/* Composite sequence support.
- Copyright (C) 2001-2011 Free Software Foundation, Inc.
+ Copyright (C) 2001-2012 Free Software Foundation, Inc.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H14PRO021
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
-#include <setjmp.h>
+
+#define COMPOSITE_INLINE EXTERN_INLINE
+
#include "lisp.h"
-#include "buffer.h"
#include "character.h"
+#include "buffer.h"
#include "coding.h"
#include "intervals.h"
#include "window.h"
auto-compositions. */
#define MAX_AUTO_COMPOSITION_LOOKBACK 3
-static Lisp_Object Fcomposition_get_gstring (Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object);
-
/* Temporary variable used in macros COMPOSITION_XXX. */
Lisp_Object composition_temp;
for (i = 0; i < nchars; i++)
{
FETCH_STRING_CHAR_ADVANCE (ch, string, charpos, bytepos);
- XVECTOR (key)->contents[i] = make_number (ch);
+ ASET (key, i, make_number (ch));
}
else
for (i = 0; i < nchars; i++)
{
FETCH_CHAR_ADVANCE (ch, charpos, bytepos);
- XVECTOR (key)->contents[i] = make_number (ch);
+ ASET (key, i, make_number (ch));
}
}
else
memory_full (SIZE_MAX);
/* Register the composition in composition_table. */
- cmp = (struct composition *) xmalloc (sizeof (struct composition));
+ cmp = xmalloc (sizeof *cmp);
cmp->method = method;
cmp->hash_index = hash_index;
else
{
/* Rule-base composition. */
- float leftmost = 0.0, rightmost;
+ double leftmost = 0.0, rightmost;
ch = XINT (key_contents[0]);
rightmost = ch != '\t' ? CHAR_WIDTH (ch) : 1;
{
int rule, gref, nref;
int this_width;
- float this_left;
+ double this_left;
rule = XINT (key_contents[i]);
ch = XINT (key_contents[i + 1]);
This doesn't check the validity of composition. */
-int
+bool
find_composition (ptrdiff_t pos, ptrdiff_t limit,
ptrdiff_t *start, ptrdiff_t *end,
Lisp_Object *prop, Lisp_Object object)
Lisp_Object, Lisp_Object,
Lisp_Object);
-int
+bool
composition_gstring_p (Lisp_Object gstring)
{
Lisp_Object header;
}
metrics->width = metrics->lbearing = metrics->rbearing = 0;
}
- for (glyph = &LGSTRING_GLYPH (gstring, from); from < to; from++, glyph++)
+ for (glyph = lgstring_glyph_addr (gstring, from); from < to; from++, glyph++)
{
int x;
string);
if (NILP (LGSTRING_ID (lgstring)))
{
- Lisp_Object args[6];
-
/* Save point as marker before calling out to lisp. */
if (NILP (string))
- {
- Lisp_Object m = Fmake_marker ();
- set_marker_both (m, Qnil, pt, pt_byte);
- record_unwind_protect (restore_point_unwind, m);
- }
-
- args[0] = Vauto_composition_function;
- args[1] = AREF (rule, 2);
- args[2] = pos;
- args[3] = make_number (to);
- args[4] = font_object;
- args[5] = string;
- lgstring = safe_call (6, args);
+ record_unwind_protect (restore_point_unwind,
+ build_marker (current_buffer, pt, pt_byte));
+ lgstring = safe_call (6, Vauto_composition_function, AREF (rule, 2),
+ pos, make_number (to), font_object, string);
}
return unbind_to (count, lgstring);
}
string. In that case, FACE must not be NULL.
If the character is composed, setup members of CMP_IT (id, nglyphs,
- from, to, reversed_p), and return 1. Otherwise, update
- CMP_IT->stop_pos, and return 0. */
+ from, to, reversed_p), and return true. Otherwise, update
+ CMP_IT->stop_pos, and return false. */
-int
-composition_reseat_it (struct composition_it *cmp_it, ptrdiff_t charpos, ptrdiff_t bytepos, ptrdiff_t endpos, struct window *w, struct face *face, Lisp_Object string)
+bool
+composition_reseat_it (struct composition_it *cmp_it, ptrdiff_t charpos,
+ ptrdiff_t bytepos, ptrdiff_t endpos, struct window *w,
+ struct face *face, Lisp_Object string)
{
- if (endpos < 0)
- endpos = NILP (string) ? BEGV : 0;
-
if (cmp_it->ch == -2)
{
composition_compute_stop_pos (cmp_it, charpos, bytepos, endpos, string);
return 0;
}
+ if (endpos < 0)
+ endpos = NILP (string) ? BEGV : 0;
+
if (cmp_it->ch < 0)
{
/* We are looking at a static composition. */
{
ptrdiff_t cpos = charpos, bpos = bytepos;
- while (1)
+ cmp_it->reversed_p = 1;
+ elt = XCAR (val);
+ if (cmp_it->lookback > 0)
{
- elt = XCAR (val);
- if (cmp_it->lookback > 0)
- {
- cpos = charpos - cmp_it->lookback;
- if (STRINGP (string))
- bpos = string_char_to_byte (string, cpos);
- else
- bpos = CHAR_TO_BYTE (cpos);
- }
- lgstring = autocmp_chars (elt, cpos, bpos, charpos + 1, w, face,
- string);
- if (composition_gstring_p (lgstring)
- && cpos + LGSTRING_CHAR_LEN (lgstring) - 1 == charpos)
- break;
- /* Composition failed or didn't cover the current
- character. */
- if (cmp_it->lookback == 0)
- goto no_composition;
- lgstring = Qnil;
- /* Try to find a shorter compostion that starts after CPOS. */
- composition_compute_stop_pos (cmp_it, charpos, bytepos, cpos,
- string);
- if (cmp_it->ch == -2 || cmp_it->stop_pos < charpos)
- goto no_composition;
- val = CHAR_TABLE_REF (Vcomposition_function_table, cmp_it->ch);
- for (i = 0; i < cmp_it->rule_idx; i++, val = XCDR (val));
+ cpos = charpos - cmp_it->lookback;
+ if (STRINGP (string))
+ bpos = string_char_to_byte (string, cpos);
+ else
+ bpos = CHAR_TO_BYTE (cpos);
}
- cmp_it->reversed_p = 1;
+ lgstring = autocmp_chars (elt, cpos, bpos, charpos + 1, w, face,
+ string);
+ if (! composition_gstring_p (lgstring)
+ || cpos + LGSTRING_CHAR_LEN (lgstring) - 1 != charpos)
+ /* Composition failed or didn't cover the current
+ character. */
+ goto no_composition;
}
if (NILP (lgstring))
goto no_composition;
/* BYTEPOS is calculated in composition_compute_stop_pos */
bytepos = -1;
}
+ if (cmp_it->reversed_p)
+ endpos = -1;
composition_compute_stop_pos (cmp_it, charpos, bytepos, endpos, string);
return 0;
}
/* This is like find_composition, but find an automatic composition
instead. It is assured that POS is not within a static
composition. If found, set *GSTRING to the glyph-string
- representing the composition, and return 1. Otherwise, *GSTRING to
- Qnil, and return 0. */
+ representing the composition, and return true. Otherwise, *GSTRING to
+ Qnil, and return false. */
-static int
+static bool
find_automatic_composition (ptrdiff_t pos, ptrdiff_t limit,
ptrdiff_t *start, ptrdiff_t *end,
Lisp_Object *gstring, Lisp_Object string)
int c;
Lisp_Object window;
struct window *w;
- int need_adjustment = 0;
+ bool need_adjustment = 0;
window = Fget_buffer_window (Fcurrent_buffer (), Qnil);
if (NILP (window))