Grammar File

This document is a work in progress

The Citron Grammar File

The Citron Grammar File contains:

• The rules of the input grammar in a BNF-like format
• The code blocks associated with each rule of the grammar
• Citron directives, including type declarations

Rules

Code blocks

Directives

Specifying types

• token_type
• default_nonterminal_type
• nonterminal_type

Naming

• class_name
• token_prefix

Code insertion

• preface
• epilogue
• extra_class_members

Precedence and associativity

• left_associative
• right_associative
• non_associative

Grammar controls

• start_symbol
• token
• fallback
• wildcard
• token_set