Class: Tabmani::Table

Inherits:
Tefil::TextFilterBase
  • Object
show all
Defined in:
lib/tabmani/table.rb

Defined Under Namespace

Classes: DuplicateCellError, ParseError, SymbolMismatchError

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(matrix:, indent: 0) ⇒ Table

Returns a new instance of Table.



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# File 'lib/tabmani/table.rb', line 17

def initialize(matrix: , indent: 0)
  @matrix = matrix
  @titles = nil
  @indent = indent
  @hlines = []
end

Instance Attribute Details

#indent ⇒ Object (readonly)

Returns the value of attribute indent.



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# File 'lib/tabmani/table.rb', line 11

def indent
  @indent
end

#matrix ⇒ Object (readonly)

Returns the value of attribute matrix.



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# File 'lib/tabmani/table.rb', line 11

def matrix
  @matrix
end

#titles ⇒ Object (readonly)

Returns the value of attribute titles.



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# File 'lib/tabmani/table.rb', line 11

def titles
  @titles
end

Class Method Details

.dump_column_format(matrix:, hlines: [], io: $stdout, indent: 0, titles: nil, just: :left, separator: ' ') ⇒ Object 



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# File 'lib/tabmani/table.rb', line 74

def self.dump_column_format(matrix:,
                            hlines: [],
                            io: $stdout,
                            indent: 0,
                            titles: nil,
                            just: :left,
                            separator: ' ')
  matrix = [titles, * matrix] if titles
  maxima =  self.max_lengths(matrix)
  lines = matrix.map do |row|
    self.line_str(items: row,
                  lengths: maxima,
                  separator: separator,
                  just: just,
                  indent: indent)
  end
  hlines.sort.reverse.each { |index| lines.insert(index, '-' * whole_length(matrix)) }
  io.puts lines.join("\n")
end

.get_ranges(ary) ⇒ Object

true の範囲を示す二重配列を返す。各要素は 始点..終点 の各インデックスで出来た範囲。各要素は[始点, 終点] の各インデックス。



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# File 'lib/tabmani/table.rb', line 101

def self.get_ranges(ary)
  results = []
  start = nil
  prev = false
  ary << false # for true in final item
  ary.each_with_index do |cur, i|
    if prev == false && cur == true
      start = i
      prev = cur
    elsif prev == true && cur == false
      results << (start..(i - 1))
      prev = cur
    else
      next
    end
  end
  ary.pop
  results
end

.line_str(items:, lengths:, lineend: nil, just: :left, indent: 0, separator: ' ') ⇒ Object 



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# File 'lib/tabmani/table.rb', line 165

def self.line_str(items: ,
                  lengths: ,
                  lineend: nil,
                  just: :left,
                  indent: 0,
                  separator: ' ')

  new_items = []
  lengths.each_with_index do |length, index|
    item = items[index].to_s
    new_items[index] = self.padding(str: item, width: lengths[index], place: just)
  end
  str = " " * indent
  str += new_items.join(separator)
  if lineend
    str += lineend
  else
    str.sub!(/ +$/, "")
  end
  str
end

.max_lengths(matrix) ⇒ Object

return array of max size of item at index



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# File 'lib/tabmani/table.rb', line 188

def self.max_lengths(matrix)
  results = []
  matrix.each do |row|
    row.each_with_index do |item, index|
      item = item.to_s
      results[index] ||= 0
      size = Tabmani::Table.print_size(item)
      results[index] = size if results[index] < size
    end
  end
  results
end

.num_columns(matrix) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 161

def self.num_columns(matrix)
  matrix.map{|items| items.size}.max
end

.padding(str:, width:, padding: ' ', place: :left) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 141

def self.padding(str: , width: , padding: ' ', place: :left)
  output_width = str.each_char.map{|c| c.bytesize == 1 ? 1 : 2}.reduce(0, &:+)
  padding_size = [0, width - output_width].max

  case place
  when :left   ; left = 0                ; right = padding_size
  when :right  ; left = padding_size     ; right = 0
  when :center ; left = padding_size / 2 ; right = padding_size - left
  else
    raise SymbolMismatchError, place
  end
  (padding * left) + str + (padding * right)
end

.parse(io:, style:, separator: ',') ⇒ Object

Wrapper for various parse method. style: :csv, :blank, or :column separator: option for separator style



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# File 'lib/tabmani/table.rb', line 27

def self.parse(io: , style: , separator: ',')
  case style
  when :csv    ; self.parse_csv(io)
  when :blank  ; self.parse_blanks_separated_value(io)
  when :column ; self.parse_column_based_value(io)
  when :separator ; self.parse_separator(io, separator)
  else;
    raise ParseError, "Unknown style: #{style}"
  end
end

.parse_blanks_separated_value(io) ⇒ Object

blanks_separated_value



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# File 'lib/tabmani/table.rb', line 51

def self.parse_blanks_separated_value(io)
  lines = io.readlines
  indent = lines.map{|line| /^(\s*)/ =~ line; $1.length}.min
  matrix = lines.map { |line| line.strip.split(/\s+/) }

  lines.map { |line| line.strip.split(/\s+/) }

  self.new(matrix: matrix, indent: indent)
end

.parse_column_based_value(io) ⇒ Object

column_based_value 縦に貫通する空白列を区切りにする。各要素の空白は strip する。



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# File 'lib/tabmani/table.rb', line 64

def self.parse_column_based_value(io)
  lines = io.readlines
  return if lines.empty?
  lines.map!      { |line| line.chomp  }
  lines.delete_if { |line| line.empty? } # delete line consist of linefeed only.
  ranges = self.get_ranges(self.projection_ary(lines))
  matrix = lines.map { |line| ranges.map { |range| line[range].to_s.strip} }
  self.new(matrix: matrix)
end

.parse_csv(io) ⇒ Object

CSV



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# File 'lib/tabmani/table.rb', line 39

def self.parse_csv(io)
  self.new(matrix: CSV.parse(io))
end

.parse_separator(io, separator) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 43

def self.parse_separator(io, separator)

  lines = io.readlines
  matrix = lines.map { |line| line.chomp.split(separator) }
  self.new(matrix: matrix)
end

.print_size(string) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 94

def self.print_size(string)
  string.each_char.map{|c| c.bytesize == 1 ? 1 : 2}.reduce(0, &:+)
end

.projection_ary(lines) ⇒ Object

全ての文字列の最大長を要素数とする配列で、空白文字以外があれば true, 全て空白文字ならば false にした配列。



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# File 'lib/tabmani/table.rb', line 123

def self.projection_ary(lines)
  return [] if lines.empty?
  max_length = lines.max_by{|line| line.size}.size
  results = Array.new(max_length).fill(false)
  lines.each do |line|
    line.chomp.size.times do |i|
      c = line[i]
      next if results[i] == true
      if c == ' '
        next
      else
        results[i] = true
      end
    end
  end
  results
end

.whole_length(matrix) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 155

def self.whole_length(matrix)
  result = 0
  self.max_lengths(matrix).each { |l| result += l}
  result += num_columns(matrix) - 1
end

Instance Method Details

#add_hline(num) ⇒ Object

num is the index of row number below the horizontal line.



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# File 'lib/tabmani/table.rb', line 419

def add_hline(num)
  @hlines << num
end

#add_sum(key) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 401

def add_sum(key)
  index = key.to_i - 1
  sum = 0
  @matrix.each do |items|
    str = items[index]
    if str.include?('.')
      sum += str.to_f
    else
      sum += str.to_i
    end
  end
  items = Array.new(num_columns).fill('')
  items[index] = sum.to_s
  add_hline( @matrix.size)
  @matrix << items
end

#analyze(io:, keys:) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 364

def analyze(io: , keys:)
  io.puts

  unless @titles
    @titles = []
    num_columns.times do |i|
      @titles[i] = @matrix[0][i].to_s
    end
  end

  if @matrix.size != 0
    results = []
    results << %w(key head types)
    @titles.size.times do |i|
      results << [(i+1).to_s, @titles[i].strip,
        @matrix.map {|items| items[i]}.sort_by{|j| j.to_s}.uniq.size.to_s
      ]
    end
    Tabmani::Table.dump_column_format(matrix: results, io: io)
  end

  unless keys.empty?
    io.puts
    io.puts "key analysis"
    keys.each do |key|
      io.puts "(key=#{key})"
      values = @matrix.map{|items| items[key.to_i-1] }
      names = values.sort.uniq
      results = []
      names.each { |name| results << [name, values.count(name).to_s] }
      results.sort_by!{|v| v[1].to_i}
      Tabmani::Table.dump_column_format(matrix: results, io: io)
      io.puts
    end
  end
end

#dump(io:, style:, just: :left, separator: ' ') ⇒ Object

Wrapper for various dump method.



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# File 'lib/tabmani/table.rb', line 202

def dump(io: , style: , just: :left, separator: ' ')
  case style
  when :column ; dump_column_format(io: io, just: just, separator: separator )
  when :csv    ; dump_csv(io: io)
  when :mds    ; dump_md_simple(io: io, just: just )
  when :tex    ; dump_tex(io: io, just: just )
  else
    raise ParseError, "Unknown style: #{style}"
  end
end

#dump_column_format(io: $stdout, just: :left, separator: ' ') ⇒ Object 



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# File 'lib/tabmani/table.rb', line 213

def dump_column_format(io: $stdout, just: :left, separator: ' ')
  self.class.dump_column_format(matrix: @matrix,
                                hlines: @hlines,
                                titles: @titles,
                                io: io,
                                indent: @indent,
                                just: just,
                                separator: separator)
end

#dump_csv(io:) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 223

def dump_csv(io: )
  matrix = @matrix
  matrix = [@titles, * @matrix] if @titles
  csv_string = CSV.generate do |csv|
    matrix.each { |items| csv << items }
  end
  io.print csv_string
end

#dump_md_simple(io: $stdout, just: :left) ⇒ Object

markdown simple table style



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# File 'lib/tabmani/table.rb', line 233

def dump_md_simple(io: $stdout, just: :left)
  if @titles
    matrix = [@titles, * @matrix] if @titles
  else
    matrix = @matrix.clone
  end
  matrix.insert(1, line_row)
  self.class.dump_column_format(io: io, matrix: matrix, just: just)
end

#dump_tex(io: $stdout, just: :left) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 243

def dump_tex(io: $stdout, just: :left)
  case just
  when :left   ; just_char = 'l'
  when :right  ; just_char = 'r'
  when :center ; just_char = 'c'
  end

  maxima = max_lengths
  h_size = @matrix.map{|row| row.size }.max

  io.puts "\\begin{tabular}{#{just_char * h_size }}"

  lines = []
  if @titles
    lines << self.class.line_str(items: @titles,
                  lengths: maxima,
                  separator: " & ",
                  just: just,
                  lineend: ' \\\\',
                  indent: 2)
    @hlines << 1
  end

  @matrix.each do |row|
    lines << self.class.line_str(items: row,
                  lengths: maxima,
                  separator: " & ",
                  just: just,
                  lineend: ' \\\\',
                  indent: 2)
  end
  #@hlines = [0, maxima.size] if @hlines.empty?
  @hlines << 0
  @hlines << maxima.size
  @hlines.sort.reverse.each do |index|
    lines.insert(index, "  \\hline")
  end
  io.puts lines.join("\n")
  io.puts "\\end{tabular}"
end

#filter(key, val) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 317

def filter(key, val)
  result = Marshal.load(Marshal.dump(self))
  result.filter!(key, val)
  result
end

#filter!(key, val) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 311

def filter!(key, val)
  @matrix.select! do |items|
    items[key.to_i - 1] == val
  end
end

#max_lengths ⇒ Object

return array of max size of item at index



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# File 'lib/tabmani/table.rb', line 357

def max_lengths
  matrix = @matrix
  matrix = [@titles, * @matrix] if @titles
  self.class.max_lengths(matrix)
end

#reform(key_x, key_y, key_val) ⇒ Object 



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# File 'lib/tabmani/table.rb', line 323

def reform(key_x, key_y, key_val)
  x_index = key_x  .to_i - 1
  y_index = key_y  .to_i - 1
  v_index = key_val.to_i - 1

  data_hash = {}
  xs = []
  ys = []
  @matrix.each do |items|
    next if items.empty?
    x = items[x_index]
    y = items[y_index]
    v = items[v_index]
    data_hash[y] ||= {}
    raise DuplicateCellError, "Duplicated condition: #{x}, #{y}" if data_hash[y][x]
    data_hash[y][x] = v
    xs << x
    ys << y
  end

  xs = xs.sort.uniq
  ys = ys.sort.uniq
  matrix = []
  matrix << [''] + xs
  ys.each do |y|
    items = []
    items << y
    xs.each { |x| items << data_hash[y][x] }
    matrix << items
  end
  @matrix = matrix
end

#set_title ⇒ Object 



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# File 'lib/tabmani/table.rb', line 430

def set_title
  @titles = @matrix.shift
end

#show_keys(io: $stdout, separator: ' ') ⇒ Object 



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# File 'lib/tabmani/table.rb', line 284

def show_keys(io: $stdout, separator: ' ')
  matrix = []
  matrix << line_row

  tmp = []
  max_lengths.size.times do |i|
    tmp << (i + 1).to_s
  end
  matrix << tmp

  self.class.dump_column_format(matrix: matrix, io: io, indent: @indent)
end

#strip ⇒ Object

delete spaces head or tail in each items. Destructive



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# File 'lib/tabmani/table.rb', line 424

def strip
  @matrix.map! do |items|
    items.map {|str| str.strip}
  end
end

#transpose ⇒ Object 



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# File 'lib/tabmani/table.rb', line 305

def transpose
  result = Marshal.load(Marshal.dump(self))
  result.transpose!
  result
end

#transpose! ⇒ Object

transpose matrix. empty cell is filled by empty String, ”. thanks: www.tom08.net/entry/2017/12/21/125127



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# File 'lib/tabmani/table.rb', line 300

def transpose!
  max_length = @matrix.max_by(&:size).size
  @matrix = @matrix.map { |m| m.fill('', m.size, max_length - m.size) }.transpose
end