Recursive descent parsing for grammars with contexts
Recursive descent parsing for grammars with contexts
Recursive descent parsing for grammars with contexts
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Results<strong>Recursive</strong> <strong>descent</strong> parser:Theory:conjunction in rules: scan the substring multiple timesright <strong>contexts</strong> (✄, ): to choose suitable alternatives of rulesbacktracking: to go over the alternativesmemoization: linear time instead of exponentialmathematically sound definition of right <strong>contexts</strong>(“look-ahead”) <strong>with</strong>in recursive <strong>descent</strong>Practice:higher expressive power, but still linear time<strong>parsing</strong> algorithm proven correctimplemented as a prototype softwareMikhail Barash<strong>Recursive</strong> <strong>descent</strong> <strong>for</strong> <strong>grammars</strong> <strong>with</strong> <strong>contexts</strong>
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