81 lines
1.5 KiB
Ruby
81 lines
1.5 KiB
Ruby
# A very simple formatter for imported emails
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class EmailCook
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def self.url_regexp
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/((?:https?:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.])(?:[^\s()<>]+|\([^\s()<>]+\))+(?:\([^\s()<>]+\)|[^`!()\[\]{};:'".,<>?«»“”‘’\s]))/
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end
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def initialize(raw)
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@raw = raw
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end
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def add_quote(result, buffer)
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if buffer.present?
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return if buffer =~ /\A(<br>)+\z$/
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result << "<blockquote>#{buffer}</blockquote>"
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end
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end
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def link_string!(str)
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str.scan(EmailCook.url_regexp).each do |m|
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url = m[0]
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if str.strip == url
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# this could be oneboxed
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val = %|<a href="#{url}" class="onebox" target="_blank">#{url}</a>|
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else
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val = %|<a href="#{url}">#{url}</a>|
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end
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str.gsub!(url, val)
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end
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end
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def cook
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result = ""
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in_text = false
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in_quote = false
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quote_buffer = ""
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@raw.each_line do |l|
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if l =~ /^\s*>/
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in_quote = true
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link_string!(l)
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quote_buffer << l.sub(/^[\s>]*/, '') << "<br>"
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elsif in_quote
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add_quote(result, quote_buffer)
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quote_buffer = ""
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in_quote = false
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else
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sz = l.size
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link_string!(l)
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result << l
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if sz < 60
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result << "<br>"
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if in_text
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result << "<br>"
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end
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in_text = false
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else
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in_text = true
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end
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end
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end
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if in_quote && quote_buffer.present?
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add_quote(result, quote_buffer)
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end
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result.gsub!(/(<br>\n*){3,10}/, '<br><br>')
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result
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end
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end
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