Optimization for fexist() and fexistcase() when neither * nor ? is present

on the passed path...
For fexist() simply return TRUE if access()!=-1 && !isdir()
For fexistcase() *try* the access()/isdir() method first, then do the full
search.  Should make a reasonable difference.  Profileing suggests that
iniFileName() is quite slow due to the fexistcase() calls.  As the general
case is that the passed path is correct, this should speed up most calls
to fexist*().

src/xpdev/dirwrap.c

@@ -418,6 +418,21 @@ long DLLCALL flength(const char *filename)
 #endif
 }
 
+
+/****************************************************************************/
+/* Checks the file system for the existence of one or more files.			*/
+/* Returns TRUE if it exists, FALSE if it doesn't.                          */
+/* 'filespec' may *NOT* contain wildcards!									*/
+/****************************************************************************/
+static BOOL fnameexist(const char *filename)
+{
+	if(access(filename,0)==-1)
+		return(FALSE);
+	if(!isdir(filename))
+		return(TRUE);
+	return(FALSE);
+}
+
 /****************************************************************************/
 /* Checks the file system for the existence of one or more files.			*/
 /* Returns TRUE if it exists, FALSE if it doesn't.                          */
@@ -430,8 +445,8 @@ BOOL DLLCALL fexist(const char *filespec)
 	long	handle;
 	struct _finddata_t f;
 
-	if(access(filespec,0)==-1 && !strchr(filespec,'*') && !strchr(filespec,'?'))
-		return(FALSE);
+	if(!strchr(filespec,'*') && !strchr(filespec,'?'))
+		return(fnameexist(filespec));
 
 	if((handle=_findfirst((char*)filespec,&f))==-1)
 		return(FALSE);
@@ -450,8 +465,8 @@ BOOL DLLCALL fexist(const char *filespec)
 	glob_t g;
     int c;
 
-	if(access(filespec,0)==-1 && !strchr(filespec,'*') && !strchr(filespec,'?'))
-		return(FALSE);
+	if(!strchr(filespec,'*') && !strchr(filespec,'?'))
+		return(fnameexist(filespec));
 
     /* start the search */
     glob(filespec, GLOB_MARK | GLOB_NOSORT, NULL, &g);
@@ -488,8 +503,8 @@ BOOL DLLCALL fexistcase(char *path)
 	long	handle;
 	struct _finddata_t f;
 
-	if(access(path,0)==-1 && !strchr(path,'*') && !strchr(path,'?'))
-		return(FALSE);
+	if(!strchr(path,'*') && !strchr(path,'?'))
+		return(fnameexist(path));
 
 	if((handle=_findfirst((char*)path,&f))==-1)
 		return(FALSE);
@@ -513,6 +528,9 @@ BOOL DLLCALL fexistcase(char *path)
 	int  i;
 	glob_t	glb;
 	
+	if(!strchr(path,'*') && !strchr(path,'?') && fnameexist(path))
+		return(TRUE);
+
 	SAFECOPY(globme,path);
 	p=getfname(globme);
 	SAFECOPY(fname,p);