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资源说明：A tool that extracts links and definitions from the CL HyperSpec as an RDF graph
Interlinking information for the HyperSpec
==========================================
The [CLHS][clhs] comes
with [~110000
links](http://www.lispworks.com/documentation/HyperSpec/Front/Help.htm#Trivia). We
know where each one of them goes, but where do they come from?
Imagine you're looking at a glossary entry. It's normative, but to
which areas of the spec is it relevant? Which functions depend on its
definition? I often asked myself that, and it bothered me enough that
I wrote this program to extract the hyperlinking structure from the
[CLHS][clhs] into an RDF graph, which can be imported into any
database (of course, I recommend [agraph](http://franz.com)) that can
answer these types of questions.
= Creating the triple information
1. Install the dependencies:
- asdf
- cxml-stp
- closure-html
- cl-ppcre
- drakma
2. Load the clsem.asd, `(asdf:oos 'asdf:load-op :clsem)`
3. `(clsem:do-it #p"/path/to/output/file.ttl")`
This will query the lispworks HTTP servers and will take a long, long time. If you have a copy of the HyperSpec downloaded, you can use:
(clsem:do-it #p"/path/to/output/file.ttl"
:prefix "file:///Users/asf/Downloads/HyperSpec-7-0/HyperSpec")
And it will finish in ~9 seconds.
This file is in the [turtle](http://www.w3.org/TeamSubmission/turtle/) RDF triple language format. If you import the data into a graph database, things may be easier if you convert it to the ntriples format first. I recommend using the most excellent [rapper](http://librdf.org/raptor/rapper.html) for this task.
[clhs]: http://www.lispworks.com/documentation/HyperSpec
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