Converts rich document in Clipboard to a Markdown document in clipboard

rich2md.sh

#!/bin/bash
# Convert rich text (HTML) from clipboard to Markdown and copy it back
# Usage: rich2md.sh (reads HTML from clipboard)
#        echo "<h1>Hello</h1>" | rich2md.sh (reads HTML from stdin)

export PATH="/opt/homebrew/bin:/usr/local/bin:$PATH"

if [ -p /dev/stdin ]; then
  # HTML piped via stdin
  html=$(cat)
else
  # Extract HTML from clipboard using Swift (reliable binary-safe method)
  html=$(swift -e '
import AppKit
if let data = NSPasteboard.general.data(forType: .html),
   let html = String(data: data, encoding: .utf8) {
  print(html, terminator: "")
} else {
  exit(1)
}
' 2>/dev/null)

  if [ $? -ne 0 ] || [ -z "$html" ]; then
    echo "No rich text found on clipboard. Copy some rich text first." >&2
    exit 1
  fi
fi

# Strip style, class, and id attributes from HTML for cleaner conversion
html=$(echo "$html" | sed -E 's/ (style|class|id)="[^"]*"//g')

# Convert HTML to Markdown via pandoc (gfm = cleaner output, no escaped quotes)
markdown=$(echo "$html" | pandoc -f html -t gfm --wrap=auto | sed '/^[\\]$/d')

# Pretty print the result
echo "Converted Markdown:"
echo "------------------------"
echo "$markdown"
echo "------------------------"

# Copy Markdown to clipboard
echo -n "$markdown" | pbcopy

# Notify user
echo "Markdown has been copied to the clipboard. ✨"