All files / json-patch util.ts

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import type {CreateRegexMatcher} from '.';
import type {SlateTextNode, SlateElementNode} from './types';
 
const {isArray} = Array;
 
export const isTextNode = (node: unknown): node is SlateTextNode =>
  !!node && typeof node === 'object' && typeof (node as SlateTextNode).text === 'string';
 
export const isElementNode = (node: unknown): node is SlateElementNode =>
  !!node && typeof node === 'object' && isArray((node as SlateElementNode).children);
 
export const createMatcherDefault: CreateRegexMatcher = (pattern, ignoreCase) => {
  const reg = new RegExp(pattern, ignoreCase ? 'i' : undefined);
  return (value) => reg.test(value);
};