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Guest
Posted: Mon Jun 16, 2008 2:49 pm Reply with quote
Guest
Random notes on R12B-3 (June 11, 2008) documentation
of the re module
http://www.erlang.org/doc/man/re.html

1. misspelling of 'be' in the sentence
"There should bee no need to go directly to the PCRE library documentation"

2. Need to define 'opaque' as used in
[code:1:4196c90123] mp() = Opaque datatype containing a compiled regular expression.Hopefully it means something other than as defined by
[url=http://www.merriam-webster.com/dictionary/opaque]http://www.merriam-webster.com/dictionary/opaque[/url]"2 a[b]:
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Guest
Posted: Mon Jun 16, 2008 3:07 pm Reply with quote
Guest
2008/6/16 Doug Edmunds <dougedmunds@gmail.com (dougedmunds@gmail.com)>:
Quote:
Random notes on R12B-3 (June 11, 2008) documentation
of the re module
http://www.erlang.org/doc/man/re.html

1. misspelling of 'be' in the sentence
"There should bee no need to go directly to the PCRE library documentation"

2. Need to define 'opaque' as used in
[code:1:a971fda409] mp() = Opaque datatype containing a compiled regular expression.Hopefully it means something other than as defined by

[url=http://www.merriam-webster.com/dictionary/opaque]http://www.merriam-webster.com/dictionary/opaque[/url]"2 a[b]:[/b]
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Guest
Posted: Mon Jun 16, 2008 3:13 pm Reply with quote
Guest
On Mon, 16 Jun 2008 16:46:17 +0200, Doug Edmunds <dougedmunds@gmail.com>
wrote:
> 2. Need to define 'opaque' as used in
>
> mp() = Opaque datatype containing a compiled regular expression.
>
> Hopefully it means something other than as defined by
> http://www.merriam-webster.com/dictionary/opaque

Meaning 1) actually makes good sense in this context.

"Opaque datatype" is commonly used to denote "datatype whose shape
is none of user's business". So the only way you're allowed to work
with the "mp()" type is 1. pass it around unaltered 2. invoke 're'
functions on it.

In other words, the type is "opaque" because as hard as you look,
you're never (supposed to be) able to see its internals.

> "2 a*:* hard to understand or explain <*opaque* prose>
> b*:* obtuse <http://www.merriam-webster.com/dictionary/obtuse>,
> thickheaded <http://www.merriam-webster.com/dictionary/thickheaded> "

Heh Smile

-- Jachym

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Guest
Posted: Mon Jun 16, 2008 3:13 pm Reply with quote
Guest
http://en.wiktionary.org/wiki/opaque:

"(computing) Describes a type for which higher-level callers have no
knowledge of data values or their representations; all operations are
carried out by the type's defined abstract operators."

/Sverker, Erlang/OTP Ericsson


Doug Edmunds wrote:
> Random notes on R12B-3 (June 11, 2008) documentation
> of the re module
> http://www.erlang.org/doc/man/re.html
>
> 1. misspelling of 'be' in the sentence
> "There should bee no need to go directly to the PCRE library documentation"
>
> 2. Need to define 'opaque' as used in
>
> mp() = Opaque datatype containing a compiled regular expression.
>
> Hopefully it means something other than as defined by
> http://www.merriam-webster.com/dictionary/opaque
>
> "2 a*:* hard to understand or explain <*opaque* prose>
> b*:* obtuse <http://www.merriam-webster.com/dictionary/obtuse>,
> thickheaded <http://www.merriam-webster.com/dictionary/thickheaded> "
>
> A link to where opaque is defined would be helpful.
>
> -dae
>
>
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>
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> erlang-questions@erlang.org
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Guest
Posted: Mon Jun 16, 2008 3:38 pm Reply with quote
Guest
On Mon, Jun 16, 2008 at 8:11 AM, Sverker Eriksson <sverker@erix.ericsson.se (sverker@erix.ericsson.se)> wrote:
Quote:
http://en.wiktionary.org/wiki/opaque:

"(computing) Describes a type for which higher-level callers have no knowledge of data values or their representations; all operations are carried out by the type's defined abstract operators."

/Sverker, Erlang/OTP Ericsson


Thanks.
The only other usage of opaque datatype that I find in the docs is
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