PDF-This packet provides guidelines and fun exercises for introducing expr

Author : debby-jeon | Published Date : 2015-09-17

Form 8ACut out the sentence cards on Form 8A Ask for volunteers to each pick a sentence card to read aloud in front of the class without any props or costumes Then

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This packet provides guidelines and fun exercises for introducing expr: Transcript

Form 8ACut out the sentence cards on Form 8A Ask for volunteers to each pick a sentence card to read aloud in front of the class without any props or costumes Then have the same students in turn. (via . CUP. ). 1. High-level structure. JFlex. javac. Lexer. spec. Lexical . analyzer. text. tokens. .java. CUP. javac. Parser. spec. .java. Parser. AST. TPL.cup. TPL.lex. sym.java. Parser.java. Lexer.java. Marktoberdorf Lectures. August 2015. Sumit Gulwani. . Domain-specific Languages. 1. Lecture 2. 2. PBE Architecture. Example-based specification. Search Algorithm. Challenge 1: . Ambiguous/under-specified . 2 classExprclassNum(valvalue:int)extendsExprclassVar(valname:String)extendsExprclassMul(valleft:Expr,valright:Expr)extendsExprAparticularexpressionwouldthenbeconstructedasfollows newMul(newNum(21),new CSci210.BA4. Chapter 4 Topics. Introduction. Lexical and Syntax Analysis. The Parsing Problem. Recursive-Descent Parsing. Bottom-Up Parsing. Introduction. Syntax analyzers . almost always based on a formal description of the syntax of the source language (grammars) . (published at ESEC/FSE’09). Yingfei Xiong. Ph.D., University of Tokyo. Will be a postdoc@Univ. Waterloo since Dec. Joint work with. Zhenjiang Hu, Haiyan Zhao, Hui Song, . Masato Takeichi, and Hong Mei. 1. Last Time. What do we want?. An AST. When do we want it?. Now!. 2. This Time. A little review of ASTs. The philosophy and use of a . Parser Generator. 3. Translating Lists. 4. CFG. IdList. -> . Armando Solar-Lezama. Synthesis: 1980s view. Complete Formal Specification. Synthesis: modern view. . . Space of programs. . Reference Implementation. Test Harnesses. Input/Output. Examples. . Parsing Arbitrary Grammars. Parsing using CYK Algorithm. 1) Transform any grammar to Chomsky Form, . in this order. , to ensure:. terminals t occur . alone on . the right-hand side: X:=t. no unproductive non-terminals symbols. Attributes can have any type, but often they are trees. Example:. context-free grammar rule: . A ::= B C. attribute grammar rules:. A ::= B C . { . Plus($1. , $. 2. ) . }. or, . e.g.. A ::= B. CSE 3541. Matt . Boggus. Content. Parameterized models of trees. Lindenmayer. Systems. Self-similarity, Rewriting. D0L-systems. Grammars. Graphic Interpretation. SpeedTree. – a commercial tool for plant . Daniel Moth. Developer & Platform Group. Microsoft Ltd. daniel.moth@microsoft.com. . http://www.danielmoth.com/Blog. . .NET Through The Ages. 2002. 2003. 2005. 2006. 2007 (?). Tool. (Visual Studio). Chapter 3: Describing Syntax and Semantics. - Introduction. - The General Problem of Describing Syntax. - Formal Methods of Describing Syntax. - Attribute Grammars. - Describing the Meanings of Programs: Dynamic Semantics. Hao. Wang and Bill Lin. University of California, San Diego. HSPR 2010, Dallas. HPSR, June 13-16, 2010. Packet Buffer in Routers. Scheduler . and . Packet . Buffers. i. n. Input . linecards. . have . egl-17mid L4late L4young adultold adultmid L4late L4young adultold adultmid L4late L4young adultold adultmid L4late L4young adultold adultmid L4late L4young adultold adultmid L4late L4young adultold a

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