Regular Expressions 101

Group 1(<dependency>\s+<groupId>)

<dependency>the literal text <dependency> (case sensitive)

\s+any whitespace character, repeated at least once

<groupId>the literal text <groupId> (case sensitive)

Group 2(.+)

.+any character (except for line terminators), repeated at least once

Group 3(</groupId>\s+<artifactId>)

</groupId>the literal text </groupId> (case sensitive)

\s+any whitespace character, repeated at least once

<artifactId>the literal text <artifactId> (case sensitive)

Group 4(.+)

.+any character (except for line terminators), repeated at least once

Group 5(</artifactId>\s+<version>)

</artifactId>the literal text </artifactId> (case sensitive)

\s+any whitespace character, repeated at least once

<version>the literal text <version> (case sensitive)

Group 6([^\$]+?)

Negated Character Class[^\$]+?

+?matches at least one character outside the set below:

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group 7(</version>[\s\S]*?\s+</dependency>)

</version>the literal text </version> (case sensitive)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\s+any whitespace character, repeated at least once

</dependency>the literal text </dependency> (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

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Search reference

Regular Expression

(<dependency>\s+<groupId>)(.+)(</groupId>\s+<artifactId>)(.+)(</artifactId>\s+<version>)([^\$]+?)(</version>[\s\S]*?\s+</dependency>)

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