@discoveryjs/discovery/lib/core/utils/pattern.js

Frontend framework for rapid data (JSON) analysis, shareable serverless reports and dashboards

import { isRegExp } from "./is-type.js";
const stopSymbol = Symbol("stop-match");
function matchWithRx(str, pattern, lastIndex = 0) {
  const offset = lastIndex !== 0 ? str.slice(lastIndex).search(pattern) : str.search(pattern);
  return offset !== -1 ? { offset: lastIndex + offset, length: RegExp.lastMatch.length } : null;
}
;
function matchWithString(str, pattern, lastIndex) {
  const offset = str.indexOf(pattern, lastIndex);
  return offset !== -1 ? { offset, length: pattern.length } : null;
}
;
export function match(text, pattern, ignoreCase = false) {
  if (isRegExp(pattern)) {
    return ignoreCase && !pattern.ignoreCase ? new RegExp(pattern, pattern.flags + "i").test(text) : pattern.test(text);
  }
  if (typeof pattern === "string") {
    return ignoreCase ? String(text).toLowerCase().includes(pattern.toLowerCase()) : String(text).includes(pattern);
  }
  return false;
}
export function matchAll(text, pattern, onText, onMatch, ignoreCase = false) {
  if (!isRegExp(pattern) && typeof pattern !== "string") {
    onText(text, true);
    return;
  }
  let matchText = String(text);
  if (ignoreCase) {
    if (typeof pattern === "string") {
      matchText = matchText.toLowerCase();
      pattern = pattern.toLowerCase();
    } else {
      if (!pattern.ignoreCase) {
        pattern = new RegExp(pattern, pattern.flags + "i");
      }
    }
  }
  let lastIndex = 0;
  let stopMatch = false;
  do {
    const match2 = stopMatch ? null : typeof pattern === "string" ? matchWithString(matchText, pattern, lastIndex) : matchWithRx(matchText, pattern, lastIndex);
    if (match2 === null || match2.length === 0 && match2.offset === lastIndex) {
      onText(lastIndex > 0 ? text.slice(lastIndex) : text, true);
      break;
    }
    if (match2.length !== 0) {
      if (match2.offset !== lastIndex) {
        onText(text.slice(lastIndex, match2.offset), false);
      }
      stopMatch = onMatch(text.substr(match2.offset, match2.length), stopSymbol) === stopSymbol;
    }
    lastIndex = match2.offset + match2.length;
  } while (lastIndex !== text.length);
}