#!/usr/bin/python3

# Copyright 2025, Jonas Smedegaard <dr@jones.dk>
# SPDX-License-Identifier: GPL-3+

from os.path import basename, splitext
from railroad import *

Diagram(
	Choice(0,
		Sequence(
			'"',
			Optional(NonTerminal("_"), True),
			NonTerminal("!'\"' PlainWords"),
			Optional(NonTerminal("_"), True),
			'"',
		),
		Sequence(
			"'",
			Optional(NonTerminal("_"), True),
			NonTerminal("!\"'\" PlainWords"),
			Optional(NonTerminal("_"), True),
			"'",
		),
		Sequence(
			"(",
			Optional(NonTerminal("_"), True),
			NonTerminal("![()] PlainWords"),
			Optional(NonTerminal("_"), True),
			")",
		)
	),
	type="complex"
).writeStandalone(
	open(splitext(basename(__file__))[0] + ".svg", "w").write)