text: /*
   * Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
   *
   * SPDX-License-Identifier: BSD-2-Clause
   */
  
  #pragma once
  
  #include <AK/Result.h>
  #include <LibJS/AST.h>
  #include <LibJS/Runtime/Object.h>
  #include <LibRegex/Regex.h>
  
  namespace JS {
  
  RegExpObject* regexp_create(GlobalObject&, Value pattern, Value flags);
  
  Result<regex::RegexOptions<ECMAScriptFlags>, String> regex_flags_from_string(StringView flags);
  String parse_regex_pattern(StringView pattern, bool unicode);
  
  class RegExpObject : public Object {
      JS_OBJECT(RegExpObject, Object);
  
  public:
      // JS regexps are all 'global' by default as per our definition, but the "global" flag enables "stateful".
      // FIXME: Enable 'BrowserExtended' only if in a browser context.
      static constexpr regex::RegexOptions<ECMAScriptFlags> default_flags { (regex::ECMAScriptFlags)regex::AllFlags::Global | (regex::ECMAScriptFlags)regex::AllFlags::SkipTrimEmptyMatches | regex::ECMAScriptFlags::BrowserExtended };
  
      static RegExpObject* create(GlobalObject&, Regex<ECMA262> regex, String pattern, String flags);
  
      RegExpObject(Regex<ECMA262> regex, String pattern, String flags, Object& prototype);
      virtual void initialize(GlobalObject&) override;
      virtual ~RegExpObject() override;
  
      const String& pattern() const { return m_pattern; }
      const String& flags() const { return m_flags; }
      const Regex<ECMA262>& regex() { return m_regex; }
      const Regex<ECMA262>& regex() const { return m_regex; }
  
  private:
      String m_pattern;
      String m_flags;
      Regex<ECMA262> m_regex;
  };
  
  }
  