CMakeLexer Class Reference

Public Types
enum	Token {   TOK_EOF = -1 , TOK_EOL = -2 , TOK_MACRO = -3 , TOK_ENDMACRO = -4 ,   TOK_FUNCTION = -5 , TOK_ENDFUNCTION = -6 , TOK_DOXYGEN_COMMENT = -7 , TOK_SET = -8 ,   TOK_STRING_LITERAL = -100 , TOK_NUMBER_LITERAL = -102 , TOK_IDENTIFIER = -200 }

Public Member Functions
	CMakeLexer (std::istream &is)
int	getToken ()
std::string	getIdentifier () const
int	curLine () const
int	curCol () const
int	getChar ()

Detailed Description

Definition at line 74 of file CMakeDoxygenFilter.cpp.

Member Enumeration Documentation

Token

enum CMakeLexer::Token

Enumerator
TOK_EOF
TOK_EOL
TOK_MACRO
TOK_ENDMACRO
TOK_FUNCTION
TOK_ENDFUNCTION
TOK_DOXYGEN_COMMENT
TOK_SET
TOK_STRING_LITERAL
TOK_NUMBER_LITERAL
TOK_IDENTIFIER

Definition at line 78 of file CMakeDoxygenFilter.cpp.

             {
    TOK_EOF = -1,
    TOK_EOL = -2,
 
    // commands
    TOK_MACRO = -3, TOK_ENDMACRO = -4,
    TOK_FUNCTION = -5, TOK_ENDFUNCTION = -6,
    TOK_DOXYGEN_COMMENT = -7,
    TOK_SET = -8,
    TOK_STRING_LITERAL = -100,
    TOK_NUMBER_LITERAL = -102,
 
    // primary
    TOK_IDENTIFIER = -200
  };

Constructor & Destructor Documentation

CMakeLexer()

CMakeLexer::CMakeLexer ( std::istream & is )

inline

Definition at line 94 of file CMakeDoxygenFilter.cpp.

    : _lastChar(' '), _is(is), _line(1), _col(1)
  {}

Member Function Documentation

curCol()

int CMakeLexer::curCol ( ) const

inline

Definition at line 202 of file CMakeDoxygenFilter.cpp.

  { return _col; }

curLine()

int CMakeLexer::curLine ( ) const

inline

Definition at line 199 of file CMakeDoxygenFilter.cpp.

  { return _line; }

getChar()

int CMakeLexer::getChar ( )

inline

Definition at line 205 of file CMakeDoxygenFilter.cpp.

  {
    int c = _is.get();
    updateLoc(c);
    return c;
  }

getIdentifier()

std::string CMakeLexer::getIdentifier ( ) const

inline

Definition at line 194 of file CMakeDoxygenFilter.cpp.

  {
    return std::string(_identifier.c_str());
  }

getToken()

int CMakeLexer::getToken ( )

inline

Definition at line 98 of file CMakeDoxygenFilter.cpp.

  {
    // skip whitespace
    while (isspace(_lastChar) && _lastChar != '\r' && _lastChar != '\n')
    {
      _lastChar = getChar();
    }
 
    if (isalpha(_lastChar) || _lastChar == '_')
    {
      _identifier = _lastChar;
      while (isalnum(_lastChar = getChar()) || _lastChar == '-' || _lastChar == '_')
      {
        _identifier += _lastChar;
      }
 
      if (_identifier == "set")
        return TOK_SET;
      if (_identifier == "function")
        return TOK_FUNCTION;
      if (_identifier == "macro")
        return TOK_MACRO;
      if (_identifier == "endfunction")
        return TOK_ENDFUNCTION;
      if (_identifier == "endmacro")
        return TOK_ENDMACRO;
      return TOK_IDENTIFIER;
    }
 
    if (isdigit(_lastChar))
    {
      // very lax!! number detection
      _identifier = _lastChar;
      while (isalnum(_lastChar = getChar()) || _lastChar == '.' || _lastChar == ',')
      {
        _identifier += _lastChar;
      }
      return TOK_NUMBER_LITERAL;
    }
 
    if (_lastChar == '#')
    {
      _lastChar = getChar();
      if (_lastChar == '!')
      {
        // found a doxygen comment marker
        _identifier.clear();
 
        _lastChar = getChar();
        while (_lastChar != EOF && _lastChar != '\n' && _lastChar != '\r')
        {
          _identifier += _lastChar;
          _lastChar = getChar();
        }
        return TOK_DOXYGEN_COMMENT;
      }
 
      // skip the comment
      while (_lastChar != EOF && _lastChar != '\n' && _lastChar != '\r')
      {
        _lastChar = getChar();
      }
    }
 
    if (_lastChar == '"')
    {
      _lastChar = getChar();
      _identifier.clear();
      while (_lastChar != EOF && _lastChar != '"')
      {
        _identifier += _lastChar;
        _lastChar = getChar();
      }
 
      // eat the closing "
      _lastChar = getChar();
      return TOK_STRING_LITERAL;
    }
 
    // don't eat the EOF
    if (_lastChar == EOF) return TOK_EOF;
 
    // don't eat the EOL
    if (_lastChar == '\r' || _lastChar == '\n')
    {
       if (_lastChar == '\r') _lastChar = getChar();
       if (_lastChar == '\n') _lastChar = getChar();
       return TOK_EOL;
    }
 
    // return the character as its ascii value
    int thisChar = _lastChar;
    _lastChar = getChar();
    return thisChar;
  }

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The documentation for this class was generated from the following file:

• doc/CMakeDoxygenFilter.cpp