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package filter
import (
"github.com/Necoro/gofeed"
"github.com/antonmedv/expr"
"github.com/antonmedv/expr/vm"
)
type Filter struct {
prog *vm.Program
}
func (f *Filter) Run(item *gofeed.Item) (bool, error) {
if res, err := expr.Run(f.prog, item); err != nil {
return false, err
} else {
return res.(bool), nil
}
}
func New(s string) (*Filter, error) {
prog, err := expr.Compile(s, expr.AsBool(), expr.Env(gofeed.Item{}))
if err != nil {
return nil, err
}
return &Filter{prog}, nil
}
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