INNER CODE UNIT · JavaScript
renderTok
kach/nearley · bin/nearley-railroad.js:55
function renderTok(tok) {
// ctx translated to correct position already
if (tok.subexpression) {
return new rr.Choice(0, tok.subexpression.map(renderTok));
} else if (tok.ebnf) {
switch (tok.modifier) {
case ":+":
return new rr.OneOrMore(renderTok(tok.ebnf));
break;
case ":*":
return new rr.ZeroOrMore(renderTok(tok.ebnf));
break;
case ":?":
return new rr.Optional(renderTok(tok.ebnf));
break;
}
} else if (tok.literal) {
return new rr.Terminal(JSON.stringify(tok.literal));