Manila syndication error: array out of range - problem solved

[Jim Byrne]

In case anyone else comes across this problem with Manila syndication - her=
e
is why it happens and how to avoid it.

The Manila syndication script uses string.patternMatch() which is case
sensitive - the script expects to find only lower case tags. I used upper
case HTML tags and got caught out. Correct me if I'm wrong but this seems
like a bug. No?

From now on I need to remember that when adding to my news - USE LOWER CASE
TAGS.

All the best,
Jim


on 21/11/01 5:21 pm, Jim Byrne at j.byrne@gcal.ac.uk wrote:

> on 19/11/01 3:49 pm, Jim Byrne at j.byrne@gcal.ac.uk wrote:
>=20
>> I have turned on syndication for my Manila site. But when I point
>> to the file=20
>> http://www.ispn.gcal.ac.uk:81/makingconnections/xml/scriptingNews2.xml I=
 get
>> the following error message:
>>=20
>> <?xml version=3D"1.0" ?>
>> =A0 <error>Array index is out of range. The list "lines" doesn't have an i=
tem
>> #3.</error>
>>=20
>> I have looked in the scriptingNews2.xml script which is in the xml table=
 of
>> my makingconnections Manila Website - but it doesn't seem to be running =
that
>> script at all. What script is it running? How do I debug it?
>>=20
>=20
> There error is somewhere in the bundle below ( of the script
> getScriptingNewsXml) - four urls are being returned and only 3 pieces of
> text for the links:
>=20
> on extractLinks (s, adrLinks, adrLines) {
> local (links =3D {}, lines =3D {}, pat =3D "<a href=3D\"", ix, leftHalf);
> s =3D html.processMacros (s, true, pta);
> loop {
> ix =3D string.patternMatch (pat, s);
> if ix =3D=3D 0 {
> break};
> leftHalf =3D string.mid (s, 1, ix - 1);
> s =3D string.delete (s, 1, ix + sizeOf (pat) - 1);
> ix =3D string.patternMatch ("\"", s); //the end of the url
> url =3D string.mid (s, 1, ix - 1);
> s =3D string.delete (s, 1, ix);
> ix =3D string.patternMatch (">", s); //PBS 11/1/00: find end of
> opening a tag
> s =3D string.delete (s, 1, ix);
> if s [1] =3D=3D ">" {
> s =3D string.delete (s, 1, 1)};
> ix =3D string.patternMatch ("</a>", s);
> lineText =3D string.mid (s, 1, ix - 1);
> s =3D s - "</a>";
> s =3D leftHalf + s;
> links =3D links + url;
> lines =3D lines + lineText};
> adrLinks^ =3D links;
> adrLines^ =3D lines;
> return (s)}
>=20
> Is this a bug? If so can someone look into it please.
>=20
> Thanks,
> Jim

=20
--=20
Jim Byrne Project Director, The Making Connections Unit, Glasgow Caledonian
University, Glasgow G4 OBA, 0141 331 3893

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