Rename ApplicationCode to ApplicationLibCode

ApplicationLibCode/FileInterface/RifRoffReader.cpp

@@ -0,0 +1,141 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2020 Equinor ASA
+//
+//  ResInsight 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 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RifRoffReader.h"
+
+#include <QFile>
+#include <QTextStream>
+
+const QString codeValuesString = QString( "array int codeValues" );
+const QString codeNamesString  = QString( "array char codeNames" );
+const QString headerString     = QString( "roff-asc" );
+
+bool RifRoffReader::isCodeValuesDefinition( const QString& line )
+{
+    return line.startsWith( codeValuesString );
+}
+
+bool RifRoffReader::isCodeNamesDefinition( const QString& line )
+{
+    return line.startsWith( codeNamesString );
+}
+
+bool RifRoffReader::isCorrectHeader( const QString& line )
+{
+    return line.startsWith( headerString );
+}
+
+int RifRoffReader::extractNumberAfterString( const QString& line, const QString& prefix )
+{
+    QString copiedLine( line );
+
+    bool ok;
+    int  num = copiedLine.remove( prefix ).toInt( &ok );
+    if ( !ok )
+    {
+        throw RifRoffReaderException( "Unexpected value: not an integer." );
+    }
+    return num;
+}
+
+int RifRoffReader::extractCodeValuesCount( const QString& line )
+{
+    return extractNumberAfterString( line, codeValuesString );
+}
+
+int RifRoffReader::extractCodeNamesCount( const QString& line )
+{
+    return extractNumberAfterString( line, codeNamesString );
+}
+
+void RifRoffReader::readCodeNames( const QString& filename, std::map<int, QString>& codeNames )
+{
+    QFile file( filename );
+    if ( !file.open( QIODevice::ReadOnly | QIODevice::Text ) )
+    {
+        throw RifRoffReaderException( "Unable to open roff file." );
+    }
+
+    bool isFirstLine   = true;
+    int  numCodeValues = -1;
+    int  numCodeNames  = -1;
+
+    std::vector<int>     readCodeValues;
+    std::vector<QString> readCodeNames;
+
+    QTextStream in( &file );
+    while ( !in.atEnd() )
+    {
+        QString line = in.readLine();
+
+        // Check that the first line has the roff-asc header
+        if ( isFirstLine )
+        {
+            if ( !isCorrectHeader( line ) )
+            {
+                throw RifRoffReaderException( "Unexpected file type: roff-asc header missing." );
+            }
+            isFirstLine = false;
+        }
+        else if ( isCodeValuesDefinition( line ) )
+        {
+            // Expected line:
+            // array int codeValues 99
+            numCodeValues = extractCodeValuesCount( line );
+            for ( int i = 0; i < numCodeValues; i++ )
+            {
+                // The code values comes next, can be multiple per line.
+                int codeValue;
+                in >> codeValue;
+                readCodeValues.push_back( codeValue );
+            }
+        }
+        else if ( isCodeNamesDefinition( line ) )
+        {
+            // Expected line:
+            // array char codeNames 99
+            numCodeNames = extractCodeNamesCount( line );
+            for ( int i = 0; i < numCodeNames; i++ )
+            {
+                // Read code names. Assumes one name per line.
+                QString codeName = in.readLine();
+                readCodeNames.push_back( codeName.trimmed().remove( "\"" ) );
+            }
+        }
+    }
+
+    if ( numCodeValues == -1 )
+    {
+        throw RifRoffReaderException( "Code values not found." );
+    }
+
+    if ( numCodeNames == -1 )
+    {
+        throw RifRoffReaderException( "Code names not found." );
+    }
+
+    if ( numCodeNames != numCodeValues )
+    {
+        throw RifRoffReaderException( "Inconsistent code names and values: must be equal length." );
+    }
+
+    for ( int i = 0; i < numCodeNames; i++ )
+    {
+        codeNames[readCodeValues[i]] = readCodeNames[i];
+    }
+}