Ruby RTF宝石中文本的RTF颜色

Question

我有这段代码来创建RTF文档，但我找不到如何将文本着色，有人能帮我吗？

# encoding: utf-8
#!/usr/bin/env ruby
$LOAD_PATH.unshift(File.dirname(__FILE__)+"/../lib/")
require 'rtf'
include RTF
colour = Colour.new(150, 150, 150)
style = CharacterStyle.new
style.bold      = true
style.font_size = 28
style.foreground = colour
document = RTF::Document.new(RTF::Font.new(RTF::Font::ROMAN, 'Times New Roman'))
document.paragraph(style) do |p|
   p << "And there you have it."
end

File.open('my_document.rtf', 'w') {|file| file.write(document.to_rtf)}

给出

C:/Ruby193/lib/ruby/gems/1.9.1/gems/rtf-0.3.3/lib/rtf/style.rb:124:in `prefix': undefined method `index' for nil:NilClass (NoMethodError)

Answer 1

查看RDoc中的最后一个示例-http://ruby-rtf.rubyforge.org/docs/index.html.

您已经创建了CharacterStyle并将其应用于段落，这是不允许的。您需要将CharacterStyle应用于文本。

将您的输出更改为：

document.paragraph() do |p|
    p.apply(style) do |t|
        t << "And there you have it."
    end
end