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(SYNTAX_TABLE_BYTE_TO_CHAR): New macro.

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(struct gl_state_s): New field `object'.
(SETUP_SYNTAX_TABLE_FOR_OBJECT): Set it.
Handle non-current buffer properly.  Args renamed to all caps.
(SETUP_SYNTAX_TABLE): Set `object'.  Args renamed to all caps.
(UPDATE_SYNTAX_TABLE): Use gl_state.object.
(UPDATE_SYNTAX_TABLE_FORWARD, UPDATE_SYNTAX_TABLE_BACKWARD): Likewise.

(SETUP_SYNTAX_TABLE_FOR_OBJECT): Add gl_state.offset
when using the arg FROM.  Use BYTE_TO_CHAR.
This commit is contained in:
Richard M. Stallman 1998-01-16 17:52:16 +00:00
parent f1e3ff8000
commit c292db29eb
1 changed files with 53 additions and 20 deletions
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73
src/syntax.h
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@ -194,27 +194,50 @@ extern unsigned char syntax_spec_code[0400];
extern char syntax_code_spec[16];
/* Convert the byte offset BYTEPOS into a character position,
for the object recorded in gl_state with SETUP_SYNTAX_TABLE_FOR_OBJECT. */
#define SYNTAX_TABLE_BYTE_TO_CHAR(bytepos) \
(STRINGP (gl_state.object) \
? string_byte_to_char (gl_state.object, (bytepos)) \
: BUFFERP (gl_state.object) \
? buf_bytepos_to_charpos (XBUFFER (gl_state.object), (bytepos)) \
: NILP (gl_state.object) \
? BYTE_TO_CHAR ((bytepos)) \
: (bytepos))
/* Make syntax table state (gl_state) good for POS, assuming it is
currently good for a position before POS. */
#define UPDATE_SYNTAX_TABLE_FORWARD(pos) \
((pos) >= gl_state.e_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, 1, 0, Qnil), 1) : 0)
#define UPDATE_SYNTAX_TABLE_FORWARD(pos) \
((pos) >= gl_state.e_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, 1, 0, \
gl_state.object), \
1) \
: 0)
/* Make syntax table state (gl_state) good for POS, assuming it is
currently good for a position after POS. */
#define UPDATE_SYNTAX_TABLE_BACKWARD(pos) \
((pos) <= gl_state.b_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, -1, 0, Qnil), 1) : 0)
#define UPDATE_SYNTAX_TABLE_BACKWARD(pos) \
((pos) <= gl_state.b_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, -1, 0, \
gl_state.object), \
1) \
: 0)
/* Make syntax table good for POS. */
#define UPDATE_SYNTAX_TABLE(pos) \
((pos) <= gl_state.b_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, -1, 0, Qnil), 1) \
: ((pos) >= gl_state.e_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, 1, 0, Qnil), 1) : 0))
#define UPDATE_SYNTAX_TABLE(pos) \
((pos) <= gl_state.b_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, -1, 0, \
gl_state.object), \
1) \
: ((pos) >= gl_state.e_property - gl_state.offset \
? (update_syntax_table ((pos) + gl_state.offset, 1, 0, \
gl_state.object), \
1) \
: 0))
/* This macro should be called with FROM at the start of forward
search, or after the last position of the backward search. It
@ -224,14 +247,15 @@ extern char syntax_code_spec[16];
Sign of COUNT gives the direction of the search.
*/
#define SETUP_SYNTAX_TABLE(from,count) \
#define SETUP_SYNTAX_TABLE(FROM, COUNT) \
gl_state.b_property = BEGV - 1; \
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) \
update_syntax_table ((count) > 0 ? (from) : (from) - 1, (count), \
update_syntax_table ((COUNT) > 0 ? (FROM) : (FROM) - 1, (COUNT), \
1, Qnil);
/* Same as above, but in OBJECT. If OBJECT is nil, use current buffer.
@ -241,16 +265,24 @@ extern char syntax_code_spec[16];
to the UPDATE_SYNTAX_TABLE macros which are relative to BEGV.
So if it is a buffer, we set the offset field to BEGV. */
#define SETUP_SYNTAX_TABLE_FOR_OBJECT(object, from, count) \
#define SETUP_SYNTAX_TABLE_FOR_OBJECT(OBJECT, FROM, COUNT) \
if (1) \
{ \
if (BUFFERP (object) || NILP (object)) \
gl_state.object = (OBJECT); \
if (BUFFERP (gl_state.object)) \
{ \
struct buffer *buf = XBUFFER (gl_state.object); \
gl_state.b_property = BUF_BEGV (buf) - 1; \
gl_state.e_property = BUF_ZV (buf); \
gl_state.offset = BUF_BEGV (buf) - 1; \
} \
else if (NILP (gl_state.object)) \
{ \
gl_state.b_property = BEGV - 1; \
gl_state.e_property = ZV; \
gl_state.offset = BEGV - 1; \
} \
else if (EQ (object, Qt)) \
else if (EQ (gl_state.object, Qt)) \
{ \
gl_state.b_property = - 1; \
gl_state.e_property = 1500000000; \
@ -259,20 +291,21 @@ if (1) \
else \
{ \
gl_state.b_property = -1; \
gl_state.e_property = 1 + XSTRING (object)->size; \
gl_state.e_property = 1 + XSTRING (gl_state.object)->size; \
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 ((bytepos_to_charpos (from) \
+ (count > 0 ? 0 : -1)), \
count, 1, object); \
update_syntax_table ((BYTE_TO_CHAR ((FROM) + gl_state.offset) \
+ (COUNT > 0 ? 0 : -1)), \
COUNT, 1, gl_state.object); \
} \
else
struct gl_state_s
{
Lisp_Object object; /* The object we are scanning. */
int start; /* Where to stop. */
int stop; /* Where to stop. */
int use_global; /* Whether to use global_code