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package jpegstructure
import (
"bytes"
"fmt"
"sort"
"strings"
"github.com/dsoprea/go-logging"
"github.com/go-xmlfmt/xmlfmt"
)
// DumpBytes prints the hex for a given byte-slice.
func DumpBytes(data []byte) {
fmt.Printf("DUMP: ")
for _, x := range data {
fmt.Printf("%02x ", x)
}
fmt.Printf("\n")
}
// DumpBytesClause prints a Go-formatted byte-slice expression.
func DumpBytesClause(data []byte) {
fmt.Printf("DUMP: ")
fmt.Printf("[]byte { ")
for i, x := range data {
fmt.Printf("0x%02x", x)
if i < len(data)-1 {
fmt.Printf(", ")
}
}
fmt.Printf(" }\n")
}
// DumpBytesToString returns a string of hex-encoded bytes.
func DumpBytesToString(data []byte) string {
b := new(bytes.Buffer)
for i, x := range data {
_, err := b.WriteString(fmt.Sprintf("%02x", x))
log.PanicIf(err)
if i < len(data)-1 {
_, err := b.WriteRune(' ')
log.PanicIf(err)
}
}
return b.String()
}
// DumpBytesClauseToString returns a string of Go-formatted byte values.
func DumpBytesClauseToString(data []byte) string {
b := new(bytes.Buffer)
for i, x := range data {
_, err := b.WriteString(fmt.Sprintf("0x%02x", x))
log.PanicIf(err)
if i < len(data)-1 {
_, err := b.WriteString(", ")
log.PanicIf(err)
}
}
return b.String()
}
// FormatXml prettifies XML data.
func FormatXml(raw string) (formatted string, err error) {
defer func() {
if state := recover(); state != nil {
err = log.Wrap(state.(error))
}
}()
formatted = xmlfmt.FormatXML(raw, " ", " ")
formatted = strings.TrimSpace(formatted)
return formatted, nil
}
// SortStringStringMap sorts a string-string dictionary and returns it as a list
// of 2-tuples.
func SortStringStringMap(data map[string]string) (sorted [][2]string) {
// Sort keys.
sortedKeys := make([]string, len(data))
i := 0
for key := range data {
sortedKeys[i] = key
i++
}
sort.Strings(sortedKeys)
// Build result.
sorted = make([][2]string, len(sortedKeys))
for i, key := range sortedKeys {
sorted[i] = [2]string{key, data[key]}
}
return sorted
}
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