Something possibly along lines of either overriding [[ bracket or m[] returns an mmap subset which [] would then materialize. Not sure of design pattern here and whether this could be implemented in as a package above this lower level implementation of mmap

Add support for nul separated character arrays (C-style).

Likely need to dynamically mmap as raw, find nuls and then maintain an offset corresponding to the number of elements (len) in file. When querying, the char can be mapped in dynamically with only additional overhead being this additional index. The index could also be in turn mmapped back out and kept out of core.

2828

Best regards :)

Enable the (re)use of comparison SEXP to possibly be vectorized - this would allow for na.strings= behavior akin to read.table, but would also open door to multiple comparisons for all Ops (mmap_compare) operations.