July 2017
Intermediate to advanced
158 pages
3h 41m
English
Content preview from Java 9 Regular Expressions
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Positive lookbehind
A positive lookbehind assertion asserts true if the pattern inside the lookbehind is matched.
Here is its syntax:
(?<=...)
For example, (?<=##)\d+ asserts that there must be a ## string just before matching one or more digits.
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