \
(var)->exportstr = (char *)NULL; \
} \
} while (0)
typedef int sh_var_map_func_t __P((SHELL_VAR *));
extern VAR_CONTEXT *global_variables;
extern VAR_CONTEXT *shell_variables;
extern HASH_TABLE *shell_functions;
extern HASH_TABLE *temporary_env;
extern int variable_context;
extern char *dollar_vars[];
extern char **export_env;
extern void initialize_shell_variables __P((char **, int));
extern SHELL_VAR *set_if_not __P((char *, char *));
extern void sh_set_lines_and_columns __P((int, int));
extern void set_pwd __P((void));
extern void set_ppid __P((void));
extern void make_funcname_visible __P((int));
extern SHELL_VAR *var_lookup __P((const char *, VAR_CONTEXT *));
extern SHELL_VAR *find_function __P((const char *));
extern FUNCTION_DEF *find_function_def __P((const char *));
extern SHELL_VAR *find_variable __P((const char *));
extern SHELL_VAR *find_variable_internal __P((const char *, int));
extern SHELL_VAR *find_tempenv_variable __P((const char *));
extern SHELL_VAR *copy_variable __P((SHELL_VAR *));
extern SHELL_VAR *make_local_variable __P((const char *));
extern SHELL_VAR *bind_variable __P((const char *, char *, int));
extern SHELL_VAR *bind_function __P((const char *, COMMAND *));
extern void bind_function_def __P((const char *, FUNCTION_DEF *));
extern SHELL_VAR **map_over __P((sh_var_map_func_t *, VAR_CONTEXT *));
SHELL_VAR **map_over_funcs __P((sh_var_map_func_t *));
extern SHELL_VAR **all_shell_variables __P((void));
extern SHELL_VAR **all_shell_functions __P((void));
extern SHELL_VAR **all_visible_variables __P((void));
extern SHELL_VAR **all_visible_functions __P((void));
extern SHELL_VAR **all_exported_variables __P((void));
extern SHELL_VAR **local_exported_variables __P((void));
extern SHELL_VAR **all_local_variables __P((void));
#if defined (ARRAY_VARS)
extern SHELL_VAR **all_array_variables __P((void));
#endif
extern char **all_variables_matching_prefix __P((const char *));
extern char **make_var_array __P((HASH_TABLE *));
extern char **add_or_supercede_exported_var __P((char *, int));
extern char *get_variable_value __P((SHELL_VAR *));
extern char *get_string_value __P((const char *));
extern char *sh_get_env_value __P((const char *));
extern char *make_variable_value __P((SHELL_VAR *, char *, int));
extern SHELL_VAR *bind_variable_value __P((SHELL_VAR *, char *, int));
extern SHELL_VAR *bind_int_variable __P((char *, char *));
extern SHELL_VAR *bind_var_to_int __P((char *, intmax_t));
extern int assign_in_env __P((WORD_DESC *));
extern int unbind_variable __P((const char *));
extern int unbind_func __P((const char *));
extern int unbind_function_def __P((const char *));
extern int makunbound __P((const char *, VAR_CONTEXT *));
extern int kill_local_variable __P((const char *));
extern void delete_all_variables __P((HASH_TABLE *));
extern void delete_all_contexts __P((VAR_CONTEXT *));
extern VAR_CONTEXT *new_var_context __P((char *, int));
extern void dispose_var_context __P((VAR_CONTEXT *));
extern VAR_CONTEXT *push_var_context __P((char *, int, HASH_TABLE *));
extern void pop_var_context __P((void));
extern VAR_CONTEXT *push_scope __P((int, HASH_TABLE *));
extern void pop_scope __P((int));
extern void push_context __P((char *, int, HASH_TABLE *));
extern void pop_context __P((void));
extern void push_dollar_vars __P((void));
extern void pop_dollar_vars __P((void));
extern void dispose_saved_dollar_vars __P((void));
extern void push_args __P((WORD_LIST *));
extern void pop_args __P((void));
extern void adjust_shell_level __P((int));
extern void non_unsettable __P((char *));
extern void dispose_variable __P((SHELL_VAR *));
extern void dispose_used_env_vars __P((void));
extern void dispose_function_env __P((void));
extern void dispose_builtin_env __P((void));
extern void merge_temporary_env __P((void));
extern void merge_builtin_env __P((void));
extern void kill_all_local_variables __P((void));
extern void set_var_read_only __P((char *));
extern void set_func_read_only __P((const char *));
extern void set_var_auto_export __P((char *));
extern void set_func_auto_export __P((const char *));
extern void sort_variables __P((SHELL_VAR **));
extern void maybe_make_export_env __P((void));
extern void update_export_env_inplace __P((char *, int, char *));
extern void put_command_name_into_env __P((char *));
extern void put_gnu_argv_flags_into_env __P((intmax_t, char *));
extern void print_var_list __P((SHELL_VAR **));
extern void print_func_list __P((SHELL_VAR **));
extern void print_assignment __P((SHELL_VAR *));
extern void print_var_value __P((SHELL_VAR *, int));
extern void print_var_function __P((SHELL_VAR *));
#if defined (ARRAY_VARS)
extern SHELL_VAR *make_new_array_variable __P((char *));
extern SHELL_VAR *make_local_array_variable __P((char *));
extern void set_pipestatus_array __P((int *, int));
#endif
extern void set_pipestatus_from_exit __P((int));
extern void stupidly_hack_special_variables __P((char *));
extern int get_random_number __P((void));
extern void sv_ifs __P((char *));
extern void sv_path __P((char *));
extern void sv_mail __P((char *));
extern void sv_globignore __P((char *));
extern void sv_ignoreeof __P((char *));
extern void sv_strict_posix __P((char *));
extern void sv_optind __P((char *));
extern void sv_opterr __P((char *));
extern void sv_locale __P((char *));
#if defined (READLINE)
extern void sv_comp_wordbreaks __P((char *));
extern void sv_terminal __P((char *));
extern void sv_hostfile __P((char *));
extern void sv_winsize __P((char *));
#endif
#if defined (__CYGWIN__)
extern void sv_home __P((char *));
#endif
#if defined (HISTORY)
extern void sv_histsize __P((char *));
extern void sv_histignore __P((char *));
extern void sv_history_control __P((char *));
# if defined (BANG_HISTORY)
extern void sv_histchars __P((char *));
# endif
extern void sv_histtimefmt __P((char *));
#endif
#if defined (HAVE_TZSET) && defined (PROMPT_STRING_DECODE)
extern void sv_tz __P((char *));
#endif
#endif