From d24f813f3f2a05c112e803e4256b53535895fc98 Mon Sep 17 00:00:00 2001
From: Jedidiah Barber <contact@jedbarber.id.au>
Date: Wed, 14 Jul 2021 11:49:10 +1200
Subject: Initial mirror commit

---
 src/dictionary/DicCsvWriter.cpp | 110 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 src/dictionary/DicCsvWriter.cpp

(limited to 'src/dictionary/DicCsvWriter.cpp')

diff --git a/src/dictionary/DicCsvWriter.cpp b/src/dictionary/DicCsvWriter.cpp
new file mode 100644
index 0000000..f2a5e2e
--- /dev/null
+++ b/src/dictionary/DicCsvWriter.cpp
@@ -0,0 +1,110 @@
+#include "DicCsvWriter.h"
+#include "Dictionary.h"
+#include "DicRecord.h"
+#include "Field.h"
+
+#include <QTextStream>
+
+DicCsvWriter::DicCsvWriter( const Dictionary* aDict ):
+    m_dict( aDict )
+    {
+    }
+
+DicCsvWriter::DicCsvWriter( const QList<DicRecord*> aEntries ):
+    m_dict( NULL ), m_entries( aEntries )
+    {
+    }
+
+QString DicCsvWriter::toCsvString( const CsvExportData& aExportData )
+    {
+    m_params = aExportData;
+    if( m_params.quoteAllFields )
+        m_fieldSepRegExp = QRegExp(".");  // Any character
+    else
+        m_fieldSepRegExp = QRegExp( m_params.fieldSeparators );   // Exact string of separators
+
+    QChar delimiter = m_params.textDelimiter;
+    QString outStr;
+    QTextStream outStream( &outStr );
+
+    // Generate list of selected fields
+    m_selectedFieldNames.clear();
+    if( !m_dict )   // from entries
+        {
+        foreach(DicRecord* entry, m_entries )
+            foreach( QString fieldName, entry->getFields().keys() )
+                if( !m_selectedFieldNames.contains( fieldName ) )
+                    m_selectedFieldNames << fieldName;
+        }
+    else    // from dictionary
+        {
+        if( !m_params.usedCols.isEmpty() )
+            foreach( int col, m_params.usedCols )
+                m_selectedFieldNames << m_dict->field(col)->name();
+        else    // All fields
+            foreach( Field* field, m_dict->fields() )
+                m_selectedFieldNames << field->name();
+
+        }
+    
+    // Write column names
+    if( m_params.writeColumnNames )
+        {
+        QStringList escapedNames;
+        foreach( QString name, m_selectedFieldNames )
+            {
+            if( !delimiter.isNull() && name.contains( m_fieldSepRegExp ) )
+                name = delimiter + name + delimiter;
+            escapedNames << name;
+            }
+        QString header = QString( m_params.commentChar ) + " ";
+        header += escapedNames.join( m_params.fieldSeparators );
+        outStream << header << endl;
+        }
+
+    // For dictionary, copy entries into the local list.
+    if( m_dict )
+        m_entries = m_dict->getRecords();
+
+    // Write entries
+    bool lastLineWasEmpty = false;
+    for( int i = 0; i < m_entries.size(); i++ )
+        {
+        QString curLine = dicEntryToString( m_entries.value( i ) );
+        if( !(lastLineWasEmpty && curLine.isEmpty()) )   // Don't print several empty lines in a row
+            outStream << curLine << endl;
+        lastLineWasEmpty = curLine.isEmpty();
+        }
+    return outStr;
+    }
+
+QString DicCsvWriter::dicEntryToString(const DicRecord* aEntry ) const
+    {
+    if( !aEntry )
+        return QString();
+
+    QStringList fieldValues;    // Convert the fields map into string list. If needed, delimit text ("" or ').
+    QChar delimiter = m_params.textDelimiter;
+    foreach( QString key, m_selectedFieldNames )
+        {
+        QString value = aEntry->getFieldValue( key );
+        /* If the field has embedded field separator or text delimiter (quote),
+         * it must be quoted. */
+        if( !delimiter.isNull() && ( value.contains( m_fieldSepRegExp ) || value.contains(delimiter) ) )
+            {
+            if( value.contains(delimiter) ) // Embedded text delimiter (")
+                value.replace( delimiter, QString(delimiter) + delimiter ); // Escape it with double delimiter ("")
+            value = delimiter + value + delimiter;
+            }
+        fieldValues << value;
+        }
+    // Remove all last empty fields
+    while( !fieldValues.isEmpty() && fieldValues.last().isEmpty() )
+        fieldValues.removeLast();
+    QString res = fieldValues.join( m_params.fieldSeparators );
+
+    /* FUTURE FEATURE: if( iIsCommented )
+            csv.insert( 0, m_params.iCommentChar );  // Insert the comment character */
+    return res;
+    }
+
-- 
cgit