Initial import of kscope 1.6.2

1 files changed, 172 insertions, 0 deletions

diff --git a/src/configfrontend.cpp b/src/configfrontend.cpp
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+++ b/src/configfrontend.cpp
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+/***************************************************************************
+ *
+ * Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************/
+
+#include <kstandarddirs.h>
+#include "configfrontend.h"
+
+/**
+ * Class constructor.
+ * @param	bAutoDelete	True to destroy the object when the process ends,
+ *						false otherwise
+ */
+ConfigFrontend::ConfigFrontend(bool bAutoDelete) : 
+	Frontend(1, bAutoDelete)
+{
+}
+
+/**
+ * Class destructor.
+ */
+ConfigFrontend::~ConfigFrontend()
+{
+}
+
+/**
+ * Executes the script using the "sh" shell.
+ * @param	sCscopePath		If given, overrides the automatic check for Cscope's
+ *							path
+ * @param	sCtagsPath		If given, overrides the automatic check for Ctags'
+ *							path
+ * @param	sDotPath		If given, overrides the automatic check for Dot's
+ *							path
+ * @param	bCscopeOptsOnly	Only verify cscope's path and options
+ * @return	true if successful, false otherwise
+ */
+bool ConfigFrontend::run(const QString& sCscopePath, 
+	const QString& sCtagsPath, const QString& sDotPath,
+	bool bCscopeOptsOnly)
+{
+	QStringList slArgs;
+	KStandardDirs sd;
+	QString sScript;
+	
+	// Execute using the user's shell
+	setUseShell(true);
+	
+	// Find the configuration script
+	sScript = sd.findResource("data", "kscope/kscope_config");
+	if (sScript.isEmpty())
+		return false;
+		
+	// Set command line arguments
+	slArgs.append("sh");
+	slArgs.append(sScript);
+	
+	if (bCscopeOptsOnly)
+		slArgs.append("-co");
+		
+	// Initialise environment
+	setEnvironment("CSCOPE_PATH", sCscopePath);
+	setEnvironment("CTAGS_PATH", sCtagsPath);
+	setEnvironment("DOT_PATH", sDotPath);
+	
+	// Parser initialisation
+	m_delim = Newline;
+	m_nNextResult = CscopePath;
+	
+	if (!Frontend::run("sh", slArgs))
+		return false;
+		
+	emit test(CscopePath);
+	return true;
+}
+
+/**
+ * Handles tokens generated by the script.
+ * Each token represents a line in the script's output, and is the result of
+ * a different test.
+ * @param	sToken	The generated token
+ */
+Frontend::ParseResult ConfigFrontend::parseStdout(QString& sToken, 
+	ParserDelim)
+{
+	uint nResult;
+	
+	// Store the type of test for which the given token in the result
+	nResult = m_nNextResult;
+	
+	// Determine the next test
+	switch (m_nNextResult) {
+	case CscopePath:
+		if (sToken == "ERROR")
+			m_nNextResult = CtagsPath;
+		else
+			m_nNextResult = CscopeVersion;
+		break;
+		
+	case CscopeVersion:
+		if (sToken == "ERROR")
+			m_nNextResult = CtagsPath;
+		else
+			m_nNextResult = CscopeVerbose;
+		break;
+		
+	case CscopeVerbose:
+		m_nNextResult = CscopeSlowPath;
+		break;
+		
+	case CscopeSlowPath:
+		m_nNextResult = CtagsPath;
+		break;
+		
+	case CtagsPath:
+		if (sToken == "ERROR")
+			m_nNextResult = END;
+		else
+			m_nNextResult = CtagsExub;
+		break;
+	
+	case CtagsExub:
+		if (sToken == "ERROR")
+			m_nNextResult = END;
+		else
+			m_nNextResult = DotPath;
+		break;
+		
+	case DotPath:
+		if (sToken == "ERROR")
+			m_nNextResult = END;
+		else
+			m_nNextResult = DotPlain;
+		break;
+	
+	case DotPlain:
+		m_nNextResult = END;
+		break;
+		
+	case END:
+		return DiscardToken;
+	}
+	
+	// Publish the result and the type of the next test
+	emit result(nResult, sToken);
+	emit test(m_nNextResult);
+	
+	return DiscardToken;
+}
+
+#include "configfrontend.moc"