EBNF Compiler

A tool for parsing and compiling Extended Backus-Naur Form (EBNF) grammars.

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Modules

🔍 API Reference

Complete index of all classes, functions, and variables.

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Modules

EBNF Compiler

class ebnf_compiler.Compiler(scanner: ebnf_compiler.scanner.Scanner, parser: ebnf_compiler.parser.Parser)

Bases: object

ast() → Syntax | None

parser: Parser

scanner: Scanner

ebnf_compiler.main(source: ~typing.Annotated[~pathlib.Path, <typer.models.ArgumentInfo object at 0x7f60ca3042f0>], debug: bool = False, show_tree: bool = True, analyze: bool = True)

EBNF Scanner

class ebnf_compiler.scanner.Scanner(eof: bool = False, sym: ebnf_compiler.tokens.Token | None = None, value: str = '', _ch: str = '', _file_name: pathlib._local.Path | None = None, _text: TextIO | None = None, _text_line: str = '', _line_no: int = 0, _col_no: int = 0)

Bases: object

eof: bool = False

get_next_char() → None

get_next_symbol()

init(f: TextIO) → None

open(file_name: Path) → None

print_error(msg: str)

skip_space() → None

sym: Token | None = None

token_map: ClassVar[dict[str, Token]] = {'(': Token.LPAREN, ')': Token.RPAREN, '.': Token.PERIOD, '=': Token.EQL, '[': Token.LBRAK, ']': Token.RBRAK, '{': Token.LBRACE, '|': Token.BAR, '}': Token.RBRACE}

value: str = ''

EBNF Parser

class ebnf_compiler.parser.Parser(scanner: ebnf_compiler.scanner.Scanner, has_error: bool = False)

Bases: object

expression() → Expression

factor() → Factor

has_error: bool = False

parse() → Syntax

production() → Production

raise_error(msg: str) → None

raise_expected_error(expected: Token)

scanner: Scanner

syntax() → Syntax

term() → Term

EBNF Tokens

class ebnf_compiler.tokens.Token(*values)

Bases: Enum

BAR = 6

EOF = 13

EQL = 7

IDENT = 1

LBRACE = 5

LBRAK = 4

LITERAL = 2

LPAREN = 3

OTHER = 12

PERIOD = 11

RBRACE = 10

RBRAK = 9

RPAREN = 8

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