add export config script

export config.swift

@@ -0,0 +1,68 @@
+#!/usr/bin/swift
+
+import Foundation
+
+func camelCaseToSnakeCase(_ string: Substring) -> String {
+	var output = string.first?.lowercased() ?? ""
+	
+	var previousCharacterWasUppercase = false
+	
+	for character in string.dropFirst() {
+		if character.isUppercase {
+			if previousCharacterWasUppercase {
+				output.append(character.lowercased())
+			} else {
+				output += "_\(character.lowercased())"
+				previousCharacterWasUppercase = true
+			}
+		} else if character.isNumber {
+			output += "_\(character)"
+			
+			previousCharacterWasUppercase = false
+		} else {
+			output.append(character)
+			
+			previousCharacterWasUppercase = false
+		}
+	}
+	
+	return output
+}
+
+let defaultConfigPath = URL(filePath: "src/config/default.rs")
+
+let lines = try String(contentsOf: defaultConfigPath, encoding: .utf8)
+	.split(separator: "\n", omittingEmptySubsequences: false)
+	.dropFirst(14)
+	.dropLast(6)
+
+precondition(lines.first!.contains("Mode::Normal"))
+
+var mode: String?
+
+for line in lines {
+	if let match = line.wholeMatch(of: #/.*Mode::(?'mode'\w*),.*/#) {
+		mode = match.output.mode.lowercased()
+	} else if line.contains("None") {
+		print("[\(mode!)]")
+	} else if let match = line.wholeMatch(of: #/.*PartialAction::(?'partialAction'\w*).*/#) {
+		let partialAction = match.output.partialAction.lowercased()
+		print("[\(mode!).\(partialAction)]")
+	} else if let match = line.wholeMatch(of: #/.*\(keypress\("(?'keypress'.*?)"\), (?'action'.*?)\.into\(\)\).*/#) {
+		if match.output.keypress.contains(where: { !($0.isLetter || $0.isNumber) }) {
+			print(
+				"\"\(match.output.keypress)\"",
+				"=",
+				"\"\(camelCaseToSnakeCase(match.output.action))\""
+			)
+		} else {
+			print(
+				match.output.keypress,
+				"=",
+				"\"\(camelCaseToSnakeCase(match.output.action))\""
+			)
+		}
+	} else {
+		print()
+	}
+}