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Hash tables take too much space!
If I use hash tables, the length of the input will be severely
limited, to an unacceptable extent. So we have to use arrays
instead.
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Just to save some work.
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Now we have the potential to recognize character classes. But the
most important task for us now is to experiment with ((B)RN)GLR
algorithms, so we leave the character classes at the present state for
a moment.
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Now some problems are fixed.
It can now read grammar correctly (hopefully) from a file, in the BNF
format. And strings (terminals) are handled fine as well. So glad
that there are no leak problems now.
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Now we can read grammars from a file.
But we need to check if it works for reading strings still.
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The current representation of the grammar is the most primitive BNF.
This is the simplest to implement, but is difficult to cope with user
requirements. Moreover, I find another paper describing the GLR
algorithm, so I need to think about the representation of the grammar
more. In particular, I would like the generation of the grammar to be
incremental, so per chance its data type should be adapted
accordingly.
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