Improving command parsing semantics, gofmt, warn when command reported

src/backup/todo.txt

@@ -3,17 +3,17 @@
 
 - Make a fuzzy command !> grep and fuzzy over it??? (doesn't seem very useful for grep)
 - Add Bool variable
-- Not rendering U+0009 TAB properly 
+- SetWorkDir should rewrite the buffer name paths for special buffers
 
 - Initialize all keybindings at the start and refer using global variables?
 - RegisterCommand should_appear_in_listing variable
 - Maybe one list for all variables including the commands etc?
-- Problem generating configs don't know which quotation marks would be good ....
 
 Use session 3:
 - Maybe status view, commit changes (like to buffer name or line) on enter?
 
 How to go about search/replace, opening code and other considerations
+- Search and replace sign Find@>ReplaceWith
 - We can use sed + find to search and replace, the automatic reopen should do the job
 - Maybe also we can List all files recursively instead of opening them, how fast is that???
 - For fuzzy find number of files is the problem - most likely just getting them in one place is the biggest problem that can be optimized

src/text_editor/buffer.cpp

@@ -1515,10 +1515,16 @@ void ReopenBuffer(Buffer *buffer) {
 
 void SaveBuffer(Buffer *buffer) {
     bool formatted = false;
-    if (FormatUsingClangFormatWhenCCode) {
+    if (FormatCode) {
         bool c = EndsWith(buffer->name, ".c") || EndsWith(buffer->name, ".cpp") || EndsWith(buffer->name, ".h") || EndsWith(buffer->name, ".hpp");
         if (c) {
-            ApplyClangFormat(buffer);
+            ApplyFormattingTool(buffer, "clang-format");
+            formatted = true;
+        }
+
+        bool go = EndsWith(buffer->name, ".go");
+        if (go) {
+            ApplyFormattingTool(buffer, "gofmt");
             formatted = true;
         }
     }

src/text_editor/commands.cpp

@@ -316,10 +316,10 @@ void ConvertLineEndingsToLF(Buffer *buffer, bool trim_lines_with_caret = false)
     view->update_scroll = false;
 }
 
-void ApplyClangFormat(Buffer *buffer) {
+void ApplyFormattingTool(Buffer *buffer, String tool) {
     Scratch scratch;
     String  string      = AllocCharString(scratch, buffer);
-    Buffer *temp_buffer = ExecAndWait(scratch, "clang-format", GetDir(buffer), string);
+    Buffer *temp_buffer = ExecAndWait(scratch, tool, GetDir(buffer), string);
     ReplaceWithoutMovingCarets(buffer, GetRange(buffer), {temp_buffer->str, temp_buffer->len});
 }
 
@@ -468,7 +468,14 @@ ResolvedOpen ResolveOpen(Allocator alo, String path, String meta) {
     {
         if (StartsWith(path, ":")) {
             result.kind = OpenKind_Command;
-            result.path = Skip(path, 1);
+            path = Skip(path, 1);
+            result.path.data = path.data;
+            for (Int i = 0; i < path.len; i += 1) {
+                if (IsNonWord(path.data[i])) {
+                    break;
+                }
+                result.path.len += 1;
+            }
             return result;
         }
     }
@@ -682,13 +689,16 @@ void CMD_ToggleFullscreen() {
 } RegisterCommand(CMD_ToggleFullscreen, "f11");
 
 void CMD_SetWorkDir() {
+    Scratch scratch;
     BSet main = GetBSet(LastActiveLayoutWindowID);
     WorkDir = GetDir(main.buffer);
+    For (Buffers) {
+        String name = SkipToLastSlash(it->name);
+        it->name = Intern(&GlobalInternTable, Format(scratch, "%S/%S", WorkDir, name));
+    }
 } RegisterCommand(CMD_SetWorkDir, "");
 
-String CodeSkipPatterns[] = {".git/", ".obj", ".o", ".pdb", ".exe", "SDL/", ".ilk", ".ttf", ".ico", ".gif"};
 String Coro_OpenCodeDir;
-
 void Coro_OpenCode(mco_coro *co) {
     Array<String> patterns = Split(CoCurr->arena, NonCodePatterns_EndsWith, "|");
     Array<String> dirs = {CoCurr->arena};
@@ -1381,6 +1391,7 @@ void Set(String16 string) {
 void CMD_Set() {
     BSet set = GetBSet(ActiveWindowID);
     Range range = set.view->carets[0].range;
+    range.max = range.min; // We only scan for :Set
     if (GetSize(range) == 0) {
         range = EncloseLoadWord(set.buffer, range.min);
     }

src/text_editor/globals.cpp

@@ -162,4 +162,4 @@ 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);
+RegisterVariable(Int, FormatCode, 0);

src/text_editor/text_editor.cpp

@@ -460,6 +460,7 @@ void EvalCommand(String command) {
             return;
         }
     }
+    ReportErrorf("Failed to match with any of the commands: %S", command);
 }
 
 void EvalCommand(String16 command) {

src/text_editor/text_editor.h

@@ -196,4 +196,4 @@ 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);
+void ApplyFormattingTool(Buffer *buffer, String tool);