Re: [cgmo-webcgm] Regular Expressions

[Lofton Henderson <lofton@rockynet.com>]

At 01:30 PM 10/26/2007 -0400, Bezaire, Benoit wrote:
> [...]
> I'm starting work on my regex action item. I'm slightly confused though. I'm confused by what is needed. Once again, we are short on requirements. What I have to go on is "regex APS addressing: via regex in 'apsid' and/or 'name'.
>  
> That one line description however, doesn't seem to match our user requirements all that well.

Hopefully Dieter can jump in here.  As I recall, he was talking about this after we decided that text search -- content and/or RT elements -- would be "value-added" for viewers, as opposed to new standardized DOM entries.

More comments embedded...

>  
> So, here are our user requirements:
> - finding all APS (grobject, para, subpara)
> - finding APS which have a given substring in its 'id'.
> - finding APS which have a given substring in its 'name'.
> - finding APS which have a 'name' attribute.
> - finding APS which do not have a 'name' attribute.

The above are all handled with regex on name or id.

> - finding APS which have a tip equal to a given string.
> - finding APS which have a tip different than a given string.
> - finding APS which have a tip containing a given substring.
> - finding APS which have a tip.
> - finding APS which do not have a tip.

All handled via regex on 'screentip'.  So you raise a good point -- is this to be viewer "value-added", as we decided for the 'content' ApsAttr?  Or is it to be standardized in new DOM functionality.  (And if the latter ... how does this differ from 'content'.)

> - finding APS which have a given attribute equal to a given string.
> - finding APS which have a given attribute different than a given string.
> - finding APS which have a given attribute containing a given substring.

Same comment, generalized to "given attribute" instead of 'screentip'.  (And how does "given attribute" differ from 'content', as far as our decision process is concerned?

>  
> We also have some text searching requirements, but I think the group has agreed to leave that viewer dependent.

As I understood, the decision was based on text search that comprised searching 'content' ApsAttr and/or the strings within RestrText elements.  Do I understand that decision correctly?

>  
> I'd first like to know what people had in mind when talking about regex? Was it id/name only? Or something along the lines of what is seen above?

When Dieter proposed it in lieu of text searching (which we decided against), I thought it was restricted to 'name' and possibly 'apsid' as well.  Dieter?  (Others?).

-Lofton.