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Diffstat (limited to 'apps/interpreters/bas/bas_main.c')
| -rw-r--r-- | apps/interpreters/bas/bas_main.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/apps/interpreters/bas/bas_main.c b/apps/interpreters/bas/bas_main.c new file mode 100644 index 000000000..f0062aa8b --- /dev/null +++ b/apps/interpreters/bas/bas_main.c @@ -0,0 +1,204 @@ +/**************************************************************************** + * apps/interpreters/bas/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_fs.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); + } + + g_bas_argc = argc - optind; + g_bas_argv = &argv[optind]; + g_bas_argv0 = runFile; + g_bas_end = false; + + bas_init(backslash_colon, restricted, uppercase, lpfd); + if (runFile) + { + bas_runFile(runFile); + } + else + { + bas_interpreter(); + } + + /* Terminate the output stream with a newline BEFORE closing devices */ + + FS_putChar(STDCHANNEL, '\n'); + + /* Release resouces and close files and devices */ + + bas_exit(); + return 0; +} |