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skia / third_party / libiconv / 6ad5ae562aa163e91ff37e92bf1b5591a87742ee / . / tools / cjk_tab_to_h.c
blob: e726c2c53e15dff09ca9c2eb6b07ce2074f8818a [file] [log] [blame]
/* Copyright (C) 1999-2004, 2006-2007, 2010, 2012, 2016, 2018 Free Software Foundation, Inc.
This file is part of the GNU LIBICONV Tools.
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 3 of the License, 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, see <https://www.gnu.org/licenses/>. */
/*
* Generates a CJK character set table from a .TXT table as found on
* ftp.unicode.org or in the X nls directory.
* Examples:
*
* ./cjk_tab_to_h GB2312.1980-0 gb2312 > gb2312.h < gb2312
* ./cjk_tab_to_h JISX0208.1983-0 jisx0208 > jisx0208.h < jis0208
* ./cjk_tab_to_h KSC5601.1987-0 ksc5601 > ksc5601.h < ksc5601
*
* ./cjk_tab_to_h GB2312.1980-0 gb2312 > gb2312.h < GB2312.TXT
* ./cjk_tab_to_h JISX0208.1983-0 jisx0208 > jisx0208.h < JIS0208.TXT
* ./cjk_tab_to_h JISX0212.1990-0 jisx0212 > jisx0212.h < JIS0212.TXT
* ./cjk_tab_to_h KSC5601.1987-0 ksc5601 > ksc5601.h < KSC5601.TXT
* ./cjk_tab_to_h KSX1001.1992-0 ksc5601 > ksc5601.h < KSX1001.TXT
*
* ./cjk_tab_to_h BIG5 big5 > big5.h < BIG5.TXT
*
* ./cjk_tab_to_h JOHAB johab > johab.h < JOHAB.TXT
*
* ./cjk_tab_to_h JISX0213:2004 jisx0213 > jisx0213.h < JISX0213.TXT
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
typedef struct {
int start;
int end;
} Block;
typedef struct {
int rows; /* number of possible values for the 1st byte */
int cols; /* number of possible values for the 2nd byte */
int (*row_byte) (int row); /* returns the 1st byte value for a given row */
int (*col_byte) (int col); /* returns the 2nd byte value for a given col */
int (*byte_row) (int byte); /* converts a 1st byte value to a row, else -1 */
int (*byte_col) (int byte); /* converts a 2nd byte value to a col, else -1 */
const char* check_row_expr; /* format string for 1st byte value checking */
const char* check_col_expr; /* format string for 2nd byte value checking */
const char* byte_row_expr; /* format string for 1st byte value to row */
const char* byte_col_expr; /* format string for 2nd byte value to col */
int** charset2uni; /* charset2uni[0..rows-1][0..cols-1] is valid */
/* You'll understand the terms "row" and "col" when you buy Ken Lunde's book.
Once a row is fixed, choosing a "col" is the same as choosing a "cell". */
int* charsetpage; /* charsetpage[0..rows]: how large is a page for a row */
int ncharsetblocks;
Block* charsetblocks; /* blocks[0..nblocks-1] */
int* uni2charset; /* uni2charset[0x0000..0xffff] */
int fffd; /* uni representation of the invalid character */
} Encoding;
/*
* Outputs the file title.
*/
static void output_title (const char *charsetname)
{
printf("/*\n");
printf(" * Copyright (C) 1999-2016 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 Lesser 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(" * Lesser General Public License for more details.\n");
printf(" *\n");
printf(" * You should have received a copy of the GNU Lesser General Public\n");
printf(" * License along with the GNU LIBICONV Library; see the file COPYING.LIB.\n");
printf(" * If not, see <https://www.gnu.org/licenses/>.\n");
printf(" */\n");
printf("\n");
printf("/*\n");
printf(" * %s\n", charsetname);
printf(" */\n");
printf("\n");
}
/*
* Reads the charset2uni table from standard input.
*/
static void read_table (Encoding* enc)
{
int row, col, i, i1, i2, c, j;
enc->charset2uni = (int**) malloc(enc->rows*sizeof(int*));
for (row = 0; row < enc->rows; row++)
enc->charset2uni[row] = (int*) malloc(enc->cols*sizeof(int));
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++)
enc->charset2uni[row][col] = 0xfffd;
c = getc(stdin);
ungetc(c,stdin);
if (c == '#') {
/* Read a unicode.org style .TXT file. */
for (;;) {
c = getc(stdin);
if (c == EOF)
break;
if (c == '\n' || c == ' ' || c == '\t')
continue;
if (c == '#') {
do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
continue;
}
ungetc(c,stdin);
if (scanf("0x%x", &j) != 1)
exit(1);
i1 = j >> 8;
i2 = j & 0xff;
row = enc->byte_row(i1);
col = enc->byte_col(i2);
if (row < 0 || col < 0) {
fprintf(stderr, "lost entry for %02x %02x\n", i1, i2);
exit(1);
}
if (scanf(" 0x%x", &enc->charset2uni[row][col]) != 1)
exit(1);
}
} else {
/* Read a table of hexadecimal Unicode values. */
for (i1 = 32; i1 < 132; i1++)
for (i2 = 32; i2 < 132; i2++) {
i = scanf("%x", &j);
if (i == EOF)
goto read_done;
if (i != 1)
exit(1);
if (j < 0 || j == 0xffff)
j = 0xfffd;
if (j != 0xfffd) {
if (enc->byte_row(i1) < 0 || enc->byte_col(i2) < 0) {
fprintf(stderr, "lost entry at %02x %02x\n", i1, i2);
exit (1);
}
enc->charset2uni[enc->byte_row(i1)][enc->byte_col(i2)] = j;
}
}
read_done: ;
}
}
/*
* Determine whether the Unicode range goes outside the BMP.
*/
static bool is_charset2uni_large (Encoding* enc)
{
int row, col;
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++)
if (enc->charset2uni[row][col] >= 0x10000)
return true;
return false;
}
/*
* Compactify the Unicode range by use of an auxiliary table,
* so 16 bits suffice to store each value.
*/
static int compact_large_charset2uni (Encoding* enc, unsigned int **urows, unsigned int *urowshift)
{
unsigned int shift;
for (shift = 8; ; shift--) {
int *upages = (int *) malloc((0x110000>>shift) * sizeof(int));
int i, row, col, nurows;
for (i = 0; i < 0x110000>>shift; i++)
upages[i] = -1;
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++)
upages[enc->charset2uni[row][col] >> shift] = 0;
nurows = 0;
for (i = 0; i < 0x110000>>shift; i++)
if (upages[i] == 0)
nurows++;
/* We want all table entries to fit in an 'unsigned short'. */
if (nurows <= 1<<(16-shift)) {
int** old_charset2uni;
*urows = (unsigned int *) malloc(nurows * sizeof(unsigned int));
*urowshift = shift;
nurows = 0;
for (i = 0; i < 0x110000>>shift; i++)
if (upages[i] == 0) {
upages[i] = nurows;
(*urows)[nurows] = i;
nurows++;
}
old_charset2uni = enc->charset2uni;
enc->charset2uni = (int**) malloc(enc->rows*sizeof(int*));
for (row = 0; row < enc->rows; row++)
enc->charset2uni[row] = (int*) malloc(enc->cols*sizeof(int));
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++) {
int u = old_charset2uni[row][col];
enc->charset2uni[row][col] =
(upages[u >> shift] << shift) | (u & ((1 << shift) - 1));
}
enc->fffd =
(upages[0xfffd >> shift] << shift) | (0xfffd & ((1 << shift) - 1));
return nurows;
}
}
abort();
}
/*
* Computes the charsetpage[0..rows] array.
*/
static void find_charset2uni_pages (Encoding* enc)
{
int row, col;
enc->charsetpage = (int*) malloc((enc->rows+1)*sizeof(int));
for (row = 0; row <= enc->rows; row++)
enc->charsetpage[row] = 0;
for (row = 0; row < enc->rows; row++) {
int used = 0;
for (col = 0; col < enc->cols; col++)
if (enc->charset2uni[row][col] != enc->fffd)
used = col+1;
enc->charsetpage[row] = used;
}
}
/*
* Fills in nblocks and blocks.
*/
static void find_charset2uni_blocks (Encoding* enc)
{
int n, row, lastrow;
enc->charsetblocks = (Block*) malloc(enc->rows*sizeof(Block));
n = 0;
for (row = 0; row < enc->rows; row++)
if (enc->charsetpage[row] > 0 && (row == 0 || enc->charsetpage[row-1] == 0)) {
for (lastrow = row; enc->charsetpage[lastrow+1] > 0; lastrow++);
enc->charsetblocks[n].start = row * enc->cols;
enc->charsetblocks[n].end = lastrow * enc->cols + enc->charsetpage[lastrow];
n++;
}
enc->ncharsetblocks = n;
}
/*
* Outputs the charset to unicode table and function.
*/
static void output_charset2uni (const char* name, Encoding* enc)
{
int nurows, row, col, lastrow, col_max, i, i1_min, i1_max;
bool is_large;
unsigned int* urows;
unsigned int urowshift;
Encoding tmpenc;
is_large = is_charset2uni_large(enc);
if (is_large) {
/* Use a temporary copy of enc. */
tmpenc = *enc;
enc = &tmpenc;
nurows = compact_large_charset2uni(enc,&urows,&urowshift);
} else {
nurows = 0; urows = NULL; urowshift = 0; enc->fffd = 0xfffd;
}
find_charset2uni_pages(enc);
find_charset2uni_blocks(enc);
for (row = 0; row < enc->rows; row++)
if (enc->charsetpage[row] > 0) {
if (row == 0 || enc->charsetpage[row-1] == 0) {
/* Start a new block. */
for (lastrow = row; enc->charsetpage[lastrow+1] > 0; lastrow++);
printf("static const unsigned short %s_2uni_page%02x[%d] = {\n",
name, enc->row_byte(row),
(lastrow-row) * enc->cols + enc->charsetpage[lastrow]);
}
printf(" /""* 0x%02x *""/\n ", enc->row_byte(row));
col_max = (enc->charsetpage[row+1] > 0 ? enc->cols : enc->charsetpage[row]);
for (col = 0; col < col_max; col++) {
printf(" 0x%04x,", enc->charset2uni[row][col]);
if ((col % 8) == 7 && (col+1 < col_max)) printf("\n ");
}
printf("\n");
if (enc->charsetpage[row+1] == 0) {
/* End a block. */
printf("};\n");
}
}
printf("\n");
if (is_large) {
printf("static const ucs4_t %s_2uni_upages[%d] = {\n ", name, nurows);
for (i = 0; i < nurows; i++) {
printf(" 0x%05x,", urows[i] << urowshift);
if ((i % 8) == 7 && (i+1 < nurows)) printf("\n ");
}
printf("\n");
printf("};\n");
printf("\n");
}
printf("static int\n");
printf("%s_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)\n", name);
printf("{\n");
printf(" unsigned char c1 = s[0];\n");
printf(" if (");
for (i = 0; i < enc->ncharsetblocks; i++) {
i1_min = enc->row_byte(enc->charsetblocks[i].start / enc->cols);
i1_max = enc->row_byte((enc->charsetblocks[i].end-1) / enc->cols);
if (i > 0)
printf(" || ");
if (i1_min == i1_max)
printf("(c1 == 0x%02x)", i1_min);
else
printf("(c1 >= 0x%02x && c1 <= 0x%02x)", i1_min, i1_max);
}
printf(") {\n");
printf(" if (n >= 2) {\n");
printf(" unsigned char c2 = s[1];\n");
printf(" if (");
printf(enc->check_col_expr, "c2");
printf(") {\n");
printf(" unsigned int i = %d * (", enc->cols);
printf(enc->byte_row_expr, "c1");
printf(") + (");
printf(enc->byte_col_expr, "c2");
printf(");\n");
printf(" %s wc = 0xfffd;\n", is_large ? "ucs4_t" : "unsigned short");
if (is_large) printf(" unsigned short swc;\n");
for (i = 0; i < enc->ncharsetblocks; i++) {
printf(" ");
if (i > 0)
printf("} else ");
if (i < enc->ncharsetblocks-1)
printf("if (i < %d) ", enc->charsetblocks[i+1].start);
printf("{\n");
printf(" if (i < %d)\n", enc->charsetblocks[i].end);
printf(" %s = ", is_large ? "swc" : "wc");
printf("%s_2uni_page%02x[i", name, enc->row_byte(enc->charsetblocks[i].start / enc->cols));
if (enc->charsetblocks[i].start > 0)
printf("-%d", enc->charsetblocks[i].start);
printf("]");
if (is_large) printf(",\n wc = %s_2uni_upages[swc>>%d] | (swc & 0x%x)", name, urowshift, (1 << urowshift) - 1);
printf(";\n");
}
printf(" }\n");
printf(" if (wc != 0xfffd) {\n");
printf(" *pwc = %swc;\n", is_large ? "" : "(ucs4_t) ");
printf(" return 2;\n");
printf(" }\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" return RET_TOOFEW(0);\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf("}\n");
printf("\n");
}
/*
* Outputs the charset to unicode table and function.
* (Suitable if the mapping function is well defined, i.e. has no holes, and
* is monotonically increasing with small gaps only.)
*/
static void output_charset2uni_noholes_monotonic (const char* name, Encoding* enc)
{
int row, col, lastrow, r, col_max, i, i1_min, i1_max;
/* Choose stepsize so that stepsize*steps_per_row >= enc->cols, and
enc->charset2uni[row][col] - enc->charset2uni[row][col/stepsize*stepsize]
is always < 0x100. */
int steps_per_row = 2;
int stepsize = (enc->cols + steps_per_row-1) / steps_per_row;
find_charset2uni_pages(enc);
find_charset2uni_blocks(enc);
for (row = 0; row < enc->rows; row++)
if (enc->charsetpage[row] > 0) {
if (row == 0 || enc->charsetpage[row-1] == 0) {
/* Start a new block. */
for (lastrow = row; enc->charsetpage[lastrow+1] > 0; lastrow++);
printf("static const unsigned short %s_2uni_main_page%02x[%d] = {\n ",
name, enc->row_byte(row),
steps_per_row*(lastrow-row+1));
for (r = row; r <= lastrow; r++) {
for (i = 0; i < steps_per_row; i++)
printf(" 0x%04x,", enc->charset2uni[r][i*stepsize]);
if (((r-row) % 4) == 3 && (r < lastrow)) printf("\n ");
}
printf("\n");
printf("};\n");
printf("static const unsigned char %s_2uni_page%02x[%d] = {\n",
name, enc->row_byte(row),
(lastrow-row) * enc->cols + enc->charsetpage[lastrow]);
}
printf(" /""* 0x%02x *""/\n ", enc->row_byte(row));
col_max = (enc->charsetpage[row+1] > 0 ? enc->cols : enc->charsetpage[row]);
for (col = 0; col < col_max; col++) {
printf(" 0x%02x,", enc->charset2uni[row][col] - enc->charset2uni[row][col/stepsize*stepsize]);
if ((col % 8) == 7 && (col+1 < col_max)) printf("\n ");
}
printf("\n");
if (enc->charsetpage[row+1] == 0) {
/* End a block. */
printf("};\n");
}
}
printf("\n");
printf("static int\n");
printf("%s_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)\n", name);
printf("{\n");
printf(" unsigned char c1 = s[0];\n");
printf(" if (");
for (i = 0; i < enc->ncharsetblocks; i++) {
i1_min = enc->row_byte(enc->charsetblocks[i].start / enc->cols);
i1_max = enc->row_byte((enc->charsetblocks[i].end-1) / enc->cols);
if (i > 0)
printf(" || ");
if (i1_min == i1_max)
printf("(c1 == 0x%02x)", i1_min);
else
printf("(c1 >= 0x%02x && c1 <= 0x%02x)", i1_min, i1_max);
}
printf(") {\n");
printf(" if (n >= 2) {\n");
printf(" unsigned char c2 = s[1];\n");
printf(" if (");
printf(enc->check_col_expr, "c2");
printf(") {\n");
printf(" unsigned int row = ");
printf(enc->byte_row_expr, "c1");
printf(";\n");
printf(" unsigned int col = ");
printf(enc->byte_col_expr, "c2");
printf(";\n");
printf(" unsigned int i = %d * row + col;\n", enc->cols);
printf(" unsigned short wc = 0xfffd;\n");
for (i = 0; i < enc->ncharsetblocks; i++) {
printf(" ");
if (i > 0)
printf("} else ");
if (i < enc->ncharsetblocks-1)
printf("if (i < %d) ", enc->charsetblocks[i+1].start);
printf("{\n");
printf(" if (i < %d)\n", enc->charsetblocks[i].end);
printf(" wc = %s_2uni_main_page%02x[%d*", name, enc->row_byte(enc->charsetblocks[i].start / enc->cols), steps_per_row);
if (enc->charsetblocks[i].start > 0)
printf("(row-%d)", enc->charsetblocks[i].start / enc->cols);
else
printf("row");
printf("+");
if (steps_per_row == 2)
printf("(col>=%d?1:0)", stepsize);
else
printf("col/%d", stepsize);
printf("] + %s_2uni_page%02x[i", name, enc->row_byte(enc->charsetblocks[i].start / enc->cols));
if (enc->charsetblocks[i].start > 0)
printf("-%d", enc->charsetblocks[i].start);
printf("];\n");
}
printf(" }\n");
printf(" if (wc != 0xfffd) {\n");
printf(" *pwc = (ucs4_t) wc;\n");
printf(" return 2;\n");
printf(" }\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" return RET_TOOFEW(0);\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf("}\n");
printf("\n");
}
/*
* Computes the uni2charset[0x0000..0x2ffff] array.
*/
static void invert (Encoding* enc)
{
int row, col, j;
enc->uni2charset = (int*) malloc(0x30000*sizeof(int));
for (j = 0; j < 0x30000; j++)
enc->uni2charset[j] = 0;
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++) {
j = enc->charset2uni[row][col];
if (j != 0xfffd)
enc->uni2charset[j] = 0x100 * enc->row_byte(row) + enc->col_byte(col);
}
}
/*
* Outputs the unicode to charset table and function, using a linear array.
* (Suitable if the table is dense.)
*/
static void output_uni2charset_dense (const char* name, Encoding* enc)
{
/* Like in 8bit_tab_to_h.c */
bool pages[0x300];
int line[0x6000];
int tableno;
struct { int minline; int maxline; int usecount; } tables[0x6000];
bool first;
int row, col, j, p, j1, j2, t;
for (p = 0; p < 0x300; p++)
pages[p] = false;
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++) {
j = enc->charset2uni[row][col];
if (j != 0xfffd)
pages[j>>8] = true;
}
for (j1 = 0; j1 < 0x6000; j1++) {
bool all_invalid = true;
for (j2 = 0; j2 < 8; j2++) {
j = 8*j1+j2;
if (enc->uni2charset[j] != 0)
all_invalid = false;
}
if (all_invalid)
line[j1] = -1;
else
line[j1] = 0;
}
tableno = 0;
for (j1 = 0; j1 < 0x6000; 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 (enc->uni2charset[j] != 0)
tables[t].usecount++;
}
{
p = -1;
for (t = 0; t < tableno; t++)
if (tables[t].usecount > 1) {
p = tables[t].minline >> 5;
printf("static const unsigned short %s_page%02x[%d] = {\n", name, p, 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(" 0x%04x,", enc->uni2charset[j]);
}
printf(" /*0x%02x-0x%02x*/\n", 8*(j1 % 0x20), 8*(j1 % 0x20)+7);
}
printf("};\n");
}
if (p >= 0)
printf("\n");
}
printf("static int\n%s_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)\n", name);
printf("{\n");
printf(" if (n >= 2) {\n");
printf(" unsigned short c = 0;\n");
first = true;
for (j1 = 0; j1 < 0x6000;) {
t = line[j1];
for (j2 = j1; j2 < 0x6000 && 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 (first)
printf(" ");
else
printf(" else ");
first = false;
if (tables[t].usecount == 0) abort();
if (tables[t].usecount == 1) {
if (j2 != j1+1) abort();
for (j = 8*j1; j < 8*j2; j++)
if (enc->uni2charset[j] != 0) {
printf("if (wc == 0x%04x)\n c = 0x%02x;\n", j, enc->uni2charset[j]);
break;
}
} else {
if (j1 == 0) {
printf("if (wc < 0x%04x)", 8*j2);
} else {
printf("if (wc >= 0x%04x && wc < 0x%04x)", 8*j1, 8*j2);
}
printf("\n c = %s_page%02x[wc", name, j1 >> 5);
if (tables[t].minline > 0)
printf("-0x%04x", 8*j1);
printf("];\n");
}
}
j1 = j2;
}
printf(" if (c != 0) {\n");
printf(" r[0] = (c >> 8); r[1] = (c & 0xff);\n");
printf(" return 2;\n");
printf(" }\n");
printf(" return RET_ILUNI;\n");
printf(" }\n");
printf(" return RET_TOOSMALL;\n");
printf("}\n");
}
/*
* Outputs the unicode to charset table and function, using a packed array.
* (Suitable if the table is sparse.)
* The argument 'monotonic' may be set to true if the mapping is monotonically
* increasing with small gaps only.
*/
static void output_uni2charset_sparse (const char* name, Encoding* enc, bool monotonic)
{
bool pages[0x300];
Block pageblocks[0x300]; int npageblocks;
int indx2charset[0x30000];
int summary_indx[0x3000];
int summary_used[0x3000];
int i, row, col, j, p, j1, j2, indx;
bool is_large;
/* for monotonic: */
int log2_stepsize = (!strcmp(name,"uhc_2") ? 6 : 7);
int stepsize = 1 << log2_stepsize;
int indxsteps;
/* Fill pages[0x300]. */
for (p = 0; p < 0x300; p++)
pages[p] = false;
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++) {
j = enc->charset2uni[row][col];
if (j != 0xfffd)
pages[j>>8] = true;
}
/* Determine whether two or three bytes are needed for each character. */
is_large = false;
for (j = 0; j < 0x30000; j++)
if (enc->uni2charset[j] >= 0x10000)
is_large = true;
#if 0
for (p = 0; p < 0x300; p++)
if (pages[p]) {
printf("static const unsigned short %s_page%02x[256] = {\n", name, p);
for (j1 = 0; j1 < 32; j1++) {
printf(" ");
for (j2 = 0; j2 < 8; j2++)
printf("0x%04x, ", enc->uni2charset[256*p+8*j1+j2]);
printf("/""*0x%02x-0x%02x*""/\n", 8*j1, 8*j1+7);
}
printf("};\n");
}
printf("\n");
#endif
/* Fill summary_indx[] and summary_used[]. */
indx = 0;
for (j1 = 0; j1 < 0x3000; j1++) {
summary_indx[j1] = indx;
summary_used[j1] = 0;
for (j2 = 0; j2 < 16; j2++) {
j = 16*j1+j2;
if (enc->uni2charset[j] != 0) {
indx2charset[indx++] = enc->uni2charset[j];
summary_used[j1] |= (1 << j2);
}
}
}
/* Fill npageblocks and pageblocks[]. */
npageblocks = 0;
for (p = 0; p < 0x300; ) {
if (pages[p] && (p == 0 || !pages[p-1])) {
pageblocks[npageblocks].start = 16*p;
do p++; while (p < 0x300 && pages[p]);
j1 = 16*p;
while (summary_used[j1-1] == 0) j1--;
pageblocks[npageblocks].end = j1;
npageblocks++;
} else
p++;
}
if (monotonic) {
indxsteps = (indx + stepsize-1) / stepsize;
printf("static const unsigned short %s_2charset_main[%d] = {\n", name, indxsteps);
for (i = 0; i < indxsteps; ) {
if ((i % 8) == 0) printf(" ");
printf(" 0x%04x,", indx2charset[i*stepsize]);
i++;
if ((i % 8) == 0 || i == indxsteps) printf("\n");
}
printf("};\n");
printf("static const unsigned char %s_2charset[%d] = {\n", name, indx);
for (i = 0; i < indx; ) {
if ((i % 8) == 0) printf(" ");
printf(" 0x%02x,", indx2charset[i] - indx2charset[i/stepsize*stepsize]);
i++;
if ((i % 8) == 0 || i == indx) printf("\n");
}
printf("};\n");
} else {
if (is_large) {
printf("static const unsigned char %s_2charset[3*%d] = {\n", name, indx);
for (i = 0; i < indx; ) {
if ((i % 4) == 0) printf(" ");
printf(" 0x%1x,0x%02x,0x%02x,", indx2charset[i] >> 16,
(indx2charset[i] >> 8) & 0xff, indx2charset[i] & 0xff);
i++;
if ((i % 4) == 0 || i == indx) printf("\n");
}
printf("};\n");
} else {
printf("static const unsigned short %s_2charset[%d] = {\n", name, indx);
for (i = 0; i < indx; ) {
if ((i % 8) == 0) printf(" ");
printf(" 0x%04x,", indx2charset[i]);
i++;
if ((i % 8) == 0 || i == indx) printf("\n");
}
printf("};\n");
}
}
printf("\n");
for (i = 0; i < npageblocks; i++) {
printf("static const Summary16 %s_uni2indx_page%02x[%d] = {\n", name,
pageblocks[i].start/16, pageblocks[i].end-pageblocks[i].start);
for (j1 = pageblocks[i].start; j1 < pageblocks[i].end; ) {
if (((16*j1) % 0x100) == 0) printf(" /""* 0x%04x *""/\n", 16*j1);
if ((j1 % 4) == 0) printf(" ");
printf(" { %4d, 0x%04x },", summary_indx[j1], summary_used[j1]);
j1++;
if ((j1 % 4) == 0 || j1 == pageblocks[i].end) printf("\n");
}
printf("};\n");
}
printf("\n");
printf("static int\n");
printf("%s_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)\n", name);
printf("{\n");
printf(" if (n >= 2) {\n");
printf(" const Summary16 *summary = NULL;\n");
for (i = 0; i < npageblocks; i++) {
printf(" ");
if (i > 0)
printf("else ");
printf("if (wc >= 0x%04x && wc < 0x%04x)\n",
16*pageblocks[i].start, 16*pageblocks[i].end);
printf(" summary = &%s_uni2indx_page%02x[(wc>>4)", name,
pageblocks[i].start/16);
if (pageblocks[i].start > 0)
printf("-0x%03x", pageblocks[i].start);
printf("];\n");
}
printf(" if (summary) {\n");
printf(" unsigned short used = summary->used;\n");
printf(" unsigned int i = wc & 0x0f;\n");
printf(" if (used & ((unsigned short) 1 << i)) {\n");
if (monotonic || !is_large)
printf(" unsigned short c;\n");
printf(" /* Keep in 'used' only the bits 0..i-1. */\n");
printf(" used &= ((unsigned short) 1 << i) - 1;\n");
printf(" /* Add 'summary->indx' and the number of bits set in 'used'. */\n");
printf(" used = (used & 0x5555) + ((used & 0xaaaa) >> 1);\n");
printf(" used = (used & 0x3333) + ((used & 0xcccc) >> 2);\n");
printf(" used = (used & 0x0f0f) + ((used & 0xf0f0) >> 4);\n");
printf(" used = (used & 0x00ff) + (used >> 8);\n");
if (monotonic) {
printf(" used += summary->indx;\n");
printf(" c = %s_2charset_main[used>>%d] + %s_2charset[used];\n", name, log2_stepsize, name);
printf(" r[0] = (c >> 8); r[1] = (c & 0xff);\n");
printf(" return 2;\n");
} else {
if (is_large) {
printf(" used += summary->indx;\n");
printf(" r[0] = %s_2charset[3*used];\n", name);
printf(" r[1] = %s_2charset[3*used+1];\n", name);
printf(" r[2] = %s_2charset[3*used+2];\n", name);
printf(" return 3;\n");
} else {
printf(" c = %s_2charset[summary->indx + used];\n", name);
printf(" r[0] = (c >> 8); r[1] = (c & 0xff);\n");
printf(" return 2;\n");
}
}
printf(" }\n");
printf(" }\n");
printf(" return RET_ILUNI;\n");
printf(" }\n");
printf(" return RET_TOOSMALL;\n");
printf("}\n");
}
/* ISO-2022/EUC specifics */
static int row_byte_normal (int row) { return 0x21+row; }
static int col_byte_normal (int col) { return 0x21+col; }
static int byte_row_normal (int byte) { return byte-0x21; }
static int byte_col_normal (int byte) { return byte-0x21; }
static void do_normal (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 94;
enc.row_byte = row_byte_normal;
enc.col_byte = col_byte_normal;
enc.byte_row = byte_row_normal;
enc.byte_col = byte_col_normal;
enc.check_row_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.check_col_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.byte_row_expr = "%1$s - 0x21";
enc.byte_col_expr = "%1$s - 0x21";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* Note: On first sight, the jisx0212_2charset[] table seems to be in order,
starting from the charset=0x3021/uni=0x4e02 pair. But it's only mostly in
order. There are 75 out-of-order values, scattered all throughout the table.
*/
static void do_normal_only_charset2uni (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 94;
enc.row_byte = row_byte_normal;
enc.col_byte = col_byte_normal;
enc.byte_row = byte_row_normal;
enc.byte_col = byte_col_normal;
enc.check_row_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.check_col_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.byte_row_expr = "%1$s - 0x21";
enc.byte_col_expr = "%1$s - 0x21";
read_table(&enc);
output_charset2uni(name,&enc);
}
/* CNS 11643 specifics - trick to put two tables into one */
static int row_byte_cns11643 (int row) {
return 0x100 * (row / 94) + (row % 94) + 0x21;
}
static int byte_row_cns11643 (int byte) {
return (byte >> 8) * 94 + (byte & 0xff) - 0x21;
}
static void do_cns11643_only_uni2charset (const char* name)
{
Encoding enc;
enc.rows = 16*94;
enc.cols = 94;
enc.row_byte = row_byte_cns11643;
enc.col_byte = col_byte_normal;
enc.byte_row = byte_row_cns11643;
enc.byte_col = byte_col_normal;
enc.check_row_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.check_col_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.byte_row_expr = "%1$s - 0x21";
enc.byte_col_expr = "%1$s - 0x21";
read_table(&enc);
invert(&enc);
output_uni2charset_sparse(name,&enc,false);
}
/* GBK specifics */
static int row_byte_gbk1 (int row) {
return 0x81+row;
}
static int col_byte_gbk1 (int col) {
return (col >= 0x3f ? 0x41 : 0x40) + col;
}
static int byte_row_gbk1 (int byte) {
if (byte >= 0x81 && byte < 0xff)
return byte-0x81;
else
return -1;
}
static int byte_col_gbk1 (int byte) {
if (byte >= 0x40 && byte < 0x7f)
return byte-0x40;
else if (byte >= 0x80 && byte < 0xff)
return byte-0x41;
else
return -1;
}
static void do_gbk1 (const char* name)
{
Encoding enc;
enc.rows = 126;
enc.cols = 190;
enc.row_byte = row_byte_gbk1;
enc.col_byte = col_byte_gbk1;
enc.byte_row = byte_row_gbk1;
enc.byte_col = byte_col_gbk1;
enc.check_row_expr = "%1$s >= 0x81 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0x80 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x81";
enc.byte_col_expr = "%1$s - (%1$s >= 0x80 ? 0x41 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_dense(name,&enc);
}
static void do_gbk1_only_charset2uni (const char* name)
{
Encoding enc;
enc.rows = 126;
enc.cols = 190;
enc.row_byte = row_byte_gbk1;
enc.col_byte = col_byte_gbk1;
enc.byte_row = byte_row_gbk1;
enc.byte_col = byte_col_gbk1;
enc.check_row_expr = "%1$s >= 0x81 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0x80 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x81";
enc.byte_col_expr = "%1$s - (%1$s >= 0x80 ? 0x41 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
}
static int row_byte_gbk2 (int row) {
return 0x81+row;
}
static int col_byte_gbk2 (int col) {
return (col >= 0x3f ? 0x41 : 0x40) + col;
}
static int byte_row_gbk2 (int byte) {
if (byte >= 0x81 && byte < 0xff)
return byte-0x81;
else
return -1;
}
static int byte_col_gbk2 (int byte) {
if (byte >= 0x40 && byte < 0x7f)
return byte-0x40;
else if (byte >= 0x80 && byte < 0xa1)
return byte-0x41;
else
return -1;
}
static void do_gbk2_only_charset2uni (const char* name)
{
Encoding enc;
enc.rows = 126;
enc.cols = 96;
enc.row_byte = row_byte_gbk2;
enc.col_byte = col_byte_gbk2;
enc.byte_row = byte_row_gbk2;
enc.byte_col = byte_col_gbk2;
enc.check_row_expr = "%1$s >= 0x81 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0x80 && %1$s < 0xa1)";
enc.byte_row_expr = "%1$s - 0x81";
enc.byte_col_expr = "%1$s - (%1$s >= 0x80 ? 0x41 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
}
static void do_gbk1_only_uni2charset (const char* name)
{
Encoding enc;
enc.rows = 126;
enc.cols = 190;
enc.row_byte = row_byte_gbk1;
enc.col_byte = col_byte_gbk1;
enc.byte_row = byte_row_gbk1;
enc.byte_col = byte_col_gbk1;
enc.check_row_expr = "%1$s >= 0x81 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0x80 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x81";
enc.byte_col_expr = "%1$s - (%1$s >= 0x80 ? 0x41 : 0x40)";
read_table(&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* KSC 5601 specifics */
/*
* Reads the charset2uni table from standard input.
*/
static void read_table_ksc5601 (Encoding* enc)
{
int row, col, i, i1, i2, c, j;
enc->charset2uni = (int**) malloc(enc->rows*sizeof(int*));
for (row = 0; row < enc->rows; row++)
enc->charset2uni[row] = (int*) malloc(enc->cols*sizeof(int));
for (row = 0; row < enc->rows; row++)
for (col = 0; col < enc->cols; col++)
enc->charset2uni[row][col] = 0xfffd;
c = getc(stdin);
ungetc(c,stdin);
if (c == '#') {
/* Read a unicode.org style .TXT file. */
for (;;) {
c = getc(stdin);
if (c == EOF)
break;
if (c == '\n' || c == ' ' || c == '\t')
continue;
if (c == '#') {
do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
continue;
}
ungetc(c,stdin);
if (scanf("0x%x", &j) != 1)
exit(1);
i1 = j >> 8;
i2 = j & 0xff;
if (scanf(" 0x%x", &j) != 1)
exit(1);
/* Take only the range covered by KS C 5601.1987-0 = KS C 5601.1989-0
= KS X 1001.1992, ignore the rest. */
if (!(i1 >= 128+33 && i1 < 128+127 && i2 >= 128+33 && i2 < 128+127))
continue; /* KSC5601 specific */
i1 &= 0x7f; /* KSC5601 specific */
i2 &= 0x7f; /* KSC5601 specific */
row = enc->byte_row(i1);
col = enc->byte_col(i2);
if (row < 0 || col < 0) {
fprintf(stderr, "lost entry for %02x %02x\n", i1, i2);
exit(1);
}
enc->charset2uni[row][col] = j;
}
} else {
/* Read a table of hexadecimal Unicode values. */
for (i1 = 33; i1 < 127; i1++)
for (i2 = 33; i2 < 127; i2++) {
i = scanf("%x", &j);
if (i == EOF)
goto read_done;
if (i != 1)
exit(1);
if (j < 0 || j == 0xffff)
j = 0xfffd;
if (j != 0xfffd) {
if (enc->byte_row(i1) < 0 || enc->byte_col(i2) < 0) {
fprintf(stderr, "lost entry at %02x %02x\n", i1, i2);
exit (1);
}
enc->charset2uni[enc->byte_row(i1)][enc->byte_col(i2)] = j;
}
}
read_done: ;
}
}
static void do_ksc5601 (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 94;
enc.row_byte = row_byte_normal;
enc.col_byte = col_byte_normal;
enc.byte_row = byte_row_normal;
enc.byte_col = byte_col_normal;
enc.check_row_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.check_col_expr = "%1$s >= 0x21 && %1$s < 0x7f";
enc.byte_row_expr = "%1$s - 0x21";
enc.byte_col_expr = "%1$s - 0x21";
read_table_ksc5601(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* UHC specifics */
/* UHC part 1: 0x{81..A0}{41..5A,61..7A,81..FE} */
static int row_byte_uhc_1 (int row) {
return 0x81 + row;
}
static int col_byte_uhc_1 (int col) {
return (col >= 0x34 ? 0x4d : col >= 0x1a ? 0x47 : 0x41) + col;
}
static int byte_row_uhc_1 (int byte) {
if (byte >= 0x81 && byte < 0xa1)
return byte-0x81;
else
return -1;
}
static int byte_col_uhc_1 (int byte) {
if (byte >= 0x41 && byte < 0x5b)
return byte-0x41;
else if (byte >= 0x61 && byte < 0x7b)
return byte-0x47;
else if (byte >= 0x81 && byte < 0xff)
return byte-0x4d;
else
return -1;
}
static void do_uhc_1 (const char* name)
{
Encoding enc;
enc.rows = 32;
enc.cols = 178;
enc.row_byte = row_byte_uhc_1;
enc.col_byte = col_byte_uhc_1;
enc.byte_row = byte_row_uhc_1;
enc.byte_col = byte_col_uhc_1;
enc.check_row_expr = "(%1$s >= 0x81 && %1$s < 0xa1)";
enc.check_col_expr = "(%1$s >= 0x41 && %1$s < 0x5b) || (%1$s >= 0x61 && %1$s < 0x7b) || (%1$s >= 0x81 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x81";
enc.byte_col_expr = "%1$s - (%1$s >= 0x81 ? 0x4d : %1$s >= 0x61 ? 0x47 : 0x41)";
read_table(&enc);
output_charset2uni_noholes_monotonic(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,true);
}
/* UHC part 2: 0x{A1..C6}{41..5A,61..7A,81..A0} */
static int row_byte_uhc_2 (int row) {
return 0xa1 + row;
}
static int col_byte_uhc_2 (int col) {
return (col >= 0x34 ? 0x4d : col >= 0x1a ? 0x47 : 0x41) + col;
}
static int byte_row_uhc_2 (int byte) {
if (byte >= 0xa1 && byte < 0xff)
return byte-0xa1;
else
return -1;
}
static int byte_col_uhc_2 (int byte) {
if (byte >= 0x41 && byte < 0x5b)
return byte-0x41;
else if (byte >= 0x61 && byte < 0x7b)
return byte-0x47;
else if (byte >= 0x81 && byte < 0xa1)
return byte-0x4d;
else
return -1;
}
static void do_uhc_2 (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 84;
enc.row_byte = row_byte_uhc_2;
enc.col_byte = col_byte_uhc_2;
enc.byte_row = byte_row_uhc_2;
enc.byte_col = byte_col_uhc_2;
enc.check_row_expr = "(%1$s >= 0xa1 && %1$s < 0xff)";
enc.check_col_expr = "(%1$s >= 0x41 && %1$s < 0x5b) || (%1$s >= 0x61 && %1$s < 0x7b) || (%1$s >= 0x81 && %1$s < 0xa1)";
enc.byte_row_expr = "%1$s - 0xa1";
enc.byte_col_expr = "%1$s - (%1$s >= 0x81 ? 0x4d : %1$s >= 0x61 ? 0x47 : 0x41)";
read_table(&enc);
output_charset2uni_noholes_monotonic(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,true);
}
/* Big5 specifics */
static int row_byte_big5 (int row) {
return 0xa1+row;
}
static int col_byte_big5 (int col) {
return (col >= 0x3f ? 0x62 : 0x40) + col;
}
static int byte_row_big5 (int byte) {
if (byte >= 0xa1 && byte < 0xff)
return byte-0xa1;
else
return -1;
}
static int byte_col_big5 (int byte) {
if (byte >= 0x40 && byte < 0x7f)
return byte-0x40;
else if (byte >= 0xa1 && byte < 0xff)
return byte-0x62;
else
return -1;
}
static void do_big5 (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 157;
enc.row_byte = row_byte_big5;
enc.col_byte = col_byte_big5;
enc.byte_row = byte_row_big5;
enc.byte_col = byte_col_big5;
enc.check_row_expr = "%1$s >= 0xa1 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0xa1 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0xa1";
enc.byte_col_expr = "%1$s - (%1$s >= 0xa1 ? 0x62 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* HKSCS specifics */
static int row_byte_hkscs (int row) {
return 0x80+row;
}
static int byte_row_hkscs (int byte) {
if (byte >= 0x80 && byte < 0xff)
return byte-0x80;
else
return -1;
}
static void do_hkscs (const char* name)
{
Encoding enc;
enc.rows = 128;
enc.cols = 157;
enc.row_byte = row_byte_hkscs;
enc.col_byte = col_byte_big5;
enc.byte_row = byte_row_hkscs;
enc.byte_col = byte_col_big5;
enc.check_row_expr = "%1$s >= 0x80 && %1$s < 0xff";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0xa1 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x80";
enc.byte_col_expr = "%1$s - (%1$s >= 0xa1 ? 0x62 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* Johab Hangul specifics */
static int row_byte_johab_hangul (int row) {
return 0x84+row;
}
static int col_byte_johab_hangul (int col) {
return (col >= 0x3e ? 0x43 : 0x41) + col;
}
static int byte_row_johab_hangul (int byte) {
if (byte >= 0x84 && byte < 0xd4)
return byte-0x84;
else
return -1;
}
static int byte_col_johab_hangul (int byte) {
if (byte >= 0x41 && byte < 0x7f)
return byte-0x41;
else if (byte >= 0x81 && byte < 0xff)
return byte-0x43;
else
return -1;
}
static void do_johab_hangul (const char* name)
{
Encoding enc;
enc.rows = 80;
enc.cols = 188;
enc.row_byte = row_byte_johab_hangul;
enc.col_byte = col_byte_johab_hangul;
enc.byte_row = byte_row_johab_hangul;
enc.byte_col = byte_col_johab_hangul;
enc.check_row_expr = "%1$s >= 0x84 && %1$s < 0xd4";
enc.check_col_expr = "(%1$s >= 0x41 && %1$s < 0x7f) || (%1$s >= 0x81 && %1$s < 0xff)";
enc.byte_row_expr = "%1$s - 0x84";
enc.byte_col_expr = "%1$s - (%1$s >= 0x81 ? 0x43 : 0x41)";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_dense(name,&enc);
}
/* SJIS specifics */
static int row_byte_sjis (int row) {
return (row >= 0x1f ? 0xc1 : 0x81) + row;
}
static int col_byte_sjis (int col) {
return (col >= 0x3f ? 0x41 : 0x40) + col;
}
static int byte_row_sjis (int byte) {
if (byte >= 0x81 && byte < 0xa0)
return byte-0x81;
else if (byte >= 0xe0)
return byte-0xc1;
else
return -1;
}
static int byte_col_sjis (int byte) {
if (byte >= 0x40 && byte < 0x7f)
return byte-0x40;
else if (byte >= 0x80 && byte < 0xfd)
return byte-0x41;
else
return -1;
}
static void do_sjis (const char* name)
{
Encoding enc;
enc.rows = 94;
enc.cols = 188;
enc.row_byte = row_byte_sjis;
enc.col_byte = col_byte_sjis;
enc.byte_row = byte_row_sjis;
enc.byte_col = byte_col_sjis;
enc.check_row_expr = "(%1$s >= 0x81 && %1$s < 0xa0) || (%1$s >= 0xe0)";
enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0x80 && %1$s < 0xfd)";
enc.byte_row_expr = "%1$s - (%1$s >= 0xe0 ? 0xc1 : 0x81)";
enc.byte_col_expr = "%1$s - (%1$s >= 0x80 ? 0x41 : 0x40)";
read_table(&enc);
output_charset2uni(name,&enc);
invert(&enc); output_uni2charset_sparse(name,&enc,false);
}
/* GB18030 Unicode specifics */
static void do_gb18030uni (const char* name)
{
int c;
unsigned int bytes;
int i1, i2, i3, i4, i, j, k;
int charset2uni[4*10*126*10];
int uni2charset[0x10000];
struct { int low; int high; int diff; int total; } ranges[256];
int ranges_count, ranges_total;
for (i = 0; i < 4*10*126*10; i++)
charset2uni[i] = 0;
for (j = 0; j < 0x10000; j++)
uni2charset[j] = 0;
/* Read a unicode.org style .TXT file. */
for (;;) {
c = getc(stdin);
if (c == EOF)
break;
if (c == '\n' || c == ' ' || c == '\t')
continue;
if (c == '#') {
do { c = getc(stdin); } while (!(c == EOF || c == '\n'));
continue;
}
ungetc(c,stdin);
if (scanf("0x%x", &bytes) != 1)
exit(1);
i1 = (bytes >> 24) & 0xff;
i2 = (bytes >> 16) & 0xff;
i3 = (bytes >> 8) & 0xff;
i4 = bytes & 0xff;
if (!(i1 >= 0x81 && i1 <= 0x84
&& i2 >= 0x30 && i2 <= 0x39
&& i3 >= 0x81 && i3 <= 0xfe
&& i4 >= 0x30 && i4 <= 0x39)) {
fprintf(stderr, "lost entry for %02x %02x %02x %02x\n", i1, i2, i3, i4);
exit(1);
}
i = (((i1-0x81) * 10 + (i2-0x30)) * 126 + (i3-0x81)) * 10 + (i4-0x30);
if (scanf(" 0x%x", &j) != 1)
exit(1);
if (!(j >= 0 && j < 0x10000))
exit(1);
charset2uni[i] = j;
uni2charset[j] = i;
}
/* Verify that the mapping i -> j is monotonically increasing and
of the form
low[k] <= i <= high[k] => j = diff[k] + i
with a set of disjoint intervals (low[k], high[k]). */
ranges_count = 0;
for (i = 0; i < 4*10*126*10; i++)
if (charset2uni[i] != 0) {
int diff;
j = charset2uni[i];
diff = j - i;
if (ranges_count > 0) {
if (!(i > ranges[ranges_count-1].high))
exit(1);
if (!(j > ranges[ranges_count-1].high + ranges[ranges_count-1].diff))
exit(1);
/* Additional property: The diffs are also increasing. */
if (!(diff >= ranges[ranges_count-1].diff))
exit(1);
}
if (ranges_count > 0 && diff == ranges[ranges_count-1].diff)
ranges[ranges_count-1].high = i;
else {
if (ranges_count == 256)
exit(1);
ranges[ranges_count].low = i;
ranges[ranges_count].high = i;
ranges[ranges_count].diff = diff;
ranges_count++;
}
}
/* Determine size of bitmap. */
ranges_total = 0;
for (k = 0; k < ranges_count; k++) {
ranges[k].total = ranges_total;
ranges_total += ranges[k].high - ranges[k].low + 1;
}
printf("static const unsigned short %s_charset2uni_ranges[%d] = {\n", name, 2*ranges_count);
for (k = 0; k < ranges_count; k++) {
printf(" 0x%04x, 0x%04x", ranges[k].low, ranges[k].high);
if (k+1 < ranges_count) printf(",");
if ((k % 4) == 3 && k+1 < ranges_count) printf("\n");
}
printf("\n");
printf("};\n");
printf("\n");
printf("static const unsigned short %s_uni2charset_ranges[%d] = {\n", name, 2*ranges_count);
for (k = 0; k < ranges_count; k++) {
printf(" 0x%04x, 0x%04x", ranges[k].low + ranges[k].diff, ranges[k].high + ranges[k].diff);
if (k+1 < ranges_count) printf(",");
if ((k % 4) == 3 && k+1 < ranges_count) printf("\n");
}
printf("\n");
printf("};\n");
printf("\n");
printf("static const struct { unsigned short diff; unsigned short bitmap_offset; } %s_ranges[%d] = {\n ", name, ranges_count);
for (k = 0; k < ranges_count; k++) {
printf(" { %5d, 0x%04x }", ranges[k].diff, ranges[k].total);
if (k+1 < ranges_count) printf(",");
if ((k % 4) == 3 && k+1 < ranges_count) printf("\n ");
}
printf("\n");
printf("};\n");
printf("\n");
printf("static const unsigned char %s_bitmap[%d] = {\n ", name, (ranges_total + 7) / 8);
{
int accu = 0;
for (k = 0; k < ranges_count; k++) {
for (i = ranges[k].total; i <= ranges[k].total + (ranges[k].high - ranges[k].low);) {
if (charset2uni[i - ranges[k].total + ranges[k].low] != 0)
accu |= (1 << (i % 8));
i++;
if ((i % 8) == 0) {
printf(" 0x%02x", accu);
if ((i / 8) < (ranges_total + 7) / 8) printf(",");
if (((i / 8) % 12) == 0)
printf("\n ");
accu = 0;
}
}
if (i != (k+1 < ranges_count ? ranges[k+1].total : ranges_total)) abort();
}
if ((ranges_total % 8) != 0)
printf(" 0x%02x", accu);
printf("\n");
}
printf("};\n");
printf("\n");
printf("static int\n");
printf("%s_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)\n", name);
printf("{\n");
printf(" unsigned char c1 = s[0];\n");
printf(" if (c1 >= 0x81 && c1 <= 0x84) {\n");
printf(" if (n >= 2) {\n");
printf(" unsigned char c2 = s[1];\n");
printf(" if (c2 >= 0x30 && c2 <= 0x39) {\n");
printf(" if (n >= 3) {\n");
printf(" unsigned char c3 = s[2];\n");
printf(" if (c3 >= 0x81 && c3 <= 0xfe) {\n");
printf(" if (n >= 4) {\n");
printf(" unsigned char c4 = s[3];\n");
printf(" if (c4 >= 0x30 && c4 <= 0x39) {\n");
printf(" unsigned int i = (((c1 - 0x81) * 10 + (c2 - 0x30)) * 126 + (c3 - 0x81)) * 10 + (c4 - 0x30);\n");
printf(" if (i >= %d && i <= %d) {\n", ranges[0].low, ranges[ranges_count-1].high);
printf(" unsigned int k1 = 0;\n");
printf(" unsigned int k2 = %d;\n", ranges_count-1);
printf(" while (k1 < k2) {\n");
printf(" unsigned int k = (k1 + k2) / 2;\n");
printf(" if (i <= %s_charset2uni_ranges[2*k+1])\n", name);
printf(" k2 = k;\n");
printf(" else if (i >= %s_charset2uni_ranges[2*k+2])\n", name);
printf(" k1 = k + 1;\n");
printf(" else\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" {\n");
printf(" unsigned int bitmap_index = i - %s_charset2uni_ranges[2*k1] + %s_ranges[k1].bitmap_offset;\n", name, name);
printf(" if ((%s_bitmap[bitmap_index >> 3] >> (bitmap_index & 7)) & 1) {\n", name);
printf(" unsigned int diff = %s_ranges[k1].diff;\n", name);
printf(" *pwc = (ucs4_t) (i + diff);\n");
printf(" return 4;\n");
printf(" }\n");
printf(" }\n");
printf(" }\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" return RET_TOOFEW(0);\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" return RET_TOOFEW(0);\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf(" }\n");
printf(" return RET_TOOFEW(0);\n");
printf(" }\n");
printf(" return RET_ILSEQ;\n");
printf("}\n");
printf("\n");
printf("static int\n");
printf("%s_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)\n", name);
printf("{\n");
printf(" if (n >= 4) {\n");
printf(" unsigned int i = wc;\n");
printf(" if (i >= 0x%04x && i <= 0x%04x) {\n", ranges[0].low + ranges[0].diff, ranges[ranges_count-1].high + ranges[ranges_count-1].diff);
printf(" unsigned int k1 = 0;\n");
printf(" unsigned int k2 = %d;\n", ranges_count-1);
printf(" while (k1 < k2) {\n");
printf(" unsigned int k = (k1 + k2) / 2;\n");
printf(" if (i <= %s_uni2charset_ranges[2*k+1])\n", name);
printf(" k2 = k;\n");
printf(" else if (i >= %s_uni2charset_ranges[2*k+2])\n", name);
printf(" k1 = k + 1;\n");
printf(" else\n");
printf(" return RET_ILUNI;\n");
printf(" }\n");
printf(" {\n");
printf(" unsigned int bitmap_index = i - %s_uni2charset_ranges[2*k1] + %s_ranges[k1].bitmap_offset;\n", name, name);
printf(" if ((%s_bitmap[bitmap_index >> 3] >> (bitmap_index & 7)) & 1) {\n", name);
printf(" unsigned int diff = %s_ranges[k1].diff;\n", name);
printf(" i -= diff;\n");
printf(" r[3] = (i %% 10) + 0x30; i = i / 10;\n");
printf(" r[2] = (i %% 126) + 0x81; i = i / 126;\n");
printf(" r[1] = (i %% 10) + 0x30; i = i / 10;\n");
printf(" r[0] = i + 0x81;\n");
printf(" return 4;\n");
printf(" }\n");
printf(" }\n");
printf(" }\n");
printf(" return RET_ILUNI;\n");
printf(" }\n");
printf(" return RET_TOOSMALL;\n");
printf("}\n");
}
/* JISX0213 specifics */
static void do_jisx0213 (const char* name)
{
printf("#ifndef _JISX0213_H\n");
printf("#define _JISX0213_H\n");
printf("\n");
printf("/* JISX0213 plane 1 (= ISO-IR-233) characters are in the range\n");
printf(" 0x{21..7E}{21..7E}.\n");
printf(" JISX0213 plane 2 (= ISO-IR-229) characters are in the range\n");
printf(" 0x{21,23..25,28,2C..2F,6E..7E}{21..7E}.\n");
printf(" Together this makes 120 rows of 94 characters.\n");
printf("*/\n");
printf("\n");
{
#define row_convert(row) \
((row) >= 0x121 && (row) <= 0x17E ? row-289 : /* 0..93 */ \
(row) == 0x221 ? row-451 : /* 94 */ \
(row) >= 0x223 && (row) <= 0x225 ? row-452 : /* 95..97 */ \
(row) == 0x228 ? row-454 : /* 98 */ \
(row) >= 0x22C && (row) <= 0x22F ? row-457 : /* 99..102 */ \
(row) >= 0x26E && (row) <= 0x27E ? row-519 : /* 103..119 */ \
-1)
unsigned int table[120][94];
int pagemin[0x1100];
int pagemax[0x1100];
int pageidx[0x1100];
unsigned int pagestart[0x1100];
unsigned int pagestart_len = 0;
{
unsigned int rowc, colc;
for (rowc = 0; rowc < 120; rowc++)
for (colc = 0; colc < 94; colc++)
table[rowc][colc] = 0;
}
{
unsigned int page;
for (page = 0; page < 0x1100; page++)
pagemin[page] = -1;
for (page = 0; page < 0x1100; page++)
pagemax[page] = -1;
for (page = 0; page < 0x1100; page++)
pageidx[page] = -1;
}
printf("static const unsigned short jisx0213_to_ucs_combining[][2] = {\n");
{
int private_use = 0x0001;
for (;;) {
char line[30];
unsigned int row, col;
unsigned int ucs;
memset(line,0,sizeof(line));
if (scanf("%[^\n]\n",line) < 1)
break;
assert(line[0]=='0');
assert(line[1]=='x');
assert(isxdigit(line[2]));
assert(isxdigit(line[3]));
assert(isxdigit(line[4]));
assert(isxdigit(line[5]));
assert(isxdigit(line[6]));
assert(line[7]=='\t');
line[7] = '\0';
col = strtoul(&line[5],NULL,16);
line[5] = '\0';
row = strtoul(&line[2],NULL,16);
if (line[20] != '\0' && line[21] == '\0') {
unsigned int u1, u2;
assert(line[8]=='0');
assert(line[9]=='x');
assert(isxdigit(line[10]));
assert(isxdigit(line[11]));
assert(isxdigit(line[12]));
assert(isxdigit(line[13]));
assert(line[14]==' ');
assert(line[15]=='0');
assert(line[16]=='x');
assert(isxdigit(line[17]));
assert(isxdigit(line[18]));
assert(isxdigit(line[19]));
assert(isxdigit(line[20]));
u2 = strtoul(&line[17],NULL,16);
line[14] = '\0';
u1 = strtoul(&line[10],NULL,16);
printf(" { 0x%04x, 0x%04x },\n", u1, u2);
ucs = private_use++;
} else {
assert(line[8]=='0');
assert(line[9]=='x');
assert(isxdigit(line[10]));
assert(isxdigit(line[11]));
assert(isxdigit(line[12]));
assert(isxdigit(line[13]));
ucs = strtoul(&line[10],NULL,16);
}
assert((unsigned int) row_convert(row) < 120);
assert((unsigned int) (col-0x21) < 94);
table[row_convert(row)][col-0x21] = ucs;
}
}
printf("};\n");
printf("\n");
{
unsigned int rowc, colc;
for (rowc = 0; rowc < 120; rowc++) {
for (colc = 0; colc < 94; colc++) {
unsigned int value = table[rowc][colc];
unsigned int page = value >> 8;
unsigned int rest = value & 0xff;
if (pagemin[page] < 0 || pagemin[page] > rest) pagemin[page] = rest;
if (pagemax[page] < 0 || pagemax[page] < rest) pagemax[page] = rest;
}
}
}
{
unsigned int index = 0;
unsigned int i;
for (i = 0; i < 0x1100; ) {
if (pagemin[i] >= 0) {
if (pagemin[i+1] >= 0 && pagemin[i] >= 0x80 && pagemax[i+1] < 0x80) {
/* Combine two pages into a single one. */
assert(pagestart_len < sizeof(pagestart)/sizeof(pagestart[0]));
pagestart[pagestart_len++] = (i<<8)+0x80;
pageidx[i] = index;
pageidx[i+1] = index;
index++;
i += 2;
} else {
/* A single page. */
assert(pagestart_len < sizeof(pagestart)/sizeof(pagestart[0]));
pagestart[pagestart_len++] = i<<8;
pageidx[i] = index;
index++;
i += 1;
}
} else
i++;
}
}
printf("static const unsigned short jisx0213_to_ucs_main[120 * 94] = {\n");
{
unsigned int row;
for (row = 0; row < 0x300; row++) {
unsigned int rowc = row_convert(row);
if (rowc != (unsigned int) (-1)) {
printf(" /* 0x%X21..0x%X7E */\n",row,row);
{
unsigned int count = 0;
unsigned int colc;
for (colc = 0; colc < 94; colc++) {
if ((count % 8) == 0) printf(" ");
{
unsigned int value = table[rowc][colc];
unsigned int page = value >> 8;
unsigned int index = pageidx[page];
assert(value-pagestart[index] < 0x100);
printf(" 0x%04x,",(index<<8)|(value-pagestart[index]));
}
count++;
if ((count % 8) == 0) printf("\n");
}
}
printf("\n");
}
}
}
printf("};\n");
printf("\n");
printf("static const ucs4_t jisx0213_to_ucs_pagestart[] = {\n");
{
unsigned int count = 0;
unsigned int i;
for (i = 0; i < pagestart_len; i++) {
char buf[10];
if ((count % 8) == 0) printf(" ");
printf(" ");
sprintf(buf,"0x%04x",pagestart[i]);
if (strlen(buf) < 7) printf("%*s",(int)(7-strlen(buf)),"");
printf("%s,",buf);
count++;
if ((count % 8) == 0) printf("\n");
}
}
printf("\n");
printf("};\n");
#undef row_convert
}
rewind(stdin);
printf("\n");
{
int table[0x110000];
bool pages[0x4400];
int maxpage = -1;
unsigned int combining_prefixes[100];
unsigned int combining_prefixes_len = 0;
{
unsigned int i;
for (i = 0; i < 0x110000; i++)
table[i] = -1;
for (i = 0; i < 0x4400; i++)
pages[i] = false;
}
for (;;) {
char line[30];
unsigned int plane, row, col;
memset(line,0,sizeof(line));
if (scanf("%[^\n]\n",line) < 1)
break;
assert(line[0]=='0');
assert(line[1]=='x');
assert(isxdigit(line[2]));
assert(isxdigit(line[3]));
assert(isxdigit(line[4]));
assert(isxdigit(line[5]));
assert(isxdigit(line[6]));
assert(line[7]=='\t');
line[7] = '\0';
col = strtoul(&line[5],NULL,16);
line[5] = '\0';
row = strtoul(&line[3],NULL,16);
line[3] = '\0';
plane = strtoul(&line[2],NULL,16) - 1;
if (line[20] != '\0' && line[21] == '\0') {
unsigned int u1, u2;
assert(line[8]=='0');
assert(line[9]=='x');
assert(isxdigit(line[10]));
assert(isxdigit(line[11]));
assert(isxdigit(line[12]));
assert(isxdigit(line[13]));
assert(line[14]==' ');
assert(line[15]=='0');
assert(line[16]=='x');
assert(isxdigit(line[17]));
assert(isxdigit(line[18]));
assert(isxdigit(line[19]));
assert(isxdigit(line[20]));
u2 = strtoul(&line[17],NULL,16);
line[14] = '\0';
u1 = strtoul(&line[10],NULL,16);
assert(u2 == 0x02E5 || u2 == 0x02E9 || u2 == 0x0300 || u2 == 0x0301
|| u2 == 0x309A);
assert(combining_prefixes_len < sizeof(combining_prefixes)/sizeof(combining_prefixes[0]));
combining_prefixes[combining_prefixes_len++] = u1;
} else {
unsigned int ucs;
assert(line[8]=='0');
assert(line[9]=='x');
assert(isxdigit(line[10]));
assert(isxdigit(line[11]));
assert(isxdigit(line[12]));
assert(isxdigit(line[13]));
ucs = strtoul(&line[10],NULL,16);
/* Add an entry. */
assert(plane <= 1);
assert(row <= 0x7f);
assert(col <= 0x7f);
table[ucs] = (plane << 15) | (row << 8) | col;
pages[ucs>>6] = true;
if (maxpage < 0 || (ucs>>6) > maxpage) maxpage = ucs>>6;
}
}
{
unsigned int i;
for (i = 0; i < combining_prefixes_len; i++) {
unsigned int u1 = combining_prefixes[i];
assert(table[u1] >= 0);
table[u1] |= 0x0080;
}
}
printf("static const short jisx0213_from_ucs_level1[%d] = {\n",maxpage+1);
{
unsigned int index = 0;
unsigned int i;
for (i = 0; i <= maxpage; i++) {
if ((i % 8) == 0) printf(" ");
if (pages[i]) {
printf(" %3u,",index);
index++;
} else {
printf(" %3d,",-1);
}
if (((i+1) % 8) == 0) printf("\n");
}
}
printf("\n");
printf("};\n");
printf("\n");
#if 0 /* Dense array */
printf("static const unsigned short jisx0213_from_ucs_level2[] = {\n");
{
unsigned int i;
for (i = 0; i <= maxpage; i++) {
if (pages[i]) {
printf(" /* 0x%04X */\n",i<<6);
{
unsigned int j;
for (j = 0; j < 0x40; ) {
unsigned int ucs = (i<<6)+j;
int value = table[ucs];
if (value < 0) value = 0;
if ((j % 8) == 0) printf(" ");
printf(" 0x%04x,",value);
j++;
if ((j % 8) == 0) printf("\n");
}
}
}
}
}
printf("};\n");
#else /* Sparse array */
{
int summary_indx[0x11000];
int summary_used[0x11000];
unsigned int i, k, indx;
printf("static const unsigned short jisx0213_from_ucs_level2_data[] = {\n");
/* Fill summary_indx[] and summary_used[]. */
indx = 0;
for (i = 0, k = 0; i <= maxpage; i++) {
if (pages[i]) {
unsigned int j1, j2;
unsigned int count = 0;
printf(" /* 0x%04X */\n",i<<6);
for (j1 = 0; j1 < 4; j1++) {
summary_indx[4*k+j1] = indx;
summary_used[4*k+j1] = 0;
for (j2 = 0; j2 < 16; j2++) {
unsigned int j = 16*j1+j2;
unsigned int ucs = (i<<6)+j;
int value = table[ucs];
if (value < 0) value = 0;
if (value > 0) {
summary_used[4*k+j1] |= (1 << j2);
if ((count % 8) == 0) printf(" ");
printf(" 0x%04x,",value);
count++;
if ((count % 8) == 0) printf("\n");
indx++;
}
}
}
if ((count % 8) > 0)
printf("\n");
k++;
}
}
printf("};\n");
printf("\n");
printf("static const Summary16 jisx0213_from_ucs_level2_2indx[] = {\n");
for (i = 0, k = 0; i <= maxpage; i++) {
if (pages[i]) {
unsigned int j1;
printf(" /* 0x%04X */\n",i<<6);
printf(" ");
for (j1 = 0; j1 < 4; j1++) {
printf(" { %4d, 0x%04x },", summary_indx[4*k+j1], summary_used[4*k+j1]);
}
printf("\n");
k++;
}
}
printf("};\n");
}
#endif
printf("\n");
}
printf("#ifdef __GNUC__\n");
printf("__inline\n");
printf("#else\n");
printf("#ifdef __cplusplus\n");
printf("inline\n");
printf("#endif\n");
printf("#endif\n");
printf("static ucs4_t jisx0213_to_ucs4 (unsigned int row, unsigned int col)\n");
printf("{\n");
printf(" ucs4_t val;\n");
printf("\n");
printf(" if (row >= 0x121 && row <= 0x17e)\n");
printf(" row -= 289;\n");
printf(" else if (row == 0x221)\n");
printf(" row -= 451;\n");
printf(" else if (row >= 0x223 && row <= 0x225)\n");
printf(" row -= 452;\n");
printf(" else if (row == 0x228)\n");
printf(" row -= 454;\n");
printf(" else if (row >= 0x22c && row <= 0x22f)\n");
printf(" row -= 457;\n");
printf(" else if (row >= 0x26e && row <= 0x27e)\n");
printf(" row -= 519;\n");
printf(" else\n");
printf(" return 0x0000;\n");
printf("\n");
printf(" if (col >= 0x21 && col <= 0x7e)\n");
printf(" col -= 0x21;\n");
printf(" else\n");
printf(" return 0x0000;\n");
printf("\n");
printf(" val = jisx0213_to_ucs_main[row * 94 + col];\n");
printf(" val = jisx0213_to_ucs_pagestart[val >> 8] + (val & 0xff);\n");
printf(" if (val == 0xfffd)\n");
printf(" val = 0x0000;\n");
printf(" return val;\n");
printf("}\n");
printf("\n");
printf("#ifdef __GNUC__\n");
printf("__inline\n");
printf("#else\n");
printf("#ifdef __cplusplus\n");
printf("inline\n");
printf("#endif\n");
printf("#endif\n");
printf("static unsigned short ucs4_to_jisx0213 (ucs4_t ucs)\n");
printf("{\n");
printf(" if (ucs < (sizeof(jisx0213_from_ucs_level1)/sizeof(jisx0213_from_ucs_level1[0])) << 6) {\n");
printf(" int index1 = jisx0213_from_ucs_level1[ucs >> 6];\n");
printf(" if (index1 >= 0)");
#if 0 /* Dense array */
printf("\n");
printf(" return jisx0213_from_ucs_level2[(index1 << 6) + (ucs & 0x3f)];\n");
#else /* Sparse array */
printf(" {\n");
printf(" const Summary16 *summary = &jisx0213_from_ucs_level2_2indx[((index1 << 6) + (ucs & 0x3f)) >> 4];\n");
printf(" unsigned short used = summary->used;\n");
printf(" unsigned int i = ucs & 0x0f;\n");
printf(" if (used & ((unsigned short) 1 << i)) {\n");
printf(" /* Keep in 'used' only the bits 0..i-1. */\n");
printf(" used &= ((unsigned short) 1 << i) - 1;\n");
printf(" /* Add 'summary->indx' and the number of bits set in 'used'. */\n");
printf(" used = (used & 0x5555) + ((used & 0xaaaa) >> 1);\n");
printf(" used = (used & 0x3333) + ((used & 0xcccc) >> 2);\n");
printf(" used = (used & 0x0f0f) + ((used & 0xf0f0) >> 4);\n");
printf(" used = (used & 0x00ff) + (used >> 8);\n");
printf(" return jisx0213_from_ucs_level2_data[summary->indx + used];\n");
printf(" };\n");
printf(" };\n");
#endif
printf(" }\n");
printf(" return 0x0000;\n");
printf("}\n");
printf("\n");
printf("#endif /* _JISX0213_H */\n");
}
/* Main program */
int main (int argc, char *argv[])
{
const char* charsetname;
const char* name;
if (argc != 3)
exit(1);
charsetname = argv[1];
name = argv[2];
output_title(charsetname);
if (!strcmp(name,"gb2312")
|| !strcmp(name,"isoir165ext") || !strcmp(name,"gb12345ext")
|| !strcmp(name,"jisx0208") || !strcmp(name,"jisx0212"))
do_normal(name);
else if (!strcmp(name,"cns11643_1") || !strcmp(name,"cns11643_2")
|| !strcmp(name,"cns11643_3") || !strcmp(name,"cns11643_4a")
|| !strcmp(name,"cns11643_4b") || !strcmp(name,"cns11643_5")
|| !strcmp(name,"cns11643_6") || !strcmp(name,"cns11643_7")
|| !strcmp(name,"cns11643_15"))
do_normal_only_charset2uni(name);
else if (!strcmp(name,"cns11643_inv"))
do_cns11643_only_uni2charset(name);
else if (!strcmp(name,"gbkext1"))
do_gbk1_only_charset2uni(name);
else if (!strcmp(name,"gbkext2"))
do_gbk2_only_charset2uni(name);
else if (!strcmp(name,"gbkext_inv"))
do_gbk1_only_uni2charset(name);
else if (!strcmp(name,"cp936ext") || !strcmp(name,"gb18030ext"))
do_gbk1(name);
else if (!strcmp(name,"ksc5601"))
do_ksc5601(name);
else if (!strcmp(name,"uhc_1"))
do_uhc_1(name);
else if (!strcmp(name,"uhc_2"))
do_uhc_2(name);
else if (!strcmp(name,"big5") || !strcmp(name,"cp950ext"))
do_big5(name);
else if (!strcmp(name,"hkscs1999") || !strcmp(name,"hkscs2001")
|| !strcmp(name,"hkscs2004") || !strcmp(name,"hkscs2008"))
do_hkscs(name);
else if (!strcmp(name,"johab_hangul"))
do_johab_hangul(name);
else if (!strcmp(name,"cp932ext"))
do_sjis(name);
else if (!strcmp(name,"gb18030uni"))
do_gb18030uni(name);
else if (!strcmp(name,"jisx0213"))
do_jisx0213(name);
else
exit(1);
return 0;
}