From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Hans van der Meer <havdmeer@ziggo.nl>
Subject: Re: Bug in Luatex file handling?
Date: Tue, 15 Jun 2021 15:37:41 +0200 [thread overview]
Message-ID: <949d9b9c-9390-7d29-279f-6e36b62217e3@xs4all.nl> (raw)
In-Reply-To: <9F0DB6E4-5588-4829-8642-931F14EF472B@ziggo.nl>
On 6/15/2021 2:38 PM, Hans van der Meer wrote:
> This I cannot explain. Opening a file directly from its full name in a
> string succeeds. But doing the same from a parameter transferred from
> ConteXt to Lua succeeds if the file is in one directory deeper but fails
> if the file is two directories deeper.
> I suspect there is something not ok in LuaTeX.
> The lines with .... and >>>> directly come from print statements
> inserted in the Lua code.
>
> dr. Hans van der Meer
>
> Open file in directory 1 and 2 levels deep - direct call succeeds
> ..........io.open("events/hga-0372-345-62.xml","r")=>file (0x7fff97415f88)
> ..........io.open("events/transcripten/hga-0372-345-62.xml","r")=>file
> (0x7fff97416020)
>
> Idem but now from parameter filename transferred from ConTeXt into Lua:
> Open file one level deeper succeeds (printed filename comes from the call):
> >>>>>>>>>>io.open(filename,"r")
> filename=events/hga-0372-1764-63.xml=>file (0x7fff974160b8)
> Open file two levels deeper fails:
> >>>>>>>>>>io.open(filename,"r")
> filename=events/transcripten/hga-0372-1764-63.xml=>nil
>
> Caller:
> \def\FileExist#1{\cldcontext{hvdm.existfile([===[#1]===])}}
> Lua code:
> hvdm.existfile = function (filename)
> -- The test code was inserted here --
> local file = io.open(filename, "r")
> if file then
> file:close()
> end
> return file ~= nil and "true" or "false"
> end
does lfs.isfile(name) work?
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prev parent reply other threads:[~2021-06-15 13:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 12:38 Hans van der Meer
2021-06-15 13:37 ` Hans Hagen [this message]
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