Fixed the issue with colons in ident

ucl/ast.go

@@ -2,6 +2,7 @@ package ucl
 
 import (
 	"io"
+	"strings"
 
 	"github.com/alecthomas/participle/v2"
 	"github.com/alecthomas/participle/v2/lexer"
@@ -12,11 +13,19 @@ type astLiteral struct {
 	Int *int    `parser:"| @Int"`
 }
 
-type astHashKey struct {
-	Literal *astLiteral  `parser:"@@"`
-	Ident   *string      `parser:"| @Ident"`
-	Var     *string      `parser:"| DOLLAR @Ident"`
-	Sub     *astPipeline `parser:"| LP @@ RP"`
+type astIdentNames struct {
+	Ident      string   `parser:"@Ident"`
+	ColonParts []string `parser:"( COLON @Ident )*"`
+}
+
+func (ai *astIdentNames) String() string {
+	sb := strings.Builder{}
+	sb.WriteString(ai.Ident)
+	for _, p := range ai.ColonParts {
+		sb.WriteRune(':')
+		sb.WriteString(p)
+	}
+	return sb.String()
 }
 
 type astElementPair struct {
@@ -41,7 +50,7 @@ type astMaybeSub struct {
 
 type astCmdArg struct {
 	Literal    *astLiteral    `parser:"@@"`
-	Ident      *string        `parser:"| @Ident"`
+	Ident      *astIdentNames `parser:"| @@"`
 	Var        *string        `parser:"| DOLLAR @Ident"`
 	MaybeSub   *astMaybeSub   `parser:"| LP @@ RP"`
 	ListOrHash *astListOrHash `parser:"| @@"`
@@ -83,7 +92,7 @@ var scanner = lexer.MustStateful(lexer.Rules{
 		{"RC", `\}`, nil},
 		{"NL", `[;\n][; \n\t]*`, nil},
 		{"PIPE", `\|`, nil},
-		{"Ident", `[-]*[a-zA-Z_:][\w-:]*`, nil},
+		{"Ident", `[-]*[a-zA-Z_][\w-]*`, nil},
 	},
 })
 var parser = participle.MustBuild[astScript](participle.Lexer(scanner),

ucl/builtins.go

@@ -334,10 +334,11 @@ func foreachBuiltin(ctx context.Context, args macroArgs) (object, error) {
 				}
 			}
 		}
-	case hashObject:
-		for k, v := range t {
+	case hashable:
+		err := t.Each(func(k string, v object) error {
 			last, err = args.evalBlock(ctx, blockIdx, []object{strObject(k), v}, true)
-			if err != nil {
+			return err
+		})
 		if errors.As(err, &breakErr) {
 			if !breakErr.isCont {
 				return breakErr.ret, nil
@@ -346,8 +347,6 @@ func foreachBuiltin(ctx context.Context, args macroArgs) (object, error) {
 			return nil, err
 		}
 	}
-		}
-	}
 
 	return last, nil
 }

ucl/eval.go

@@ -72,7 +72,7 @@ func (e evaluator) evalPipeline(ctx context.Context, ec *evalCtx, n *astPipeline
 func (e evaluator) evalCmd(ctx context.Context, ec *evalCtx, currentPipe object, ast *astCmd) (object, error) {
 	switch {
 	case ast.Name.Ident != nil:
-		name := *ast.Name.Ident
+		name := ast.Name.Ident.String()
 
 		// Regular command
 		if cmd := ec.lookupInvokable(name); cmd != nil {
@@ -117,14 +117,14 @@ func (e evaluator) evalInvokable(ctx context.Context, ec *evalCtx, currentPipe o
 		argsPtr.Append(currentPipe)
 	}
 	for _, arg := range ast.Args {
-		if ident := arg.Ident; ident != nil && (*ident)[0] == '-' {
+		if ident := arg.Ident; ident != nil && ident.String()[0] == '-' {
 			// Arg switch
 			if kwargs == nil {
 				kwargs = make(map[string]*listObject)
 			}
 
 			argsPtr = &listObject{}
-			kwargs[(*ident)[1:]] = argsPtr
+			kwargs[ident.String()[1:]] = argsPtr
 		} else {
 			ae, err := e.evalArg(ctx, ec, arg)
 			if err != nil {
@@ -153,7 +153,7 @@ func (e evaluator) evalArg(ctx context.Context, ec *evalCtx, n astCmdArg) (objec
 	case n.Literal != nil:
 		return e.evalLiteral(ctx, ec, n.Literal)
 	case n.Ident != nil:
-		return strObject(*n.Ident), nil
+		return strObject(n.Ident.String()), nil
 	case n.Var != nil:
 		if v, ok := ec.getVar(*n.Var); ok {
 			return v, nil

ucl/objs.go

@@ -194,7 +194,7 @@ func (ma macroArgs) identIs(ctx context.Context, n int, expectedIdent string) bo
 		return false
 	}
 
-	return *lit == expectedIdent
+	return lit.String() == expectedIdent
 }
 
 func (ma *macroArgs) shiftIdent(ctx context.Context) (string, bool) {
@@ -205,7 +205,7 @@ func (ma *macroArgs) shiftIdent(ctx context.Context) (string, bool) {
 	lit := ma.ast.Args[ma.argShift].Ident
 	if lit != nil {
 		ma.argShift += 1
-		return *lit, true
+		return lit.String(), true
 	}
 	return "", false
 }

ucl/testbuiltins_test.go

@@ -465,20 +465,20 @@ func TestBuiltins_Map(t *testing.T) {
 			proc makeUpper { |x| $x | toUpper }
 
 			map ["a" "b" "c"] (proc { |x| makeUpper $x }) 
-			`, want: "[A B C]\n"},
+			`, want: "A\nB\nC\n"},
 		{desc: "map list 2", expr: `
 			set makeUpper (proc { |x| $x | toUpper })
 
 			map ["a" "b" "c"] $makeUpper 
-			`, want: "[A B C]\n"},
+			`, want: "A\nB\nC\n"},
 		{desc: "map list with pipe", expr: `
 			set makeUpper (proc { |x| $x | toUpper })
 
 			["a" "b" "c"] | map $makeUpper 
-			`, want: "[A B C]\n"},
+			`, want: "A\nB\nC\n"},
 		{desc: "map list with block", expr: `
 			map ["a" "b" "c"] { |x| toUpper $x } 
-			`, want: "[A B C]\n"},
+			`, want: "A\nB\nC\n"},
 		{desc: "map list with stream", expr: `
 			set makeUpper (proc { |x| toUpper $x })