pc-tools/fontgen/src/charset7.h

   1 /*
   2    Copyright (c) 1992 - 1994 Heinz W. Werntges.  All rights reserved.
   3    Parts Copyright (c) 1999  Martin Kroeker  All rights reserved.
   4
   5    Distributed by Free Software Foundation, Inc.
   6
   7 This file is part of HP2xx.
   8
   9 HP2xx is distributed in the hope that it will be useful, but
  10 WITHOUT ANY WARRANTY.  No author or distributor accepts responsibility
  11 to anyone for the consequences of using it or for whether it serves any
  12 particular purpose or works at all, unless he says so in writing.  Refer
  13 to the GNU General Public License, Version 2 or later, for full details.
  14
  15 Everyone is granted permission to copy, modify and redistribute
  16 HP2xx, but only under the conditions described in the GNU General Public
  17 License.  A copy of this license is supposed to have been
  18 given to you along with HP2xx so you can know your rights and
  19 responsibilities.  It should be in a file named COPYING.  Among other
  20 things, the copyright notice and this notice must be preserved on all
  21 copies.
  22
  23 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  24 */
  25 /** charset7.h                    HP-GL character set 7, Roman Extensions
  26  **                                MK February 1999
  27  **/
  28 /**
  29  ** This file defines the HP Roman8 character set(#7) by elementary
  30  ** "draw" & "move" commands. The format is a very compact one from
  31  ** the old days where every byte was still appreciated.
  32  **
  33  ** A font or character set is an array of strings. Each character
  34  ** corresponds to one of these strings, which is addressed by its ASCII code.
  35  **
  36  ** A character is a (NULL-terminated) string of bytes. Each byte
  37  ** codes for a draw or move action according to the code below:
  38  **
  39  **     Bit:    7 6 5 4 3 2 1 0
  40  **             p x x x y y y y
  41  **
  42  **     p:      Plot flag. If set, "draw to" new point, else "move to" it.
  43  **     xxx:    3-bit unsigned integer  (0...7). X coordinate of new point.
  44  **     yyyy:   4-bit unsigned integer (0..15). Y coordinate of new point.
  45  **
  46  ** The baseline is y = 4 instead of y = 0, so characters with parts
  47  ** below it can be drawn properly without a need for sign bits.
  48  ** Function "code_to_ucoord()" transforms these coordinates into
  49  ** actual user coordinates.
  50  **
  51  ** Example:    code for character 'L': "\032\224\324" translates to:
  52  **             moveto(1,10); drawto(1,4); drawto(5,4);
  53  **
  54  ** From the example you can conclude that the font below essentially is
  55  ** defined on a 5x7 grid:
  56  **
  57  **             0 1 2 3 4 5 6 7
  58  **     15      . . . . . . . .         . : unused
  59  **     14      . . . . . . . .         * : always used
  60  **     13      . . . . . . . .         o : sometimes used
  61  **     12      . . . . . . . .
  62  **     11      . . . . . . . .
  63  **     10      o * * * * * . .
  64  **      9      o * * * * * . .
  65  **      8      o * * * * * . .
  66  **      7      o * * * * * . .
  67  **      6      o * * * * * . .
  68  **      5      o * * * * * . .
  69  **      4      o * * * * * . .
  70  **      3      o o o o o o . .
  71  **      2      o o o o o o . .
  72  **      1      o o o o o o . .
  73  **      0      o o o o o o . .
  74  **/
  75
  76
  77 /**
  78  ** The following array of strings contains the basic character set (set 0).
  79  **
  80  ** NOTE: A nice way to add a new charset would be, e. g., to introduce a
  81  ** ``charset1[]'' as the "alternate" charset and implement the HP-GL
  82  ** commands needed for switching from one to the other.
  83  **/
  84
  85 char *charset7[128] = {
  86         /* 0x00 ... 0x1f        */
  87
  88 /**
  89  ** Some control codes are valid in HPGL. These are handled elsewhere
  90  ** in a font-independent manner, so following codes are dummies:
  91  **/
  92         "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
  93         "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
  94
  95 /**
  96  ** Unfortunately, some compilers do not process \xNN properly,
  97  ** so I changed all hex codes (\xNN) into octal codes (\NNN),
  98  ** thereby losing readability but gaining portability.
  99  **/
 100
 101         /* 0x20 ... 0x2f        */
 102         "",
 103         "\024\231\252\312\331\324\026\326\055\312",     /* A grave */
 104         "\024\231\252\312\331\324\026\326\032\274\332", /* A circumflex */
 105         "\124\224\232\332\027\307\055\312",     /*E grave */
 106         "\124\224\232\332\027\307\032\274\332", /* E circumflex */
 107         "\124\224\232\332\027\307\054\253\114\313",     /* E diaresis */
 108         "\024\324\064\272\032\332\032\274\332", /* I circumflex */
 109         "\024\324\064\272\032\332\054\253\114\313",     /* I diaresis */
 110         "\052\315",             /* acute */
 111         "\055\312",             /* grave */
 112         "\032\274\332",         /* circumflex */
 113         "\054\253\114\313",     /*diaresis */
 114         "\032\253\311\332",     /*tilde */
 115         "\032\225\244\304\325\332\055\312",     /*U grave */
 116         "\032\225\244\304\325\332\033\275\333", /*U circumflex */
 117         "\131\332\312\270\265\244\224\225\246\304\325\050\310\047\307", /*poundsign */
 118
 119         /* 0x30 ... 0x3f        */
 120         "\033\333",             /*overbar */
 121         "\032\231\266\264\066\331\332\052\315", /*Y acute */
 122         "\022\326\330\030\226\264\052\315",     /*y acute */
 123         "\050\251\272\311\310\267\250", /* degree sign */
 124         "\125\304\244\225\231\252\312\331\064\243",     /*C cedilla */
 125         "\125\304\264\245\247\270\310\327\064\243",     /* c cedilla */
 126         "\024\232\324\332\033\254\312\333",     /* N tilde */
 127         "\024\230\027\250\270\307\304\032\253\311\332", /* n tilde */
 128         "\072\271\070\264",     /*upsidedown exclam */
 129         "\072\271\070\267\247\226\225\244\304\325",     /*upsidedown questionmark */
 130         "\045\226\230\251\311\330\326\305\245\032\251\132\311\024\245\124\305", /* box O */
 131         "\131\332\312\270\265\244\224\225\246\304\325\050\310", /*singlebar poundsign */
 132         "\032\270\264\070\332\050\310\047\307", /* yensign */
 133         "\111\272\251\250\270\307\306\304\263\243\244\105\265\246\250", /* paragraph */
 134         "\131\332\312\270\265\244\224\225\050\310",     /* franc sign */
 135         "\125\304\264\245\247\270\310\327\063\271",     /* cent sign */
 136
 137         /* 0x40 ... 0x4f        */
 138         "\124\244\225\227\250\310\304\051\272\311",     /* a circumflex */
 139         "\026\306\327\310\250\227\225\244\324\051\272\311",     /* e circumflex */
 140         "\044\225\227\250\270\307\305\264\244\051\272\311",     /* o circumflex */
 141         "\030\225\244\304\310\051\272\311",     /* u circumflex */
 142         "\124\244\225\227\250\310\304\051\313", /* a acute */
 143         "\026\306\327\310\250\227\225\244\324\051\313", /* e acute */
 144         "\044\225\227\250\270\307\305\264\244\051\313", /* o acute */
 145         "\030\225\244\304\310\051\313", /* u acute */
 146         "\124\244\225\227\250\310\304\053\311", /* a grave */
 147         "\026\306\327\310\250\227\225\244\324\053\311", /* e grave */
 148         "\044\225\227\250\270\307\305\264\244\053\311", /* o grave */
 149         "\030\225\244\304\310\053\311", /* u grave */
 150         "\124\244\225\227\250\310\304\052\251\112\311", /* a diaresis */
 151         "\026\306\327\310\250\227\225\244\324\052\251\112\311", /* e diaresis */
 152         "\044\225\227\250\270\307\305\264\244\052\251\112\311", /* o diaresis */
 153         "\030\225\244\304\310\052\251\112\311", /* u diaresis */
 154
 155         /* 0x50 ... 0x5f        */
 156         "\024\231\252\312\331\324\026\326\072\253\274\313\272", /* A ring */
 157         "\050\270\264\044\304\051\272\311",     /* i circumflex */
 158         "\025\244\304\325\331\312\252\231\225\331",     /* slashed zero */
 159         "\132\272\264\324\127\247\072\224",     /* AE ligature */
 160         "\124\244\225\227\250\310\304\70\251\272\311\270",      /* a ring */
 161         "\050\270\264\044\304\051\313", /* i acute */
 162         "\044\225\227\250\270\307\305\264\244\024\310", /* o slash */
 163         "\125\304\265\267\310\327\306\246\225\244\265\067\250\227",     /* ae ligature */
 164         "\024\231\252\312\331\324\026\326\054\253\114\313",     /* A diaresis */
 165         "\050\270\264\044\304\053\311", /* i grave */
 166         "\044\225\231\252\312\331\325\304\244\054\253\114\313", /* O diaresis */
 167         "\032\225\244\304\325\332\054\253\114\313",     /* U diaresis */
 168         "\124\224\232\332\027\307\052\315",     /* E acute */
 169         "\050\270\264\044\304\052\251\112\311", /* i diaresis */
 170         "\044\251\272\311\310\267\306\304\264\245",     /* sharp s */
 171         "\044\225\231\252\312\331\325\304\244\033\275\333",     /* O circumflex */
 172
 173         /* 0x60 ... 0x6f        */
 174         "\024\231\252\312\331\324\026\326\052\315",     /* A acute */
 175         "\024\231\252\312\331\324\026\326\033\254\312\333",     /* A tilde */
 176         "\124\244\225\227\250\310\304\033\254\312\333", /* a tilde */
 177         "\024\232\312\331\325\304\224\027\267", /* Eth */
 178         "\044\225\226\247\307\326\325\304\244\032\307\030\272", /* eth */
 179         "\024\324\064\272\032\332\052\315",     /* I acute */
 180         "\024\324\064\272\032\332\055\312",     /* I grave */
 181         "\044\225\231\252\312\331\325\304\244\052\315", /* O acute */
 182         "\044\225\231\252\312\331\325\304\244\055\312", /* O grave */
 183         "\044\225\231\252\312\331\325\304\244\033\254\312\333", /* O tilde */
 184         "\044\225\227\250\270\307\305\264\244\032\253\311\332", /* o tilde */
 185         "\025\244\304\325\326\307\247\230\231\252\312\331\034\272\334", /* czech S */
 186         "\110\250\227\246\266\305\264\224\052\270\312", /* czech s */
 187         "\032\225\244\304\325\332\052\315",     /* U acute */
 188         "\032\231\266\264\066\331\332\054\253\114\313", /* Y diaresis */
 189         "\022\326\330\030\226\264\052\251\112\311",     /* y diaresis */
 190
 191
 192
 193         /* 0x70 ... 0x7f        */
 194         "\024\264\044\252\032\272\046\306\327\310\250", /* Thorn */
 195         "\024\264\044\252\032\272\045\306\310\271\251", /* thorn */
 196         "\067\267",             /*centered dot */
 197         "\024\250\246\265\306\310\106\325",     /* mu */
 198         "\064\272\104\312\252\231\250\270",     /* section */
 199         "\052\272\271\270\250\051\271\047\307\066\245\305\066\264",     /* three quarters */
 200         "\047\307",             /* dash */
 201         "\051\272\270\047\307\066\245\305\066\264",     /* one quarter */
 202         "\051\272\270\047\307\046\266\265\244\264",     /* one half */
 203         "\052\312\310\250\251\311\047\307",     /* _a */
 204         "\051\272\311\270\251\047\307", /* _o */
 205         "\071\227\265\131\267\325",     /* much less than */
 206         "\045\250\330\325\245", /* square */
 207         "\031\267\225\071\327\265",     /* much greater than */
 208         "\065\271\027\327\025\325",     /* plusminus */
 209         ""
 210 };