38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
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import type { ExecuteRule } from '../interface';
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import { format } from '../util';
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const pattern: ExecuteRule = (rule, value, source, errors, options) => {
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if (rule.pattern) {
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if (rule.pattern instanceof RegExp) {
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// if a RegExp instance is passed, reset `lastIndex` in case its `global`
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// flag is accidentally set to `true`, which in a validation scenario
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// is not necessary and the result might be misleading
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rule.pattern.lastIndex = 0;
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if (!rule.pattern.test(value)) {
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errors.push(
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format(
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options.messages.pattern.mismatch,
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rule.fullField,
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value,
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rule.pattern,
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),
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);
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}
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} else if (typeof rule.pattern === 'string') {
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const _pattern = new RegExp(rule.pattern);
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if (!_pattern.test(value)) {
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errors.push(
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format(
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options.messages.pattern.mismatch,
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rule.fullField,
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value,
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rule.pattern,
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),
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);
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}
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}
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}
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};
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export default pattern;
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