Sha256: be0271cd936fd8880aa93d0a18aa01a2fef2be6878ec85772e8d46d64d6ea634
Contents?: true
Size: 1.81 KB
Versions: 10
Compression:
Stored size: 1.81 KB
Contents
class String
# Word wrap a string, not exceeding max width.
# This pads the end of each line with a space,
# or a hyphen if there was a word break. The margin
# determines how much play to give before forcing a
# word break.
#
# Note that this method reduces paragraphical
# whitespace down to a single space. If someone
# sees to fix this, then more power to you!
def word_wrap(max_width=nil, margin=6)
max_width ||= 80
max_width -= 1
min_width = max_width - margin
blocks = []; scan(/(.*)(\n\s+\n|\Z)/m){ blocks << $~ }
complete = ''
blocks.each{ |block|
str = ''; line = ''
body = block[1].gsub(/\s+/, ' ')
padding = block[2].to_s
words = body.split(/\s+/)
i = 0
words.each { |word|
line << word
while line.length > max_width
clean_break = line.index(/\s\S*?$/)
clean_break = 0 unless clean_break
if clean_break < min_width
remaining = line[max_width..-1]
str << line.slice(0,max_width)
str << '-' if /^[a-zA-Z0-9]/ =~ remaining
str << "\n"
line = line[max_width..-1]
else
str << line.slice(0,clean_break)
str << " \n"
line = line[(clean_break + 1)..-1]
end
end
line << ' '
}
str << line.chomp(' ')
complete << str << padding
}
complete << "\n"
end
end
# --- dev test ---
if $0 == __FILE__
s = "PackMule is a rake front-end thisisaverylongwordtoseeifgetsdivededornot"
s << " tool that makes it easy to 'pack-out' your Ruby packages. PackMule can run tests, build"
s << " .tgz and .zip packages, create gem packages, perform a manual"
s << " install, generate rdocs and publish them, and CVS support"
s << " might be added soon."
puts s.word_wrap(60)
end
Version data entries
10 entries across 10 versions & 1 rubygems