fix(writer): correct width calculation for emoji's

src/go.mod

@@ -35,6 +35,7 @@ require (
 	github.com/goccy/go-yaml v1.11.3
 	github.com/gookit/goutil v0.6.16
 	github.com/hashicorp/hcl/v2 v2.21.0
+	github.com/mattn/go-runewidth v0.0.16
 	github.com/pelletier/go-toml/v2 v2.2.2
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
@@ -78,7 +79,6 @@ require (
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
-	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect

src/terminal/writer.go

@@ -4,14 +4,18 @@ import (
 	"fmt"
 	"os"
 	"strings"
-	"unicode/utf8"
 
 	"github.com/jandedobbeleer/oh-my-posh/src/color"
 	"github.com/jandedobbeleer/oh-my-posh/src/log"
 	"github.com/jandedobbeleer/oh-my-posh/src/regex"
 	"github.com/jandedobbeleer/oh-my-posh/src/shell"
+	"github.com/mattn/go-runewidth"
 )
 
+func init() {
+	runewidth.DefaultCondition.EastAsianWidth = false
+}
+
 type style struct {
 	AnchorStart string
 	AnchorEnd   string
@@ -396,7 +400,8 @@ func write(s rune) {
 		}
 	}
 
-	length += utf8.RuneCountInString(string(s))
+	// length += utf8.RuneCountInString(string(s))
+	length += runewidth.RuneWidth(s)
 	lastRune = s
 	builder.WriteRune(s)
 }

src/terminal/writer_test.go

@@ -246,7 +246,7 @@ func TestWriteLength(t *testing.T) {
 		{
 			Case:     "Emoji",
 			Input:    " ⏰  ",
-			Expected: 4,
+			Expected: 5,
 			Colors:   &color.Set{Foreground: "black", Background: color.ParentBackground},
 		},
 		{