I have some problem with replace string in Ruby.
在Ruby中替换字符串有一些问题。
My Original string : What the human does is not like what animal does.
我最初的想法:人类所做的和动物不一样。
I want to replace to: ==What== the human does is not like ==what== animal does.
我想替换成:== =人类所做的不像=动物所做的。
I face the problem of case sensitive when using gsub. (eg. What , what) I want to keep original text.
我在使用gsub时遇到了区分大小写的问题。(如。我想保留原文。
any solution?
有解决方案吗?
4 个解决方案
#1
20
If I understood you correctly this is what you want to do:
如果我理解正确，这就是你想做的:
puts "What the human does is not like what animal does.".gsub(/(what)/i, '==\1==')
which will output
将输出
==What== the human does is not like ==what== animal does.
如:人所做的事不象动物所做的事。
#2
3
The important thing to take account of in all 3 answers so far, is the use of the "i" modifier on the regular expression. This is the shorthand way to specify the use of the Regexp::IGNORECASE option.
到目前为止，在所有的3个答案中，最重要的是在正则表达式中使用“i”修饰符。这是指定Regexp: IGNORECASE选项使用的简写方法。
A useful Ruby Regexp tutorial is here and the class is documented here
这里有一个非常有用的Ruby Regexp教程，这个类在这里有文档说明
#3
2
Use the block form of gsub.
使用gsub的块形式。
"What the human does is not like what animal does.".gsub(/(what)/i) { |s| "==#{s}==" }
=> "==What== the human does is not like ==what== animal does."
#4
2
another version without brackets () in regex,
regex中没有括号()的另一个版本，
puts "What the human does is not like what animal does.".gsub(/what/i,'==\0==')
==What== the human does is not like ==what== animal does.
如:人所做的事不象动物所做的事。
#1
20
If I understood you correctly this is what you want to do:
如果我理解正确，这就是你想做的:
puts "What the human does is not like what animal does.".gsub(/(what)/i, '==\1==')
which will output
将输出
==What== the human does is not like ==what== animal does.
如:人所做的事不象动物所做的事。
#2
3
The important thing to take account of in all 3 answers so far, is the use of the "i" modifier on the regular expression. This is the shorthand way to specify the use of the Regexp::IGNORECASE option.
到目前为止，在所有的3个答案中，最重要的是在正则表达式中使用“i”修饰符。这是指定Regexp: IGNORECASE选项使用的简写方法。
A useful Ruby Regexp tutorial is here and the class is documented here
这里有一个非常有用的Ruby Regexp教程，这个类在这里有文档说明
#3
2
Use the block form of gsub.
使用gsub的块形式。
"What the human does is not like what animal does.".gsub(/(what)/i) { |s| "==#{s}==" }
=> "==What== the human does is not like ==what== animal does."
#4
2
another version without brackets () in regex,
regex中没有括号()的另一个版本，
puts "What the human does is not like what animal does.".gsub(/what/i,'==\0==')
==What== the human does is not like ==what== animal does.
如:人所做的事不象动物所做的事。