add directory bin

bin/old/bash/bash-1.05/variables.h

@@ -0,0 +1,41 @@
+/* variables.h -- data structures for shell variables. */
+
+/* What a shell variable looks like. */
+typedef struct variable {
+  struct variable *next;	/* Next variable in the list. */
+  char *name;			/* Symbol that the user types. */
+  char *value;			/* Value that is returned. */
+  char *function;		/* Function cell. */
+  int attributes;		/* export, readonly, array, invisible... */
+  int context;			/* Which context this variable belongs to. */
+  struct variable *prev_context; /* Value from previous context or NULL. */
+} SHELL_VAR;
+
+/* The various attributes that a given variable can have.
+   We only reserve one byte of the INT. */
+#define att_exported  0x01	/* %00000001 (export to environment) */
+#define att_readonly  0x02	/* %00000010 (cannot change)	     */
+#define att_invisible 0x04	/* %00000100 (cannot see)	     */
+#define att_array     0x08	/* %00001000 (value is an array)     */
+#define att_nounset   0x10	/* %00010000 (cannot unset)	     */
+
+/* This is on the way out.  It is only here so that
+   set_or_show_variables () has a flag value for the "-f" flag. */
+#define att_function  0x20	/* %00100000 */
+
+#define exported_p(var)		((((var)->attributes) & (att_exported)))
+#define readonly_p(var)		((((var)->attributes) & (att_readonly)))
+#define invisible_p(var)	((((var)->attributes) & (att_invisible)))
+#define array_p(var)		((((var)->attributes) & (att_array)))
+#define function_p(var)		((((var)->function) != (char *)NULL))
+
+#define function_cell(var) ((var)->function)
+#define value_cell(var) ((var)->value)
+
+/* Stuff for hacking variables. */
+extern SHELL_VAR *variable_list, *bind_variable (), *find_variable ();
+extern SHELL_VAR *copy_variable ();
+extern char *get_string_value (), *dollar_vars[];
+extern char **export_env;
+
+extern int variable_context;