diplodocus.org Git - nmh/blob - sbr/geteditor.c

   1 /* geteditor.c -- Determine the default editor to use
   2  *
   3  * This code is Copyright (c) 2013, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include "h/mh.h"
   9 #include "geteditor.h"
  10 #include "context_find.h"
  11 #include "h/utils.h"
  12
  13 static char *default_editor = NULL;
  14
  15 char *
  16 get_default_editor(void)
  17 {
  18     char *str;
  19
  20     if (default_editor)
  21         return default_editor;
  22
  23     if (!(str = context_find("editor")) && !(str = getenv("VISUAL")) &&
  24         !(str = getenv("EDITOR"))) {
  25         str = "vi";
  26     }
  27
  28     return default_editor = str;
  29 }