PeggyJS ini file grammar

ini-grammar.txt

{
  function makeObject(entries) {
    const result = {};
    for (const [key, value] of entries) {
      result[key] = value;
    }
    return result;
  }
}

IniFile
  = _ sections:Section* _ { return makeObject(sections); }

Section
  = "[" _ name:Identifier _ "]" _ entries:Entry* _ { return [name, makeObject(entries)]; }

Entry
  = key:Identifier _ "=" _ value:Value _ { return [key, value]; }

Identifier
  = chars:[a-zA-Z0-9_]+ { return chars.join(''); }

Value
  = chars:[^\n#]+ { return chars.join('').trim(); }

_ 
  = (Whitespace / Comment)*

Whitespace 
  = [ \t\r\n]+

Comment
  = [#|;] [^\n]*