Adds file-create-temp and file-name, updates readme

README.md

@@ -283,9 +283,11 @@ Not implemented, but on my radar:
     <li><code>(read-all-lines [[IOHandle]])</code>: <code>list</code></li>
     <li><code>(close [IOHandle])</code>: <code>()</code></li>
     <li><code>(file-create [filepath: string])</code>: <code>IOHandle</code></li>
+    <li><code>(file-create-temp [filename-pattern: string])</code>: <code>IOHandle</code></li>
     <li><code>(file-open-read [filepath: string])</code>: <code>IOHandle</code></li>
     <li><code>(file-open-write [filepath: string])</code>: <code>IOHandle</code></li>
     <li><code>(file-append-to [filepath: string] [string...])</code>: <code>()</code></li>
+    <li><code>(file-name [IOHandle: file])</code>: <code>string</code></li>
     <li><code>(file-stat [filepath: string])</code>: <code>assoc list</code> The associative list will have the following keys: <code>name</code>, <code>size</code>, <code>mode</code>, <code>mod-time</code>, <code>is-dir?</code>. <code>mode</code> will be in decimal as a number and can be converted to an octal string with <code>number->string</code>. <code>size</code> is in bytes.</li>
   </ul>
 </details>

lib.go

@@ -1374,8 +1374,39 @@ var stdLibrary = vars{
 		}
 		return strconv.FormatFloat(float64(n), 'f', -1, 64)
 	},
+	"file-create-temp": func(a ...expression) expression {
+		if len(a) == 0 {
+			return exception("'file-create-temp' expects a filename pattern as a string, no value was given")
+		}
+		fp, ok := a[0].(string)
+		if !ok {
+			return exception("'file-create-temp' expects a string representing a filename pattern, a non-string value was given")
+		}
+		f, err := os.CreateTemp("", fp)
+		if err != nil {
+			return exception("'file-create-temp' was unable to create the requested temporary file: " + err.Error())
+		}
+		obj := &IOHandle{f, true}
+		openFiles = append(openFiles, obj)
+		return obj
+	},
+	"file-name": func(a ...expression) expression {
+		if len(a) == 0 {
+			return exception("'file-path' expects an IOHandle, no value was given")
+		}
+		ioh, ok := a[0].(*IOHandle)
+		if !ok {
+			return exception("'file-path' expects an IOHandle, a non-IOHandle value was given")
+		}
+		switch f := ioh.Obj.(type) {
+			case *os.File:
+				return f.Name()
+			default:
+				return exception("'file-path' encountered an IOHandle type that it cannot process")
+		}
+	},
 	"file-stat": func(a ...expression) expression {
-		if len(a) < 1 {
+		if len(a) == 0 {
 			return exception("'file-stat' expects a filepath, no filepath was given")
 		}
 		fp, ok := a[0].(string)