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package vcard_test
import (
"io"
"log"
"os"
"strings"
"github.com/emersion/go-vcard"
)
func ExampleNewDecoder() {
f, err := os.Open("cards.vcf")
if err != nil {
log.Fatal(err)
}
defer f.Close()
dec := vcard.NewDecoder(f)
for {
card, err := dec.Decode()
if err == io.EOF {
break
} else if err != nil {
log.Fatal(err)
}
log.Println(card.PreferredValue(vcard.FieldFormattedName))
}
}
// encoding a vcard can be done as follows
func ExampleNewEncoder() {
destFile, err := os.Create("cards.vcf")
if err != nil {
log.Fatal(err)
}
defer destFile.Close()
// data in order: first name, middle name, last name, telephone number
contacts := [][4]string{
{"John", "Webber", "Maxwell", "(+1) 199 8714"},
{"Donald", "", "Ron", "(+44) 421 8913"},
{"Eric", "E.", "Peter", "(+37) 221 9903"},
{"Nelson", "D.", "Patrick", "(+1) 122 8810"},
}
var (
// card is a map of strings to []*vcard.Field objects
card = make(vcard.Card)
// destination where the vcard will be encoded to
enc = vcard.NewEncoder(destFile)
)
for _, entry := range contacts {
// set only the value of a field by using card.SetValue.
// This does not set parameters
card.SetValue(vcard.FieldFormattedName, strings.Join(entry[:3], " "))
card.SetValue(vcard.FieldTelephone, entry[3])
// set the value of a field and other parameters by using card.Set
card.Set(vcard.FieldName, &vcard.Field{
Value: strings.Join(entry[:3], ";"),
Params: map[string][]string{
vcard.ParamSortAs: []string{
entry[0] + " " + entry[2],
},
},
})
// make the vCard version 4 compliant
vcard.ToV4(card)
err := enc.Encode(card)
if err != nil {
log.Fatal(err)
}
}
}
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