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Size: 1.65 KB
Versions: 64
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Stored size: 1.65 KB
Contents
module GLI
module Commands
module HelpModules
# Handles wrapping text
class TextWrapper
# Create a text_wrapper wrapping at the given width,
# and indent.
def initialize(width,indent)
@width = width
@indent = indent
end
# Return a wrapped version of text, assuming that the first line has already been
# indented by @indent characters. Resulting text does NOT have a newline in it.
def wrap(text)
return text if text.nil?
wrapped_text = ''
current_graf = ''
paragraphs = text.split(/\n\n+/)
paragraphs.each do |graf|
current_line = ''
current_line_length = @indent
words = graf.split(/\s+/)
current_line = words.shift || ''
current_line_length += current_line.length
words.each do |word|
if current_line_length + word.length + 1 > @width
current_graf << current_line << "\n"
current_line = ''
current_line << ' ' * @indent << word
current_line_length = @indent + word.length
else
if current_line == ''
current_line << word
else
current_line << ' ' << word
end
current_line_length += (word.length + 1)
end
end
current_graf << current_line
wrapped_text << current_graf << "\n\n" << ' ' * @indent
current_graf = ''
end
wrapped_text.gsub(/[\n\s]*\Z/,'')
end
end
end
end
end
Version data entries
64 entries across 64 versions & 2 rubygems