summaryrefslogtreecommitdiff
path: root/jni/ruby/lib/rdoc/generator/markup.rb
blob: 788e5a485df40865a0bc486321dcf5afafc85ffd (plain)
1
2
3
4
5
6
7
8
9
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
55
56
57
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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
##
# Handle common RDoc::Markup tasks for various CodeObjects
#
# This module is loaded by generators.  It allows RDoc's CodeObject tree to
# avoid loading generator code to improve startup time for +ri+.

module RDoc::Generator::Markup

  ##
  # Generates a relative URL from this object's path to +target_path+

  def aref_to(target_path)
    RDoc::Markup::ToHtml.gen_relative_url path, target_path
  end

  ##
  # Generates a relative URL from +from_path+ to this object's path

  def as_href(from_path)
    RDoc::Markup::ToHtml.gen_relative_url from_path, path
  end

  ##
  # Handy wrapper for marking up this object's comment

  def description
    markup @comment
  end

  ##
  # Creates an RDoc::Markup::ToHtmlCrossref formatter

  def formatter
    return @formatter if defined? @formatter

    options = @store.rdoc.options
    this = RDoc::Context === self ? self : @parent

    @formatter = RDoc::Markup::ToHtmlCrossref.new options, this.path, this
    @formatter.code_object = self
    @formatter
  end

  ##
  # Build a webcvs URL starting for the given +url+ with +full_path+ appended
  # as the destination path.  If +url+ contains '%s' +full_path+ will be
  # will replace the %s using sprintf on the +url+.

  def cvs_url(url, full_path)
    if /%s/ =~ url then
      sprintf url, full_path
    else
      url + full_path
    end
  end

end

class RDoc::CodeObject

  include RDoc::Generator::Markup

end

class RDoc::MethodAttr

  @add_line_numbers = false

  class << self
    ##
    # Allows controlling whether <tt>#markup_code</tt> adds line numbers to
    # the source code.

    attr_accessor :add_line_numbers
  end

  ##
  # Prepend +src+ with line numbers.  Relies on the first line of a source
  # code listing having:
  #
  #   # File xxxxx, line dddd
  #
  # If it has this comment then line numbers are added to +src+ and the <tt>,
  # line dddd</tt> portion of the comment is removed.

  def add_line_numbers(src)
    return unless src.sub!(/\A(.*)(, line (\d+))/, '\1')
    first = $3.to_i - 1
    last  = first + src.count("\n")
    size = last.to_s.length

    line = first
    src.gsub!(/^/) do
      res = if line == first then
              " " * (size + 1)
            else
              "<span class=\"line-num\">%2$*1$d</span> " % [size, line]
            end

      line += 1
      res
    end
  end

  ##
  # Turns the method's token stream into HTML.
  #
  # Prepends line numbers if +add_line_numbers+ is true.

  def markup_code
    return '' unless @token_stream

    src = RDoc::TokenStream.to_html @token_stream

    # dedent the source
    indent = src.length
    lines = src.lines.to_a
    lines.shift if src =~ /\A.*#\ *File/i # remove '# File' comment
    lines.each do |line|
      if line =~ /^ *(?=\S)/
        n = $&.length
        indent = n if n < indent
        break if n == 0
      end
    end
    src.gsub!(/^#{' ' * indent}/, '') if indent > 0

    add_line_numbers(src) if RDoc::MethodAttr.add_line_numbers

    src
  end

end

class RDoc::ClassModule

  ##
  # Handy wrapper for marking up this class or module's comment

  def description
    markup @comment_location
  end

end

class RDoc::Context::Section

  include RDoc::Generator::Markup

end

class RDoc::TopLevel

  ##
  # Returns a URL for this source file on some web repository.  Use the -W
  # command line option to set.

  def cvs_url
    url = @store.rdoc.options.webcvs

    if /%s/ =~ url then
      url % @relative_name
    else
      url + @relative_name
    end
  end

end