LL Parser - Conflicts

Conflicts

As described in the introduction, LL(1) parsers recognize languages that have LL(1) grammars, which are a special case of context-free grammars (CFG's); LL(1) parsers cannot recognize all context-free languages. The LL(1) languages are a proper subset of the LR(1) languages which in turn are a proper subset of all context-free languages. In order for a CFG to be an LL(1) grammar, certain conflicts must not arise, which we describe in this section.

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    Not all conflicts between siblings are good, of course. A child who is repeatedly humiliated or made to feel insignificant by a brother or sister is learning little except humiliation and shame.
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    They [parents] can help the children work out schedules for homework, play, and television that minimize the conflicts involved in what to do first. They can offer moral support and encouragement to persist, to try again, to struggle for understanding and mastery. And they can share a child’s pleasure in mastery and accomplishment. But they must not do the job for the children.
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    The more parents intervene, the more siblings fight. And the bigger role parents assume in settling arguments, the less chance siblings have to learn how to resolve conflicts for themselves.
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