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2021-01-22
What is a syntax diagram??
A graphical equivalent of BNF.
What does this represent in a syntax diagram??
A terminal symbol.
What does this represent in a syntax diagram??
A non-terminal symbol.
What does this represent in a syntax diagram??
A non-terminal symbol that can be used more than once.
Can you picture what a non-zero digit would look like in a syntax diagram??
Can you picture what an integer would look like in a syntax diagram, made from a “non-zero-digit” and a “digit” category??
What does the fork on the left hand side of this syntax diagram mean??
A digit can either be a non-zero digit or a zero.
How would you write this in BNF using a “non-zero-digit” category??
<digit> ::= <non-zero-digit>|0
How would you write this in BNF using a “non-zero-digit” and a “digit” category??
<integer> ::= <non-zero-digit>|<integer><digit>
When drawing a syntax diagram, should you write recursive rules or iterative ones??
Iterative rules.
Question
Are you allowed to use recursive definitions in syntax diagrams??
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date: 2021-01-22 11:29
tags:
- '@?computing'
- '@?regular-languages'
- '@?public'
title: Computing - Syntax Diagrams
