From alexey.goldin at gmail.com  Wed Aug  2 14:37:38 2006
From: alexey.goldin at gmail.com (Alexey Goldin)
Date: Wed, 2 Aug 2006 09:37:38 -0500
Subject: [gzip-stream-devel] read-line
Message-ID: <fd08bc520608020737t5779ec2ar748cd04317337e65@mail.gmail.com>

Apparently read-line is not available yet. On sbcl:

(with-open-gzip-file (s "text.gz") (read-line s))

results in :

There is no applicable method for the generic function
  #<STANDARD-GENERIC-FUNCTION STREAM-READ-LINE (1)>
when called with arguments
  (#<GZIP-INPUT-STREAM {BC11CC9}>).
   [Condition of type SIMPLE-ERROR]

Restarts:
  0: [ABORT-REQUEST] Abort handling SLIME request.
  1: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread"
{B1F4EA9}>)

Backtrace:
  0: ((SB-PCL::FAST-METHOD NO-APPLICABLE-METHOD (T)) #<unavailable argument>
#<unavailable argument> #<STANDARD-GENERIC-FUNCTION STREAM-READ-LINE (1)>
(#<GZIP-INPUT-STREAM {BC11CC9}>))
  1: ((SB-PCL::FAST-METHOD NO-APPLICABLE-METHOD (T)) #<unavailable argument>
#<unavailable argument> #<STANDARD-GENERIC-FUNCTION STREAM-READ-LINE (1)>
(#<GZIP-INPUT-STREAM {BC11CC9}>))
  2: (READ-LINE #<GZIP-INPUT-STREAM {BC11CC9}> T NIL #<unused argument>)
  3: (NIL)
  4: (SB-INT:EVAL-IN-LEXENV (WITH-OPEN-GZIP-FILE (S "text.gz") (READ-LINE
S)) #<NULL-LEXENV>)

 I hope at some point I'll figure out how to provide stream-read-line (but
not today, I am fairly new at actually using CL)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.common-lisp.net/pipermail/gzip-stream-devel/attachments/20060802/5ceaf0c7/attachment.html>

From sean at guruhut.com  Wed Aug  2 20:55:56 2006
From: sean at guruhut.com (Sean Ross)
Date: Wed, 02 Aug 2006 22:55:56 +0200
Subject: [gzip-stream-devel] read-line
In-Reply-To: <fd08bc520608020737t5779ec2ar748cd04317337e65@mail.gmail.com>
References: <fd08bc520608020737t5779ec2ar748cd04317337e65@mail.gmail.com>
Message-ID: <44D1115C.1080503@guruhut.com>

Alexey Goldin wrote:
> Apparently read-line is not available yet. On sbcl:
> 
> (with-open-gzip-file (s "text.gz") (read-line s))
> 

Yeah, unfortunately the gzip-streams have an element-type of
'(unsigned-byte 8) and as such I didn't implement read-line on them,
i assumed (poorly) that there would be a more readable error than
no such applicable method.

as a workaround for now you should be able to use Edi Weitz's
excellent flexi-streams <http://cliki.net/flexi-streams> to
enable read-line usage.

eg.
(gzip-stream:with-open-gzip-file (s "e:/dapper.htm.gz")
   (setf s (flexi-streams:make-flexi-stream s))
   (read-line s))


This will be addressed sometime in the future.

Cheers,
  Sean.