argz.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:7k
- /* Routines for dealing with ' ' separated arg vectors.
- Copyright (C) 1995,96,97,98,99,2000,2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C 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.
- The GNU C 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 the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _ARGZ_H
- #define _ARGZ_H 1
- #include <features.h>
- #define __need_error_t
- #include <errno.h>
- #include <string.h> /* Need size_t, and strchr is called below. */
- #ifndef __const
- # define __const const
- #endif
- #ifndef __error_t_defined
- typedef int error_t;
- #endif
- __BEGIN_DECLS
- /* Make a ' ' separated arg vector from a unix argv vector, returning it in
- ARGZ, and the total length in LEN. If a memory allocation error occurs,
- ENOMEM is returned, otherwise 0. The result can be destroyed using free. */
- extern error_t __argz_create (char *__const __argv[], char **__restrict __argz,
- size_t *__restrict __len) __THROW;
- extern error_t argz_create (char *__const __argv[], char **__restrict __argz,
- size_t *__restrict __len) __THROW;
- /* Make a ' ' separated arg vector from a SEP separated list in
- STRING, returning it in ARGZ, and the total length in LEN. If a
- memory allocation error occurs, ENOMEM is returned, otherwise 0.
- The result can be destroyed using free. */
- extern error_t __argz_create_sep (__const char *__restrict __string,
- int __sep, char **__restrict __argz,
- size_t *__restrict __len) __THROW;
- extern error_t argz_create_sep (__const char *__restrict __string,
- int __sep, char **__restrict __argz,
- size_t *__restrict __len) __THROW;
- /* Returns the number of strings in ARGZ. */
- extern size_t __argz_count (__const char *__argz, size_t __len)
- __THROW __attribute_pure__;
- extern size_t argz_count (__const char *__argz, size_t __len)
- __THROW __attribute_pure__;
- /* Puts pointers to each string in ARGZ into ARGV, which must be large enough
- to hold them all. */
- extern void __argz_extract (__const char *__restrict __argz, size_t __len,
- char **__restrict __argv) __THROW;
- extern void argz_extract (__const char *__restrict __argz, size_t __len,
- char **__restrict __argv) __THROW;
- /* Make ' ' separated arg vector ARGZ printable by converting all the ' 's
- except the last into the character SEP. */
- extern void __argz_stringify (char *__argz, size_t __len, int __sep) __THROW;
- extern void argz_stringify (char *__argz, size_t __len, int __sep) __THROW;
- /* Append BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */
- extern error_t __argz_append (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __buf, size_t _buf_len)
- __THROW;
- extern error_t argz_append (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __buf, size_t __buf_len)
- __THROW;
- /* Append STR to the argz vector in ARGZ & ARGZ_LEN. */
- extern error_t __argz_add (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __str) __THROW;
- extern error_t argz_add (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __str) __THROW;
- /* Append SEP separated list in STRING to the argz vector in ARGZ &
- ARGZ_LEN. */
- extern error_t __argz_add_sep (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __string, int __delim)
- __THROW;
- extern error_t argz_add_sep (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __string, int __delim)
- __THROW;
- /* Delete ENTRY from ARGZ & ARGZ_LEN, if it appears there. */
- extern void __argz_delete (char **__restrict __argz,
- size_t *__restrict __argz_len,
- char *__restrict __entry) __THROW;
- extern void argz_delete (char **__restrict __argz,
- size_t *__restrict __argz_len,
- char *__restrict __entry) __THROW;
- /* Insert ENTRY into ARGZ & ARGZ_LEN before BEFORE, which should be an
- existing entry in ARGZ; if BEFORE is NULL, ENTRY is appended to the end.
- Since ARGZ's first entry is the same as ARGZ, argz_insert (ARGZ, ARGZ_LEN,
- ARGZ, ENTRY) will insert ENTRY at the beginning of ARGZ. If BEFORE is not
- in ARGZ, EINVAL is returned, else if memory can't be allocated for the new
- ARGZ, ENOMEM is returned, else 0. */
- extern error_t __argz_insert (char **__restrict __argz,
- size_t *__restrict __argz_len,
- char *__restrict __before,
- __const char *__restrict __entry) __THROW;
- extern error_t argz_insert (char **__restrict __argz,
- size_t *__restrict __argz_len,
- char *__restrict __before,
- __const char *__restrict __entry) __THROW;
- /* Replace any occurrences of the string STR in ARGZ with WITH, reallocating
- ARGZ as necessary. If REPLACE_COUNT is non-zero, *REPLACE_COUNT will be
- incremented by number of replacements performed. */
- extern error_t __argz_replace (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __str,
- __const char *__restrict __with,
- unsigned int *__restrict __replace_count);
- extern error_t argz_replace (char **__restrict __argz,
- size_t *__restrict __argz_len,
- __const char *__restrict __str,
- __const char *__restrict __with,
- unsigned int *__restrict __replace_count);
- /* Returns the next entry in ARGZ & ARGZ_LEN after ENTRY, or NULL if there
- are no more. If entry is NULL, then the first entry is returned. This
- behavior allows two convenient iteration styles:
- char *entry = 0;
- while ((entry = argz_next (argz, argz_len, entry)))
- ...;
- or
- char *entry;
- for (entry = argz; entry; entry = argz_next (argz, argz_len, entry))
- ...;
- */
- extern char *__argz_next (__const char *__restrict __argz, size_t __argz_len,
- __const char *__restrict __entry) __THROW;
- extern char *argz_next (__const char *__restrict __argz, size_t __argz_len,
- __const char *__restrict __entry) __THROW;
- #ifdef __USE_EXTERN_INLINES
- extern inline char *
- __NTH (__argz_next (__const char *__argz, size_t __argz_len,
- __const char *__entry))
- {
- if (__entry)
- {
- if (__entry < __argz + __argz_len)
- __entry = strchr (__entry, ' ') + 1;
- return __entry >= __argz + __argz_len ? (char *) NULL : (char *) __entry;
- }
- else
- return __argz_len > 0 ? (char *) __argz : 0;
- }
- extern inline char *
- __NTH (argz_next (__const char *__argz, size_t __argz_len,
- __const char *__entry))
- {
- return __argz_next (__argz, __argz_len, __entry);
- }
- #endif /* Use extern inlines. */
- __END_DECLS
- #endif /* argz.h */