I ma working on a JSON schema pattern to exclude numbers and special characters in string, and here is what I have now:
"properties": {
"applicationName": {
"description": "TPG Application Name",
"type": "string",
"pattern": "[^0-9!@#$%^&*()_+\\-=\\[\\]{};':\"\\\\|,.<>\\/?\\s\\n]"
},
This is not working as intended, e.g. it does not allow whitespace.
Input JSON:
{
"applicationName": "TestName",
}
Judging by the "[^0-9!@#$%^&*()_+\\-=\\[\\]{};':\"\\\\|,.<>\\/?\\s\\n]" pattern, you want to match any char but digits, whitespace and special characters (punctuation and symbols). Here, whitespace cannot be matched because \s is present inside the negated character class, and the pattern is matching partially, i.e. it will validate any string that contains a char other than the characters listed in the set. ?a! will match since there is a, e.g.
The simplest solution is to match letters and whitespace, from start till end of string:
"^[A-Za-z\\s]*$"
Details
^ - start of string[A-Za-z\\s]* - 0+ letters or whitespace$ - end of string.