From fd5ef4c3c2e4c56f7b1547318b430a5d10b6860e Mon Sep 17 00:00:00 2001
From: Ketmar Dark <ketmar@ketmar.no-ip.org>
Date: Tue, 12 Apr 2016 07:18:10 +0300
Subject: [PATCH] case-insensitive wad fopen (only filenames, pathes should be
 in the right case)

---
 src/sfs/sfs.pas          | 31 ++++++++++++++++++++++++++
 src/shared/WADEDITOR.pas | 47 +++++++++++++++++++++++++---------------
 2 files changed, 61 insertions(+), 17 deletions(-)

diff --git a/src/sfs/sfs.pas b/src/sfs/sfs.pas
index 14919a4..0f2ff81 100644
--- a/src/sfs/sfs.pas
+++ b/src/sfs/sfs.pas
@@ -206,6 +206,10 @@ function SFSGetLastVirtualName (const fn: TSFSString): string;
 // ïðåîáðàçîâàòü ÷èñëî â ñòðîêó, êðàñèâî ðàçáàâëÿÿ çàïÿòûìè
 function Int64ToStrComma (i: Int64): string;
 
+// `name` will be modified
+// return `true` if file was found
+function sfsFindFileCI (path: string; var name: string): Boolean;
+
 // Wildcard matching
 // this code is meant to allow wildcard pattern matches. tt is VERY useful
 // for matching filename wildcard patterns. tt allows unix grep-like pattern
@@ -267,6 +271,33 @@ begin
 end;
 
 
+// `name` will be modified
+function sfsFindFileCI (path: string; var name: string): Boolean;
+var
+  sr: TSearchRec;
+  bestname: string = '';
+begin
+  if length(path) = 0 then path := '.';
+  while (length(path) > 0) and (path[length(path)] = '/') do Delete(path, length(path), 1);
+  if (length(path) = 0) or (path[length(path)] <> '/') then path := path+'/';
+  if FileExists(path+name) then begin result := true; exit; end;
+  if FindFirst(path+'*', faAnyFile, sr) = 0 then
+  repeat
+    if (sr.name = '.') or (sr.name = '..') then continue;
+    if (sr.attr and faDirectory) <> 0 then continue;
+    if sr.name = name then
+    begin
+      FindClose(sr);
+      result := true;
+      exit;
+    end;
+    if (length(bestname) = 0) and SFSStrEqu(sr.name, name) then bestname := sr.name;
+  until FindNext(sr) <> 0;
+  FindClose(sr);
+  if length(bestname) > 0 then begin result := true; name := bestname; end else result := false;
+end;
+
+
 const
   // character defines
   WILD_CHAR_ESCAPE         = '\';
diff --git a/src/shared/WADEDITOR.pas b/src/shared/WADEDITOR.pas
index 0a80f51..079dc7d 100644
--- a/src/shared/WADEDITOR.pas
+++ b/src/shared/WADEDITOR.pas
@@ -236,36 +236,49 @@ end;
 
 function TWADEditor_1.ReadFile (FileName: string): Boolean;
 var
-  rfn: string;
+  rfn, path: string;
   //f: Integer;
   //fi: TSFSFileInfo;
 begin
   Result := False;
   //e_WriteLog(Format('TWADEditor_1.ReadFile: [%s]', [FileName]), MSG_NOTIFY);
   FreeWAD();
-  rfn := FileName;
-  if not FileExists(rfn) then
+  path := ExtractFilePath(FileName);
+  rfn := ExtractFileName(FileName);
+  if not sfsFindFileCI(path, rfn) then
   begin
-    //if length(rfn) >= 4 then e_WriteLog(Format('XXXX TWADEditor_1.ReadFile: [%s] [%s]', [Copy(rfn, length(rfn)-3, 4), Copy(rfn, 1, length(rfn)-4)]), MSG_NOTIFY);
-    if (length(rfn) >= 4) and SFSStrEqu(Copy(rfn, length(rfn)-3, 4), '.wad') then
+    //{if gSFSDebug then} e_WriteLog(Format('TWADEditor_1.ReadFile: error looking for [%s] [%s]', [path, ExtractFileName(FileName)]), MSG_NOTIFY);
+    if SFSStrEqu(ExtractFileExt(FileName), '.wad') then
     begin
-      rfn := Copy(rfn, 1, length(rfn)-4);
-           if FileExists(rfn+'.pk3') then rfn := rfn+'.pk3'
-      else if FileExists(rfn+'.zip') then rfn := rfn+'.zip'
-      else rfn := FileName;
-      {.$IFDEF SFS_DWFAD_DEBUG}
-      if gSFSDebug then
-        if FileExists(rfn) then e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
-      {.$ENDIF}
+      rfn := ChangeFileExt(ExtractFileName(FileName), '.pk3');
+      //{if gSFSDebug then} e_WriteLog(Format('  looking for [%s] [%s]', [path, rfn]), MSG_NOTIFY);
+      if not sfsFindFileCI(path, rfn) then
+      begin
+        //{if gSFSDebug then} e_WriteLog(Format('  looking for [%s] [%s]', [path, rfn]), MSG_NOTIFY);
+        rfn := ChangeFileExt(ExtractFileName(FileName), '.zip');
+        if not sfsFindFileCI(path, rfn) then exit;
+      end;
+    end
+    else
+    begin
+      exit;
     end;
+    //{if gSFSDebug then} e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
+  end
+  else
+  begin
+    //if rfn <> ExtractFileName(FileName) then e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
   end;
-  if not FileExists(rfn) then exit;
   {$IFDEF SFS_DWFAD_DEBUG}
-  if gSFSDebug then
-    e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
+  if gSFSDebug then e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
   {$ENDIF}
   // cache this wad
-  SFSAddDataFile(rfn);
+  rfn := path+rfn;
+  try
+    if not SFSAddDataFile(rfn) then exit;
+  except
+    exit;
+  end;
   fIter := SFSFileList(rfn);
   if fIter = nil then Exit;
   fFileName := rfn;
-- 
2.29.2