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
|
# :markup: markdown
##
# Outputs parsed markup as Markdown
class RDoc::Markup::ToMarkdown < RDoc::Markup::ToRdoc
##
# Creates a new formatter that will output Markdown format text
def initialize markup = nil
super
@headings[1] = ['# ', '']
@headings[2] = ['## ', '']
@headings[3] = ['### ', '']
@headings[4] = ['#### ', '']
@headings[5] = ['##### ', '']
@headings[6] = ['###### ', '']
@hard_break = " \n"
end
##
# Maps attributes to HTML sequences
def init_tags
add_tag :BOLD, '**', '**'
add_tag :EM, '*', '*'
add_tag :TT, '`', '`'
end
##
# Adds a newline to the output
def handle_special_HARD_BREAK special
" \n"
end
##
# Finishes consumption of `list`
def accept_list_end list
@res << "\n"
super
end
##
# Finishes consumption of `list_item`
def accept_list_item_end list_item
width = case @list_type.last
when :BULLET then
4
when :NOTE, :LABEL then
use_prefix
4
else
@list_index[-1] = @list_index.last.succ
4
end
@indent -= width
end
##
# Prepares the visitor for consuming `list_item`
def accept_list_item_start list_item
type = @list_type.last
case type
when :NOTE, :LABEL then
bullets = Array(list_item.label).map do |label|
attributes(label).strip
end.join "\n"
bullets << "\n:"
@prefix = ' ' * @indent
@indent += 4
@prefix << bullets + (' ' * (@indent - 1))
else
bullet = type == :BULLET ? '*' : @list_index.last.to_s + '.'
@prefix = (' ' * @indent) + bullet.ljust(4)
@indent += 4
end
end
##
# Prepares the visitor for consuming `list`
def accept_list_start list
case list.type
when :BULLET, :LABEL, :NOTE then
@list_index << nil
when :LALPHA, :NUMBER, :UALPHA then
@list_index << 1
else
raise RDoc::Error, "invalid list type #{list.type}"
end
@list_width << 4
@list_type << list.type
end
##
# Adds `rule` to the output
def accept_rule rule
use_prefix or @res << ' ' * @indent
@res << '-' * 3
@res << "\n"
end
##
# Outputs `verbatim` indented 4 columns
def accept_verbatim verbatim
indent = ' ' * (@indent + 4)
verbatim.parts.each do |part|
@res << indent unless part == "\n"
@res << part
end
@res << "\n" unless @res =~ /\n\z/
end
end
|
