The original Wiki documentation at
https://cumuluswiki.org/a/Webtags as created by David Jamieson and edited by Mark Crossley and Steve Loft, did make it clear that "MMM" would output the
Short Month Format, and that was determined by Language settings for your locale.
When that was written, only the original Cumulus was available, and that ran only on Microsoft Windows. Working with Steve Loft, I did edit the page to cover his MX 3.0.0 beta. That was when I redesigned the big table to have separate columns for 1.9.4 and 3.0.0, plus a column for examples. I explicitly said they were British locale examples.
However, when Mark Crossley took over MX development, so much changed on web tags (both new tags and new parameters) that the page became a bit of a mess. . Mark (and others) did make a few amendments to the page to cover some new tags, but I gave up tracking the effects of release announcements in June 2020.
billy wrote: ↑Sun 11 Apr 2021 4:43 am
<#StormRainStart format="%d MMM"> produces "11 Apr." (at least today).
I don't want the full stop / period.
All other web tags with a date (that I use) produce the full stop when formatted with MMM - at least in my hands.
I can massage the output to get rid of it, but all documentation about MMM that I have read does not show a full stop in the example output. So what am I missing?
Some people will have noticed that after Ken True gave me administrative access to the Wiki, I have found some odd moments to make great strides in restructuring it, (hoping that will make it easier for others to update it). Two of my objectives were:
1) To start the separation of pages for MX and pages for legacy Cumulus, to make it easier for users who have interest in only one flavour
2) To break large pages up into smaller pages (by taking the text off line, and reorganising it, before pasting it back into Wiki)
It happens that I took the "webtags" page text offline a while ago, and have been restructuring it over recent months. The replacement 3 smaller pages ( I will leave readers to go and see the 3 replacement pages) have been recently pasted back into the Wiki. In terms of the new parameters page, the text that has now been pasted into place has a totally new, and hopefully much better layout, to explain all the parameters.
You will see
Webtags/ parameters does explain the locale issues better, as a response to previous discussion in the forum on this issue, but it happens it has proved to be anticipating your question.
EDIT: Updated link