[liblouis-liblouisxml] Re: UK grade 1 table
- From: "John J. Boyer" <johnjboyer@xxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Wed, 18 Mar 2009 20:22:55 -0500
Jonathan,
I did not make up the UK Grade 1 table. It is also an early one and was
made with no consideration for back-translation. The early tables are
usually bad. Semicolon should be handled as it is in en-us-g1.ctb with
the line "postpun ; 23".
I guess at some point we'll have to sit down and produce proper tables.
Right now I'm busy with the UK maths code. I'm starting almost from
scratch and won't use any of the old tables.
John
On Thu, Mar 19, 2009 at 01:58:48PM +1300, Jonathan Sharp wrote:
> Hi John,
>
>
>
> I have a question about en-gb-g1.utb. Some of the standard punctuation
> characters do not back-translate when using this table. For example,
> semicolon correctly forward-translates to '2' but the '2' does not get
> converted back to semicolon on back-translation. This occurs when the
> semicolon is at the end of a word and also when it is on its own. In the
> table semicolon is handled by the line:
>
>
>
> always ; 23
>
>
>
> The same problem occurs for colon, exclamation mark, question mark, period,
> etc. However, ampersand, tilde, and the square brackets, which also use the
> always opcode but result in two braille cells rather than one cell,
> back-translate OK.
>
>
>
> Is this a problem with the always opcode, or shouldn't it be used in this
> way?
>
>
>
> Jonathan
>
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