300 lines
7.6 KiB
C
300 lines
7.6 KiB
C
/*
|
|
* Convert ligature files to QEmacs binary internal format
|
|
*
|
|
* Copyright (c) 2002 Fabrice Bellard.
|
|
* Copyright (c) 2007-2008 Charlie Gordon.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <getopt.h>
|
|
#include <assert.h>
|
|
|
|
#include "cutils.h"
|
|
|
|
static inline char *skipspaces(char *p) {
|
|
while (isspace((unsigned char)*p))
|
|
p++;
|
|
return p;
|
|
}
|
|
|
|
static int unicode_to_utf8(char *buf, unsigned int c)
|
|
{
|
|
char *q;
|
|
|
|
q = buf;
|
|
if (c < 0x80) {
|
|
*q++ = c;
|
|
} else {
|
|
if (c < 0x800) {
|
|
*q++ = (c >> 6) | 0xc0;
|
|
} else {
|
|
if (c < 0x10000) {
|
|
*q++ = (c >> 12) | 0xe0;
|
|
} else {
|
|
if (c < 0x00200000) {
|
|
*q++ = (c >> 18) | 0xf0;
|
|
} else {
|
|
if (c < 0x04000000) {
|
|
*q++ = (c >> 24) | 0xf8;
|
|
} else {
|
|
*q++ = (c >> 30) | 0xfc;
|
|
*q++ = ((c >> 24) & 0x3f) | 0x80;
|
|
}
|
|
*q++ = ((c >> 18) & 0x3f) | 0x80;
|
|
}
|
|
*q++ = ((c >> 12) & 0x3f) | 0x80;
|
|
}
|
|
*q++ = ((c >> 6) & 0x3f) | 0x80;
|
|
}
|
|
*q++ = (c & 0x3f) | 0x80;
|
|
}
|
|
*q = '\0';
|
|
return q - buf;
|
|
}
|
|
|
|
static void put_be16(FILE *outfile, int off)
|
|
{
|
|
fputc((off >> 8) & 0xff, outfile);
|
|
fputc((off) & 0xff, outfile);
|
|
}
|
|
|
|
#define MAX_LIGS 5000
|
|
|
|
typedef struct Ligature {
|
|
int buf_in[20], buf_out[20];
|
|
int buf_in_size, buf_out_size;
|
|
} Ligature;
|
|
|
|
static Ligature ligs[MAX_LIGS];
|
|
static int nb_ligs;
|
|
|
|
static int sort_func(const void *a1, const void *b1)
|
|
{
|
|
const Ligature *a = a1;
|
|
const Ligature *b = b1;
|
|
int val;
|
|
|
|
val = a->buf_in[0] - b->buf_in[0];
|
|
if (val == 0 &&
|
|
a->buf_in_size >= 2 && b->buf_in_size >= 2) {
|
|
val = a->buf_in[1] - b->buf_in[1];
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static void help(void)
|
|
{
|
|
printf("usage: ligtoqe [-u] sourcefile.lig output_ligature_file\n"
|
|
"Build a ligature resource file for qemacs\n"
|
|
"\n"
|
|
"-u : output an UTF8 encode summy on stdout\n");
|
|
exit(1);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
FILE *f, *outfile;
|
|
char buf[1024], *p;
|
|
Ligature *l;
|
|
char buf1[128];
|
|
int i, c, to_utf8, j, l1, l2, n;
|
|
const char *lig_filename;
|
|
const char *lig_res_filename;
|
|
int subst1_count, subst2_count, subst_long_count;
|
|
|
|
to_utf8 = 0;
|
|
for (;;) {
|
|
c = getopt(argc, argv, "uh");
|
|
if (c == -1)
|
|
break;
|
|
switch (c) {
|
|
case 'h':
|
|
help();
|
|
break;
|
|
case 'u':
|
|
to_utf8 = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (optind + 2 > argc)
|
|
help();
|
|
lig_filename = argv[optind++];
|
|
lig_res_filename = argv[optind++];
|
|
|
|
f = fopen(lig_filename, "r");
|
|
if (!f) {
|
|
perror(lig_filename);
|
|
return 1;
|
|
}
|
|
for (;;) {
|
|
if (fgets(buf, sizeof(buf), f) == NULL)
|
|
break;
|
|
p = buf + strlen(buf);
|
|
if (p > buf && p[-1] == '\n')
|
|
*--p = '\0';
|
|
|
|
p = skipspaces(buf);
|
|
|
|
if (*p == '#' || *p == '\0') {
|
|
if (to_utf8) {
|
|
printf("%s\n", buf);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
l = &ligs[nb_ligs++];
|
|
|
|
l->buf_in_size = 0;
|
|
for (;;) {
|
|
p = skipspaces(p);
|
|
if (*p == '=')
|
|
break;
|
|
if (*p == '\0') {
|
|
fprintf(stderr, "'=' expected\n");
|
|
exit(1);
|
|
}
|
|
l->buf_in[l->buf_in_size++] = strtoul(p, &p, 0);
|
|
}
|
|
p++;
|
|
|
|
l->buf_out_size = 0;
|
|
for (;;) {
|
|
p = skipspaces(p);
|
|
/* stop at the first comment */
|
|
if (*p == '\0' || *p == '/')
|
|
break;
|
|
l->buf_out[l->buf_out_size++] = strtoul(p, &p, 0);
|
|
}
|
|
|
|
if (l->buf_in_size < 1 ||
|
|
l->buf_out_size < 1) {
|
|
fprintf(stderr, "syntax error: '%s'\n", buf);
|
|
exit(1);
|
|
}
|
|
|
|
/* output UTF8 encoded list */
|
|
if (to_utf8) {
|
|
printf("%s // ", buf);
|
|
for (i = 0; i < l->buf_in_size; i++) {
|
|
unicode_to_utf8(buf1, l->buf_in[i]);
|
|
printf("%s ", buf1);
|
|
}
|
|
printf("=");
|
|
for (i = 0; i < l->buf_out_size; i++) {
|
|
unicode_to_utf8(buf1, l->buf_out[i]);
|
|
printf(" %s", buf1);
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
fclose(f);
|
|
|
|
|
|
/* sort everything */
|
|
qsort(ligs, nb_ligs, sizeof(Ligature), sort_func);
|
|
|
|
outfile = fopen(lig_res_filename, "w");
|
|
if (!outfile) {
|
|
perror(lig_res_filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* header */
|
|
fwrite("liga", 1, 4, outfile);
|
|
|
|
/* number of entries */
|
|
put_be16(outfile, 0);
|
|
put_be16(outfile, 0);
|
|
put_be16(outfile, 0);
|
|
|
|
/* output the subst table */
|
|
n = 0;
|
|
for (i = 0; i < nb_ligs; i++) {
|
|
l = &ligs[i];
|
|
if (l->buf_in_size == 1) {
|
|
if (l->buf_out_size != 1) {
|
|
fprintf(stderr, "substitutions of only one char are handled\n");
|
|
exit(1);
|
|
}
|
|
put_be16(outfile, l->buf_in[0]);
|
|
put_be16(outfile, l->buf_out[0]);
|
|
n++;
|
|
}
|
|
}
|
|
subst1_count = n;
|
|
|
|
/* output the ligature table (2 chars -> 1 char) */
|
|
j = 0;
|
|
l1 = 0;
|
|
l2 = 0;
|
|
n = 0;
|
|
for (i = 0; i < nb_ligs; i++) {
|
|
l = &ligs[i];
|
|
if (l->buf_in_size >= 2) {
|
|
if (l->buf_in_size > 2 || l->buf_out_size > 1) {
|
|
if (l1 == l->buf_in[0] &&
|
|
l2 == l->buf_in[1]) {
|
|
} else {
|
|
put_be16(outfile, l->buf_in[0]);
|
|
put_be16(outfile, l->buf_in[1]);
|
|
put_be16(outfile, 0);
|
|
l1 = l->buf_in[0];
|
|
l2 = l->buf_in[1];
|
|
n++;
|
|
}
|
|
} else {
|
|
put_be16(outfile, l->buf_in[0]);
|
|
put_be16(outfile, l->buf_in[1]);
|
|
put_be16(outfile, l->buf_out[0]);
|
|
n++;
|
|
}
|
|
}
|
|
}
|
|
|
|
subst2_count = n;
|
|
|
|
/* output the long ligature table */
|
|
n = 0;
|
|
for (i = 0; i < nb_ligs; i++) {
|
|
l = &ligs[i];
|
|
if (l->buf_in_size > 2 || l->buf_out_size > 1) {
|
|
put_be16(outfile, l->buf_in_size);
|
|
put_be16(outfile, l->buf_out_size);
|
|
for (j = 0; j < l->buf_in_size; j++)
|
|
put_be16(outfile, l->buf_in[j]);
|
|
for (j = 0; j < l->buf_out_size; j++)
|
|
put_be16(outfile, l->buf_out[j]);
|
|
n += 2 + l->buf_in_size + l->buf_out_size;
|
|
}
|
|
}
|
|
put_be16(outfile, 0);
|
|
n++;
|
|
|
|
subst_long_count = n;
|
|
|
|
fseek(outfile, 4, SEEK_SET);
|
|
put_be16(outfile, subst1_count);
|
|
put_be16(outfile, subst2_count);
|
|
put_be16(outfile, subst_long_count);
|
|
|
|
fclose(outfile);
|
|
|
|
return 0;
|
|
}
|