pre_parse filters are not particularly useful at the moment.

[danielrichman]

Since we changed to having config in a YAML file pre-parse filters can't be easily set at runtime, so while it is possible to add one and restart the daemon, this could be better. There have been exactly zero uses for a pre parse filter so far though.

Also relevant (sort of): default_config has suffered the same fate. Similarly has not had any use. Could drop this feature from the parser tbh; would simplify the parse function.

[adamgreig]

default_config has been removed from the parser

[danielrichman]

Having just had to use a pre_filter (remove 0x00s from a string with UKHAS therefore refused to even contemplate parsing): feature request - ability to specify pre_filters in couch