If this option is not enabled, whitespace characters appearing in the regular expression are matched as-is. In this mode, you must use the \s token to match whitespace. Select to ignore whitespace and embedded comments starting with # through the end of the line. Permit whitespace and comments in pattern Unicode-aware case-insensitive matching can be enabled by specifying the 'Unicode-aware case.' flag in conjunction with this flag. Only characters in the US-ASCII charset are matched. This action may improve performance, but your data can only contain US ASCII characters. Select to ignore different Unicode character encodings. The Content tab contains the following options: Option Select to expand variable references to their values before evaluating the regular expression pattern. Click Test regEx to open the Regular Expression Evaluation window. This option is available when you select the Create fields for capture groups option. If this option is clear, new fields are added to the outgoing PDI stream for each capturing group field. Select to replace fields from the incoming PDI stream with fields created for the capture group field names, if the fields have the same name. You can change the data type using the columns in the table. The order of the fields in the table must be the same as the order of the capturing groups in the regular expression. Each capture group must have a field defined in the Capture Group fields table. When this option is selected, substrings in the captured groups are extracted and stored in new output fields, that you specify in the Capture Group fields table. Select to create new fields based on capture groups, in the regular expression. This field is added to the outgoing PDI stream and has a value of Y to indicate the value of the input field matched the regular expression or N to indicate it did not match. Specify the name of the field from the incoming PDI stream to be matched against the regular expression. The Settings tab contains the following options: Option