====== EBNF test ======

An attempt for a more visual representation for [[v5:dictionary:column_attributes]]

Simplified EBNF syntax
<code>
columns = column, {",", column};
column = colname, type, {attribute};
type = metatype, [size];
attribute = ("AUTO|AUTOINCREMENT") 
| "CONSTRAINT", constraint 
| "DEF|DEFAULT", value | "DEFDATE" | "DEFTIMESTAMP" 
| "ENUM(", value, {",", value}, ")"
| "INDEX" 
| "NOQUOTE" 
| "NOTNULL" 
| "PRIMARY|KEY"
| "UNIQUE"
| "UNSIGNED"
;
</code>

Use with https://jacquev6.github.io/DrawGrammar/ to generate a PNG with railroad diagram

{{:playground:ebnf.png|}}