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/* This file is part of Eclat.
Copyright (C) 2012-2018 Sergey Poznyakoff.
Eclat 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, or (at your option)
any later version.
Eclat 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 Eclat. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <ctype.h>
#include <assert.h>
int
comment(FILE *fp, int c, int echo)
{
if (c != '/') {
ungetc(c, fp);
return 0;
} else if (echo)
fputc(c, stdout);
if ((c = getc(fp)) == '/') {
do
if (echo) fputc(c, stdout);
while ((c = getc(fp)) != EOF && c != '\n');
return 1;
}
if (echo)
fputc(c, stdout);
if (c == '*') {
do {
do {
c = getc(fp);
if (c == EOF)
return 0;
else if (echo)
fputc(c, stdout);
} while (c != '*');
c = getc(fp);
if (echo)
fputc(c, stdout);
} while (c != '/');
return 1;
} else
if (!echo) {
ungetc(c, fp);
ungetc('/', fp);
}
return 0;
}
int
main(int argc, char **argv)
{
int i;
FILE *fp;
int c;
char buf[128];
size_t lev = 0;
int outchars = 0;
for (i = 1; i < argc; i++) {
fp = fopen(*++argv, "r");
if (!fp) {
perror(*argv);
return 1;
}
/* Skip initial whitespace and comment lines, unless it is the
first file we process. */
do {
while ((c = fgetc(fp)) != EOF && isspace(c))
if (i == 1) fputc(c, stdout);
} while (c != EOF && comment(fp, c, i == 1));
if (c != EOF) {
if (outchars) {
printf(" else ");
outchars = 0;
}
while ((c = fgetc(fp)) != EOF) {
outchars = 1;
putchar(c);
if (c == '}') {
lev = 0;
while ((c = fgetc(fp)) != EOF &&
isspace(c)) {
assert(lev < sizeof(buf));
buf[lev++] = c;
}
if (c == EOF)
break;
else {
assert(lev < sizeof(buf));
buf[lev++] = c;
fwrite(buf, lev, 1, stdout);
}
}
}
}
fclose(fp);
}
return 0;
}
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