| 1 | /* Python interpreter main program */
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| 2 |
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| 3 | #include "Python.h"
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| 4 | #include "osdefs.h"
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| 5 | #include "code.h" /* For CO_FUTURE_DIVISION */
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| 6 | #include "import.h"
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| 7 |
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| 8 | #ifdef __VMS
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| 9 | #include <unixlib.h>
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| 10 | #endif
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| 11 |
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| 12 | #if defined(MS_WINDOWS) || defined(__CYGWIN__)
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| 13 | #ifdef HAVE_FCNTL_H
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| 14 | #include <fcntl.h>
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| 15 | #endif
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| 16 | #endif
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| 17 |
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| 18 | #if (defined(PYOS_OS2) && !defined(PYCC_GCC)) || defined(MS_WINDOWS)
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| 19 | #define PYTHONHOMEHELP "<prefix>\\lib"
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| 20 | #else
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| 21 | #if defined(PYOS_OS2) && defined(PYCC_GCC)
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| 22 | #define PYTHONHOMEHELP "<prefix>/Lib"
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| 23 | #else
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| 24 | #define PYTHONHOMEHELP "<prefix>/pythonX.X"
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| 25 | #endif
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| 26 | #endif
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| 27 |
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| 28 | #include "pygetopt.h"
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| 29 |
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| 30 | #define COPYRIGHT \
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| 31 | "Type \"help\", \"copyright\", \"credits\" or \"license\" " \
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| 32 | "for more information."
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| 33 |
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| 34 | #ifdef __cplusplus
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| 35 | extern "C" {
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| 36 | #endif
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| 37 |
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| 38 | /* For Py_GetArgcArgv(); set by main() */
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| 39 | static char **orig_argv;
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| 40 | static int orig_argc;
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| 41 |
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| 42 | /* command line options */
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| 43 | #define BASE_OPTS "c:dEhim:OQ:StuUvVW:xX?"
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| 44 |
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| 45 | #ifndef RISCOS
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| 46 | #define PROGRAM_OPTS BASE_OPTS
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| 47 | #else /*RISCOS*/
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| 48 | /* extra option saying that we are running under a special task window
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| 49 | frontend; especially my_readline will behave different */
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| 50 | #define PROGRAM_OPTS BASE_OPTS "w"
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| 51 | /* corresponding flag */
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| 52 | extern int Py_RISCOSWimpFlag;
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| 53 | #endif /*RISCOS*/
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| 54 |
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| 55 | /* Short usage message (with %s for argv0) */
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| 56 | static char *usage_line =
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| 57 | "usage: %s [option] ... [-c cmd | -m mod | file | -] [arg] ...\n";
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| 58 |
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| 59 | /* Long usage message, split into parts < 512 bytes */
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| 60 | static char *usage_1 = "\
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| 61 | Options and arguments (and corresponding environment variables):\n\
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| 62 | -c cmd : program passed in as string (terminates option list)\n\
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| 63 | -d : debug output from parser (also PYTHONDEBUG=x)\n\
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| 64 | -E : ignore environment variables (such as PYTHONPATH)\n\
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| 65 | -h : print this help message and exit (also --help)\n\
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| 66 | -i : inspect interactively after running script, (also PYTHONINSPECT=x)\n\
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| 67 | and force prompts, even if stdin does not appear to be a terminal\n\
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| 68 | ";
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| 69 | static char *usage_2 = "\
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| 70 | -m mod : run library module as a script (terminates option list)\n\
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| 71 | -O : optimize generated bytecode (a tad; also PYTHONOPTIMIZE=x)\n\
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| 72 | -OO : remove doc-strings in addition to the -O optimizations\n\
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| 73 | -Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew\n\
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| 74 | -S : don't imply 'import site' on initialization\n\
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| 75 | -t : issue warnings about inconsistent tab usage (-tt: issue errors)\n\
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| 76 | -u : unbuffered binary stdout and stderr (also PYTHONUNBUFFERED=x)\n\
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| 77 | ";
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| 78 | static char *usage_3 = "\
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| 79 | see man page for details on internal buffering relating to '-u'\n\
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| 80 | -v : verbose (trace import statements) (also PYTHONVERBOSE=x)\n\
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| 81 | -V : print the Python version number and exit (also --version)\n\
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| 82 | -W arg : warning control (arg is action:message:category:module:lineno)\n\
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| 83 | -x : skip first line of source, allowing use of non-Unix forms of #!cmd\n\
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| 84 | file : program read from script file\n\
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| 85 | - : program read from stdin (default; interactive mode if a tty)\n\
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| 86 | ";
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| 87 | static char *usage_4 = "\
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| 88 | arg ...: arguments passed to program in sys.argv[1:]\n\
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| 89 | Other environment variables:\n\
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| 90 | PYTHONSTARTUP: file executed on interactive startup (no default)\n\
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