Sdd - Syntax Diagrams
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Sdd - Syntax Diagrams as PDF for free.
More details
- Words: 108
- Pages: 1
Software Design & Development
SYNTAX DIAGRAMS They are used to describe the rules of programming languages. There are THREE major ways of representing them: 1. BNF 2. EBNF 3. Railroad Diagrams How Do They Work? Digit = 1 | 2| 3 Number = * Sum = {}-{} Legal Statement – Sum = (1*2) – (2*3) Illegal Statement – Sum = (1*4)-(2*3) WHY IS THE ABOVE STATEMENT ILLEGAL? _______________________
Activity 1 = a|b|c|….x|y|z = 0|1|2|3|…8|9 = +|-|>|=|>=|<= <Statement> = {[]|[]|[]} = IF<Statement>THEN<Statement>ELSE<Statement> 1. Draw a railroad diagram for the above EBNF Statement. 2. Create a railroad diagram for multi-way selection structure.
SYNTAX DIAGRAMS They are used to describe the rules of programming languages. There are THREE major ways of representing them: 1. BNF 2. EBNF 3. Railroad Diagrams How Do They Work? Digit = 1 | 2| 3 Number =
Activity 1
