'Reduce reduce' presentation slideshows

?? Hadoop ????????

946 views • 45 slides

??Hadoop????????

613 views • 45 slides

Parsing #2

Leonidas Fegaras. Parsing #2. Bottom-up Parsing. Rightmost derivations; use of rules from right to left Uses a stack to push symbols the concatenation of the stack symbols with the rest of the input forms a valid bottom-up derivation E - num x-2*y$

548 views • 26 slides

Bottom-Up Parsing

756 views • 25 slides

Sections 4.5,4.6

313 views • 22 slides

LALR PARSER

302 views • 13 slides

Syntax error handling Errors can occur at many levels lexical: unknown operator

Syntax error handling Errors can occur at many levels lexical: unknown operator syntactic: unbalanced parentheses semantic: variable never declared runtime: reference a NULL pointer Goals of error-handling in a parser To detect and report the presence of errors

299 views • 12 slides

YACC Primer

265 views • 11 slides