fix(ansi): escape prompt sequences correctly

resolves #5090

src/ansi/ansi_writer.go

@@ -82,8 +82,10 @@ type Writer struct {
 	Colors             *Colors
 	ParentColors       []*Colors
 	AnsiColors         ColorString
-	Plain              bool
-	TrueColor          bool
+
+	Plain       bool
+	TrueColor   bool
+	Interactive bool
 
 	builder strings.Builder
 	length  int
@@ -111,6 +113,9 @@ type Writer struct {
 	osc7                  string
 	osc51                 string
 
+	lastRune        rune
+	escapeSequences map[rune]rune
+
 	hyperlinkStart  string
 	hyperlinkCenter string
 	hyperlinkEnd    string
@@ -144,6 +149,10 @@ func (w *Writer) Init(shellName string) {
 		w.iTermPromptMark = "\\[$(iterm2_prompt_mark)\\]"
 		w.iTermCurrentDir = "\\[\x1b]1337;CurrentDir=%s\x07\\]"
 		w.iTermRemoteHost = "\\[\x1b]1337;RemoteHost=%s@%s\x07\\]"
+		w.escapeSequences = map[rune]rune{
+			96: 92, // backtick
+			92: 92, // backslash
+		}
 	case shell.ZSH, shell.TCSH:
 		w.format = "%%{%s%%}"
 		w.linechange = "%%{\x1b[%d%s%%}"
@@ -184,6 +193,13 @@ func (w *Writer) Init(shellName string) {
 		w.iTermCurrentDir = "\x1b]1337;CurrentDir=%s\x07"
 		w.iTermRemoteHost = "\x1b]1337;RemoteHost=%s@%s\x07"
 	}
+
+	if shellName == shell.ZSH {
+		w.escapeSequences = map[rune]rune{
+			96: 92, // backtick
+			37: 37, // %
+		}
+	}
 }
 
 func (w *Writer) SetColors(background, foreground string) {
@@ -207,21 +223,26 @@ func (w *Writer) ChangeLine(numberOfLines int) string {
 	if w.Plain {
 		return ""
 	}
+
 	position := "B"
+
 	if numberOfLines < 0 {
 		position = "F"
 		numberOfLines = -numberOfLines
 	}
+
 	return fmt.Sprintf(w.linechange, numberOfLines, position)
 }
 
 func (w *Writer) ConsolePwd(pwdType, userName, hostName, pwd string) string {
 	if w.Plain {
 		return ""
 	}
+
 	if strings.HasSuffix(pwd, ":") {
 		pwd += "\\"
 	}
+
 	switch pwdType {
 	case OSC7:
 		return fmt.Sprintf(w.osc7, hostName, pwd)
@@ -238,6 +259,7 @@ func (w *Writer) ClearAfter() string {
 	if w.Plain {
 		return ""
 	}
+
 	return w.clearLine + w.clearBelow
 }
 
@@ -246,6 +268,7 @@ func (w *Writer) FormatTitle(title string) string {
 	if w.Plain {
 		return title
 	}
+
 	// we have to do this to prevent bash/zsh from misidentifying escape sequences
 	switch w.shell {
 	case shell.BASH:
@@ -256,6 +279,7 @@ func (w *Writer) FormatTitle(title string) string {
 		// these shells don't support setting the title
 		return ""
 	}
+
 	return fmt.Sprintf(w.title, title)
 }
 
@@ -416,10 +440,21 @@ func (w *Writer) write(s rune) {
 		return
 	}
 
-	if !w.hyperlink {
-		w.length += runewidth.RuneWidth(s)
+	if w.hyperlink {
+		w.builder.WriteRune(s)
+		return
+	}
+
+	if !w.Interactive {
+		for special, escape := range w.escapeSequences {
+			if s == special && w.lastRune != escape {
+				w.builder.WriteRune(escape)
+			}
+		}
 	}
 
+	w.length += runewidth.RuneWidth(s)
+	w.lastRune = s
 	w.builder.WriteRune(s)
 }
 

src/engine/block.go

@@ -70,6 +70,7 @@ func (b *Block) InitPlain(env platform.Environment, config *Config) {
 		AnsiColors:         config.MakeColors(),
 		TrueColor:          env.Flags().TrueColor,
 	}
+
 	b.writer.Init(shell.GENERIC)
 	b.env = env
 	b.executeSegmentLogic()
@@ -79,12 +80,14 @@ func (b *Block) executeSegmentLogic() {
 	if shouldHideForWidth(b.env, b.MinWidth, b.MaxWidth) {
 		return
 	}
+
 	b.setEnabledSegments()
 	b.setSegmentsText()
 }
 
 func (b *Block) setActiveSegment(segment *Segment) {
 	b.activeSegment = segment
+	b.writer.Interactive = segment.Interactive
 	b.writer.SetColors(segment.background(), segment.foreground())
 }
 

src/engine/engine.go

@@ -92,16 +92,12 @@ func (e *Engine) pwd() {
 
 	cwd := e.Env.Pwd()
 
-	// in BASH, we need to escape the path
-	if e.Env.Shell() == shell.BASH {
-		cwd = strings.ReplaceAll(cwd, `\`, `\\`)
-	}
-
 	// Backwards compatibility for deprecated OSC99
 	if e.Config.OSC99 {
 		e.write(e.Writer.ConsolePwd(ansi.OSC99, "", "", cwd))
 		return
 	}
+
 	// Allow template logic to define when to enable the PWD (when supported)
 	tmpl := &template.Text{
 		Template: e.Config.PWD,

src/engine/engine_test.go

@@ -66,7 +66,7 @@ func TestPrintPWD(t *testing.T) {
 			Pwd:      `C:\Users\user\Documents\GitHub\oh-my-posh`,
 			Config:   ansi.OSC99,
 			Shell:    shell.BASH,
-			Expected: "\x1b]9;9;C:\\\\Users\\\\user\\\\Documents\\\\GitHub\\\\oh-my-posh\x1b\\",
+			Expected: "\x1b]9;9;C:\\Users\\user\\Documents\\GitHub\\oh-my-posh\x1b\\",
 		},
 	}
 

src/engine/segment.go

@@ -11,7 +11,6 @@ import (
 	"github.com/jandedobbeleer/oh-my-posh/src/platform"
 	"github.com/jandedobbeleer/oh-my-posh/src/properties"
 	"github.com/jandedobbeleer/oh-my-posh/src/segments"
-	"github.com/jandedobbeleer/oh-my-posh/src/shell"
 	"github.com/jandedobbeleer/oh-my-posh/src/template"
 
 	c "golang.org/x/text/cases"
@@ -371,16 +370,20 @@ func (segment *Segment) style() SegmentStyle {
 	if len(segment.styleCache) != 0 {
 		return segment.styleCache
 	}
+
 	segment.styleCache = segment.Style.Resolve(segment.env, segment.writer)
+
 	return segment.styleCache
 }
 
 func (segment *Segment) shouldIncludeFolder() bool {
 	if segment.env == nil {
 		return true
 	}
+
 	cwdIncluded := segment.cwdIncluded()
 	cwdExcluded := segment.cwdExcluded()
+
 	return cwdIncluded && !cwdExcluded
 }
 
@@ -419,6 +422,7 @@ func (segment *Segment) cwdExcluded() bool {
 	if !ok {
 		value = segment.Properties[properties.IgnoreFolders]
 	}
+
 	list := properties.ParseStringArray(value)
 	return segment.env.DirMatchesOneOf(segment.env.Pwd(), list)
 }
@@ -429,26 +433,31 @@ func (segment *Segment) shouldInvokeWithTip(tip string) bool {
 			return true
 		}
 	}
+
 	return false
 }
 
 func (segment *Segment) foreground() string {
 	if segment.colors == nil {
 		segment.colors = &ansi.Colors{}
 	}
+
 	if len(segment.colors.Foreground) == 0 {
 		segment.colors.Foreground = segment.ForegroundTemplates.FirstMatch(segment.writer, segment.env, segment.Foreground)
 	}
+
 	return segment.colors.Foreground
 }
 
 func (segment *Segment) background() string {
 	if segment.colors == nil {
 		segment.colors = &ansi.Colors{}
 	}
+
 	if len(segment.colors.Background) == 0 {
 		segment.colors.Background = segment.BackgroundTemplates.FirstMatch(segment.writer, segment.env, segment.Background)
 	}
+
 	return segment.colors.Background
 }
 
@@ -481,30 +490,36 @@ func (segment *Segment) string() string {
 			return templatesResult
 		}
 	}
+
 	if len(segment.Template) == 0 {
 		segment.Template = segment.writer.Template()
 	}
+
 	tmpl := &template.Text{
 		Template:        segment.Template,
 		Context:         segment.writer,
 		Env:             segment.env,
 		TemplatesResult: templatesResult,
 	}
+
 	text, err := tmpl.Render()
 	if err != nil {
 		return err.Error()
 	}
+
 	return text
 }
 
 func (segment *Segment) Name() string {
 	if len(segment.name) != 0 {
 		return segment.name
 	}
+
 	name := segment.Alias
 	if len(name) == 0 {
 		name = c.Title(language.English).String(string(segment.Type))
 	}
+
 	segment.name = name
 	return name
 }
@@ -562,20 +577,11 @@ func (segment *Segment) SetText() {
 	if !segment.Enabled {
 		return
 	}
+
 	segment.text = segment.string()
 	segment.Enabled = len(strings.ReplaceAll(segment.text, " ", "")) > 0
+
 	if !segment.Enabled {
 		segment.env.TemplateCache().RemoveSegmentData(segment.Name())
 	}
-
-	if segment.Interactive {
-		return
-	}
-	// we have to do this to prevent bash/zsh from misidentifying escape sequences
-	switch segment.env.Shell() {
-	case shell.BASH:
-		segment.text = strings.NewReplacer("`", "\\`", `\`, `\\`).Replace(segment.text)
-	case shell.ZSH:
-		segment.text = strings.NewReplacer("`", "\\`", `%`, `%%`).Replace(segment.text)
-	}
 }