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* 'master' of github.com:tenderlove/rails_autolink: bumping to v1.0.2 Change code structure. Easy testing. Use gsub method on String instead of SafeBuffer. Fix for incompatibility with Rails 3.1.0.rc2. oops!
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| === 1.0.2 / 2011-06-18 | ||
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| * Compatibility with rails 3.1.0.rc4 | ||
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| === 1.0.0 / 2011-05-02 | ||
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| * 1 major enhancement | ||
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@@ -5,4 +5,5 @@ Manifest.txt | |
| README.rdoc | ||
| Rakefile | ||
| lib/rails_autolink.rb | ||
| lib/rails_autolink/helpers.rb | ||
| test/test_rails_autolink.rb | ||
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| module RailsAutolink | ||
| require 'active_support/core_ext/object/blank' | ||
| require 'active_support/core_ext/array/extract_options' | ||
| require 'active_support/core_ext/hash/reverse_merge' | ||
| require 'active_support/core_ext/hash/keys' | ||
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| module ::ActionView | ||
| module Helpers # :nodoc: | ||
| module TextHelper | ||
| # Turns all URLs and e-mail addresses into clickable links. The <tt>:link</tt> option | ||
| # will limit what should be linked. You can add HTML attributes to the links using | ||
| # <tt>:html</tt>. Possible values for <tt>:link</tt> are <tt>:all</tt> (default), | ||
| # <tt>:email_addresses</tt>, and <tt>:urls</tt>. If a block is given, each URL and | ||
| # e-mail address is yielded and the result is used as the link text. By default the | ||
| # text given is sanitized, you can override this behaviour setting the | ||
| # <tt>:sanitize</tt> option to false. | ||
| # | ||
| # ==== Examples | ||
| # auto_link("Go to http://www.rubyonrails.org and say hello to david@loudthinking.com") | ||
| # # => "Go to <a href=\"http://www.rubyonrails.org\">http://www.rubyonrails.org</a> and | ||
| # # say hello to <a href=\"mailto:david@loudthinking.com\">david@loudthinking.com</a>" | ||
| # | ||
| # auto_link("Visit http://www.loudthinking.com/ or e-mail david@loudthinking.com", :link => :urls) | ||
| # # => "Visit <a href=\"http://www.loudthinking.com/\">http://www.loudthinking.com/</a> | ||
| # # or e-mail david@loudthinking.com" | ||
| # | ||
| # auto_link("Visit http://www.loudthinking.com/ or e-mail david@loudthinking.com", :link => :email_addresses) | ||
| # # => "Visit http://www.loudthinking.com/ or e-mail <a href=\"mailto:david@loudthinking.com\">david@loudthinking.com</a>" | ||
| # | ||
| # post_body = "Welcome to my new blog at http://www.myblog.com/. Please e-mail me at me@email.com." | ||
| # auto_link(post_body, :html => { :target => '_blank' }) do |text| | ||
| # truncate(text, :length => 15) | ||
| # end | ||
| # # => "Welcome to my new blog at <a href=\"http://www.myblog.com/\" target=\"_blank\">http://www.m...</a>. | ||
| # Please e-mail me at <a href=\"mailto:me@email.com\">me@email.com</a>." | ||
| # | ||
| # | ||
| # You can still use <tt>auto_link</tt> with the old API that accepts the | ||
| # +link+ as its optional second parameter and the +html_options+ hash | ||
| # as its optional third parameter: | ||
| # post_body = "Welcome to my new blog at http://www.myblog.com/. Please e-mail me at me@email.com." | ||
| # auto_link(post_body, :urls) | ||
| # # => "Welcome to my new blog at <a href=\"http://www.myblog.com/\">http://www.myblog.com</a>. | ||
| # Please e-mail me at me@email.com." | ||
| # | ||
| # auto_link(post_body, :all, :target => "_blank") | ||
| # # => "Welcome to my new blog at <a href=\"http://www.myblog.com/\" target=\"_blank\">http://www.myblog.com</a>. | ||
| # Please e-mail me at <a href=\"mailto:me@email.com\">me@email.com</a>." | ||
| def auto_link(text, *args, &block)#link = :all, html = {}, &block) | ||
| return ''.html_safe if text.blank? | ||
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| options = args.size == 2 ? {} : args.extract_options! # this is necessary because the old auto_link API has a Hash as its last parameter | ||
| unless args.empty? | ||
| options[:link] = args[0] || :all | ||
| options[:html] = args[1] || {} | ||
| end | ||
| options.reverse_merge!(:link => :all, :html => {}) | ||
| sanitize = (options[:sanitize] != false) | ||
| text = conditional_sanitize(text, sanitize).to_str | ||
| case options[:link].to_sym | ||
| when :all then conditional_html_safe(auto_link_email_addresses(auto_link_urls(text, options[:html], options, &block), options[:html], &block), sanitize) | ||
| when :email_addresses then conditional_html_safe(auto_link_email_addresses(text, options[:html], &block), sanitize) | ||
| when :urls then conditional_html_safe(auto_link_urls(text, options[:html], options, &block), sanitize) | ||
| end | ||
| end | ||
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| private | ||
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| AUTO_LINK_RE = %r{ | ||
| (?: ([0-9A-Za-z+.:-]+:)// | www\. ) | ||
| [^\s<]+ | ||
| }x | ||
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| # regexps for determining context, used high-volume | ||
| AUTO_LINK_CRE = [/<[^>]+$/, /^[^>]*>/, /<a\b.*?>/i, /<\/a>/i] | ||
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| AUTO_EMAIL_RE = /[\w.!#\$%+-]+@[\w-]+(?:\.[\w-]+)+/ | ||
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| BRACKETS = { ']' => '[', ')' => '(', '}' => '{' } | ||
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| # Turns all urls into clickable links. If a block is given, each url | ||
| # is yielded and the result is used as the link text. | ||
| def auto_link_urls(text, html_options = {}, options = {}) | ||
| link_attributes = html_options.stringify_keys | ||
| text.gsub(AUTO_LINK_RE) do | ||
| scheme, href = $1, $& | ||
| punctuation = [] | ||
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| if auto_linked?($`, $') | ||
| # do not change string; URL is already linked | ||
| href | ||
| else | ||
| # don't include trailing punctuation character as part of the URL | ||
| while href.sub!(/[^\w\/-]$/, '') | ||
| punctuation.push $& | ||
| if opening = BRACKETS[punctuation.last] and href.scan(opening).size > href.scan(punctuation.last).size | ||
| href << punctuation.pop | ||
| break | ||
| end | ||
| end | ||
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| link_text = block_given?? yield(href) : href | ||
| href = 'http://' + href unless scheme | ||
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| unless options[:sanitize] == false | ||
| link_text = sanitize(link_text) | ||
| href = sanitize(href) | ||
| end | ||
| content_tag(:a, link_text, link_attributes.merge('href' => href), !!options[:sanitize]) + punctuation.reverse.join('') | ||
| end | ||
| end | ||
| end | ||
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| # 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. | ||
| def auto_link_email_addresses(text, html_options = {}, options = {}) | ||
| text.gsub(AUTO_EMAIL_RE) do | ||
| text = $& | ||
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| if auto_linked?($`, $') | ||
| text.html_safe | ||
| else | ||
| display_text = (block_given?) ? yield(text) : text | ||
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| unless options[:sanitize] == false | ||
| text = sanitize(text) | ||
| display_text = sanitize(display_text) unless text == display_text | ||
| end | ||
| mail_to text, display_text, html_options | ||
| end | ||
| end | ||
| end | ||
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| # Detects already linked context or position in the middle of a tag | ||
| def auto_linked?(left, right) | ||
| (left =~ AUTO_LINK_CRE[0] and right =~ AUTO_LINK_CRE[1]) or | ||
| (left.rindex(AUTO_LINK_CRE[2]) and $' !~ AUTO_LINK_CRE[3]) | ||
| end | ||
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| def conditional_sanitize(target, condition) | ||
| condition ? sanitize(target) : target | ||
| end | ||
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| def conditional_html_safe(target, condition) | ||
| condition ? target.html_safe : target | ||
| end | ||
| end | ||
| end | ||
| end | ||
| end |
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