Building and Testing with Gradle by McCullough Matthew Berglund Tim
Author:McCullough, Matthew, Berglund, Tim [Tim Berglund and Matthew McCullough]
Language: eng
Format: epub
Tags: COMPUTERS / Programming Languages / Java
ISBN: 9781449313098
Publisher: O'Reilly Media
Published: 2011-07-05T16:00:00+00:00
The power of Groovy’s operators can also be leveraged inside AntBuilder calls, such as using the regular expression matcher inside an evaluation of all System properties in Example 3-19. The spread *, elvis ?:, and other Groovy operators can all be applied directly or to subcomponents of the ant instance for a high code-to-effect ratio. With almost no ceremony, the ==~ “firecracker” operator is used in Example 3-19 to query for regular expression matches of a string, charsToFind.
Example 3-19. Use the Groovy regular expression operator in an AntBuilder output
task echoSystemPropertiesWithRegEx() { description = "Uses Groovy's regex matching to find a match in System properties" def charsToFind = 'sun' println "SYSTEM PROPERTIES" System.properties.each{ ant.echo("Does '${it}' contain '${charsToFind}': " + (it ==~ ".*${charsToFind}.*")) } }
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