FormatUsingClangFormatWhenCCode and TrimTrailingWhitespace

src/backup/todo.txt

@@ -2,9 +2,8 @@
 ! From a user (novice) point of view, how does it look like?
 
 - Make a fuzzy command !> grep and fuzzy over it??? (doesn't seem very useful for grep)
-- OpenCode :Set CodeExcludePatterns ".git/|mk
+- Add Bool variable
-- ClangFormatOnCCode variable
+- Not rendering U+0009 TAB properly 
-- CleanTrailingWhitespace
 
 - Initialize all keybindings at the start and refer using global variables?
 - RegisterCommand should_appear_in_listing variable

src/text_editor/buffer.cpp

@@ -1514,6 +1514,19 @@ void ReopenBuffer(Buffer *buffer) {
 }
 
 void SaveBuffer(Buffer *buffer) {
+    bool formatted = false;
+    if (FormatUsingClangFormatWhenCCode) {
+        bool c = EndsWith(buffer->name, ".c") || EndsWith(buffer->name, ".cpp") || EndsWith(buffer->name, ".h") || EndsWith(buffer->name, ".hpp");
+        if (c) {
+            ApplyClangFormat(buffer);
+            formatted = true;
+        }
+    }
+
+    if (TrimTrailingWhitespace && formatted == false) {
+        TrimWhitespace(buffer);
+    }
+
     Scratch scratch;
     String string  = AllocCharString(scratch, buffer);
     bool success = WriteFile(buffer->name, string);

src/text_editor/commands.cpp

@@ -247,7 +247,7 @@ void MoveCursorByPageSize(Window *window, int direction, bool shift = false) {
     }
 }
 
-void TrimTrailingWhitespace(Buffer *buffer, bool trim_lines_with_caret = false) {
+void TrimWhitespace(Buffer *buffer, bool trim_lines_with_caret) {
     Scratch scratch;
 
     bool is_active_view = false;

src/text_editor/globals.cpp

@@ -161,3 +161,5 @@ RegisterVariable(Float, UndoMergeTime, 0.3);
 RegisterVariable(Float, JumpHistoryMergeTime, 0.3);
 RegisterVariable(String, InternetBrowser, "firefox");
 RegisterVariable(String, NonCodePatterns_EndsWith, ".git/|.obj|.o|.pdb|.exe|.ilk|.ttf|.ico|.gif|.jpg|.png|.spall");
+RegisterVariable(Int, TrimTrailingWhitespace, 1);
+RegisterVariable(Int, FormatUsingClangFormatWhenCCode, 0);

src/text_editor/text_editor.h

@@ -195,3 +195,5 @@ struct ResolvedOpen {
 };
 ResolvedOpen ResolveOpen(Allocator scratch, String path, String meta);
 void CenterView(WindowID window);
+void TrimWhitespace(Buffer *buffer, bool trim_lines_with_caret = false);
+void ApplyClangFormat(Buffer *buffer);