正则表达式 - 分隔符之间的所有子串

Question

简单正则表达式的小问题...我有一个输入，需要2个单词之间的文本。输入 例子：

Blah Blah 
Word1 
New line text I need 
Another important sentence for me 
Word2 
Blah blah 
Word1 
Line of important text 
Word2 
The end 

我需要所有的字1和Word2..Any提示之间的文本？

Answer 1

可以使用前瞻，看看隐藏的正则表达式的特点：

str = <<HERE 
Blah Blah 
Word1 
New line text I need 
Another important sentence for me 
Word2 
Blah blah 
Word1 
Line of important text 
Word2 
The end 
HERE 

str.scan(/(?<=Word1).+?(?=Word2)/m) # => ["\nNew line text I need\nAnother important sentence for me\n", "\nLine of important text\n"] 

Answer 2

假设文本被馈送作为键盘输入

while gets() 
    @found=true if line =~ /Word1/ 
    next unless @found 
    puts line 
    @found=false if line =~ /Word2/ 
end 

将打印字1字2和（含）之间的所有行。