PPT-Lexer
Author : trish-goza | Published Date : 2017-06-26
input and Output i d3 0 LF w id3 0 while id3 lt 10 lexer Stream of Chars lazy ListChar class CharStream fileName String val file new BufferedReader
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Lexer: Transcript
input and Output i d3 0 LF w id3 0 while id3 lt 10 lexer Stream of Chars lazy ListChar class CharStream fileName String val file new BufferedReader. // Where things work very nicely for recursive descent!. statmt. . ::= . . . println. ( . stringConst. , . ident. ). . . |. . ident. = . expr. . |. . if ( . Let us use (context-free) . grammars. !. Context Free . Grammar for . a. n. b. n. S ::= . . - a grammar rule. S ::= . a . S . b . - another grammar rule. Example of a derivation. S => . : A Modular Lexical . Specification Language. Andrew Casey. Laurie . Hendren. . McGill University. TexPoint fonts used in EMF. . Read the TexPoint manual before you delete this box.: . A. A. A. A. A. COS 320. Compiling Techniques. Princeton University . Spring . 2016. Lennart . Beringer. 2. The Compiler. 3. Lexical Analysis. Goal: break stream of ASCII characters (source/input) into sequence of .
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