color support for cli client

README.md

@@ -83,4 +83,4 @@ Other fonts can mainly be found on [figlet](http://www.figlet.org). You have to
 - [x] Cli client
 - [ ] automatic the perfect char margin
 - [ ] Linebreak possible?
-- [ ] Colors in the cli client
+- [x] Colors in the cli client

cmd/figlet4go/figlet4go.go

@@ -1,18 +1,20 @@
 package main
 
 import (
-	"fmt"
-	"flag"
-	"log"
 	"errors"
-	_"github.com/fatih/color"
+	"flag"
+	"fmt"
+	"github.com/fatih/color"
 	"github.com/probandula/figlet4go"
+	"log"
+	"strings"
 )
 
 var (
 	str      *string = flag.String("str", "", "String to be converted with FIGlet")
 	font     *string = flag.String("font", "", "Font name to use")
 	fontpath *string = flag.String("fontpath", "", "Font path to load fonts from")
+	colors   *string = flag.String("colors", "", "Character colors seperated by ';'\n\tPossible colors: black, red, green, yellow, blue, magenta, cyan, white")
 )
 
 func main() {
@@ -37,6 +39,10 @@ func main() {
 	// Set the font
 	options.FontName = *font
 
+	// Set colors
+	if *colors != "" {
+		options.FontColor = getColorSlice(*colors)
+	}
 
 	// Render the string
 	renderStr, err := ascii.RenderOpts(*str, options)
@@ -47,6 +53,53 @@ func main() {
 	fmt.Println(renderStr)
 }
 
+// Get a slice with colors to give to the RenderOptions
+// Splits the given string with the seperator ";"
+func getColorSlice(colorStr string) []color.Attribute {
+
+	givenColors := strings.Split(colorStr, ";")
+
+	colors := make([]color.Attribute, len(givenColors))
+
+	for i, c := range givenColors {
+		if c == "black" {
+			colors[i] = color.FgBlack
+			continue
+		}
+		if c == "red" {
+			colors[i] = color.FgRed
+			continue
+		}
+		if c == "green" {
+			colors[i] = color.FgGreen
+			continue
+		}
+		if c == "yellow" {
+			colors[i] = color.FgYellow
+			continue
+		}
+		if c == "blue" {
+			colors[i] = color.FgBlue
+			continue
+		}
+		if c == "magenta" {
+			colors[i] = color.FgMagenta
+			continue
+		}
+		if c == "cyan" {
+			colors[i] = color.FgCyan
+			continue
+		}
+		if c == "white" {
+			colors[i] = color.FgWhite
+			continue
+		}
+	}
+
+	return colors
+
+}
+
 // Validate if all required options are given
 // flag.Parse() must be called before this
 func validate() error {