Moved formatting logic to separate file

Also updated branch

blueprintcompiler/formatter.py

@@ -0,0 +1,51 @@
+# decompiler.py
+#
+# Copyright 2021 James Westman <james@jwestman.net>
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+from . import tokenizer
+
+newline_after = [";", "]"]
+opening_tokens = ["{"]
+closing_tokens = ["}"]
+
+
+class Format:
+    def format(data):
+        indent_levels = 0
+        tokens = tokenizer.tokenize(data)
+
+        tokenized_str = ""
+        for index, item in enumerate(tokens):
+            if item.type != tokenizer.TokenType.WHITESPACE:
+                tokenized_str += str(item)
+                if str(item) in opening_tokens:
+                    indent_levels += 1
+
+                try:
+                    if str(tokens[index + 1]) in closing_tokens:
+                        indent_levels -= 1
+                except:
+                    pass
+
+                if str(item) in newline_after + closing_tokens + opening_tokens:
+                    tokenized_str += "\n"
+                    tokenized_str += indent_levels * "  "
+            else:
+                tokenized_str += " "
+
+        return tokenized_str