我如何编写正则表达式来检查由等号分隔的文本字符串？

Question

How would i use regular expressions to check for characters within the following string of text:

=== logo ===

I tried to use a regex tester but could come up with the correct expression for i've tried this:

 /^[=]{3}$/

1. I want search within a string find where the text starts with 3 equal signs.
2. Find a string or any other characters within the equal signs.
3. Find 3 more equal signs.. ending the expression.

Thanks in advance.

Answer 1

Try using this regex:

/===[^=]+===/

If you want to capture the text, surround it in parentheses:

/===([^=]+)===/

Here's the fiddle: http://jsfiddle.net/jufXA/

---

If you might have equal signs in your text (but less than 3, obviously) you should instead match everything lazily (which is a tad slower):

/===(.+?)===/

Here's the fiddle: http://jsfiddle.net/jufXA/1/