* Use raw strings.
* Hook usage into flag.
* Print banner to stderr as flag.PrintDefaults does.
* Use the cayley usage rather than the flag ussage when command is
unknown.
* Simplify args handling.
This places all the flag definitions together, making them easier to
find, and makes it possible (in the future) to use db for convenience
functions when we have a Go API, without having flag space contaminated
by cayley main flags.
Move the persistence characteristic of the store into the graph registry
and provide an API hook to get that information.
Add error return for init on a non-persistent store.
Updates #35.
Fixes issue #72
This change simplifies interactions with parsing N-Quads and makes
reading datasets more robust. Changes made while here also improve
performance:
benchmark old ns/op new ns/op delta
BenchmarkParser 1058 667 -36.96%
We still use string concatenation which I'm not wildly happy about, but
I think this can be left for a later change.
Initial changes towards idiomatic error handling have been made. More
significant changes are needed, but these have subtle design implication
and need to be thought about more.
30kmoviesdata.nt.gz has been altered to properly escape double quotes.
This was done mechanically and with manual curation to pick up
straglers.
