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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
module ContentGenerator
wpath = File.expand_path(File.join(__FILE__, '../../../data/words'))
WORDS = File.readlines(wpath).collect {|w| w.strip}
CHARS = 'abcdefghijklmnopqrstuvwxyz1234567890`~!@#$%^&*()_-+={[}]|\\:;"\'<,>.?/'
ALNUM = 'abcdefghijklmnopqrstuvwxyz1234567890'
ALPHA = 'abcdefghijklmnopqrstuvwxyz'
URL_SUFFIXES = %w{com net org biz info}
URL_COUNTRY_CODES = %w{au jp uk nz tv}
TEXT_CACHE = {}
WORD_CACHE = {}
MARKDOWN_EMPHASIS_MARKERS = %w{* _ ** __ ` ``}
MARKDOWN_LIST_MARKERS = %w{- * + 1.}
def self.generate_text(length = 5..10, options = {})
if length.is_a?(Range)
raise ArgumentError, "range must be positive" unless length.min
length = length.min + rand(length.max - length.min)
end
text = ''
if options[:chars]
while word = random_word and text.size + word.size < length
text << word + ' '
end
text.strip!
text << generate_word(length - text.size)
else
text = Array.new(length) {|x| random_word}.join(' ')
end
if key = options[:unique]||options[:key]
cache = TEXT_CACHE[key]||={}
if cache[text]
return generate_text(options)
else
return cache[text] = true
end
end
return text
end
def self.generate_word(length = 5..10, options = {})
if length.is_a?(Range)
raise ArgumentError, "range must be positive" unless length.min
length = length.min + rand(length.max - length.min)
end
word = ''
case options[:charset]
when :alpha
word = Array.new(length) {|x| random_alpha}.pack('c*')
when :alnum
word = Array.new(length) {|x| random_alnum}.pack('c*')
else
word = Array.new(length) {|x| random_char}.pack('c*')
end
if key = options[:unique]||options[:key]
cache = WORD_CACHE[key]||={}
if cache[word]
return generate_word(options)
else
cache[word] = true
end
end
return word
end
def self.generate_alpha_word(length = 5..10, options = {})
options[:charset] = :alpha
generate_word(length, options)
end
def self.generate_alnum_word(length = 5..10, options = {})
options[:charset] = :alnum
generate_word(length, options)
end
def self.generate_email(options = {})
num_name_sections = 1 + rand(2)
num_url_sections = 1 + rand(2)
name = Array.new(num_name_sections) {|x| generate_alnum_word }.join('.')
url = [generate_alnum_word]
url += Array.new(num_url_sections) {|x| generate_alpha_word(2..3) }
url = url.join('.')
name + '@' + url
end
def self.generate_url(options = {})
ext = random_from(URL_SUFFIXES)
ext += '.' + random_from(URL_COUNTRY_CODES) if rand(2) > 0
"http://www.#{generate_alnum_word}.#{ext}/"
end
def self.generate_markdown(length = 100..1000, options = {})
@footnote_num = 0
if length.is_a?(Range)
raise ArgumentError, "range must be positive" unless length.min
length = length.min + rand(length.max - length.min)
end
text = []
while length > 0
case rand
when 0.3..1 # generate paragraph
l = gen_num(length, 50)
paragraph = gen_md_para(l)
if rand > 0.95 # make block quote
paragraph = '> ' + paragraph
end
text << paragraph
length -= l
when 0.2..0.3 # generate list
li = random_from(MARKDOWN_LIST_MARKERS) + ' '
num_elements = gen_num(length/5, 10)
num_elements.times do
break if length == 0
if rand > 0.75 # do paragraph list element
xli = li
(2 + rand(3)).times do |i|
break if length == 0
l = gen_num(length, 10)
text << xli
text << gen_md_para(l, :no_footnotes => true)
text << "\n\n"
xli = ' ' * xli.size if i == 0
length -= l
end
else
l = gen_num(length, 10)
text << li
text << gen_md_para(l, :no_footnotes => true)
text << "\n"
length -= l
end
end
when 0.1..0.2 # header
l = gen_num(length, 7)
t = gen_md_para(l, :no_footnotes => true)
if rand > 0.8
t += "\n" + random_from(%w{= -}) * t.size
else
t = ('#' * (1 + rand(6))) + ' ' + t
end
length -= l
text << t
else
text << '---'
end
text << "\n\n"
end
text.join()
end
def self.random_word
random_from(WORDS)
end
def self.random_char
random_from(CHARS)
end
def self.random_alnum
random_from(ALNUM)
end
def self.random_alpha
random_from(ALPHA)
end
private
def self.gen_md_para(length, options = {})
link_words = rand(1 + length/10)
length -= link_words
text = gen_md_text(length)
text << "\n"
footnote_cnt = 0
while link_words > 0
if options[:no_footnotes] or rand > 0.5
if rand > 0.6 # inline link
l = gen_num(link_words, 5)
link = "[#{gen_md_text(l)}](#{generate_url} \"#{generate_text(1 + rand(5))}\")"
text.insert(rand(text.length - footnote_cnt), link)
link_words -= l
else # auto link
text.insert(rand(text.length - footnote_cnt), "<#{generate_url}>")
link_words -= 1
end
else # footnote link
l = gen_num(link_words, 5)
reference = "[#{gen_md_text(l).join(' ')}][#{@footnote_num}]"
text.insert(rand(text.length - footnote_cnt), reference)
text << link = "\n[#{@footnote_num}]: #{generate_url} \"#{generate_text(1 + rand(5))}\""
@footnote_num += 1
footnote_cnt += 1
link_words -= l
end
end
text.pop if text.last == "\n"
text.join(' ')
end
def self.gen_md_text(length)
text = Array.new(length) {|x| random_word}
if rand > 0.8
(1 + rand(Math.sqrt(length))).times do
first = rand(text.size)
last = first + rand(3)
last = text.size - 1 if last >= text.size
words = text.slice!(first..last)
em = random_from(MARKDOWN_EMPHASIS_MARKERS)
words = "#{em}#{words.join(' ')}#{em}" unless words.join.index(em[0,1])
text.insert(first, words).flatten!
end
end
text
end
def self.gen_num(max1, max2)
minmax = [max1, max2].min
return minmax == 0 ? 0 : 1 + rand(minmax)
end
def self.random_from(list)
list[rand(list.size)]
end
end
|
