|
private InterpretMinusTokenBackwards ( IEnumerable |
||
| tokens | IEnumerable |
|
| return | IEnumerable |
|
private IEnumerable<IFormulaToken> InterpretMinusTokenBackwards(IEnumerable<IFormulaToken> tokens)
{
foreach (var context in tokens.WithContext())
{
var nextToken = context[0];
var token = context[1];
// handle minus token
var minusToken = nextToken as FormulaNodeSubtract;
if (minusToken != null)
{
nextToken = InterpretMinusToken(token, minusToken);
yield return nextToken;
}
// yield any non minus token
if (token != null && !(token is FormulaNodeSubtract)) yield return token;
}
}
