| 1 | This file is help.def, from which is created help.c.
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| 2 | It implements the builtin "help" in Bash.
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| 3 |
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| 4 | Copyright (C) 1987-2003 Free Software Foundation, Inc.
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| 5 |
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| 6 | This file is part of GNU Bash, the Bourne Again SHell.
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| 7 |
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| 8 | Bash is free software; you can redistribute it and/or modify it under
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| 9 | the terms of the GNU General Public License as published by the Free
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| 10 | Software Foundation; either version 2, or (at your option) any later
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| 11 | version.
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| 12 |
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| 13 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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| 14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 16 | for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License along
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| 19 | with Bash; see the file COPYING. If not, write to the Free Software
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| 20 | Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
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| 21 |
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| 22 | $PRODUCES help.c
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| 23 |
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| 24 | $BUILTIN help
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| 25 | $FUNCTION help_builtin
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| 26 | $DEPENDS_ON HELP_BUILTIN
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| 27 | $SHORT_DOC help [-s] [pattern ...]
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| 28 | Display helpful information about builtin commands. If PATTERN is
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| 29 | specified, gives detailed help on all commands matching PATTERN,
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| 30 | otherwise a list of the builtins is printed. The -s option
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| 31 | restricts the output for each builtin command matching PATTERN to
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| 32 | a short usage synopsis.
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| 33 | $END
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| 34 |
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| 35 | #include <config.h>
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| 36 |
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| 37 | #if defined (HELP_BUILTIN)
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| 38 | #include <stdio.h>
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| 39 |
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| 40 | #if defined (HAVE_UNISTD_H)
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| 41 | # ifdef _MINIX
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| 42 | # include <sys/types.h>
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| 43 | # endif
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| 44 | # include <unistd.h>
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| 45 | #endif
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| 46 |
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| 47 | #include <errno.h>
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| 48 |
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| 49 | #include <filecntl.h>
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| 50 |
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| 51 | #include "../bashintl.h"
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| 52 |
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| 53 | #include "../shell.h"
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| 54 | #include "../builtins.h"
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| 55 | #include "../pathexp.h"
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| 56 | #include "common.h"
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| 57 | #include "bashgetopt.h"
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| 58 |
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| 59 | #include <glob/strmatch.h>
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| 60 | #include <glob/glob.h>
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| 61 |
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| 62 | #ifndef errno
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| 63 | extern int errno;
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| 64 | #endif
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| 65 |
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| 66 | static void show_builtin_command_help __P((void));
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| 67 | static void show_longdoc __P((int));
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| 68 |
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| 69 | /* Print out a list of the known functions in the shell, and what they do.
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