class BBS::FrameBuffer::Wrap

The word-wrap of FrameBuffer.wrap_ansi: it reads the text a token at a time (an escape sequence, a word or a run of blanks) and breaks the line before the word that would not fit, starting the next line with the style that was active.

Constants

TOKEN: One token: a CSI sequence (first group), a word (second) or a run of whitespace (third).

Public Class Methods

new (width)

Source

# File lib/bbs/frame_buffer/wrap.rb, line 15
def initialize(width)
  @width = width
end

Wraps to lines of width visible characters.

Public Instance Methods

lines (text)

Source

# File lib/bbs/frame_buffer/wrap.rb, line 21
def lines(text)
  @lines   = []
  @line    = +''
  @visible = 0
  @sgr     = nil
  text.scan(TOKEN) { |seq, word, blank| seq ? escape(seq) : add(word || blank, blank) }
  @lines << @line.rstrip unless @line.empty?
  @lines.empty? ? [''] : @lines
end

The lines of text, an Array of Strings with trailing spaces removed; [''] for no text.