#743 numericalio with gcl

[Andrej Vodopivec]

The cvs version of numericalio does not work with gcl:

(%i2) A : read_matrix("data.dat", csv);
Maxima encountered a Lisp error:
Error in SETF [or a callee]: Cannot expand the SETF
form (READTABLE-CASE

LOCAL-TABLE).
Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.
(%i3) build_info()$
Maxima version: 5.9.1.1cvs
Maxima build date: 8:6 5/20/2005
host type: i686-pc-linux-gnu
lisp-implementation-type: Kyoto Common Lisp
lisp-implementation-version: GCL 2.6.5

[Robert Dodier]

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The problem is caused by the lack of readtable-case in GCL.
I will work on a fix.

[Robert Dodier]

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I'm attaching a diff of numericalio.lisp which removes the
use of readtable-case. If the data file does not contain any
symbolic atoms then the patched version should work OK. (The
patched version will read symbols OK, but it converts them
all to lowercase.) I'm still planning to figure out a way to
get GCL to respect input case (without making use of
readtable-case).

[Robert Dodier]

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I've committed a new revision of numericalio.lisp to CVS
that should work OK with gcl. I've tested it with my own
copy of Maxima/gcl, and I'll close this bug after I get a
confirmation from someone else that it works.

[Robert Dodier]

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I've gotten a response from someone else that the current
revision of numericalio.lisp works on GCL Maxima. Closing
this bug report.