Need an example for how Go syntax for assignment operator uses the grammar rules specified using EBNF

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As mentioned in the docs, syntax in Go is specified using Extended Backus-Naur Form (EBNF):

Production  = production_name "=" [ Expression ] "." .
Expression  = Alternative { "|" Alternative } .
Alternative = Term { Term } .
Term        = production_name | token [ "…" token ] | Group | Option | Repetition .
Group       = "(" Expression ")" .
Option      = "[" Expression "]" .
Repetition  = "{" Expression "}" .

I am trying to understand how Go syntax grammar is defined, how to breakdown/derive/understand the expression i++ and i+=1 using these grammar rules. How would these production rules be substituted step by step for the purpose of illustration?

ebnf go
1 Answers

The expression i++ uses the grammar rule for IncDec statements:

IncDecStmt = Expression ( "++" | "--" ) .

Here, production_name would be IncDecStmt and Term would be "++" or "--".

user_46215130
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