Mercurial > hg > xemacs-beta
annotate src/charset.h @ 5127:a9c41067dd88 ben-lisp-object
more cleanups, terminology clarification, lots of doc work
-------------------- ChangeLog entries follow: --------------------
man/ChangeLog addition:
2010-03-05 Ben Wing <ben@xemacs.org>
* internals/internals.texi (Introduction to Allocation):
* internals/internals.texi (Integers and Characters):
* internals/internals.texi (Allocation from Frob Blocks):
* internals/internals.texi (lrecords):
* internals/internals.texi (Low-level allocation):
Rewrite section on allocation of Lisp objects to reflect the new
reality. Remove references to nonexistent XSETINT and XSETCHAR.
modules/ChangeLog addition:
2010-03-05 Ben Wing <ben@xemacs.org>
* postgresql/postgresql.c (allocate_pgconn):
* postgresql/postgresql.c (allocate_pgresult):
* postgresql/postgresql.h (struct Lisp_PGconn):
* postgresql/postgresql.h (struct Lisp_PGresult):
* ldap/eldap.c (allocate_ldap):
* ldap/eldap.h (struct Lisp_LDAP):
Same changes as in src/ dir. See large log there in ChangeLog,
but basically:
ALLOC_LISP_OBJECT -> ALLOC_NORMAL_LISP_OBJECT
LISP_OBJECT_HEADER -> NORMAL_LISP_OBJECT_HEADER
../hlo/src/ChangeLog addition:
2010-03-05 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (old_alloc_sized_lcrecord):
* alloc.c (very_old_free_lcrecord):
* alloc.c (copy_lisp_object):
* alloc.c (zero_sized_lisp_object):
* alloc.c (zero_nonsized_lisp_object):
* alloc.c (lisp_object_storage_size):
* alloc.c (free_normal_lisp_object):
* alloc.c (FREE_FIXED_TYPE_WHEN_NOT_IN_GC):
* alloc.c (ALLOC_FROB_BLOCK_LISP_OBJECT):
* alloc.c (Fcons):
* alloc.c (noseeum_cons):
* alloc.c (make_float):
* alloc.c (make_bignum):
* alloc.c (make_bignum_bg):
* alloc.c (make_ratio):
* alloc.c (make_ratio_bg):
* alloc.c (make_ratio_rt):
* alloc.c (make_bigfloat):
* alloc.c (make_bigfloat_bf):
* alloc.c (size_vector):
* alloc.c (make_compiled_function):
* alloc.c (Fmake_symbol):
* alloc.c (allocate_extent):
* alloc.c (allocate_event):
* alloc.c (make_key_data):
* alloc.c (make_button_data):
* alloc.c (make_motion_data):
* alloc.c (make_process_data):
* alloc.c (make_timeout_data):
* alloc.c (make_magic_data):
* alloc.c (make_magic_eval_data):
* alloc.c (make_eval_data):
* alloc.c (make_misc_user_data):
* alloc.c (Fmake_marker):
* alloc.c (noseeum_make_marker):
* alloc.c (size_string_direct_data):
* alloc.c (make_uninit_string):
* alloc.c (make_string_nocopy):
* alloc.c (mark_lcrecord_list):
* alloc.c (alloc_managed_lcrecord):
* alloc.c (free_managed_lcrecord):
* alloc.c (sweep_lcrecords_1):
* alloc.c (malloced_storage_size):
* buffer.c (allocate_buffer):
* buffer.c (compute_buffer_usage):
* buffer.c (DEFVAR_BUFFER_LOCAL_1):
* buffer.c (nuke_all_buffer_slots):
* buffer.c (common_init_complex_vars_of_buffer):
* buffer.h (struct buffer_text):
* buffer.h (struct buffer):
* bytecode.c:
* bytecode.c (make_compiled_function_args):
* bytecode.c (size_compiled_function_args):
* bytecode.h (struct compiled_function_args):
* casetab.c (allocate_case_table):
* casetab.h (struct Lisp_Case_Table):
* charset.h (struct Lisp_Charset):
* chartab.c (fill_char_table):
* chartab.c (Fmake_char_table):
* chartab.c (make_char_table_entry):
* chartab.c (copy_char_table_entry):
* chartab.c (Fcopy_char_table):
* chartab.c (put_char_table):
* chartab.h (struct Lisp_Char_Table_Entry):
* chartab.h (struct Lisp_Char_Table):
* console-gtk-impl.h (struct gtk_device):
* console-gtk-impl.h (struct gtk_frame):
* console-impl.h (struct console):
* console-msw-impl.h (struct Lisp_Devmode):
* console-msw-impl.h (struct mswindows_device):
* console-msw-impl.h (struct msprinter_device):
* console-msw-impl.h (struct mswindows_frame):
* console-msw-impl.h (struct mswindows_dialog_id):
* console-stream-impl.h (struct stream_console):
* console-stream.c (stream_init_console):
* console-tty-impl.h (struct tty_console):
* console-tty-impl.h (struct tty_device):
* console-tty.c (allocate_tty_console_struct):
* console-x-impl.h (struct x_device):
* console-x-impl.h (struct x_frame):
* console.c (allocate_console):
* console.c (nuke_all_console_slots):
* console.c (DEFVAR_CONSOLE_LOCAL_1):
* console.c (common_init_complex_vars_of_console):
* data.c (make_weak_list):
* data.c (make_weak_box):
* data.c (make_ephemeron):
* database.c:
* database.c (struct Lisp_Database):
* database.c (allocate_database):
* database.c (finalize_database):
* device-gtk.c (allocate_gtk_device_struct):
* device-impl.h (struct device):
* device-msw.c:
* device-msw.c (mswindows_init_device):
* device-msw.c (msprinter_init_device):
* device-msw.c (finalize_devmode):
* device-msw.c (allocate_devmode):
* device-tty.c (allocate_tty_device_struct):
* device-x.c (allocate_x_device_struct):
* device.c:
* device.c (nuke_all_device_slots):
* device.c (allocate_device):
* dialog-msw.c (handle_question_dialog_box):
* elhash.c:
* elhash.c (struct Lisp_Hash_Table):
* elhash.c (finalize_hash_table):
* elhash.c (make_general_lisp_hash_table):
* elhash.c (Fcopy_hash_table):
* elhash.h (htentry):
* emacs.c (main_1):
* eval.c:
* eval.c (size_multiple_value):
* event-stream.c (finalize_command_builder):
* event-stream.c (allocate_command_builder):
* event-stream.c (free_command_builder):
* event-stream.c (event_stream_generate_wakeup):
* event-stream.c (event_stream_resignal_wakeup):
* event-stream.c (event_stream_disable_wakeup):
* event-stream.c (event_stream_wakeup_pending_p):
* events.h (struct Lisp_Timeout):
* events.h (struct command_builder):
* extents-impl.h:
* extents-impl.h (struct extent_auxiliary):
* extents-impl.h (struct extent_info):
* extents-impl.h (set_extent_no_chase_aux_field):
* extents-impl.h (set_extent_no_chase_normal_field):
* extents.c:
* extents.c (gap_array_marker):
* extents.c (gap_array):
* extents.c (extent_list_marker):
* extents.c (extent_list):
* extents.c (stack_of_extents):
* extents.c (gap_array_make_marker):
* extents.c (extent_list_make_marker):
* extents.c (allocate_extent_list):
* extents.c (SLOT):
* extents.c (mark_extent_auxiliary):
* extents.c (allocate_extent_auxiliary):
* extents.c (attach_extent_auxiliary):
* extents.c (size_gap_array):
* extents.c (finalize_extent_info):
* extents.c (allocate_extent_info):
* extents.c (uninit_buffer_extents):
* extents.c (allocate_soe):
* extents.c (copy_extent):
* extents.c (vars_of_extents):
* extents.h:
* faces.c (allocate_face):
* faces.h (struct Lisp_Face):
* faces.h (struct face_cachel):
* file-coding.c:
* file-coding.c (finalize_coding_system):
* file-coding.c (sizeof_coding_system):
* file-coding.c (Fcopy_coding_system):
* file-coding.h (struct Lisp_Coding_System):
* file-coding.h (MARKED_SLOT):
* fns.c (size_bit_vector):
* font-mgr.c:
* font-mgr.c (finalize_fc_pattern):
* font-mgr.c (print_fc_pattern):
* font-mgr.c (Ffc_pattern_p):
* font-mgr.c (Ffc_pattern_create):
* font-mgr.c (Ffc_name_parse):
* font-mgr.c (Ffc_name_unparse):
* font-mgr.c (Ffc_pattern_duplicate):
* font-mgr.c (Ffc_pattern_add):
* font-mgr.c (Ffc_pattern_del):
* font-mgr.c (Ffc_pattern_get):
* font-mgr.c (fc_config_create_using):
* font-mgr.c (fc_strlist_to_lisp_using):
* font-mgr.c (fontset_to_list):
* font-mgr.c (Ffc_config_p):
* font-mgr.c (Ffc_config_up_to_date):
* font-mgr.c (Ffc_config_build_fonts):
* font-mgr.c (Ffc_config_get_cache):
* font-mgr.c (Ffc_config_get_fonts):
* font-mgr.c (Ffc_config_set_current):
* font-mgr.c (Ffc_config_get_blanks):
* font-mgr.c (Ffc_config_get_rescan_interval):
* font-mgr.c (Ffc_config_set_rescan_interval):
* font-mgr.c (Ffc_config_app_font_add_file):
* font-mgr.c (Ffc_config_app_font_add_dir):
* font-mgr.c (Ffc_config_app_font_clear):
* font-mgr.c (size):
* font-mgr.c (Ffc_config_substitute):
* font-mgr.c (Ffc_font_render_prepare):
* font-mgr.c (Ffc_font_match):
* font-mgr.c (Ffc_font_sort):
* font-mgr.c (finalize_fc_config):
* font-mgr.c (print_fc_config):
* font-mgr.h:
* font-mgr.h (struct fc_pattern):
* font-mgr.h (XFC_PATTERN):
* font-mgr.h (struct fc_config):
* font-mgr.h (XFC_CONFIG):
* frame-gtk.c (allocate_gtk_frame_struct):
* frame-impl.h (struct frame):
* frame-msw.c (mswindows_init_frame_1):
* frame-x.c (allocate_x_frame_struct):
* frame.c (nuke_all_frame_slots):
* frame.c (allocate_frame_core):
* gc.c:
* gc.c (GC_CHECK_NOT_FREE):
* glyphs.c (finalize_image_instance):
* glyphs.c (allocate_image_instance):
* glyphs.c (Fcolorize_image_instance):
* glyphs.c (allocate_glyph):
* glyphs.c (unmap_subwindow_instance_cache_mapper):
* glyphs.c (register_ignored_expose):
* glyphs.h (struct Lisp_Image_Instance):
* glyphs.h (struct Lisp_Glyph):
* glyphs.h (struct glyph_cachel):
* glyphs.h (struct expose_ignore):
* gui.c (allocate_gui_item):
* gui.h (struct Lisp_Gui_Item):
* keymap.c (struct Lisp_Keymap):
* keymap.c (make_keymap):
* lisp.h:
* lisp.h (struct Lisp_String_Direct_Data):
* lisp.h (struct Lisp_String_Indirect_Data):
* lisp.h (struct Lisp_Vector):
* lisp.h (struct Lisp_Bit_Vector):
* lisp.h (DECLARE_INLINE_LISP_BIT_VECTOR):
* lisp.h (struct weak_box):
* lisp.h (struct ephemeron):
* lisp.h (struct weak_list):
* lrecord.h:
* lrecord.h (struct lrecord_implementation):
* lrecord.h (MC_ALLOC_CALL_FINALIZER):
* lrecord.h (struct lcrecord_list):
* lstream.c (finalize_lstream):
* lstream.c (sizeof_lstream):
* lstream.c (Lstream_new):
* lstream.c (Lstream_delete):
* lstream.h (struct lstream):
* marker.c:
* marker.c (finalize_marker):
* marker.c (compute_buffer_marker_usage):
* mule-charset.c:
* mule-charset.c (make_charset):
* mule-charset.c (compute_charset_usage):
* objects-impl.h (struct Lisp_Color_Instance):
* objects-impl.h (struct Lisp_Font_Instance):
* objects-tty-impl.h (struct tty_color_instance_data):
* objects-tty-impl.h (struct tty_font_instance_data):
* objects-tty.c (tty_initialize_color_instance):
* objects-tty.c (tty_initialize_font_instance):
* objects.c (finalize_color_instance):
* objects.c (Fmake_color_instance):
* objects.c (finalize_font_instance):
* objects.c (Fmake_font_instance):
* objects.c (reinit_vars_of_objects):
* opaque.c:
* opaque.c (sizeof_opaque):
* opaque.c (make_opaque_ptr):
* opaque.c (free_opaque_ptr):
* opaque.h:
* opaque.h (Lisp_Opaque):
* opaque.h (Lisp_Opaque_Ptr):
* print.c (printing_unreadable_lcrecord):
* print.c (external_object_printer):
* print.c (debug_p4):
* process.c (finalize_process):
* process.c (make_process_internal):
* procimpl.h (struct Lisp_Process):
* rangetab.c (Fmake_range_table):
* rangetab.c (Fcopy_range_table):
* rangetab.h (struct Lisp_Range_Table):
* scrollbar.c:
* scrollbar.c (create_scrollbar_instance):
* scrollbar.c (compute_scrollbar_instance_usage):
* scrollbar.h (struct scrollbar_instance):
* specifier.c (finalize_specifier):
* specifier.c (sizeof_specifier):
* specifier.c (set_specifier_caching):
* specifier.h (struct Lisp_Specifier):
* specifier.h (struct specifier_caching):
* symeval.h:
* symeval.h (SYMBOL_VALUE_MAGIC_P):
* symeval.h (DEFVAR_SYMVAL_FWD):
* symsinit.h:
* syntax.c (init_buffer_syntax_cache):
* syntax.h (struct syntax_cache):
* toolbar.c:
* toolbar.c (allocate_toolbar_button):
* toolbar.c (update_toolbar_button):
* toolbar.h (struct toolbar_button):
* tooltalk.c (struct Lisp_Tooltalk_Message):
* tooltalk.c (make_tooltalk_message):
* tooltalk.c (struct Lisp_Tooltalk_Pattern):
* tooltalk.c (make_tooltalk_pattern):
* ui-gtk.c:
* ui-gtk.c (allocate_ffi_data):
* ui-gtk.c (emacs_gtk_object_finalizer):
* ui-gtk.c (allocate_emacs_gtk_object_data):
* ui-gtk.c (allocate_emacs_gtk_boxed_data):
* ui-gtk.h:
* window-impl.h (struct window):
* window-impl.h (struct window_mirror):
* window.c (finalize_window):
* window.c (allocate_window):
* window.c (new_window_mirror):
* window.c (mark_window_as_deleted):
* window.c (make_dummy_parent):
* window.c (compute_window_mirror_usage):
* window.c (compute_window_usage):
Overall point of this change and previous ones in this repository:
(1) Introduce new, clearer terminology: everything other than int
or char is a "record" object, which comes in two types: "normal
objects" and "frob-block objects". Fix up all places that
referred to frob-block objects as "simple", "basic", etc.
(2) Provide an advertised interface for doing operations on Lisp
objects, including creating new types, that is clean and
consistent in its naming, uses the above-referenced terms and
avoids referencing "lrecords", "old lcrecords", etc., which should
hide under the surface.
(3) Make the size_in_bytes and finalizer methods take a
Lisp_Object rather than a void * for consistency with other methods.
(4) Separate finalizer method into finalizer and disksaver, so
that normal finalize methods don't have to worry about disksaving.
Other specifics:
(1) Renaming:
LISP_OBJECT_HEADER -> NORMAL_LISP_OBJECT_HEADER
ALLOC_LISP_OBJECT -> ALLOC_NORMAL_LISP_OBJECT
implementation->basic_p -> implementation->frob_block_p
ALLOCATE_FIXED_TYPE_AND_SET_IMPL -> ALLOC_FROB_BLOCK_LISP_OBJECT
*FCCONFIG*, wrap_fcconfig -> *FC_CONFIG*, wrap_fc_config
*FCPATTERN*, wrap_fcpattern -> *FC_PATTERN*, wrap_fc_pattern
(the last two changes make the naming of these macros consistent
with the naming of all other macros, since the objects are named
fc-config and fc-pattern with a hyphen)
(2) Lots of documentation fixes in lrecord.h.
(3) Eliminate macros for copying, freeing, zeroing objects, getting
their storage size. Instead, new functions:
zero_sized_lisp_object()
zero_nonsized_lisp_object()
lisp_object_storage_size()
free_normal_lisp_object()
(copy_lisp_object() already exists)
LISP_OBJECT_FROB_BLOCK_P() (actually a macro)
Eliminated:
free_lrecord()
zero_lrecord()
copy_lrecord()
copy_sized_lrecord()
old_copy_lcrecord()
old_copy_sized_lcrecord()
old_zero_lcrecord()
old_zero_sized_lcrecord()
LISP_OBJECT_STORAGE_SIZE()
COPY_SIZED_LISP_OBJECT()
COPY_SIZED_LCRECORD()
COPY_LISP_OBJECT()
ZERO_LISP_OBJECT()
FREE_LISP_OBJECT()
(4) Catch the remaining places where lrecord stuff was used directly
and use the advertised interface, e.g. alloc_sized_lrecord() ->
ALLOC_SIZED_LISP_OBJECT().
(5) Make certain statically-declared pseudo-objects
(buffer_local_flags, console_local_flags) have their lheader
initialized correctly, so things like copy_lisp_object() can work
on them. Make extent_auxiliary_defaults a proper heap object
Vextent_auxiliary_defaults, and make extent auxiliaries dumpable
so that this object can be dumped. allocate_extent_auxiliary()
now just creates the object, and attach_extent_auxiliary()
creates an extent auxiliary and attaches to an extent, like the
old allocate_extent_auxiliary().
(6) Create EXTENT_AUXILIARY_SLOTS macro, similar to the foo-slots.h
files but in a macro instead of a file. The purpose is to avoid
duplication when iterating over all the slots in an extent auxiliary.
Use it.
(7) In lstream.c, don't zero out object after allocation because
allocation routines take care of this.
(8) In marker.c, fix a mistake in computing marker overhead.
(9) In print.c, clean up printing_unreadable_lcrecord(),
external_object_printer() to avoid lots of ifdef NEW_GC's.
(10) Separate toolbar-button allocation into a separate
allocate_toolbar_button() function for use in the example code
in lrecord.h.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 05 Mar 2010 04:08:17 -0600 |
| parents | b5df3737028a |
| children | 70ed8a0d8da8 |
| rev | line source |
|---|---|
| 771 | 1 /* Header for charsets. |
| 2 Copyright (C) 1992, 1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 4 Copyright (C) 2001, 2002 Ben Wing. | |
| 5 | |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Mule 2.3. Not in FSF. */ | |
| 24 | |
| 25 /* Rewritten by Ben Wing <ben@xemacs.org>. */ | |
| 26 | |
| 27 #ifndef INCLUDED_charset_h_ | |
| 28 #define INCLUDED_charset_h_ | |
| 29 | |
| 30 | |
| 31 | |
| 32 #ifndef MULE | |
| 33 | |
| 34 /************************************************************************/ | |
| 35 /* fake charset defs */ | |
| 36 /************************************************************************/ | |
| 37 | |
| 38 /* used when MULE is not defined, so that Charset-type stuff can still | |
| 39 be done */ | |
| 40 | |
| 41 #define Vcharset_ascii Qnil | |
| 42 | |
| 867 | 43 #define ichar_charset(ch) Vcharset_ascii |
| 44 #define ichar_leading_byte(ch) LEADING_BYTE_ASCII | |
| 45 #define ichar_len(ch) 1 | |
| 46 #define ichar_len_fmt(ch, fmt) 1 | |
| 771 | 47 #define LEADING_BYTE_ASCII 0x80 |
| 48 #define NUM_LEADING_BYTES 1 | |
| 49 #define MIN_LEADING_BYTE 0x80 | |
| 50 #define CHARSETP(cs) 1 | |
| 826 | 51 #define charset_by_leading_byte(lb) Vcharset_ascii |
| 771 | 52 #define XCHARSET_LEADING_BYTE(cs) LEADING_BYTE_ASCII |
| 53 #define XCHARSET_GRAPHIC(cs) -1 | |
| 54 #define XCHARSET_COLUMNS(cs) 1 | |
| 55 #define XCHARSET_DIMENSION(cs) 1 | |
| 867 | 56 #define BREAKUP_ICHAR(ch, charset, byte1, byte2) do { \ |
| 771 | 57 (charset) = Vcharset_ascii; \ |
| 58 (byte1) = (ch); \ | |
| 59 (byte2) = 0; \ | |
| 60 } while (0) | |
| 3659 | 61 #define XCHARSET_CCL_PROGRAM(cs) Qnil |
| 62 #define XCHARSET_NAME(cs) Qascii | |
| 5019 | 63 #define Fget_charset(cs) (cs) |
| 64 #define Fcharset_list() list1 (Vcharset_ascii) | |
| 771 | 65 |
| 66 #else /* MULE */ | |
| 67 | |
| 68 | |
| 69 /************************************************************************/ | |
| 70 /* Definition of leading bytes */ | |
| 71 /************************************************************************/ | |
| 72 | |
| 73 #define MIN_LEADING_BYTE 0x7F | |
| 74 | |
| 75 /** The following are for 1-byte characters in an official charset. **/ | |
| 76 enum LEADING_BYTE_OFFICIAL_1 | |
| 77 { | |
| 78 MIN_LEADING_BYTE_OFFICIAL_1 = 0x80, | |
| 79 /* LEADING_BYTE_LATIN_ISO8859_1 *MUST* be equal to | |
| 80 MIN_LEADING_BYTE_OFFICIAL_1. */ | |
| 81 LEADING_BYTE_LATIN_ISO8859_1 = /* 0x80 Right half of ISO 8859-1 */ | |
| 82 MIN_LEADING_BYTE_OFFICIAL_1, | |
| 83 LEADING_BYTE_LATIN_ISO8859_2, /* 0x81 Right half of ISO 8859-2 */ | |
| 84 LEADING_BYTE_LATIN_ISO8859_3, /* 0x82 Right half of ISO 8859-3 */ | |
| 85 LEADING_BYTE_LATIN_ISO8859_4, /* 0x83 Right half of ISO 8859-4 */ | |
| 86 LEADING_BYTE_THAI_TIS620, /* 0x84 TIS620-2533 */ | |
| 87 LEADING_BYTE_GREEK_ISO8859_7, /* 0x85 Right half of ISO 8859-7 */ | |
| 88 LEADING_BYTE_ARABIC_ISO8859_6, /* 0x86 Right half of ISO 8859-6 */ | |
| 89 LEADING_BYTE_HEBREW_ISO8859_8, /* 0x87 Right half of ISO 8859-8 */ | |
| 90 LEADING_BYTE_KATAKANA_JISX0201, /* 0x88 Right half of JIS X0201-1976 */ | |
| 91 LEADING_BYTE_LATIN_JISX0201, /* 0x89 Left half of JIS X0201-1976 */ | |
| 92 LEADING_BYTE_CYRILLIC_ISO8859_5,/* 0x8A Right half of ISO 8859-5 */ | |
| 93 LEADING_BYTE_LATIN_ISO8859_9, /* 0x8B Right half of ISO 8859-9 */ | |
| 94 LEADING_BYTE_LATIN_ISO8859_15, /* 0x8C Right half of ISO 8859-15 */ | |
| 95 #ifdef ENABLE_COMPOSITE_CHARS | |
| 96 LEADING_BYTE_COMPOSITE, /* 0x8D For a composite character */ | |
| 97 MAX_LEADING_BYTE_OFFICIAL_1 = | |
| 98 LEADING_BYTE_COMPOSITE - 1, | |
| 99 #else | |
| 100 /* Does not need to be the last entry, but simplifies things */ | |
| 101 LEADING_BYTE_COMPOSITE_REPLACEMENT, /* 0x8D Replaces ESC 0 - ESC 4 in a | |
| 102 buffer */ | |
| 103 MAX_LEADING_BYTE_OFFICIAL_1 = | |
| 104 LEADING_BYTE_COMPOSITE_REPLACEMENT, | |
| 105 #endif | |
| 106 /* 0x8E Unused */ | |
| 107 }; | |
| 108 | |
| 109 /* These next 2 + LEADING_BYTE_COMPOSITE need special treatment in a string | |
| 110 and/or character */ | |
| 111 | |
| 112 #define LEADING_BYTE_ASCII 0x7F /* Not used except in arrays | |
| 113 indexed by leading byte */ | |
| 114 #define LEADING_BYTE_CONTROL_1 0x8F /* represent normal 80-9F */ | |
| 115 | |
| 116 /** The following are for 2-byte characters in an official charset. **/ | |
| 117 enum LEADING_BYTE_OFFICIAL_2 | |
| 118 { | |
| 119 MIN_LEADING_BYTE_OFFICIAL_2 = 0x90, | |
| 120 LEADING_BYTE_JAPANESE_JISX0208_1978 = | |
| 121 MIN_LEADING_BYTE_OFFICIAL_2, /* 0x90 Japanese JIS X0208-1978 */ | |
| 122 LEADING_BYTE_CHINESE_GB2312, /* 0x91 Chinese Hanzi GB2312-1980 */ | |
| 123 LEADING_BYTE_JAPANESE_JISX0208, /* 0x92 Japanese JIS X0208-1983 */ | |
| 124 LEADING_BYTE_KOREAN_KSC5601, /* 0x93 Hangul KS C5601-1987 */ | |
| 125 LEADING_BYTE_JAPANESE_JISX0212, /* 0x94 Japanese JIS X0212-1990 */ | |
| 126 LEADING_BYTE_CHINESE_CNS11643_1, /* 0x95 Chinese CNS11643 Set 1 */ | |
| 127 LEADING_BYTE_CHINESE_CNS11643_2, /* 0x96 Chinese CNS11643 Set 2 */ | |
| 128 LEADING_BYTE_CHINESE_BIG5_1, /* 0x97 Big5 Level 1 */ | |
| 129 LEADING_BYTE_CHINESE_BIG5_2, /* 0x98 Big5 Level 2 */ | |
| 130 MAX_LEADING_BYTE_OFFICIAL_2 = | |
| 131 LEADING_BYTE_CHINESE_BIG5_2, | |
| 132 | |
| 133 /* 0x99 unused */ | |
| 134 /* 0x9A unused */ | |
| 135 /* 0x9B unused */ | |
| 136 /* 0x9C unused */ | |
| 137 /* 0x9D unused */ | |
| 138 }; | |
| 139 | |
| 140 | |
| 141 /** The following are for 1- and 2-byte characters in a private charset. **/ | |
| 142 | |
| 143 #define PRE_LEADING_BYTE_PRIVATE_1 0x9E /* 1-byte char-set */ | |
| 144 #define PRE_LEADING_BYTE_PRIVATE_2 0x9F /* 2-byte char-set */ | |
| 145 | |
| 146 #define MIN_LEADING_BYTE_PRIVATE_1 0xA0 | |
| 3496 | 147 #define MAX_LEADING_BYTE_PRIVATE_1 0xC0 |
| 148 #define MIN_LEADING_BYTE_PRIVATE_2 0xC1 | |
| 771 | 149 #define MAX_LEADING_BYTE_PRIVATE_2 0xFF |
| 150 | |
| 151 #define NUM_LEADING_BYTES 129 | |
| 152 | |
| 153 | |
| 154 /************************************************************************/ | |
| 155 /* Operations on leading bytes */ | |
| 156 /************************************************************************/ | |
| 157 | |
| 158 /* Is this leading byte for a private charset? */ | |
| 159 | |
| 826 | 160 #define leading_byte_private_p(lb) ((lb) >= MIN_LEADING_BYTE_PRIVATE_1) |
| 771 | 161 |
| 162 /* Is this a prefix for a private leading byte? */ | |
| 163 | |
| 826 | 164 DECLARE_INLINE_HEADER ( |
| 165 int | |
| 867 | 166 leading_byte_prefix_p (Ibyte lb) |
| 826 | 167 ) |
| 771 | 168 { |
| 169 return (lb == PRE_LEADING_BYTE_PRIVATE_1 || | |
| 170 lb == PRE_LEADING_BYTE_PRIVATE_2); | |
| 171 } | |
| 172 | |
| 173 /* Given a private leading byte, return the leading byte prefix stored | |
| 174 in a string. */ | |
| 175 | |
| 826 | 176 #define private_leading_byte_prefix(lb) \ |
| 771 | 177 ((unsigned int) (lb) < MIN_LEADING_BYTE_PRIVATE_2 ? \ |
| 178 PRE_LEADING_BYTE_PRIVATE_1 : \ | |
| 179 PRE_LEADING_BYTE_PRIVATE_2) | |
| 180 | |
| 181 | |
| 182 /************************************************************************/ | |
| 183 /* Information about a particular character set */ | |
| 184 /************************************************************************/ | |
| 185 | |
| 186 struct Lisp_Charset | |
| 187 { | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5125
diff
changeset
|
188 NORMAL_LISP_OBJECT_HEADER header; |
| 771 | 189 |
| 190 int id; | |
| 191 Lisp_Object name; | |
| 192 Lisp_Object doc_string; | |
| 3659 | 193 Lisp_Object registries; |
| 771 | 194 Lisp_Object short_name; |
| 195 Lisp_Object long_name; | |
| 196 | |
| 197 Lisp_Object reverse_direction_charset; | |
| 198 | |
| 199 Lisp_Object ccl_program; | |
| 200 | |
| 2367 | 201 /* Unicode translation tables. See unicode.c for the format of these |
| 202 tables, and discussion of how they are initialized. | |
| 203 */ | |
| 771 | 204 void *to_unicode_table; |
| 205 void *from_unicode_table; | |
| 206 int from_unicode_levels; | |
| 207 | |
| 2367 | 208 /* Final byte of this character set in ISO2022 designating escape |
| 209 sequence */ | |
| 867 | 210 Ibyte final; |
| 771 | 211 |
| 212 /* Number of bytes (1 - 4) required in the internal representation | |
| 213 for characters in this character set. This is *not* the | |
| 214 same as the dimension of the character set). */ | |
| 215 int rep_bytes; | |
| 216 | |
| 217 /* Number of columns a character in this charset takes up, on TTY | |
| 218 devices. Not used for X devices. */ | |
| 219 int columns; | |
| 220 | |
| 221 /* Direction of this character set */ | |
| 222 int direction; | |
| 223 | |
| 224 /* Type of this character set (94, 96, 94x94, 96x96) */ | |
| 225 int type; | |
| 226 | |
| 227 /* Number of bytes used in encoding of this character set (1 or 2) */ | |
| 228 int dimension; | |
| 229 | |
| 230 /* Number of chars in each dimension (usually 94 or 96) */ | |
| 231 int chars; | |
| 232 | |
| 233 /* Which half of font to be used to display this character set */ | |
| 234 int graphic; | |
| 235 | |
| 3439 | 236 /* If set, this charset should be written out in ISO-2022-based coding |
| 237 systems using the escape sequence for UTF-8, not using our internal | |
| 238 representation and the associated real ISO 2022 designation. */ | |
| 239 unsigned int encode_as_utf_8 :1; | |
| 240 | |
| 771 | 241 /* If set, this is a "temporary" charset created when we encounter |
| 242 an unknown final. This is so that we can successfully compile | |
| 243 and load such files. We allow a real charset to be created on top | |
| 244 of this temporary charset. */ | |
| 245 unsigned int temporary :1; | |
| 246 }; | |
| 247 typedef struct Lisp_Charset Lisp_Charset; | |
| 248 | |
|
5118
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
parents:
4096
diff
changeset
|
249 DECLARE_LISP_OBJECT (charset, Lisp_Charset); |
| 771 | 250 #define XCHARSET(x) XRECORD (x, charset, Lisp_Charset) |
| 251 #define wrap_charset(p) wrap_record (p, charset) | |
| 252 #define CHARSETP(x) RECORDP (x, charset) | |
| 253 #define CHECK_CHARSET(x) CHECK_RECORD (x, charset) | |
| 254 #define CONCHECK_CHARSET(x) CONCHECK_RECORD (x, charset) | |
| 255 | |
| 256 #define CHARSET_TYPE_94 0 /* This charset includes 94 characters. */ | |
| 257 #define CHARSET_TYPE_96 1 /* This charset includes 96 characters. */ | |
| 258 #define CHARSET_TYPE_94X94 2 /* This charset includes 94x94 characters. */ | |
| 259 #define CHARSET_TYPE_96X96 3 /* This charset includes 96x96 characters. */ | |
| 260 | |
| 261 #define CHARSET_LEFT_TO_RIGHT 0 | |
| 262 #define CHARSET_RIGHT_TO_LEFT 1 | |
| 263 | |
| 264 /* Leading byte and id have been regrouped. -- OG */ | |
| 265 #define CHARSET_ID(cs) ((cs)->id) | |
| 867 | 266 #define CHARSET_LEADING_BYTE(cs) ((Ibyte) CHARSET_ID (cs)) |
| 771 | 267 #define CHARSET_NAME(cs) ((cs)->name) |
| 268 #define CHARSET_SHORT_NAME(cs) ((cs)->short_name) | |
| 269 #define CHARSET_LONG_NAME(cs) ((cs)->long_name) | |
| 270 #define CHARSET_REP_BYTES(cs) ((cs)->rep_bytes) | |
| 271 #define CHARSET_COLUMNS(cs) ((cs)->columns) | |
| 272 #define CHARSET_GRAPHIC(cs) ((cs)->graphic) | |
| 3439 | 273 #define CHARSET_ENCODE_AS_UTF_8(cs) ((cs)->encode_as_utf_8) |
| 771 | 274 #define CHARSET_TYPE(cs) ((cs)->type) |
| 275 #define CHARSET_DIRECTION(cs) ((cs)->direction) | |
| 276 #define CHARSET_FINAL(cs) ((cs)->final) | |
| 277 #define CHARSET_DOC_STRING(cs) ((cs)->doc_string) | |
| 3659 | 278 #define CHARSET_REGISTRIES(cs) ((cs)->registries) |
| 771 | 279 #define CHARSET_CCL_PROGRAM(cs) ((cs)->ccl_program) |
| 280 #define CHARSET_DIMENSION(cs) ((cs)->dimension) | |
| 281 #define CHARSET_CHARS(cs) ((cs)->chars) | |
| 282 #define CHARSET_REVERSE_DIRECTION_CHARSET(cs) ((cs)->reverse_direction_charset) | |
| 283 #define CHARSET_TO_UNICODE_TABLE(cs) ((cs)->to_unicode_table) | |
| 284 #define CHARSET_FROM_UNICODE_TABLE(cs) ((cs)->from_unicode_table) | |
| 285 #define CHARSET_FROM_UNICODE_LEVELS(cs) ((cs)->from_unicode_levels) | |
| 286 | |
| 826 | 287 #define CHARSET_PRIVATE_P(cs) leading_byte_private_p (CHARSET_LEADING_BYTE (cs)) |
| 771 | 288 |
| 289 #define XCHARSET_ID(cs) CHARSET_ID (XCHARSET (cs)) | |
| 290 #define XCHARSET_NAME(cs) CHARSET_NAME (XCHARSET (cs)) | |
| 291 #define XCHARSET_SHORT_NAME(cs) CHARSET_SHORT_NAME (XCHARSET (cs)) | |
| 292 #define XCHARSET_LONG_NAME(cs) CHARSET_LONG_NAME (XCHARSET (cs)) | |
| 293 #define XCHARSET_REP_BYTES(cs) CHARSET_REP_BYTES (XCHARSET (cs)) | |
| 294 #define XCHARSET_COLUMNS(cs) CHARSET_COLUMNS (XCHARSET (cs)) | |
| 295 #define XCHARSET_GRAPHIC(cs) CHARSET_GRAPHIC (XCHARSET (cs)) | |
| 3439 | 296 #define XCHARSET_ENCODE_AS_UTF_8(cs) CHARSET_ENCODE_AS_UTF_8 (XCHARSET (cs)) |
| 771 | 297 #define XCHARSET_TYPE(cs) CHARSET_TYPE (XCHARSET (cs)) |
| 298 #define XCHARSET_DIRECTION(cs) CHARSET_DIRECTION (XCHARSET (cs)) | |
| 299 #define XCHARSET_FINAL(cs) CHARSET_FINAL (XCHARSET (cs)) | |
| 300 #define XCHARSET_DOC_STRING(cs) CHARSET_DOC_STRING (XCHARSET (cs)) | |
| 3659 | 301 #define XCHARSET_REGISTRIES(cs) CHARSET_REGISTRIES (XCHARSET (cs)) |
| 771 | 302 #define XCHARSET_LEADING_BYTE(cs) CHARSET_LEADING_BYTE (XCHARSET (cs)) |
| 303 #define XCHARSET_CCL_PROGRAM(cs) CHARSET_CCL_PROGRAM (XCHARSET (cs)) | |
| 304 #define XCHARSET_DIMENSION(cs) CHARSET_DIMENSION (XCHARSET (cs)) | |
| 305 #define XCHARSET_CHARS(cs) CHARSET_CHARS (XCHARSET (cs)) | |
| 3659 | 306 |
| 771 | 307 #define XCHARSET_PRIVATE_P(cs) CHARSET_PRIVATE_P (XCHARSET (cs)) |
| 308 #define XCHARSET_REVERSE_DIRECTION_CHARSET(cs) \ | |
| 309 CHARSET_REVERSE_DIRECTION_CHARSET (XCHARSET (cs)) | |
| 310 #define XCHARSET_TO_UNICODE_TABLE(cs) \ | |
| 311 CHARSET_TO_UNICODE_TABLE (XCHARSET (cs)) | |
| 312 #define XCHARSET_FROM_UNICODE_TABLE(cs) \ | |
| 313 CHARSET_FROM_UNICODE_TABLE (XCHARSET (cs)) | |
| 314 #define XCHARSET_FROM_UNICODE_LEVELS(cs) \ | |
| 315 CHARSET_FROM_UNICODE_LEVELS (XCHARSET (cs)) | |
| 316 | |
| 317 struct charset_lookup | |
| 318 { | |
| 319 /* Table of charsets indexed by leading byte. */ | |
| 320 Lisp_Object charset_by_leading_byte[NUM_LEADING_BYTES]; | |
| 321 | |
| 322 /* Table of charsets indexed by type/final-byte/direction. */ | |
| 323 Lisp_Object charset_by_attributes[4][128][2]; | |
| 867 | 324 Ibyte next_allocated_1_byte_leading_byte; |
| 325 Ibyte next_allocated_2_byte_leading_byte; | |
| 771 | 326 }; |
| 327 | |
| 1111 | 328 extern struct charset_lookup *chlook; |
| 329 | |
| 826 | 330 DECLARE_INLINE_HEADER ( |
| 331 Lisp_Object | |
| 332 charset_by_leading_byte (int lb) | |
| 333 ) | |
| 771 | 334 { |
| 800 | 335 #ifdef ERROR_CHECK_TEXT |
| 771 | 336 /* When error-checking is on, x86 GCC 2.95.2 -O3 miscompiles the |
| 337 following unless we introduce `tem'. */ | |
| 338 int tem = lb; | |
| 800 | 339 text_checking_assert (tem >= MIN_LEADING_BYTE && tem <= 0xFF); |
| 771 | 340 #endif |
| 341 return chlook->charset_by_leading_byte[lb - MIN_LEADING_BYTE]; | |
| 342 } | |
| 343 | |
| 826 | 344 DECLARE_INLINE_HEADER ( |
| 345 Lisp_Object | |
| 346 charset_by_attributes (int type, int final, int dir) | |
| 347 ) | |
| 771 | 348 { |
| 349 type_checking_assert (type < countof (chlook->charset_by_attributes) && | |
| 350 final < countof (chlook->charset_by_attributes[0]) && | |
| 351 dir < countof (chlook->charset_by_attributes[0][0])); | |
| 352 return chlook->charset_by_attributes[type][final][dir]; | |
| 353 } | |
| 354 | |
| 355 | |
| 356 /************************************************************************/ | |
| 357 /* Dealing with characters */ | |
| 358 /************************************************************************/ | |
| 359 | |
| 360 /* The bit fields of character are divided into 3 parts: | |
| 3496 | 361 FIELD1(7bits):FIELD2(7bits):FIELD3(7bits) */ |
| 771 | 362 |
| 3496 | 363 #define ICHAR_FIELD1_MASK (0x7F << 14) |
| 867 | 364 #define ICHAR_FIELD2_MASK (0x7F << 7) |
| 365 #define ICHAR_FIELD3_MASK 0x7F | |
| 771 | 366 |
| 367 /* Macros to access each field of a character code of C. */ | |
| 368 | |
| 867 | 369 #define ichar_field1(c) (((c) & ICHAR_FIELD1_MASK) >> 14) |
| 370 #define ichar_field2(c) (((c) & ICHAR_FIELD2_MASK) >> 7) | |
| 371 #define ichar_field3(c) ((c) & ICHAR_FIELD3_MASK) | |
| 771 | 372 |
| 373 /* Field 1, if non-zero, usually holds a leading byte for a | |
| 374 dimension-2 charset. Field 2, if non-zero, usually holds a leading | |
| 375 byte for a dimension-1 charset. */ | |
| 376 | |
| 377 /* Converting between field values and leading bytes. */ | |
| 378 | |
| 379 #define FIELD2_TO_OFFICIAL_LEADING_BYTE (MIN_LEADING_BYTE_OFFICIAL_1 - 1) | |
| 380 #define FIELD2_TO_PRIVATE_LEADING_BYTE 0x80 | |
| 381 | |
| 382 #define FIELD1_TO_OFFICIAL_LEADING_BYTE (MIN_LEADING_BYTE_OFFICIAL_2 - 1) | |
| 3496 | 383 #define FIELD1_TO_PRIVATE_LEADING_BYTE 0x80 |
| 771 | 384 |
| 385 /* Minimum and maximum allowed values for the fields. */ | |
| 386 | |
| 867 | 387 #define MIN_ICHAR_FIELD2_OFFICIAL \ |
| 771 | 388 (MIN_LEADING_BYTE_OFFICIAL_1 - FIELD2_TO_OFFICIAL_LEADING_BYTE) |
| 867 | 389 #define MAX_ICHAR_FIELD2_OFFICIAL \ |
| 771 | 390 (MAX_LEADING_BYTE_OFFICIAL_1 - FIELD2_TO_OFFICIAL_LEADING_BYTE) |
| 391 | |
| 867 | 392 #define MIN_ICHAR_FIELD1_OFFICIAL \ |
| 771 | 393 (MIN_LEADING_BYTE_OFFICIAL_2 - FIELD1_TO_OFFICIAL_LEADING_BYTE) |
| 867 | 394 #define MAX_ICHAR_FIELD1_OFFICIAL \ |
| 771 | 395 (MAX_LEADING_BYTE_OFFICIAL_2 - FIELD1_TO_OFFICIAL_LEADING_BYTE) |
| 396 | |
| 867 | 397 #define MIN_ICHAR_FIELD2_PRIVATE \ |
| 771 | 398 (MIN_LEADING_BYTE_PRIVATE_1 - FIELD2_TO_PRIVATE_LEADING_BYTE) |
| 867 | 399 #define MAX_ICHAR_FIELD2_PRIVATE \ |
| 771 | 400 (MAX_LEADING_BYTE_PRIVATE_1 - FIELD2_TO_PRIVATE_LEADING_BYTE) |
| 401 | |
| 867 | 402 #define MIN_ICHAR_FIELD1_PRIVATE \ |
| 771 | 403 (MIN_LEADING_BYTE_PRIVATE_2 - FIELD1_TO_PRIVATE_LEADING_BYTE) |
| 867 | 404 #define MAX_ICHAR_FIELD1_PRIVATE \ |
| 771 | 405 (MAX_LEADING_BYTE_PRIVATE_2 - FIELD1_TO_PRIVATE_LEADING_BYTE) |
| 406 | |
| 407 /* Minimum character code of each <type> character. */ | |
| 408 | |
| 867 | 409 #define MIN_CHAR_OFFICIAL_TYPE9N (MIN_ICHAR_FIELD2_OFFICIAL << 7) |
| 410 #define MIN_CHAR_PRIVATE_TYPE9N (MIN_ICHAR_FIELD2_PRIVATE << 7) | |
| 411 #define MIN_CHAR_OFFICIAL_TYPE9NX9N (MIN_ICHAR_FIELD1_OFFICIAL << 14) | |
| 412 #define MIN_CHAR_PRIVATE_TYPE9NX9N (MIN_ICHAR_FIELD1_PRIVATE << 14) | |
| 3496 | 413 #define MIN_CHAR_COMPOSITION (0x7F << 14) |
| 771 | 414 |
| 415 /* Leading byte of a character. | |
| 416 | |
| 417 NOTE: This takes advantage of the fact that | |
| 418 FIELD2_TO_OFFICIAL_LEADING_BYTE and | |
| 419 FIELD2_TO_PRIVATE_LEADING_BYTE are the same. | |
| 420 */ | |
| 421 | |
| 826 | 422 DECLARE_INLINE_HEADER ( |
| 867 | 423 Ibyte |
| 424 ichar_leading_byte (Ichar c) | |
| 826 | 425 ) |
| 771 | 426 { |
| 867 | 427 if (ichar_ascii_p (c)) |
| 771 | 428 return LEADING_BYTE_ASCII; |
| 429 else if (c < 0xA0) | |
| 430 return LEADING_BYTE_CONTROL_1; | |
| 431 else if (c < MIN_CHAR_OFFICIAL_TYPE9NX9N) | |
| 867 | 432 return ichar_field2 (c) + FIELD2_TO_OFFICIAL_LEADING_BYTE; |
| 771 | 433 else if (c < MIN_CHAR_PRIVATE_TYPE9NX9N) |
| 867 | 434 return ichar_field1 (c) + FIELD1_TO_OFFICIAL_LEADING_BYTE; |
| 771 | 435 else if (c < MIN_CHAR_COMPOSITION) |
| 867 | 436 return ichar_field1 (c) + FIELD1_TO_PRIVATE_LEADING_BYTE; |
| 771 | 437 else |
| 438 { | |
| 439 #ifdef ENABLE_COMPOSITE_CHARS | |
| 440 return LEADING_BYTE_COMPOSITE; | |
| 441 #else | |
| 2500 | 442 ABORT(); |
| 771 | 443 return 0; |
| 444 #endif /* ENABLE_COMPOSITE_CHARS */ | |
| 445 } | |
| 446 } | |
| 447 | |
| 826 | 448 DECLARE_INLINE_HEADER ( |
| 449 Bytecount | |
| 867 | 450 ichar_len (Ichar c) |
| 826 | 451 ) |
| 452 { | |
| 867 | 453 if (ichar_ascii_p (c)) |
| 826 | 454 return 1; |
| 455 else if (c < MIN_CHAR_OFFICIAL_TYPE9NX9N) | |
| 456 return 2; | |
| 457 else if (c < MIN_CHAR_PRIVATE_TYPE9NX9N) | |
| 458 return 3; /* dimension-2 official or dimension-1 private */ | |
| 459 else if (c < MIN_CHAR_COMPOSITION) | |
| 460 return 4; | |
| 461 else | |
| 462 { | |
| 463 #ifdef ENABLE_COMPOSITE_CHARS | |
| 464 #error Not yet implemented | |
| 465 #else | |
| 2500 | 466 ABORT(); |
| 826 | 467 return 0; |
| 468 #endif /* ENABLE_COMPOSITE_CHARS */ | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 DECLARE_INLINE_HEADER ( | |
| 473 Bytecount | |
| 867 | 474 ichar_len_fmt (Ichar c, Internal_Format fmt) |
| 826 | 475 ) |
| 476 { | |
| 477 switch (fmt) | |
| 478 { | |
| 479 case FORMAT_DEFAULT: | |
| 867 | 480 return ichar_len (c); |
| 826 | 481 case FORMAT_16_BIT_FIXED: |
| 482 return 2; | |
| 483 case FORMAT_32_BIT_FIXED: | |
| 484 return 4; | |
| 485 default: | |
| 486 text_checking_assert (fmt == FORMAT_8_BIT_FIXED); | |
| 487 return 1; | |
| 488 } | |
| 489 } | |
| 490 | |
| 867 | 491 #define ichar_charset(c) charset_by_leading_byte (ichar_leading_byte (c)) |
| 771 | 492 |
| 493 /* Return a character whose charset is CHARSET and position-codes are C1 | |
| 494 and C2. TYPE9N character ignores C2. (For typical charsets, i.e. not | |
| 495 ASCII, Control-1 or Composite, C1 and C2 will be in the range of 32 to | |
| 496 127 or 33 to 126. See `make-char'.) | |
| 497 | |
| 498 NOTE: This takes advantage of the fact that | |
| 499 FIELD2_TO_OFFICIAL_LEADING_BYTE and | |
| 500 FIELD2_TO_PRIVATE_LEADING_BYTE are the same. | |
| 501 */ | |
| 502 | |
| 826 | 503 DECLARE_INLINE_HEADER ( |
| 867 | 504 Ichar |
| 505 make_ichar (Lisp_Object charset, int c1, int c2) | |
| 826 | 506 ) |
| 771 | 507 { |
| 867 | 508 Ichar retval; |
| 771 | 509 if (EQ (charset, Vcharset_ascii)) |
| 826 | 510 retval = c1; |
| 771 | 511 else if (EQ (charset, Vcharset_control_1)) |
| 826 | 512 retval = c1 | 0x80; |
| 771 | 513 #ifdef ENABLE_COMPOSITE_CHARS |
| 514 else if (EQ (charset, Vcharset_composite)) | |
| 826 | 515 retval = (0x1F << 14) | ((c1) << 7) | (c2); |
| 771 | 516 #endif |
| 517 else if (XCHARSET_DIMENSION (charset) == 1) | |
| 826 | 518 retval = ((XCHARSET_LEADING_BYTE (charset) - |
| 519 FIELD2_TO_OFFICIAL_LEADING_BYTE) << 7) | (c1); | |
| 771 | 520 else if (!XCHARSET_PRIVATE_P (charset)) |
| 826 | 521 retval = ((XCHARSET_LEADING_BYTE (charset) - |
| 522 FIELD1_TO_OFFICIAL_LEADING_BYTE) << 14) | ((c1) << 7) | (c2); | |
| 771 | 523 else |
| 826 | 524 retval = ((XCHARSET_LEADING_BYTE (charset) - |
| 525 FIELD1_TO_PRIVATE_LEADING_BYTE) << 14) | ((c1) << 7) | (c2); | |
| 867 | 526 text_checking_assert (valid_ichar_p (retval)); |
| 826 | 527 return retval; |
| 771 | 528 } |
| 529 | |
| 867 | 530 /* BREAKUP_ICHAR_1_UNSAFE assumes that the charset has already been |
| 771 | 531 calculated, and just computes c1 and c2. |
| 532 | |
| 867 | 533 BREAKUP_ICHAR also computes and stores the charset. */ |
| 771 | 534 |
| 867 | 535 #define BREAKUP_ICHAR_1_UNSAFE(c, charset, c1, c2) \ |
| 771 | 536 XCHARSET_DIMENSION (charset) == 1 \ |
| 867 | 537 ? ((c1) = ichar_field3 (c), (c2) = 0) \ |
| 538 : ((c1) = ichar_field2 (c), \ | |
| 539 (c2) = ichar_field3 (c)) | |
| 771 | 540 |
| 826 | 541 DECLARE_INLINE_HEADER ( |
| 542 void | |
| 867 | 543 breakup_ichar_1 (Ichar c, Lisp_Object *charset, int *c1, int *c2) |
| 826 | 544 ) |
| 771 | 545 { |
| 867 | 546 text_checking_assert (valid_ichar_p (c)); |
| 547 *charset = ichar_charset (c); | |
| 548 BREAKUP_ICHAR_1_UNSAFE (c, *charset, *c1, *c2); | |
| 771 | 549 } |
| 550 | |
| 867 | 551 /* BREAKUP_ICHAR separates an Ichar into its components. The charset of |
| 771 | 552 character C is set to CHARSET, and the position-codes of C are set to C1 |
| 553 and C2. C2 of TYPE9N character is 0. */ | |
| 554 | |
| 867 | 555 #define BREAKUP_ICHAR(c, charset, c1, c2) \ |
| 556 breakup_ichar_1 (c, &(charset), &(c1), &(c2)) | |
| 771 | 557 |
| 788 | 558 void get_charset_limits (Lisp_Object charset, int *low, int *high); |
| 867 | 559 int ichar_to_unicode (Ichar chr); |
| 788 | 560 |
| 3439 | 561 EXFUN (Fcharset_name, 1); |
| 562 | |
| 771 | 563 #endif /* MULE */ |
| 564 | |
| 3439 | 565 /* ISO 10646 UTF-16, UCS-4, UTF-8, UTF-7, etc. */ |
| 566 | |
| 567 enum unicode_type | |
| 568 { | |
| 569 UNICODE_UTF_16, | |
| 570 UNICODE_UTF_8, | |
| 571 UNICODE_UTF_7, | |
| 4096 | 572 UNICODE_UCS_4, |
| 573 UNICODE_UTF_32 | |
| 3439 | 574 }; |
| 575 | |
| 576 void encode_unicode_char (Lisp_Object USED_IF_MULE (charset), int h, | |
| 577 int USED_IF_MULE (l), unsigned_char_dynarr *dst, | |
| 4096 | 578 enum unicode_type type, unsigned int little_endian, |
| 579 int write_error_characters_as_such); | |
| 580 | |
| 581 #define UNICODE_ERROR_OCTET_RANGE_START 0x200000 | |
| 582 | |
| 583 #define valid_utf_16_first_surrogate(ch) (((ch) & 0xFC00) == 0xD800) | |
| 584 #define valid_utf_16_last_surrogate(ch) (((ch) & 0xFC00) == 0xDC00) | |
| 585 #define valid_utf_16_surrogate(ch) (((ch) & 0xF800) == 0xD800) | |
| 3439 | 586 |
| 3676 | 587 void set_charset_registries(Lisp_Object charset, Lisp_Object registries); |
| 588 | |
| 3439 | 589 EXFUN (Funicode_to_char, 2); |
| 590 EXFUN (Fchar_to_unicode, 1); | |
| 591 | |
| 771 | 592 #endif /* INCLUDED_charset_h_ */ |