class RDoc::Markup::ToHtml
Outputs RDoc markup as HTML.
Public Class Methods
Creates a new formatter that will output HTML
# File lib/rdoc/markup/to_html.rb, line 45 def initialize options, markup = nil super @code_object = nil @from_path = '' @in_list_entry = nil @list = nil @th = nil @hard_break = "<br>\n" # external links @markup.add_regexp_handling(/(?:link:|https?:|mailto:|ftp:|irc:|www\.)\S+\w/, :HYPERLINK) add_regexp_handling_RDOCLINK add_regexp_handling_TIDYLINK init_tags end
Regexp Handling
↑ topPublic Instance Methods
target
is a
# File lib/rdoc/markup/to_html.rb, line 96 def handle_regexp_HARD_BREAK target '<br>' end
target
is a potential link. The following schemes are
handled:
mailto:
-
Inserted as-is.
http:
-
Links are checked to see if they reference an image. If so, that image gets inserted using an
<img>
tag. Otherwise a conventional<a href>
is used. link:
-
Reference to a local file relative to the output directory.
# File lib/rdoc/markup/to_html.rb, line 112 def handle_regexp_HYPERLINK(target) url = target.text gen_url url, url end
target
is an rdoc-schemed link that will be converted into a
hyperlink.
For the rdoc-ref
scheme the named reference will be returned
without creating a link.
For the rdoc-label
scheme the footnote and label prefixes are
stripped when creating a link. All other contents will be linked verbatim.
# File lib/rdoc/markup/to_html.rb, line 127 def handle_regexp_RDOCLINK target handle_RDOCLINK target.text end
This target
is a link where the label is different from the
URL label[url]
or {long label}[url]
# File lib/rdoc/markup/to_html.rb, line 135 def handle_regexp_TIDYLINK(target) text = target.text return text unless text =~ /^\{(.*)\}\[(.*?)\]$/ or text =~ /^(\S+)\[(.*?)\]$/ label = $1 url = $2 label = handle_RDOCLINK label if /^rdoc-image:/ =~ label gen_url url, label end
Utilities
↑ topConstants
- LIST_TYPE_TO_HTML
Maps RDoc::Markup::Parser::LIST_TOKENS types to HTML tags
Attributes
The RDoc::CodeObject HTML is being generated for. This is used to generate namespaced URI fragments
Path to this document for relative links
Public Instance Methods
CGI-escapes text
# File lib/rdoc/markup/to_html.rb, line 309 def convert_string(text) CGI.escapeHTML text end
Generate a link to url
with content text
.
Handles the special cases for img: and link: described under #handle_regexp_HYPERLINK
# File lib/rdoc/markup/to_html.rb, line 317 def gen_url url, text scheme, url, id = parse_url url if %w[http https link].include?(scheme) and url =~ /\.(gif|png|jpg|jpeg|bmp)$/ then "<img src=\"#{url}\" />" else text = text.sub %r%^#{scheme}:/*%i, '' text = text.sub %r%^[*\^](\d+)$%, '\1' link = "<a#{id} href=\"#{url}\">#{text}</a>" link = "<sup>#{link}</sup>" if /"foot/ =~ id link end end
Determines the HTML list element for list_type
and
open_tag
# File lib/rdoc/markup/to_html.rb, line 338 def html_list_name(list_type, open_tag) tags = LIST_TYPE_TO_HTML[list_type] raise RDoc::Error, "Invalid list type: #{list_type.inspect}" unless tags tags[open_tag ? 0 : 1] end
Returns the HTML end-tag for list_type
# File lib/rdoc/markup/to_html.rb, line 373 def list_end_for(list_type) case list_type when :BULLET, :LALPHA, :NUMBER, :UALPHA then "</li>" when :LABEL, :NOTE then "</dd>" else raise RDoc::Error, "Invalid list type: #{list_type.inspect}" end end
Returns the HTML tag for list_type
, possible using a label
from list_item
# File lib/rdoc/markup/to_html.rb, line 357 def list_item_start(list_item, list_type) case list_type when :BULLET, :LALPHA, :NUMBER, :UALPHA then "<li>" when :LABEL, :NOTE then Array(list_item.label).map do |label| "<dt>#{to_html label}\n" end.join << "<dd>" else raise RDoc::Error, "Invalid list type: #{list_type.inspect}" end end
Returns true if text is valid ruby syntax
# File lib/rdoc/markup/to_html.rb, line 387 def parseable? text verbose, $VERBOSE = $VERBOSE, nil eval("BEGIN {return true}\n#{text}") rescue SyntaxError false ensure $VERBOSE = verbose end
Converts item
to HTML using RDoc::Text#to_html
# File lib/rdoc/markup/to_html.rb, line 399 def to_html item super convert_flow @am.flow item end
Visitor
↑ topPublic Instance Methods
Adds blank_line
to the output
# File lib/rdoc/markup/to_html.rb, line 271 def accept_blank_line(blank_line) # @res << annotate("<p />") << "\n" end
Adds block_quote
to the output
# File lib/rdoc/markup/to_html.rb, line 172 def accept_block_quote block_quote @res << "\n<blockquote>" block_quote.parts.each do |part| part.accept self end @res << "</blockquote>\n" end
Adds heading
to the output. The headings greater than 6 are
trimmed to level 6.
# File lib/rdoc/markup/to_html.rb, line 279 def accept_heading heading level = [6, heading.level].min label = heading.label @code_object @res << if @options.output_decoration "\n<h#{level} id=\"#{label}\">" else "\n<h#{level}>" end @res << to_html(heading.text) unless @options.pipe then @res << "<span><a href=\"##{label}\">¶</a>" @res << " <a href=\"#top\">↑</a></span>" end @res << "</h#{level}>\n" end
Finishes consumption of list
# File lib/rdoc/markup/to_html.rb, line 242 def accept_list_end(list) @list.pop if tag = @in_list_entry.pop @res << tag end @res << html_list_name(list.type, false) << "\n" end
Finishes consumption of list_item
# File lib/rdoc/markup/to_html.rb, line 264 def accept_list_item_end(list_item) @in_list_entry[-1] = list_end_for(@list.last) end
Prepares the visitor for consuming list_item
# File lib/rdoc/markup/to_html.rb, line 253 def accept_list_item_start(list_item) if tag = @in_list_entry.last @res << tag end @res << list_item_start(list_item, @list.last) end
Prepares the visitor for consuming list
# File lib/rdoc/markup/to_html.rb, line 233 def accept_list_start(list) @list << list.type @res << html_list_name(list.type, true) @in_list_entry.push false end
Adds paragraph
to the output
# File lib/rdoc/markup/to_html.rb, line 185 def accept_paragraph paragraph @res << "\n<p>" text = paragraph.text @hard_break text = text.gsub(/\r?\n/, ' ') @res << to_html(text) @res << "</p>\n" end
Adds raw
to the output
# File lib/rdoc/markup/to_html.rb, line 300 def accept_raw raw @res << raw.parts.join("\n") end
Adds rule
to the output
# File lib/rdoc/markup/to_html.rb, line 226 def accept_rule rule @res << "<hr>\n" end
Adds verbatim
to the output
# File lib/rdoc/markup/to_html.rb, line 196 def accept_verbatim verbatim text = verbatim.text.rstrip klass = nil content = if verbatim.ruby? or parseable? text then begin tokens = RDoc::Parser::RipperStateLex.parse text klass = ' class="ruby"' result = RDoc::TokenStream.to_html tokens result = result + "\n" unless "\n" == result[-1] result rescue CGI.escapeHTML text end else CGI.escapeHTML text end if @options.pipe then @res << "\n<pre><code>#{CGI.escapeHTML text}\n</code></pre>\n" else @res << "\n<pre#{klass}>#{content}</pre>\n" end end
Returns the generated output
# File lib/rdoc/markup/to_html.rb, line 165 def end_accepting @res.join end
Prepares the visitor for HTML generation
# File lib/rdoc/markup/to_html.rb, line 156 def start_accepting @res = [] @in_list_entry = [] @list = [] end