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Convert the FAQ from FML to Markdown - #841

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slachiewicz merged 2 commits into
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faq-to-markdown
Aug 10, 2026
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Convert the FAQ from FML to Markdown#841
slachiewicz merged 2 commits into
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faq-to-markdown

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Part of an estate-wide move of the remaining FAQ pages from FML to Markdown. FML is a
FAQ-specific Doxia format with no Markdown counterpart and doxia-converter cannot target
it, so the page is hand-written rather than converted.

Two commits, deliberately

  1. A pure rename, src/site/fml/faq.fmlsrc/site/markdown/faq.md, no content change.
  2. The rewrite.

Git records a rename plus a rewrite in a single commit as a delete and an add, which stops
git log --follow. Splitting them keeps the history.
Please merge or rebase rather than squash, since squashing collapses the rename again.

Anchors are preserved, and that is the point

This page has been on maven.apache.org for years and is linked from outside, so no URL may
change. FML derives its anchor from the <faq id=…> attribute — and where that attribute
is not a valid XML name, DoxiaUtils.encodeId rewrites it at render time. Markdown
headings would instead get an anchor derived from the question text, which is a different
string. So the <a name> written here reproduces the anchor the live site serves today,
not the raw attribute.

Verification

Built the site before and after and compared the set of anchors the generated faq.html
actually serves:

anchors served
before two-executions, top, bodyColumn
after the same three, plus two heading-derived ids

Every anchor present before is still present after — the set only grows. The <head> is
byte-identical, so the title and metadata are unchanged. site.xml needs no edit:
src/site/fml/faq.fml and src/site/markdown/faq.md both render to faq.html.

What is lost

FML generates a [top] back-link after each answer; those are dropped rather than
hand-written. The question now renders as an h3 heading instead of a definition term.
Those are the only rendering differences.

Note for reviewers

This touches src/site/fml/faq.fml, which #826 also edits. Whichever lands first, I am
happy to rebase this on top of it — the wording changes there apply cleanly to the
Markdown, and none of them affect an anchor.

Drafted with Claude — please verify

Git records a rename plus a rewrite in one commit as a delete and an
add, which stops 'git log --follow'. Splitting the rename out keeps the
history. Please merge or rebase rather than squash.

Generated-by: Claude Opus 5 (1M context)
doxia-converter cannot target FML usefully - the questions come out as
link-reference syntax rather than headings, the [top] back-links become
links to a nonexistent 'top' page, and the contents links lose their #
anchors. The page is written out by hand instead.

Explicit anchors keep the existing deep links working. The <a name>
emitted here reproduces the anchor the rendered page serves today, not
the raw <faq id> attribute, which FML rewrites whenever it is not a
valid XML name.

Verified by building the site before and after and comparing the set of
anchors the generated faq.html actually serves. Every anchor present
before is still present after:

  before: two-executions, top, bodyColumn
  after:  the same three, plus two heading-derived ids

The <head> is byte-identical, so the title and metadata are unchanged.
site.xml needs no edit - src/site/fml/faq.fml and
src/site/markdown/faq.md both render to faq.html.

FML generates a [top] back-link after each answer; those are dropped
rather than hand-written. The question now renders as an h3 heading
instead of a definition term. Those are the only rendering losses.

Generated-by: Claude Opus 5 (1M context)
@slachiewicz slachiewicz added the documentation Improvements or additions to documentation label Aug 9, 2026
@slachiewicz
slachiewicz marked this pull request as ready for review August 10, 2026 00:37
@slachiewicz
slachiewicz merged commit eb835af into master Aug 10, 2026
14 of 16 checks passed
@slachiewicz
slachiewicz deleted the faq-to-markdown branch August 10, 2026 00:37
@github-actions github-actions Bot added this to the 3.6.3 milestone Aug 10, 2026
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