On January 22, 2007 5:39 PM Arthur Ralfs wrote:
I want to retrieve the command from within spad code,
not from the command line
Thanks
Arthur Ralfs wrote:
Is it possible to retrieve axiom commands?
i.e. if I type in integrate(x**2,x) can I then get
that command back rather than the output from
the command?
Oh ok, that's different. I don't think there is an standard
interface to do this but you can resort to accessing the
underlying Boot/Lisp variable |$currentLine|. See documentation
about the Axiom interpreter "top level loop" here:
http://wiki.axiom-developer.org/axiom--test--1/src/interp/IntTopBoot
http://wiki.axiom-developer.org/axiom--test--1/src/interp/IntintLisp
For example:
(1) -> )lisp (print |$currentLine|)
")lisp (print |$currentLine|)"
Value = ")lisp (print |$currentLine|)"
(2) -> _$currentLine$Lisp
(2) _$currentLine$Lisp
Type: Sexpression
In SPAD you can write something like this:
--- File: CommandLine.spad ---
)abbrev package CL CommandLine
CommandLine(): Exports == Implementation where
Exports ==> with
current: () -> String
Implementation ==> add
current() ==
-- if $currentLine is a list, command is last entry
if list?(_$currentLine$Lisp)$SExpression then
string last(_$currentLine$Lisp)$Lisp
else
string _$currentLine$Lisp
--- end ---
(3) -> )co CommandLine.spad
Compiling AXIOM source code from file
...
(3) -> current()$CommandLine
Loading
/Documents and Settings/Administrator.ASUS/My Documents/CL.NRLIB/code
for package CommandLine
(3) "current()$CommandLine"
Type: String
Does that help?
Regards,
Bill Page.