prawnpdf/prawn

# frozen_string_literal: true

require 'prawn/manual_builder'

Prawn::ManualBuilder::Chapter.new do
  title 'Line Wrapping'

  text do
    prose <<~TEXT
      Line wrapping happens on white space or hyphens. Soft hyphens can be used
      to indicate where words can be hyphenated. Non-breaking spaces can be
      used to display space without allowing for a break.

      For writing styles that do not make use of spaces, the zero width space
      serves to mark word boundaries. Zero width spaces are available only with
      external fonts.
    TEXT
  end

  example new_page: true do
    text "Hard hyphens:\n" \
      'Slip-sliding away, slip sliding awaaaay. You know the ' \
      "nearer your destination the more you're slip-sliding away."
    move_down 20

    shy = Prawn::Text::SHY
    text "Soft hyphens:\n" \
      "Slip slid#{shy}ing away, slip slid#{shy}ing away. You know the " \
      "nearer your destinat#{shy}ion the more you're slip slid#{shy}ing away."
    move_down 20

    nbsp = Prawn::Text::NBSP
    text "Non-breaking spaces:\n" \
      "Slip#{nbsp}sliding away, slip#{nbsp}sliding awaaaay. You know the " \
      "nearer your destination the more you're slip#{nbsp}sliding away."
    move_down 20

    font_families.update('Jigmo' => { normal: "#{Prawn::ManualBuilder::DATADIR}/fonts/Jigmo.ttf" })
    font('Jigmo', size: 16) do
      text "No word boundaries:\n更可怕的是、同质化竞争对手可以按照URL中后面这个ID来遍历" \
        '您的DB中的内容、写个小爬虫把你的页面上的关键信息顺次爬下来也不是什么难事、这样的话、' \
        '你就非常被动了。更可怕的是，同质化竞争对手可以按照URL中后面这个ID来遍历您的DB中的内容、' \
        '写个小爬虫把你的页面上的关键信息顺次爬下来也不是什么难事、这样的话、你就非常被动了。'
      move_down 20

      zwsp = Prawn::Text::ZWSP
      text "Invisible word boundaries:\n更#{zwsp}可怕的#{zwsp}是、#{zwsp}同质化#{zwsp}竞争" \
        "#{zwsp}对#{zwsp}手#{zwsp}可以#{zwsp}按照#{zwsp}URL#{zwsp}中#{zwsp}后面#{zwsp}这个" \
        "#{zwsp}ID#{zwsp}来#{zwsp}遍历#{zwsp}您的#{zwsp}DB#{zwsp}中的#{zwsp}内容、#{zwsp}写个" \
        "#{zwsp}小爬虫#{zwsp}把#{zwsp}你的#{zwsp}页面#{zwsp}上的#{zwsp}关#{zwsp}键#{zwsp}信" \
        "#{zwsp}息顺#{zwsp}次#{zwsp}爬#{zwsp}下来#{zwsp}也#{zwsp}不是#{zwsp}什么#{zwsp}难事、" \
        "#{zwsp}这样的话，#{zwsp}你#{zwsp}就#{zwsp}非常#{zwsp}被动了。#{zwsp}更#{zwsp}可怕的" \
        "#{zwsp}是、#{zwsp}同质化#{zwsp}竞争#{zwsp}对#{zwsp}手#{zwsp}可以#{zwsp}按照#{zwsp}URL" \
        "#{zwsp}中#{zwsp}后面#{zwsp}这个#{zwsp}ID#{zwsp}来#{zwsp}遍历#{zwsp}您的#{zwsp}DB#{zwsp}" \
        "中的#{zwsp}内容、#{zwsp}写个#{zwsp}小爬虫#{zwsp}把#{zwsp}你的#{zwsp}页面#{zwsp}上的" \
        "#{zwsp}关#{zwsp}键#{zwsp}信#{zwsp}息顺#{zwsp}次#{zwsp}爬#{zwsp}下来#{zwsp}也#{zwsp}不是" \
        "#{zwsp}什么#{zwsp}难事、#{zwsp}这样的话、#{zwsp}你#{zwsp}就#{zwsp}非常#{zwsp}被动了。"
    end
  end
end