T-rule
From UNL Wiki
(Difference between revisions)
(Created page with "T-rules, or transformation rules, are rules that alter the state of the machine. As describe in the UNL Grammar Specs, they follow the general formalism: <INITIAL STATE>:...") |
|||
| Line 2: | Line 2: | ||
<INITIAL STATE>:=<FINAL STATE>; | <INITIAL STATE>:=<FINAL STATE>; | ||
And may be classified according to the type of modification that they promote: | And may be classified according to the type of modification that they promote: | ||
| − | *LL, or list-to-list, | + | *LL, or list-to-list, where the initial state and the final state are list structures |
| − | *TT, or tree-to-tree, | + | *TT, or tree-to-tree, where the initial state and the final state are tree structures |
| − | *NN, or network-to-network, | + | *NN, or network-to-network, where the initial state and the final state are network structures |
*LT, or list-to-tree, converts lists into trees | *LT, or list-to-tree, converts lists into trees | ||
*TL, or tree-to-list, converts trees into lists | *TL, or tree-to-list, converts trees into lists | ||
*TN, or tree-to-networks, converts trees into networks | *TN, or tree-to-networks, converts trees into networks | ||
*NT, or network-to-trees, converts networks into trees | *NT, or network-to-trees, converts networks into trees | ||
Revision as of 23:06, 2 August 2012
T-rules, or transformation rules, are rules that alter the state of the machine. As describe in the UNL Grammar Specs, they follow the general formalism:
<INITIAL STATE>:=<FINAL STATE>;
And may be classified according to the type of modification that they promote:
- LL, or list-to-list, where the initial state and the final state are list structures
- TT, or tree-to-tree, where the initial state and the final state are tree structures
- NN, or network-to-network, where the initial state and the final state are network structures
- LT, or list-to-tree, converts lists into trees
- TL, or tree-to-list, converts trees into lists
- TN, or tree-to-networks, converts trees into networks
- NT, or network-to-trees, converts networks into trees
