Module: Uv

Defined in:
lib/uv.rb,
lib/uv/utility.rb,
lib/uv/version.rb,
lib/uv/render_processor.rb

Defined Under Namespace

Classes: RenderProcessor

Constant Summary collapse

Version = 
"0.12.2"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.default_style ⇒ Object

Returns the value of attribute default_style.



10
11
12
 
# File 'lib/uv.rb', line 10

def default_style
  @default_style
end

.render_path ⇒ Object

Returns the value of attribute render_path.



10
11
12
 
# File 'lib/uv.rb', line 10

def render_path
  @render_path
end

.syntax_path ⇒ Object

Returns the value of attribute syntax_path.



10
11
12
 
# File 'lib/uv.rb', line 10

def syntax_path
  @syntax_path
end

.syntaxes ⇒ Object

Returns the value of attribute syntaxes.



10
11
12
 
# File 'lib/uv.rb', line 10

def syntaxes
  @syntaxes
end

.theme_path ⇒ Object

Returns the value of attribute theme_path.



10
11
12
 
# File 'lib/uv.rb', line 10

def theme_path
  @theme_path
end

Class Method Details

.alpha_blend(bg, fg) ⇒ Object 



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/uv/utility.rb', line 10

def Uv.alpha_blend bg, fg
  unless bg =~ /^#((\d|[ABCDEF]){3}|(\d|[ABCDEF]){6}|(\d|[ABCDEF]){8})$/i
    raise(ArgumentError, "Malformed background color '#{bg}'" )
  end
  unless fg =~ /^#((\d|[ABCDEF]){3}|(\d|[ABCDEF]){6}|(\d|[ABCDEF]){8})$/i
    raise(ArgumentError, "Malformed foreground color '#{fg}'" )
  end
  
  if bg.size == 4
    tbg  =  (fg[1,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
    tbg +=  (fg[2,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
    tbg +=  (fg[3,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
    bg   =  "##{tbg}"
  end
  
  result = ""
  if fg.size == 4
    result += (fg[1,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
    result += (fg[2,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
    result += (fg[3,1].hex * 0xff / 0xf).to_s(16).upcase.rjust(2, '0')
  elsif fg.size == 9
    if bg.size == 7
      div0 = bg[1..-1].hex
      div1, alpha = fg[1..-1].hex.divmod( 0x100 )
      3.times {      
        div0, mod0 = div0.divmod( 0x100 )
        div1, mod1 = div1.divmod( 0x100 )
        result = ((mod0 * alpha + mod1 * ( 0x100 - alpha ) ) / 0x100).to_s(16).upcase.rjust(2, '0') + result
      } 
    else
      div_a, alpha_a = bg[1..-1].hex.divmod( 0x100 )
      div_b, alpha_b = fg[1..-1].hex.divmod( 0x100 )
      alpha = alpha_a + alpha_b * (0x100 - alpha_a)
      3.times {
        div_b, c_b = div_b.divmod( 0x100 )
        div_a, c_a = div_a.divmod( 0x100 )
        result = ((c_a * alpha_a + ( 0x100 - alpha_a ) * alpha_b * c_b ) / alpha).to_s(16).upcase.rjust(2, '0') + result
      } 
    end
    #result = "FF00FF"
  else
    result = fg[1..-1]
  end
  "##{result}"
end

.copy_files(output, output_dir) ⇒ Object 



39
40
41
42
43
44
 
# File 'lib/uv.rb', line 39

def Uv.copy_files output, output_dir
  Uv.path.each do |dir|
    dir_name = File.join( dir, "render", output, "files" )
    FileUtils.cp_r( Dir.glob(File.join( dir_name, "." )), output_dir ) if File.exists?( dir_name )
  end
end

.debug(text, syntax_name) ⇒ Object 



91
92
93
 
# File 'lib/uv.rb', line 91

def Uv.debug text, syntax_name
  syntax_node_for(syntax_name).parse(text, Textpow::DebugProcessor.new)
end

.foreground(bg) ⇒ Object 



2
3
4
5
6
7
8
 
# File 'lib/uv/utility.rb', line 2

def Uv.foreground bg
  fg = "#FFFFFF"
  3.times do |i|
    fg = "#000000" if bg[i*2+1, 2].hex > 0xFF / 2 
  end
  fg
end

.normalize_color(settings, color, fg = false) ⇒ Object 



56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/uv/utility.rb', line 56

def Uv.normalize_color settings, color, fg = false
  if color
    if fg
      alpha_blend( settings["foreground"] ? settings["foreground"] : "#000000FF", color )
    else
      alpha_blend( settings["background"] ? settings["background"] : "#000000FF", color )
    end
  else
    color
  end
end

.parse(text, output = "xhtml", syntax_name = nil, line_numbers = false, render_style = nil, headers = false) ⇒ Object 



85
86
87
88
89
 
# File 'lib/uv.rb', line 85

def Uv.parse text, output = "xhtml", syntax_name = nil, line_numbers = false, render_style = nil, headers = false
  RenderProcessor.load(output, render_style, line_numbers, headers) do |processor|
    syntax_node_for(syntax_name).parse(text, processor)
  end.string
end

.path ⇒ Object 



19
20
21
22
 
# File 'lib/uv.rb', line 19

def Uv.path
  result = []
  result << File.join(File.dirname(__FILE__), ".." )
end

.syntax_for_file(file_name) ⇒ Object 



58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
 
# File 'lib/uv.rb', line 58

def Uv.syntax_for_file file_name
  init_syntaxes unless @syntaxes
  first_line = ""
  File.open( file_name, 'r' ) { |f|
    while (first_line = f.readline).strip.size == 0; end
  }
  result = []
  @syntaxes.each do |key, value|
    assigned = false
    if value.fileTypes
      value.fileTypes.each do |t|
        if t == File.basename( file_name ) || t == File.extname( file_name )[1..-1]
          result << [key, value] 
          assigned = true
          break
        end
      end
    end
    unless assigned
      if value.firstLineMatch && value.firstLineMatch =~ first_line
        result << [key, value] 
      end
    end
  end
  result
end

.syntax_node_for(syntax) ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/uv.rb', line 24

def self.syntax_node_for(syntax)
  if !@syntaxes.key?(syntax)
    filename = File.join(@syntax_path, "#{syntax}.syntax")
    @syntaxes[syntax] = if File.exist?(filename)
      Textpow::SyntaxNode.load(filename)
    else
      false
    end
  end
  if !@syntaxes[syntax]
    raise ArgumentError, "No #{syntax}.syntax file in #{@syntax_path}"
  end
  @syntaxes[syntax]
end

.themes ⇒ Object 



52
53
54
55
56
 
# File 'lib/uv.rb', line 52

def Uv.themes
  Dir.glob( File.join(@theme_path, '*.css') ).collect do |f| 
    File.basename(f, '.css')
  end
end