Subword Delete Macros for Sublime Text. Similar to alt+delete/ alt+backspace in other software packages.

Delete Subword Backward.sublime-macro

// Delete Backward.
// Put this into your user packages folder. Can be found by navigating to Preferences > Browse Packages... in Sublime Text.
// Then add something like this to your user Key Bindings.
// { "keys": ["alt+backspace"], "command": "run_macro_file", "args": {"file": "res://Packages/User/Delete Subword Backward.sublime-macro"} }
[
	{
		"args":
		{
			"by": "subwords",
			"extend": true,
			"forward": false
		},
		"command": "move"
	},
	{
		"args": null,
		"command": "left_delete"
	}
]

Delete Subword Forward.sublime-macro

// Delete Forward.
// Put this into your user packages folder. Can be found by navigating to Preferences > Browse Packages... in Sublime Text.
// Then add something like this to your user Key Bindings.
// { "keys": ["alt+delete"], "command": "run_macro_file", "args": {"file": "res://Packages/User/Delete Subword Forward.sublime-macro"} }
[
	{
		"args":
		{
			"by": "subword_ends",
			"extend": true,
			"forward": true
		},
		"command": "move"
	},
	{
		"args": null,
		"command": "left_delete"
	}
]