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Contents
# encoding: utf-8
require 'open_classes/string/ascii1_other2_size'
# String
class String
# Justify string using separator
#
# before justify
#
# print 'hoge' # => 'hoge'
# print 'hoge' * 2 # => 'hogehoge'
# print 'hoge' + 'hige' # => 'hogehige'
#
# after justify
#
# print 'hoge' # => 'hoge'
# print 'hoge' * 2 # => 'hogehoge'
# print 'hoge' + 'hige' # => 'hogehige'
#
def justify_char(separator = '|', position = :left)
return self if empty?
return self unless include? separator
max_sizes = get_column_maxes(separator)
return self if max_sizes.nil?
justify_lines max_sizes, position, separator
end
private
def get_column_maxes(separator)
max_sizes = []
each_line do |line|
columns = get_columuns(line, separator)
max_sizes = get_column_max(columns, max_sizes)
end
max_sizes
end
def justify_lines(max_sizes, position, separator)
ret = []
each_line do |line|
columns = get_columuns(line, separator)
line_ret = []
columns.each_with_index do |column, cnt|
diff = column.ascii1_other2_size - column.size
line_ret << justified_column(column, max_sizes[cnt], diff, position)
end
ret << line_ret.join(separator).gsub(/ +$/m, '')
end
ret.join
end
def justified_column(column, max_size, diff, position)
pos = max_size - diff
case position
when :left
column.ljust(pos)
when :right
column.rjust(pos)
when :center
column.center(pos)
end
end
def get_columuns(line, separator)
line.split(separator)
end
def get_column_max(columns, max_sizes)
columns.each_with_index do |column, index|
current_size = column.ascii1_other2_size
if max_sizes[index].nil?
max_sizes << current_size
next
end
max_sizes[index] = current_size if current_size > max_sizes[index]
end
max_sizes
end
end
Version data entries
30 entries across 30 versions & 1 rubygems