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From: Ted Dennison <dennison@telepath.com>
Newsgroups: comp.lang.ada
Subject: Re: In Plain Text: Tags.Internal_Tag(String'Input(Stream)) ??
Date: Thu, 28 Dec 2000 15:54:33 GMT
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In article <3A4B557F.F167C8E@home.com>,
  "Warren W. Gay VE3WWG" <ve3wwg@home.com> wrote:
> (Apologies re: the prior post in HTML, here again in plain:)
>
> I want to read in WAVE file chunks using the S'Class'Input() facility.
> Each WAVE chunk starts with a String(1..4) that identifies the chunk.
> I have set up the external representation of each tagged record to
> match this chunk ID, for example:
>
>    for Riff_Form'External_Tag use "RIFF";
>
> However, the difficulty now is that I want to override the way the
> Tag is read in (the Tag length is ALWAYS 4 bytes here). The Ada
> implementation attempts to read in the lower bound and upper
> bound of the Tag string first [ See ref to the note about
> Tags.Internal_Tag(String'Input(Stream))  below ].
>
> I would prefer not to override String'Input since this would affect
> it's behavour for all strings.

You might have better luck creating your own custom stream type for WAV
data.

--
T.E.D.

http://www.telepath.com/~dennison/Ted/TED.html


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