We have a system in place for quantifying quotes at http://backrecord.com . On the system that is live, all data has been entered by hand. The task is difficult enough that I've found even educated people who know about finance screw up the data entry more than I would like. So we have a sophisticated verification system in place to try and deal with that. We have also experimented with NLP algorithms with some success. If the data extraction is tailored to a particular source, it is quite doable in some cases.