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 check box 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.
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