X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fsafe-ctype.h;h=b6d585cded5ec71689f3469d822548e152134f9f;hb=refs%2Fheads%2Fsandbox%2Fvbarinov%2Fupstream233;hp=977653c75a2fb40ba43433c3075b7830ad77d573;hpb=39cd2525463aab63af6a9b111a01fb2b37e1733a;p=external%2Fbinutils.git

diff --git a/include/safe-ctype.h b/include/safe-ctype.h
index 977653c..b6d585c 100644
--- a/include/safe-ctype.h
+++ b/include/safe-ctype.h
@@ -1,6 +1,6 @@
 /* <ctype.h> replacement macros.
 
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000-2019 Free Software Foundation, Inc.
    Contributed by Zack Weinberg <zackw@stanford.edu>.
 
 This file is part of the libiberty library.
@@ -16,8 +16,8 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with libiberty; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 /* This is a compatible replacement of the standard C library's <ctype.h>
    with the following properties:
@@ -35,9 +35,22 @@ Boston, MA 02111-1307, USA.  */
 #ifndef SAFE_CTYPE_H
 #define SAFE_CTYPE_H
 
-#ifdef isalpha
- #error "safe-ctype.h and ctype.h may not be used simultaneously"
+/* Determine host character set.  */
+#define HOST_CHARSET_UNKNOWN 0
+#define HOST_CHARSET_ASCII   1
+#define HOST_CHARSET_EBCDIC  2
+
+#if  '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
+   && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
+#  define HOST_CHARSET HOST_CHARSET_ASCII
 #else
+# if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
+   && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
+#  define HOST_CHARSET HOST_CHARSET_EBCDIC
+# else
+#  define HOST_CHARSET HOST_CHARSET_UNKNOWN
+# endif
+#endif
 
 /* Categories.  */
 
@@ -63,18 +76,15 @@ enum {
   _sch_isalnum  = _sch_isalpha|_sch_isdigit,	/* A-Za-z0-9 */
   _sch_isidnum  = _sch_isidst|_sch_isdigit,	/* A-Za-z0-9_ */
   _sch_isgraph  = _sch_isalnum|_sch_ispunct,	/* isprint and not space */
-  _sch_iscppsp  = _sch_isvsp|_sch_isnvsp	/* isspace + \0 */
+  _sch_iscppsp  = _sch_isvsp|_sch_isnvsp,	/* isspace + \0 */
+  _sch_isbasic  = _sch_isprint|_sch_iscppsp     /* basic charset of ISO C
+						   (plus ` and @)  */
 };
 
-/* This code fundamentally assumes that a byte is 8 bits.  Test this
-   at compile time.  */
-
-extern int a_byte_isnt_eight_bits[(unsigned char)256 == 0 ? 1 : -1];
-
 /* Character classification.  */
 extern const unsigned short _sch_istable[256];
 
-#define _sch_test(c, bit) (_sch_istable[(int)(unsigned char)(c)] & (bit))
+#define _sch_test(c, bit) (_sch_istable[(c) & 0xff] & (unsigned short)(bit))
 
 #define ISALPHA(c)  _sch_test(c, _sch_isalpha)
 #define ISALNUM(c)  _sch_test(c, _sch_isalnum)
@@ -91,6 +101,7 @@ extern const unsigned short _sch_istable[256];
 
 #define ISIDNUM(c)	_sch_test(c, _sch_isidnum)
 #define ISIDST(c)	_sch_test(c, _sch_isidst)
+#define IS_ISOBASIC(c)	_sch_test(c, _sch_isbasic)
 #define IS_VSPACE(c)	_sch_test(c, _sch_isvsp)
 #define IS_NVSPACE(c)	_sch_test(c, _sch_isnvsp)
 #define IS_SPACE_OR_NUL(c)	_sch_test(c, _sch_iscppsp)
@@ -98,8 +109,42 @@ extern const unsigned short _sch_istable[256];
 /* Character transformation.  */
 extern const unsigned char  _sch_toupper[256];
 extern const unsigned char  _sch_tolower[256];
-#define TOUPPER(c) _sch_toupper[(int)(unsigned char)(c)]
-#define TOLOWER(c) _sch_tolower[(int)(unsigned char)(c)]
+#define TOUPPER(c) _sch_toupper[(c) & 0xff]
+#define TOLOWER(c) _sch_tolower[(c) & 0xff]
+
+/* Prevent the users of safe-ctype.h from accidently using the routines
+   from ctype.h.  Initially, the approach was to produce an error when
+   detecting that ctype.h has been included.  But this was causing
+   trouble as ctype.h might get indirectly included as a result of
+   including another system header (for instance gnulib's stdint.h).
+   So we include ctype.h here and then immediately redefine its macros.  */
+
+#include <ctype.h>
+#undef isalpha
+#define isalpha(c) do_not_use_isalpha_with_safe_ctype
+#undef isalnum
+#define isalnum(c) do_not_use_isalnum_with_safe_ctype
+#undef iscntrl
+#define iscntrl(c) do_not_use_iscntrl_with_safe_ctype
+#undef isdigit
+#define isdigit(c) do_not_use_isdigit_with_safe_ctype
+#undef isgraph
+#define isgraph(c) do_not_use_isgraph_with_safe_ctype
+#undef islower
+#define islower(c) do_not_use_islower_with_safe_ctype
+#undef isprint
+#define isprint(c) do_not_use_isprint_with_safe_ctype
+#undef ispunct
+#define ispunct(c) do_not_use_ispunct_with_safe_ctype
+#undef isspace
+#define isspace(c) do_not_use_isspace_with_safe_ctype
+#undef isupper
+#define isupper(c) do_not_use_isupper_with_safe_ctype
+#undef isxdigit
+#define isxdigit(c) do_not_use_isxdigit_with_safe_ctype
+#undef toupper
+#define toupper(c) do_not_use_toupper_with_safe_ctype
+#undef tolower
+#define tolower(c) do_not_use_tolower_with_safe_ctype
 
-#endif /* no ctype.h */
 #endif /* SAFE_CTYPE_H */