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>CodeRay Output</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/numerization.rb, line 108 108: def line_count 109: line_count = count("\n") 110: position_of_last_newline = rindex(?\n) 111: if position_of_last_newline 112: after_last_newline = self[position_of_last_newline + 1 .. -1] 113: ends_with_newline = after_last_newline[/\A(?:<\/span>)*\z/] 114: line_count += 1 if not ends_with_newline 115: end 116: line_count 117: 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: bolding = 36: if bold_every == false 37: proc { |line| line.to_s } 38: elsif bold_every.is_a? Integer 39: raise ArgumentError, ":bolding can't be 0." if bold_every == 0 40: proc do |line| 41: if line % bold_every == 0 42: "<strong>#{line}</strong>" # every bold_every-th number in bold 43: else 44: line.to_s 45: end 46: end 47: else 48: raise ArgumentError, 'Invalid value %p for :bolding; false or Integer expected.' % bold_every 49: end 50: 51: case mode 52: when :inline 53: max_width = (start + line_count).to_s.size 54: line_number = start 55: gsub!(/^/) do 56: line_number_text = bolding.call line_number 57: indent = ' ' * (max_width - line_number.to_s.size) # TODO: Optimize (10^x) 58: res = "<span class=\"no\">#{indent}#{line_number_text}</span> " 59: line_number += 1 60: res 61: end 62: 63: when :table 64: # This is really ugly. 65: # Because even monospace fonts seem to have different heights when bold, 66: # I make the newline bold, both in the code and the line numbers. 67: # FIXME Still not working perfect for Mr. Internet Exploder 68: # FIXME Firefox struggles with very long codes (> 200 lines) 69: line_numbers = (start ... start + line_count).to_a.map(&bolding).join("\n") 70: line_numbers << "\n" # also for Mr. MS Internet Exploder :-/ 71: line_numbers.gsub!(/\n/) { "<tt>\n</tt>" } 72: 73: line_numbers_table_tpl = TABLE.apply('LINE_NUMBERS', line_numbers) 74: gsub!(/<\/div>\n/) { '</div>' } 75: gsub!(/\n/) { "<tt>\n</tt>" } 76: wrap_in! line_numbers_table_tpl 77: @wrapped_in = :div 78: 79: when :list 80: opened_tags = [] 81: gsub!(/^.*$\n?/) do |line| 82: line.chomp! 83: 84: open = opened_tags.join 85: line.scan(%r!<(/)?span[^>]*>?!) do |close,| 86: if close 87: opened_tags.pop 88: else 89: opened_tags << $& 90: end 91: end 92: close = '</span>' * opened_tags.size 93: 94: "<li>#{open}#{line}#{close}</li>\n" 95: end 96: chomp!("\n") 97: wrap_in! LIST 98: @wrapped_in = :div 99: 100: else 101: raise ArgumentError, 'Unknown value %p for mode: expected one of %p' % 102: [mode, [:table, :list, :inline]] 103: end 104: 105: self 106: end
# File lib/coderay/encoders/html/output.rb, line 117 117: def stylesheet in_tag = false 118: Output.make_stylesheet @css, in_tag 119: end
# File lib/coderay/encoders/html/output.rb, line 113 113: def wrap *args 114: clone.wrap!(*args) 115: end
# File lib/coderay/encoders/html/output.rb, line 91 91: def wrap! element, *args 92: return self if not element or element == wrapped_in 93: case element 94: when :div 95: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil 96: wrap_in! DIV 97: when :span 98: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil 99: wrap_in! SPAN 100: when :page 101: wrap! :div if wrapped_in? nil 102: raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? :div 103: wrap_in! Output.page_template_for_css(@css) 104: when nil 105: return self 106: else 107: raise "Unknown value %p for :wrap" % element 108: end 109: @wrapped_in = element 110: self 111: 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