# TUI Newline Fix Implementation Summary

## Problem
The TUI application was displaying literal `\n` characters as text strings instead of rendering them as actual line breaks in the right-hand panel when viewing backup output.

## Root Cause
Backup scripts were outputting literal escape sequences (e.g., `\n`, `\t`, `\r`) as text strings, which were being displayed directly in the TUI viewport without processing.

## Solution
Implemented a `processEscapeSequences()` helper function that converts literal escape sequences to their actual character representations before displaying content in the viewport.

## Implementation Details

### 1. Added Helper Function
```go
// Helper function to process escape sequences in output text
func processEscapeSequences(text string) string {
    processed := strings.ReplaceAll(text, "\\n", "\n")
    processed = strings.ReplaceAll(processed, "\\t", "\t")
    processed = strings.ReplaceAll(processed, "\\r", "\r")
    return processed
}
```

### 2. Integration Points
The function is called in three key locations where backup output is displayed:

1. **Backup Success Messages** (line ~584)
   ```go
   processedOutput := processEscapeSequences(msg.output)
   ```

2. **Backup Error Messages** (line ~621)
   ```go
   processedError := processEscapeSequences(msg.error)
   ```

3. **Running Backup Output** (line ~677)
   ```go
   processedOutput := processEscapeSequences(outputForDisplay)
   ```

## Testing
- Created test scripts that generate literal escape sequences
- Verified the fix converts `\n` to actual newlines
- Confirmed TUI compiles and runs successfully
- Tested with demonstration scripts

## Files Modified
- `/home/acedanger/shell/tui/main.go` - Main TUI application

## Files Created for Testing
- `/home/acedanger/shell/test-plex-backup.sh` - Test script with literal newlines
- `/home/acedanger/shell/test-newline-fix.go` - Standalone test of the fix
- `/home/acedanger/shell/demonstrate-newline-fix.sh` - Demonstration script

## Result
✅ **Issue Resolved**: The TUI now properly displays newlines, tabs, and carriage returns in backup output instead of showing them as literal escape sequence characters.

## Usage
The fix is automatically applied to all backup output displayed in the TUI. No user action required - the escape sequence processing happens transparently.

---
*Fix implemented on May 30, 2025*
