Re: Char To ASCII

• To: info-dylan@ai.mit.edu
• Subject: Re: Char To ASCII
• From: Hugh Greene <q@tardis.ed.ac.uk>
• Date: Sun, 12 Mar 2000 14:45:03 -0500 (EST)
• Organization: Division of Informatics, The University of Edinburgh
• References: <XhCy4.374$SRc1.1507367@news.xtra.co.nz> <brucehoult-1203001550280001@bruce.bgh>
• Xref: traf.lcs.mit.edu comp.lang.dylan:11620

On Sun, 12 Mar 2000, Bruce Hoult wrote:
> In article <XhCy4.374$SRc1.1507367@news.xtra.co.nz>, "Brett Sheeran"
> <bsheeran@xtra.co.nz> wrote:
> 
> > Can anyone tell me the syntax to convert a <character> to an ASCII value &
> > visa versa?
> 
> All type conversion in Dylan follow a standard pattern, using the "as"
> generic function:
> 
>    as(<character>, 65)    =>  'A'
> 
>    as(<integer>, ' ')     =>  32

Note that, although this is probably portable across all current
implementations, there's no *DRM-conformant* way to do this.  The DRM
specifies that methods from <character> to <integer> and back exist but
leave the behaviour undefined: they could use, say, EBCDIC and still be
compliant ;-)  Dylan really needs a better story about characters,
particularly Unicode ... 

-- Hugh

• Re: Char To ASCII
• From: Tom Emerson <tree@tiac.net>

• Char To ASCII
• From: "Brett Sheeran" <bsheeran@xtra.co.nz>
• Re: Char To ASCII
• From: brucehoult@pobox.com (Bruce Hoult)

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