Ruby？如何忽略剪切和粘贴用户输入中的换行符？

Question

我写了一个需要一些用户输入的小Ruby脚本。我预计用户可能在数据输入期间的某个时间点需要很长时间的输入，并且他们可能从包含换行符的另一个文档中剪切和粘贴。

我一直在玩Highline宝石，很喜欢它。我怀疑我只是缺少文档中的东西，但有没有办法获得可变长度多行输入？

编辑：问题是换行符终止输入，并且换行符后面的字符最终成为下一个问题的输入。

Answer 1

下面是笔者在他的例子使用：（从高架-1.5.0 /例）

#!/usr/local/bin/ruby -w 

# asking_for_arrays.rb 
# 
# Created by James Edward Gray II on 2005-07-05. 
# Copyright 2005 Gray Productions. All rights reserved. 

require "rubygems" 
require "highline/import" 
require "pp" 

grades = ask("Enter test scores (or a blank line to quit):", 
       lambda { |ans| ans =~ /^-?\d+$/ ? Integer(ans) : ans}) do |q| 
    q.gather = "" 
end 

say("Grades:") 
pp grades 

上HighLine::Question#gather通用文档（从highline-1.5.0/lib/highline/question.rb）

# When set, the user will be prompted for multiple answers which will 
# be collected into an Array or Hash and returned as the final answer. 
# 
# You can set _gather_ to an Integer to have an Array of exactly that 
# many answers collected, or a String/Regexp to match an end input which 
# will not be returned in the Array. 
# 
# Optionally _gather_ can be set to a Hash. In this case, the question 
# will be asked once for each key and the answers will be returned in a 
# Hash, mapped by key. The <tt>@key</tt> variable is set before each 
# question is evaluated, so you can use it in your question. 
# 
attr_accessor :gather 

这些似乎是你的m ain选项w /在图书馆。别的，你必须自己做。

Answer 2

岂不是这样的：

input.gsub!('\r\n', '')