def search(gem_pattern, platform_only = false)
version_requirement = nil
only_platform = false
case gem_pattern
when Regexp then
version_requirement = platform_only || Gem::Requirement.default
when Gem::Dependency then
only_platform = platform_only
version_requirement = gem_pattern.version_requirements
gem_pattern = if Regexp === gem_pattern.name then
gem_pattern.name
elsif gem_pattern.name.empty? then
//
else
/^#{Regexp.escape gem_pattern.name}$/
end
else
version_requirement = platform_only || Gem::Requirement.default
gem_pattern = /#{gem_pattern}/i
end
unless Gem::Requirement === version_requirement then
version_requirement = Gem::Requirement.create version_requirement
end
specs = @gems.values.select do |spec|
spec.name =~ gem_pattern and
version_requirement.satisfied_by? spec.version
end
if only_platform then
specs = specs.select do |spec|
Gem::Platform.match spec.platform
end
end
specs.sort_by { |s| s.sort_obj }
end