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Contents
class String
# Truncates a given +text+ after a given <tt>length</tt> if +text+ is longer than <tt>length</tt>:
#
# 'Once upon a time in a world far far away'.truncate(27)
# # => "Once upon a time in a wo..."
#
# Pass a string or regexp <tt>:separator</tt> to truncate +text+ at a natural break:
#
# 'Once upon a time in a world far far away'.truncate(27, separator: ' ')
# # => "Once upon a time in a..."
#
# 'Once upon a time in a world far far away'.truncate(27, separator: /\s/)
# # => "Once upon a time in a..."
#
# The last characters will be replaced with the <tt>:omission</tt> string (defaults to "...")
# for a total length not exceeding <tt>length</tt>:
#
# 'And they found that many people were sleeping better.'.truncate(25, omission: '... (continued)')
# # => "And they f... (continued)"
def truncate(truncate_at, options = {})
return dup unless length > truncate_at
omission = options[:omission] || '...'
length_with_room_for_omission = truncate_at - omission.length
stop = \
if options[:separator]
rindex(options[:separator], length_with_room_for_omission) || length_with_room_for_omission
else
length_with_room_for_omission
end
"#{self[0, stop]}#{omission}"
end
# Base taken from: https://www.ruby-forum.com/topic/57805
def wordwrap(length = 80)
return [] if length == 0
self.gsub!(/(\S{#{length}})(?=\S)/, '\1 ')
self.scan(/.{1,#{length}}(?:\s+|$)/)
end
# Base taken from: http://stackoverflow.com/a/12202205/1945875
def middle_truncate(length = 20, options = {})
omission = options[:omission] || '...'
return self if self.length <= length + omission.length
return self[0..length] if length < omission.length
len = (length - omission.length) / 2
s_len = len - length % 2
self[0..s_len] + omission + self[self.length - len..self.length]
end
end
Version data entries
864 entries across 864 versions & 6 rubygems