[LUCY-134] Eliminate Parse::RecDescent dependency

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.3.0 (incubating)
• Component/s: Clownfish, Documentation
• Assignee: Marvin Humphrey
• Reporter: Marvin Humphrey
• Created: 14/Mar/11 03:47
• Updated: 27/Oct/11 19:26
• Resolved: 27/Oct/11 19:26

Description

Lucy currently has a build-time dependency on the CPAN module
Parse::RecDescent, via the class Clownfish::Parser within the Clownfish
compiler. Parse::RecDescent is Perl-licensed, so we must work to eliminate
it.

Thanks to the ruling in LEGAL-86, it is not necessary to purge
Parse::RecDescent from Clownfish prior to 0.1.0-incubating, but the sooner the
better.

Parse::RecDescent is also used by the sample class FlatQueryParser, which is
documented in Lucy::Docs::Cookbook::CustomQueryParser. According to LEGAL-86,
this usage presents no legal concern, but we plan to revise the cookbook entry
and eliminate mention of Parse::RecDescent nonetheless.

Dev list threads: http://s.apache.org/ub http://s.apache.org/ma