Module: Mrtable

Defined in:
lib/mrtable.rb,
lib/mrtable/version.rb

Defined Under Namespace

Classes: Table

Constant Summary collapse

VERSION = 
"0.0.3"

Class Method Summary collapse

Class Method Details

.col_len(col) ⇒ Object 



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# File 'lib/mrtable.rb', line 89

def self.col_len(col)
  (0...col.size).inject(0) { |sum, i|
    sum + (hankaku?(col[i]) ? 1 : 2)
  }
end

.complement_cols(cols, num_cols_max, val) ⇒ Object 



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# File 'lib/mrtable.rb', line 67

def self.complement_cols(cols, num_cols_max, val)
  (0...num_cols_max).map { |ci|
    if ci < cols.size
      cols[ci]
    else
      val
    end
  }
end

.generate(header_cols, rows) ⇒ Object 



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# File 'lib/mrtable.rb', line 228

def self.generate(header_cols, rows)
  table = Table.new(header_cols, rows)

  serealized = table.map_col_with_ci { |col, _|
    serealize_col col
  }

  maxlens = serealized.calc_maxlens()

  padded = serealized.map_col_with_ci { |col, ci|
    pad_col col, maxlens[ci]
  }

  lines = []
  lines << to_table_row(padded.header_cols)
  lines << to_table_row(maxlens.map { |len| "-" * len })
  lines += padded.rows.map { |cols|
    to_table_row(cols)
  }
  lines.map { |line| line + "\n" }.join("")
end

.hankaku?(c) ⇒ Boolean

32-126(0x20-0x7E), 65377-65439(0xFF61-0xFF9F)

Returns:

  • (Boolean) 


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# File 'lib/mrtable.rb', line 131

def self.hankaku?(c)
  (/^[ -~｡-ﾟ]$/ =~ c) ? true : false
end

.int?(s) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mrtable.rb', line 77

def self.int?(s)
  /^\-?[\d,]+$/ =~ s
end

.json_decode(str) ⇒ Object 



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# File 'lib/mrtable.rb', line 146

def self.json_decode(str)
  if /^".*"$/ =~ str
    JSON.parse('[' + str + ']')[0]
  else
    JSON.parse('["' + str + '"]')[0]
  end
end

.json_encode(val) ⇒ Object 



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# File 'lib/mrtable.rb', line 135

def self.json_encode(val)
  json = JSON.generate([val])
  if /^\["(.*)"\]$/ =~ json
    $1
  elsif /^\[(.+)\]$/ =~ json
    $1
  else
    json
  end
end

.pad_col(col, maxlen) ⇒ Object 



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# File 'lib/mrtable.rb', line 81

def self.pad_col(col, maxlen)
  if int? col
    pad_left col, maxlen
  else
    pad_right col, maxlen
  end
end

.pad_left(s, n) ⇒ Object 



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# File 'lib/mrtable.rb', line 103

def self.pad_left(s, n)
  rest = n - col_len(s)
  if rest <= 0
    return s
  end
  (" " * rest) + s
end

.pad_right(s, n) ⇒ Object 



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# File 'lib/mrtable.rb', line 95

def self.pad_right(s, n)
  rest = n - col_len(s)
  if rest <= 0
    return s
  end
  s + (" " * rest)
end

.parse(text, opts = {}) ⇒ Object 



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# File 'lib/mrtable.rb', line 196

def self.parse(text, opts = {})
  lines = text.split(/\r?\n/)
  lines2 = lines.reject { |line|
    /^\s*$/ =~ line ||
    /^\| \-\-\-+ \|/ =~ line
  }
  rows = lines2.map { |line|
    split_row(line)
  }
  raw = Table.new rows[0], rows[1..-1]

  stripped = raw.map_col_with_ci { |col, _|
    col.strip
  }

  parsed = stripped.map_col_with_ci { |col, _|
    parse_col col
  }

  if opts.has_key? :complement
    unless opts[:complement].is_a? String or opts[:complement].nil?
      raise "opts[:complement] must be String or nil"
    end
    parsed = parsed.complement opts[:complement]
  end

  {
    :header_cols => parsed.header_cols,
    :rows => parsed.rows
  }
end

.parse_col(col) ⇒ Object 



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# File 'lib/mrtable.rb', line 154

def self.parse_col(col)
  if col == ''
    nil
  elsif col == '""'
    ""
  else
    json_decode(col)
  end
end

.serealize_col(col) ⇒ Object 



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# File 'lib/mrtable.rb', line 111

def self.serealize_col(col)
  if col.nil?
    return ""
  elsif col == ""
    return '""'
  end

  ret = json_encode(col)
  if /^\s+/ =~ ret || /\s+$/ =~ ret || /^\-+$/ =~ ret
    ret = '"' + ret + '"'
  end

  ret.gsub("|", "\\|")
end

.split_row(line) ⇒ Object 



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# File 'lib/mrtable.rb', line 164

def self.split_row(line)
  line2 = line + " "
  cols = []
  buf = ""
  pos = 2
  pos_delta = nil

  num_repeat_max = line2.size
  num_repeat_max.times do
    break if pos >= line2.size
    pos_delta = 1
    rest = line2[pos..-1]
    if /^ \| / =~ rest
      cols << buf; buf = ""
      pos_delta = 3
    elsif /^\\/ =~ rest
      if rest[1] == "|"
        buf += rest[1]
        pos_delta = 2
      else
        buf += rest[0..1]
        pos_delta = 2
      end
    else
      buf += rest[0]
    end
    pos += pos_delta
  end

  cols
end

.to_table_row(cols) ⇒ Object 



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# File 'lib/mrtable.rb', line 126

def self.to_table_row(cols)
  "| " + cols.join(" | ") + " |"
end