Top Level Namespace

Defined Under Namespace

Classes: Array, String

Instance Method Summary collapse

Instance Method Details

#tabulate(labels, data, opts = { }) ⇒ Object

tabulate arrays, styles can be simple/legacy data may come in in a format like

+labels+    table heading, an array
+data+      an array of data to be tabulated, one element for one row
+opts+      optional arguments, :indent => 0, :style => 'fancy'

return a String

[   [a, b, c],  [d, e, [f, g]] .... ]
[ a, b, c] will be used as a single row
and [d, e,[f,g]] will be used as two rows



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# File 'lib/tabulate.rb', line 62

def tabulate(labels, data, opts = { } )
    raise 'Label and data do not have equal columns!' unless labels.size == data.transpose.size

    opts = { :indent => 0, :style => 'fancy'}.merge opts
    indent = opts[:indent]
    style = opts[:style]
    raise "Invalid table style!"    unless  $template.keys.include? style

    data = data.inject([]){|rs, r| rs += r.to_rows }
    data = data.unshift(labels).transpose
    padding = $template[style][:padding] 
    data = data.collect {|c| 
        c.collect {|e|  ' ' * padding + e.to_s + ' ' * padding } 
    }
    widths = data.collect {|c| c.collect {|a| a.width}.max } 
    newdata = []
    data.each_with_index {|c,i|
        newdata << c.collect { |e| e + ' '*(widths[i] - e.width) }
    }
    data = newdata
    data = data.transpose
    data = [ $template[style][:hlframe] + data[0].join($template[style][:fs]) + $template[style][:hrframe] ] + \
        data[1..-1].collect {|l| $template[style][:lframe] + l.join($template[style][:fs]) + $template[style][:rframe] }
    lines = []

    #add top frame
    if !$template[style][:tframe].to_s.empty?
        lines << $template[style][:cross] + widths.collect{|n| $template[style][:tframe] *n }.join($template[style][:cross]) + $template[style][:cross]
    end

    #add title 
    lines << data[0]

    #add title ruler
    if !$template[style][:hs].to_s.empty? and !$template[style][:lframe].to_s.empty?
        lines << $template[style][:cross] + widths.collect{|n| $template[style][:hs] *n }.join($template[style][:cross]) + $template[style][:cross]
    elsif !$template[style][:hs].to_s.empty?
        lines << widths.collect{|n| $template[style][:hs] *n }.join($template[style][:cross])
    end

    #add data
    data[1..-2].each{ |line|
        lines << line
        if !$template[style][:rs].to_s.empty?
            lines << $template[style][:cross] + widths.collect{|n| $template[style][:rs] *n }.join($template[style][:cross]) + $template[style][:cross]
        end
    }

    #add last record and bottom frame
    lines << data[-1]
    if !$template[style][:bframe].to_s.empty?
        lines << $template[style][:cross] + widths.collect{|n| $template[style][:bframe] *n }.join($template[style][:cross]) + $template[style][:cross]
    end

    #add indent
    lines.collect {|l| ' '*indent + l}.join("\n")
end