PIG-NPP is a PIG Syntax Highlighter for Notepad++
Erez Segal wrote it while working for PayPal in November 2013. Recently I updated it for Pig 0.14. - Shani Afrimi
Put the file LanguageDefinitionHighLightPig.xml under the folder: %appdata%\Notepad++\ (Note: use the link as is)
Add the file AutoCompletePig.xml under the [Notepad++ installation folder]\plugins\APIs
I wrote autocomplete for Pig 0.14. - Lucia Lifschitz