134 lines
4.1 KiB
Ruby
134 lines
4.1 KiB
Ruby
module CodeRay
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module Encoders
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class HTML
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module Output
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def numerize *args
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clone.numerize!(*args)
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end
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=begin NUMERIZABLE_WRAPPINGS = {
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:table => [:div, :page, nil],
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:inline => :all,
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:list => [:div, :page, nil]
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}
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NUMERIZABLE_WRAPPINGS.default = :all
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=end
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def numerize! mode = :table, options = {}
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return self unless mode
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options = DEFAULT_OPTIONS.merge options
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start = options[:line_number_start]
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unless start.is_a? Integer
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raise ArgumentError, "Invalid value %p for :line_number_start; Integer expected." % start
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end
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#allowed_wrappings = NUMERIZABLE_WRAPPINGS[mode]
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#unless allowed_wrappings == :all or allowed_wrappings.include? options[:wrap]
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# raise ArgumentError, "Can't numerize, :wrap must be in %p, but is %p" % [NUMERIZABLE_WRAPPINGS, options[:wrap]]
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#end
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bold_every = options[:bold_every]
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highlight_lines = options[:highlight_lines]
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bolding =
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if bold_every == false && highlight_lines == nil
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proc { |line| line.to_s }
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elsif highlight_lines.is_a? Enumerable
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highlight_lines = highlight_lines.to_set
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proc do |line|
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if highlight_lines.include? line
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"<strong class=\"highlighted\">#{line}</strong>" # highlighted line numbers in bold
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else
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line.to_s
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end
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end
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elsif bold_every.is_a? Integer
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raise ArgumentError, ":bolding can't be 0." if bold_every == 0
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proc do |line|
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if line % bold_every == 0
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"<strong>#{line}</strong>" # every bold_every-th number in bold
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else
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line.to_s
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end
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end
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else
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raise ArgumentError, 'Invalid value %p for :bolding; false or Integer expected.' % bold_every
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end
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case mode
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when :inline
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max_width = (start + line_count).to_s.size
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line_number = start
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gsub!(/^/) do
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line_number_text = bolding.call line_number
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indent = ' ' * (max_width - line_number.to_s.size) # TODO: Optimize (10^x)
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res = "<span class=\"no\">#{indent}#{line_number_text}</span> "
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line_number += 1
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res
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end
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when :table
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# This is really ugly.
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# Because even monospace fonts seem to have different heights when bold,
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# I make the newline bold, both in the code and the line numbers.
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# FIXME Still not working perfect for Mr. Internet Exploder
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line_numbers = (start ... start + line_count).to_a.map(&bolding).join("\n")
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line_numbers << "\n" # also for Mr. MS Internet Exploder :-/
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line_numbers.gsub!(/\n/) { "<tt>\n</tt>" }
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line_numbers_table_tpl = TABLE.apply('LINE_NUMBERS', line_numbers)
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gsub!("</div>\n", '</div>')
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gsub!("\n", "<tt>\n</tt>")
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wrap_in! line_numbers_table_tpl
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@wrapped_in = :div
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when :list
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opened_tags = []
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gsub!(/^.*$\n?/) do |line|
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line.chomp!
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open = opened_tags.join
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line.scan(%r!<(/)?span[^>]*>?!) do |close,|
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if close
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opened_tags.pop
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else
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opened_tags << $&
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end
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end
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close = '</span>' * opened_tags.size
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"<li>#{open}#{line}#{close}</li>\n"
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end
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chomp!("\n")
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wrap_in! LIST
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@wrapped_in = :div
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else
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raise ArgumentError, 'Unknown value %p for mode: expected one of %p' %
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[mode, [:table, :list, :inline]]
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end
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self
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end
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def line_count
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line_count = count("\n")
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position_of_last_newline = rindex(?\n)
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if position_of_last_newline
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after_last_newline = self[position_of_last_newline + 1 .. -1]
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ends_with_newline = after_last_newline[/\A(?:<\/span>)*\z/]
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line_count += 1 if not ends_with_newline
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end
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line_count
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end
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end
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end
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end
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end
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