FUNCTIONS

1. main
2. usage
3. dump_char

   1 /* ekdump.c  - dump eKanji font in ASCII art form.
   2  * by Hirotsugu Kakugawa
   3  * 
   4  *  Copyright (C) 1999  Hirotsugu Kakugawa. All rights reserved. 
   5  *  See "COPYING" for distribution of this software. 
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21 
  22 
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <fcntl.h>
  26 
  27 #define PIXEL_SIZE      24
  28 #define DOT_FOREGROUND  '*'
  29 #define DOT_BACKGROUND  '.'
  30 
  31 int   pixel_size = PIXEL_SIZE;
  32 char  dot_fg = DOT_FOREGROUND;
  33 char  dot_bg = DOT_BACKGROUND;
  34 
  35 
  36 void  usage(void);
  37 void  dump_char(long ch, unsigned char *buff);
  38 
  39 
  40 int 
  41 main(int argc, char** argv)
     /* [<][>][^][v][top][bottom][index][help] */
  42 {
  43   unsigned char  buff[24*(24/8)];
  44   int   fd, dsize, need_close;
  45   long  ch;
  46 
  47   argc--; argv++;
  48 
  49   while ((argc > 0) && (argv[0][0] == '-')){
  50     if (strcmp(argv[0], "-24") == 0){
  51       pixel_size = 24;
  52     } else if (strcmp(argv[0], "-16") == 0){
  53       pixel_size = 16;
  54     } else if (strcmp(argv[0], "-fg") == 0){
  55       argc--; argv++;
  56       dot_fg = argv[0][0];
  57     } else if (strcmp(argv[0], "-bg") == 0){
  58       argc--; argv++;
  59       dot_bg = argv[0][0];
  60     } else if ((strcmp(argv[0], "-h") == 0)
  61                || (strcmp(argv[0], "-help") == 0)
  62                || (strcmp(argv[0], "--help") == 0) ){
usage();
  64     }
  65     argc--; argv++;
  66   }
  67   
  68   dsize = pixel_size * ((pixel_size + 7) / 8);
  69 
  70   if (argc > 0){
  71     need_close = 1;
  72     if ((fd = open(argv[0], O_RDONLY)) < 0){
  73       fprintf(stderr, "Can't open %s\n", argv[0]);
  74       exit(0);
  75     }
  76     argc--; argv++;
  77   } else {
  78     need_close = 0;
  79     fd = 0;
  80   }
  81 
  82   if (argc > 0){
  83     while (argc > 0){
  84       sscanf(argv[0], "%li", &ch);
  85       if (ch < 1){
  86         fprintf(stderr, "No such character: %s\n", argv[0]);
  87         continue;
  88       }
  89       lseek(fd, (ch-1) * dsize, SEEK_SET);
  90       if (read(fd, buff, dsize) > 0){
dump_char(ch, buff);
  92       } else {
  93         fprintf(stderr, "No such character: %s\n", argv[0]);
  94       }
  95       argc--; argv++;
  96     }
  97   } else {
  98     ch = 1;
  99     while (read(fd, buff, dsize) > 0){
dump_char(ch, buff);
 101       ch++;
 102     }
 103   }
 104 
 105   if (need_close == 1){
 106     close(fd);
 107   }
 108 
 109   return 0;
 110 }
 111 
 112 
 113 void
usage(void)
     /* [<][>][^][v][top][bottom][index][help] */
 115 {
 116 
 117   fprintf(stderr, "ekdump  - dump eKanji font in ASCII art form.\n");
 118   fprintf(stderr, "Usage: ekdump [option] [font_file [code...]]\n");
 119   fprintf(stderr, " options:\n");
 120   fprintf(stderr, "  -fg C  Foreground character [default: %c]\n",
 121           DOT_FOREGROUND);
 122   fprintf(stderr, "  -bg C  Background character [default: %c]\n",
 123           DOT_BACKGROUND);
 124   fprintf(stderr, "  -24    Dot size of the font file 24-dot (default)\n");
 125   fprintf(stderr, "  -16    Dot size of the font file 16-dot\n");
 126   fprintf(stderr, "  -help  Print help.\n");
 127   fprintf(stderr, "If character codes are not given, all characters\n");
 128   fprintf(stderr, "are dumped in a font file. If font file name is\n");
 129   fprintf(stderr, "not given, ekdump reads font file data from\n");
 130   fprintf(stderr, "standard input and all characters are dumped\n");
 131   fprintf(stderr, "in the input stream.\n");
 132   exit(0);
 133 }
 134 
 135 void
dump_char(long ch, unsigned char *buff)
     /* [<][>][^][v][top][bottom][index][help] */
 137 {
 138   int  wb, i, j;
 139   static unsigned char  bits[] = { 0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01 };
 140 
 141   printf("Code %06d (0x%06x, Row %d Cel %d)\n", 
 142          ch, ch, (ch-1)/94+1, (ch-1)%94 + 1);
 143 
 144   wb = (pixel_size + 7) / 8; 
 145   for (i = 0; i < pixel_size; i++){
 146     for (j = 0; j < pixel_size; j++){
 147       if ((buff[i*wb + (j/8)] & bits[j%8]) != 0){
 148         putchar(dot_fg);
 149       } else {
 150         putchar(dot_bg);
 151       }
 152     }
 153     putchar('\n');
 154   }
 155   putchar('\n');
 156 }
 157 
 158 
 159 /*EOF*/