/* Declarations having to do with GNU Emacs syntax tables.
- Copyright (C) 1985, 1993, 1994, 1997, 1998, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+
+Copyright (C) 1985, 1993-1994, 1997-1998, 2001-2013 Free Software
+Foundation, Inc.
This file is part of GNU Emacs.
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-extern Lisp_Object Qsyntax_table_p;
-extern void update_syntax_table P_ ((int, int, int, Lisp_Object));
+extern void update_syntax_table (ptrdiff_t, EMACS_INT, int, Lisp_Object);
/* The standard syntax table is stored where it will automatically
be used in all new buffers. */
-#define Vstandard_syntax_table buffer_defaults.syntax_table
+#define Vstandard_syntax_table BVAR (&buffer_defaults, syntax_table)
/* A syntax table is a chartable whose elements are cons cells
(CODE+FLAGS . MATCHING-CHAR). MATCHING-CHAR can be nil if the char
# define CURRENT_SYNTAX_TABLE gl_state.current_syntax_table
#else
# define SYNTAX_ENTRY SYNTAX_ENTRY_INT
-# define CURRENT_SYNTAX_TABLE current_buffer->syntax_table
+# define CURRENT_SYNTAX_TABLE BVAR (current_buffer, syntax_table)
#endif
#define SYNTAX_ENTRY_INT(c) CHAR_TABLE_REF (CURRENT_SYNTAX_TABLE, (c))
: Qnil))
#endif
-/* Then there are seven single-bit flags that have the following meanings:
- 1. This character is the first of a two-character comment-start sequence.
- 2. This character is the second of a two-character comment-start sequence.
- 3. This character is the first of a two-character comment-end sequence.
- 4. This character is the second of a two-character comment-end sequence.
- 5. This character is a prefix, for backward-prefix-chars.
- 6. see below
- 7. This character is part of a nestable comment sequence.
- Note that any two-character sequence whose first character has flag 1
- and whose second character has flag 2 will be interpreted as a comment start.
-
- bit 6 is used to discriminate between two different comment styles.
- Languages such as C++ allow two orthogonal syntax start/end pairs
- and bit 6 is used to determine whether a comment-end or Scommentend
- ends style a or b. Comment start sequences can start style a or b.
- Style a is always the default.
- */
-
-/* These macros extract a particular flag for a given character. */
-
-#define SYNTAX_COMSTART_FIRST(c) ((SYNTAX_WITH_FLAGS (c) >> 16) & 1)
-
-#define SYNTAX_COMSTART_SECOND(c) ((SYNTAX_WITH_FLAGS (c) >> 17) & 1)
-
-#define SYNTAX_COMEND_FIRST(c) ((SYNTAX_WITH_FLAGS (c) >> 18) & 1)
-
-#define SYNTAX_COMEND_SECOND(c) ((SYNTAX_WITH_FLAGS (c) >> 19) & 1)
-
-#define SYNTAX_PREFIX(c) ((SYNTAX_WITH_FLAGS (c) >> 20) & 1)
-
-#define SYNTAX_COMMENT_STYLE(c) ((SYNTAX_WITH_FLAGS (c) >> 21) & 1)
-
-#define SYNTAX_COMMENT_NESTED(c) ((SYNTAX_WITH_FLAGS (c) >> 22) & 1)
-
-/* These macros extract specific flags from an integer
- that holds the syntax code and the flags. */
-
-#define SYNTAX_FLAGS_COMSTART_FIRST(flags) (((flags) >> 16) & 1)
-
-#define SYNTAX_FLAGS_COMSTART_SECOND(flags) (((flags) >> 17) & 1)
-#define SYNTAX_FLAGS_COMEND_FIRST(flags) (((flags) >> 18) & 1)
-
-#define SYNTAX_FLAGS_COMEND_SECOND(flags) (((flags) >> 19) & 1)
-
-#define SYNTAX_FLAGS_PREFIX(flags) (((flags) >> 20) & 1)
-
-#define SYNTAX_FLAGS_COMMENT_STYLE(flags) (((flags) >> 21) & 1)
-
-#define SYNTAX_FLAGS_COMMENT_NESTED(flags) (((flags) >> 22) & 1)
+/* Whether the syntax of the character C has the prefix flag set. */
+extern int syntax_prefix_flag_p (int c);
/* This array, indexed by a character, contains the syntax code which that
character signifies (as a char). For example,
1) \
: 0))
+/* This macro sets up the buffer-global syntax table. */
+#define SETUP_BUFFER_SYNTAX_TABLE() \
+do \
+ { \
+ gl_state.use_global = 0; \
+ gl_state.current_syntax_table = BVAR (current_buffer, syntax_table);\
+ } while (0)
+
/* This macro should be called with FROM at the start of forward
search, or after the last position of the backward search. It
makes sure that the first char is picked up with correct table, so
#define SETUP_SYNTAX_TABLE(FROM, COUNT) \
do \
{ \
+ SETUP_BUFFER_SYNTAX_TABLE (); \
gl_state.b_property = BEGV; \
gl_state.e_property = ZV + 1; \
gl_state.object = Qnil; \
- gl_state.use_global = 0; \
gl_state.offset = 0; \
- gl_state.current_syntax_table = current_buffer->syntax_table; \
if (parse_sexp_lookup_properties) \
if ((COUNT) > 0 || (FROM) > BEGV) \
update_syntax_table ((COUNT) > 0 ? (FROM) : (FROM) - 1, (COUNT),\
while (0)
/* Same as above, but in OBJECT. If OBJECT is nil, use current buffer.
- If it is t, ignore properties altogether.
+ If it is t (which is only used in fast_c_string_match_ignore_case),
+ ignore properties altogether.
This is meant for regex.c to use. For buffers, regex.c passes arguments
to the UPDATE_SYNTAX_TABLE macros which are relative to BEGV.
#define SETUP_SYNTAX_TABLE_FOR_OBJECT(OBJECT, FROM, COUNT) \
do \
{ \
+ SETUP_BUFFER_SYNTAX_TABLE (); \
gl_state.object = (OBJECT); \
if (BUFFERP (gl_state.object)) \
{ \
else if (EQ (gl_state.object, Qt)) \
{ \
gl_state.b_property = 0; \
- gl_state.e_property = 1500000000; \
+ gl_state.e_property = PTRDIFF_MAX; \
gl_state.offset = 0; \
} \
else \
gl_state.e_property = 1 + SCHARS (gl_state.object); \
gl_state.offset = 0; \
} \
- gl_state.use_global = 0; \
- gl_state.current_syntax_table = current_buffer->syntax_table; \
if (parse_sexp_lookup_properties) \
update_syntax_table (((FROM) + gl_state.offset \
+ (COUNT > 0 ? 0 : -1)), \
struct gl_state_s
{
Lisp_Object object; /* The object we are scanning. */
- int start; /* Where to stop. */
- int stop; /* Where to stop. */
+ ptrdiff_t start; /* Where to stop. */
+ ptrdiff_t stop; /* Where to stop. */
int use_global; /* Whether to use global_code
or c_s_t. */
Lisp_Object global_code; /* Syntax code of current char. */
Lisp_Object current_syntax_table; /* Syntax table for current pos. */
Lisp_Object old_prop; /* Syntax-table prop at prev pos. */
- int b_property; /* First index where c_s_t is valid. */
- int e_property; /* First index where c_s_t is
+ ptrdiff_t b_property; /* First index where c_s_t is valid. */
+ ptrdiff_t e_property; /* First index where c_s_t is
not valid. */
INTERVAL forward_i; /* Where to start lookup on forward */
INTERVAL backward_i; /* or backward movement. The
intervals too, depending
on: */
/* Offset for positions specified to UPDATE_SYNTAX_TABLE. */
- int offset;
+ ptrdiff_t offset;
};
extern struct gl_state_s gl_state;
-extern int parse_sexp_lookup_properties;
-extern INTERVAL interval_of P_ ((int, Lisp_Object));
-
-extern int scan_words P_ ((int, int));
-
-/* arch-tag: 28833cca-cd73-4741-8c85-a3111166a0e0
- (do not change this comment) */
+extern ptrdiff_t scan_words (ptrdiff_t, EMACS_INT);