Class: PPCommand::Main

Inherits:
Object
  • Object
show all
Defined in:
lib/ppcommand/main.rb

Instance Method Summary collapse

Instance Method Details

#execute(argv) ⇒ Object 



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
 
# File 'lib/ppcommand/main.rb', line 74

def execute(argv)
  opts = {:type => "auto"}
  opp = OptionParser.new

  opp.banner = "pp [options] [file|URI]"
  opp.on_tail("-h", "--help", "show this help.") do
    puts opp
    exit
  end
  opp.on_tail("-v", "--version", "show version.") do
    puts "ppcommand #{ PPCommand::VERSION }"
    exit
  end

  opp.on("-c", "--csv", "parse CSV and pp."){|x| opts[:type] = "csv"}
  opp.on("-C", "--csvtable", "parse CSV, add labels and pp."){|x| opts[:type] = "csvtable"}
  opp.on("-H", "--html", "parse HTML and pp."){|x| opts[:type] = "html"}
  opp.on("-j", "--json", "parse JSON and pp."){|x| opts[:type] = "json"}
  opp.on("-x", "--xml", "parse XML using REXML and pp."){|x| opts[:type] = "xml"}
  opp.on("-X", "--xmlsimple", "parse XML using XMLSimple and pp."){|x| opts[:type] = "xmlsimple"}
  opp.on("-y", "--yaml", "parse YAML and pp."){|x| opts[:type] = "yaml"}

  opp.on("-t", "--text", "do not parse. print plain text."){|x| opts[:type] = "text"}

  opp.parse!(argv)

  file = argv.shift

  source = ""
  if file.nil?
    source = STDIN.read
  elsif file=~ %r{^https?://}
    require 'open-uri'
    open(file) do |io|
      source = io.read
      if opts[:type] == "auto"
        t = io.content_type
        if t =~ /json/
          opts[:type] = "json"
        elsif t =~ /yaml/
          opts[:type] = "yaml"
        elsif t =~ /csv/
          opts[:type] = "csv"
        elsif t =~ /html/
          opts[:type] = "html"
        elsif t =~ /xml/
          opts[:type] = "xml"
        end
      end
    end
  else
    source = File.read(file)
  end

  if opts[:type] == "auto"
    if file =~ /\.xml$/i
      opts[:type] = "xml"
    elsif file =~ /\.json$/i
      opts[:type] = "json"
    elsif file =~ /\.(?:csv|txt)$/i
      opts[:type] = "csv"
    elsif file =~ /\.html$/i
      opts[:type] = "html"
    else
      opts[:type] = "yaml"
    end
  end

  case opts[:type]
  when "xml"
    pp_xml(source)
  when "xmlsimple"
    pp_xmlsimple(source)
  when "json"
    pp_json(source)
  when "csv"
    pp_csv(source)
  when "csvtable"
    pp_csvtable(source)
  when "html"
    pp_html(source)
  when "text"
    puts source
  else "yaml"
    pp_yaml(source)
  end
end

#get_att_list(node, itab = 0) ⇒ Object 



191
192
193
194
195
 
# File 'lib/ppcommand/main.rb', line 191

def get_att_list(node, itab = 0)
  att_list = ''
  node.attributes.each { |attribute, val| att_list += "\n" + (" " * itab) + " #{attribute} = \"#{val}\"" }
  att_list
end

#pp_csv(source) ⇒ Object 



34
35
36
37
 
# File 'lib/ppcommand/main.rb', line 34

def pp_csv(source)
  require 'csv'
  pp CSV.parse(source)
end

#pp_csvtable(source) ⇒ Object 



39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
 
# File 'lib/ppcommand/main.rb', line 39

def pp_csvtable(source)
  require 'csv'
  data = CSV.parse(source)
  keys = data.shift
  result = []
  data.each do |values|
    entry = []
    i = nil
    keys.each_with_index do |k, i|
      entry << [i, k, values[i]]
    end
    if keys.length < values.length
      values[i + 1 .. -1].each_with_index do |v, j|
        entry << [i + j + 1, nil, v]
      end
    end
    result << entry
  end
  pp result
  # data.map {|values| Hash[* [keys,values].transpose.flatten] }
end

#pp_html(source) ⇒ Object 



61
62
63
64
65
66
67
68
69
70
71
72
 
# File 'lib/ppcommand/main.rb', line 61

def pp_html(source)
  begin
    require 'nokogiri'
  rescue Exception => e
    STDERR.puts "'nokogiri' is required to parse HTML."
    STDERR.puts "$ gem install nokorigi"
    return
  end
  doc = Nokogiri.HTML(source)
  # doc.serialize(:encoding => 'UTF-8', :save_with =>  Nokogiri::XML::Node::SaveOptions::FORMAT | Nokogiri::XML::Node::SaveOptions::AS_XML)
  pp doc
end

#pp_json(source) ⇒ Object 



22
23
24
25
26
 
# File 'lib/ppcommand/main.rb', line 22

def pp_json(source)
  require 'rubygems'
  require 'json'
  pp JSON.parse(source)
end

#pp_xml(source) ⇒ Object 



10
11
12
13
14
 
# File 'lib/ppcommand/main.rb', line 10

def pp_xml(source)
  require 'rubygems'
  require 'rexml/document'
  puts pretty_xml(REXML::Document.new(source))
end

#pp_xmlsimple(source) ⇒ Object 



16
17
18
19
20
 
# File 'lib/ppcommand/main.rb', line 16

def pp_xmlsimple(source)
  require 'rubygems'
  require 'xmlsimple'
  pp XmlSimple.xml_in(source)
end

#pp_yaml(source) ⇒ Object 



28
29
30
31
32
 
# File 'lib/ppcommand/main.rb', line 28

def pp_yaml(source)
  YAML.each_document(StringIO.new(source)) do |obj|
    pp obj
  end
end

#pretty_xml(doc) ⇒ Object 



197
198
199
200
201
202
203
204
205
206
207
208
209
 
# File 'lib/ppcommand/main.rb', line 197

def pretty_xml(doc)
  buffer = ''
  xml_declaration = doc.to_s.match('<\?.*\?>').to_s
  buffer += "#{xml_declaration}\n" if not xml_declaration.nil?
  xml_doctype = doc.to_s.match('<\!.*\">').to_s
  buffer += "#{xml_doctype}\n" if not xml_doctype.nil?
  buffer += "<#{doc.root.name}#{get_att_list(doc.root)}"
  if doc.root.to_a.length > 0
    buffer +=">\n#{x_pretty_print(doc.root,2)}</#{doc.root.name}>"
  else
    buffer += " />\n"
  end
end

#x_pretty_print(parent_node, itab) ⇒ Object

original from snippets.dzone.com/posts/show/4953



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
 
# File 'lib/ppcommand/main.rb', line 163

def x_pretty_print(parent_node, itab)
  buffer = ''
  parent_node.elements.each do |node|
  buffer += ' ' * itab + "<#{node.name}#{get_att_list(node, itab)}"
    if node.to_a.length > 0
      buffer += ">"
      if node.text.nil?
        buffer += "\n"
        buffer += x_pretty_print(node,itab+2)
        buffer += ' ' * itab + "</#{node.name}>\n"
      else
        node_text = node.text.strip
        if node_text != ''
          buffer += node_text
          buffer += "</#{node.name}>\n"
        else
          buffer += "\n" + x_pretty_print(node,itab+2)
          buffer += ' ' * itab + "</#{node.name}>\n"
        end
      end
    else
      buffer += " />\n"
    end

  end
  buffer
end