Syntax is a lexical analysis framework. It supports pluggable syntax modules, and comes with modules for Ruby, XML, and YAML. It means you can use Syntax to take a body of text representing instructions in some syntax (like Ruby), and break that text into tokens. You could conceivably use it to count the number of classes in a system, or the number of lines of code per method. But Syntax was written specifically with syntax highlighting in mind.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.