read_data_post_process: Helper function for 'read_data()': Do all post processing
In a-maldet/readall: Read FWF, DSV, EXCEL And SAS Files

After reading a data file the following functions will be executed:

retype_cols_(): If the retype_cols argument in the file_definition class object is set to TRUE and the col_types argument is not empty, then the data types of the columns in the read data set will be transformed to the data types given in the col_types argument.
rename_cols_(): If the rename_cols argument in the file_definition class object is set to TRUE and the col_names argument is not empty, then the column names of the read data set will be overwritten by the values in the col_names argument.
apply_to_lower_(): If the to_lower argument in the file_definition class object is set to TRUE, then the column names of the read data set will be transformed to lower case.
compare_col_names_(): If the col_names are given in the [file_definition][new_file_definition())] class object and the header row was used as well (for SAS-files always, or for DSV- and EXCEL-files when header = TRUE), then the column names read by [read_data()] will be compared with the given col_names. In case of differences, a warning will be printed.
[compare_col_types_()]: If the col_types are given in the [file_definition][new_file_definition())] class object, then the data types in the data columns read by [read_data()] will be compared with the given col_types. In case of differences, a warning will be printed.
[add_meta_()]: The meta data of each column (defined in file_definition$file_meta) will be added as an attribute to each data.frame column.
[apply_adapters_()]: Apply all adapters stored in the adapters attribute of the file_definition class object on the data set.
[apply_cols_keep_()]: Only keep the columns defined in the cols_keep attribute of the file_definition class object. If file_definition$cols_keep is not NULL only the columns with the column names given in file_definition$keep_cols are kept.
[add_extra_cols_()]: As defined in the extra_cols_* attributes of the file_definition class object, add additional columns.
- If file_definition$extra_col_name is not NULL, then this value will be used as a column name and the value stored in file_definition$extra_col_val will be used as column value.
- If file_definition$extra_col_file_path is not NULL, then this value will be used as column name and the value file_definition$file_path will be used as column value.

[new_file_definition())]: R:new_file_definition()) [read_data()]: R:read_data() [compare_col_types_()]: R:compare_col_types_() [new_file_definition())]: R:new_file_definition()) [read_data()]: R:read_data() [add_meta_()]: R:add_meta_() [apply_adapters_()]: R:apply_adapters_() [apply_cols_keep_()]: R:apply_cols_keep_() [add_extra_cols_()]: R:add_extra_cols_()

read_data_post_process(data, file_definition, err_h)

rename_cols_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'rename_cols_()'")
)

retype_cols_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'retype_cols_()'")
)

add_extra_cols_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'add_extra_cols_()'")
)

apply_to_lower_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'apply_to_lower_()'")
)

compare_col_names_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'compare_col_names_()'")
)

compare_col_types_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'compare_col_types_()'")
)

apply_cols_keep_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'apply_cols_keep_()'")
)

add_meta_(
  data,
  file_definition,
  err_h = composerr("Error while calling 'add_meta_()'")
)

`data`	The data.frame, which should be modified
`file_definition`	A file_definition class object, holding the file information of the data file.
`err_h`	An error handler.