Merge 7eb6dc1 into 830641e

cmd/demo/demo.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"fmt"
+	"github.com/jedib0t/go-pretty/text"
+	"github.com/jedib0t/go-pretty/util"
+)
+
+func main() {
+	fmt.Printf("%#v\n", text.FgRed.Sprint("Red"))
+	fmt.Printf("%s\n", text.FgRed.Sprint("Red"))
+	fmt.Printf("%c[31mRed%c[0m\n", util.EscapeStartRune, util.EscapeStartRune)
+	fmt.Printf("Red\n")
+}

text/ansi.go

@@ -0,0 +1,4 @@
+package text
+
+// ANSISupported will be true on consoles where ANSI Sequences are supported.
+var ANSISupported = isANSISupported()

text/color.go

@@ -142,7 +142,7 @@ func (c Colors) Sprintf(format string, a ...interface{}) string {
 }
 
 func colorize(s string, escapeSeq string) string {
-	if escapeSeq == "" {
+	if !ANSISupported || escapeSeq == "" {
 		return s
 	}
 

text/color_unix.go

@@ -0,0 +1,7 @@
+// +build !windows
+
+package text
+
+func isANSISupported() bool {
+	return true
+}

text/color_windows.go

@@ -0,0 +1,23 @@
+// +build windows
+
+package text
+
+import (
+	"os"
+
+	"golang.org/x/sys/windows"
+)
+
+func isANSISupported() bool {
+	outHandle := windows.Handle(os.Stdout.Fd())
+	var outMode uint32
+	if err := windows.GetConsoleMode(outHandle, &outMode); err == nil {
+		if outMode&windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != 0 {
+			return true
+		}
+		if err := windows.SetConsoleMode(outHandle, outMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING); err == nil {
+			return true
+		}
+	}
+	return false
+}