function tagOpenAttributeValueUnquoted(code) {
    if (
      code === codes.eof ||
      code === codes.quotationMark ||
      code === codes.apostrophe ||
      code === codes.lessThan ||
      code === codes.equalsTo ||
      code === codes.graveAccent
    ) {
      return nok(code)
    }

    if (
      code === codes.slash ||
      code === codes.greaterThan ||
      markdownLineEndingOrSpace(code)
    ) {
      return tagOpenBetween(code)
    }

    effects.consume(code)
    return tagOpenAttributeValueUnquoted
  }
In unquoted attribute value.

```markdown
> | a <b c=d> e
           ^
```

@type {State}