c-resources/CPlusPlus20ForProgrammers-m.../examples/libraries/rapidcsv/doc/rapidcsv_Document.md

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class rapidcsv::Document

Class representing a CSV document.


Document (const std::string & pPath = std::string(), const LabelParams & pLabelParams = LabelParams(), const SeparatorParams & pSeparatorParams = SeparatorParams(), const ConverterParams & pConverterParams = ConverterParams(), const LineReaderParams & pLineReaderParams = LineReaderParams())

Constructor.

Parameters

  • pPath specifies the path of an existing CSV-file to populate the Document data with.
  • pLabelParams specifies which row and column should be treated as labels.
  • pSeparatorParams specifies which field and row separators should be used.
  • pConverterParams specifies how invalid numbers (including empty strings) should be handled.
  • pLineReaderParams specifies how special line formats should be treated.

Document (std::istream & pStream, const LabelParams & pLabelParams = LabelParams(), const SeparatorParams & pSeparatorParams = SeparatorParams(), const ConverterParams & pConverterParams = ConverterParams(), const LineReaderParams & pLineReaderParams = LineReaderParams())

Constructor.

Parameters

  • pStream specifies an input stream to read CSV data from.
  • pLabelParams specifies which row and column should be treated as labels.
  • pSeparatorParams specifies which field and row separators should be used.
  • pConverterParams specifies how invalid numbers (including empty strings) should be handled.
  • pLineReaderParams specifies how special line formats should be treated.

void Clear ()

Clears loaded Document data.


template<typename T > T GetCell (const size_t pColumnIdx, const size_t pRowIdx)

Get cell by index.

Parameters

  • pColumnIdx zero-based column index.
  • pRowIdx zero-based row index.

Returns:

  • cell data.

template<typename T > T GetCell (const size_t pColumnIdx, const size_t pRowIdx, ConvFunc< T > pToVal)

Get cell by index.

Parameters

  • pColumnIdx zero-based column index.
  • pRowIdx zero-based row index.
  • pToVal conversion function.

Returns:

  • cell data.

template<typename T > T GetCell (const std::string & pColumnName, const std::string & pRowName)

Get cell by name.

Parameters

  • pColumnName column label name.
  • pRowName row label name.

Returns:

  • cell data.

template<typename T > T GetCell (const std::string & pColumnName, const std::string & pRowName, ConvFunc< T > pToVal)

Get cell by name.

Parameters

  • pColumnName column label name.
  • pRowName row label name.
  • pToVal conversion function.

Returns:

  • cell data.

template<typename T > T GetCell (const std::string & pColumnName, const size_t pRowIdx)

Get cell by column name and row index.

Parameters

  • pColumnName column label name.
  • pRowIdx zero-based row index.

Returns:

  • cell data.

template<typename T > T GetCell (const std::string & pColumnName, const size_t pRowIdx, ConvFunc< T > pToVal)

Get cell by column name and row index.

Parameters

  • pColumnName column label name.
  • pRowIdx zero-based row index.
  • pToVal conversion function.

Returns:

  • cell data.

template<typename T > T GetCell (const size_t pColumnIdx, const std::string & pRowName)

Get cell by column index and row name.

Parameters

  • pColumnIdx zero-based column index.
  • pRowName row label name.

Returns:

  • cell data.

template<typename T > T GetCell (const size_t pColumnIdx, const std::string & pRowName, ConvFunc< T > pToVal)

Get cell by column index and row name.

Parameters

  • pColumnIdx zero-based column index.
  • pRowName row label name.
  • pToVal conversion function.

Returns:

  • cell data.

template<typename T > std::vector<T> GetColumn (const size_t pColumnIdx)

Get column by index.

Parameters

  • pColumnIdx zero-based column index.

Returns:

  • vector of column data.

template<typename T > std::vector<T> GetColumn (const size_t pColumnIdx, ConvFunc< T > pToVal)

Get column by index.

Parameters

  • pColumnIdx zero-based column index.
  • pToVal conversion function.

Returns:

  • vector of column data.

template<typename T > std::vector<T> GetColumn (const std::string & pColumnName)

Get column by name.

Parameters

  • pColumnName column label name.

Returns:

  • vector of column data.

template<typename T > std::vector<T> GetColumn (const std::string & pColumnName, ConvFunc< T > pToVal)

Get column by name.

Parameters

  • pColumnName column label name.
  • pToVal conversion function.

Returns:

  • vector of column data.

size_t GetColumnCount ()

Get number of data columns (excluding label columns).

Returns:

  • column count.

ssize_t GetColumnIdx (const std::string & pColumnName)

Get column index by name.

Parameters

  • pColumnName column label name.

Returns:

  • zero-based column index.

std::string GetColumnName (const ssize_t pColumnIdx)

Get column name.

Parameters

  • pColumnIdx zero-based column index.

Returns:

  • column name.

std::vector<std::string> GetColumnNames ()

Get column names.

Returns:

  • vector of column names.

template<typename T > std::vector<T> GetRow (const size_t pRowIdx)

Get row by index.

Parameters

  • pRowIdx zero-based row index.

Returns:

  • vector of row data.

template<typename T > std::vector<T> GetRow (const size_t pRowIdx, ConvFunc< T > pToVal)

Get row by index.

Parameters

  • pRowIdx zero-based row index.
  • pToVal conversion function.

Returns:

  • vector of row data.

template<typename T > std::vector<T> GetRow (const std::string & pRowName)

Get row by name.

Parameters

  • pRowName row label name.

Returns:

  • vector of row data.

template<typename T > std::vector<T> GetRow (const std::string & pRowName, ConvFunc< T > pToVal)

Get row by name.

Parameters

  • pRowName row label name.
  • pToVal conversion function.

Returns:

  • vector of row data.

size_t GetRowCount ()

Get number of data rows (excluding label rows).

Returns:

  • row count.

ssize_t GetRowIdx (const std::string & pRowName)

Get row index by name.

Parameters

  • pRowName row label name.

Returns:

  • zero-based row index.

std::string GetRowName (const ssize_t pRowIdx)

Get row name.

Parameters

  • pRowIdx zero-based column index.

Returns:

  • row name.

std::vector<std::string> GetRowNames ()

Get row names.

Returns:

  • vector of row names.

template<typename T > void InsertColumn (const size_t pColumnIdx, const std::vector< T > & pColumn = std::vector<T>(), const std::string & pColumnName = std::string())

Insert column at specified index.

Parameters

  • pColumnIdx zero-based column index.
  • pColumn vector of column data (optional argument).
  • pColumnName column label name (optional argument).

template<typename T > void InsertRow (const size_t pRowIdx, const std::vector< T > & pRow = std::vector<T>(), const std::string & pRowName = std::string())

Insert row at specified index.

Parameters

  • pRowIdx zero-based row index.
  • pRow vector of row data (optional argument).
  • pRowName row label name (optional argument).

void Load (const std::string & pPath, const LabelParams & pLabelParams = LabelParams(), const SeparatorParams & pSeparatorParams = SeparatorParams(), const ConverterParams & pConverterParams = ConverterParams(), const LineReaderParams & pLineReaderParams = LineReaderParams())

Read Document data from file.

Parameters

  • pPath specifies the path of an existing CSV-file to populate the Document data with.
  • pLabelParams specifies which row and column should be treated as labels.
  • pSeparatorParams specifies which field and row separators should be used.
  • pConverterParams specifies how invalid numbers (including empty strings) should be handled.
  • pLineReaderParams specifies how special line formats should be treated.

void Load (std::istream & pStream, const LabelParams & pLabelParams = LabelParams(), const SeparatorParams & pSeparatorParams = SeparatorParams(), const ConverterParams & pConverterParams = ConverterParams(), const LineReaderParams & pLineReaderParams = LineReaderParams())

Read Document data from stream.

Parameters

  • pStream specifies an input stream to read CSV data from.
  • pLabelParams specifies which row and column should be treated as labels.
  • pSeparatorParams specifies which field and row separators should be used.
  • pConverterParams specifies how invalid numbers (including empty strings) should be handled.
  • pLineReaderParams specifies how special line formats should be treated.

void RemoveColumn (const size_t pColumnIdx)

Remove column by index.

Parameters

  • pColumnIdx zero-based column index.

void RemoveColumn (const std::string & pColumnName)

Remove column by name.

Parameters

  • pColumnName column label name.

void RemoveRow (const size_t pRowIdx)

Remove row by index.

Parameters

  • pRowIdx zero-based row index.

void RemoveRow (const std::string & pRowName)

Remove row by name.

Parameters

  • pRowName row label name.

void Save (const std::string & pPath = std::string())

Write Document data to file.

Parameters

  • pPath optionally specifies the path where the CSV-file will be created (if not specified, the original path provided when creating or loading the Document data will be used).

void Save (std::ostream & pStream)

Write Document data to stream.

Parameters

  • pStream specifies an output stream to write the data to.

template<typename T > void SetCell (const size_t pColumnIdx, const size_t pRowIdx, const T & pCell)

Set cell by index.

Parameters

  • pRowIdx zero-based row index.
  • pColumnIdx zero-based column index.
  • pCell cell data.

template<typename T > void SetCell (const std::string & pColumnName, const std::string & pRowName, const T & pCell)

Set cell by name.

Parameters

  • pColumnName column label name.
  • pRowName row label name.
  • pCell cell data.

template<typename T > void SetColumn (const size_t pColumnIdx, const std::vector< T > & pColumn)

Set column by index.

Parameters

  • pColumnIdx zero-based column index.
  • pColumn vector of column data.

template<typename T > void SetColumn (const std::string & pColumnName, const std::vector< T > & pColumn)

Set column by name.

Parameters

  • pColumnName column label name.
  • pColumn vector of column data.

void SetColumnName (size_t pColumnIdx, const std::string & pColumnName)

Set column name.

Parameters

  • pColumnIdx zero-based column index.
  • pColumnName column name.

template<typename T > void SetRow (const size_t pRowIdx, const std::vector< T > & pRow)

Set row by index.

Parameters

  • pRowIdx zero-based row index.
  • pRow vector of row data.

template<typename T > void SetRow (const std::string & pRowName, const std::vector< T > & pRow)

Set row by name.

Parameters

  • pRowName row label name.
  • pRow vector of row data.

void SetRowName (size_t pRowIdx, const std::string & pRowName)

Set row name.

Parameters

  • pRowIdx zero-based row index.
  • pRowName row name.

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