/*
* IRC - Internet Relay Chat, include/common.c
* Copyright (C) 1998 Andrea Cocito
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* TABLE GENERATOR
* The following part of code is NOT included in the actual server's
* or library source, it's just used to build the above tables
*
* This should rebuild the actual tables and automatically place them
* into this source file, note that this part of code is for developers
* only, it's supposed to work on both signed and unsigned chars but I
* actually tested it only on signed-char architectures, the code and
* macros actually used by the server instead DO work and have been tested
* on platforms where0 char is both signed or unsigned, this is true as long
* as the <limits.h> macros are set properly and without any need to rebuild
* the tables (wich as said an admin should NEVER do, tables need to be rebuilt
* only when one wants to really change the results or when one has to
* compile on architectures where a char is NOT eight bits [?!], yes
* it all is supposed to work in that case too... but I can't test it
* because I've not found a machine in the world where this happes).
*
* NEVER -f[un]signed-char on gcc since that does NOT fix the named macros
* and you end up in a non-ANSI environment where CHAR_MIN and CHAR_MAX
* are _not_ the real limits of a default 'char' type. This is true for
* both admins and coders.
*
*/
#include "config.h"
#include "ircd_chattr.h"
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
static void zeroTables(void);
static void markString(int macro, const char *s);
static void unMarkString(int macro, const char *s);
static void markRange(int macro, char from, char to);
static void moveMacro(int from, int to);
static void setLowHi(const char firstlow, const char lastlow,
const char firsthi);
char NTL_tolower_tab[1 + CHAR_MAX - CHAR_MIN]; /* 256 bytes */
char NTL_toupper_tab[1 + CHAR_MAX - CHAR_MIN]; /* 256 bytes */
int NTL_char_attrib[1 + CHAR_MAX - CHAR_MIN]; /* 256 ints = 0.5 to 2 kilobytes */
/*
* makeTables()
* Where we make the tables, edit ONLY this to change the tables.
*/
static void makeTables(void)
{
/* Start from a known status */
zeroTables();
/* Make the very elementary sets */
markRange(NTL_LOWER, 'a', 'z');
markString(NTL_LOWER, "{|}~");
markRange(NTL_UPPER, 'A', 'Z');
markString(NTL_UPPER, "[\\]^");
markRange(NTL_DIGIT, '0', '9');
markRange(NTL_CNTRL, '\000', '\037');
markString(NTL_PUNCT, "!\"#$%&'()*+,-./:;<=>?@_`");
markString(NTL_SPACE, "\011\012\013\014\015\040");
/* Make the derived sets,
* WARNING: The order of these calls is important, some depend on
* the results of the previous ones ! */
moveMacro(NTL_LOWER | NTL_UPPER, NTL_ALPHA);
moveMacro(NTL_ALPHA | NTL_DIGIT, NTL_ALNUM);
moveMacro(NTL_ALNUM | NTL_PUNCT, NTL_GRAPH);
moveMacro(NTL_GRAPH, NTL_PRINT);
markString(NTL_PRINT, " ");
markRange(NTL_IRCCH, 0, (char) UCHAR_MAX);
unMarkString(NTL_IRCCH, "\007\040\054\240");
markRange(NTL_IRCCL, '\300', '\326');
markRange(NTL_IRCCL, '\330', '\336');
moveMacro(NTL_ALNUM, NTL_IRCHN);
markString(NTL_IRCHN, "-_."); /* Some DNS might allow '_' per RFC 1033 ! */
moveMacro(NTL_DIGIT, NTL_IRCIP);
markString(NTL_IRCIP, ".");
moveMacro(NTL_DIGIT | NTL_ALPHA, NTL_IRCNK);
markString(NTL_IRCNK, "-_`");
moveMacro(NTL_ALNUM, NTL_IRCUI);
markRange(NTL_IRCUI, '\xe0', '\xf6');
markRange(NTL_IRCUI, '\xf8', '\xfe');
markRange(NTL_IRCUI, '\xc0', '\xd6');
markRange(NTL_IRCUI, '\xd8', '\xde');
markString(NTL_IRCUI, ".-_^'`~");
markString(NTL_EOL, "\n\r");
markString(NTL_CHPFX, "#&");
markString(NTL_KTIME, " ,-0123456789");
/* And finally let's take care of the toLower/toUpper stuff */
setLowHi('a', 'z', 'A');
setLowHi('\xe0', '\xf6', '\xc0');
setLowHi('\xf8', '\xfe', '\xd8');
setLowHi('{', '~', '[');
}
/*
* main()
* This is the main program to be executed for -DMAKETABLES
*/
static void dumphw(int *p, int beg);
static void dumphb(char *p, int beg);
int main(void)
{
int i;
/* Make the tables */
makeTables();
/* Dump them as ANSI C source to be included below */
printf("/*\n * Automatically Generated Tables - DO NOT EDIT\n */\n");
printf("#include <limits.h>\n");
/* NTL_tolower_tab */
printf("const char ToLowerTab_8859_1[] = {\n");
printf("#if (CHAR_MIN<0)\n");
i = (int)((char)SCHAR_MIN);
dumphb(NTL_tolower_tab, i);
printf(" ,\n");
printf("#endif /* (CHAR_MIN<0) */\n");
i = 0;
dumphb(NTL_tolower_tab, i);
printf("#if (!(CHAR_MIN<0))\n");
printf(" ,\n");
i = (int)((char)SCHAR_MIN);
dumphb(NTL_tolower_tab, i);
printf("#endif /* (!(CHAR_MIN<0)) */\n");
printf(" };\n\n");
/* NTL_toupper_tab */
printf("const char ToUpperTab_8859_1[] = {\n");
printf("#if (CHAR_MIN<0)\n");
i = (int)((char)SCHAR_MIN);
dumphb(NTL_toupper_tab, i);
printf(" ,\n");
printf("#endif /* (CHAR_MIN<0) */\n");
i = 0;
dumphb(NTL_toupper_tab, i);
printf("#if (!(CHAR_MIN<0))\n");
printf(" ,\n");
i = (int)((char)SCHAR_MIN);
dumphb(NTL_toupper_tab, i);
printf("#endif /* (!(CHAR_MIN<0)) */\n");
printf(" };\n\n");
/* NTL_char_attrib */
printf("const unsigned int IRCD_CharAttrTab[] = {\n");
printf("#if (CHAR_MIN<0)\n");
i = (int)((char)SCHAR_MIN);
dumphw(NTL_char_attrib, i);
printf(" ,\n");
printf("#endif /* (CHAR_MIN<0) */\n");
i = 0;
dumphw(NTL_char_attrib, i);
printf("#if (!(CHAR_MIN<0))\n");
printf(" ,\n");
i = (int)((char)SCHAR_MIN);
dumphw(NTL_char_attrib, i);
printf("#endif /* (!(CHAR_MIN<0)) */\n");
printf(" };\n\n");
return 0;
}
/* A few utility functions for makeTables() */
static void zeroTables(void)
{
int i;
for (i = CHAR_MIN; i <= CHAR_MAX; i++)
{
NTL_tolower_tab[i - CHAR_MIN] = (char)i; /* Unchanged */
NTL_toupper_tab[i - CHAR_MIN] = (char)i; /* Unchanged */
NTL_char_attrib[i - CHAR_MIN] = 0x0000; /* Nothing */
}
}
static void markString(int macro, const char *s)
{
while (*s)
NTL_char_attrib[*(s++) - CHAR_MIN] |= macro;
}
static void unMarkString(int macro, const char *s)
{
while (*s)
NTL_char_attrib[*(s++) - CHAR_MIN] &= ~macro;
}
static void markRange(int macro, char from, char to)
{
int i;
for (i = CHAR_MIN; i <= CHAR_MAX; i++)
if (((unsigned char)i >= (unsigned char)from)
&& ((unsigned char)i <= (unsigned char)to))
NTL_char_attrib[(char)i - CHAR_MIN] |= macro;
}
static void moveMacro(int from, int to)
{
int i;
for (i = CHAR_MIN; i <= CHAR_MAX; i++)
if (NTL_char_attrib[i - CHAR_MIN] & from)
NTL_char_attrib[i - CHAR_MIN] |= to;
}
static void setLowHi(const char firstlow, const char lastlow,
const char firsthi)
{
int i, j;
for (i = CHAR_MIN; i <= CHAR_MAX; i++)
if (((unsigned char)i >= (unsigned char)firstlow)
&& ((unsigned char)i <= (unsigned char)lastlow))
{
j = ((int)((char)(i + (int)(firsthi - firstlow))));
NTL_tolower_tab[((char)j) - CHAR_MIN] = (char)i;
NTL_toupper_tab[((char)i) - CHAR_MIN] = (char)j;
}
}
/* These are used in main() to actually dump the tables, each function
dumps half table as hex/char constants... */
#define ROWSIZE 8
static void dumphb(char *tbl, int beg)
{
int i, j, k;
char *p = &tbl[beg - CHAR_MIN];
char c;
for (i = 0; i <= SCHAR_MAX; i += ROWSIZE)
{
k = i + ROWSIZE - 1;
if (k > SCHAR_MAX)
k = SCHAR_MAX;
c = (char)(beg + i);
printf("/*");
if ((c > 0) && (c < SCHAR_MAX) && (isprint(c)) && (c != '\\')
&& (c != '\''))
printf(" '%c'", c);
else
printf(" x%02x", ((int)((unsigned char)c)));
c = (char)(beg + k);
printf("-");
if ((c > 0) && (c < SCHAR_MAX) && (isprint(c)) && (c != '\\')
&& (c != '\''))
printf("'%c'", c);
else
printf("x%02x", ((int)((unsigned char)c)));
printf(" */");
for (j = i; j <= k; j++)
{
c = p[j];
if ((c > 0) && (c < SCHAR_MAX) && (isprint(c)) && (c != '\\')
&& (c != '\''))
printf(" '%c'", c);
else
printf(" '\\x%02x'", ((int)((unsigned char)c)));
if (j < SCHAR_MAX)
printf(",");
}
printf("\n");
}
}
static void dumphw(int *tbl, int beg)
{
int i, j, k;
int *p = &tbl[beg - CHAR_MIN];
char c;
for (i = 0; i <= SCHAR_MAX; i += ROWSIZE)
{
k = i + ROWSIZE - 1;
if (k > SCHAR_MAX)
k = SCHAR_MAX;
c = (char)(beg + i);
printf("/*");
if ((c > 0) && (c < SCHAR_MAX) && (isprint(c)) && (c != '\\')
&& (c != '\''))
printf(" '%c'", c);
else
printf(" x%02x", ((int)((unsigned char)c)));
c = (char)(beg + k);
printf("-");
if ((c > 0) && (c < SCHAR_MAX) && (isprint(c)) && (c != '\\')
&& (c != '\''))
printf("'%c'", c);
else
printf("x%02x", ((int)((unsigned char)c)));
printf(" */");
for (j = i; j <= k; j++)
{
printf(" 0x%04x", p[j] & 0xffffffff);
if (j < SCHAR_MAX)
printf(",");
}
printf("\n");
}
}
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