From that I see in postinstall script the only you need to do with cache.reg - is to create directory, and give it proper permissions 755 mask, i.e.:

mkdir -p /usr/local/etc/cachesys/cache.reg
chmod 755 /usr/local/etc/cachesys/cache.reg
ccontrol create ...

Docker is cool way to deploy and use versioned application, but, IMVHO, it's only applicable for the case when you have single executable or single script, which sets up environment and invoke you for some particular functionality. Like run particular version of compiler for build scenario. Or run continious integration scenario. Or run web front-end environment.

1 function - 1 container with 1 interactive executable is easy to convert to Docker. But not Cache, which is inherently multi-process. Luca has done a great thing in his https://hub.docker.com/r/zrml/intersystems-cachedb/ Docker container where he has wrappee whole environment (including control daemon, write daemon, journal daemon, etc) in 1 handy Docker container whith single entry point implemnted in Go as ccontainrmain but this is , hmm, ... not very effecient way to use Docker.

Containers is all about density of CPU/disk resources, and all the beauty of Docker is based upon the simplicity to run multiple user at the single host. Given this way of packing Cache' configuration to the single container (each user run whole set of Cache' control processes) you will get the worst scalability.

It would be much, much bettrer, if there would be 2 kinds of Cache' docker containers (ran via Swarm for example) where ther would be single control container, and multiple users containers (each connecting to their separate port and separate namespace). But, today, with current security implementation, there would be big, big problem - each user would be seeing whole configuration, which is kind of unexpected in the case of docker container hosting. 

Once, these security issues could be resolved there would be effeciet way to host Cache' under docker, but not before.

So you are using ODBC access in WinSQL to connect to CacheODBC source, from particular namespace...

Did you check you are using DSN pointing to the desired namespace? Did you check the bitness (32- or 64-bit) for DSN you use in WinSQL? 

Given the returned from Quote^%qcr expression you could use XECUTE to reevaluate the string, i.e.:

DEVLATEST:22:51:39:USER>set q= $$Quote^%qcr(lb)
 
DEVLATEST:22:51:54:USER>x "s u = "_q
 
DEVLATEST:22:52:30:USER>zw u
u=$lb(1,2,3,",",5)

Overseas it's still as bad as original 6seconds for Mark. At the moment total load time is 4 seconds, though "time-to-first-byte" (TTFB) for the 1st request is 0.9seconds (which is not instant, but good enough).

The page is still heavy (57 requests and 1.6MB payload), and Drupal devs should pay attention to this large number of files involved.

And what is the version of Cache', is it 32-bit similarly? 

Good question. There, on docs.intersystems.com, is set of documentations acompanying each version of Caché released so far. And for each version yu could find "Release Notes" which contains teh list of changes introduced to the language, among the other changes (see Release Notes for 2015.2 as an example)

I would need to go and collect all changes for all releases... if documentation team would not do it for you already :)

The recentmost release notes has all the changes since Caché 5.1. The only you need to do now is to go thru the newest list (from 2016.2FT) and to find those relevant changes for ObjectScript compiler or depretaion warnings.

Saved but not compiled.

I'd expect it supported via this set of share tools

but apparently it just sends the link to the given address. Ok, you need page scraper then - and the easiest tool for this I know is uKeeper by Umputun (very famous in Russian IT podcaster, one of voices of "Radio-T" podcast).

P.S.

It's quite normal for all "share-buttons" to just send a link with title and not sending full content, they are all intending to be used in social networks where text length limitation is the major factor.

If you need article content to get delivered to your email "inbox" - use RSS subscriptions and RSS-enabled mailer. Like Microsoft Outlook :)