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Commit bb0de084 authored by Stefan Monnier's avatar Stefan Monnier
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(update_syntax_table): Simplify. 

(Fforward_comment): Don't skip quoted chars when going backward.
parent 4948e1f2
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Showing with 59 additions and 74 deletions
src/syntax.c
View file @ bb0de084
......@@ -134,17 +134,17 @@ update_syntax_table (charpos, count, init, object)
if (init)
{
gl_state.old_prop = Qnil;
gl_state.start = gl_state.b_property;
gl_state.stop = gl_state.e_property;
gl_state.forward_i = interval_of (charpos, object);
i = gl_state.backward_i = gl_state.forward_i;
gl_state.left_ok = gl_state.right_ok = 1;
i = interval_of (charpos, object);
gl_state.backward_i = gl_state.forward_i = i;
invalidate = 0;
if (NULL_INTERVAL_P (i))
return;
/* interval_of updates only ->position of the return value, so
update the parents manually to speed up update_interval. */
while (!NULL_PARENT (i))
while (!NULL_PARENT (i))
{
if (AM_RIGHT_CHILD (i))
INTERVAL_PARENT (i)->position = i->position
......@@ -157,7 +157,7 @@ update_syntax_table (charpos, count, init, object)
i = INTERVAL_PARENT (i);
}
i = gl_state.forward_i;
gl_state.b_property = i->position - 1 - gl_state.offset;
gl_state.b_property = i->position - gl_state.offset;
gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
goto update;
}
......@@ -173,10 +173,9 @@ update_syntax_table (charpos, count, init, object)
error ("Error in syntax_table logic for intervals <-");
/* Update the interval. */
i = update_interval (i, charpos);
if (!gl_state.left_ok || oldi->position != INTERVAL_LAST_POS (i))
if (INTERVAL_LAST_POS (i) != gl_state.b_property)
{
invalidate = 0;
gl_state.right_ok = 1; /* Invalidate the other end. */
gl_state.forward_i = i;
gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
}
......@@ -187,19 +186,13 @@ update_syntax_table (charpos, count, init, object)
error ("Error in syntax_table logic for intervals ->");
/* Update the interval. */
i = update_interval (i, charpos);
if (!gl_state.right_ok || i->position != INTERVAL_LAST_POS (oldi))
if (i->position != gl_state.e_property)
{
invalidate = 0;
gl_state.left_ok = 1; /* Invalidate the other end. */
gl_state.backward_i = i;
gl_state.b_property = i->position - 1 - gl_state.offset;
gl_state.b_property = i->position - gl_state.offset;
}
}
else if (count > 0 ? gl_state.right_ok : gl_state.left_ok)
{
/* We do not need to recalculate tmp_table. */
tmp_table = gl_state.old_prop;
}
update:
tmp_table = textget (i->plist, Qsyntax_table);
......@@ -213,32 +206,33 @@ update_syntax_table (charpos, count, init, object)
if (count > 0)
{
gl_state.backward_i = i;
gl_state.left_ok = 1; /* Invalidate the other end. */
gl_state.b_property = i->position - 1 - gl_state.offset;
}
else
gl_state.b_property = i->position - gl_state.offset;
}
else
{
gl_state.forward_i = i;
gl_state.right_ok = 1; /* Invalidate the other end. */
gl_state.forward_i = i;
gl_state.e_property = INTERVAL_LAST_POS (i) - gl_state.offset;
}
}
gl_state.current_syntax_table = tmp_table;
gl_state.old_prop = tmp_table;
if (EQ (Fsyntax_table_p (tmp_table), Qt))
{
gl_state.use_global = 0;
}
else if (CONSP (tmp_table))
if (!EQ (tmp_table, gl_state.old_prop))
{
gl_state.use_global = 1;
gl_state.global_code = tmp_table;
}
else
{
gl_state.use_global = 0;
gl_state.current_syntax_table = current_buffer->syntax_table;
gl_state.current_syntax_table = tmp_table;
gl_state.old_prop = tmp_table;
if (EQ (Fsyntax_table_p (tmp_table), Qt))
{
gl_state.use_global = 0;
}
else if (CONSP (tmp_table))
{
gl_state.use_global = 1;
gl_state.global_code = tmp_table;
}
else
{
gl_state.use_global = 0;
gl_state.current_syntax_table = current_buffer->syntax_table;
}
}
while (!NULL_INTERVAL_P (i))
......@@ -246,42 +240,39 @@ update_syntax_table (charpos, count, init, object)
if (cnt && !EQ (tmp_table, textget (i->plist, Qsyntax_table)))
{
if (count > 0)
gl_state.right_ok = 0;
else
gl_state.left_ok = 0;
break;
{
gl_state.e_property = i->position - gl_state.offset;
gl_state.forward_i = i;
}
else
{
gl_state.b_property = i->position + LENGTH (i) - gl_state.offset;
gl_state.backward_i = i;
}
return;
}
else if (cnt == INTERVALS_AT_ONCE)
{
if (count > 0)
gl_state.right_ok = 1;
else
gl_state.left_ok = 1;
break;
{
gl_state.e_property = i->position + LENGTH (i) - gl_state.offset;
gl_state.forward_i = i;
}
else
{
gl_state.b_property = i->position - gl_state.offset;
gl_state.backward_i = i;
}
return;
}
cnt++;
i = count > 0 ? next_interval (i) : previous_interval (i);
}
if (NULL_INTERVAL_P (i))
{ /* This property goes to the end. */
if (count > 0)
gl_state.e_property = gl_state.stop;
else
gl_state.b_property = gl_state.start;
}
else
{
if (count > 0)
{
gl_state.e_property = i->position - gl_state.offset;
gl_state.forward_i = i;
}
else
{
gl_state.b_property = i->position + LENGTH (i) - 1 - gl_state.offset;
gl_state.backward_i = i;
}
}
eassert (NULL_INTERVAL_P (i)); /* This property goes to the end. */
if (count > 0)
gl_state.e_property = gl_state.stop;
else
gl_state.b_property = gl_state.start;
}
/* Returns TRUE if char at CHARPOS is quoted.
......@@ -1929,11 +1920,6 @@ between them, return t; otherwise return nil.")
DEC_BOTH (from, from_byte);
/* char_quoted does UPDATE_SYNTAX_TABLE_BACKWARD (from). */
quoted = char_quoted (from, from_byte);
if (quoted)
{
DEC_BOTH (from, from_byte);
goto leave;
}
c = FETCH_CHAR (from_byte);
code = SYNTAX (c);
comstyle = 0;
......@@ -2010,7 +1996,7 @@ between them, return t; otherwise return nil.")
break;
}
}
else if (code != Swhitespace)
else if (code != Swhitespace || quoted)
{
leave:
immediate_quit = 0;
......@@ -3031,11 +3017,10 @@ syms_of_syntax ()
"Non-nil means `forward-sexp', etc., should treat comments as whitespace.");
DEFVAR_BOOL ("parse-sexp-lookup-properties", &parse_sexp_lookup_properties,
"Non-nil means `forward-sexp', etc., grant `syntax-table' property.\n\
The value of this property should be either a syntax table, or a cons\n\
of the form (SYNTAXCODE . MATCHCHAR), SYNTAXCODE being the numeric\n\
syntax code, MATCHCHAR being nil or the character to match (which is\n\
relevant only for open/close type.");
"Non-nil means `forward-sexp', etc., obey `syntax-table' property.\n\
Otherwise, that text property is simply ignored.\n\
See the info node `(elisp)Syntax Properties' for a description of the\n\
`syntax-table' property.");
words_include_escapes = 0;
DEFVAR_BOOL ("words-include-escapes", &words_include_escapes,
......
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