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 <h/utils.h>
  10
  11 static char *default_editor = NULL;
  12
  13 char *
  14 get_default_editor(void)
  15 {
  16     char *str;
  17
  18     if (default_editor)
  19         return default_editor;
  20
  21     if (!(str = context_find("editor")) && !(str = getenv("VISUAL")) &&
  22         !(str = getenv("EDITOR"))) {
  23         str = "vi";
  24     }
  25
  26     return (default_editor = str);
  27 }