On 05/31/2017 10:00 PM, Hans Hagen wrote:
> On 5/31/2017 8:51 PM, Pablo Rodriguez wrote:
>> Dear list,
>>
>> I need to add checksums to files I attach to PDF documents.
>> [...]
>> Directories are a problem here. I mean, \shatwo{Desktop/i-context.pdf}
>> cannot work in Windows.
>>
>> Which would be the way to make it work in Windows?
Many thanks for your code, Hans.
Pablo
> \starttext
> \startluacode
> local function sha(cmd,name)
> local f = io.popen(string.format("%s -b %q",cmd,name),"rb")
> if f then
> local s = f:read("*a")
> f:close()
> -- s = string.longtostring(s)
> return string.match(s,"%s*([A-Fa-f0-9]+)")
> end
> end
>
> function document.sha256(name)
> local ok = sha("sha256sum",name)
> if ok then
> context(ok)
> end
> end
>
> function document.sha512(name)
> local ok = sha("sha512sum",name)
> if ok then
> context(ok)
> end
> end
> \stopluacode
>
> \def\shatwo #1{\ctxlua{document.sha256("#1")}}
> \def\shafive#1{\ctxlua{document.sha512("#1")}}
>
> \shafive{fd.pdf}
> \shafive{foo/fd.pdf}
>
> \stoptext
--
http://www.ousia.tk
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