1 files changed, 53 insertions, 0 deletions
diff --git a/editor.go b/editor.go
new file mode 100644
index 0000000..9186a16
--- /dev/null
+++ b/editor.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func doEditor() (string, error) {
+	// Create a temporary file
+	tmpfile, err := ioutil.TempFile("", "regex-*.txt")
+	if err != nil {
+		return "", err
+	}
+	tmpPath := tmpfile.Name()
+	// Defer removal in case of error, but we might move it
+	defer os.Remove(tmpPath)
+	tmpfile.Close()
+
+	// Get the user's editor
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "vim" // default to vim
+	}
+
+	// Run the editor
+	cmd := exec.Command(editor, tmpPath)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+
+	// Read the file content
+	content, err := ioutil.ReadFile(tmpPath)
+	if err != nil {
+		return "", err
+	}
+
+	// Check if the file is not empty after trimming space
+	if strings.TrimSpace(string(content)) != "" {
+		// Move the file
+		if err := os.Rename(tmpPath, "/tmp/regex.txt"); err != nil {
+			return "", err
+		}
+		return "/tmp/regex.txt", nil
+	}
+
+	return "", nil
+}