[XeTeX] xunicode and TIPA

[Ross Moore]

Hi Ulrike and Alan,

On 29/07/2010, at 4:03 AM, Ulrike Fischer wrote:

>> I know the definition for the IPA environment isn't correct; what I  
>> want is characters inside that environment to be interpreted in the  
>> same way that they are within the \textipa command provided by xunicode.
> 
> You must use a name with small letters for your environment (tipa
> activates the others)
> 
> \documentclass{article}
> \usepackage{xltxtra}
> \newfontfamily{\ipafont}{Doulos SIL}
> \def\useTIPAfont{\ipafont}
> \newenvironment{ipa}{%
>  \let\stone\TIPAstonebar
>  \let\tone\TIPAtonebar
>  \setTIPAcatcodes\activatetipa
>  \csname useTIPAfont\endcsname
>  }{} 
> \begin{document}
> \textipa{RPAQIOE} % This will give you correct phonetic characters
> \begin{ipa}
> RPAQIOE
> \end{ipa}
> 
> \end{document}

You can take the extra step to be able to use 
  \begin{IPA}
   ...
  \end{IPA}

viz.

>>> \documentclass{article}
>>> \usepackage{xltxtra}
>>> \newfontfamily{\ipafont}{Doulos SIL}
>>> \def\useTIPAfont{\ipafont}
>>> \newenvironment{ipa}{%
>>>  \let\stone\TIPAstonebar
>>>  \let\tone\TIPAtonebar
>>>  \setTIPAcatcodes\activatetipa
>>>  \useTIPAfont  % no need for \csname  here
>>>  }{} 
>>> \let\realend\end
>>> \let\endIPA\endipa
>>> \def\IPA{\let\end\ipaspecialend\ipa}% change how \end  works inside IPA envs
>>> \def\endendipa{\end{IPA}}
>>> {\catcode`I = \active \catcode`P = \active \catcode`A= \active
>>>   \gdef\foundendipa{IPA}%
>>>   \gdef\ipaspecialend#1{\def\testforipa{#1}%
>>>    \ifx \testforipa \foundendipa\expandafter\endendipa
>>>    \else\realend{#1}%
>>>    \fi}%
>>> }% end of \catcode  changes 
>>> 
>>> \begin{document}
>>> \textipa{RPAQIOE} % This will give you correct phonetic characters
>>> \begin{ipa}
>>> RPAQIOE
>>> \end{ipa}
>>> 
>>> RPAQIOE
>>> 
>>> \begin{IPA}% So will this!
>>> RPAQIOE
>>> \end{IPA}
>>> 
>>> \end{document}

But do *not* try to nest these environments.
If you have macros expanding to use such environments,
then there is no guarantee that these will work properly.

I think they will, since the definitions will have been
made with non-active letters, but have not tested it.

Writing out IPA environments into auxiliary files is
almost certain to *not* work. 
But test it, if you need this kind of feature.


> -- 
> Ulrike Fischer 


Hope this helps,

	Ross


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Ross Moore                                       ross.moore at mq.edu.au 
Mathematics Department                           office: E7A-419      
Macquarie University                             tel: +61 (0)2 9850 8955
Sydney, Australia  2109                          fax: +61 (0)2 9850 8114
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