Initial import

src/libs/extensionsystem/optionsparser.cpp

@@ -0,0 +1,192 @@
+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+** 
+** Non-Open Source Usage  
+** 
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.  
+** 
+** GNU General Public License Usage 
+** 
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception version
+** 1.2, included in the file GPL_EXCEPTION.txt in this package.  
+** 
+***************************************************************************/
+#include "optionsparser.h"
+
+#include <QtCore/QCoreApplication>
+
+using namespace ExtensionSystem;
+using namespace ExtensionSystem::Internal;
+
+static const char *END_OF_OPTIONS = "--";
+const char *OptionsParser::NO_LOAD_OPTION = "-noload";
+const char *OptionsParser::TEST_OPTION = "-test";
+
+OptionsParser::OptionsParser(const QStringList &args,
+        const QMap<QString, bool> &appOptions,
+        QMap<QString, QString> *foundAppOptions,
+        QString *errorString,
+        PluginManagerPrivate *pmPrivate)
+    : m_args(args), m_appOptions(appOptions),
+      m_foundAppOptions(foundAppOptions),
+      m_errorString(errorString),
+      m_pmPrivate(pmPrivate),
+      m_it(m_args.constBegin()),
+      m_end(m_args.constEnd()),
+      m_isDependencyRefreshNeeded(false),
+      m_hasError(false)
+{
+    ++m_it; // jump over program name
+    if (m_errorString)
+        m_errorString->clear();
+    if (m_foundAppOptions)
+        m_foundAppOptions->clear();
+    m_pmPrivate->arguments.clear();
+}
+
+bool OptionsParser::parse()
+{
+    while (!m_hasError) {
+        if (!nextToken()) // move forward
+            break;
+        if (checkForEndOfOptions())
+            break;
+        if (checkForNoLoadOption())
+            continue;
+        if (checkForTestOption())
+            continue;
+        if (checkForAppOption())
+            continue;
+        if (checkForPluginOption())
+            continue;
+        if (checkForUnknownOption())
+            break;
+        // probably a file or something
+        m_pmPrivate->arguments << m_currentArg;
+    }
+    if (m_isDependencyRefreshNeeded)
+        m_pmPrivate->resolveDependencies();
+    return !m_hasError;
+}
+
+bool OptionsParser::checkForEndOfOptions()
+{
+    if (m_currentArg != QLatin1String(END_OF_OPTIONS))
+        return false;
+    while (nextToken()) {
+        m_pmPrivate->arguments << m_currentArg;
+    }
+    return true;
+}
+
+bool OptionsParser::checkForTestOption()
+{
+    if (m_currentArg != QLatin1String(TEST_OPTION))
+        return false;
+    if (nextToken(RequiredToken)) {
+        PluginSpec *spec = m_pmPrivate->pluginByName(m_currentArg);
+        if (!spec) {
+            if (m_errorString)
+                *m_errorString = QCoreApplication::translate("PluginManager",
+                                                             "The plugin '%1' does not exist.").arg(m_currentArg);
+            m_hasError = true;
+        } else {
+            m_pmPrivate->testSpecs.append(spec);
+        }
+    }
+    return true;
+}
+
+bool OptionsParser::checkForNoLoadOption()
+{
+    if (m_currentArg != QLatin1String(NO_LOAD_OPTION))
+        return false;
+    if (nextToken(RequiredToken)) {
+        PluginSpec *spec = m_pmPrivate->pluginByName(m_currentArg);
+        if (!spec) {
+            if (m_errorString)
+                *m_errorString = QCoreApplication::translate("PluginManager",
+                                                             "The plugin '%1' does not exist.").arg(m_currentArg);
+            m_hasError = true;
+        } else {
+            m_pmPrivate->pluginSpecs.remove(spec);
+            delete spec;
+            m_isDependencyRefreshNeeded = true;
+        }
+    }
+    return true;
+}
+
+bool OptionsParser::checkForAppOption()
+{
+    if (!m_appOptions.contains(m_currentArg))
+        return false;
+    QString option = m_currentArg;
+    QString argument;
+    if (m_appOptions.value(m_currentArg) && nextToken(RequiredToken)) {
+        //argument required
+        argument = m_currentArg;
+    }
+    if (m_foundAppOptions)
+        m_foundAppOptions->insert(option, argument);
+    return true;
+}
+
+bool OptionsParser::checkForPluginOption()
+{
+    bool requiresParameter;
+    PluginSpec *spec = m_pmPrivate->pluginForOption(m_currentArg, &requiresParameter);
+    if (!spec)
+        return false;
+    spec->addArgument(m_currentArg);
+    if (requiresParameter && nextToken(RequiredToken)) {
+        spec->addArgument(m_currentArg);
+    }
+    return true;
+}
+
+bool OptionsParser::checkForUnknownOption()
+{
+    if (!m_currentArg.startsWith(QLatin1Char('-')))
+        return false;
+    if (m_errorString)
+        *m_errorString = QCoreApplication::translate("PluginManager",
+                                                     "Unknown option %1").arg(m_currentArg);
+    m_hasError = true;
+    return true;
+}
+
+bool OptionsParser::nextToken(OptionsParser::TokenType type)
+{
+    if (m_it == m_end) {
+        if (type == OptionsParser::RequiredToken) {
+            m_hasError = true;
+            if (m_errorString)
+                *m_errorString = QCoreApplication::translate("PluginManager",
+                                                             "The option %1 requires an argument.").arg(m_currentArg);
+        }
+        return false;
+    }
+    m_currentArg = *m_it;
+    ++m_it;
+    return true;
+}