Regex: Match double single quote inside string

问题

I want a regex that will match for example 'panic can''t happen' as panic can''t happen. Double single quotes are just allowed if they're next to each other, 'panic can't' happen' sgould be divided into two strings, panic can and happen.

I got \'[^\']*[\'\']?[^\']\' so far but it won't work as expected.

Thanks!

回答1:

You can try the following:

'(?:[^']+|'')+'

• ': Matches a literal '.
• [^']+: Matches one or more characters which are not '.
• '': Matches double ''.
• (?:[^']+|'')+: Matches one or more occurrences of the preceding two patterns.
• ' matches the closing '.

Regex101 Demo

回答2:

Well using this pattern will capture double single quotes or split when they are not next to each other:

PATTERN

'((?:''|[^']+)+)'

INPUT

'panic can't' happen'

OUTPUT

Match 1: 'panic can' 
Group 1: panic can

And:

Match 2: ' happen'
Group 1:  happen

2 case

INPUT

'panic can''t happen'

OUTPUT

Match 1: 'panic can''t happen' 
Group 1: panic can''t happen

来源：https://stackoverflow.com/questions/20263853/regex-match-double-single-quote-inside-string