Handling more SMILES

[chem-william]

Is there any interest in covering SMILES strings a bit more extensively? I don't think they strictly follow the specification by OpenSMILES, but rdkit seems to explicitly want to handle them:
Out of the following list of SMILES

        CCC
        C1CCC2(CC1)CO2
        c1ccc[se]1
        c1ccc[te]1
        C0CC0
        C/C(/C=C2\\Sc1ccc(cc1N\\2C))=C5\\SC4=NccN4C\\5=O
        [HH]
        [2HH]
        [HH2-]
        [2HH2-]
        b1ccccc1
        C[Rf]C
        [C:1]
        [C:0]
        [si]1cccc[si]1
        [asH]1cccc1
        [Db][Sg][Bh][Hs][Mt][Ds][Rg][Cn][Nh][Fl][Mc][Lv][Ts][Og]
        [Uun][Uuu][Uub][Uut][Uuq][Uup][Uuh][Uus][Uuo]
        ['Db']['Sg']['Bh']['Hs']['Mt']['Ds']['Rg']['Cn']['Nh']['Fl']['Mc']['Lv']['Ts']['Og']
        C[Fe@TH](O)(Cl)F
        C[Fe@TH1](O)(Cl)F
        C[Fe@SP](O)(Cl)F
        C[Fe@SP1](O)(Cl)F
        C[Fe@TB](O)(Cl)(Br)F
        C[Fe@TB10](O)(Cl)(Br)F
        C[Fe@OH](O)(Cl)(Br)(N)F
        C[Fe@OH20](O)(Cl)(Br)(N)F

these are not understood by Purr:

[src/main.rs:64:13] s = "c1ccc[te]1"
[src/main.rs:64:13] s = "[si]1cccc[si]1"
[src/main.rs:64:13] s = "[Uun][Uuu][Uub][Uut][Uuq][Uup][Uuh][Uus][Uuo]"
[src/main.rs:64:13] s = "['Db']['Sg']['Bh']['Hs']['Mt']['Ds']['Rg']['Cn']['Nh']['Fl']['Mc']['Lv']['Ts']['Og']"
[src/main.rs:64:13] s = "C[Fe@TH](O)(Cl)F"
[src/main.rs:64:13] s = "C[Fe@SP](O)(Cl)F"
[src/main.rs:64:13] s = "C[Fe@TB](O)(Cl)(Br)F"
[src/main.rs:64:13] s = "C[Fe@OH](O)(Cl)(Br)(N)F"

I'm aware that Balsa is supposed to supersede Purr, but that library handles even fewer cases than Purr

I'd be happy to give it a shot implementing these cases

[JakobBruenker]

@chem-william unfortunately it appears that the owner of this repo @rapodaca passed away late last year from brain cancer.

[chem-william]

Thanks for the reply! And yes, I sadly also realized that. Due to that, I've made a hard fork of Purr here.