doc: sort readline alphabetically

Reorders, with no contextual changes, the readline documentation
alphabetically.

PR-URL: #3662
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

Author: tflanagan

doc/api/readline.markdown

@@ -23,75 +23,21 @@ program to gracefully exit:
       rl.close();
     });
 
-## readline.createInterface(options)
-
-Creates a readline `Interface` instance. Accepts an "options" Object that takes
-the following values:
-
- - `input` - the readable stream to listen to (Required).
-
- - `output` - the writable stream to write readline data to (Optional).
-
- - `completer` - an optional function that is used for Tab autocompletion. See
-   below for an example of using this.
-
- - `terminal` - pass `true` if the `input` and `output` streams should be
-   treated like a TTY, and have ANSI/VT100 escape codes written to it.
-   Defaults to checking `isTTY` on the `output` stream upon instantiation.
-
- - `historySize` - maximum number of history lines retained. Defaults to `30`.
-
-The `completer` function is given the current line entered by the user, and
-is supposed to return an Array with 2 entries:
-
- 1. An Array with matching entries for the completion.
-
- 2. The substring that was used for the matching.
-
-Which ends up looking something like:
-`[[substr1, substr2, ...], originalsubstring]`.
-
-Example:
-
-    function completer(line) {
-      var completions = '.help .error .exit .quit .q'.split(' ')
-      var hits = completions.filter(function(c) { return c.indexOf(line) == 0 })
-      // show all completions if none found
-      return [hits.length ? hits : completions, line]
-    }
-
-Also `completer` can be run in async mode if it accepts two arguments:
-
-    function completer(linePartial, callback) {
-      callback(null, [['123'], linePartial]);
-    }
-
-`createInterface` is commonly used with `process.stdin` and
-`process.stdout` in order to accept user input:
-
-    var readline = require('readline');
-    var rl = readline.createInterface({
-      input: process.stdin,
-      output: process.stdout
-    });
-
-Once you have a readline instance, you most commonly listen for the
-`"line"` event.
-
-If `terminal` is `true` for this instance then the `output` stream will get
-the best compatibility if it defines an `output.columns` property, and fires
-a `"resize"` event on the `output` if/when the columns ever change
-(`process.stdout` does this automatically when it is a TTY).
-
 ## Class: Interface
 
 The class that represents a readline interface with an input and output
 stream.
 
-### rl.setPrompt(prompt)
+### rl.close()
 
-Sets the prompt, for example when you run `node` on the command line, you see
-`> `, which is node.js's prompt.
+Closes the `Interface` instance, relinquishing control on the `input` and
+`output` streams. The "close" event will also be emitted.
+
+### rl.pause()
+
+Pauses the readline `input` stream, allowing it to be resumed later if needed.
+
+Note that this doesn't immediately pause the stream of events. Several events may be emitted after calling `pause`, including `line`.
 
 ### rl.prompt([preserveCursor])
 
@@ -123,20 +69,14 @@ Example usage:
       console.log('Oh, so your favorite food is ' + answer);
     });
 
-### rl.pause()
-
-Pauses the readline `input` stream, allowing it to be resumed later if needed.
-
-Note that this doesn't immediately pause the stream of events. Several events may be emitted after calling `pause`, including `line`.
-
 ### rl.resume()
 
 Resumes the readline `input` stream.
 
-### rl.close()
+### rl.setPrompt(prompt)
 
-Closes the `Interface` instance, relinquishing control on the `input` and
-`output` streams. The "close" event will also be emitted.
+Sets the prompt, for example when you run `node` on the command line, you see
+`> `, which is node.js's prompt.
 
 ### rl.write(data[, key])
 
@@ -154,6 +94,19 @@ Example:
 
 ## Events
 
+### Event: 'close'
+
+`function () {}`
+
+Emitted when `close()` is called.
+
+Also emitted when the `input` stream receives its "end" event. The `Interface`
+instance should be considered "finished" once this is emitted. For example, when
+the `input` stream receives `^D`, respectively known as `EOT`.
+
+This event is also called if there is no `SIGINT` event listener present when
+the `input` stream receives a `^C`, respectively known as `SIGINT`.
+
 ### Event: 'line'
 
 `function (line) {}`
@@ -194,18 +147,23 @@ Example of listening for `resume`:
       console.log('Readline resumed.');
     });
 
-### Event: 'close'
+### Event: 'SIGCONT'
 
 `function () {}`
 
-Emitted when `close()` is called.
+**This does not work on Windows.**
 
-Also emitted when the `input` stream receives its "end" event. The `Interface`
-instance should be considered "finished" once this is emitted. For example, when
-the `input` stream receives `^D`, respectively known as `EOT`.
+Emitted whenever the `input` stream is sent to the background with `^Z`,
+respectively known as `SIGTSTP`, and then continued with `fg(1)`. This event
+only emits if the stream was not paused before sending the program to the
+background.
 
-This event is also called if there is no `SIGINT` event listener present when
-the `input` stream receives a `^C`, respectively known as `SIGINT`.
+Example of listening for `SIGCONT`:
+
+    rl.on('SIGCONT', function() {
+      // `prompt` will automatically resume the stream
+      rl.prompt();
+    });
 
 ### Event: 'SIGINT'
 
@@ -247,25 +205,6 @@ Example of listening for `SIGTSTP`:
       console.log('Caught SIGTSTP.');
     });
 
-### Event: 'SIGCONT'
-
-`function () {}`
-
-**This does not work on Windows.**
-
-Emitted whenever the `input` stream is sent to the background with `^Z`,
-respectively known as `SIGTSTP`, and then continued with `fg(1)`. This event
-only emits if the stream was not paused before sending the program to the
-background.
-
-Example of listening for `SIGCONT`:
-
-    rl.on('SIGCONT', function() {
-      // `prompt` will automatically resume the stream
-      rl.prompt();
-    });
-
-
 ## Example: Tiny CLI
 
 Here's an example of how to use all these together to craft a tiny command
@@ -292,14 +231,6 @@ line interface:
       process.exit(0);
     });
 
-## readline.cursorTo(stream, x, y)
-
-Move cursor to the specified position in a given TTY stream.
-
-## readline.moveCursor(stream, dx, dy)
-
-Move cursor relative to it's current position in a given TTY stream.
-
 ## readline.clearLine(stream, dir)
 
 Clears current line of given TTY stream in a specified direction.
@@ -312,3 +243,71 @@ Clears current line of given TTY stream in a specified direction.
 ## readline.clearScreenDown(stream)
 
 Clears the screen from the current position of the cursor down.
+
+## readline.createInterface(options)
+
+Creates a readline `Interface` instance. Accepts an "options" Object that takes
+the following values:
+
+ - `input` - the readable stream to listen to (Required).
+
+ - `output` - the writable stream to write readline data to (Optional).
+
+ - `completer` - an optional function that is used for Tab autocompletion. See
+   below for an example of using this.
+
+ - `terminal` - pass `true` if the `input` and `output` streams should be
+   treated like a TTY, and have ANSI/VT100 escape codes written to it.
+   Defaults to checking `isTTY` on the `output` stream upon instantiation.
+
+ - `historySize` - maximum number of history lines retained. Defaults to `30`.
+
+The `completer` function is given the current line entered by the user, and
+is supposed to return an Array with 2 entries:
+
+ 1. An Array with matching entries for the completion.
+
+ 2. The substring that was used for the matching.
+
+Which ends up looking something like:
+`[[substr1, substr2, ...], originalsubstring]`.
+
+Example:
+
+    function completer(line) {
+      var completions = '.help .error .exit .quit .q'.split(' ')
+      var hits = completions.filter(function(c) { return c.indexOf(line) == 0 })
+      // show all completions if none found
+      return [hits.length ? hits : completions, line]
+    }
+
+Also `completer` can be run in async mode if it accepts two arguments:
+
+    function completer(linePartial, callback) {
+      callback(null, [['123'], linePartial]);
+    }
+
+`createInterface` is commonly used with `process.stdin` and
+`process.stdout` in order to accept user input:
+
+    var readline = require('readline');
+    var rl = readline.createInterface({
+      input: process.stdin,
+      output: process.stdout
+    });
+
+Once you have a readline instance, you most commonly listen for the
+`"line"` event.
+
+If `terminal` is `true` for this instance then the `output` stream will get
+the best compatibility if it defines an `output.columns` property, and fires
+a `"resize"` event on the `output` if/when the columns ever change
+(`process.stdout` does this automatically when it is a TTY).
+
+## readline.cursorTo(stream, x, y)
+
+Move cursor to the specified position in a given TTY stream.
+
+## readline.moveCursor(stream, dx, dy)
+
+Move cursor relative to it's current position in a given TTY stream.