// tagURLForParser implements a {% urlfor %} tag.
//
// urlfor takes one argument for the controller, as well as any number of key/value pairs for additional URL data.
// Example: {% urlfor "UserController.View" ":slug" "oal" %}
func tagAppendParser(doc *p2.Parser, start *p2.Token, arguments *p2.Parser) (p2.INodeTag, *p2.Error) {
var name string
var isPublic bool
// Parse variable name
typeToken := arguments.MatchType(p2.TokenIdentifier)
if typeToken != nil {
name = typeToken.Val
} else if sToken := arguments.MatchType(p2.TokenString); nil != sToken {
name = sToken.Val
} else {
return nil, arguments.Error("Expected an identifier or string.", nil)
}
evals := []p2.IEvaluator{}
for arguments.Remaining() > 0 {
expr, err := arguments.ParseExpression()
if err != nil {
return nil, err
}
evals = append(evals, expr)
}
// if len(evals) <= 0 {
// return nil, arguments.Error("URL takes one argument for the controller and any number of optional pairs of key/value pairs.", nil)
// }
return &tagAppendNode{isPublic, name, evals}, nil
}
// tagURLForParser implements a {% urlfor %} tag.
//
// urlfor takes one argument for the controller, as well as any number of key/value pairs for additional URL data.
// Example: {% urlfor "UserController.View" ":slug" "oal" %}
func tagURLForParser(doc *p2.Parser, start *p2.Token, arguments *p2.Parser) (p2.INodeTag, *p2.Error) {
evals := []p2.IEvaluator{}
for arguments.Remaining() > 0 {
expr, err := arguments.ParseExpression()
evals = append(evals, expr)
if err != nil {
return nil, err
}
}
if len(evals) <= 0 {
return nil, arguments.Error("URL takes one argument for the controller and any number of optional value.", nil)
}
return &tagURLForNode{evals}, nil
}