Module: NHKore::Util

Defined in:
lib/nhkore/util.rb

Constant Summary collapse

CORE_DIR = 
'core'
WEB_DIR = 
'web'
JST_OFFSET =

Japan Standard Time (JST) time zone offset from UTC

'+09:00'
JST_OFFSET_HOUR = 
9
JST_OFFSET_MIN = 
0
HIRAGANA_REGEX = 
/\p{Hiragana}/.freeze
JPN_SPACE =

Must be double-quoted for escape chars

"\u3000"
KANA_REGEX = 
/\p{Hiragana}|\p{Katakana}/.freeze
KANJI_REGEX =

Han probably stands for Hanzi?

/\p{Han}/.freeze
KATAKANA_REGEX = 
/\p{Katakana}/.freeze
NORMALIZE_STR_REGEX = 
/[^[[:alpha:]]]+/.freeze
STRIP_WEB_STR_REGEX = 
/(\A[[:space:]]+)|([[:space:]]+\z)/.freeze
WEB_SPACES_REGEX = 
/[[:space:]]+/.freeze
JST_YEAR = 
jst_now.year
MAX_SANE_YEAR =

+1 Justin Case for time zone differences at the end of the year

JST_YEAR + 1
MIN_SANE_YEAR =

NHK was founded in 1924/25.

However, when was the website first created?

1924

Class Method Summary collapse

Class Method Details

.dir_str?(str) ⇒ Boolean

Returns:

  • (Boolean) 


49
50
51
 
# File 'lib/nhkore/util.rb', line 49

def self.dir_str?(str)
  return str.match?(%r{[/\\]\s*\z/})
end

.domain(host, clean: true) ⇒ Object 



53
54
55
56
57
58
59
60
 
# File 'lib/nhkore/util.rb', line 53

def self.domain(host,clean: true)
  require 'public_suffix'

  domain = PublicSuffix.domain(host)
  domain = unspace_web_str(domain).downcase if !domain.nil? && clean

  return domain
end

.dump_yaml(obj, flow_level: 8, stylers: nil) ⇒ Object 



62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/nhkore/util.rb', line 62

def self.dump_yaml(obj,flow_level: 8,stylers: nil)
  require 'psychgus'

  stylers = Array(stylers)

  return Psychgus.dump(obj,
    deref_aliases: true, # Dereference aliases for load_yaml()
    header: true, # %YAML [version]
    line_width: 10_000, # Try not to wrap; ichiman!
    stylers: [
      Psychgus::FlowStyler.new(flow_level), # Put extra details on one line (flow/inline style)
      Psychgus::NoSymStyler.new(cap: false), # Remove symbols, don't capitalize
      Psychgus::NoTagStyler.new, # Remove class names (tags)
    ].concat(stylers),
  )
end

.empty_web_str?(str) ⇒ Boolean

Returns:

  • (Boolean) 


79
80
81
 
# File 'lib/nhkore/util.rb', line 79

def self.empty_web_str?(str)
  return str.nil? || strip_web_str(str).empty?
end

.escape_html(str) ⇒ Object 



83
84
85
86
87
88
 
# File 'lib/nhkore/util.rb', line 83

def self.escape_html(str)
  str = CGI.escapeHTML(str)
  str = str.gsub("\n",'<br>')

  return str
end

.filename_str?(str) ⇒ Boolean

Returns:

  • (Boolean) 


90
91
92
93
 
# File 'lib/nhkore/util.rb', line 90

def self.filename_str?(str)
  # Do not use "!dir_str?()"! It's not the same meaning!
  return !str.match?(%r{[/\\]})
end

.hiragana?(str) ⇒ Boolean

Returns:

  • (Boolean) 


95
96
97
 
# File 'lib/nhkore/util.rb', line 95

def self.hiragana?(str)
  return HIRAGANA_REGEX =~ str
end

.jst_now ⇒ Object 



36
37
38
 
# File 'lib/nhkore/util.rb', line 36

def self.jst_now
  return Time.now.getlocal(JST_OFFSET)
end

.jst_time(time) ⇒ Object

This doesn’t modify the hour/minute according to JST_OFFSET, but instead, it just drops JST_OFFSET into it without adjusting it.



101
102
103
 
# File 'lib/nhkore/util.rb', line 101

def self.jst_time(time)
  return Time.new(time.year,time.month,time.day,time.hour,time.min,time.sec,JST_OFFSET)
end

.kana?(str) ⇒ Boolean

Returns:

  • (Boolean) 


105
106
107
 
# File 'lib/nhkore/util.rb', line 105

def self.kana?(str)
  return KANA_REGEX =~ str
end

.kanji?(str) ⇒ Boolean

Returns:

  • (Boolean) 


109
110
111
 
# File 'lib/nhkore/util.rb', line 109

def self.kanji?(str)
  return KANJI_REGEX =~ str
end

.katakana?(str) ⇒ Boolean

Returns:

  • (Boolean) 


113
114
115
 
# File 'lib/nhkore/util.rb', line 113

def self.katakana?(str)
  return KATAKANA_REGEX =~ str
end

.load_yaml(data, file: nil, **kargs) ⇒ Object 



117
118
119
120
121
122
123
124
125
126
127
128
 
# File 'lib/nhkore/util.rb', line 117

def self.load_yaml(data,file: nil,**kargs)
  require 'psychgus'

  return Psych.safe_load(data,
    aliases: false,
    filename: file,
    #freeze: true, # Not in this current version of Psych
    permitted_classes: [Symbol],
    symbolize_names: true,
    **kargs,
  )
end

.normalize_str(str) ⇒ Object 



130
131
132
 
# File 'lib/nhkore/util.rb', line 130

def self.normalize_str(str)
  return str.gsub(NORMALIZE_STR_REGEX,'')
end

.reduce_jpn_space(str) ⇒ Object 



134
135
136
137
 
# File 'lib/nhkore/util.rb', line 134

def self.reduce_jpn_space(str)
  # Do not strip; use a Japanese space
  return str.gsub(WEB_SPACES_REGEX,JPN_SPACE)
end

.reduce_space(str) ⇒ Object 



139
140
141
 
# File 'lib/nhkore/util.rb', line 139

def self.reduce_space(str)
  return str.gsub(WEB_SPACES_REGEX,' ')
end

.replace_uri_query!(uri, **new_query) ⇒ Object 



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
 
# File 'lib/nhkore/util.rb', line 143

def self.replace_uri_query!(uri,**new_query)
  return uri if new_query.empty?

  query = uri.query
  query = query.nil? ? [] : URI.decode_www_form(query)

  # First, remove the old ones.
  if !query.empty?
    new_query_keys = Set.new(new_query.keys.map do |key|
      unspace_web_str(key.to_s).downcase
    end)

    query.filter! do |q|
      if q.nil? || q.empty?
        false
      else
        key = unspace_web_str(q[0].to_s).downcase

        !new_query_keys.include?(key)
      end
    end
  end

  # Next, add the new ones.
  new_query.each do |key,value|
    query << [key,value.nil? ? '' : value]
  end

  uri.query = URI.encode_www_form(query)

  return uri
end

.sane_year?(year) ⇒ Boolean

Returns:

  • (Boolean) 


176
177
178
 
# File 'lib/nhkore/util.rb', line 176

def self.sane_year?(year)
  return year >= MIN_SANE_YEAR && year <= MAX_SANE_YEAR
end

.strip_web_str(str) ⇒ Object

String’s normal strip() method doesn’t work with special Unicode/HTML white space.



181
182
183
184
185
186
187
188
189
 
# File 'lib/nhkore/util.rb', line 181

def self.strip_web_str(str)
  # After testing with Benchmark, this is slower than one regex.
  #str = str.gsub(/\A[[:space:]]+/,'')
  #str = str.gsub(/[[:space:]]+\z/,'')

  str = str.gsub(STRIP_WEB_STR_REGEX,'')

  return str
end

.unspace_web_str(str) ⇒ Object 



191
192
193
 
# File 'lib/nhkore/util.rb', line 191

def self.unspace_web_str(str)
  return str.gsub(WEB_SPACES_REGEX,'')
end

.warn(msg, uplevel: 1) ⇒ Object 



195
196
197
 
# File 'lib/nhkore/util.rb', line 195

def self.warn(msg,uplevel: 1)
  Kernel.warn(msg,uplevel: uplevel)
end