  The generating functional for Green functions of quark currents is given in
closed form to next-to-leading order in the low-energy expansion for chiral
SU(3), including one-loop amplitudes with up to three meson propagators. Matrix
elements and form factors for strong and nonleptonic weak processes with at
most six external states can be extracted from this functional by performing
three-dimensional flavour traces. To implement this procedure, a Mathematica
program is provided that evaluates amplitudes with at most six external mesons,
photons (real or virtual) and virtual W (semileptonic form factors). The
program is illustrated with several examples that can be compared with existing
calculations.
