diff options
Diffstat (limited to 'unicode_constants.h')
| -rw-r--r-- | unicode_constants.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/unicode_constants.h b/unicode_constants.h index 02d38113ae..1c0e62e356 100644 --- a/unicode_constants.h +++ b/unicode_constants.h @@ -21,6 +21,30 @@ * "_TAIL" if instead it represents all but the first byte. This, and * with no additional suffix are both string constants */ +/* +=head1 Unicode Support + +=for apidoc AmU|placeholder|BOM_UTF8 + +This is a macro that evaluates to a string constant of the UTF-8 bytes that +define the Unicode BYTE ORDER MARK (U+FEFF) for the platform that perl +is compiled on. This allows code to use a mnemonic for this character that +works on both ASCII and EBCDIC platforms. +S<C<sizeof(BOM_UTF8) - 1>> can be used to get its length in +bytes. + +=for apidoc AmU|placeholder|REPLACEMENT_CHARACTER_UTF8 + +This is a macro that evaluates to a string constant of the UTF-8 bytes that +define the Unicode REPLACEMENT CHARACTER (U+FFFD) for the platform that perl +is compiled on. This allows code to use a mnemonic for this character that +works on both ASCII and EBCDIC platforms. +S<C<sizeof(REPLACEMENT_CHARACTER_UTF8) - 1>> can be used to get its length in +bytes. + +=cut +*/ + #define UNICODE_MAJOR_VERSION 9 #define UNICODE_DOT_VERSION 0 #define UNICODE_DOT_DOT_VERSION 0 @@ -45,6 +69,10 @@ # define BOM_UTF8_FIRST_BYTE 0xEF /* U+FEFF */ # define BOM_UTF8_TAIL "\xBB\xBF" /* U+FEFF */ +# define BOM_UTF8 "\xEF\xBB\xBF" /* U+FEFF */ + +# define REPLACEMENT_CHARACTER_UTF8 "\xEF\xBF\xBD" /* U+FFFD */ + # define NBSP_NATIVE 0xA0 /* U+00A0 */ # define NBSP_UTF8 "\xC2\xA0" /* U+00A0 */ @@ -84,6 +112,10 @@ # define BOM_UTF8_FIRST_BYTE 0xDD /* U+FEFF */ # define BOM_UTF8_TAIL "\x73\x66\x73" /* U+FEFF */ +# define BOM_UTF8 "\xDD\x73\x66\x73" /* U+FEFF */ + +# define REPLACEMENT_CHARACTER_UTF8 "\xDD\x73\x73\x71" /* U+FFFD */ + # define NBSP_NATIVE 0x41 /* U+00A0 */ # define NBSP_UTF8 "\x80\x41" /* U+00A0 */ @@ -123,6 +155,10 @@ # define BOM_UTF8_FIRST_BYTE 0xDD /* U+FEFF */ # define BOM_UTF8_TAIL "\x72\x65\x72" /* U+FEFF */ +# define BOM_UTF8 "\xDD\x72\x65\x72" /* U+FEFF */ + +# define REPLACEMENT_CHARACTER_UTF8 "\xDD\x72\x72\x70" /* U+FFFD */ + # define NBSP_NATIVE 0x41 /* U+00A0 */ # define NBSP_UTF8 "\x78\x41" /* U+00A0 */ |