Added non-realloc (read-only/fast) versions of Delete and Remove

Added both "Fast" and reallocing variants of DeleteBlanks() functions that remove all the blank strings from a string list.

src/xpdev/str_list.c

@@ -151,6 +151,28 @@ char* strListRemove(str_list_t* list, size_t index)
 	return(str);
 }
 
+// Remove without realloc
+char* strListFastRemove(str_list_t list, size_t index)
+{
+	char*	str;
+	size_t	i;
+	size_t	count;
+
+	count = strListCount(list);
+
+	if(index == STR_LIST_LAST_INDEX && count)
+		index = count-1;
+
+	if(index >= count)	/* invalid index, do nothing */
+		return NULL;
+
+	str = list[index];
+	for(i = index; i < count; i++)
+		list[i] = list[i + 1];
+
+	return str;
+}
+
 BOOL strListDelete(str_list_t* list, size_t index)
 {
 	char*	str;
@@ -163,6 +185,18 @@ BOOL strListDelete(str_list_t* list, size_t index)
 	return(TRUE);
 }
 
+BOOL strListFastDelete(str_list_t list, size_t index)
+{
+	char*	str;
+
+	if((str=strListFastRemove(list, index))==NULL)
+		return(FALSE);
+
+	free(str);
+
+	return(TRUE);
+}
+
 char* strListReplace(const str_list_t list, size_t index, const char* str)
 {
 	char*	buf;
@@ -802,3 +836,35 @@ int strListDedupe(str_list_t* list, BOOL case_sensitive)
 	}
 	return i;
 }
+
+int strListDeleteBlanks(str_list_t* list)
+{
+	size_t		i;
+
+	if(list == NULL || *list == NULL)
+		return 0;
+
+	for(i = 0; (*list)[i] != NULL; ) {
+		if((*list)[i][0] == '\0')
+			strListDelete(list, i);
+		else
+			i++;
+	}
+	return i;
+}
+
+int strListFastDeleteBlanks(str_list_t list)
+{
+	size_t		i;
+
+	if(list == NULL || *list == NULL)
+		return 0;
+
+	for(i = 0; list[i] != NULL; ) {
+		if(list[i][0] == '\0')
+			strListFastDelete(list, i);
+		else
+			i++;
+	}
+	return i;
+}

src/xpdev/str_list.h

@@ -70,9 +70,11 @@ DLLEXPORT char*			strListInsertFormat(str_list_t* list, size_t index, const char
 
 /* Remove a string at a specific index */
 DLLEXPORT char*			strListRemove(str_list_t*, size_t index);
+DLLEXPORT char*			strListFastRemove(str_list_t, size_t index);
 
 /* Remove and free a string at a specific index */
 DLLEXPORT BOOL			strListDelete(str_list_t*, size_t index);
+DLLEXPORT BOOL			strListFastDelete(str_list_t, size_t index);
 
 /* Replace a string at a specific index */
 DLLEXPORT char*			strListReplace(const str_list_t, size_t index, const char* str);
@@ -152,6 +154,9 @@ DLLEXPORT int			strListTruncateStrings(str_list_t, const char* set);
 DLLEXPORT int			strListStripStrings(str_list_t, const char* set);
 /* Remove duplicate strings from list, return the new list length */
 DLLEXPORT int			strListDedupe(str_list_t*, BOOL case_sensitive);
+/* Remove blank strings from list, return the new list length */
+DLLEXPORT int			strListDeleteBlanks(str_list_t*);
+DLLEXPORT int			strListFastDeleteBlanks(str_list_t);
 
 /************/
 /* File I/O */