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// Copyright 2014 Oleku Konko All rights reserved.
// Use of this source code is governed by a MIT
// license that can be found in the LICENSE file.
// This module is a Table Writer API for the Go Programming Language.
// The protocols were written in pure Go and works on windows and unix systems
package tablewriter
import (
"math"
"regexp"
"strings"
"github.com/mattn/go-runewidth"
)
var ansi = regexp.MustCompile("\033\\[(?:[0-9]{1,3}(?:;[0-9]{1,3})*)?[m|K]")
func DisplayWidth(str string) int {
return runewidth.StringWidth(ansi.ReplaceAllLiteralString(str, ""))
}
// Simple Condition for string
// Returns value based on condition
func ConditionString(cond bool, valid, inValid string) string {
if cond {
return valid
}
return inValid
}
func isNumOrSpace(r rune) bool {
return ('0' <= r && r <= '9') || r == ' '
}
// Format Table Header
// Replace _ , . and spaces
func Title(name string) string {
origLen := len(name)
rs := []rune(name)
for i, r := range rs {
switch r {
case '_':
rs[i] = ' '
case '.':
// ignore floating number 0.0
if (i != 0 && !isNumOrSpace(rs[i-1])) || (i != len(rs)-1 && !isNumOrSpace(rs[i+1])) {
rs[i] = ' '
}
}
}
name = string(rs)
name = strings.TrimSpace(name)
if len(name) == 0 && origLen > 0 {
// Keep at least one character. This is important to preserve
// empty lines in multi-line headers/footers.
name = " "
}
return strings.ToUpper(name)
}
// Pad String
// Attempts to place string in the center
func Pad(s, pad string, width int) string {
gap := width - DisplayWidth(s)
if gap > 0 {
gapLeft := int(math.Ceil(float64(gap / 2)))
gapRight := gap - gapLeft
return strings.Repeat(string(pad), gapLeft) + s + strings.Repeat(string(pad), gapRight)
}
return s
}
// Pad String Right position
// This would place string at the left side of the screen
func PadRight(s, pad string, width int) string {
gap := width - DisplayWidth(s)
if gap > 0 {
return s + strings.Repeat(string(pad), gap)
}
return s
}
// Pad String Left position
// This would place string at the right side of the screen
func PadLeft(s, pad string, width int) string {
gap := width - DisplayWidth(s)
if gap > 0 {
return strings.Repeat(string(pad), gap) + s
}
return s
}
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