如何在此正则表达式中限制逗号？

Question

I am using this regex to match URLs:

^((http|https|ftp)://)?(([\w-]+\.)+[^#?\s]+)(.*)?(#[\w\-]+)?$

Now, I want to disable comma in this regex.

Answer 1

In order to disallow commas in your regex, just exclude it using negated character classes:

^((http|https|ftp)://)?(([\w-]+\.)+[^,#?\s]+)([^,]*)?(#[\w-]+)?$
                                    ^^        ^^^^^

See demo

Note how I replaced .* with [^,]* which means match 0 or more characters other than a comma . This way you can further adjust the regex including more characters that you do not want to see inside your URLs.