/* Copyright (C) 1999-2003, 2005 Free Software Foundation, Inc.
This file is part of the GNU LIBICONV Library.
The GNU LIBICONV Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
The GNU LIBICONV Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU LIBICONV Library; see the file COPYING.LIB.
If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
Fifth Floor, Boston, MA 02110-1301, USA. */
/*
* Generates a table of small strings, used for transliteration, from a table
* containing lines of the form
* Unicode <tab> utf-8 replacement <tab> # comment
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
int main (int argc, char *argv[])
{
unsigned int data[0x100000];
int uni2index[0x110000];
int index;
if (argc != 1)
exit(1);
printf("/*\n");
printf(" * Copyright (C) 1999-2003 Free Software Foundation, Inc.\n");
printf(" * This file is part of the GNU LIBICONV Library.\n");
printf(" *\n");
printf(" * The GNU LIBICONV Library is free software; you can redistribute it\n");
printf(" * and/or modify it under the terms of the GNU Library General Public\n");
printf(" * License as published by the Free Software Foundation; either version 2\n");
printf(" * of the License, or (at your option) any later version.\n");
printf(" *\n");
printf(" * The GNU LIBICONV Library is distributed in the hope that it will be\n");
printf(" * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
printf(" * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n");
printf(" * Library General Public License for more details.\n");
printf(" *\n");
printf(" * You should have received a copy of the GNU Library General Public\n");
printf(" * License along with the GNU LIBICONV Library; see the file COPYING.LIB.\n");
printf(" * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,\n");
printf(" * Fifth Floor, Boston, MA 02110-1301, USA.\n");
printf(" */\n");
printf("\n");
printf("/*\n");
printf(" * Transliteration table\n");
printf(" */\n");
printf("\n");
{
int c;
int j;
for (j = 0; j < 0x110000; j++)
uni2index[j] = -1;
index = 0;
for (;;) {
c = getc(stdin);
if (c == EOF)
break;
if (c == '#') {
do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
continue;
}
ungetc(c,stdin);
if (scanf("%x",&j) != 1)
exit(1);
c = getc(stdin);
if (c != '\t')
exit(1);
for (;;) {
c = getc(stdin);
if (c == EOF || c == '\n')
exit(1);
if (c == '\t')
break;
if (uni2index[j] < 0) {
uni2index[j] = index;
data[index++] = 0;
}
if (c >= 0x80) {
/* Finish reading an UTF-8 character. */
if (c < 0xc0)
exit(1);
else {
unsigned int i = (c < 0xe0 ? 2 : c < 0xf0 ? 3 : c < 0xf8 ? 4 : c < 0xfc ? 5 : 6);
c &= (1 << (8-i)) - 1;
while (--i > 0) {
int cc = getc(stdin);
if (!(cc >= 0x80 && cc < 0xc0))
exit(1);
c <<= 6; c |= (cc & 0x3f);
}
}
}
data[index++] = (unsigned int) c;
}
if (uni2index[j] >= 0)
data[uni2index[j]] = index - uni2index[j] - 1;
do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
}
}
printf("static const unsigned int translit_data[%d] = {",index);
{
int i;
for (i = 0; i < index; i++) {
if (data[i] < 32)
printf("\n %3d,",data[i]);
else if (data[i] == '\'')
printf("'\\'',");
else if (data[i] == '\\')
printf("'\\\\',");
else if (data[i] < 127)
printf(" '%c',",data[i]);
else if (data[i] < 256)
printf("0x%02X,",data[i]);
else
printf("0x%04X,",data[i]);
}
printf("\n};\n");
}
printf("\n");
{
bool pages[0x1100];
int line[0x22000];
int tableno;
struct { int minline; int maxline; int usecount; const char* suffix; } tables[0x2000];
int i, j, p, j1, j2, t;
for (p = 0; p < 0x1100; p++)
pages[p] = false;
for (j = 0; j < 0x110000; j++)
if (uni2index[j] >= 0)
pages[j>>8] = true;
for (j1 = 0; j1 < 0x22000; j1++) {
bool all_invalid = true;
for (j2 = 0; j2 < 8; j2++) {
j = 8*j1+j2;
if (uni2index[j] >= 0)
all_invalid = false;
}
if (all_invalid)
line[j1] = -1;
else
line[j1] = 0;
}
tableno = 0;
for (j1 = 0; j1 < 0x22000; j1++) {
if (line[j1] >= 0) {
if (tableno > 0
&& ((j1 > 0 && line[j1-1] == tableno-1)
|| ((tables[tableno-1].maxline >> 5) == (j1 >> 5)
&& j1 - tables[tableno-1].maxline <= 8))) {
line[j1] = tableno-1;
tables[tableno-1].maxline = j1;
} else {
tableno++;
line[j1] = tableno-1;
tables[tableno-1].minline = tables[tableno-1].maxline = j1;
}
}
}
for (t = 0; t < tableno; t++) {
tables[t].usecount = 0;
j1 = 8*tables[t].minline;
j2 = 8*(tables[t].maxline+1);
for (j = j1; j < j2; j++)
if (uni2index[j] >= 0)
tables[t].usecount++;
}
for (t = 0, p = -1, i = 0; t < tableno; t++) {
if (tables[t].usecount > 1) {
char* s;
if (p == tables[t].minline >> 5) {
s = (char*) malloc(5+1);
sprintf(s, "%02x_%d", p, ++i);
} else {
p = tables[t].minline >> 5;
s = (char*) malloc(2+1);
sprintf(s, "%02x", p);
}
tables[t].suffix = s;
} else
tables[t].suffix = NULL;
}
{
p = -1;
for (t = 0; t < tableno; t++)
if (tables[t].usecount > 1) {
p = 0;
printf("static const short translit_page%s[%d] = {\n", tables[t].suffix, 8*(tables[t].maxline-tables[t].minline+1));
for (j1 = tables[t].minline; j1 <= tables[t].maxline; j1++) {
if ((j1 % 0x20) == 0 && j1 > tables[t].minline)
printf(" /* 0x%04x */\n", 8*j1);
printf(" ");
for (j2 = 0; j2 < 8; j2++) {
j = 8*j1+j2;
printf(" %4d,", uni2index[j]);
}
printf(" /* 0x%02x-0x%02x */\n", 8*(j1 % 0x20), 8*(j1 % 0x20)+7);
}
printf("};\n");
}
if (p >= 0)
printf("\n");
}
printf("#define translit_index(wc) \\\n (");
for (j1 = 0; j1 < 0x22000;) {
t = line[j1];
for (j2 = j1; j2 < 0x22000 && line[j2] == t; j2++);
if (t >= 0) {
if (j1 != tables[t].minline) abort();
if (j2 > tables[t].maxline+1) abort();
j2 = tables[t].maxline+1;
}
if (t == -1) {
} else {
if (t >= 0 && tables[t].usecount == 0) abort();
if (t >= 0 && tables[t].usecount == 1) {
if (j2 != j1+1) abort();
for (j = 8*j1; j < 8*j2; j++)
if (uni2index[j] >= 0) {
printf("wc == 0x%04x ? %d", j, uni2index[j]);
break;
}
} else {
if (j1 == 0) {
printf("wc < 0x%04x", 8*j2);
} else {
printf("wc >= 0x%04x && wc < 0x%04x", 8*j1, 8*j2);
}
printf(" ? translit_page%s[wc", tables[t].suffix);
if (tables[t].minline > 0)
printf("-0x%04x", 8*j1);
printf("]");
}
printf(" : \\\n ");
}
j1 = j2;
}
printf("-1)\n");
}
if (ferror(stdout) || fclose(stdout))
exit(1);
exit(0);
}
