如何编写正则表达式以匹配标题案例句子(例如：我喜欢工作)

发布时间：2020-12-14 06:26:50 所属栏目：百科来源：网络整理

导读：我需要找到一个匹配每个句子的正则表达式,无论它是否跟随标题大小写(句子的每个单词的第一个字母应该是大写的,并且单词也可以包含特殊字符). regex101 ([A-Z][^s]*) Debuggex Demo 描述 1st Capturing group ([A-Z][^s]*) [A-Z] match a single character

我需要找到一个匹配每个句子的正则表达式,无论它是否跟随标题大小写(句子的每个单词的第一个字母应该是大写的,并且单词也可以包含特殊字符).

regex101

([A-Z][^s]*)

Debuggex Demo

描述

1st Capturing group ([A-Z][^s]*)  
    [A-Z] match a single character present in the list below  
        A-Z a single character in the range between A and Z (case sensitive)
    [^s]* match a single character not present in the list below
        Quantifier: * Between zero and unlimited times,as many times as possible,giving back as needed [greedy]
        s match any white space character [rntf ]
g modifier: global. All matches (don't return on first match)

Full Sentence

^(?:[A-Z][^s]*s?)+$

Debuggex Demo

描述

^ assert position at start of the string
(?:[A-Z][^s]*s?)+ Non-capturing group
    Quantifier: + Between one and unlimited times,giving back as needed [greedy]
    [A-Z] match a single character present in the list below
        A-Z a single character in the range between A and Z (case sensitive)
    [^s]* match a single character not present in the list below
        Quantifier: * Between zero and unlimited times,giving back as needed [greedy]
        s match any white space character [rntf ]
    s? match any white space character [rntf ]
        Quantifier: ? Between zero and one time,giving back as needed [greedy]
$assert position at end of the string

（编辑：李大同）

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