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Contents
# encoding: utf-8
# Numeric
class Numeric
# return is digit html table
#
# ==== Examples
#
# 255 to 256 case
#
# Numeric.to_digit_html_table(255, 256)
#
# result
#
# <table>
# <tr>
# <th>10digit</th>
# <th>2digit</th>
# <th>8digit</th>
# <th>16digit</th>
# </tr>
# <tr>
# <td>255</td>
# <td>0000000011111111</td>
# <td>377</td>
# <td>00ff</td>
# </tr>
# <tr>
# <td>256</td>
# <td>0000000100000000</td>
# <td>400</td>
# <td>0100</td>
# </tr>
# </table>
#
def self.to_digit_html_table(from = 1, to = 10)
ret = []
binary_size = to.to_s(2).size - 1
binary_pad = (binary_size / 8 + 1) * 8
oct_size = to.to_s(8).size
hex_size = to.to_s(16).size - 1
hex_pad = (hex_size / 4 + 1) * 4
ret << "<table>\n <tr>\n <th>10digit</th>\n <th>2digit</th>\n <th>8digit</th>\n <th>16digit</th>\n </tr>"
(from..to).each { |i|ret << " <tr>\n <td>#{i}</td>\n <td>#{i.to_s(2).rjust(binary_pad, '0')}</td>\n <td>#{i.to_s(8).rjust(oct_size, '0')}</td>\n <td>#{i.to_s(16).rjust(hex_pad, '0')}</td>\n </tr>" }
ret.join("\n") + "\n</table>\n"
end
end
Version data entries
55 entries across 55 versions & 1 rubygems