elliotchance/gedcom

package html

import (
    "fmt"
    "io"
    "unicode"

    "github.com/elliotchance/gedcom/v39/html/core"
)

type SurnameLink struct {
    surname string
}

func NewSurnameLink(surname string) *SurnameLink {
    return &SurnameLink{
        surname: surname,
    }
}

func (c *SurnameLink) WriteHTMLTo(w io.Writer) (int64, error) {
    firstLetter := rune(c.surname[0])
    lowerFirstLetter := unicode.ToLower(firstLetter)
    destination := fmt.Sprintf("%s#%s", PageIndividuals(lowerFirstLetter), c.surname)

    return core.NewLink(core.NewText(c.surname), destination).WriteHTMLTo(w)
}