[Groff] strange if "..."..." behaviour

[Werner LEMBERG]

Consider the following code snippet:


.ds xx \fR|\fP
.ie "|"\*(xx" \
.  tm true
.el \
.  tm false


Would you expect that the result is `true'?  I didn't.

The original troff manual says:

  ... if the strings compare identically (including motions and
  character size and font), _anything_ is accepted as input ...

I would interpret this that the comparison is done by a simple
strcmp(), and not interpreting the strings.  Can someone please check
this with an original AT&T troff?


    Werner