Format options documentation #265

Author: TobiasNx

README.md

@@ -177,7 +177,7 @@ nothing()
 
 ##### `put_filemap`
 
-Defines an external map for lookup from a file. Multi-column mapss are supported.
+Defines an external map for lookup from a file. Maps with more than 2 columns are supported but are reduced to a defined key and a value column.
 
 ```perl
 put_filemap("<sourceFile>", "<mapName>", sep_char: "\t")
@@ -190,15 +190,15 @@ The separator (`sep_char`) will vary depending on the source file, e.g.:
 | CSV  | `,` or `;` |
 | TSV  | `\t`       |
 
-Additional options:
+Options:
 
-- `key_column` defines the column to be used for keys. Uses zero index. Default value: `0`.
-- `value_column` defines the column to be used for values. Uses zero index. Default value: `1`.
-- `expected_columns` sets number of expected columns; lines with different number of columns are ignored. Set to `-1` to disable the check and allow arbitrary number of columns. Default value: `2`.
-- `allow_empty_values` sets whether to allow empty values in the filemap or to ignore these entries. Default value: `false`.
-- `compression` sets the compression of the file.
-- `decompress_concatenated` flags whether to use decompress concatenated file compression.
-- `encoding` sets the encoding used to open the resource.
+- `allow_empty_values`: Sets whether to allow empty values in the filemap or to ignore these entries. (Default: `false`)
+- `compression`: Sets the compression of the file.
+- `decompress_concatenated`: Flags whether to use decompress concatenated file compression.
+- `encoding`: Sets the encoding used to open the resource.
+- `expected_columns`: Sets number of expected columns; lines with different number of columns are ignored. Set to `-1` to disable the check and allow arbitrary number of columns. (Default: `2`)
+- `key_column`: Defines the column to be used for keys. Uses zero index. (Default: `0`)
+- `value_column`: Defines the column to be used for values. Uses zero index. (Default: `1`)
 
 ##### `put_map`