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/****************************************************************************
* apps/examples/interpreters/bas/main.c
*
* Copyright (c) 1999-2014 Michael Haardt
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Adapted to NuttX and re-released under a 3-clause BSD license:
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Authors: Alan Carvalho de Assis <Alan Carvalho de Assis>
* Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "bas.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define _(String) String
/****************************************************************************
* Public Functions
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int bas_main(int argc, char *argv[])
#endif
{
char *runFile = (char *)0;
const char *lp = "/dev/null";
int usage = 0;
int o;
int backslash_colon = 0;
int uppercase = 0;
int restricted = 0;
int lpfd;
/* parse arguments */
while ((o = getopt(argc, argv, ":bl:ruVh")) != EOF)
{
switch (o)
{
case 'b':
backslash_colon = 1;
break;
case 'l':
lp = optarg;
break;
case 'u':
uppercase = 1;
break;
case 'r':
restricted = 1;
break;
case 'V':
printf("bas %s\n", CONFIG_INTERPRETER_BAS_VERSION);
exit(0);
break;
case 'h':
usage = 2;
break;
default:
usage = 1;
break;
}
}
if (optind < argc)
{
runFile = argv[optind++];
}
if (usage == 1)
{
fputs(_("Usage: bas [-b] [-l file] [-r] [-u] [program [argument ...]]\n"),
stderr);
fputs(_(" bas -h\n"), stderr);
fputs(_(" bas -V\n"), stderr);
fputs("\n", stderr);
fputs(_("Try `bas -h' for more information.\n"), stderr);
exit(1);
}
if (usage == 2)
{
fputs(_("Usage: bas [-b] [-l file] [-u] [program [argument ...]]\n"),
stdout);
fputs(_(" bas -h\n"), stdout);
fputs(_(" bas -V\n"), stdout);
fputs("\n", stdout);
fputs(_("BASIC interpreter.\n"), stdout);
fputs("\n", stdout);
fputs(_("-b Convert backslashs to colons\n"), stdout);
fputs(_("-l Write LPRINT output to file\n"), stdout);
fputs(_("-r Forbid SHELL\n"), stdout);
fputs(_("-u Output all tokens in uppercase\n"),
stdout);
fputs(_("-h Display this help and exit\n"), stdout);
fputs(_("-V Ooutput version information and exit\n"),
stdout);
exit(0);
}
if ((lpfd = open(lp, O_WRONLY | O_CREAT | O_TRUNC, 0666)) == -1)
{
fprintf(stderr,
_("bas: Opening `%s' for line printer output failed (%s).\n"), lp,
strerror(errno));
exit(2);
}
bas_argc = argc - optind;
bas_argv = &argv[optind];
bas_argv0 = runFile;
bas_init(backslash_colon, restricted, uppercase, lpfd);
if (runFile)
{
bas_runFile(runFile);
}
else
{
bas_interpreter();
}
bas_exit();
return (0);
}
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