Support spaces in $exe path

[kaloyan13]

If uthash is cloned under a path with spaces, it doesn't run the keyscan.* files.

[Quuxplusone]

Good catch!

However, I think "manually escaping a path via string replacement" is a security smell. That is, I think the real fix would be to replace

`$exe @ARGV`

with something in terms of system(@args). Do you happen to know Perl well enough to figure that out for me? :)

I've never used the keystats program; I'd be mildly interested to hear about your use-case.

[kaloyan13]

I can't smell anything :) system() gives no output. You will have to pipe output, then parse. The other option is open("-|"), but for a single line, its too much code.

I used keystats to see, if there is a faster/better function than the default one.

fcn  ideal%     #items   #buckets  dup%  fl   add_usec  find_usec  del-all usec
SAX   91.4%     323765     262144   69%  ok     369341     301862         37661
JEN   91.2%     323765     262144   69%  ok     331568     290620         33546
OAT   90.9%     323765     262144   69%  ok     504209     462986         32241
FNV   90.3%     323765     262144   69%  ok     377140     330207         31727
BER   90.0%     323765     262144   69%  ok     276762     252049         35497
SFH   87.8%     323765     262144   69%  ok     244188     197380         36147

SAX shows 0.2% ideal, but SFH is the fastest, as I can see.

[Quuxplusone]

Merged 7f0aadbb84689d09f46fb7d41b5c9547fb642892 — thanks!