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- /*
- This file is part of the KDE libraries
-
- Copyright (c) 2003 Oswald Buddenhagen <ossi@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
- */
- #ifndef _KSHELL_H
- #define _KSHELL_H
-
- #include <qstring.h>
- #include <qstringlist.h>
- #include "kdelibs_export.h"
-
- /**
- * \namespace KShell
- * Provides some basic POSIX shell and bash functionality.
- * @see KStringHandler
- *
- * @since 3.2
- */
- namespace KShell {
-
- /**
- * Flags for splitArgs().
- */
- enum Options {
- NoOptions = 0,
-
- /**
- * Perform tilde expansion.
- */
- TildeExpand = 1,
-
- /**
- * Bail out if a non-quoting and not quoted shell meta character is encoutered.
- * Meta characters are the command separators @p semicolon and @p ampersand,
- * the redirection symbols @p less-than, @p greater-than and the @p pipe @p symbol,
- * the grouping symbols opening and closing @p parens and @p braces, the command
- * substitution symbol @p backquote, the generic substitution symbol @p dollar
- * (if not followed by an apostrophe), the wildcards @p asterisk and
- * @p question @p mark, and the comment symbol @p hash @p mark. Additionally,
- * a variable assignment in the first word is recognized.
- */
- AbortOnMeta = 2
- };
-
- /**
- * Status codes from splitArgs()
- */
- enum Errors {
- /**
- * Success.
- */
- NoError = 0,
-
- /**
- * Indicates a parsing error, like an unterminated quoted string.
- */
- BadQuoting,
-
- /**
- * The AbortOnMeta flag was set and a shell meta character
- * was encoutered.
- */
- FoundMeta
- };
-
- /**
- * Splits @p cmd according to POSIX shell word splitting and quoting rules.
- * Can optionally perform tilde expansion and/or abort if it finds shell
- * meta characters it cannot process.
- *
- * @param cmd the command to split
- * @param flags operation flags, see Options
- * @param err if not NULL, a status code will be stored at the pointer
- * target, see Errors
- * @return a list of unquoted words or an empty list if an error occurred
- */
- KDECORE_EXPORT QStringList splitArgs( const QString &cmd, int flags = 0, int *err = 0 );
-
- /**
- * Quotes and joins @p args together according to POSIX shell rules.
- *
- * @param args a list of strings to quote and join
- * @return a command suitable for shell execution
- */
- KDECORE_EXPORT QString joinArgs( const QStringList &args );
-
- /**
- * Same as above, but $'' is used instead of '' for the quoting.
- * The output is suitable for splitArgs(), bash, zsh and possibly
- * other bourne-compatible shells, but not for plain sh. The advantage
- * is, that control characters (ASCII less than 32) are escaped into
- * human-readable strings.
- *
- * @param args a list of strings to quote and join
- * @return a command suitable for shell execution
- */
- KDECORE_EXPORT QString joinArgsDQ( const QStringList &args );
-
- /**
- * Quotes and joins @p argv together according to POSIX shell rules.
- *
- * @param argv an array of c strings to quote and join.
- * The strings are expected to be in local-8-bit encoding.
- * @param argc maximal number of strings in @p argv. if not supplied,
- * @p argv must be null-terminated.
- * @return a command suitable for shell execution
- */
- KDECORE_EXPORT QString joinArgs( const char * const *argv, int argc = -1 );
-
- /**
- * Performs tilde expansion on @p path. Interprets "~/path" and
- * "~user/path".
- *
- * @param path the path to tilde-expand
- * @return the expanded path
- */
- KDECORE_EXPORT QString tildeExpand( const QString &path );
-
- /**
- * Obtain a @p user's home directory.
- *
- * @param user The name of the user whose home dir should be obtained.
- * An empty string denotes the current user.
- * @return The user's home directory.
- */
- KDECORE_EXPORT QString homeDir( const QString &user );
-
- }
-
-
- #endif /* _KSHELL_H */
-