/
token.go
53 lines (42 loc) · 1020 Bytes
/
token.go
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package xmlparse
import (
"encoding/xml"
"strings"
)
// TokenHandler handler for fb2 tokens.
type TokenHandler func(interface{}, xml.StartElement, TokenReader) error
// TokenReader token reader interface.
type TokenReader interface {
xml.TokenReader
}
// TokenSkip skips current token at reader.
func TokenSkip(tokenName string, reader TokenReader) (err error) {
var token xml.Token
for {
if token, err = reader.Token(); err != nil {
break
}
if elem, ok := token.(xml.EndElement); ok && elem.Name.Local == tokenName {
break
}
}
return
}
// TokenRead returns xml token inner content.
func TokenRead(tokenName string, reader TokenReader) (res string, err error) {
var token xml.Token
var buf strings.Builder
for {
if token, err = reader.Token(); err != nil {
return
}
switch typedToken := token.(type) {
case xml.CharData:
buf.Write(typedToken)
case xml.EndElement:
if typedToken.Name.Local == tokenName {
return strings.TrimSpace(buf.String()), nil
}
}
}
}