HTML5 pattern allow specific special characters

问题

I have an input text field in my form but i don't know how to filter the input that can all letters and special characters but will not accept numbers.

   <input  pattern="[A-Za-z]{1,25}" maxlength="25" type="text" required="required" style="height:20px"  value="">

It doesn't accept when i enter my middle name "pacaña"

how could i alter the pattern that can accept all characters/special-characters and other special characters like ñ?

回答1:

pattern="[^0-9]*"

• […] matches a single character
• ^ anything except the following (when within [])
• 0-9 digits zero through nine
• * between zero and unlimited times

回答2:

For Not allowing Specific Symbols (dont allow , or .)

<form>
<input type="text" pattern="[^-,]+" title="'-' is not allowed">
<input type="submit">
</form>

来源：https://stackoverflow.com/questions/21282049/html5-pattern-allow-specific-special-characters