eclipse search - regex finding start/end of file with carriage return

I would like to remove any line breaks/carriage returns at the start and end of files but eclipse doesn't seem to recognize $$ or ^^ for end/start of file. Anyone know how to do a regex with eclipse se开发者_运维技巧arch?

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sof ^^ Start of File
eof $$ End of File

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You can use \A to represent the start of the file, and \Z to represent the end of the file.

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It seems by default, the multi-line flag m is enabled in Eclipse, causing ^ and $ to match start- and end-of-lines. You can disable the m flag by adding (?-m) in front of your regex.

I just tested it, and it only removes line breaks at the start or end of the file:

(?-m)(^\s+|\s+$)