1 /* $Id: shell.hg,v 1.2 2003/01/22 21:38:35 murrayc Exp $ */
3 /* Copyright (C) 2002 The gtkmm Development Team
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <glibmm/arrayhandle.h>
26 #include <glibmm/error.h>
28 #include <glibmmconfig.h>
29 GLIBMM_USING_STD(string)
35 /** @defgroup ShellUtils Shell-related Utilities
36 * Shell-like command line handling.
40 /** Exception class for shell utility errors.
42 _WRAP_GERROR(ShellError, GShellError, G_SHELL_ERROR, NO_GTYPE)
45 /** Parses a command line into an argument vector, in much the same way the
46 * shell would, but without many of the expansions the shell would perform
47 * (variable expansion, globs, operators, filename expansion, etc.\ are not
48 * supported). The results are defined to be the same as those you would
49 * get from a UNIX98 /bin/sh, as long as the input contains none of the
50 * unsupported shell expansions. If the input does contain such expansions,
51 * they are passed through literally.
52 * @param command_line Command line to parse.
53 * @return Array of args (The generic ArrayHandle will be implicitly
54 * converted to any STL compatible container type).
55 * @throw Glib::ShellError
57 Glib::ArrayHandle<std::string> shell_parse_argv(const std::string& command_line);
59 /** Quotes a string so that the shell (/bin/sh) will interpret the quoted
60 * string to mean @a unquoted_string. If you pass a filename to the shell,
61 * for example, you should first quote it with this function. The quoting
62 * style used is undefined (single or double quotes may be used).
63 * @param unquoted_string A literal string.
64 * @return A quoted string.
66 std::string shell_quote(const std::string& unquoted_string);
68 /** Unquotes a string as the shell (/bin/sh) would. Only handles quotes; if
69 * a string contains file globs, arithmetic operators, variables, backticks,
70 * redirections, or other special-to-the-shell features, the result will be
71 * different from the result a real shell would produce (the variables,
72 * backticks, etc. will be passed through literally instead of being expanded).
73 * This function is guaranteed to succeed if applied to the result of
74 * shell_quote(). If it fails, it throws a Glib::ShellError exception. The
75 * @a quoted_string need not actually contain quoted or escaped text;
76 * shell_unquote() simply goes through the string and unquotes/unescapes
77 * anything that the shell would. Both single and double quotes are handled,
78 * as are escapes including escaped newlines.
80 * Shell quoting rules are a bit strange. Single quotes preserve the literal
81 * string exactly. Escape sequences are not allowed; not even <tt>\\'</tt> --
82 * if you want a <tt>'</tt> in the quoted text, you have to do something like
83 * <tt>'foo'\\''bar'</tt>. Double quotes allow <tt>$</tt>, <tt>`</tt>,
84 * <tt>"</tt>, <tt>\\</tt>, and newline to be escaped with backslash.
85 * Otherwise double quotes preserve things literally.
87 * @param quoted_string Shell-quoted string.
88 * @return An unquoted string.
89 * @throw Glib::ShellError
91 std::string shell_unquote(const std::string& quoted_string);
93 /** @} group ShellUtils */