diff options
Diffstat (limited to 'gcc/cpphash.h')
| -rw-r--r-- | gcc/cpphash.h | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/gcc/cpphash.h b/gcc/cpphash.h index 1f4f985..e27290a 100644 --- a/gcc/cpphash.h +++ b/gcc/cpphash.h @@ -135,39 +135,30 @@ struct cpp_buffer unsigned char sysp; }; -/* Character classes. +/* Character classes. Based on the more primitive macros in safe-ctype.h. If the definition of `numchar' looks odd to you, please look up the definition of a pp-number in the C standard [section 6.4.8 of C99]. In the unlikely event that characters other than \r and \n enter the set is_vspace, the macro handle_newline() in cpplex.c must be updated. */ -#define ISidnum 0x01 /* a-zA-Z0-9_ */ -#define ISidstart 0x02 /* _a-zA-Z */ -#define ISnumstart 0x04 /* 0-9 */ -#define IShspace 0x08 /* ' ' \t */ -#define ISvspace 0x10 /* \r \n */ -#define ISspace 0x20 /* ' ' \t \r \n \f \v \0 */ - #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) -#define is_idchar(x) ((_cpp_IStable[x] & ISidnum) || _dollar_ok(x)) -#define is_idstart(x) ((_cpp_IStable[x] & ISidstart) || _dollar_ok(x)) -#define is_numchar(x) (_cpp_IStable[x] & ISidnum) -#define is_numstart(x) (_cpp_IStable[x] & ISnumstart) -#define is_hspace(x) (_cpp_IStable[x] & IShspace) -#define is_vspace(x) (_cpp_IStable[x] & ISvspace) -#define is_nvspace(x) ((_cpp_IStable[x] & (ISspace | ISvspace)) == ISspace) -#define is_space(x) (_cpp_IStable[x] & ISspace) +#define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) +#define is_numchar(x) ISIDNUM(x) +#define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) +#define is_numstart(x) ISDIGIT(x) +#define is_hspace(x) ISBLANK(x) +#define is_vspace(x) IS_VSPACE(x) +#define is_nvspace(x) IS_NVSPACE(x) +#define is_space(x) IS_SPACE_OR_NUL(x) -/* These tables are constant if they can be initialized at compile time, +/* This table is constant if it can be initialized at compile time, which is the case if cpp was compiled with GCC >=2.7, or another compiler that supports C99. */ #if HAVE_DESIGNATED_INITIALIZERS -extern const unsigned char _cpp_IStable[UCHAR_MAX + 1]; extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; #else -extern unsigned char _cpp_IStable[UCHAR_MAX + 1]; extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; #endif |