elliotchance/gedcom

package core

import (
    "io"
    "reflect"
)

// Components is a wrapper for zero more components that rendered at the same
// time.
type Components struct {
    items []Component
}

func NewComponents(items ...Component) *Components {
    nonNilItems := []Component{}

    for _, item := range items {
        if !reflect.ValueOf(item).IsNil() {
            nonNilItems = append(nonNilItems, item)
        }
    }

    return &Components{
        items: nonNilItems,
    }
}

func (c *Components) WriteHTMLTo(w io.Writer) (int64, error) {
    n := int64(0)
    for _, item := range c.items {
        n += appendComponent(w, item)
    }

    return n, nil
}