1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
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 <tqstring.h>
#include <tqstringlist.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
};
/**
* tqStatus 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 tqfinds 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 TQStringList splitArgs( const TQString &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 TQString joinArgs( const TQStringList &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 TQString joinArgsDQ( const TQStringList &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 TQString 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 TQString tildeExpand( const TQString &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 TQString homeDir( const TQString &user );
}
#endif /* _KSHELL_H */
|
