(PTR_TO_OFFSET): New macro.

(PTR_TO_OFFSET): New macro.
(POS_AS_IN_BUFFER): New macro.
(SYNTAX_ENTRY_VIA_PROPERTY): Set to take `syntax-table' text
property into account when doing SYNTAX (c).
(re_compile_fastmap): disable fastmap if any of wordbound
notwordbound wordbeg wordend notsyntaxspec syntaxspec are seen.
(re_search_2): SETUP_SYNTAX_TABLE_FOR_OBJECT at the start.
(re_match_object): New variable.
(re_match_2): SETUP_SYNTAX_TABLE_FOR_OBJECT at the start.
(re_match_2_internal): For any of wordbound notwordbound wordbeg
wordend notsyntaxspec syntaxspec call UPDATE_SYNTAX_TABLE before
doing SYNTAX (c).

[emacs]: Include charset.h and category.h

[!emacs] (BASE_LEADING_CODE_P, WORD_BOUNDARY_P,	CHAR_HEAD_P,
SINGLE_BYTE_CHAR_P, SAME_CHARSET_P, MULTIBYTE_FORM_LENGTH,
STRING_CHAR_AND_LENGTH, GET_CHAR_AFTER_2, GET_CHAR_BEFORE_2):
New dummy macros.

(enum re_opcode_t): New member categoryspec and notcategoryspec.

(STORE_CHARACTER_AND_INCR, EXTRACT_CHARACTER,
CHARSET_LOOKUP_RANGE_TABLE_WITH_COUNT,
CHARSET_LOOKUP_RANGE_TABLE, CHARSET_BITMAP_SIZE,
CHARSET_RANGE_TABLE_EXISTS_P, CHARSET_RANGE_TABLE
CHARSET_PAST_RANGE_TABLE): New macros.

(TRANSLATE): Cast return value to unsigned char, not char.

(struct range_table_work_area): New structure.

(EXTEND_RANGE_TABLE_WORK_AREA, SET_RANGE_TABLE_WORK_AREA,
FREE_RANGE_TABLE_WORK_AREA, CLEAR_RANGE_TABLE_WORK_USED,
RANGE_TABLE_WORK_USED, RANGE_TABLE_WORK_ELT): New macros.

(FREE_STACK_RETURN): Call FREE_RANGE_TABLE_WORK_AREA.

(regex_compile): Declare `c' and `c1' as int to store multibyte characters.
Declare range_table_work and initialize	it.
Initialize bufp->multibyte to 0 if not emacs.
For case '[' and `default', code re-written to handle multibyte characters.
Add code for case 'c' and 'C' to handle category spec.

(re_compile_fastmap): New local variables k, simple_char_max,
and match_any_multibyte_characters.
Use macro CHARSET_BITMAP_SIZE.
Handle multibyte characters in cases charset, charset_not,
wordchar, notwordchar, anychar, syntaxspec, notsyntaxspec,
categoryspec, notcategoryspec.

(STOP_ADDR_VSTRING, POS_ADDR_VSTRING): New macros.

(re_search_2): Code re-written to handle multibyte characters.

(AT_WORD_BOUNDARY): Macro disabled.

(re_match_2_internal): New local variable multibyte.  `d' is
incremented while paying attention to multibyte characters if necessary.
For case charset, charsetnot, wordbound, notwordbound,
wordbeg, wordend, matchsyntax, and matchnotsyntax, code
re-written to handle multibyte characters.
Add code for case categoryspec and notcategoryspec.
Declare c, c1 as unsigned int, not unsigned char.