# "enforce-isprint" Rule
Enforces any hardcoded string or ISML expression to be wrapped in a `` tag.
## Known Bug
"enforce-isprint" has a known bug that will be fixed only on version 6.0.0, as it will introduce breaking changes.
## Notes
- This rule does **not** dependent on abstract tree build;
## Configuration
No configuration is available for this rule. Check the [Generic Configurations for Rules][generic-config].
## Examples
```js
"enforce-isprint": {}
```
For the above configuration, the following scenarios may happen:
```
${price} // Invalid;
```
```
// Valid;
```
[generic-config]: <../generic-rule-config.md>