Differential D6848 Diff 20443 src/backends/lua/luasession.cpp

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src/backends/lua/luasession.cpp

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42void LuaSession::login() 42​void LuaSession::login()
43{ 43​{
44 /* 44​ /*
45 * setup Qprocess here 45​ * setup Qprocess here
46 * load the autoscripts 46​ * load the autoscripts
47 */ 47​ */
48 48​
49 m_process = new QProcess(this); 49​ m_process = new QProcess(this);
50 m_process->setProgram(QLatin1String("/usr/bin/lua")); 50​ m_process->setProgram(QLatin1String("/usr/bin/lua"));
filipesaraivaUnsubmitted
Not Done

I must ask to Lucas Negri (the original author of this backend) if it is more interesting to use Lua or Luajit.

filipesaraiva: I must ask to Lucas Negri (the original author of this backend) if it is more interesting to…
51 m_process->setArguments(QStringList() << QLatin1String("-i")); 51​ m_process->setArguments(QStringList() << QLatin1String("-i"));
52 52​
53 m_process->setProcessChannelMode(QProcess::SeparateChannels); 53​ m_process->setProcessChannelMode(QProcess::SeparateChannels);
54 54​
55 connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readIntroMessage())); 55​ connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readIntroMessage()));
56 connect(m_process, SIGNAL(started()), this, SLOT(processStarted())); 56​ connect(m_process, SIGNAL(started()), this, SLOT(processStarted()));
57 m_process->start(); 57​ m_process->start();
58 58​
59 // we need this for tab completion 59​ // we need this for tab completion
60 m_L = luaL_newstate(); 60​ m_L = luaL_newstate();
61 luaL_openlibs(m_L); 61​ luaL_openlibs(m_L);
62} 62​}
63 63​
64void LuaSession::readIntroMessage() 64​void LuaSession::readIntroMessage()
65{ 65​{
66 while(m_process->bytesAvailable()) { 66​ while(m_process->bytesAvailable()) {
67 m_output.append(QString::fromLocal8Bit(m_process->readLine())); 67​ m_output.append(QString::fromLocal8Bit(m_process->readLine()));
68 } 68​ }
69 69​
70 if(!m_output.isEmpty() && m_output.trimmed().endsWith(QLatin1String(">"))) { 70​ if(!m_output.isEmpty() && m_output.trimmed().endsWith(QLatin1String(">"))) {
71 qDebug() << " reading the intro message " << m_output ; 71​ qDebug() << " reading the intro message " << m_output ;
72 m_output.clear(); 72​ m_output.clear();
filipesaraivaUnsubmitted
Not Done

Do you have an example where readIntroMessage will be used?

filipesaraiva: Do you have an example where `readIntroMessage` will be used?
rishabhgAuthorUnsubmitted
Not Done

'Lua 5.2.4 Copyright (C) 1994-2015 Lua.org, PUC-Rio', this is the initial message produced when Lua is started.
If we don't do it this way, we will have to parse it in 'readOutput()' function and I can't find any option to suppress this initial message

rishabhg: 'Lua 5.2.4 Copyright (C) 1994-2015 Lua.org, PUC-Rio', this is the initial message produced…
filipesaraivaUnsubmitted
Not Done

Ah ok! :)

filipesaraiva: Ah ok! :)
73 73​
74 disconnect(m_process, SIGNAL(readyReadStandardOutput()), this , SLOT(readIntroMessage())); 74​ disconnect(m_process, SIGNAL(readyReadStandardOutput()), this , SLOT(readIntroMessage()));
75 connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readOutput())); 75​ connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readOutput()));
76 connect(m_process, SIGNAL(readyReadStandardError()), this, SLOT(readError())); 76​ connect(m_process, SIGNAL(readyReadStandardError()), this, SLOT(readError()));
77 } 77​ }
78 78​
79 79​
80} 80​}
▲ Show 20 Lines • Show All 61 Lines • ▼ Show 20 Line(s)141{
142 /* 142​ /*
143 * get the current command 143​ * get the current command
144 * format it and write to m_process 144​ * format it and write to m_process
145 */ 145​ */
146 QString command = currentExpression->command(); 146​ QString command = currentExpression->command();
147 147​
148 command += QLatin1String("\n"); 148​ command += QLatin1String("\n");
149 149​
150​ if(command.count(QLatin1String("\n")) == 1)
151​ command.prepend(QLatin1String("return "));
152​
150 qDebug() << "final command to be executed " << command << endl; 153​ qDebug() << "final command to be executed " << command << endl;
151 154​
152 m_process->write(command.toLocal8Bit()); 155​ m_process->write(command.toLocal8Bit());
153} 156​}
154 157​
155Cantor::CompletionObject* LuaSession::completionFor(const QString& command, int index) 158​Cantor::CompletionObject* LuaSession::completionFor(const QString& command, int index)
156{ 159​{
157 return new LuaCompletionObject(command, index, this); 160​ return new LuaCompletionObject(command, index, this);
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