+++ /dev/null
-/* A GNU-like <string.h>.
-
- Copyright (C) 1995-1996, 2001-2009 Free Software Foundation, Inc.
-
- This program 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 3, or (at your option)
- any later version.
-
- This program 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 this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-#ifndef _GL_STRING_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-
-/* The include_next requires a split double-inclusion guard. */
-#@INCLUDE_NEXT@ @NEXT_STRING_H@
-
-#ifndef _GL_STRING_H
-#define _GL_STRING_H
-
-/* NetBSD 5.0 mis-defines NULL. */
-#include <stddef.h>
-
-#ifndef __attribute__
-/* This feature is available in gcc versions 2.5 and later. */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
-# define __attribute__(Spec) /* empty */
-# endif
-/* The attribute __pure__ was added in gcc 2.96. */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
-# define __pure__ /* empty */
-# endif
-#endif
-
-
-/* The definition of GL_LINK_WARNING is copied here. */
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Return the first instance of C within N bytes of S, or NULL. */
-#if @GNULIB_MEMCHR@
-# if @REPLACE_MEMCHR@
-# define memchr rpl_memchr
-extern void *memchr (void const *__s, int __c, size_t __n)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memchr
-# define memchr(s,c,n) \
- (GL_LINK_WARNING ("memchr has platform-specific bugs - " \
- "use gnulib module memchr for portability" ), \
- memchr (s, c, n))
-#endif
-
-/* Return the first occurrence of NEEDLE in HAYSTACK. */
-#if @GNULIB_MEMMEM@
-# if @REPLACE_MEMMEM@
-# define memmem rpl_memmem
-# endif
-# if ! @HAVE_DECL_MEMMEM@ || @REPLACE_MEMMEM@
-extern void *memmem (void const *__haystack, size_t __haystack_len,
- void const *__needle, size_t __needle_len)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memmem
-# define memmem(a,al,b,bl) \
- (GL_LINK_WARNING ("memmem is unportable and often quadratic - " \
- "use gnulib module memmem-simple for portability, " \
- "and module memmem for speed" ), \
- memmem (a, al, b, bl))
-#endif
-
-/* Copy N bytes of SRC to DEST, return pointer to bytes after the
- last written byte. */
-#if @GNULIB_MEMPCPY@
-# if ! @HAVE_MEMPCPY@
-extern void *mempcpy (void *restrict __dest, void const *restrict __src,
- size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef mempcpy
-# define mempcpy(a,b,n) \
- (GL_LINK_WARNING ("mempcpy is unportable - " \
- "use gnulib module mempcpy for portability"), \
- mempcpy (a, b, n))
-#endif
-
-/* Search backwards through a block for a byte (specified as an int). */
-#if @GNULIB_MEMRCHR@
-# if ! @HAVE_DECL_MEMRCHR@
-extern void *memrchr (void const *, int, size_t)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memrchr
-# define memrchr(a,b,c) \
- (GL_LINK_WARNING ("memrchr is unportable - " \
- "use gnulib module memrchr for portability"), \
- memrchr (a, b, c))
-#endif
-
-/* Find the first occurrence of C in S. More efficient than
- memchr(S,C,N), at the expense of undefined behavior if C does not
- occur within N bytes. */
-#if @GNULIB_RAWMEMCHR@
-# if ! @HAVE_RAWMEMCHR@
-extern void *rawmemchr (void const *__s, int __c_in)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef rawmemchr
-# define rawmemchr(a,b) \
- (GL_LINK_WARNING ("rawmemchr is unportable - " \
- "use gnulib module rawmemchr for portability"), \
- rawmemchr (a, b))
-#endif
-
-/* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
-#if @GNULIB_STPCPY@
-# if ! @HAVE_STPCPY@
-extern char *stpcpy (char *restrict __dst, char const *restrict __src);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef stpcpy
-# define stpcpy(a,b) \
- (GL_LINK_WARNING ("stpcpy is unportable - " \
- "use gnulib module stpcpy for portability"), \
- stpcpy (a, b))
-#endif
-
-/* Copy no more than N bytes of SRC to DST, returning a pointer past the
- last non-NUL byte written into DST. */
-#if @GNULIB_STPNCPY@
-# if ! @HAVE_STPNCPY@
-# define stpncpy gnu_stpncpy
-extern char *stpncpy (char *restrict __dst, char const *restrict __src,
- size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef stpncpy
-# define stpncpy(a,b,n) \
- (GL_LINK_WARNING ("stpncpy is unportable - " \
- "use gnulib module stpncpy for portability"), \
- stpncpy (a, b, n))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strchr() does not work with multibyte strings if the locale encoding is
- GB18030 and the character to be searched is a digit. */
-# undef strchr
-# define strchr(s,c) \
- (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
- "in some multibyte locales - " \
- "use mbschr if you care about internationalization"), \
- strchr (s, c))
-#endif
-
-/* Find the first occurrence of C in S or the final NUL byte. */
-#if @GNULIB_STRCHRNUL@
-# if ! @HAVE_STRCHRNUL@
-extern char *strchrnul (char const *__s, int __c_in)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strchrnul
-# define strchrnul(a,b) \
- (GL_LINK_WARNING ("strchrnul is unportable - " \
- "use gnulib module strchrnul for portability"), \
- strchrnul (a, b))
-#endif
-
-/* Duplicate S, returning an identical malloc'd string. */
-#if @GNULIB_STRDUP@
-# if @REPLACE_STRDUP@
-# undef strdup
-# define strdup rpl_strdup
-# endif
-# if !(@HAVE_DECL_STRDUP@ || defined strdup) || @REPLACE_STRDUP@
-extern char *strdup (char const *__s);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strdup
-# define strdup(a) \
- (GL_LINK_WARNING ("strdup is unportable - " \
- "use gnulib module strdup for portability"), \
- strdup (a))
-#endif
-
-/* Return a newly allocated copy of at most N bytes of STRING. */
-#if @GNULIB_STRNDUP@
-# if ! @HAVE_STRNDUP@
-# undef strndup
-# define strndup rpl_strndup
-# endif
-# if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
-extern char *strndup (char const *__string, size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strndup
-# define strndup(a,n) \
- (GL_LINK_WARNING ("strndup is unportable - " \
- "use gnulib module strndup for portability"), \
- strndup (a, n))
-#endif
-
-/* Find the length (number of bytes) of STRING, but scan at most
- MAXLEN bytes. If no '\0' terminator is found in that many bytes,
- return MAXLEN. */
-#if @GNULIB_STRNLEN@
-# if ! @HAVE_DECL_STRNLEN@
-extern size_t strnlen (char const *__string, size_t __maxlen)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strnlen
-# define strnlen(a,n) \
- (GL_LINK_WARNING ("strnlen is unportable - " \
- "use gnulib module strnlen for portability"), \
- strnlen (a, n))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strcspn() assumes the second argument is a list of single-byte characters.
- Even in this simple case, it does not work with multibyte strings if the
- locale encoding is GB18030 and one of the characters to be searched is a
- digit. */
-# undef strcspn
-# define strcspn(s,a) \
- (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
- "in multibyte locales - " \
- "use mbscspn if you care about internationalization"), \
- strcspn (s, a))
-#endif
-
-/* Find the first occurrence in S of any character in ACCEPT. */
-#if @GNULIB_STRPBRK@
-# if ! @HAVE_STRPBRK@
-extern char *strpbrk (char const *__s, char const *__accept)
- __attribute__ ((__pure__));
-# endif
-# if defined GNULIB_POSIXCHECK
-/* strpbrk() assumes the second argument is a list of single-byte characters.
- Even in this simple case, it does not work with multibyte strings if the
- locale encoding is GB18030 and one of the characters to be searched is a
- digit. */
-# undef strpbrk
-# define strpbrk(s,a) \
- (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
- "in multibyte locales - " \
- "use mbspbrk if you care about internationalization"), \
- strpbrk (s, a))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strpbrk
-# define strpbrk(s,a) \
- (GL_LINK_WARNING ("strpbrk is unportable - " \
- "use gnulib module strpbrk for portability"), \
- strpbrk (s, a))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strspn() assumes the second argument is a list of single-byte characters.
- Even in this simple case, it cannot work with multibyte strings. */
-# undef strspn
-# define strspn(s,a) \
- (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
- "in multibyte locales - " \
- "use mbsspn if you care about internationalization"), \
- strspn (s, a))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strrchr() does not work with multibyte strings if the locale encoding is
- GB18030 and the character to be searched is a digit. */
-# undef strrchr
-# define strrchr(s,c) \
- (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
- "in some multibyte locales - " \
- "use mbsrchr if you care about internationalization"), \
- strrchr (s, c))
-#endif
-
-/* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
- If one is found, overwrite it with a NUL, and advance *STRINGP
- to point to the next char after it. Otherwise, set *STRINGP to NULL.
- If *STRINGP was already NULL, nothing happens.
- Return the old value of *STRINGP.
-
- This is a variant of strtok() that is multithread-safe and supports
- empty fields.
-
- Caveat: It modifies the original string.
- Caveat: These functions cannot be used on constant strings.
- Caveat: The identity of the delimiting character is lost.
- Caveat: It doesn't work with multibyte strings unless all of the delimiter
- characters are ASCII characters < 0x30.
-
- See also strtok_r(). */
-#if @GNULIB_STRSEP@
-# if ! @HAVE_STRSEP@
-extern char *strsep (char **restrict __stringp, char const *restrict __delim);
-# endif
-# if defined GNULIB_POSIXCHECK
-# undef strsep
-# define strsep(s,d) \
- (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \
- "in multibyte locales - " \
- "use mbssep if you care about internationalization"), \
- strsep (s, d))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strsep
-# define strsep(s,d) \
- (GL_LINK_WARNING ("strsep is unportable - " \
- "use gnulib module strsep for portability"), \
- strsep (s, d))
-#endif
-
-#if @GNULIB_STRSTR@
-# if @REPLACE_STRSTR@
-# define strstr rpl_strstr
-char *strstr (const char *haystack, const char *needle)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-/* strstr() does not work with multibyte strings if the locale encoding is
- different from UTF-8:
- POSIX says that it operates on "strings", and "string" in POSIX is defined
- as a sequence of bytes, not of characters. */
-# undef strstr
-# define strstr(a,b) \
- (GL_LINK_WARNING ("strstr is quadratic on many systems, and cannot " \
- "work correctly on character strings in most " \
- "multibyte locales - " \
- "use mbsstr if you care about internationalization, " \
- "or use strstr if you care about speed"), \
- strstr (a, b))
-#endif
-
-/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
- comparison. */
-#if @GNULIB_STRCASESTR@
-# if @REPLACE_STRCASESTR@
-# define strcasestr rpl_strcasestr
-# endif
-# if ! @HAVE_STRCASESTR@ || @REPLACE_STRCASESTR@
-extern char *strcasestr (const char *haystack, const char *needle)
- __attribute__ ((__pure__));
-# endif
-#elif defined GNULIB_POSIXCHECK
-/* strcasestr() does not work with multibyte strings:
- It is a glibc extension, and glibc implements it only for unibyte
- locales. */
-# undef strcasestr
-# define strcasestr(a,b) \
- (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \
- "in multibyte locales - " \
- "use mbscasestr if you care about " \
- "internationalization, or use c-strcasestr if you want " \
- "a locale independent function"), \
- strcasestr (a, b))
-#endif
-
-/* Parse S into tokens separated by characters in DELIM.
- If S is NULL, the saved pointer in SAVE_PTR is used as
- the next starting point. For example:
- char s[] = "-abc-=-def";
- char *sp;
- x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
- x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
- x = strtok_r(NULL, "=", &sp); // x = NULL
- // s = "abc\0-def\0"
-
- This is a variant of strtok() that is multithread-safe.
-
- For the POSIX documentation for this function, see:
- http://www.opengroup.org/susv3xsh/strtok.html
-
- Caveat: It modifies the original string.
- Caveat: These functions cannot be used on constant strings.
- Caveat: The identity of the delimiting character is lost.
- Caveat: It doesn't work with multibyte strings unless all of the delimiter
- characters are ASCII characters < 0x30.
-
- See also strsep(). */
-#if @GNULIB_STRTOK_R@
-# if ! @HAVE_DECL_STRTOK_R@
-extern char *strtok_r (char *restrict s, char const *restrict delim,
- char **restrict save_ptr);
-# endif
-# if defined GNULIB_POSIXCHECK
-# undef strtok_r
-# define strtok_r(s,d,p) \
- (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \
- "in multibyte locales - " \
- "use mbstok_r if you care about internationalization"), \
- strtok_r (s, d, p))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strtok_r
-# define strtok_r(s,d,p) \
- (GL_LINK_WARNING ("strtok_r is unportable - " \
- "use gnulib module strtok_r for portability"), \
- strtok_r (s, d, p))
-#endif
-
-
-/* The following functions are not specified by POSIX. They are gnulib
- extensions. */
-
-#if @GNULIB_MBSLEN@
-/* Return the number of multibyte characters in the character string STRING.
- This considers multibyte characters, unlike strlen, which counts bytes. */
-extern size_t mbslen (const char *string);
-#endif
-
-#if @GNULIB_MBSNLEN@
-/* Return the number of multibyte characters in the character string starting
- at STRING and ending at STRING + LEN. */
-extern size_t mbsnlen (const char *string, size_t len);
-#endif
-
-#if @GNULIB_MBSCHR@
-/* Locate the first single-byte character C in the character string STRING,
- and return a pointer to it. Return NULL if C is not found in STRING.
- Unlike strchr(), this function works correctly in multibyte locales with
- encodings such as GB18030. */
-# define mbschr rpl_mbschr /* avoid collision with HP-UX function */
-extern char * mbschr (const char *string, int c);
-#endif
-
-#if @GNULIB_MBSRCHR@
-/* Locate the last single-byte character C in the character string STRING,
- and return a pointer to it. Return NULL if C is not found in STRING.
- Unlike strrchr(), this function works correctly in multibyte locales with
- encodings such as GB18030. */
-# define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */
-extern char * mbsrchr (const char *string, int c);
-#endif
-
-#if @GNULIB_MBSSTR@
-/* Find the first occurrence of the character string NEEDLE in the character
- string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK.
- Unlike strstr(), this function works correctly in multibyte locales with
- encodings different from UTF-8. */
-extern char * mbsstr (const char *haystack, const char *needle);
-#endif
-
-#if @GNULIB_MBSCASECMP@
-/* Compare the character strings S1 and S2, ignoring case, returning less than,
- equal to or greater than zero if S1 is lexicographically less than, equal to
- or greater than S2.
- Note: This function may, in multibyte locales, return 0 for strings of
- different lengths!
- Unlike strcasecmp(), this function works correctly in multibyte locales. */
-extern int mbscasecmp (const char *s1, const char *s2);
-#endif
-
-#if @GNULIB_MBSNCASECMP@
-/* Compare the initial segment of the character string S1 consisting of at most
- N characters with the initial segment of the character string S2 consisting
- of at most N characters, ignoring case, returning less than, equal to or
- greater than zero if the initial segment of S1 is lexicographically less
- than, equal to or greater than the initial segment of S2.
- Note: This function may, in multibyte locales, return 0 for initial segments
- of different lengths!
- Unlike strncasecmp(), this function works correctly in multibyte locales.
- But beware that N is not a byte count but a character count! */
-extern int mbsncasecmp (const char *s1, const char *s2, size_t n);
-#endif
-
-#if @GNULIB_MBSPCASECMP@
-/* Compare the initial segment of the character string STRING consisting of
- at most mbslen (PREFIX) characters with the character string PREFIX,
- ignoring case, returning less than, equal to or greater than zero if this
- initial segment is lexicographically less than, equal to or greater than
- PREFIX.
- Note: This function may, in multibyte locales, return 0 if STRING is of
- smaller length than PREFIX!
- Unlike strncasecmp(), this function works correctly in multibyte
- locales. */
-extern char * mbspcasecmp (const char *string, const char *prefix);
-#endif
-
-#if @GNULIB_MBSCASESTR@
-/* Find the first occurrence of the character string NEEDLE in the character
- string HAYSTACK, using case-insensitive comparison.
- Note: This function may, in multibyte locales, return success even if
- strlen (haystack) < strlen (needle) !
- Unlike strcasestr(), this function works correctly in multibyte locales. */
-extern char * mbscasestr (const char *haystack, const char *needle);
-#endif
-
-#if @GNULIB_MBSCSPN@
-/* Find the first occurrence in the character string STRING of any character
- in the character string ACCEPT. Return the number of bytes from the
- beginning of the string to this occurrence, or to the end of the string
- if none exists.
- Unlike strcspn(), this function works correctly in multibyte locales. */
-extern size_t mbscspn (const char *string, const char *accept);
-#endif
-
-#if @GNULIB_MBSPBRK@
-/* Find the first occurrence in the character string STRING of any character
- in the character string ACCEPT. Return the pointer to it, or NULL if none
- exists.
- Unlike strpbrk(), this function works correctly in multibyte locales. */
-# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
-extern char * mbspbrk (const char *string, const char *accept);
-#endif
-
-#if @GNULIB_MBSSPN@
-/* Find the first occurrence in the character string STRING of any character
- not in the character string REJECT. Return the number of bytes from the
- beginning of the string to this occurrence, or to the end of the string
- if none exists.
- Unlike strspn(), this function works correctly in multibyte locales. */
-extern size_t mbsspn (const char *string, const char *reject);
-#endif
-
-#if @GNULIB_MBSSEP@
-/* Search the next delimiter (multibyte character listed in the character
- string DELIM) starting at the character string *STRINGP.
- If one is found, overwrite it with a NUL, and advance *STRINGP to point
- to the next multibyte character after it. Otherwise, set *STRINGP to NULL.
- If *STRINGP was already NULL, nothing happens.
- Return the old value of *STRINGP.
-
- This is a variant of mbstok_r() that supports empty fields.
-
- Caveat: It modifies the original string.
- Caveat: These functions cannot be used on constant strings.
- Caveat: The identity of the delimiting character is lost.
-
- See also mbstok_r(). */
-extern char * mbssep (char **stringp, const char *delim);
-#endif
-
-#if @GNULIB_MBSTOK_R@
-/* Parse the character string STRING into tokens separated by characters in
- the character string DELIM.
- If STRING is NULL, the saved pointer in SAVE_PTR is used as
- the next starting point. For example:
- char s[] = "-abc-=-def";
- char *sp;
- x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def"
- x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL
- x = mbstok_r(NULL, "=", &sp); // x = NULL
- // s = "abc\0-def\0"
-
- Caveat: It modifies the original string.
- Caveat: These functions cannot be used on constant strings.
- Caveat: The identity of the delimiting character is lost.
-
- See also mbssep(). */
-extern char * mbstok_r (char *string, const char *delim, char **save_ptr);
-#endif
-
-/* Map any int, typically from errno, into an error message. */
-#if @GNULIB_STRERROR@
-# if @REPLACE_STRERROR@
-# undef strerror
-# define strerror rpl_strerror
-extern char *strerror (int);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strerror
-# define strerror(e) \
- (GL_LINK_WARNING ("strerror is unportable - " \
- "use gnulib module strerror to guarantee non-NULL result"), \
- strerror (e))
-#endif
-
-#if @GNULIB_STRSIGNAL@
-# if @REPLACE_STRSIGNAL@
-# define strsignal rpl_strsignal
-# endif
-# if ! @HAVE_DECL_STRSIGNAL@ || @REPLACE_STRSIGNAL@
-extern char *strsignal (int __sig);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strsignal
-# define strsignal(a) \
- (GL_LINK_WARNING ("strsignal is unportable - " \
- "use gnulib module strsignal for portability"), \
- strsignal (a))
-#endif
-
-#if @GNULIB_STRVERSCMP@
-# if !@HAVE_STRVERSCMP@
-extern int strverscmp (const char *, const char *);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strverscmp
-# define strverscmp(a, b) \
- (GL_LINK_WARNING ("strverscmp is unportable - " \
- "use gnulib module strverscmp for portability"), \
- strverscmp (a, b))
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GL_STRING_H */
-#endif /* _GL_STRING_H */
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