Transform form
Completing the Compile tab

Field

Description

Only a newline character (line feed) is treated as a line termination. Sets the constant PATTERN.UNIX_LINES.

A period character usually matches any character including a line terminator. Select to include any line terminator character in the set of characters that match a period.

Sets the constant PATTERN.DOTALL.

By default, the expressions ^ and $ ignore line terminators, and only match the beginning and end of the entire input sequence. Select to cause ^ to match the beginning of input, and also after any line terminator except at the end. Select to cause $ to match immediately before a line terminator or at the end of the input sequence.

Sets the constant PATTERN.MULTILINE.

Select to allow white space and comments (starting with # and ending at the end of a line) to appear and be ignored within a pattern match.

Sets the constant PATTERN.COMMENTS.

Select to enable case-insensitive matching. This assumes that only characters in the US-ASCII character set are being matched, unless the next checkbox is also selected.

Sets the constant PATTERN.CASE_INSENSITIVE.

Select to enable UNICODE-aware case folding.

Sets the constant PATTERN.UNICODE_CASE.

Select to enable canonical equivalence; two characters are considered to match only if their full canonical decompositions match.

Sets the constant PATTERN.CANON_EQ.