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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
Copyright (C) 2007 by Robert Knight <robertknight@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008
*/
// Own
#include "ShellCommand.h"
//some versions of gcc(4.3) require explicit include
#include <cstdlib>
using namespace Konsole;
// expands environment variables in 'text'
// function copied from kdelibs/kio/kio/kurlcompletion.cpp
static bool expandEnv(QString & text);
ShellCommand::ShellCommand(const QString & fullCommand)
{
bool inQuotes = false;
QString builder;
for ( int i = 0 ; i < fullCommand.count() ; i++ ) {
QChar ch = fullCommand[i];
const bool isLastChar = ( i == fullCommand.count() - 1 );
const bool isQuote = ( ch == QLatin1Char('\'') || ch == QLatin1Char('\"') );
if ( !isLastChar && isQuote ) {
inQuotes = !inQuotes;
} else {
if ( (!ch.isSpace() || inQuotes) && !isQuote ) {
builder.append(ch);
}
if ( (ch.isSpace() && !inQuotes) || ( i == fullCommand.count()-1 ) ) {
_arguments << builder;
builder.clear();
}
}
}
}
ShellCommand::ShellCommand(const QString & command , const QStringList & arguments) : _arguments(arguments)
{
if ( !_arguments.isEmpty() ) {
_arguments[0] = command;
}
}
QString ShellCommand::fullCommand() const
{
return _arguments.join(QLatin1Char(' '));
}
QString ShellCommand::command() const
{
if ( !_arguments.isEmpty() ) {
return _arguments[0];
} else {
return QString();
}
}
QStringList ShellCommand::arguments() const
{
return _arguments;
}
bool ShellCommand::isRootCommand() const
{
Q_ASSERT(0); // not implemented yet
return false;
}
bool ShellCommand::isAvailable() const
{
Q_ASSERT(0); // not implemented yet
return false;
}
QStringList ShellCommand::expand(const QStringList & items)
{
QStringList result;
for(const QString &item : items) {
result << expand(item);
}
return result;
}
QString ShellCommand::expand(const QString & text)
{
QString result = text;
expandEnv(result);
return result;
}
/*
* expandEnv
*
* Expand environment variables in text. Escaped '$' characters are ignored.
* Return true if any variables were expanded
*/
static bool expandEnv( QString & text )
{
// Find all environment variables beginning with '$'
//
int pos = 0;
bool expanded = false;
while ( (pos = text.indexOf(QLatin1Char('$'), pos)) != -1 ) {
// Skip escaped '$'
//
if ( pos > 0 && text.at(pos-1) == QLatin1Char('\\') ) {
pos++;
}
// Variable found => expand
//
else {
// Find the end of the variable = next '/' or ' '
//
int pos2 = text.indexOf( QLatin1Char(' '), pos+1 );
int pos_tmp = text.indexOf( QLatin1Char('/'), pos+1 );
if ( pos2 == -1 || (pos_tmp != -1 && pos_tmp < pos2) ) {
pos2 = pos_tmp;
}
if ( pos2 == -1 ) {
pos2 = text.length();
}
// Replace if the variable is terminated by '/' or ' '
// and defined
//
if ( pos2 >= 0 ) {
int len = pos2 - pos;
QString key = text.mid( pos+1, len-1);
QString value =
QString::fromLocal8Bit( qgetenv(key.toLocal8Bit().constData()) );
if ( !value.isEmpty() ) {
expanded = true;
text.replace( pos, len, value );
pos = pos + value.length();
} else {
pos = pos2;
}
}
}
}
return expanded;
}
|
