Any Swap

A plugin of Sublime Text 3 that helps user to swap parameters, lines, and expressions from current cursor.

Behaves just like Move-Element-Left/Right in IntelliJ's IDEs, but more intelligently. It is based on a general abstract-syntax-tree analyzer that enables user to swap complicated expressions recursively while maintaining a correct operator precedence.

Usage

First of all, install package AnySwap via Package Control (not published yet) or clone this repo into your Sublime Text 3/Packages/ folder.

Bind command any_swap with parameter forward equals true or false to keys that you prefer. The command is set to alt+[ and alt+] by default.

{ "keys": ["alt+["], "command": "any_swap", "args": {"forward": false} },
{ "keys": ["alt+]"], "command": "any_swap", "args": {"forward": true} },

Place your cursor (|) on the begin/end of a word/paren, then trigger the command.

Features

Parameters:

func(a|, b)         => func(b, a|)         => func(|a, b)
func(int a|, int b) => func(int b, int a|) => func(|int a, int b)

Lines:

a|, b   =>  b, a|   =>  c, d
c, d        c, d        b, a|

Math expressions:

a| * b + c   => b * a| + c   => c + b * a|
(a| + b) * c => (b + a|) * c => c * (b + a)|

Expressions with functions:

func(a| + b, c) * d => func(b + a|, c) * d  => func(c, b + a|) * d   => d * func(c, b + a)|

Expressions with nested functions:

func(a().b(c| + d), f)  => func(a().b(d + c|), f)   => func(f, a().b(d + c)|)

Logic expressions:

a| and b or c   => b and a| or c    => c or b and a|
if a| and b     => if b and a|

Array expressions:

a[0|][1]        => a[1][0|]
a[b[c| + 1]][0] => a[b[1 + c|]][0] => a[0][b[1 + c]|]

Statements:

a = 1|; b = 2;     => b = 2; a = 1;|
return a|, b     => return b, a|

Cross-line expressions:

func(a|, => func(b,
    b)          a|)