freebsd-dev/contrib/gcc/f/ansify.c
David E. O'Brien 1952e2e1c1 Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00

189 lines
3.1 KiB
C

/* ansify.c
Copyright (C) 1997 Free Software Foundation, Inc.
Contributed by James Craig Burley.
This file is part of GNU Fortran.
GNU Fortran 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 2, or (at your option)
any later version.
GNU Fortran 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 GNU Fortran; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include "hconfig.h"
#include "system.h"
#define die_unless(c) \
do if (!(c)) \
{ \
fprintf (stderr, "%s:%lu: %s\n", argv[1], lineno, #c); \
die (); \
} \
while(0)
static void ATTRIBUTE_NORETURN
die (void)
{
exit (1);
}
int
main(int argc, char **argv)
{
int c;
static unsigned long lineno = 1;
die_unless (argc == 2);
printf ("\
/* This file is automatically generated from `%s',\n\
which you should modify instead. */\n\
#line 1 \"%s\"\n\
",
argv[1], argv[1]);
while ((c = getchar ()) != EOF)
{
switch (c)
{
default:
putchar (c);
break;
case '\n':
++lineno;
putchar (c);
break;
case '"':
putchar (c);
for (;;)
{
c = getchar ();
die_unless (c != EOF);
switch (c)
{
case '"':
putchar (c);
goto next_char;
case '\n':
putchar ('\\');
putchar ('n');
putchar ('\\');
putchar ('\n');
++lineno;
break;
case '\\':
putchar (c);
c = getchar ();
die_unless (c != EOF);
putchar (c);
if (c == '\n')
++lineno;
break;
default:
putchar (c);
break;
}
}
break;
case '\'':
putchar (c);
for (;;)
{
c = getchar ();
die_unless (c != EOF);
switch (c)
{
case '\'':
putchar (c);
goto next_char;
case '\n':
putchar ('\\');
putchar ('n');
putchar ('\\');
putchar ('\n');
++lineno;
break;
case '\\':
putchar (c);
c = getchar ();
die_unless (c != EOF);
putchar (c);
if (c == '\n')
++lineno;
break;
default:
putchar (c);
break;
}
}
break;
case '/':
putchar (c);
c = getchar ();
putchar (c);
if (c != '*')
break;
for (;;)
{
c = getchar ();
die_unless (c != EOF);
switch (c)
{
case '\n':
++lineno;
putchar (c);
break;
case '*':
c = getchar ();
die_unless (c != EOF);
if (c == '/')
{
putchar ('*');
putchar ('/');
goto next_char;
}
if (c == '\n')
{
++lineno;
putchar (c);
}
break;
default:
/* Don't bother outputting content of comments. */
break;
}
}
break;
}
next_char:
;
}
die_unless (c == EOF);
return 0;
}