small suggestion for image-reader.lisp

[Christian Lynbech]

While mucking around with the image-reader I came up something a
little more robust for handling comments in pnm files. The idea is to
use a readtable with '#' marked as a comment character.

With this patch the three attached sample pnm files should evaluate to
the same image.

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Name: t0.pnm
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Desc: sample pnm image without comments
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Desc: sample pnm image with a simple comment
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Desc: sample pnm image with a little more sophisticated comments 
URL: <https://mailman.common-lisp.net/pipermail/eclipse-devel/attachments/20030209/e98fbdac/attachment-0002.pnm>
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Christian Lynbech       | email: christian at defun.dk
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Hit the philistines three times over the head with the Elisp reference manual.
                                        - petonic at hal.com (Michael A. Petonic)