Module: ReVIEW::TextUtils
- Included in:
- Book::BookUnit, Builder, HTMLBuilder, IDGXMLBuilder, LATEXBuilder, MARKDOWNBuilder, PLAINTEXTBuilder, Preprocessor::Repository, RSTBuilder
- Defined in:
- lib/review/textutils.rb
Instance Method Summary collapse
- #add_space?(line1, line2, lang, lazy = nil) ⇒ Boolean
- #detab(str, ts = 8) ⇒ Object
- #join_lines_to_paragraph(lines) ⇒ Object
- #split_paragraph(lines) ⇒ Object
Instance Method Details
#add_space?(line1, line2, lang, lazy = nil) ⇒ Boolean
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# File 'lib/review/textutils.rb', line 47 def add_space?(line1, line2, lang, lazy = nil) # https://drafts.csswg.org/css-text-3/#line-break-transform tail = line1[-1] head = line2[0] if tail.nil? || head.nil? return nil end space = true # rule 2 if %i[F W H].include?(Unicode::Eaw.property(tail)) && %i[F W H].include?(Unicode::Eaw.property(head)) && tail !~ /\p{Hangul}/ && head !~ /\p{Hangul}/ space = nil end if %w[ja zh zh_CN zh_TW yi].include?(lang) # rule 3 if (%i[F W H].include?(Unicode::Eaw.property(tail)) && tail !~ /\p{Hangul}/ && (head =~ /\p{P}/ || head =~ /\p{S}/ || Unicode::Eaw.property(head) == :A)) || (%i[F W H].include?(Unicode::Eaw.property(head)) && head !~ /\p{Hangul}/ && (tail =~ /\p{P}/ || head =~ /\p{S}/ || Unicode::Eaw.property(tail) == :A)) space = nil end # lazy than rule 3, but it looks better if lazy if (%i[F W H].include?(Unicode::Eaw.property(tail)) && tail !~ /\p{Hangul}/) || (%i[F W H].include?(Unicode::Eaw.property(head)) && head !~ /\p{Hangul}/) space = nil end end end space end |
#detab(str, ts = 8) ⇒ Object
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# File 'lib/review/textutils.rb', line 14 def detab(str, ts = 8) add = 0 len = nil str.gsub("\t") do len = ts - (($`.size + add) % ts) add += len - 1 ' ' * len end end |
#join_lines_to_paragraph(lines) ⇒ Object
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# File 'lib/review/textutils.rb', line 87 def join_lines_to_paragraph(lines) unless @book.config['join_lines_by_lang'] return lines.join end lazy = true lang = 'ja' 0.upto(lines.size - 2) do |n| if add_space?(lines[n], lines[n + 1], lang, lazy) lines[n] += ' ' end end lines.join end |
#split_paragraph(lines) ⇒ Object
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# File 'lib/review/textutils.rb', line 24 def split_paragraph(lines) pre = pre_paragraph post = post_paragraph trimmed_lines = trim_lines(lines) blocked_lines = [[]] trimmed_lines.each do |element| if element.empty? blocked_lines << [] if blocked_lines.last != [] else blocked_lines.last << element end end blocked_lines.map! { |i| join_lines_to_paragraph(i) } if pre && post blocked_lines.map! { |i| pre + i + post } end blocked_lines end |