Add search expression support to admin interface

pkg/search/parser.go

@@ -9,10 +9,10 @@ type precedence int
 const (
 	_ precedence = iota
 	precLowest
-	precEq
 	precAnd
 	precOr
 	precNot
+	precEq
 	precLessGreater
 	precPrefix
 	precGroup
@@ -86,7 +86,7 @@ func ParseQuery(input string) (expr Expression, err error) {
 	p.nextToken()
 
 	if p.curTokenIs(TokEOF) {
-		return nil, fmt.Errorf("unexpected EOF")
+		return nil, fmt.Errorf("search: unexpected EOF")
 	}
 
 	for !p.curTokenIs(TokEOF) {

pkg/search/parser_test.go

@@ -17,7 +17,7 @@ func TestParseQuery(t *testing.T) {
 			name:               "empty query",
 			input:              "",
 			expectedExpression: nil,
-			expectedError:      errors.New("unexpected EOF"),
+			expectedError:      errors.New("search: unexpected EOF"),
 		},
 		{
 			name:               "string literal expression",
@@ -199,6 +199,24 @@ func TestParseQuery(t *testing.T) {
 			},
 			expectedError: nil,
 		},
+		{
+			name:  "eq operator takes precedence over boolean ops",
+			input: "foo=bar OR baz=yolo",
+			expectedExpression: &InfixExpression{
+				Operator: TokOpOr,
+				Left: &InfixExpression{
+					Operator: TokOpEq,
+					Left:     &StringLiteral{Value: "foo"},
+					Right:    &StringLiteral{Value: "bar"},
+				},
+				Right: &InfixExpression{
+					Operator: TokOpEq,
+					Left:     &StringLiteral{Value: "baz"},
+					Right:    &StringLiteral{Value: "yolo"},
+				},
+			},
+			expectedError: nil,
+		},
 	}
 
 	for _, tt := range tests {