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Commit 57d53d1b authored by Kenichi Handa's avatar Kenichi Handa
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(map_sub_char_table): Make it work for the top-level 

char-table.  Fix handling of parent char-table.
(map_char_table):  Adjusted for the above change.
parent ee82fbcd
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Showing with 103 additions and 42 deletions
src/chartab.c
View file @ 57d53d1b
......@@ -705,34 +705,104 @@ DEFUN ("optimize-char-table", Foptimize_char_table, Soptimize_char_table,
}
/* Map C_FUNCTION or FUNCTION over TABLE (top or sub char-table),
calling it for each character or group of characters that share a
value. RANGE is a cons (FROM . TO) specifying the range of target
characters, VAL is a value of FROM in TABLE, DEFAULT_VAL is the
default value of the char-table, PARENT is the parent of the
char-table.
ARG is passed to C_FUNCTION when that is called.
It returns the value of last character covered by TABLE (not the
value inheritted from the parent), and by side-effect, the car part
of RANGE is updated to the minimum character C where C and all the
following characters in TABLE have the same value. */
static Lisp_Object
map_sub_char_table (c_function, function, table, arg, val, range,
default_val, parent)
void (*c_function) P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
Lisp_Object function, table, arg, val, range, default_val, parent;
{
struct Lisp_Sub_Char_Table *tbl = XSUB_CHAR_TABLE (table);
int depth = XINT (tbl->depth);
/* Pointer to the elements of TABLE. */
Lisp_Object *contents;
/* Depth of TABLE. */
int depth;
/* Minimum and maxinum characters covered by TABLE. */
int min_char, max_char;
/* Number of characters covered by one element of TABLE. */
int chars_in_block;
int from = XINT (XCAR (range)), to = XINT (XCDR (range));
int i, c;
for (i = 0, c = XINT (tbl->min_char); i < chartab_size[depth];
i++, c += chartab_chars[depth])
if (SUB_CHAR_TABLE_P (table))
{
Lisp_Object this;
struct Lisp_Sub_Char_Table *tbl = XSUB_CHAR_TABLE (table);
depth = XINT (tbl->depth);
contents = tbl->contents;
min_char = XINT (tbl->min_char);
max_char = min_char + chartab_chars[depth - 1] - 1;
}
else
{
depth = 0;
contents = XCHAR_TABLE (table)->contents;
min_char = 0;
max_char = MAX_CHAR;
}
chars_in_block = chartab_chars[depth];
if (to < max_char)
max_char = to;
/* Set I to the index of the first element to check. */
if (from <= min_char)
i = 0;
else
i = (from - min_char) / chars_in_block;
for (c = min_char + chars_in_block * i; c <= max_char;
i++, c += chars_in_block)
{
Lisp_Object this = contents[i];
int nextc = c + chars_in_block;
this = tbl->contents[i];
if (SUB_CHAR_TABLE_P (this))
val = map_sub_char_table (c_function, function, this, arg, val, range,
default_val, parent);
{
if (to >= nextc)
XSETCDR (range, make_number (nextc - 1));
val = map_sub_char_table (c_function, function, this, arg,
val, range, default_val, parent);
}
else
{
if (NILP (this))
this = default_val;
if (NILP (this) && ! NILP (parent))
this = CHAR_TABLE_REF (parent, c);
if (NILP (Fequal (val, this)))
{
if (! NILP (val))
int different_value = 1;
if (NILP (val))
{
if (! NILP (parent))
{
Lisp_Object temp = XCHAR_TABLE (parent)->parent;
/* This is to get a value of FROM in PARENT
without checking the parent of PARENT. */
XCHAR_TABLE (parent)->parent = Qnil;
val = CHAR_TABLE_REF (parent, from);
XCHAR_TABLE (parent)->parent = temp;
XSETCDR (range, make_number (c - 1));
val = map_sub_char_table (c_function, function,
parent, arg, val, range,
XCHAR_TABLE (parent)->defalt,
XCHAR_TABLE (parent)->parent);
if (! NILP (Fequal (val, this)))
different_value = 0;
}
}
if (! NILP (val) && different_value)
{
XSETCDR (range, make_number (c - 1));
if (depth == 3
......@@ -752,9 +822,11 @@ map_sub_char_table (c_function, function, table, arg, val, range,
}
}
val = this;
from = c;
XSETCAR (range, make_number (c));
}
}
XSETCDR (range, make_number (to));
}
return val;
}
......@@ -774,46 +846,35 @@ map_char_table (c_function, function, table, arg)
int c, i;
struct gcpro gcpro1, gcpro2, gcpro3;
range = Fcons (make_number (0), Qnil);
range = Fcons (make_number (0), make_number (MAX_CHAR));
GCPRO3 (table, arg, range);
val = XCHAR_TABLE (table)->ascii;
if (SUB_CHAR_TABLE_P (val))
val = XSUB_CHAR_TABLE (val)->contents[0];
for (i = 0, c = 0; i < chartab_size[0]; i++, c += chartab_chars[0])
val = map_sub_char_table (c_function, function, table, arg, val, range,
XCHAR_TABLE (table)->defalt,
XCHAR_TABLE (table)->parent);
/* If VAL is nil and TABLE has a parent, we must consult the parent
recursively. */
while (NILP (val) && ! NILP (XCHAR_TABLE (table)->parent))
{
Lisp_Object this;
this = XCHAR_TABLE (table)->contents[i];
if (SUB_CHAR_TABLE_P (this))
val = map_sub_char_table (c_function, function, this, arg, val, range,
XCHAR_TABLE (table)->defalt,
XCHAR_TABLE (table)->parent);
else
{
if (NILP (this))
this = XCHAR_TABLE (table)->defalt;
if (NILP (this) && ! NILP (XCHAR_TABLE (table)->parent))
this = CHAR_TABLE_REF (XCHAR_TABLE (table)->parent, c);
if (NILP (Fequal (val, this)))
{
if (! NILP (val))
{
XSETCDR (range, make_number (c - 1));
if (c_function)
(*c_function) (arg, range, val);
else
call2 (function, range, val);
}
val = this;
XSETCAR (range, make_number (c));
}
}
Lisp_Object parent = XCHAR_TABLE (table)->parent;
Lisp_Object temp = XCHAR_TABLE (parent)->parent;
int from = XINT (XCAR (range));
/* This is to get a value of FROM in PARENT without checking the
parent of PARENT. */
XCHAR_TABLE (parent)->parent = Qnil;
val = CHAR_TABLE_REF (parent, from);
XCHAR_TABLE (parent)->parent = temp;
val = map_sub_char_table (c_function, function, parent, arg, val, range,
XCHAR_TABLE (parent)->defalt,
XCHAR_TABLE (parent)->parent);
table = parent;
}
if (! NILP (val))
{
XSETCDR (range, make_number (c - 1));
if (c_function)
(*c_function) (arg, range, val);
else
......
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