  Within the ESPRESSO project a new flexible data reduction library is being
built. ESPRESSO, the Echelle SPectrograph for Rocky Exoplanets and Stable
Spectral Observations is a fiber-fed, high-resolution, cross-dispersed echelle
spectrograph. One of its main scientific goals is to search for terrestrial
exoplanets using the radial velocity technique. A dedicated pipeline is being
developed. It is designed to be able to reduce data from different similar
spectrographs: not only ESPRESSO, but also HARPS, HARPS-N and possibly others.
Instrument specifics are configurable through an input static configuration
table. The first written recipes are already tested on HARPS and HARPS-N real
data and ESPRESSO simulated data. The final scientific products of the pipeline
will be the extracted 1-dim and 2-dim spectra. Using these products the radial
velocity of the observed object can be computed with high accuracy. The library
is developed within the standard ESO pipeline environment. It is being written
in ANSI C and makes use of the Common Pipeline Library (CPL). It can be used in
conjunction with the ESO tools Esorex, Gasgano and Reflex in the usual way.
