function enclosedBefore(code) {
    if (code === codes.greaterThan) {
      effects.enter(literalMarkerType)
      effects.consume(code)
      effects.exit(literalMarkerType)
      effects.exit(literalType)
      effects.exit(type)
      return ok
    }

    effects.enter(stringType)
    effects.enter(types.chunkString, {contentType: constants.contentTypeString})
    return enclosed(code)
  }
After `<`, at an enclosed destination.

```markdown
> | <aa>
     ^
```

@type {State}