To install on Linux or WSL:
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git clone https://github.com/speedydelete/lifeweb
cd lifeweb
./install
To get some information about how to use it, run ./vls -h.
Here are some example searches:
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# finds the glider
./vls B3/S23 periodic 'c/4d' 4 4
# does not finds the glider because of how the bounding box works
# generations 0 to <period> must fit in the box
# this is not the same as rlifesrc
./vls B3/S23 periodic 'c/4d' 3 4
# finds the xWSSes
./vls B3/S23 periodic '2c/4o' 7 9
# finds all 3x3 c/2o's in INT
./vls B/S B1e2345678/S012345678 periodic 'c/2o' 3 3
# disproves 8x8 (2, 1)c/3 in OT (outer-totalistic, aka life-like) rules
./vls B2/S B2345678/S012345678 periodic '(2, 1)c/3' 8 8 -rulespace=ot -o='g-f2b'
# find all parents of the glider
./vls B3/S23 parent 'bo$2bo$3o!'
There is very advanced duplicate solution detection, however it is still broken in a few places. It also keeps track of and reports max partials.
Search order is an important part of using VLS effectively, it is set via the -o option. For instance, the OT 8x8 (2, 1)c/3 search above would take far too long with f2b search order, but it is very quick with g-f2b. However, some searches are slower with g-f2b. This is explained in more detail in the help text (including fully custom search orders), but the basics is, you can provide "f2b" (front to back, the default), "b2f" (back to front), and "s2s" (side to side), but you can also prefix them with the g- option, which makes it find all generations of the row before going on to the next, this can increase or decrease speed depending on the search.
There are a few options that can increase the speed depending on the search. I don't fully understand what causes them to be faster and not faster. They are -no-cache-trs, --check-times, and -clang.
