tilde

[David Relson]

On Thu, 11 Dec 2003 14:54:22 +0100
Boris 'pi' Piwinger <3.14 at logic.univie.ac.at> wrote:

> Boris 'pi' Piwinger wrote:
> 
> >>> I believe the reason are TOKENs like F~R~E~E. That makes
> >>> sense, but I don't have a strong opinion here.
> >> 
> >> Unfortunately there are also "F*R*E*E", "F R E E", etc.
> > 
> > Right, we allow some of the and some not.
> 
> While we are at it. Right now we have:
> TOKENFRONT
> [^[:blank:][:cntrl:][:digit:][:punct:]]
> TOKENMID
> [^[:blank:][:cntrl:]<>;=():&%$#@+|/~\\{}^\"?*,\[\]]+
> TOKENBACK
> [^[:blank:][:cntrl:]<>;=():&%$#@+|/~\\{}^\"?*,\[\]._\'\`\-]
> 
> So TOKENBACK is TOKENFRONT plus digits and exclamation point.
> 
> TOKENMID is TOKENBACK plus "._'`-". There is certainly
> justification for them, well ` would be a typo in a word,
> but it is very common. So I think we can live with that. But
> one could also argue that _ does not show up in "real
> words", . only in abbreviations like "i.e.". But looking at
> it ~ would not really fit, so it seems reasonable to take it
> out.
> 
> pi

Works for me.  tilde will be allowed in the middle of tokens, but not at
the end.