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package ace
import (
"fmt"
"io"
)
// Helper method names
const (
helperMethodNameConditionalComment = "conditionalComment"
helperMethodNameContent = "content"
helperMethodNameCSS = "css"
helperMethodNameDoctype = "doctype"
helperMethodNameYield = "yield"
helperMethodNameInclude = "include"
helperMethodNameJavascript = "javascript"
)
// element is an interface for storing an element.
type element interface {
io.WriterTo
AppendChild(child element)
ContainPlainText() bool
Base() *elementBase
CanHaveChildren() bool
InsertBr() bool
SetLastChild(lastChild bool)
}
// newElement creates and returns an element.
func newElement(ln *line, rslt *result, src *source, parent element, opts *Options) (element, error) {
var e element
var err error
switch {
case parent != nil && parent.ContainPlainText():
e = newPlainTextInner(ln, rslt, src, parent, parent.InsertBr(), opts)
case ln.isEmpty():
e = newEmptyElement(ln, rslt, src, parent, opts)
case ln.isComment():
e = newComment(ln, rslt, src, parent, opts)
case ln.isHTMLComment():
e = newHTMLComment(ln, rslt, src, parent, opts)
case ln.isHelperMethod():
switch {
case ln.isHelperMethodOf(helperMethodNameConditionalComment):
e, err = newHelperMethodConditionalComment(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameContent):
e, err = newHelperMethodContent(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameCSS):
e = newHelperMethodCSS(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameDoctype):
e, err = newHelperMethodDoctype(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameInclude):
e, err = newHelperMethodInclude(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameJavascript):
e = newHelperMethodJavascript(ln, rslt, src, parent, opts)
case ln.isHelperMethodOf(helperMethodNameYield):
e, err = newHelperMethodYield(ln, rslt, src, parent, opts)
default:
err = fmt.Errorf("the helper method name is invalid [file: %s][line: %d]", ln.fileName(), ln.no)
}
case ln.isPlainText():
e = newPlainText(ln, rslt, src, parent, opts)
case ln.isAction():
e = newAction(ln, rslt, src, parent, opts)
default:
e, err = newHTMLTag(ln, rslt, src, parent, opts)
}
return e, err
}
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