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(handle_single_display_prop): Use safe_call1.

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(safe_call): Renamed from call_function.
(safe_call1): New function.
(handle_fontified_prop): Use safe_call1 instead of call1.
(safe_eval): Renamed from eval_form.
(safe_eval_handler): Renamed from eval_handler.
(handle_single_display_prop, display_mode_element): Use safe_eval
instead of eval_form.
This commit is contained in:
Gerd Moellmann 2000-10-05 19:29:05 +00:00
parent 1db0076e78
commit 116d6f5cae
1 changed files with 30 additions and 19 deletions
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49
src/xdisp.c
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@ -664,7 +664,7 @@ static int string_char_and_length P_ ((unsigned char *, int, int *));
static struct text_pos display_prop_end P_ ((struct it *, Lisp_Object,
struct text_pos));
static int compute_window_start_on_continuation_line P_ ((struct window *));
static Lisp_Object eval_handler P_ ((Lisp_Object));
static Lisp_Object safe_eval_handler P_ ((Lisp_Object));
static void insert_left_trunc_glyphs P_ ((struct it *));
static struct glyph_row *get_overlay_arrow_glyph_row P_ ((struct window *));
static void extend_face_to_end_of_line P_ ((struct it *));
@ -1089,10 +1089,10 @@ compute_string_pos (newpos, pos, string)
Lisp form evaluation
***********************************************************************/
/* Error handler for eval_form and call_function. */
/* Error handler for safe_eval and safe_call. */
static Lisp_Object
eval_handler (arg)
safe_eval_handler (arg)
Lisp_Object arg;
{
return Qnil;
@ -1103,7 +1103,7 @@ eval_handler (arg)
wrong. */
Lisp_Object
eval_form (sexpr)
safe_eval (sexpr)
Lisp_Object sexpr;
{
int count = specpdl_ptr - specpdl;
@ -1112,7 +1112,7 @@ eval_form (sexpr)
GCPRO1 (sexpr);
specbind (Qinhibit_redisplay, Qt);
val = internal_condition_case_1 (Feval, sexpr, Qerror, eval_handler);
val = internal_condition_case_1 (Feval, sexpr, Qerror, safe_eval_handler);
UNGCPRO;
return unbind_to (count, val);
}
@ -1122,7 +1122,7 @@ eval_form (sexpr)
Return the result, or nil if something went wrong. */
Lisp_Object
call_function (nargs, args)
safe_call (nargs, args)
int nargs;
Lisp_Object *args;
{
@ -1134,12 +1134,26 @@ call_function (nargs, args)
gcpro1.nvars = nargs;
specbind (Qinhibit_redisplay, Qt);
val = internal_condition_case_2 (Ffuncall, nargs, args, Qerror,
eval_handler);
safe_eval_handler);
UNGCPRO;
return unbind_to (count, val);
}
/* Call function FN with one argument ARG.
Return the result, or nil if something went wrong. */
Lisp_Object
safe_call1 (fn, arg)
Lisp_Object fn, arg;
{
Lisp_Object args[2];
args[0] = fn;
args[1] = arg;
return safe_call (2, args);
}
/***********************************************************************
Debugging
@ -1891,7 +1905,7 @@ handle_fontified_prop (it)
specbind (Qafter_change_functions, Qnil);
if (!CONSP (val) || EQ (XCAR (val), Qlambda))
call1 (val, pos);
safe_call1 (val, pos);
else
{
Lisp_Object globals, fn;
@ -1917,11 +1931,11 @@ handle_fontified_prop (it)
{
fn = XCAR (globals);
if (!EQ (fn, Qt))
call1 (fn, pos);
safe_call1 (fn, pos);
}
}
else
call1 (fn, pos);
safe_call1 (fn, pos);
}
UNGCPRO;
@ -2453,7 +2467,7 @@ handle_single_display_prop (it, prop, object, position)
TEMP_SET_PT_BOTH (CHARPOS (end_pos), BYTEPOS (end_pos));
}
form = eval_form (form);
form = safe_eval (form);
if (BUFFERP (object))
TEMP_SET_PT_BOTH (CHARPOS (pt), BYTEPOS (pt));
@ -2493,12 +2507,9 @@ handle_single_display_prop (it, prop, object, position)
{
/* Call function with current height as argument.
Value is the new height. */
Lisp_Object args[2], height;
args[0] = it->font_height;
args[1] = face->lface[LFACE_HEIGHT_INDEX];
height = call_function (2, args);
Lisp_Object height;
height = safe_call1 (it->font_height,
face->lface[LFACE_HEIGHT_INDEX]);
if (NUMBERP (height))
new_height = XFLOATINT (height);
}
@ -2519,7 +2530,7 @@ handle_single_display_prop (it, prop, object, position)
int count = specpdl_ptr - specpdl;
specbind (Qheight, face->lface[LFACE_HEIGHT_INDEX]);
value = eval_form (it->font_height);
value = safe_eval (it->font_height);
unbind_to (count, Qnil);
if (NUMBERP (value))
@ -12411,7 +12422,7 @@ display_mode_element (it, depth, field_width, precision, elt)
struct gcpro gcpro1;
Lisp_Object spec;
spec = eval_form (XCAR (XCDR (elt)));
spec = safe_eval (XCAR (XCDR (elt)));
GCPRO1 (spec);
n += display_mode_element (it, depth, field_width - n,
precision - n, spec);