20 lines
629 B
Racket
20 lines
629 B
Racket
#lang racket/signature
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(struct communicator (sender receiver server port))
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connect-to-server connect-to-server* disconnect-from-server
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authenticate-user open-news-group
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head-of-message body-of-message
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newnews-since generic-message-command
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make-desired-header extract-desired-headers
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(struct nntp ())
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(struct unexpected-response (code text))
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(struct bad-status-line (line))
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(struct premature-close (communicator))
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(struct bad-newsgroup-line (line))
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(struct non-existent-group (group))
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(struct article-not-in-group (article))
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(struct no-group-selected ())
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(struct article-not-found (article))
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(struct authentication-rejected ())
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