Function _parseCustomCharacterClass

tools/PasswordRulesParser.js:313–366

(input, position)

}

function _parseCustomCharacterClass(input, position)
{
    console.assert(position >= 0);
    console.assert(position < input.length);
    console.assert(input[position] === CHARACTER_CLASS_START_SENTINEL);

    let length = input.length;
    ++position;
    if (position >= length) {
        console.error("Found end-of-line instead of character class character");
        return [null, position];
    }

    let initialPosition = position;
    let result = [];
    do {
        let c = input[position];
        if (!_isASCIIPrintableCharacter(c)) {
            ++position;
            continue;
        }

        if (c === "-" && (position - initialPosition) > 0) {
            console.error("Ignoring '-'; a '-' may only appear as the first character in a character class");
            ++position;
            continue;
        }

        result.push(c);
        ++position;
        if (c === CHARACTER_CLASS_END_SENTINEL) {
            break;
        }
    } while (position < length);

    if (position < length && input[position] !== CHARACTER_CLASS_END_SENTINEL || position == length && input[position - 1] == CHARACTER_CLASS_END_SENTINEL) {
        // Fix up result; we over consumed.
        result.pop();
        if (position < length) {
            let nextCharacter = input[position];
            if (!_isASCIIWhitespace(nextCharacter) && nextCharacter !== PROPERTY_VALUE_SEPARATOR && nextCharacter !== PROPERTY_SEPARATOR) {
                console.error(`A ']' inside a character class must be the last character of the class; if a literal ']' is intended, write ']]' at the end. Found unexpected '${nextCharacter}' after closing ']'.`);
            }
        }
        return [result, position];
    }

    if (position < length && input[position] == CHARACTER_CLASS_END_SENTINEL) {
        return [result, position + 1];
    }

    console.error("Found end-of-line instead of end of character class");
    return [null, position];
}

function _parsePasswordRequiredOrAllowedPropertyValue(input, position)
{