// Occurs due to tag ending '>', and valueless attribute.
		c.state = stateTag
		return c, i
	}
	c.state = stateBeforeValue
	// Consume the "=".
	return c, i + 1
}

var attrStartStates = [...]state{
	attrNone:       stateAttr,
	attrScript:     stateJS,
	attrScriptType: stateAttr,
	attrStyle:      stateCSS,
	attrURL:        stateURL,
	attrSrcset:     stateSrcset,
}

	case stateTag:
		// In `<foo {{.}}`, the action should emit an attribute.
		c.state = stateAttrName
	case stateBeforeValue:
		// In `<foo bar={{.}}`, the action is an undelimited value.
		c.state, c.delim, c.attr = attrStartStates[c.attr], delimSpaceOrTagEnd, attrNone
	case stateAfterName:
		// In `<foo bar {{.}}`, the action is an attribute name.
		c.state, c.attr = stateAttrName, attrNone
	}
	return c
}