gcc:

[pf3gnuchains/gcc-fork.git] / include / safe-ctype.h

diff --git a/include/safe-ctype.h b/include/safe-ctype.h
index ccacda5..0266bf1 100644 (file)
--- a/include/safe-ctype.h
+++ b/include/safe-ctype.h
@@ -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
 
 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:
 
 /* 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
 
 #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
 #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.  */
 
 
 /* Categories.  */
 


@@ -63,7 +76,9 @@ 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_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 @)  */

 };
 
 /* Character classification.  */
 };
 
 /* Character classification.  */


@@ -86,6 +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 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)
 #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)


@@ -96,5 +112,39 @@ extern const unsigned char  _sch_tolower[256];
 #define TOUPPER(c) _sch_toupper[(c) & 0xff]
 #define TOLOWER(c) _sch_tolower[(c) & 0xff]
 
 #define TOUPPER(c) _sch_toupper[(c) & 0xff]
 #define TOLOWER(c) _sch_tolower[(c) & 0xff]
 

-#endif /* no ctype.h */
+/* 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 /* SAFE_CTYPE_H */
 #endif /* SAFE_CTYPE_H */