tweak begpar() to rely on fileage instead of NULL for its check to

detect the top of the file, and make it return NULL if foo is NULL, just
as inpar() does


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3126 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -47,7 +47,8 @@ CVS code -
 	  file.  Changes to cut_line(), cut_to_eol(), do_page_up(),
 	  do_page_down(), do_para_end(), do_next_word(), do_prev_word(),
 	  do_up(), do_down(), do_scroll_down(), do_right(), do_mouse(),
-	  do_gotolinecolumn(), do_delete(), and find_paragraph(). (DLR)
+	  do_gotolinecolumn(), do_delete(), begpar(), and
+	  find_paragraph(). (DLR)
 	- Add new -L/--nonewlines command line option, and new
 	  "nonewlines" rcfile option, to control whether nano adds
 	  magiclines to the ends of files.  Changes to read_file(),
@@ -105,6 +106,8 @@ CVS code -
   do_rcfile()
 	- Remove unneeded assert. (DLR)
 - text.c:
+  begpar()
+	- Return FALSE if foo is NULL, as inpar() does. (DLR)
   do_alt_speller()
 	- Move the code that replaces the text of the current file with
 	  the text of the spell-checked file into its own function,

src/text.c

@@ -899,12 +899,13 @@ bool indents_match(const char *a_line, size_t a_indent, const char
  *   autoindent is turned on. */
 bool begpar(const filestruct *const foo)
 {
-    size_t quote_len;
-    size_t indent_len;
-    size_t temp_id_len;
+    size_t quote_len, indent_len, temp_id_len;
+
+    if (foo == NULL)
+	return FALSE;
 
     /* Case 1). */
-    if (foo->prev == NULL)
+    if (foo == openfile->fileage)
 	return TRUE;
 
     quote_len = quote_length(foo->data);