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module ActionView::Helpers::TextHelper
# Turns all email addresses into clickable links. If a block is given,
# each email is yielded and the result is used as the link text.
# Example:
# auto_link_email_addresses(post.body) do |text|
# truncate(text, 15)
# end
def auto_link_email_addresses(content)
re = %r{
(<\w+[^\<\>]*?\>|[\s[:punct:]]|mailto:|^) # leading text
(
[\w\.\!\#\$\%\-\+\.\/]+ # username
\@
[-\w]+ # subdomain or domain
(?:\.[-\w]+)+ # remaining subdomains or domain
)
([[:punct:]]|\s|\<|$) # trailing text
}x
content.gsub(re) do |all|
# this seems incredibly stupid, but $1, $2, $3 weren't being set
re.match(all)
a, b, c = $1, $2, $3
if a =~ /\<a\s|[='"]$/i
all
elsif a =~ /mailto:/i
url_src = b
url = ''
url_src.length.times do |i|
url << (i % 2 == 0 ? sprintf("%%%x", url_src[i].ord) : url_src[i])
end
"#{a}#{url}#{c}"
else
url_src = b
text_src = b
text_src = yield(text_src) if block_given?
unless url_src && text_src
all
else
url = ''
text = ''
url_src.length.times do |i|
url << (i % 2 == 0 ? sprintf("%%%x", url_src[i].ord) : url_src[i])
end
text_src.length.times do |i|
text << (i % 4 == 0 ? '<span>' << text_src[i] << '</span>' : text_src[i])
end
"#{a}<a href=\"mailto:#{url}\">#{text}</a>#{c}"
end
end
end.html_safe
end
end
Version data entries
19 entries across 19 versions & 1 rubygems