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259 lines
8.0 KiB
C
259 lines
8.0 KiB
C
/* Copyright (C) 1999-2003, 2005, 2011 Free Software Foundation, Inc.
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This file is part of the GNU LIBICONV Library.
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The GNU LIBICONV Library is free software; you can redistribute it
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and/or modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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The GNU LIBICONV Library is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU LIBICONV Library; see the file COPYING.LIB.
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If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
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Fifth Floor, Boston, MA 02110-1301, USA. */
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/*
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* Generates a table of small strings, used for transliteration, from a table
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* containing lines of the form
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* Unicode <tab> utf-8 replacement <tab> # comment
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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int main (int argc, char *argv[])
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{
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unsigned int data[0x100000];
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int uni2index[0x110000];
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int index;
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if (argc != 1)
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exit(1);
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printf("/*\n");
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printf(" * Copyright (C) 1999-2003 Free Software Foundation, Inc.\n");
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printf(" * This file is part of the GNU LIBICONV Library.\n");
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printf(" *\n");
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printf(" * The GNU LIBICONV Library is free software; you can redistribute it\n");
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printf(" * and/or modify it under the terms of the GNU Library General Public\n");
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printf(" * License as published by the Free Software Foundation; either version 2\n");
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printf(" * of the License, or (at your option) any later version.\n");
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printf(" *\n");
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printf(" * The GNU LIBICONV Library is distributed in the hope that it will be\n");
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printf(" * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
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printf(" * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n");
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printf(" * Library General Public License for more details.\n");
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printf(" *\n");
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printf(" * You should have received a copy of the GNU Library General Public\n");
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printf(" * License along with the GNU LIBICONV Library; see the file COPYING.LIB.\n");
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printf(" * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,\n");
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printf(" * Fifth Floor, Boston, MA 02110-1301, USA.\n");
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printf(" */\n");
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printf("\n");
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printf("/*\n");
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printf(" * Transliteration table\n");
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printf(" */\n");
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printf("\n");
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{
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int c;
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int j;
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for (j = 0; j < 0x110000; j++)
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uni2index[j] = -1;
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index = 0;
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for (;;) {
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c = getc(stdin);
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if (c == EOF)
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break;
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if (c == '#') {
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do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
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continue;
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}
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ungetc(c,stdin);
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if (scanf("%x",&j) != 1)
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exit(1);
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c = getc(stdin);
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if (c != '\t')
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exit(1);
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for (;;) {
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c = getc(stdin);
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if (c == EOF || c == '\n')
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exit(1);
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if (c == '\t')
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break;
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if (uni2index[j] < 0) {
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uni2index[j] = index;
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data[index++] = 0;
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}
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if (c >= 0x80) {
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/* Finish reading an UTF-8 character. */
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if (c < 0xc0)
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exit(1);
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else {
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unsigned int i = (c < 0xe0 ? 2 : c < 0xf0 ? 3 : c < 0xf8 ? 4 : c < 0xfc ? 5 : 6);
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c &= (1 << (8-i)) - 1;
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while (--i > 0) {
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int cc = getc(stdin);
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if (!(cc >= 0x80 && cc < 0xc0))
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exit(1);
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c <<= 6; c |= (cc & 0x3f);
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}
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}
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}
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data[index++] = (unsigned int) c;
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}
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if (uni2index[j] >= 0)
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data[uni2index[j]] = index - uni2index[j] - 1;
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do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
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}
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}
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printf("static const unsigned int translit_data[%d] = {",index);
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{
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int i;
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for (i = 0; i < index; i++) {
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if (data[i] < 32)
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printf("\n %3d,",data[i]);
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else if (data[i] == '\'')
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printf("'\\'',");
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else if (data[i] == '\\')
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printf("'\\\\',");
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else if (data[i] < 127)
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printf(" '%c',",data[i]);
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else if (data[i] < 256)
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printf("0x%02X,",data[i]);
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else
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printf("0x%04X,",data[i]);
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}
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printf("\n};\n");
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}
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printf("\n");
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{
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bool pages[0x1100];
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int line[0x22000];
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int tableno;
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struct { int minline; int maxline; int usecount; const char* suffix; } tables[0x2000];
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int i, j, p, j1, j2, t;
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for (p = 0; p < 0x1100; p++)
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pages[p] = false;
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for (j = 0; j < 0x110000; j++)
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if (uni2index[j] >= 0)
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pages[j>>8] = true;
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for (j1 = 0; j1 < 0x22000; j1++) {
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bool all_invalid = true;
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for (j2 = 0; j2 < 8; j2++) {
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j = 8*j1+j2;
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if (uni2index[j] >= 0)
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all_invalid = false;
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}
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if (all_invalid)
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line[j1] = -1;
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else
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line[j1] = 0;
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}
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tableno = 0;
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for (j1 = 0; j1 < 0x22000; j1++) {
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if (line[j1] >= 0) {
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if (tableno > 0
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&& ((j1 > 0 && line[j1-1] == tableno-1)
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|| ((tables[tableno-1].maxline >> 5) == (j1 >> 5)
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&& j1 - tables[tableno-1].maxline <= 8))) {
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line[j1] = tableno-1;
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tables[tableno-1].maxline = j1;
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} else {
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tableno++;
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line[j1] = tableno-1;
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tables[tableno-1].minline = tables[tableno-1].maxline = j1;
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}
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}
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}
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for (t = 0; t < tableno; t++) {
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tables[t].usecount = 0;
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j1 = 8*tables[t].minline;
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j2 = 8*(tables[t].maxline+1);
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for (j = j1; j < j2; j++)
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if (uni2index[j] >= 0)
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tables[t].usecount++;
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}
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for (t = 0, p = -1, i = 0; t < tableno; t++) {
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if (tables[t].usecount > 1) {
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char* s;
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if (p == tables[t].minline >> 5) {
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s = (char*) malloc(4+1+2+1);
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sprintf(s, "%02x_%d", p, ++i);
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} else {
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p = tables[t].minline >> 5;
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s = (char*) malloc(4+1);
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sprintf(s, "%02x", p);
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}
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tables[t].suffix = s;
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} else
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tables[t].suffix = NULL;
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}
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{
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p = -1;
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for (t = 0; t < tableno; t++)
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if (tables[t].usecount > 1) {
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p = 0;
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printf("static const short translit_page%s[%d] = {\n", tables[t].suffix, 8*(tables[t].maxline-tables[t].minline+1));
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for (j1 = tables[t].minline; j1 <= tables[t].maxline; j1++) {
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if ((j1 % 0x20) == 0 && j1 > tables[t].minline)
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printf(" /* 0x%04x */\n", 8*j1);
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printf(" ");
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for (j2 = 0; j2 < 8; j2++) {
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j = 8*j1+j2;
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printf(" %4d,", uni2index[j]);
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}
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printf(" /* 0x%02x-0x%02x */\n", 8*(j1 % 0x20), 8*(j1 % 0x20)+7);
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}
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printf("};\n");
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}
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if (p >= 0)
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printf("\n");
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}
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printf("#define translit_index(wc) \\\n (");
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for (j1 = 0; j1 < 0x22000;) {
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t = line[j1];
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for (j2 = j1; j2 < 0x22000 && line[j2] == t; j2++);
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if (t >= 0) {
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if (j1 != tables[t].minline) abort();
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if (j2 > tables[t].maxline+1) abort();
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j2 = tables[t].maxline+1;
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}
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if (t == -1) {
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} else {
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if (t >= 0 && tables[t].usecount == 0) abort();
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if (t >= 0 && tables[t].usecount == 1) {
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if (j2 != j1+1) abort();
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for (j = 8*j1; j < 8*j2; j++)
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if (uni2index[j] >= 0) {
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printf("wc == 0x%04x ? %d", j, uni2index[j]);
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break;
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}
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} else {
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if (j1 == 0) {
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printf("wc < 0x%04x", 8*j2);
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} else {
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printf("wc >= 0x%04x && wc < 0x%04x", 8*j1, 8*j2);
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}
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printf(" ? translit_page%s[wc", tables[t].suffix);
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if (tables[t].minline > 0)
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printf("-0x%04x", 8*j1);
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printf("]");
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}
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printf(" : \\\n ");
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}
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j1 = j2;
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}
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printf("-1)\n");
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}
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if (ferror(stdout) || fclose(stdout))
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exit(1);
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exit(0);
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}
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