/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying

   file LICENSE.rst or https://cmake.org/licensing for details.  */

#pragma once

#include "cmConfigure.h" // IWYU pragma: keep

#include <cstddef>

#include <string>

#include <vector>

struct cmGeneratorExpressionToken

{

  cmGeneratorExpressionToken(unsigned type, char const* c, size_t l)

    : TokenType(type)

    , Content(c)

    , Length(l)

  {

  }

  enum

  {

    Text,

    BeginExpression,

    EndExpression,

    ColonSeparator,

    CommaSeparator

  };

  unsigned TokenType;

  char const* Content;

  size_t Length;

};

/** \class cmGeneratorExpressionLexer

 *

 */

class cmGeneratorExpressionLexer

{

public:

  cmGeneratorExpressionLexer();

  std::vector<cmGeneratorExpressionToken> Tokenize(std::string const& input);

  bool GetSawGeneratorExpression() const

  {

    return this->SawGeneratorExpression;

  }

private:

  bool SawBeginExpression = false;

  bool SawGeneratorExpression = false;

};