Html5 Pattern Exclude Words

I want to exclude some unwanted words in an input field of textarea using the pattern function in HTML5. so I want exclude word inside a text like 'viagra' and 'cialis' How can I c

Solution 1:

You can use this regex :

^((?!viagra)(?!cialis).)*$

As explained in the post : Regular expression to match a line that doesn't contain a word?

Solution 2:

you can use it

<inputtype="text" pattern="[^(^viagra$|^cialis$)]">