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Combine link mention and link comment helper

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This commit is contained in:
Rei
2014-03-18 14:11:47 +08:00
parent fa9e61a66f
commit a51c845bd6
2 changed files with 26 additions and 32 deletions
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38
app/helpers/markdown_helper.rb
View File

@@ -17,22 +17,28 @@ module MarkdownHelper
end
end
end
end
class MentionVisitor < TextReplaceVisitor
def process(text)
text.gsub(/@([a-z0-9][a-z0-9-]*)/) { |match|
# link mention
# @username => <a href="/~username">@username</a>
text.gsub!(/@([a-z0-9][a-z0-9-]*)/) { |match|
%Q|<a href="/~#{$1}">#{match}</a>|
}
# link comments
# #123 => <a href="?comment_id=123#comment-123">#123</a>
text.gsub!(/#(\d+)/) { |match|
%Q|<a href="?comment_id=#{$1}#comment-#{$1}">#{match}</a>|
}
text
end
end
class CommentVisitor < TextReplaceVisitor
def process(text)
text.gsub(/#(\d+)/) { |match|
%Q|<a href="?comment_id=#{$1}#comment-#{$1}">#{match}</a>|
}
end
def markdown_text_replace(html)
doc = Nokogiri::HTML.fragment(html)
doc.accept(TextReplaceVisitor.new)
doc.to_html
end
def markdown(text)
@@ -49,23 +55,11 @@ module MarkdownHelper
end
def markdown_format(text)
sanitize(link_comments(link_mentions(markdown(text))),
sanitize(markdown_text_replace(markdown(text)),
tags: %w(p br img h1 h2 h3 h4 blockquote pre code strong em a ul ol li span),
attributes: %w(href src class title alt target rel))
end
def link_mentions(text)
doc = Nokogiri::HTML.fragment(text)
doc.accept(MentionVisitor.new)
doc.to_html
end
def link_comments(text)
doc = Nokogiri::HTML.fragment(text)
doc.accept(CommentVisitor.new)
doc.to_html
end
def markdown_area(form, name, options = {})
render partial: 'markdown/area', locals: options.merge(form: form, name: name)
end

20
test/helpers/markdown_helper_test.rb
View File

@@ -1,17 +1,17 @@
require 'test_helper'
class MarkdownHelperTest < ActionView::TestCase
test "link mentions" do
assert_equal %q|<p><a href="/~username">@username</a></p>|, link_mentions('<p>@username</p>')
assert_equal %q|<a href="http://example.org/">@username</a>|, link_mentions(%q|<a href="http://example.org/">@username</a>|)
assert_equal %q|<pre>@username</pre>|, link_mentions(%q|<pre>@username</pre>|)
assert_equal %q|<code>@username</code>|, link_mentions(%q|<code>@username</code>|)
test "should link mentions" do
assert_equal %q|<p><a href="/~username">@username</a></p>|, markdown_text_replace('<p>@username</p>')
assert_equal %q|<a href="http://example.org/">@username</a>|, markdown_text_replace(%q|<a href="http://example.org/">@username</a>|)
assert_equal %q|<pre>@username</pre>|, markdown_text_replace(%q|<pre>@username</pre>|)
assert_equal %q|<code>@username</code>|, markdown_text_replace(%q|<code>@username</code>|)
end
test "should link floor" do
assert_equal %Q|<p><a href="?comment_id=1#comment-1">#1</a></p>|, link_comments('<p>#1</p>')
assert_equal %q|<a href="http://example.org/">#1</a>|, link_mentions(%q|<a href="http://example.org/">#1</a>|)
assert_equal %q|<pre>#1</pre>|, link_mentions(%q|<pre>#1</pre>|)
assert_equal %q|<code>#1</code>|, link_mentions(%q|<code>#1</code>|)
test "should link comments" do
assert_equal %Q|<p><a href="?comment_id=1#comment-1">#1</a></p>|, markdown_text_replace('<p>#1</p>')
assert_equal %q|<a href="http://example.org/">#1</a>|, markdown_text_replace(%q|<a href="http://example.org/">#1</a>|)
assert_equal %q|<pre>#1</pre>|, markdown_text_replace(%q|<pre>#1</pre>|)
assert_equal %q|<code>#1</code>|, markdown_text_replace(%q|<code>#1</code>|)
end
end