Simple LR parser: Difference between revisions

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== Lookahead Sets ==
 
To understand the differences between SLR and LALR, you should first understand their many similarities and how they both make shift-reduce decisions. Please read article [[LR parser]] now for that background, up through the section on reductions' Lookahead Sets. amongst the grammar
 
The one difference between SLR and LALR is how their generators calculate the '''lookahead sets''' of input symbols that should appear next, whenever some completed [[Formal grammar#The syntax of grammars|production rule]] is found and reduced.
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[[pl:Parser SLR]]
[[sr:SLR analizator]]
This is the