func RenderTemplateFile(filename string, data interface{}, out io.Writer) error {
rootNode, err := parseFile(filename)
if err != nil {
return err
}
cont := makeContext(data, nil)
template := goquery.NewDocumentFromNode(rootNode).Find("html") // wrap goquery around the DOM
handleGatsRemoves(template) // take out everything that definitely won't be shown
err = handleGatsTranscludes(template) // transclude in all the sub-templates
if err != nil {
return err
}
err = fillInTemplate(template, cont) // process the template
handleGatsOmitTag(template) // make sure this one comes last, it can interfere with other attributes
if err == nil {
html.Render(out, rootNode) // render the DOM back to html and send it off
}
return err
}
func handleGatsTranscludes(scope *goquery.Selection) (result error) {
for scope.Find("[gatstransclude]").Length() > 0 && result == nil {
handleGats(scope, "[gatstransclude]", func(ts string, sel *goquery.Selection) {
if result != nil {
return
}
filename, selector, res := splitString(ts)
if res != nil {
result = res
return
}
rootNode, res := parseFile(filename)
if res != nil {
result = res
return
}
newKids := goquery.NewDocumentFromNode(rootNode).Find(selector)
sel.Empty().Append(newKids)
})
}
return result
}