aboutsummaryrefslogtreecommitdiff
path: root/scripts/conmakehash.c
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/conmakehash.c')
-rw-r--r--scripts/conmakehash.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/scripts/conmakehash.c b/scripts/conmakehash.c
deleted file mode 100644
index cddd789fe46e..000000000000
--- a/scripts/conmakehash.c
+++ /dev/null
@@ -1,290 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * conmakehash.c
- *
- * Create arrays for initializing the kernel folded tables (using a hash
- * table turned out to be to limiting...) Unfortunately we can't simply
- * preinitialize the tables at compile time since kfree() cannot accept
- * memory not allocated by kmalloc(), and doing our own memory management
- * just for this seems like massive overkill.
- *
- * Copyright (C) 1995-1997 H. Peter Anvin
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sysexits.h>
-#include <string.h>
-#include <ctype.h>
-
-#define MAX_FONTLEN 256
-
-typedef unsigned short unicode;
-
-static void usage(char *argv0)
-{
- fprintf(stderr, "Usage: \n"
- " %s chartable [hashsize] [hashstep] [maxhashlevel]\n", argv0);
- exit(EX_USAGE);
-}
-
-static int getunicode(char **p0)
-{
- char *p = *p0;
-
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p != 'U' || p[1] != '+' ||
- !isxdigit(p[2]) || !isxdigit(p[3]) || !isxdigit(p[4]) ||
- !isxdigit(p[5]) || isxdigit(p[6]))
- return -1;
- *p0 = p+6;
- return strtol(p+2,0,16);
-}
-
-unicode unitable[MAX_FONTLEN][255];
- /* Massive overkill, but who cares? */
-int unicount[MAX_FONTLEN];
-
-static void addpair(int fp, int un)
-{
- int i;
-
- if ( un <= 0xfffe )
- {
- /* Check it isn't a duplicate */
-
- for ( i = 0 ; i < unicount[fp] ; i++ )
- if ( unitable[fp][i] == un )
- return;
-
- /* Add to list */
-
- if ( unicount[fp] > 254 )
- {
- fprintf(stderr, "ERROR: Only 255 unicodes/glyph permitted!\n");
- exit(EX_DATAERR);
- }
-
- unitable[fp][unicount[fp]] = un;
- unicount[fp]++;
- }
-
- /* otherwise: ignore */
-}
-
-int main(int argc, char *argv[])
-{
- FILE *ctbl;
- char *tblname;
- char buffer[65536];
- int fontlen;
- int i, nuni, nent;
- int fp0, fp1, un0, un1;
- char *p, *p1;
-
- if ( argc < 2 || argc > 5 )
- usage(argv[0]);
-
- if ( !strcmp(argv[1],"-") )
- {
- ctbl = stdin;
- tblname = "stdin";
- }
- else
- {
- ctbl = fopen(tblname = argv[1], "r");
- if ( !ctbl )
- {
- perror(tblname);
- exit(EX_NOINPUT);
- }
- }
-
- /* For now we assume the default font is always 256 characters. */
- fontlen = 256;
-
- /* Initialize table */
-
- for ( i = 0 ; i < fontlen ; i++ )
- unicount[i] = 0;
-
- /* Now we come to the tricky part. Parse the input table. */
-
- while ( fgets(buffer, sizeof(buffer), ctbl) != NULL )
- {
- if ( (p = strchr(buffer, '\n')) != NULL )
- *p = '\0';
- else
- fprintf(stderr, "%s: Warning: line too long\n", tblname);
-
- p = buffer;
-
-/*
- * Syntax accepted:
- * <fontpos> <unicode> <unicode> ...
- * <range> idem
- * <range> <unicode range>
- *
- * where <range> ::= <fontpos>-<fontpos>
- * and <unicode> ::= U+<h><h><h><h>
- * and <h> ::= <hexadecimal digit>
- */
-
- while (*p == ' ' || *p == '\t')
- p++;
- if (!*p || *p == '#')
- continue; /* skip comment or blank line */
-
- fp0 = strtol(p, &p1, 0);
- if (p1 == p)
- {
- fprintf(stderr, "Bad input line: %s\n", buffer);
- exit(EX_DATAERR);
- }
- p = p1;
-
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p == '-')
- {
- p++;
- fp1 = strtol(p, &p1, 0);
- if (p1 == p)
- {
- fprintf(stderr, "Bad input line: %s\n", buffer);
- exit(EX_DATAERR);
- }
- p = p1;
- }
- else
- fp1 = 0;
-
- if ( fp0 < 0 || fp0 >= fontlen )
- {
- fprintf(stderr,
- "%s: Glyph number (0x%x) larger than font length\n",
- tblname, fp0);
- exit(EX_DATAERR);
- }
- if ( fp1 && (fp1 < fp0 || fp1 >= fontlen) )
- {
- fprintf(stderr,
- "%s: Bad end of range (0x%x)\n",
- tblname, fp1);
- exit(EX_DATAERR);
- }
-
- if (fp1)
- {
- /* we have a range; expect the word "idem" or a Unicode range of the
- same length */
- while (*p == ' ' || *p == '\t')
- p++;
- if (!strncmp(p, "idem", 4))
- {
- for (i=fp0; i<=fp1; i++)
- addpair(i,i);
- p += 4;
- }
- else
- {
- un0 = getunicode(&p);
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p != '-')
- {
- fprintf(stderr,
-"%s: Corresponding to a range of font positions, there should be a Unicode range\n",
- tblname);
- exit(EX_DATAERR);
- }
- p++;
- un1 = getunicode(&p);
- if (un0 < 0 || un1 < 0)
- {
- fprintf(stderr,
-"%s: Bad Unicode range corresponding to font position range 0x%x-0x%x\n",
- tblname, fp0, fp1);
- exit(EX_DATAERR);
- }
- if (un1 - un0 != fp1 - fp0)
- {
- fprintf(stderr,
-"%s: Unicode range U+%x-U+%x not of the same length as font position range 0x%x-0x%x\n",
- tblname, un0, un1, fp0, fp1);
- exit(EX_DATAERR);
- }
- for(i=fp0; i<=fp1; i++)
- addpair(i,un0-fp0+i);
- }
- }
- else
- {
- /* no range; expect a list of unicode values for a single font position */
-
- while ( (un0 = getunicode(&p)) >= 0 )
- addpair(fp0, un0);
- }
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p && *p != '#')
- fprintf(stderr, "%s: trailing junk (%s) ignored\n", tblname, p);
- }
-
- /* Okay, we hit EOF, now output hash table */
-
- fclose(ctbl);
-
-
- /* Compute total size of Unicode list */
- nuni = 0;
- for ( i = 0 ; i < fontlen ; i++ )
- nuni += unicount[i];
-
- printf("\
-/*\n\
- * Do not edit this file; it was automatically generated by\n\
- *\n\
- * conmakehash %s > [this file]\n\
- *\n\
- */\n\
-\n\
-#include <linux/types.h>\n\
-\n\
-u8 dfont_unicount[%d] = \n\
-{\n\t", argv[1], fontlen);
-
- for ( i = 0 ; i < fontlen ; i++ )
- {
- printf("%3d", unicount[i]);
- if ( i == fontlen-1 )
- printf("\n};\n");
- else if ( i % 8 == 7 )
- printf(",\n\t");
- else
- printf(", ");
- }
-
- printf("\nu16 dfont_unitable[%d] = \n{\n\t", nuni);
-
- fp0 = 0;
- nent = 0;
- for ( i = 0 ; i < nuni ; i++ )
- {
- while ( nent >= unicount[fp0] )
- {
- fp0++;
- nent = 0;
- }
- printf("0x%04x", unitable[fp0][nent++]);
- if ( i == nuni-1 )
- printf("\n};\n");
- else if ( i % 8 == 7 )
- printf(",\n\t");
- else
- printf(", ");
- }
-
- exit(EX_OK);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 06:18:16 +0000