/
table.go
130 lines (124 loc) · 2.62 KB
/
table.go
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package ffmt
import (
"fmt"
"reflect"
"strings"
"unicode"
)
// ToTable Data to table data
func ToTable(t interface{}, is ...interface{}) [][]string {
r := make([][]string, len(is)+1)
val := reflect.ValueOf(t)
val = reflect.Indirect(val)
typ := val.Type()
switch val.Kind() {
case reflect.Struct:
for i := 0; i != val.NumField(); i++ {
r[0] = append(r[0], typ.Field(i).Name)
}
case reflect.Map:
ks := val.MapKeys()
valueSlice(ks).Sort()
for i := 0; i != len(ks); i++ {
m := ks[i]
if m.Kind() == reflect.Ptr || m.Kind() == reflect.Interface {
m = m.Elem()
}
if m.CanInterface() {
r[0] = append(r[0], fmt.Sprint(m.Interface()))
}
}
default:
return nil
}
for k, v := range is {
val0 := reflect.ValueOf(v)
val0 = reflect.Indirect(val0)
switch val0.Kind() {
case reflect.Struct:
for i := 0; i != len(r[0]); i++ {
field := val0.FieldByName(r[0][i])
if field.CanInterface() {
r[k+1] = append(r[k+1], fmt.Sprint(field.Interface()))
}
}
case reflect.Map:
for i := 0; i != len(r[0]); i++ {
vv := val0.MapIndex(reflect.ValueOf(r[0][i]))
if vv.IsValid() {
r[k+1] = append(r[k+1], fmt.Sprint(vv))
} else {
r[k+1] = append(r[k+1], "")
}
}
default:
return nil
}
}
return r
}
// FmtTable Format table data
func FmtTable(b [][]string) (ss []string) {
maxs := []int{}
for _, v1 := range b {
for k, v2 := range v1 {
if len(maxs) == k {
maxs = append(maxs, 0)
}
if b := strLen(v2); maxs[k] < b {
maxs[k] = b
}
}
}
buf := getBuilder()
for _, v1 := range b {
buf.Reset()
for k, v2 := range v1 {
buf.WriteString(v2)
ps := maxs[k] - strLen(v2) + 1
for i := 0; i != ps; i++ {
buf.WriteByte(' ')
}
}
ss = append(ss, buf.String())
}
putBuilder(buf)
return
}
// TableText table text
func TableText(b string, prefix, split string) string {
rows := []string{}
table := [][]string{}
for _, v := range strings.Split(b, "\n") {
if prefix != "" && !strings.HasPrefix(v, prefix) {
if len(table) != 0 {
for _, v := range FmtTable(table) {
rows = append(rows, v)
}
table = table[:0]
}
rows = append(rows, v)
continue
}
row := []string{}
ss := strings.Split(v, split)
for i, col := range ss {
if i == 0 {
row = append(row, strings.TrimRightFunc(col, unicode.IsSpace))
} else {
row = append(row, strings.TrimFunc(col, unicode.IsSpace))
}
if i != len(ss)-1 {
row[i] = row[i] + split
}
}
table = append(table, row)
}
if len(table) != 0 {
for _, v := range FmtTable(table) {
rows = append(rows, v)
}
}
ret := strings.Join(rows, "\n")
return ret
}