I noticed a small typo in the HTML documentation for BIRD 2.17.1, in the Filters section:
In the example filter not_too_far, the comparison uses the HTML entity > instead of the literal > character. If you copy the example as-is into a BIRD configuration file, the line
if rip_metric > 10 then
causes a “Unknown character” error when BIRD parses the configuration. Replacing > with > fixes the problem:
if rip_metric > 10 then
It would be helpful if the documentation could be updated so the example uses the correct > character, to avoid confusing users who copy the example directly.