HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| d427b66a JB |
1 | /* Things for GLYPHS and glyph tables. |
| 2 | Copyright (C) 1990 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GNU Emacs. | |
| 5 | ||
| 6 | GNU Emacs is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 1, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU Emacs is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 19 | ||
| 20 | /* Access the slots of a display-table, according to their purpose. */ | |
| 21 | ||
| 22 | #define DISP_TABLE_SIZE 261 | |
| 23 | #define DISP_TRUNC_GLYPH(dp) ((dp)->contents[256]) | |
| 24 | #define DISP_CONTINUE_GLYPH(dp) ((dp)->contents[257]) | |
| 25 | #define DISP_ESCAPE_GLYPH(dp) ((dp)->contents[258]) | |
| 26 | #define DISP_CTRL_GLYPH(dp) ((dp)->contents[259]) | |
| 82c51511 RS |
27 | #define DISP_INVIS_VECTOR(dp) ((dp)->contents[260]) |
| 28 | #define DISP_CHAR_VECTOR(dp, c) ((dp)->contents[c]) | |
| d427b66a JB |
29 | |
| 30 | extern struct Lisp_Vector *window_display_table (); | |
| 31 | ||
| 32 | /* Display table to use for vectors that don't specify their own. */ | |
| 33 | extern Lisp_Object Vstandard_display_table; | |
| 34 | ||
| 35 | /* Vector of GLYPH definitions. Indexed by GLYPH number, | |
| 36 | the contents are a string which is how to output the GLYPH. */ | |
| 37 | extern Lisp_Object Vglyph_table; | |
| 38 | ||
| 39 | /* Return the current length of the GLYPH table, | |
| 40 | or 0 if the table isn't currently valid. */ | |
| 41 | #define GLYPH_TABLE_LENGTH \ | |
| 42 | ((XTYPE (Vglyph_table) == Lisp_Vector) \ | |
| 43 | ? XVECTOR (Vglyph_table)->size : 0) | |
| 44 | ||
| 45 | /* Return the current base (for indexing) of the GLYPH table, | |
| 46 | or 0 if the table isn't currently valid. */ | |
| 47 | #define GLYPH_TABLE_BASE \ | |
| 48 | ((XTYPE (Vglyph_table) == Lisp_Vector) \ | |
| 49 | ? XVECTOR (Vglyph_table)->contents : 0) | |
| 50 | ||
| 51 | /* Given BASE and LEN returned by the two previous macros, | |
| 52 | return nonzero if the GLYPH code G should be output as a single | |
| 53 | character with code G. Return zero if G has a string in the table. */ | |
| 54 | #define GLYPH_SIMPLE_P(base,len,g) \ | |
| 55 | ((g) >= (len) || XTYPE (base[g]) != Lisp_String) | |
| 56 | ||
| 57 | /* Given BASE and LEN returned by the two previous macros, | |
| 58 | return nonzero if GLYPH code G is aliased to a different code. */ | |
| 59 | #define GLYPH_ALIAS_P(base,len,g) \ | |
| 60 | ((g) < (len) && XTYPE (base[g]) == Lisp_Int) | |
| 61 | ||
| 62 | /* Assuming that GLYPH_SIMPLE_P (BASE, LEN, G) is 1, | |
| 63 | return the alias for G. */ | |
| 64 | #define GLYPH_ALIAS(base, g) XINT (base[g]) | |
| 65 | ||
| 66 | /* Assuming that GLYPH_SIMPLE_P (BASE, LEN, G) is 0, | |
| 67 | return the length and the address of the character-sequence | |
| 68 | used for outputting GLYPH G. */ | |
| 69 | #define GLYPH_LENGTH(base,g) XSTRING (base[g])->size | |
| 70 | #define GLYPH_STRING(base,g) XSTRING (base[g])->data | |
| 71 | ||
| 72 | /* GLYPH for a space character. */ | |
| 73 | ||
| 74 | #define SPACEGLYPH 040 | |
| 75 | #define NULL_GLYPH 00 | |
| 76 | ||
| 77 | #define GLYPH_FROM_CHAR(c) (c) | |
| 78 | ||
| 79 | extern int glyphlen (); | |
| 80 | extern void str_to_glyph_cpy (); | |
| 81 | extern void str_to_glyph_ncpy (); | |
| 82 | extern void glyph_to_str_cpy (); |