Implementation of RFC 64 - Parser Overhaul

[sdlime]

This is a ticket to track the implementation of RFC 64, a major overhaul of the MapServer expression parser.

Steve

[sdlime]

Initial merge done with r10792. Assefa needs to merge his WXS modifications and I still have the following tasks:

• context expressions (e.g. requires/labelrequires)
• raster expressions
• GEOMTRANSFORM writing

Steve

[sdlime]

FYI... r10793 contains a couple of file changes I missed with r10792.

[sdlime]

Nuts, I forgot to merge the query changes (new method) with that original batch. r10827 and r10828 contain those changes. Basically this adds msQueryByFilter() to mapquery.c and exposes it (mostly for testing) via SWIG MapScript as queryByFilter for map and layer objects.

Steve

[assefa]

merge for the filter encoding done on r10916 and r10917

[assefa]

Steve,

what operators should I use for case insensitve filter requests for Equal and isLike? I use now == for PropertyIsEqualTo and ~* for PropertyIsLike

Thx

[sdlime]

Replying to assefa:

Steve,

what operators should I use for case insensitve filter requests for Equal and isLike? I use now == for PropertyIsEqualTo and ~* for PropertyIsLike

Thx

For use =* for is PropertyIsEqualTo and ~* PropertyIsLike. The * signals the case-insensitive comparison. Note the ~ is a regex operator... Make sense?

Steve

[assefa]

Steve I am not I understand since my tests do not work for PropertyIsLike case sensitive

PropertyIsEqualTo works as expected with the following settings:

"[Attribue]" =* "value"  /*for case insenstive*/
"[Attribue]" == "value"  /*for case senstive*/

For PropertyIsLike I tried to set the filters like this

"[Attribue]" ~* "value-regex"  /*for case insensitive*/: works
"[Attribue]" =~ "value-regex"  /*for case sensitive*/ : does not work

Note that the by "value-regex", I mean that things like wild card '*', ... are included in it. What is the operator I need to use for case sensitive?

[sdlime]

Use =, ~ to do case sensitive (== works but is deprecated in my mind). Use =*, ~* to do case insensitive.

Steve

[assefa]

Thanks. It works. committed in r10918

[sdlime]

Moving this to documentation. Need to figure out how best to do that... -Steve

[havatv]

I have been doing some updates to the expression document, and also to related documents (in r11858, r11889, r11895, r11973, r11974). It would be good if Steve could have a look and say what remains to be done before we can close this ticket.