Hello all,
I've added a couple of new functions in lttoolbox
void apply_override(int const input, int const old_sym, int const
new_sym);
void step_override(int const input, int const old_sym, int const
new_sym);
The behaviour is as follows:
You can step the transducer using the input "input", and if the output
symbol matches "old_sym" it is replaced with "new_sym".
You can use this to implement "copying", for example, if you have the
transducer:
0 1 t t
1 2 a a
2 3 k k
3 4 e e
4 5 ε #
5 6 ε
6 7 ε o
7 8 ε u
8 9 ε t
9 10 <vblex> <vblex>
10 11 <ANY_TAG> <ANY_TAG>
11 10 ε ε
11 12 <$> <$>
12 13 o ε
13 14 u ε
14 15 t ε
15 16 <ANY_TAG> ε
16 17 <$> ε
17
And the input
^take<vblex><pres><p3><sg>$ ^out<adv>$
Then running step_override(alphabet(L"<pres>"), alphabet(L"<ANY_TAG>"),
alphabet(L"<pres>")) when you are in state 10 will result in the output:
take<vblex><pres> instead of take<vblex><ANY_TAG>
I have implemented this for the separable multiwords project. Please let
me know what you think, if you can forsee any problems, or if you can
think of a more elegant solution :)
Fran
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