Module | CodeRay::Encoders::HTML::Output |
In: |
lib/coderay/encoders/html/numerization.rb
lib/coderay/encoders/html/output.rb |
SPAN | = | `<span class="CodeRay"><%CONTENT%></span>` | ||
DIV | = | <<-`DIV` <div class="CodeRay"> <div class="code"><pre><%CONTENT%></pre></div> </div> DIV | ||
TABLE | = | <<-`TABLE` <table class="CodeRay"><tr> <td class="line_numbers" title="click to toggle" onclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre><%LINE_NUMBERS%></pre></td> <td class="code"><pre ondblclick="with (this.style) { overflow = (overflow == 'auto' || overflow == '') ? 'visible' : 'auto' }"><%CONTENT%></pre></td> </tr></table> TABLE | ||
LIST | = | <<-`LIST` <ol class="CodeRay"> <%CONTENT%> </ol> LIST | title="double click to expand" | |
PAGE | = | <<-`PAGE` <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="de"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title></title> <style type="text/css"> <%CSS%> </style> </head> <body style="background-color: white;"> <%CONTENT%> </body> </html> PAGE |
css | [RW] | |
wrapped_in | [W] |
Raises an exception if an object that doesn‘t respond to to_str is extended by Output, to prevent users from misuse. Use Module#remove_method to disable.
# File lib/coderay/encoders/html/output.rb, line 37 37: def extended o 38: warn "The Output module is intended to extend instances of String, not #{o.class}." unless o.respond_to? :to_str 39: end
# File lib/coderay/encoders/html/output.rb, line 41 41: def make_stylesheet css, in_tag = false 42: sheet = css.stylesheet 43: sheet = "<style type=\"text/css\">\n\#{sheet}\n</style>\n" if in_tag 44: sheet 45: end
This makes Output look like a class.
Example:
a = Output.new '<span class="co">Code</span>' a.wrap! :page
# File lib/coderay/encoders/html/output.rb, line 28 28: def new string, css = CSS.new, element = nil 29: output = string.clone.extend self 30: output.wrapped_in = element 31: output.css = css 32: output 33: end
# File lib/coderay/encoders/html/output.rb, line 52 52: def page_template_for_css css 53: sheet = make_stylesheet css 54: PAGE.apply 'CSS', sheet 55: end
Define a new wrapper. This is meta programming.
# File lib/coderay/encoders/html/output.rb, line 58 58: def wrapper *wrappers 59: wrappers.each do |wrapper| 60: define_method wrapper do |*args| 61: wrap wrapper, *args 62: end 63: define_method "#{wrapper}!".to_sym do |*args| 64: wrap! wrapper, *args 65: end 66: end 67: end
# File lib/coderay/encoders/html/output.rb, line 91 91: def apply_title! title 92: self.sub!(/(<title>)(<\/title>)/) { $1 + title + $2 } 93: self 94: end
# File lib/coderay/encoders/html/numerization.rb, line 117 117: def line_count 118: line_count = count("\n") 119: position_of_last_newline = rindex(?\n) 120: if position_of_last_newline 121: after_last_newline = self[position_of_last_newline + 1 .. -1] 122: ends_with_newline = after_last_newline[/\A(?:<\/span>)*\z/] 123: line_count += 1 if not ends_with_newline 124: end 125: line_count 126: end
# File lib/coderay/encoders/html/numerization.rb, line 8 8: def numerize *args 9: clone.numerize!(*args) 10: end
# File lib/coderay/encoders/html/numerization.rb, line 19 19: def numerize! mode = :table, options = {} 20: return self unless mode 21: 22: options = DEFAULT_OPTIONS.merge options 23: 24: start = options[:line_number_start] 25: unless start.is_a? Integer 26: raise ArgumentError, "Invalid value %p for :line_number_start; Integer expected." % start 27: end 28: 29: #allowed_wrappings = NUMERIZABLE_WRAPPINGS[mode] 30: #unless allowed_wrappings == :all or allowed_wrappings.include? options[:wrap] 31: # raise ArgumentError, "Can't numerize, :wrap must be in %p, but is %p" % [NUMERIZABLE_WRAPPINGS, options[:wrap]] 32: #end 33: 34: bold_every = options[:bold_every] 35: highlight_lines = options[:highlight_lines] 36: bolding = 37: if bold_every == false && highlight_lines == nil 38: proc { |line| line.to_s } 39: elsif highlight_lines.is_a? Enumerable 40: highlight_lines = highlight_lines.to_set 41: proc do |line| 42: if highlight_lines.include? line 43: "<strong class=\"highlighted\">#{line}</strong>" # highlighted line numbers in bold 44: else 45: line.to_s 46: end 47: end 48: elsif bold_every.is_a? Integer 49: raise ArgumentError, ":bolding can't be 0." if bold_every == 0 50: proc do |line| 51: if line % bold_every == 0 52: "<strong>#{line}</strong>" # every bold_every-th number in bold 53: else 54: line.to_s 55: end 56: end 57: else 58: raise ArgumentError, 'Invalid value %p for :bolding; false or Integer expected.' % bold_every 59: end 60: 61: case mode 62: when :inline 63: max_width = (start + line_count).to_s.size 64: line_number = start 65: gsub!(/^/) do 66: line_number_text = bolding.call line_number 67: indent = ' ' * (max_width - line_number.to_s.size) # TODO: Optimize (10^x) 68: res = "<span class=\"no\">#{indent}#{line_number_text}</span> " 69: line_number += 1 70: res 71: end 72: 73: when :table 74: # This is really ugly. 75: # Because even monospace fonts seem to have different heights when bold, 76: # I make the newline bold, both in the code and the line numbers. 77: # FIXME Still not working perfect for Mr. Internet Exploder 78: line_numbers = (start ... start + line_count).to_a.map(&bolding).join("\n") 79: line_numbers << "\n" # also for Mr. MS Internet Exploder :-/ 80: line_numbers.gsub!(/\n/) { "<tt>\n</tt>" } 81: 82: line_numbers_table_tpl = TABLE.apply('LINE_NUMBERS', line_numbers) 83: gsub!("</div>\n", '</div>') 84: gsub!("\n", "<tt>\n</tt>") 85: wrap_in! line_numbers_table_tpl 86: @wrapped_in = :div 87: 88: when :list 89: opened_tags = [] 90: gsub!(/^.*$\n?/) do |line| 91: line.chomp! 92: 93: open = opened_tags.join 94: line.scan(%r!<(/)?span[^>]*>?!) do |close,| 95: if close 96: opened_tags.pop 97: else 98: opened_tags << $& 99: end 100: end 101: close = '</span>' * opened_tags.size 102: 103: "<li>#{open}#{line}#{close}</li>\n" 104: end 105: chomp!("\n") 106: wrap_in! LIST 107: @wrapped_in = :div 108: 109: else 110: raise ArgumentError, 'Unknown value %p for mode: expected one of %p' % 111: [mode, [:table, :list, :inline]] 112: end 113: 114: self 115: end
# File lib/coderay/encoders/html/output.rb, line 126 126: def stylesheet in_tag = false 127: Output.make_stylesheet @css, in_tag 128: end
# File lib/coderay/encoders/html/output.rb, line 122 122: def wrap *args 123: clone.wrap!(*args) 124: end
# File lib/coderay/encoders/html/output.rb, line 96 96: def wrap! element, *args 97: return self if not element or element == wrapped_in 98: case element 99: when :div 100: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil 101: wrap_in! DIV 102: when :span 103: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil 104: wrap_in! SPAN 105: when :page 106: wrap! :div if wrapped_in? nil 107: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? :div 108: wrap_in! Output.page_template_for_css(@css) 109: if args.first.is_a?(Hash) && title = args.first[:title] 110: apply_title! title 111: end 112: self 113: when nil 114: return self 115: else 116: raise "Unknown value %p for :wrap" % element 117: end 118: @wrapped_in = element 119: self 120: end
# File lib/coderay/encoders/html/output.rb, line 82 82: def wrap_in template 83: clone.wrap_in! template 84: end
# File lib/coderay/encoders/html/output.rb, line 86 86: def wrap_in! template 87: Template.wrap! self, template, 'CONTENT' 88: self 89: end
# File lib/coderay/encoders/html/output.rb, line 77 77: def wrapped_in 78: @wrapped_in ||= nil 79: end