Re: [NTG-context] hash for buffer contents

[Pablo Rodriguez via ntg-context]

On 9/22/22 00:26, Max Chernoff via ntg-context wrote:
> Hi Pablo,
>
>> Is there any way to get "utilities.sha2.hash512" with the contents of
>> the "abc" buffer?
>
> You can use "buffers.getcontent" or "buffers.raw":

Many thanks for your reply, Max.

This is exactly what I needed.

>\starttext
>\startluacode
>require("util-sha")
>
>local content = buffers.getcontent("test")
>-- local content = buffers.raw("test") -- same result
>local sha512 = utilities.sha2.hash512(content)
>context(sha512)
>\stopluacode
>\stoptext
>
> Depending on what you're trying to do, the "filter" module may be
> helpful here.

I think the following function is just fine for me:

  \startbuffer[test]
  just a test
  \stopbuffer

  \starttext
  \startluacode
require("util-sha")

function document.sha512buffer(buffer)
  return utilities.sha2.hash512(buffers.raw(buffer))
end
  \stopluacode

  \def\shabuffer#1
{\cldcontext{document.sha512buffer("#1")}}

  \shabuffer{test}

  \stoptext

Many thanks for your help again,

Pablo
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Re: [NTG-context] hash for buffer contents

[Max Chernoff via ntg-context]

Hi Pablo,

> Is there any way to get "utilities.sha2.hash512" with the contents of
> the "abc" buffer?

You can use "buffers.getcontent" or "buffers.raw":

   \startbuffer[test]
   One
   Two
   Three
   \stopbuffer[test]
   
   \starttext
   \startluacode
   require("util-sha")
   
   local content = buffers.getcontent("test")
   -- local content = buffers.raw("test") -- same result
   local sha512 = utilities.sha2.hash512(content)
   context(sha512)
   \stopluacode
   \stoptext

Depending on what you're trying to do, the "filter" module may be
helpful here.

-- Max
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[NTG-context] hash for buffer contents

[Pablo Rodriguez via ntg-context]

Dear list,

I have the following sample:

  \ctxlua{require("util-sha")}

  \starttext

  \startbuffer[abc]
  samples
  \stopbuffer

  \cldcontext{utilities.sha2.hash512("buffer-name")}
  \stoptext

Is there any way to get "utilities.sha2.hash512" with the contents of
the "abc" buffer?

Many thanks for your help,

Pablo
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