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module WikiHelper
# Produces a pure text breadcrumb for a given page.
#
# page_slug - The slug of a WikiPage object.
#
# Returns a String composed of the capitalized name of each directory and the
# capitalized name of the page itself.
def breadcrumb(page_slug)
page_slug.split('/').
map { |dir_or_page| WikiPage.unhyphenize(dir_or_page).capitalize }.
join(' / ')
end
end
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