import * as util from '../util';
|
|
/**
|
* Rule for validating a regular expression pattern.
|
*
|
* @param rule The validation rule.
|
* @param value The value of the field on the source object.
|
* @param source The source object being validated.
|
* @param errors An array of errors that this rule may add
|
* validation errors to.
|
* @param options The validation options.
|
* @param options.messages The validation messages.
|
*/
|
function pattern(rule, value, source, errors, options) {
|
if (rule.pattern) {
|
if (rule.pattern instanceof RegExp) {
|
// if a RegExp instance is passed, reset `lastIndex` in case its `global`
|
// flag is accidentally set to `true`, which in a validation scenario
|
// is not necessary and the result might be misleading
|
rule.pattern.lastIndex = 0;
|
if (!rule.pattern.test(value)) {
|
errors.push(util.format(options.messages.pattern.mismatch, rule.fullField, value, rule.pattern));
|
}
|
} else if (typeof rule.pattern === 'string') {
|
var _pattern = new RegExp(rule.pattern);
|
if (!_pattern.test(value)) {
|
errors.push(util.format(options.messages.pattern.mismatch, rule.fullField, value, rule.pattern));
|
}
|
}
|
}
|
}
|
|
export default pattern;
|
