/
table.go
126 lines (104 loc) · 2.72 KB
/
table.go
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/*
This source file is a modified version of what was taken from the amazing bettercap (https://github.com/bettercap/bettercap) project.
Credits go to Simone Margaritelli (@evilsocket) for providing awesome piece of code!
*/
package core
import (
"fmt"
"regexp"
"strings"
"unicode/utf8"
"github.com/fatih/color"
)
func viewLen(s string) int {
var ansi = regexp.MustCompile("\033\\[(?:[0-9]{1,3}(?:;[0-9]{1,3})*)?[m|K]")
for _, m := range ansi.FindAllString(s, -1) {
s = strings.Replace(s, m, "", -1)
}
return utf8.RuneCountInString(s)
}
func maxLen(strings []string) int {
maxLen := 0
for _, s := range strings {
len := viewLen(s)
if len > maxLen {
maxLen = len
}
}
return maxLen
}
type Alignment int
const (
AlignLeft = Alignment(0)
AlignCenter = Alignment(1)
AlignRight = Alignment(2)
)
func getPads(s string, maxLen int, align Alignment) (lPad int, rPad int) {
len := viewLen(s)
diff := maxLen - len
if align == AlignLeft {
lPad = 0
rPad = diff - lPad + 1
} else if align == AlignCenter {
lPad = diff / 2
rPad = diff - lPad + 1
} else if align == AlignRight {
lPad = diff + 1
rPad = 0
}
return
}
func padded(s string, maxLen int, align Alignment) string {
lPad, rPad := getPads(s, maxLen, align)
return fmt.Sprintf("%s%s%s", strings.Repeat(" ", lPad), s, strings.Repeat(" ", rPad))
}
func AsTable(columns []string, rows [][]string) string {
dg := color.New(color.FgHiBlack)
for i, col := range columns {
columns[i] = fmt.Sprintf(" %s ", col)
}
for i, row := range rows {
for j, cell := range row {
rows[i][j] = fmt.Sprintf(" %s ", cell)
}
}
colPaddings := make([]int, 0)
lineSep := ""
for colIndex, colHeader := range columns {
column := []string{colHeader}
for _, row := range rows {
column = append(column, row[colIndex])
}
mLen := maxLen(column)
colPaddings = append(colPaddings, mLen)
lineSep += fmt.Sprintf("+%s", strings.Repeat("-", mLen+1))
}
lineSep += "+"
table := ""
// header
table += dg.Sprintf("%s\n", lineSep)
for colIndex, colHeader := range columns {
table += dg.Sprintf("|") + fmt.Sprintf("%s", padded(colHeader, colPaddings[colIndex], AlignCenter))
}
table += dg.Sprintf("|\n")
table += dg.Sprintf("%s\n", lineSep)
// rows
for _, row := range rows {
for colIndex, cell := range row {
table += dg.Sprintf("|") + fmt.Sprintf("%s", padded(cell, colPaddings[colIndex], AlignLeft))
}
table += dg.Sprintf("|\n")
}
// footer
table += dg.Sprintf(lineSep) + "\n"
return table
}
func AsRows(keys []string, vals []string) string {
clr := color.New(color.FgHiBlack)
mLen := maxLen(keys)
var table string
for i, _ := range keys {
table += clr.Sprintf("%s : ", padded(keys[i], mLen, AlignRight)) + fmt.Sprintf("%s\n", vals[i])
}
return table
}