Added ability to identify arrays in the csv and place those into table arrays (#4381)

- Fixed hi2isis MRO:ADC_TIMING_SETTINGS label conversion issue [4290](https://github.com/USGS-Astrogeology/ISIS3/issues/4290)

- Changed csv2table to identify headers with arrays and create table fields as arrays instead of single fields for each element [3676](https://github.com/USGS-Astrogeology/ISIS3/issues/3676)

## [4.4.0] - 2021-02-11

### Added

  </brief>

  <description>

    This application converts a CSV file to a table and attaches it to a cube

    <p>

    This application converts a CSV file to a table and attaches it to a cube.

    The first row of the CSV will be used as the fieldnames for the table.

    The contents of the CSV file will be converted to floating point numbers

    before they are inserted into the table.

    </p>

    <p>

    A single table field with multiple values will be created for consecutive CSV columns

    with the same column name followed by an index inside parentheses.

    The index must start at zero and increase from left to right.

    For example a CSV header line like: "A, B(0), B(1), B(2), C", will create three

    table fields, A with size=1, B with size=3, and C with size=1.

    </p>

  </description>

  <category>

    <change name="Jesse Mapel" date="2018-09-04">

      Original version

    </change>

    <change name="Stuart Sides" date="2021-03-20">

      Added ability to convert CSV files with indicies into table field arrays

      instead of individual table fields.

    </change>

  </history>

  <groups>

#include "Isis.h"

#include <vector>

#include <QRegularExpression>

#include <QString>

#include "Cube.h"

  CSVReader::CSVAxis header = reader.getHeader();

  // Construct an empty table with the CSV header as field names

  // Collect identical field names together, including those with (###) at the end, so a single

  // table field with multiple values can be created.

  TableRecord tableRow;

  QRegularExpression rex(R"((?<name>\w+)(\((?<index>[0-9]*)\)|))");

  for (int columnIndex = 0; columnIndex < numColumns; columnIndex++) {

    TableField columnField(QString(header[columnIndex]), TableField::Double);

    QRegularExpressionMatch match = rex.match(header[columnIndex]);

    if (match.hasMatch()) {

      QString name = match.captured("name");

      QString index = match.captured("index");

      // If the next column header is different, create a field for this one

      QRegularExpressionMatch nextMatch = (columnIndex<numColumns-1)?rex.match(header[columnIndex+1]):QRegularExpressionMatch();

      if ((columnIndex == numColumns-1) || (nextMatch.hasMatch() && (name != nextMatch.captured("name")))) {

        TableField columnField(name, TableField::Double, (index.length()>0)?(index.toInt()+1):1);

        tableRow += columnField;

      }

    }

  }

  QString tableName = ui.GetString("tablename");

  Table table(tableName, tableRow);

  // Fill the table

  // Fill the table from the csv

  for (int rowIndex = 0; rowIndex < numRows; rowIndex++) {

    CSVReader::CSVAxis csvRow = reader.getRow(rowIndex);

    for (int columnIndex = 0; columnIndex < numColumns; columnIndex++) {

      tableRow[columnIndex] = toDouble(csvRow[columnIndex]);

    for (int columnIndex = 0, fieldIndex = 0; columnIndex < numColumns; ) {

      if (tableRow[fieldIndex].size() == 1) {

        tableRow[fieldIndex] = toDouble(csvRow[columnIndex++]);

      }

      else {

        std::vector<double> dblVector;

        for (int arrayLen = 0; arrayLen < tableRow[fieldIndex].size(); arrayLen++) {

          dblVector.push_back(toDouble(csvRow[columnIndex++]));

        }

        tableRow[fieldIndex] = dblVector;

      }

      fieldIndex++;

    }

    table += tableRow;

  }

  // If a set of label keywords was passed add them to the table

  // If a set of additional label keywords was given then add them to the table's pvl description

  if (ui.WasEntered("label")) {

    QString labelPvlFilename = ui.GetFileName("label");

    Pvl labelPvl;

  }

  outCube.close();

}

	tabledump from=$(OUTPUT)/isisTruth.cub \

	to=$(OUTPUT)/output.csv \

	NAME="TestTable" > /dev/null;

	$(APPNAME) csv=$(INPUT)/test_arrays.csv \

	tablename="TestTableArrays" \

	to=$(OUTPUT)/isisTruth.cub > /dev/null;

	tabledump from=$(OUTPUT)/isisTruth.cub \

	to=$(OUTPUT)/output_arrays.csv \

	NAME="TestTableArrays" > /dev/null;

	rm $(OUTPUT)/isisTruth.cub;