[OS X TeX] fontenc documentation...

[Jean-Christophe Helary]

Frank,

Thank you very much for the link.

So, my new understanding is that we need both {fontenc} and {inputenc}  
because there are some non overlaping cases...

Which means:
1) {fontenc} and {inputenc} encodings come is pairs, like [T1] for  
{fontenc} and [latin1] for {inputenc}

2) considering the range of {inputenc} possible values, only European  
languages (including central and eastern) are covered by the {fontenc}/ 
{inputenc} pairs.


Still, I have trouble understanding why:

1) my "document 1" properly interpreted "\'e" without {fontenc}
2) my "document 2" properly interpreted "\'e" without {fontenc}
3) my "document 3" properly interpreted "é" without file encoding  
information


Jean-Christophe Helary

ps: I am still looking for formal {fontenc} reference in the MacTex  
package. Anybody has an idea where I can find that ?

On lundi 02 févr. 09, at 16:14, Franck Pastor wrote:

>
> Le 02-févr.-09 à 08:01, Jean-Christophe Helary a écrit :
>
>> Herbert,
>>
>> Thank you very much for your input.
>>
>> I understand the character set/encoding issue (independantly of  
>> TeX) and I understand the font issues in LaTeX. Well, I think I am  
>> starting to do.
>>
>> Now, let me reword my earlier question by showing you the following  
>> 3 documents:
>>
>>
>> Environment: Texshop 2.20, LaTeX (MacTeX 2008)
>> document saved in Western Latin-1
>>
>>
>> 1) no preamble at all
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>> \documentclass{article}
>> \begin{document}
>> all\'ee
>> allée
>> \end{document}
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> displays: [allée alle]
>>
>> -> can't interpret the Latin-1 character "é"
>>
>> That was expected, but I am suprised to see that "\'e" is correctly  
>> interpreted because as you wrote, and as the FAQ at:
>> http://www.tex.ac.uk/cgi-bin/texfaq2html?label=why-inp-font
>> says, the fontenc package, T1 option, is supposedly required to  
>> properly interpret such sequences.
>>
>>
>> 2) inputenc "latin1" added to the first document
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>> \documentclass{article}
>> \usepackage[latin1]{inputenc}
>> \begin{document}
>> all\'ee
>> allée
>> \end{document}
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> displays: [allée allée]
>>
>> -> properly inteprets both the "\'e" and the "é" characters
>>
>> Here again, no fontenc package but the sequence "\'e" is properly  
>> interpreted.
>>
>>
>> 3) fontenc "T1" added to the first document
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>> \documentclass{article}
>> \usepackage[T1]{fontenc}
>> \begin{document}
>> all\'ee
>> allée
>> \end{document}
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> displays: [allée allée]
>>
>> -> properly inteprets both the "\'e" and the "é" characters
>>
>> Here, fontenc would be expected to correctly intepret the "\'e"  
>> sequence but since there are no indications that the file is saved  
>> in Western Latin-1, I am surprised that the "é" is properly  
>> interpreted since the file is supposed to be "expected" in ascii by  
>> default as in the first document above...
>>
>>
>> Now, if you can give me explanations (and links to the  
>> documentation, that I still can't find in MacTex), that would  
>> greatly help my understanding !
>>
>>
>>
>>
>> Jean-Christophe Helary
>
>
> Latin 1 and T1 are two very close encodings, but they differ on some  
> characters. Try to compile (with encoding latin1):
>
> \documentclass{article}
> \usepackage[T1]{fontenc}
> \begin{document}
> Lettre ß .Voilà : « une citation » à L'haÿ-les-Roses.
> \end{document}
>
> And see the problems ;-)
>
> See this thread on fr.comp.text.tex and the explanations by Manuel  
> Pégourié-Gonard (message 8) here:
> http://groups.google.com/group/fr.comp.text.tex/browse_frm/thread/aea97a62a46e812b/a410ed273e1ebed5?hl=en&lnk=gst&q=latin1#a410ed273e1ebed5
>
>
>
>
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