readline: use module.exports = {}

PR-URL: #12755
Reviewed-By: Anna Henningsen <anna@addaleax.net>

lib/readline.js

@@ -43,7 +43,7 @@ const isFullWidthCodePoint = internalReadline.isFullWidthCodePoint;
 const stripVTControlCharacters = internalReadline.stripVTControlCharacters;
 
 
-exports.createInterface = function(input, output, completer, terminal) {
+function createInterface(input, output, completer, terminal) {
   return new Interface(input, output, completer, terminal);
 };
 
@@ -311,13 +311,13 @@ Interface.prototype._refreshLine = function() {
   // first move to the bottom of the current line, based on cursor pos
   var prevRows = this.prevRows || 0;
   if (prevRows > 0) {
-    exports.moveCursor(this.output, 0, -prevRows);
+    moveCursor(this.output, 0, -prevRows);
   }
 
   // Cursor to left edge.
-  exports.cursorTo(this.output, 0);
+  cursorTo(this.output, 0);
   // erase data
-  exports.clearScreenDown(this.output);
+  clearScreenDown(this.output);
 
   // Write the prompt and the current buffer content.
   this._writeToOutput(line);
@@ -328,11 +328,11 @@ Interface.prototype._refreshLine = function() {
   }
 
   // Move cursor to original position.
-  exports.cursorTo(this.output, cursorPos.cols);
+  cursorTo(this.output, cursorPos.cols);
 
   var diff = lineRows - cursorPos.rows;
   if (diff > 0) {
-    exports.moveCursor(this.output, 0, -diff);
+    moveCursor(this.output, 0, -diff);
   }
 
   this.prevRows = cursorPos.rows;
@@ -716,7 +716,7 @@ Interface.prototype._moveCursor = function(dx) {
           this.line.substring(this.cursor, oldcursor)
           );
     }
-    exports.moveCursor(this.output, diffWidth, 0);
+    moveCursor(this.output, diffWidth, 0);
     this.prevRows = newPos.rows;
   } else {
     this._refreshLine();
@@ -798,8 +798,8 @@ Interface.prototype._ttyWrite = function(s, key) {
         break;
 
       case 'l': // clear the whole screen
-        exports.cursorTo(this.output, 0, 0);
-        exports.clearScreenDown(this.output);
+        cursorTo(this.output, 0, 0);
+        clearScreenDown(this.output);
         this._refreshLine();
         break;
 
@@ -957,10 +957,6 @@ Interface.prototype._ttyWrite = function(s, key) {
   }
 };
 
-
-exports.Interface = Interface;
-
-
 /**
  * accepts a readable Stream instance and makes it emit "keypress" events
  */
@@ -1036,8 +1032,6 @@ function emitKeypressEvents(stream, iface) {
     stream.on('newListener', onNewListener);
   }
 }
-exports.emitKeypressEvents = emitKeypressEvents;
-
 
 /**
  * moves the cursor to the x and y coordinate on the given stream
@@ -1059,8 +1053,6 @@ function cursorTo(stream, x, y) {
     stream.write('\x1b[' + (y + 1) + ';' + (x + 1) + 'H');
   }
 }
-exports.cursorTo = cursorTo;
-
 
 /**
  * moves the cursor relative to its current location
@@ -1082,8 +1074,6 @@ function moveCursor(stream, dx, dy) {
     stream.write('\x1b[' + dy + 'B');
   }
 }
-exports.moveCursor = moveCursor;
-
 
 /**
  * clears the current line the cursor is on:
@@ -1107,8 +1097,6 @@ function clearLine(stream, dir) {
     stream.write('\x1b[2K');
   }
 }
-exports.clearLine = clearLine;
-
 
 /**
  * clears the screen from the current position of the cursor down
@@ -1120,4 +1108,13 @@ function clearScreenDown(stream) {
 
   stream.write('\x1b[0J');
 }
-exports.clearScreenDown = clearScreenDown;
+
+module.exports = {
+  Interface,
+  clearLine,
+  clearScreenDown,
+  createInterface,
+  cursorTo,
+  emitKeypressEvents,
+  moveCursor
+};