From d0fe5131ad7d641b0e6b73e3e579fa0755ff10a6 Mon Sep 17 00:00:00 2001
From: Inhere <in.798@qq.com>
Date: Mon, 29 Aug 2022 22:13:06 +0800
Subject: [PATCH] chore: update some comments code styles

---
 .github/workflows/go.yml |  2 +-
 color.go                 | 23 ++++++++++++++------
 color_test.go            | 15 +++++++------
 detect_windows.go        | 46 +++++++++++++++++++++++-----------------
 go.mod                   |  2 +-
 issues_test.go           | 26 +++++++++++++++++++++++
 utils.go                 |  2 ++
 7 files changed, 82 insertions(+), 34 deletions(-)
 create mode 100644 issues_test.go

diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index c0a528f..06f74a8 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go_version: [1.15, 1.16, 1.17, 1.18]
+        go_version: [1.16, 1.17, 1.18, 1.19]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
diff --git a/color.go b/color.go
index 29eb284..59e0b0b 100644
--- a/color.go
+++ b/color.go
@@ -15,6 +15,7 @@ import (
 	"io"
 	"os"
 	"regexp"
+	"strings"
 
 	"github.com/xo/terminfo"
 )
@@ -22,7 +23,8 @@ import (
 // color render templates
 //
 // ESC 操作的表示:
-// 	"\033"(Octal 8进制) = "\x1b"(Hexadecimal 16进制) = 27 (10进制)
+//
+//	"\033"(Octal 8进制) = "\x1b"(Hexadecimal 16进制) = 27 (10进制)
 const (
 	// StartSet chars
 	StartSet = "\x1b["
@@ -32,6 +34,8 @@ const (
 	SettingTpl = "\x1b[%sm"
 	// FullColorTpl for build color code
 	FullColorTpl = "\x1b[%sm%s\x1b[0m"
+	// CodeSuffix string for color code.
+	CodeSuffix = "[0m"
 )
 
 // CodeExpr regex to clear color codes eg "\033[1;36mText\x1b[0m"
@@ -60,7 +64,7 @@ var (
 	// if not in windows, it's always False.
 	isLikeInCmd bool
 	// the color support level for current terminal
-	// needVTP - need enable VTP, only for windows OS
+	// needVTP - need enable VTP, only for Windows OS
 	colorLevel, needVTP = detectTermColorLevel()
 	// match color codes
 	codeRegex = regexp.MustCompile(CodeExpr)
@@ -159,7 +163,8 @@ func ForceOpenColor() terminfo.ColorLevel {
 }
 
 // IsLikeInCmd check result
-// Deprecated
+//
+// Deprecated: please don't use
 func IsLikeInCmd() bool {
 	return isLikeInCmd
 }
@@ -176,7 +181,8 @@ func InnerErrs() []error {
 // RenderCode render message by color code.
 //
 // Usage:
-// 	msg := RenderCode("3;32;45", "some", "message")
+//
+//	msg := RenderCode("3;32;45", "some", "message")
 func RenderCode(code string, args ...interface{}) string {
 	var message string
 	if ln := len(args); ln == 0 {
@@ -216,7 +222,8 @@ func RenderWithSpaces(code string, args ...interface{}) string {
 // RenderString render a string with color code.
 //
 // Usage:
-// 	msg := RenderString("3;32;45", "a message")
+//
+//	msg := RenderString("3;32;45", "a message")
 func RenderString(code string, str string) string {
 	if len(code) == 0 || str == "" {
 		return str
@@ -234,7 +241,11 @@ func RenderString(code string, str string) string {
 // ClearCode clear color codes.
 //
 // eg:
-// 	"\033[36;1mText\x1b[0m" -> "Text"
+//
+//	"\033[36;1mText\x1b[0m" -> "Text"
 func ClearCode(str string) string {
+	if !strings.Contains(str, CodeSuffix) {
+		return str
+	}
 	return codeRegex.ReplaceAllString(str, "")
 }
diff --git a/color_test.go b/color_test.go
index af20889..08c7abb 100644
--- a/color_test.go
+++ b/color_test.go
@@ -3,7 +3,6 @@ package color
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"runtime"
 	"strings"
@@ -202,13 +201,15 @@ func TestRenderCode(t *testing.T) {
 }
 
 func TestClearCode(t *testing.T) {
-	art := assert.New(t)
-	art.Equal("Text", ClearCode("\033[36;1mText\x1b[0m"))
+	is := assert.New(t)
+
+	is.Equal("Text", ClearCode("Text"))
+	is.Equal("Text", ClearCode("\033[36;1mText\x1b[0m"))
 	// 8bit
-	art.Equal("Text", ClearCode("\x1b[38;5;242mText\x1b[0m"))
+	is.Equal("Text", ClearCode("\x1b[38;5;242mText\x1b[0m"))
 	// 24bit
-	art.Equal("Text", ClearCode("\x1b[38;2;30;144;255mText\x1b[0m"))
-	art.Equal("Text other", ClearCode("\033[36;1mText\x1b[0m other"))
+	is.Equal("Text", ClearCode("\x1b[38;2;30;144;255mText\x1b[0m"))
+	is.Equal("Text other", ClearCode("\033[36;1mText\x1b[0m other"))
 }
 
 /*************************************************************
@@ -707,6 +708,7 @@ func resetColorRender() {
 	ResetOutput()
 }
 
+/*
 var oldStdout, newReader *os.File
 
 // Usage:
@@ -741,6 +743,7 @@ func restoreStdout() string {
 
 	return string(out)
 }
+*/
 
 // mockEnvValue will store old env value, set new val. will restore old value on end.
 func mockEnvValue(key, val string, fn func(nv string)) {
diff --git a/detect_windows.go b/detect_windows.go
index dea671d..df538b2 100644
--- a/detect_windows.go
+++ b/detect_windows.go
@@ -1,11 +1,13 @@
 //go:build windows
 // +build windows
 
-// Display color on windows
+// Display color on Windows
+//
 // refer:
-//  golang.org/x/sys/windows
-// 	golang.org/x/crypto/ssh/terminal
-// 	https://docs.microsoft.com/en-us/windows/console
+//
+//	golang.org/x/sys/windows
+//	golang.org/x/crypto/ssh/terminal
+//	https://docs.microsoft.com/en-us/windows/console
 package color
 
 import (
@@ -39,7 +41,7 @@ func init() {
 		return
 	}
 
-	// if at windows's ConEmu, Cmder, putty ... terminals not need VTP
+	// if at Windows's ConEmu, Cmder, putty ... terminals not need VTP
 
 	// -------- try force enable colors on windows terminal -------
 	tryEnableVTP(needVTP)
@@ -48,7 +50,7 @@ func init() {
 	// err := getConsoleScreenBufferInfo(uintptr(syscall.Stdout), &defScreenInfo)
 }
 
-// try force enable colors on windows terminal
+// try force enable colors on Windows terminal
 func tryEnableVTP(enable bool) bool {
 	if !enable {
 		return false
@@ -58,7 +60,7 @@ func tryEnableVTP(enable bool) bool {
 
 	initKernel32Proc()
 
-	// enable colors on windows terminal
+	// enable colors on Windows terminal
 	if tryEnableOnCONOUT() {
 		return true
 	}
@@ -71,7 +73,7 @@ func initKernel32Proc() {
 		return
 	}
 
-	// load related windows dll
+	// load related Windows dll
 	// https://docs.microsoft.com/en-us/windows/console/setconsolemode
 	kernel32 = syscall.NewLazyDLL("kernel32.dll")
 
@@ -112,8 +114,10 @@ var (
 )
 
 // refer
-//  https://github.com/Delta456/box-cli-maker/blob/7b5a1ad8a016ce181e7d8b05e24b54ff60b4b38a/detect_windows.go#L30-L57
-//  https://github.com/gookit/color/issues/25#issuecomment-738727917
+//
+//	https://github.com/Delta456/box-cli-maker/blob/7b5a1ad8a016ce181e7d8b05e24b54ff60b4b38a/detect_windows.go#L30-L57
+//	https://github.com/gookit/color/issues/25#issuecomment-738727917
+//
 // detects the color level supported on Windows: cmd, powerShell
 func detectSpecialTermColor(termVal string) (tl Level, needVTP bool) {
 	if os.Getenv("ConEmuANSI") == "ON" {
@@ -131,7 +135,7 @@ func detectSpecialTermColor(termVal string) (tl Level, needVTP bool) {
 		// Detect if using ANSICON on older systems
 		if os.Getenv("ANSICON") != "" {
 			conVersion := os.Getenv("ANSICON_VER")
-			// 8 bit Colors were only supported after v1.81 release
+			// 8-bit Colors were only supported after v1.81 release
 			if conVersion >= "181" {
 				return terminfo.ColorLevelHundreds, false
 			}
@@ -141,7 +145,7 @@ func detectSpecialTermColor(termVal string) (tl Level, needVTP bool) {
 		return terminfo.ColorLevelNone, false
 	}
 
-	// True Color is not available before build 14931 so fallback to 8 bit color.
+	// True Color is not available before build 14931 so fallback to 8-bit color.
 	if buildNumber < 14931 {
 		return terminfo.ColorLevelHundreds, true
 	}
@@ -152,7 +156,7 @@ func detectSpecialTermColor(termVal string) (tl Level, needVTP bool) {
 }
 
 /*************************************************************
- * render full color code on windows(8,16,24bit color)
+ * render full color code on Windows(8,16,24bit color)
  *************************************************************/
 
 // docs https://docs.microsoft.com/zh-cn/windows/console/getconsolemode#parameters
@@ -167,9 +171,10 @@ const (
 // doc https://docs.microsoft.com/zh-cn/windows/console/console-virtual-terminal-sequences#samples
 //
 // Usage:
-// 	err := EnableVirtualTerminalProcessing(syscall.Stdout, true)
-// 	// support print color text
-// 	err = EnableVirtualTerminalProcessing(syscall.Stdout, false)
+//
+//	err := EnableVirtualTerminalProcessing(syscall.Stdout, true)
+//	// support print color text
+//	err = EnableVirtualTerminalProcessing(syscall.Stdout, false)
 func EnableVirtualTerminalProcessing(stream syscall.Handle, enable bool) error {
 	var mode uint32
 	// Check if it is currently in the terminal
@@ -217,7 +222,7 @@ func EnableVirtualTerminalProcessing(stream syscall.Handle, enable bool) error {
 // }
 
 /*************************************************************
- * render simple color code on windows
+ * render simple color code on Windows
  *************************************************************/
 
 // IsTty returns true if the given file descriptor is a terminal.
@@ -232,9 +237,10 @@ func IsTty(fd uintptr) bool {
 // IsTerminal returns true if the given file descriptor is a terminal.
 //
 // Usage:
-// 	fd := os.Stdout.Fd()
-// 	fd := uintptr(syscall.Stdout) // for windows
-// 	IsTerminal(fd)
+//
+//	fd := os.Stdout.Fd()
+//	fd := uintptr(syscall.Stdout) // for Windows
+//	IsTerminal(fd)
 func IsTerminal(fd uintptr) bool {
 	initKernel32Proc()
 
diff --git a/go.mod b/go.mod
index bf64ac8..e911ba1 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/gookit/color
 
-go 1.15
+go 1.16
 
 require (
 	github.com/stretchr/testify v1.8.0
diff --git a/issues_test.go b/issues_test.go
new file mode 100644
index 0000000..74d78e2
--- /dev/null
+++ b/issues_test.go
@@ -0,0 +1,26 @@
+package color
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+// https://github.com/gookit/color/issues/51
+func TestIssues_51(t *testing.T) {
+	topBarRs := []rune{
+		9484, 32, 66, 111, 120, 32, 32, 32, 32, 32, 67, 76, 73, 32, 32, 32, 32, 32, 77, 97, 107, 101, 114, 32, 32, 32, 128230, 32, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472,
+		9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9472, 9488,
+	}
+
+	topBar := string(topBarRs)
+
+	titleRs := []rune{
+		66, 111, 120, 32, 32, 32, 67, 76, 73, 32, 32, 32, 32, 32, 77, 97, 107, 101, 114, 32, 32, 32, 128230,
+	}
+	title := string(titleRs)
+
+	fmt.Printf("topBar:\n%q\n%q\n", topBar, ClearCode(topBar))
+	fmt.Printf("title:\n%q\n%q\n", title, ClearCode(title))
+	fmt.Printf("Split:\n%#v\n", strings.Split(ClearCode(topBar), ClearCode(title)))
+}
diff --git a/utils.go b/utils.go
index d4bb78d..4554b27 100644
--- a/utils.go
+++ b/utils.go
@@ -47,6 +47,7 @@ func Println(a ...interface{}) {
 }
 
 // Fprint print rendered messages to writer
+//
 // Notice: will ignore print error
 func Fprint(w io.Writer, a ...interface{}) {
 	_, err := fmt.Fprint(w, Render(a...))
@@ -86,6 +87,7 @@ func Lprint(l *log.Logger, a ...interface{}) {
 // Render parse color tags, return rendered string.
 //
 // Usage:
+//
 //	text := Render("<info>hello</> <cyan>world</>!")
 //	fmt.Println(text)
 func Render(a ...interface{}) string {