Pattern.MULTILINE or (?m) tells Java to accept the anchors ^ and $ to match at the start and end of each line (otherwise they only match at the start/end of the entire string).

If the limit is zero then the pattern will be applied as many times as possible, the array can have any length, and trailing empty strings will be discarded. If the limit is negative then the pattern …

Learn how to effectively use regular expressions in Java to match multiline text, including common pitfalls and solutions.

Enables multiline mode in general, the ^ and $ meta characters matches the start and end of the given input with the specified characters irrespective of the number of lines in it.

If MULTILINE mode is activated then ^ matches at the beginning of input and after any line terminator except at the end of input. When in MULTILINE mode $ matches just before a line …

In order to correctly handle these multiline events, you need to configure multiline settings in the filebeat.yml file to specify which lines are part of a single event.

Up until now, we haven't mentioned the issue of multi-line strings. It is perfectly valid and useful to match against a string containing several lines, separated by one of the usual line separators.

However, if you need to match after every line terminator, you will have to set the multiline mode (//m, (?m)) within your pattern. By doing so, the caret ^ will match "the beginning of each line", …

Enables multiline mode. In multiline mode the expressions ^ and $ match just after or just before, respectively, a line terminator or the end of the input sequence.

The following examples show how to use java.util.regex.Pattern #MULTILINE . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source …