词语大全 leftmost derivation造句 leftmost derivationの例文 "leftmost derivation"是什麼意思

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词语大全 leftmost derivation造句 leftmost derivationの例文 "leftmost derivation"是什麼意思

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We say that G is LL ( k ), if and only if for any o leftmost derivations:

For example, if the string " 1 + 1 + a " is derived according to the leftmost derivation:

LL parsers will generate a leftmost derivation and LR parsers will generate a rightmost derivation ( although usually in reverse ).

An important distinction with regard to parsers is whether a parser generates a " leftmost derivation " or a " rightmost derivation " ( see context-free grammar ).

The distinction beeen leftmost derivation and rightmost derivation is important because in most parsers the transformation of the input is defined by giving a piece of code for every grammar rule that is executed whenever the rule is appped.

It\'s difficult to find leftmost derivation in a sentence. 用leftmost derivation造句挺難的

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