78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
package utils
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"sort"
|
|
"strings"
|
|
)
|
|
|
|
// PrintMap prints a map
|
|
func PrintMap(m interface{}) string {
|
|
var outputText string
|
|
|
|
v := reflect.ValueOf(m)
|
|
if v.Kind() != reflect.Map {
|
|
outputText = fmt.Sprintf("error while printing map\nreceived a %T\n %s\n", m, m)
|
|
} else {
|
|
|
|
keys := v.MapKeys()
|
|
var xs []string
|
|
|
|
for _, k := range keys {
|
|
xs = append(xs, fmt.Sprintf("[%s]=%s", k, v.MapIndex(k)))
|
|
}
|
|
|
|
sort.Strings(xs)
|
|
if len(xs) == 0 {
|
|
outputText = "len(map) == 0"
|
|
} else {
|
|
outputText = strings.Join(xs, "\n")
|
|
}
|
|
}
|
|
|
|
return outputText
|
|
}
|
|
|
|
// PrintArray prints an array
|
|
func PrintArray(m interface{}) string {
|
|
var outputText string
|
|
|
|
switch reflect.TypeOf(m).Kind() {
|
|
case reflect.Slice:
|
|
var xs []string
|
|
|
|
slice := reflect.ValueOf(m)
|
|
for i := 0; i < slice.Len(); i++ {
|
|
xs = append(xs, fmt.Sprintf("[%d]=%s", i, slice.Index(i)))
|
|
}
|
|
|
|
if len(xs) == 0 {
|
|
outputText = "len(array) == 0"
|
|
} else {
|
|
outputText = strings.Join(xs, "\n")
|
|
}
|
|
default:
|
|
outputText = fmt.Sprintf("error while printing array\nreceived a %T\n %s\n", m, m)
|
|
}
|
|
|
|
return outputText
|
|
}
|
|
|
|
// MapToString maps a collection to a string collection
|
|
func MapToString(collection interface{}, transform func(x interface{}) string) []string {
|
|
switch reflect.TypeOf(collection).Kind() {
|
|
case reflect.Slice:
|
|
var xs []string
|
|
|
|
slice := reflect.ValueOf(collection)
|
|
for i := 0; i < slice.Len(); i++ {
|
|
xs = append(xs, transform(slice.Index(i).Interface()))
|
|
}
|
|
|
|
return xs
|
|
default:
|
|
panic(fmt.Sprintf("error while mapping array to string\nreceived a %T\n %s\n", collection, collection))
|
|
}
|
|
}
|