extern Atomic
	A_RBRA,
	A_RCET,
	A_FBRA,
	A_FCET,
	A_QBRA,
	A_QCET,  A_FBRACET, A_QBRACET,
	A_POINT,
	A_COMMA,
	A_SECO,
	A_QUOTE,
	A_RQUOTE,
	A_DQUOTE;

extern Atom OP_FX, OP_FY, OP_XF, OP_YF, OP_XFX, OP_XFY, OP_YFX,
       OP_PREFIX,OP_INFIX,OP_POSTFIX;


extern Atom OPR_MINUS, OPR_PLUS, OPR_MLT, OPR_DIV, OPR_CARET, OPR_POW,
	OPR_CLNMIN, OPR_COMMA, OPR_SECO, OPR_EQSIGN, OPR_COLON, OPR_USCORE,
	OPR_RARROW, OPR_EQEQSIGN, OPR_DOLLAR;

extern Atom OPR_PARAMETER, OPR_PARTICLE, OPR_FIELD, OPR_GROUP, OPR_REPRES;
extern Atom OPR_READ,OPR_EDIT,OPR_FUNCTION;
extern Atom OPR_SCALAR, OPR_VECTOR, OPR_SPINOR, OPR_TENSOR, OPR_SPINOR3, OPR_MASS, OPR_WIDTH;
extern Atom OPR_LET, OPR_LTERM, OPR_WHERE, OPR_MODEL, OPR_CLEAR, OPR_SPECIAL;
extern Atom A_COLOR, A_COLOR_LAMBDA, A_COLOR_F, A_LEFT, A_RIGHT, A_GAUGE,
         A_GHOST, A_END, A_S_COLOR, A_COLOR_EPS, A_BRST_TRANSF, A_BRSTI_TRANSF,
		A_MOMENT_S, A_DERIV_S, A_MOMENT_E, A_EPS_V, A_COLOR_D, A_DFDFC;
extern Atom PROP_TYPE,PROP_INDEX, OPR_WILD, OPR_CLASS;
extern Atom A_I,A_LORENTZ,A_MTERM,A_ALG1,A_ALG2,A_MOMENT, A_SQRT, A_COS, A_SIN,
	A_DELTA, A_GAMMA, A_GAMMA5, A_GAMMAP, A_GAMMAM, A_SQRT2, A_CC, A_GRASS, 
	A_ANTI, A_ANTI2, A_GLUON, A_TEXLENGTH, A_CURT, A_GG, A_FANUM,
        A_VEV, A_ORTH_MATR, A_HERM_MATR, A_CHNAME, A_TEXNAME, A_EM_CHARGE, A_CSPINOR,
        A_SET_ANGLE, A_TRIG_FU, A_INFINITESIMAL, A_DUMMY_PRM, A_KEEP_LETS;
extern Atom OPR_ALIAS, OPR_USE, OPR_COEFF, OPR_KEYS, OPR_DOIF,
		OPR_DOELSEIF, OPR_DOELSE, OPR_ENDIF, OPR_OPTION, OPR_IN;

extern Atom A_SIN, A_COS, A_TAN, A_ASIN, A_ACOS, A_ATAN, A_ATAN2, A_EXP,
		A_LOG, A_IF, A_FABS, A_EXT_FUNC;