Alan Baljeu writes:

...

?- ensure_loaded('C:\ciao-1.8p2Win32\tmp\test.pl').

yes ?- write('e\tf'). e f yes ?-

Surely it's prolog which interprets the single \ as an escape sequence? But 2 \ works okay.

What I get in Linux from your second query is

?- write('e\tf'). e f yes

because '\t' is passed to Ciao Prolog verbatim and interpreted as a tabular by Ciao Prolog; see also:

?- set_prolog_flag(write_strings, off).

yes ?- atom_codes('e\tf', X).

X = [101,9,102] ?

yes

where \t translates to the ninth ascii code (sorry about this low level parlance). However I guess that this is not what is happening in your case, i.e., Ciao Prolog is not receiving a backslash _and_ a 't', but some precooked code. Again, if this is so, it is the Emacs mode which should be change to behave properly under XEmacs.

MCL

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