Function expandPath

Engine/source/console/console.cpp:2064–2224

//-----------------------------------------------------------------------------

bool expandPath(char* pDstPath, U32 size, const char* pSrcPath, const char* pWorkingDirectoryHint, const bool ensureTrailingSlash)
{
   char pathBuffer[2048];
   const char* pSrc = pSrcPath;
   char* pSlash;

   // Fetch leading character.
   const char leadingToken = *pSrc;

   // Fetch following token.
   const char followingToken = leadingToken != 0 ? pSrc[1] : 0;

   // Expando.
   if (leadingToken == '^')
   {
      // Initial prefix search.
      const char* pPrefixSrc = pSrc + 1;
      char* pPrefixDst = pathBuffer;

      // Search for end of expando.
      while (*pPrefixSrc != '/' && *pPrefixSrc != 0)
      {
         // Copy prefix character.
         *pPrefixDst++ = *pPrefixSrc++;
      }

      // Yes, so terminate the expando string.
      *pPrefixDst = 0;

      // Fetch the expando path.
      StringTableEntry expandoPath = getPathExpando(pathBuffer);

      // Does the expando exist?
      if (expandoPath == NULL)
      {
         // No, so error.
         Con::errorf("expandPath() : Could not find path expando '%s' for path '%s'.", pathBuffer, pSrcPath);

         // Are we ensuring the trailing slash?
         if (ensureTrailingSlash)
         {
            // Yes, so ensure it.
            Con::ensureTrailingSlash(pDstPath, pSrcPath);
         }
         else
         {
            // No, so just use the source path.
            dStrcpy(pDstPath, pSrcPath);
         }

         return false;
      }

      // Skip the expando and the following slash.
      pSrc += dStrlen(pathBuffer) + 1;

      // Format the output path.
      dSprintf(pathBuffer, sizeof(pathBuffer), "%s/%s", expandoPath, pSrc);