[gambit-list] Line numbers in custom reader

Marc Feeley feeley at iro.umontreal.ca
Wed Jul 31 11:01:13 EDT 2013

On 2013-07-28, at 5:49 AM, Hendrik Boom <hendrik at topoi.pooq.com> wrote:

> I guess now I get to ask what ##source?, ##source-code, and ##source are.

A "source" object represents a source S-expression tagged with location information.  A source object has a source "code" (extracted with the ##source-code procedure) and a source "location" (extracted with the ##source-locat procedure).  The reader (the read procedure) can be configured to return a source object for the datum that is read rather that the usual representation.  For an example, see the end of this message:



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