Thanks for starting working on this...
> Instead of using %fricas, we can use a fold tag which is unlikely to
> be used in FriCAS code such as perhaps %fri_cas.
The problem can be seen here... Things that start with % is valid input.
% refers to the last output. %%(n) refers to the n-th output.
Actually, I find it strange that % is used in identifiers, but %pi, for
example, is the standard way to refer to \pi.
A dot or a closing parenthesis instead of % could be an option
Ralf
# start fricas...
fricas
Checking for foreign routines
AXIOM="/home/hemmecke/software/lib/fricas/target/i686-pc-linux"
spad-lib="/home/hemmecke/software/lib/fricas/target/i686-pc-linux/lib/libspad.so"
foreign routines found
openServer result 0
FriCAS (AXIOM fork) Computer Algebra System
Version: FriCAS 2010-01-08
Timestamp: Tuesday March 16, 2010 at 20:31:54
-----------------------------------------------------------------------------
Issue )copyright to view copyright notices.
Issue )summary for a summary of useful system commands.
Issue )quit to leave FriCAS and return to shell.
-----------------------------------------------------------------------------
(1) ->
(1) -> %3
(1) %3
Type: Variable(%3)
(2) -> %fri_cas
(2) %fricas
Type: Variable(%fricas)
(8) -> .fricas
Line 1: .fricas
A
Error A: Improper syntax.
1 error(s) parsing
(9) -> )fricas
Your argument list is not valid.
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