Added properties convert to numbers example #2023

pkg/yqlib/doc/usage/properties.md

@@ -230,6 +230,23 @@ person:
     - pizza
 ```
 
+## Decode properties: numbers
+All values are assumed to be strings when parsing properties, but you can use the `from_yaml` operator on all the strings values to autoparse into the correct type.
+
+Given a sample.properties file of:
+```properties
+a.b = 10
+```
+then
+```bash
+yq -p=props ' (.. | select(tag == "!!str")) |= from_yaml' sample.properties
+```
+will output
+```yaml
+a:
+  b: 10
+```
+
 ## Decode properties - array should be a map
 If you have a numeric map key in your property files, use array_to_map to convert them to maps.
 

pkg/yqlib/properties_test.go

@@ -227,7 +227,14 @@ var propertyScenarios = []formatScenario{
 		expected:     "- person\n- name\n",
 		scenarioType: "decode",
 	},
-
+	{
+		description:    "Decode properties: numbers",
+		subdescription: "All values are assumed to be strings when parsing properties, but you can use the `from_yaml` operator on all the strings values to autoparse into the correct type.",
+		input:          "a.b = 10",
+		expression:     " (.. | select(tag == \"!!str\")) |= from_yaml",
+		expected:       "a:\n  b: 10\n",
+		scenarioType:   "decode",
+	},
 	{
 		description:    "Decode properties - array should be a map",
 		subdescription: "If you have a numeric map key in your property files, use array_to_map to convert them to maps.",