Class: Tabelr::TableFormator

Inherits:
Object
  • Object
show all
Defined in:
lib/tabelr/table_formater.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TableFormator

Returns a new instance of TableFormator.



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# File 'lib/tabelr/table_formater.rb', line 4

def initialize
  @lines = []
  @line = []
end

Instance Method Details

#analyse ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 43

def analyse
  @max_len = []
  @lines.each do |line|
    line.each_with_index do |item, i|
      @max_len[i] = max @max_len[i], item.to_s.length
    end
  end
end

#bank ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 19

def bank
  @lines << @line.dup
  @line.clear
end

#convert(json) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 9

def convert json
  parse json
  analyse
  dump
end

#divider ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 76

def divider
  s = "+"
  @max_len.each { |n| s += "-" * (n+2) + "+" }
  s += "\n"
end

#dump ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 52

def dump
  output = ""
  output << divider
  @lines.each_with_index do |line, index|
    output << divider if index == 1
    line.each_with_index do |item, i|
      output << format(item.to_s, @max_len[i])
    end
    output << "|\n"
  end
  output << divider
end

#format(text, count) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 72

def format text, count
  "| #{text} " + " " * (count-text.length)
end

#max(a, b) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 65

def max a, b
  return a if b.nil?
  return b if a.nil?
  return a if a > b
  b
end

#parse(json) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 24

def parse json
  @header = true
  json.each_value { |h| parse_hash h }
end

#parse_hash(hash) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 29

def parse_hash hash
  if @header
    hash.first.each_key { |key| stash key }
    bank
    @header = false
  end

  # content/row
  hash.each do |line|
    line.each_value { |value| stash value }
    bank
  end
end

#stash(data) ⇒ Object 



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# File 'lib/tabelr/table_formater.rb', line 15

def stash data
  @line << data
end