func LessThanNil(x interface{}) px.Parser {
return func(st px.ParsexState) (interface{}, error) {
val, _ := px.AnyOne(st)
if x == nil || val == nil {
return false, nil
}
return nil, ParsexSignErrorf("except nil value but: %v", val)
}
}
func TimeValue(st px.ParsexState) (interface{}, error) {
val, err := px.AnyOne(st)
if err == nil {
if _, ok := val.(tm.Time); ok {
return val, nil
}
return nil, ParsexSignErrorf("except a time value but: %v", err)
}
return nil, ParsexSignErrorf("except a time value but error: %v", err)
}
func ListValue(st px.ParsexState) (interface{}, error) {
val, err := px.AnyOne(st)
if err == nil {
if _, ok := val.(List); ok {
return val, nil
}
return nil, ParsexSignErrorf("except a list value but %v ", val)
}
return nil, ParsexSignErrorf("except a list value but error: %v", err)
}
func FalseIfHasNil(st px.ParsexState) (interface{}, error) {
for {
val, err := px.AnyOne(st)
if err != nil {
if err == io.EOF {
return nil, fmt.Errorf("False If Nil Error: Found EOF.")
}
return nil, err
}
if val == nil {
return false, err
}
}
}