Adding global commandline parameters

Jamulus.pro

@@ -380,7 +380,9 @@ HEADERS += src/buffer.h \
     src/recorder/jamrecorder.h \
     src/recorder/creaperproject.h \
     src/recorder/cwavestream.h \
-    src/signalhandler.h
+    src/signalhandler.h \
+    src/cmdline.h
+
 
 !contains(CONFIG, "serveronly") {
     HEADERS += src/client.h \
@@ -490,7 +492,8 @@ SOURCES += src/buffer.cpp \
     src/util.cpp \
     src/recorder/jamrecorder.cpp \
     src/recorder/creaperproject.cpp \
-    src/recorder/cwavestream.cpp
+    src/recorder/cwavestream.cpp \
+    src/cmdline.cpp
 
 !contains(CONFIG, "serveronly") {
     SOURCES += src/client.cpp \

src/cmdline.cpp

@@ -0,0 +1,226 @@
+/******************************************************************************\
+ * Copyright (c) 2022
+ *
+ * Author(s):
+ *  Peter Goderie (pgScorpio)
+ *
+ ******************************************************************************
+ *
+ * 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
+ *
+\******************************************************************************/
+
+#include "cmdline.h"
+#include <QDebug>
+
+/************************************************
+  Statics to be assigned from main ()
+ ************************************************/
+
+int    CCommandline::argc = 0;
+char** CCommandline::argv = NULL;
+
+CCommandline::CCommandline ( tOnArgumentError* onArgumentErrorFunc ) : onArgumentError ( onArgumentErrorFunc )
+{
+    if ( ( argc == 0 ) || ( argv == NULL ) )
+    {
+        QString errmsg ( "CCommandline::argc and CCommandline::argv are not initialized from main() !" );
+
+        if ( onArgumentErrorFunc )
+        {
+            onArgumentErrorFunc ( errmsg );
+        }
+        else
+        {
+            qCritical() << errmsg;
+            exit ( 1 );
+        }
+    }
+
+    reset();
+}
+
+int CCommandline::GetArgumentList ( QStringList& argumentList )
+{
+    argumentList.clear();
+
+    for ( int i = 1; i < argc; i++ )
+    {
+        argumentList.append ( argv[i] );
+    }
+
+    return argumentList.size();
+}
+
+/************************************************
+ Get full command line as a single string
+ ************************************************/
+
+QString CCommandline::Commandline()
+{
+    QString cmdline = argv[0];
+
+    for ( int i = 1; i < argc; i++ )
+    {
+        cmdline += " ";
+        cmdline += argv[i];
+    }
+
+    return cmdline;
+}
+
+QString CCommandline::Argument ( int i ) // i = 1..ArgumentCount()
+{
+    if ( ( i >= 0 ) && ( i < argc ) )
+    {
+        return QString ( argv[i] );
+    }
+
+    return QString();
+}
+
+/************************************************
+ sequencial parse functions
+ using the argument index: 1 <= i < argc
+ ************************************************/
+
+bool CCommandline::GetFlagArgument ( int& i, const QString& strShortOpt, const QString& strLongOpt )
+{
+    if ( ( !strShortOpt.compare ( argv[i] ) ) || ( !strLongOpt.compare ( argv[i] ) ) )
+    {
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+bool CCommandline::GetStringArgument ( int& i, const QString& strShortOpt, const QString& strLongOpt, QString& strArg )
+{
+    if ( ( !strShortOpt.compare ( argv[i] ) ) || ( !strLongOpt.compare ( argv[i] ) ) )
+    {
+        if ( ++i >= argc )
+        {
+            if ( onArgumentError )
+            {
+                onArgumentError ( QString ( "%1: '%2' needs a string argument." ).arg ( argv[0] ).arg ( argv[i - 1] ) );
+            }
+
+            return false;
+        }
+
+        strArg = argv[i];
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+bool CCommandline::GetNumericArgument ( int&           i,
+                                        const QString& strShortOpt,
+                                        const QString& strLongOpt,
+                                        double         rRangeStart,
+                                        double         rRangeStop,
+                                        double&        rValue )
+{
+    if ( ( !strShortOpt.compare ( argv[i] ) ) || ( !strLongOpt.compare ( argv[i] ) ) )
+    {
+        QString errmsg = "%1: '%2' needs a numeric argument from '%3' to '%4'.";
+
+        if ( ++i >= argc )
+        {
+            if ( onArgumentError )
+            {
+                onArgumentError ( errmsg.arg ( argv[0] ).arg ( argv[i - 1] ).arg ( rRangeStart ).arg ( rRangeStop ) );
+            }
+
+            return false;
+        }
+
+        char* p;
+        rValue = strtod ( argv[i], &p );
+        if ( *p || ( rValue < rRangeStart ) || ( rValue > rRangeStop ) )
+        {
+            if ( onArgumentError )
+            {
+                onArgumentError ( errmsg.arg ( argv[0] ).arg ( argv[i - 1] ).arg ( rRangeStart ).arg ( rRangeStop ) );
+            }
+
+            if ( rValue < rRangeStart )
+            {
+                rValue = rRangeStart;
+            }
+            else if ( rValue > rRangeStop )
+            {
+                rValue = rRangeStop;
+            }
+
+            return true;
+        }
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+/************************************************
+ find and get a specific argument:
+ ************************************************/
+
+bool CCommandline::GetFlagArgument ( const QString& strShortOpt, const QString& strLongOpt )
+{
+    for ( int i = 1; i < argc; i++ )
+    {
+        if ( GetFlagArgument ( i, strShortOpt, strLongOpt ) )
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool CCommandline::GetStringArgument ( const QString& strShortOpt, const QString& strLongOpt, QString& strArg )
+{
+    for ( int i = 1; i < argc; i++ )
+    {
+        if ( GetStringArgument ( i, strShortOpt, strLongOpt, strArg ) )
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool CCommandline::GetNumericArgument ( const QString& strShortOpt, const QString& strLongOpt, double rRangeStart, double rRangeStop, double& rValue )
+{
+    for ( int i = 1; i < argc; i++ )
+    {
+        if ( GetNumericArgument ( i, strShortOpt, strLongOpt, rRangeStart, rRangeStop, rValue ) )
+        {
+            return true;
+        }
+    }
+
+    return false;
+}