in help_line_len(), properly handle the case where we can't break the

line of help text, and wrap the line of help text at (COLS - 1) instead
of (COLS - 8), for consistency


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3666 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -267,6 +267,12 @@ CVS code -
 	  consistency with the file browser. (DLR, suggested by Benno
 	  Schulenberg)
 	- Remove redundant key checks. (DLR)
+  help_line_len()
+	- Properly handle the case where we can't break the line of help
+	  text. (DLR)
+	- Wrap the line of help text at (COLS - 1) instead of
+	  (COLS - 8), for consistency. (DLR, suggested by Benno
+	  Schulenberg)
 - nano.c:
   print1opt_full()
 	- Rename to print_opt_full(), for consistency. (DLR)

src/help.c

@@ -596,21 +596,22 @@ void parse_help_input(int *kbinput, bool *meta_key, bool *func_key)
 /* Calculate the next line of help_text, starting at ptr. */
 size_t help_line_len(const char *ptr)
 {
-    int help_cols = (COLS > 24) ? COLS - 8 : 24;
+    int help_cols = (COLS > 24) ? COLS - 1 : 24;
 
-    /* Try to break the line at (COLS - 8) columns if we have more than
+    /* Try to break the line at (COLS - 1) columns if we have more than
      * 24 columns, and at 24 columns otherwise. */
-    size_t retval = break_line(ptr, help_cols, TRUE);
+    ssize_t wrap_loc = break_line(ptr, help_cols, TRUE);
+    size_t retval = (wrap_loc < 0) ? 0 : wrap_loc;
     size_t retval_save = retval;
 
     /* Get the length of the entire line up to a null or a newline. */
     while (*(ptr + retval) != '\0' && *(ptr + retval) != '\n')
 	retval += move_mbright(ptr + retval, 0);
 
-    /* If the entire line doesn't go more than 8 columns beyond where we
+    /* If the entire line doesn't go more than 1 column beyond where we
      * tried to break it, we should display it as-is.  Otherwise, we
      * should display it only up to the break. */
-    if (strnlenpt(ptr, retval) > help_cols + 8)
+    if (strnlenpt(ptr, retval) > help_cols + 1)
 	retval = retval_save;
 
     return retval;