mirror of
git://git.sv.gnu.org/coreutils
synced 2026-06-06 23:59:19 -04:00
Jim Meyering
159 lines
4.1 KiB
C
159 lines
4.1 KiB
C
/* WARNING -- this file is temporary. It is shared between the
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sh-utils, fileutils, and textutils packages. Once I find a little
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more time, I'll merge the remaining things in system.h and everything
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in this file will go back there. */
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#ifndef RETSIGTYPE
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# define RETSIGTYPE void
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#endif
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#ifndef __GNUC__
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# ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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# pragma alloca
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# else
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# ifdef _WIN32
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# include <malloc.h>
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# include <io.h>
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# else
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# ifndef alloca
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char *alloca ();
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# endif
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# endif
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# endif
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# endif
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#endif
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#include <ctype.h>
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/* Jim Meyering writes:
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"... Some ctype macros are valid only for character codes that
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isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
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using /bin/cc or gcc but without giving an ansi option). So, all
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ctype uses should be through macros like ISPRINT... If
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STDC_HEADERS is defined, then autoconf has verified that the ctype
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macros don't need to be guarded with references to isascii. ...
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Defining isascii to 1 should let any compiler worth its salt
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eliminate the && through constant folding."
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Bruno Haible adds:
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"... Furthermore, isupper(c) etc. have an undefined result if c is
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outside the range -1 <= c <= 255. One is tempted to write isupper(c)
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with c being of type `char', but this is wrong if c is an 8-bit
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character >= 128 which gets sign-extended to a negative value.
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The macro ISUPPER protects against this as well." */
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#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
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# define IN_CTYPE_DOMAIN(c) 1
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#else
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# define IN_CTYPE_DOMAIN(c) isascii(c)
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#endif
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#ifdef isblank
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# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c))
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#else
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# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
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#endif
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#ifdef isgraph
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# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c))
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#else
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# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c))
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#endif
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#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
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#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
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#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
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#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
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#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
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#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c))
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#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
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#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
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#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
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#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
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/* ISDIGIT differs from ISDIGIT_LOCALE, as follows:
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- Its arg may be any int or unsigned int; it need not be an unsigned char.
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- It's guaranteed to evaluate its argument exactly once.
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- It's typically faster.
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Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
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only '0' through '9' are digits. Prefer ISDIGIT to ISDIGIT_LOCALE unless
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it's important to use the locale's definition of `digit' even when the
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host does not conform to Posix. */
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#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
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#ifndef PARAMS
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# if PROTOTYPES
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# define PARAMS(Args) Args
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# else
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# define PARAMS(Args) ()
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# endif
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#endif
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/* Take care of NLS matters. */
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#if HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#if !HAVE_SETLOCALE
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# define setlocale(Category, Locale) /* empty */
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#endif
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#if ENABLE_NLS
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# include <libintl.h>
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# define _(Text) gettext (Text)
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#else
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# undef bindtextdomain
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# define bindtextdomain(Domain, Directory) /* empty */
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# undef textdomain
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# define textdomain(Domain) /* empty */
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# define _(Text) Text
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#endif
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#define N_(Text) Text
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#define STREQ(a,b) (strcmp((a), (b)) == 0)
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#ifndef HAVE_DECL_FREE
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void free ();
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#endif
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#ifndef HAVE_DECL_MALLOC
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char *malloc ();
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#endif
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#ifndef HAVE_DECL_MEMCHR
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char *memchr ();
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#endif
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#ifndef HAVE_DECL_REALLOC
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char *realloc ();
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#endif
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#ifndef HAVE_DECL_STPCPY
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# ifndef stpcpy
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char *stpcpy ();
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# endif
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#endif
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#ifndef HAVE_DECL_STRSTR
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char *strstr ();
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#endif
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#ifndef HAVE_DECL_GETENV
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char *getenv ();
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#endif
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#ifndef HAVE_DECL_LSEEK
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off_t lseek ();
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#endif
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#include "xalloc.h"
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#ifndef HAVE_MEMPCPY
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/* Be CAREFUL that there are no side effects in N. */
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# define mempcpy(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N)))
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#endif
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