Method toRegExpSource

deps/minimatch/index.js:869–946

(allowDot)

      // is ^(?!\.), we can just prepend (?!\.) to the pattern (either root
      // or start or whatever) and prepend ^ or / at the Regexp construction.
      toRegExpSource(allowDot) {
        const dot = allowDot ?? !!this.#options.dot;
        if (this.#root === this) {
          this.#flatten();
          this.#fillNegs();
        }
        if (!isExtglobAST(this)) {
          const noEmpty = this.isStart() && this.isEnd() && !this.#parts.some((s) => typeof s !== "string");
          const src = this.#parts.map((p) => {
            const [re, _, hasMagic, uflag] = typeof p === "string" ? _a.#parseGlob(p, this.#hasMagic, noEmpty) : p.toRegExpSource(allowDot);
            this.#hasMagic = this.#hasMagic || hasMagic;
            this.#uflag = this.#uflag || uflag;
            return re;
          }).join("");
          let start2 = "";
          if (this.isStart()) {
            if (typeof this.#parts[0] === "string") {
              const dotTravAllowed = this.#parts.length === 1 && justDots.has(this.#parts[0]);
              if (!dotTravAllowed) {
                const aps = addPatternStart;
                const needNoTrav = (
                  // dots are allowed, and the pattern starts with [ or .
                  dot && aps.has(src.charAt(0)) || // the pattern starts with \., and then [ or .
                  src.startsWith("\\.") && aps.has(src.charAt(2)) || // the pattern starts with \.\., and then [ or .
                  src.startsWith("\\.\\.") && aps.has(src.charAt(4))
                );
                const needNoDot = !dot && !allowDot && aps.has(src.charAt(0));
                start2 = needNoTrav ? startNoTraversal : needNoDot ? startNoDot : "";
              }
            }
          }
          let end = "";
          if (this.isEnd() && this.#root.#filledNegs && this.#parent?.type === "!") {
            end = "(?:$|\\/)";
          }
          const final2 = start2 + src + end;
          return [
            final2,
            (0, unescape_js_12.unescape)(src),
            this.#hasMagic = !!this.#hasMagic,
            this.#uflag
          ];
        }
        const repeated = this.type === "*" || this.type === "+";
        const start = this.type === "!" ? "(?:(?!(?:" : "(?:";
        let body = this.#partsToRegExp(dot);
        if (this.isStart() && this.isEnd() && !body && this.type !== "!") {
          const s = this.toString();
          const me = this;
          me.#parts = [s];
          me.type = null;
          me.#hasMagic = void 0;
          return [s, (0, unescape_js_12.unescape)(this.toString()), false, false];
        }
        let bodyDotAllowed = !repeated || allowDot || dot || !startNoDot ? "" : this.#partsToRegExp(true);
        if (bodyDotAllowed === body) {
          bodyDotAllowed = "";
        }