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/* str-list.h: Declarations for string lists.
Copyright 1993, 1994, 2007, 2008 Karl Berry.
Copyright 1999, 2005 Olaf Weber.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>. */
#ifndef KPATHSEA_STR_LIST_H
#define KPATHSEA_STR_LIST_H
#include <kpathsea/c-proto.h>
#include <kpathsea/types.h>
/* Lists of strings; used for, e.g., directory lists. */
typedef struct
{
unsigned length;
string *list;
} str_list_type;
#define STR_LIST_LENGTH(l) ((l).length)
#define STR_LIST(l) ((l).list)
#define STR_LIST_ELT(l, n) STR_LIST (l)[n]
#define STR_LIST_LAST_ELT(l) STR_LIST_ELT (l, STR_LIST_LENGTH (l) - 1)
/* Return a new, empty, list. */
extern str_list_type str_list_init P1H(void);
/* Append the string S to the list L. It's up to the caller to not
deallocate S; we don't copy it. Also up to the caller to terminate
the list with a null entry. */
extern void str_list_add P2H(str_list_type *l, string s);
/* Append all the elements from MORE to TARGET. */
extern void str_list_concat P2H(str_list_type * target, str_list_type more);
/* Free the space for the list elements (but not the list elements
themselves). */
extern void str_list_free P1H(str_list_type *l);
/* Append each element of MORE to each element of TARGET. */
extern void str_list_concat_elements
P2H(str_list_type *target, str_list_type more);
/* Remove duplicate elements from L, freeing their space. */
extern void str_list_uniqify P1H(str_list_type *l);
#endif /* not KPATHSEA_STR_LIST_H */
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