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/* CPP main program, using CPP Library.
* Copyright (C) 1995 Free Software Foundation, Inc.
* Written by Per Bothner, 1994-95.
* Copyright (C) 2003-2011 Kim Woelders
*
* 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 2, 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 <http://www.gnu.org/licenses/>.
*
* In other words, you are welcome to use, share and improve this program.
* You are forbidden to forbid anyone else to use, share and improve
* what you give them. Help stamp out software-hoarding! */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "cpplib.h"
#define EPP_DEBUG 0
cpp_reader parse_in;
cpp_options options;
int
main(int argc, char **argv)
{
char *p;
int i;
int argi = 1; /* Next argument to handle. */
struct cpp_options *opts = &options;
enum cpp_token kind;
#if EPP_DEBUG
int got_text = 0;
#endif
p = argv[0] + strlen(argv[0]);
#ifndef __EMX__
while (p != argv[0] && p[-1] != '/')
#else
while (p != argv[0] && p[-1] != '/' && p[-1] != '\\')
#endif
--p;
progname = p;
init_parse_file(&parse_in);
parse_in.data = opts;
init_parse_options(opts);
argi += cpp_handle_options(&parse_in, argc - argi, argv + argi);
if (argi < argc)
cpp_fatal("Invalid option `%s'", argv[argi]);
parse_in.show_column = 1;
i = push_parse_file(&parse_in, opts->in_fname);
if (i != SUCCESS_EXIT_CODE)
return i;
/* Now that we know the input file is valid, open the output. */
if (!opts->out_fname || !strcmp(opts->out_fname, ""))
opts->out_fname = "stdout";
else if (!freopen(opts->out_fname, "w", stdout))
cpp_pfatal_with_name(&parse_in, opts->out_fname);
for (i = 0;; i++)
{
kind = cpp_get_token(&parse_in);
#if EPP_DEBUG
fprintf(stderr, "%03d: kind=%d len=%d out=%d text=%d\n", i,
kind, CPP_WRITTEN(&parse_in), !opts->no_output, got_text);
#endif
switch (kind)
{
case CPP_EOF:
goto done;
case CPP_HSPACE:
continue;
case CPP_VSPACE:
break;
default:
case CPP_OTHER:
case CPP_NAME:
case CPP_NUMBER:
case CPP_CHAR:
case CPP_STRING:
case CPP_LPAREN:
case CPP_RPAREN:
case CPP_LBRACE:
case CPP_RBRACE:
case CPP_COMMA:
case CPP_SEMICOLON:
case CPP_3DOTS:
#if EPP_DEBUG
got_text = 1;
#endif
continue;
case CPP_COMMENT:
case CPP_DIRECTIVE:
case CPP_POP:
continue;
}
#if EPP_DEBUG
fprintf(stderr, "'");
fwrite(parse_in.token_buffer, 1, CPP_WRITTEN(&parse_in), stderr);
fprintf(stderr, "'\n");
#endif
if (!opts->no_output)
{
size_t n;
n = CPP_WRITTEN(&parse_in);
if (fwrite(parse_in.token_buffer, 1, n, stdout) != n)
exit(FATAL_EXIT_CODE);
}
parse_in.limit = parse_in.token_buffer;
#if EPP_DEBUG
got_text = 0;
#endif
}
done:
cpp_finish(&parse_in);
if (parse_in.errors)
exit(FATAL_EXIT_CODE);
exit(SUCCESS_EXIT_CODE);
}
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