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Re: Problem with truncated string ports - more info
From: |
Mark H Weaver |
Subject: |
Re: Problem with truncated string ports - more info |
Date: |
Fri, 21 Jun 2013 16:03:32 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Hi Brent,
Would you be willing to help debug this a bit? It would be useful to
put a breakpoint at 'scm_strport_to_string' in libguile/strports.c in
the case where a truncated string is returned.
After 'pt' is initialized, what's the value of 'pt->read_buf_size'? It
should be the number of bytes in the string, when encoded using the port
encoding of the string port. If this is too small, then it indicates a
problem in strports.c.
If 'pt->read_buf_size' is correct, then step into 'scm_from_stringn',
which in turn calls 'u32_conv_from_encoding', which is part of
libunistring. See if something is going wrong in there. After calling
'u32_conv_from_encoding', 'u32len' should be the number of characters in
the string. If it's short, then that suggests a problem in
libunistring. Did you run "make check" in libunistring?
Thanks,
Mark