4 * Create arrays for initializing the kernel folded tables (using a hash
5 * table turned out to be to limiting...) Unfortunately we can't simply
6 * preinitialize the tables at compile time since kfree() cannot accept
7 * memory not allocated by kmalloc(), and doing our own memory management
8 * just for this seems like massive overkill.
10 * Copyright (C) 1995-1997 H. Peter Anvin
12 * This program is a part of the Linux kernel, and may be freely
13 * copied under the terms of the GNU General Public License (GPL),
14 * version 2, or at your option any later version.
23 #define MAX_FONTLEN 256
25 typedef unsigned short unicode;
27 static void usage(char *argv0)
29 fprintf(stderr, "Usage: \n"
30 " %s chartable [hashsize] [hashstep] [maxhashlevel]\n", argv0);
34 static int getunicode(char **p0)
38 while (*p == ' ' || *p == '\t')
40 if (*p != 'U' || p[1] != '+' ||
41 !isxdigit(p[2]) || !isxdigit(p[3]) || !isxdigit(p[4]) ||
42 !isxdigit(p[5]) || isxdigit(p[6]))
45 return strtol(p+2,0,16);
48 unicode unitable[MAX_FONTLEN][255];
49 /* Massive overkill, but who cares? */
50 int unicount[MAX_FONTLEN];
52 static void addpair(int fp, int un)
58 /* Check it isn't a duplicate */
60 for ( i = 0 ; i < unicount[fp] ; i++ )
61 if ( unitable[fp][i] == un )
66 if ( unicount[fp] > 254 )
68 fprintf(stderr, "ERROR: Only 255 unicodes/glyph permitted!\n");
72 unitable[fp][unicount[fp]] = un;
76 /* otherwise: ignore */
79 int main(int argc, char *argv[])
86 int fp0, fp1, un0, un1;
89 if ( argc < 2 || argc > 5 )
92 if ( !strcmp(argv[1],"-") )
99 ctbl = fopen(tblname = argv[1], "r");
107 /* For now we assume the default font is always 256 characters. */
110 /* Initialize table */
112 for ( i = 0 ; i < fontlen ; i++ )
115 /* Now we come to the tricky part. Parse the input table. */
117 while ( fgets(buffer, sizeof(buffer), ctbl) != NULL )
119 if ( (p = strchr(buffer, '\n')) != NULL )
122 fprintf(stderr, "%s: Warning: line too long\n", tblname);
128 * <fontpos> <unicode> <unicode> ...
130 * <range> <unicode range>
132 * where <range> ::= <fontpos>-<fontpos>
133 * and <unicode> ::= U+<h><h><h><h>
134 * and <h> ::= <hexadecimal digit>
137 while (*p == ' ' || *p == '\t')
139 if (!*p || *p == '#')
140 continue; /* skip comment or blank line */
142 fp0 = strtol(p, &p1, 0);
145 fprintf(stderr, "Bad input line: %s\n", buffer);
150 while (*p == ' ' || *p == '\t')
155 fp1 = strtol(p, &p1, 0);
158 fprintf(stderr, "Bad input line: %s\n", buffer);
166 if ( fp0 < 0 || fp0 >= fontlen )
169 "%s: Glyph number (0x%x) larger than font length\n",
173 if ( fp1 && (fp1 < fp0 || fp1 >= fontlen) )
176 "%s: Bad end of range (0x%x)\n",
183 /* we have a range; expect the word "idem" or a Unicode range of the
185 while (*p == ' ' || *p == '\t')
187 if (!strncmp(p, "idem", 4))
189 for (i=fp0; i<=fp1; i++)
195 un0 = getunicode(&p);
196 while (*p == ' ' || *p == '\t')
201 "%s: Corresponding to a range of font positions, there should be a Unicode range\n",
206 un1 = getunicode(&p);
207 if (un0 < 0 || un1 < 0)
210 "%s: Bad Unicode range corresponding to font position range 0x%x-0x%x\n",
214 if (un1 - un0 != fp1 - fp0)
217 "%s: Unicode range U+%x-U+%x not of the same length as font position range 0x%x-0x%x\n",
218 tblname, un0, un1, fp0, fp1);
221 for(i=fp0; i<=fp1; i++)
222 addpair(i,un0-fp0+i);
227 /* no range; expect a list of unicode values for a single font position */
229 while ( (un0 = getunicode(&p)) >= 0 )
232 while (*p == ' ' || *p == '\t')
235 fprintf(stderr, "%s: trailing junk (%s) ignored\n", tblname, p);
238 /* Okay, we hit EOF, now output hash table */
243 /* Compute total size of Unicode list */
245 for ( i = 0 ; i < fontlen ; i++ )
250 * Do not edit this file; it was automatically generated by\n\
252 * conmakehash %s > [this file]\n\
256 #include <linux/types.h>\n\
258 u8 dfont_unicount[%d] = \n\
259 {\n\t", argv[1], fontlen);
261 for ( i = 0 ; i < fontlen ; i++ )
263 printf("%3d", unicount[i]);
264 if ( i == fontlen-1 )
266 else if ( i % 8 == 7 )
272 printf("\nu16 dfont_unitable[%d] = \n{\n\t", nuni);
276 for ( i = 0 ; i < nuni ; i++ )
278 while ( nent >= unicount[fp0] )
283 printf("0x%04x", unitable[fp0][nent++]);
286 else if ( i % 8 == 7 )