go-pkg/expr
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int-iterator is now defined interval

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This commit is contained in:
Celestino Amoroso
2026-07-28 07:16:49 +02:00
parent 8e596d5979
commit 648533cbe3
12 changed files with 90 additions and 70 deletions
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parser.go
+16 -21
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@@ -173,33 +173,28 @@ func (parser *parser) parseList(scanner *scan.Scanner, ctx parserContext, termSy
itemExpected := false
itemCtx := remFlags(ctx, allowIndex)
for lastSym != termSym && lastSym != sym.SymEos {
// zeroRequired := scanner.Current().Sym == sym.SymDoubleDot
var itemTree *scan.Ast
if itemTree, err = parser.parseItem(scanner, itemCtx, sym.SymComma, termSym); err == nil {
root := itemTree.Root()
if root != nil {
if hasFlag(ctx, allowIndex) && root.Symbol() == sym.SymDoubleDot {
changeColonToInterval(root)
if root.Symbol() == sym.SymDoubleDot {
if hasFlag(ctx, allowIndex) {
changeColonToInterval(root)
} else {
// err = root.Errorf("unexpected range expression")
err = errIntervalUnexpectedExpression(root)
break
}
}
if !hasFlag(ctx, allowIndex) && root.Symbol() == sym.SymInterval {
// err = root.Errorf("unexpected range expression")
err = errIntervalUnexpectedExpression(root)
break
}
args = append(args, root)
// if hasFlag(ctx, allowIndex) && root.Symbol() == sym.SymInterval && zeroRequired { //len(root.children) == 0 {
// if len(root.Children) == 1 {
// root.Children = append(root.Children, root.Children[0])
// } else if len(root.Children) > 1 {
// // err = root.Errorf("invalid range specification")
// err = errIntervalInvalidSpecification(root)
// break
// }
// zeroTk := scan.NewValueToken(root.Tk.Row(), root.Tk.Col(), sym.SymInteger, "0", int64(0))
// zeroTerm := scan.NewTerm(zeroTk)
// zeroTerm.SetParent(root)
// root.Children[0] = zeroTerm
// if hasFlag(ctx, allowIndex) && root.Symbol() == sym.SymDoubleDot {
// changeColonToInterval(root)
// }
// if !hasFlag(ctx, allowIndex) && root.Symbol() == sym.SymInterval {
// // err = root.Errorf("unexpected range expression")
// err = errIntervalUnexpectedExpression(root)
// break
// }
args = append(args, root)
} else if itemExpected {
prev := scanner.Previous()
err = prev.ErrorExpectedGot("list-item")