[bug-idutils] eid bug

[Bruno Haible]

Hi,

I have the EDITOR variable set:
$ echo "$EDITOR"
emacs -nw

and now when I use the "eid" command on a clisp source tree, I get

$ eid lispbibl
lispbibl       build/genclisph.c utils/txt2c.c doc/extend.txt
edit? [y1-9^S/nq] y
y
lid: can't exec `emacs -nw': Datei oder Verzeichnis nicht gefunden

It is common that the EDITOR variable contains the beginning of a shell
command line, i.e. a program name with options. The "cvs" command for
example understands this perfectly fine.

The "eid" command should support EDITOR="emacs -nw" as well.

There are two possible implementations:
  - parse the value of $EDITOR, like a shell would do, and use the exec()
    system call,
  - construct a shell command line from $EDITOR and the file names (using
    proper quoting for spaces, backslashes or quotes in the file names),
    and execute it using system().

Bruno