[Openmcl-devel] "potential numbers" as symbol names
bryan-openmcl at lunch.org
Wed Apr 20 18:45:39 UTC 2005
there's also this in 22.214.171.124:
"The syntax involving a leading package marker followed
by a potential number is not well-defined. The consequences
of the use of notation such as :1, :1/2, and :2^3 in a
position where an expression appropriate for read is expected
and then the colon-number cleanup which suggests the right
thing is to agree to disagree on how to define it.
maybe we should issue a style warning stating that :\1 is
preferred to (and more "well-defined" than) :1.
On Apr 20, 2005, at 11.34, Hamilton Link wrote:
> And actually 126.96.36.199 and 188.8.131.52.1 are better references.
> In it is included this gem: "If a potential number has number
> syntax, a number of the appropriate type is constructed and
> and 184.108.40.206.1 says that escaped characters in an otherwise
> potential number MUST prevent it from being a potential number, so
> this trick will always work.
> On Apr 20, 2005, at 12:21 PM, Hamilton Link wrote:
>> The token 3 is a potential number and as far as I can tell
>> shouldn't be a legit symbol. If the 3 is escaped, then it becomes
>> the legit symbol \3. In fact openmcl does accept :\3 as a keyword.
>> See 2.3.4 "Symbols as Tokens" in the hyperspec.
>> On Apr 19, 2005, at 10:05 PM, bryan o'connor wrote:
>>> kmr's new cl-photo package loses on openmcl because it
>>> wants to use some "potential number" symbols in the
>>> keyword package.
>>> ? :3
>>> > Error in process listener(1): Reader error: Illegal symbol syntax.
>>> > While executing: CCL::%PARSE-TOKEN
>>> assuming that :3 and package::3 are both valid things,
>>> the patch below will allow them.
>>> i'm having problem accessing the cvs server, so this
>>> patch is diff'd against an emacs backup file. it might
>>> not apply cleanly.
>>> Openmcl-devel mailing list
>>> Openmcl-devel at clozure.com
>> Openmcl-devel mailing list
>> Openmcl-devel at clozure.com
More information about the Openmcl-devel