/* GNU Emacs routines to deal with syntax tables; also word and list parsing.
Copyright (C) 1985, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2002,
- 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
static int find_defun_start P_ ((int, int));
-static int back_comment P_ ((int, int, int, int, int, int *, int *));
+static int back_comment P_ ((EMACS_INT, EMACS_INT, EMACS_INT, int, int,
+ EMACS_INT *, EMACS_INT *));
static int char_quoted P_ ((int, int));
static Lisp_Object skip_chars P_ ((int, int, Lisp_Object, Lisp_Object, int));
-static Lisp_Object scan_lists P_ ((int, int, int, int));
+static Lisp_Object scan_lists P_ ((EMACS_INT, EMACS_INT, EMACS_INT, int));
static void scan_sexps_forward P_ ((struct lisp_parse_state *,
int, int, int, int,
int, Lisp_Object, int));
{
Lisp_Object tmp_table;
int cnt = 0, invalidate = 1;
- INTERVAL i, oldi;
+ INTERVAL i;
if (init)
{
gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
goto update;
}
- oldi = i = count > 0 ? gl_state.forward_i : gl_state.backward_i;
+ i = count > 0 ? gl_state.forward_i : gl_state.backward_i;
/* We are guaranteed to be called with CHARPOS either in i,
or further off. */
}
else
{
- gl_state.b_property = i->position + LENGTH (i) - gl_state.offset;
+ gl_state.b_property
+ = i->position + LENGTH (i) - gl_state.offset;
gl_state.backward_i = i;
}
return;
{
if (count > 0)
{
- gl_state.e_property = i->position + LENGTH (i) - gl_state.offset;
+ gl_state.e_property
+ = i->position + LENGTH (i) - gl_state.offset
+ /* e_property at EOB is not set to ZV but to ZV+1, so that
+ we can do INC(from);UPDATE_SYNTAX_TABLE_FORWARD without
+ having to check eob between the two. */
+ + (NULL_INTERVAL_P (next_interval (i)) ? 1 : 0);
gl_state.forward_i = i;
}
else
static int
back_comment (from, from_byte, stop, comnested, comstyle, charpos_ptr, bytepos_ptr)
- int from, from_byte, stop;
+ EMACS_INT from, from_byte, stop;
int comnested, comstyle;
- int *charpos_ptr, *bytepos_ptr;
+ EMACS_INT *charpos_ptr, *bytepos_ptr;
{
/* Look back, counting the parity of string-quotes,
and recording the comment-starters seen.
check_syntax_table (obj)
Lisp_Object obj;
{
- if (!(CHAR_TABLE_P (obj)
- && EQ (XCHAR_TABLE (obj)->purpose, Qsyntax_table)))
- wrong_type_argument (Qsyntax_table_p, obj);
+ CHECK_TYPE (CHAR_TABLE_P (obj) && EQ (XCHAR_TABLE (obj)->purpose, Qsyntax_table),
+ Qsyntax_table_p, obj);
}
DEFUN ("syntax-table", Fsyntax_table, Ssyntax_table, 0, 0, 0,
check_syntax_table (syntax_table);
SET_RAW_SYNTAX_ENTRY (syntax_table, XINT (c), Fstring_to_syntax (newentry));
+
+ /* We clear the regexp cache, since character classes can now have
+ different values from those in the compiled regexps.*/
+ clear_regexp_cache ();
+
return Qnil;
}
\f
static int
forw_comment (from, from_byte, stop, nesting, style, prev_syntax,
charpos_ptr, bytepos_ptr, incomment_ptr)
- int from, from_byte, stop;
+ EMACS_INT from, from_byte, stop;
int nesting, style, prev_syntax;
- int *charpos_ptr, *bytepos_ptr, *incomment_ptr;
+ EMACS_INT *charpos_ptr, *bytepos_ptr;
+ int *incomment_ptr;
{
register int c, c1;
register enum syntaxcode code;
(count)
Lisp_Object count;
{
- register int from;
- int from_byte;
- register int stop;
+ register EMACS_INT from;
+ EMACS_INT from_byte;
+ register EMACS_INT stop;
register int c, c1;
register enum syntaxcode code;
int comstyle = 0; /* style of comment encountered */
int comnested = 0; /* whether the comment is nestable or not */
int found;
- int count1;
- int out_charpos, out_bytepos;
+ EMACS_INT count1;
+ EMACS_INT out_charpos, out_bytepos;
int dummy;
CHECK_NUMBER (count);
while (1)
{
DEC_BOTH (from, from_byte);
- if (from == stop)
- break;
UPDATE_SYNTAX_TABLE_BACKWARD (from);
c = FETCH_CHAR (from_byte);
if (SYNTAX (c) == Scomment_fence
found = 1;
break;
}
+ else if (from == stop)
+ break;
}
if (found == 0)
{
from_byte = ini_byte;
goto leave;
}
+ else
+ /* We have skipped one comment. */
+ break;
}
else if (code == Sendcomment)
{
static Lisp_Object
scan_lists (from, count, depth, sexpflag)
- register int from;
- int count, depth, sexpflag;
+ register EMACS_INT from;
+ EMACS_INT count, depth;
+ int sexpflag;
{
Lisp_Object val;
- register int stop = count > 0 ? ZV : BEGV;
+ register EMACS_INT stop = count > 0 ? ZV : BEGV;
register int c, c1;
int stringterm;
int quoted;
int min_depth = depth; /* Err out if depth gets less than this. */
int comstyle = 0; /* style of comment encountered */
int comnested = 0; /* whether the comment is nestable or not */
- int temp_pos;
- int last_good = from;
+ EMACS_INT temp_pos;
+ EMACS_INT last_good = from;
int found;
- int from_byte;
- int out_bytepos, out_charpos;
+ EMACS_INT from_byte;
+ EMACS_INT out_bytepos, out_charpos;
int temp, dummy;
int multibyte_symbol_p = sexpflag && multibyte_syntax_as_symbol;
close1:
if (!--depth) goto done;
if (depth < min_depth)
- Fsignal (Qscan_error,
- Fcons (build_string ("Containing expression ends prematurely"),
- Fcons (make_number (last_good),
- Fcons (make_number (from), Qnil))));
+ xsignal3 (Qscan_error,
+ build_string ("Containing expression ends prematurely"),
+ make_number (last_good), make_number (from));
break;
case Sstring:
open2:
if (!--depth) goto done2;
if (depth < min_depth)
- Fsignal (Qscan_error,
- Fcons (build_string ("Containing expression ends prematurely"),
- Fcons (make_number (last_good),
- Fcons (make_number (from), Qnil))));
+ xsignal3 (Qscan_error,
+ build_string ("Containing expression ends prematurely"),
+ make_number (last_good), make_number (from));
break;
case Sendcomment:
return val;
lose:
- Fsignal (Qscan_error,
- Fcons (build_string ("Unbalanced parentheses"),
- Fcons (make_number (last_good),
- Fcons (make_number (from), Qnil))));
- abort ();
- /* NOTREACHED */
+ xsignal3 (Qscan_error,
+ build_string ("Unbalanced parentheses"),
+ make_number (last_good), make_number (from));
}
DEFUN ("scan-lists", Fscan_lists, Sscan_lists, 3, 3, 0,
int boundary_stop = commentstop == -1;
int nofence;
int found;
- int out_bytepos, out_charpos;
+ EMACS_INT out_bytepos, out_charpos;
int temp;
prev_from = from;
point is set to where parsing stops.
If fifth arg OLDSTATE is omitted or nil,
parsing assumes that FROM is the beginning of a function.
-Value is a list of ten elements describing final state of parsing:
+Value is a list of elements describing final state of parsing:
0. depth in parens.
1. character address of start of innermost containing list; nil if none.
2. character address of start of last complete sexp terminated.
in parentheses becomes equal to TARGETDEPTH.
Fourth arg STOPBEFORE non-nil means stop when come to
any character that starts a sexp.
-Fifth arg OLDSTATE is a nine-element list like what this function returns.
+Fifth arg OLDSTATE is a list like what this function returns.
It is used to initialize the state of the parse. Elements number 1, 2, 6
and 8 are ignored; you can leave off element 8 (the last) entirely.
Sixth arg COMMENTSTOP non-nil means stop at the start of a comment.
Vstandard_syntax_table = Fmake_char_table (Qsyntax_table, temp);
+ /* Control characters should not be whitespace. */
+ temp = XVECTOR (Vsyntax_code_object)->contents[(int) Spunct];
+ for (i = 0; i <= ' ' - 1; i++)
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, i, temp);
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, 0177, temp);
+
+ /* Except that a few really are whitespace. */
+ temp = XVECTOR (Vsyntax_code_object)->contents[(int) Swhitespace];
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, ' ', temp);
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, '\t', temp);
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, '\n', temp);
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, 015, temp);
+ SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, 014, temp);
+
temp = XVECTOR (Vsyntax_code_object)->contents[(int) Sword];
for (i = 'a'; i <= 'z'; i++)
SET_RAW_SYNTAX_ENTRY (Vstandard_syntax_table, i, temp);