class PyTeXError(Exception):
    pass


class PyTeXFormattingError(PyTeXError):
    pass


class PyTeXBuildError(PyTeXError):
    pass


class PyTeXMacroError(PyTeXError):
    pass


class PyTeXInvalidMacroUsageError(PyTeXMacroError):
    pass


class PyTeXInvalidBeginMacroCodeUsageError(PyTeXInvalidMacroUsageError):
    pass


class PyTeXInvalidEndMacroCodeUsageError(PyTeXInvalidMacroUsageError):
    pass