On 08.06.2020 14:24, Rick McGuire wrote:
>
>
> On Mon, Jun 8, 2020 at 8:06 AM Rony G. Flatscher <rony.flatsc...@wu.ac.at
> <mailto:rony.flatsc...@wu.ac.at>> wrote:
>
> On 08.06.2020 13:39, Rick McGuire wrote:
>> My incubator version has named captures, and also has a new feature I've
>> not seen other regex
>> packages, reusable named patterns. For example, one of the standard
>> patterns is a URL:
>> pattern that has named elements like protocol, port, domain name, etc.
>> Rather than having to
>> copy and paste one of these patterns into your own, you can refer to
>> them by name. I'm a bit
>> stalled on the design of user pattern libraries at the moment, but this
>> is a very powerful
>> concept.
>>
>> While a regex can be incorporated into the PARSE instruction, it would
>> only be in a very
>> simplistic way. My implementation has a parsing context class that
>> supports everything the
>> PARSE instruction does and quite a bit more beyond what PARSE can do.
>
> Went into incubator/regex and loaded the programs: *wow*!
>
> Overwhelming from the functionality that is there already (currently
> there are 87 classes in
> regex.cls)!!
>
> Would it be already possible to parse xml elements (supplying the tag
> name and having the
> parser parse everything to the matching end tag, independently whether
> the tag name gets
> recursively used) with a single pattern?
>
> If such a thing is possible with a regex, then it should be possible with
> this version.
:)
>
> What would you suggest to study first in order to understand what you
> have created so far?
>
> No docs written for this at all. This was originally based on the Java
> version, so it follows that
> for most of the patterns. Probably the best place to start would be to look
> at what the test cases
> are doing.
Thank you for these hints!
Went to the test cases, however, currently there is something wrong with
regex.cls:
F:\work\svn\oorexx\incubator\regex>rexx Parser.testGroup
6229 *-* otherwise do
52 *-* ::requires "regex.cls"
Error 9 running F:\work\svn\oorexx\incubator\regex\regex.cls line 6229:
Unexpected WHEN or OTHERWISE.
Error 9.2: OTHERWISE has no corresponding SELECT.
---rony
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