正则表达式在Java中查找带连字符的文本

Question

I need find out only hyphenated text like this, i made some code for this its working but it has some problem.

Eg:-(PRX)-is a non-steroidal surface-to-volume-ratio-due-to-the characterized-by a poorly water solubility.(Key)-words " Only non-steroidal is valid only."

1. non-steroidal--->valid (only this type is valid rest all should be neglected
2. surface-to-volume-ratio-due-to-the---> not valid
3. (Key)-words:----> not valid

only one hyphen is allowed. if there are 2 hyphen in a word then it should be neglected.

my regex is--:

(((\b|,|'|.!|)(([a-zA-Z])+){0}-{1}(([a-zA-Z]+))(\b|,|'|.!)))

as in this fig: red circle are showing that must be neglected.

Answer 1

If you want to get words with only one hyphen you can use this regex:

(?<!-)\b(\w+\-\w+)\b(?!-)

Working demo

But if you want to get hyphened words (with multiple hyphens) you can use:

((?:\w+\-)+\w+)

Working demo