所有字母小写，除了在一个句子

Question

的第一个字我有一个字符串

s = "Test TEst TEST. Test. TEST. TEST. Test test test." 

我需要的结果是这样的

s = "Test test test. Test. Test. Test. Test test test." 

我怎么能在红宝石做到这一点？

thx。

Answer 1

s.gsub(/\w[^.]*/, &:capitalize) 
# => "Test test test. Test. Test. Test. Test test test." 

Answer 2

s = "Test TEst TEST. Test. TEST. TEST. Test test test." 
p s.split('. ').map(&:capitalize).join('. ') 
#=> "Test test test. Test. Test. Test. Test test test."