word_wrap
word_wrap(text, line_width: 80, break_sequence: "\\n")Wraps the text into lines no longer than line_width width. This method breaks on the first whitespace character that does not exceed line_width (which is 80 by default).
word_wrap('Once upon a time') # => "Once upon a time" word_wrap('Once upon a time, in a kingdom called Far Far Away, a king fell ill, and finding a successor to the throne turned out to be more trouble than anyone could have imagined...') # => "Once upon a time, in a kingdom called Far Far Away, a king fell ill, and finding\na successor to the throne turned out to be more trouble than anyone could have\nimagined..." word_wrap('Once upon a time', line_width: 8) # => "Once\nupon a\ntime" word_wrap('Once upon a time', line_width: 1) # => "Once\nupon\na\ntime"
You can also specify a custom break_sequence (“n” by default):
word_wrap('Once upon a time', line_width: 1, break_sequence: "\r\n") # => "Once\r\nupon\r\na\r\ntime"
2Notes
Wrapping peculiarities as of 2.x
In Rails 2.x word_wrap has been improved so that it no longer consumes multiple line-breaks or leading & trailing line-breaks.
word_wrap("\
Once upon a time
The End
")
# =>
Once upon a time
The End
However it still doesn't break long words
"supercalifragilisticexpialidocious".length
# => 30
word_wrap("\
Once upon a supercalifragilisticexpialidocious time", 15)
# =>
Once upon a
supercalifragilisticexpialidocious
time
word_wrap with breaking long words
====Code
def breaking_word_wrap(text, *args)
options = args.extract_options!
unless args.blank?
options[:line_width] = args[0] || 80
end
options.reverse_merge!(:line_width => 80)
text = text.split(" ").collect do |word|
word.length > options[:line_width] ? word.gsub(/(.{1,#{options[:line_width]}})/, "\\1 ") : word
end * " "
text.split("
").collect do |line|
line.length > options[:line_width] ? line.gsub(/(.{1,#{options[:line_width]}})(\s+|$)/, "\\1
").strip : line
end * "
"
end
breaking_word_wrap("Once upon a supercalifragilisticexpialidocious time",15)
=> Once upon a\
supercalifragil
isticexpialidoc
ious time
