The following pages and posts are tagged with

TitleTypeExcerpt
How to add a new CPD language Page How to add a new CPD language
Adding PMD support for a new language Page How to add a new language to PMD.
Adding support for metrics to a language Page PMD's Java module has an extensive framework for the calculation of metrics, which allows rule developers to implement and use new code metrics very simply. ...
Index of Apex code metrics Page Index of the code metrics available out of the box to Apex rule developers.
Defining rule properties Page Learn how to define your own properties both for Java and XPath rules.
The rule designer Page Learn about the usage and features of the rule designer.
Index of Java code metrics Page Index of the code metrics available out of the box to Java rule developers.
Using and defining code metrics for custom rules Page Since version 6.0.0, PMD is enhanced with the ability to compute code metrics on Java and Apex source (the so-called Metrics Framework). This framework provi...
Rule guidelines Page Rule Guidelines, or the last touches to a rule
Guidelines for standard rules Page Guidelines for rules that are included in the standard distribution
Testing your rules Page Learn how to use PMD's simple test framework for unit testing rules.
Writing a custom rule Page Learn how to write a custom rule for PMD
Writing a custom rule Page The information on this page has been split into several separate pages. Please update your bookmarks: * [Introduction to writing rules](pmd_userdocs_extending_writing_rules_intro.html) * [Your First Rule](pmd_userdocs_extending_your_first_rule.html) introduces the basic development process of a rule with a running example * [Writing XPath Rules](pmd_userdocs_extending_writing_xpath_rules.html) explains a bit more about XPath rules and our...
Introduction to writing PMD rules Page Writing your own PMD rules
Writing XPath rules Page This page describes XPath rule support in more details
Your first rule XPath Page Introduction to rule writing through an example.