initial import from bash_3.1dfsg.orig.tar.gz

1 files changed, 111 insertions, 0 deletions

diff --git a/array.h b/array.h
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+++ b/array.h
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+/* array.h -- definitions for the interface exported by array.c that allows
+   the rest of the shell to manipulate array variables. */
+
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   Bash is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Bash; see the file COPYING.  If not, write to the Free Software
+   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#ifndef _ARRAY_H_
+#define _ARRAY_H_
+
+#include "stdc.h"
+
+typedef intmax_t	arrayind_t;
+
+enum atype {array_indexed, array_assoc};
+
+typedef struct array {
+	enum atype	type;
+	arrayind_t	max_index, num_elements;
+	struct array_element *head;
+} ARRAY;
+
+typedef struct array_element {
+	arrayind_t	ind;
+	char	*value;
+	struct array_element *next, *prev;
+} ARRAY_ELEMENT;
+
+typedef int sh_ae_map_func_t __P((ARRAY_ELEMENT *, void *));
+
+/* Basic operations on entire arrays */
+extern ARRAY	*array_create __P((void));
+extern void	array_flush __P((ARRAY *));
+extern void	array_dispose __P((ARRAY *));
+extern ARRAY	*array_copy __P((ARRAY *));
+extern ARRAY	*array_slice __P((ARRAY *, ARRAY_ELEMENT *, ARRAY_ELEMENT *));
+extern void	array_walk __P((ARRAY   *, sh_ae_map_func_t *, void *));
+
+extern ARRAY_ELEMENT *array_shift __P((ARRAY *, int, int));
+extern int	array_rshift __P((ARRAY *, int, char *));
+extern ARRAY_ELEMENT *array_unshift_element __P((ARRAY *));
+extern int	array_shift_element __P((ARRAY *, char *));
+extern ARRAY	*array_quote __P((ARRAY *));
+
+extern char	*array_subrange __P((ARRAY *, arrayind_t, arrayind_t, int, int));
+extern char	*array_patsub __P((ARRAY *, char *, char *, int));
+
+/* Basic operations on array elements. */
+extern ARRAY_ELEMENT *array_create_element __P((arrayind_t, char *));
+extern ARRAY_ELEMENT *array_copy_element __P((ARRAY_ELEMENT *));
+extern void	array_dispose_element __P((ARRAY_ELEMENT *));
+
+extern int	array_insert __P((ARRAY *, arrayind_t, char *));
+extern ARRAY_ELEMENT *array_remove __P((ARRAY *, arrayind_t));
+extern char	*array_reference __P((ARRAY *, arrayind_t));
+
+/* Converting to and from arrays */
+extern WORD_LIST *array_to_word_list __P((ARRAY *));
+extern ARRAY *array_from_word_list __P((WORD_LIST *));
+extern WORD_LIST *array_keys_to_word_list __P((ARRAY *));
+
+extern ARRAY *array_assign_list __P((ARRAY *, WORD_LIST *));
+
+extern char **array_to_argv __P((ARRAY *));
+
+extern char *array_to_assign __P((ARRAY *, int));
+extern char *array_to_string __P((ARRAY *, char *, int));
+extern ARRAY *array_from_string __P((char *, char *));
+
+/* Flags for array_shift */
+#define AS_DISPOSE	0x01
+
+#define array_num_elements(a)	((a)->num_elements)
+#define array_max_index(a)	((a)->max_index)
+#define array_head(a)		((a)->head)
+#define array_empty(a)		((a)->num_elements == 0)
+
+#define element_value(ae)	((ae)->value)
+#define element_index(ae)	((ae)->ind)
+#define element_forw(ae)	((ae)->next)
+#define element_back(ae)	((ae)->prev)
+
+/* Convenience */
+#define array_push(a,v)	\
+  do { array_rshift ((a), 1, (v)); } while (0)
+#define array_pop(a) \
+  do { array_dispose_element (array_shift ((a), 1, 0)); } while (0)
+
+#define GET_ARRAY_FROM_VAR(n, v, a) \
+  do { \
+    (v) = find_variable (n); \
+    (a) = ((v) && array_p ((v))) ? array_cell (v) : (ARRAY *)0; \
+  } while (0)
+
+#define ALL_ELEMENT_SUB(c)	((c) == '@' || (c) == '*')
+
+#endif /* _ARRAY_H_ */