PDF-[PDF]-Compiler Construction Using Java, JavaCC, and Yacc

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The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand

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[PDF]-Compiler Construction Using Java, JavaCC, and Yacc: Transcript

The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand. CSCI - GA.2130 - 001 Lecture 4: Lexical Analysis I Mohamed Zahran (aka Z) mzahran@cs.nyu.edu Role of the Lexical Analyzer • Remove comments and white spaces (aka scanning ) • Macros v. . gram.y. Will produce:. y.output. Bored, lonely? Try this!. yacc -. d. . gram.y. Will produce:. y.tab.h. Look at this and you'll . never be unhappy again!. Shows "State Machine"®. Example: LEX. Has the same three-part structure. as . Lex. . Each part is. separated . by a %% . symbol. The three parts are even identical:. d. efinition . section. r. ules . section. c. ode . section (copied directly into the generated program). Compilers and other translators. Interpreters. Tombstone diagrams. Real . vs. virtual machines. Interpretive compilers. Just-in-time compilers. Portable compilers. Bootstrapping. Programming Languages 3 © 2012 David A Watt, University of Glasgow. a quick review… . What happened before exceptions?. must remember to check return value. OR, must pass label/exception handler to every function. Caller. Function. return status. Caller. Function. label to subprogram. Compiler & Linker expectations. file1.cpp. file2.cpp. filen.cpp. ….. file1.o. file2.o. filen.o. ….. Linker. application . (executable). Compiler. Compiler. Compiler. C++ compiler does not. care about filenames.. Dr. Jeyakesavan Veerasamy. CS faculty. , The University . of Texas at Dallas. Email: jeyv@utdallas.edu . Website: www.utdallas.edu/~jeyv. Goals. Understand C++ vs. Java concepts. Strengthen recursive coding skills. Marc de . Kruijf. Advisor: . Karthikeyan. . Sankaralingam. PhD Defense 07/20/2012. Example. 2. int. sum(. int. *array, . int. . len. ) {. . int. x = 0;. . for. (. int. . i. = 0; . i. < . Dr. Jeyakesavan Veerasamy. Director of CS UTDesign program & . CS Teaching Faculty. jeyv@utdallas.edu. University of Texas at Dallas, USA. History. C (1969) .  C (1979)  Java (1995). Both support OOP. Most OOP library contents are similar, however Java continues to grow.. Contents Contents2Preface3Introduction4Lex6Theory6Practice7Yacc11Theory11Practice Part I12Practice Part II15Calculator18Description18Include File21Lex Input22Yacc Input23Interpreter27Compiler28Graph30 The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand

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"[PDF]-Compiler Construction Using Java, JavaCC, and Yacc"The content belongs to its owner. You may download and print it for personal use, without modification, and keep all copyright notices. By downloading, you agree to these terms.