Manual infra-estructure

Planned changes, big and small, that affect manual infrastructure and languages.

Configure

• List of active languages on `doc-base (#186)
• Nested/recursive XIncludes (#194)
• XInclude failures less fatal on translations (#196)
• XInclude by xml:id (#198)
• Include post validation tools on configure.php (broken, revtag, entities). (#241)
• XML Entities (#183) (#301)
• Smaller XML output (comments, DTD, namespaces, docbook wsi) (#321)
• Recreate --langs-dir on configure.php and sub scripts

Idempotent build

• Create doc-base/temp and .gitkeep it (#200)
• Rewrite file-entities.ent.in to use temp/ (#201)
• Change configure.php to be a little more idempotent (#202)
• Change manual.xml.in into stable manual.xml (#210)
• Move PhD files PhD repo (https://github.com/php/phd/pull/261)
• Move PhD files to doc-base/temp/
• Move .manual.xml to doc-base/temp/ (coordenate with PhD)
• Move remaining .gitignore files to temp/

Manual split and DTD entites

• Move manual.xml from doc-base to doc-en (#324)
• Move/merge XML files from doc-base to doc-en (https://github.com/php/doc-en/pull/5682)
• Move/convert entitiy files from doc-base to doc-en (https://github.com/php/doc-en/pull/5742)
• Minimize DTD inclusion on doc-base/manual.xml (#336)
• Erase manual.xml, funcindex.xml and global.ent from doc-base (#338)
• Remove all mentions of funcindex.xml from code (#338)
• Split, convert and delete language-snippets.ent

Recheck

• Single source revcheck (#111 #174 #176 #180)
• Sequential [skip-revcheck] (#178)
• Accidental [skip-revcheck] (#181)
• <?do-not-translate?> mark support on doc-base(#311)
• Annotate files on doc-en
• Remove file exclusions by name convention from revcheck lib (#319)
• "Do not translate" and "XML Broken" sections in revcheck (#334)

Performance/tools

• Avoid file entities for directories as individuai files (#218)
• Rewrite sync XML for Attributes (#215)
• Rewrite sync XML for Entities (#219)
• Rewrite sync XML for Processing Instructions (#222)
• Rewrite sync XML for Tags (#222)
• Rewrite sync XML for Whitespace (#222)
• Move generation of sources.xml and version.xml at the end of configure.php (#239)
• Sync XML tools to accept language parameter and simple file listing (#275)
• Do-not-translate mark, broken test and revtag parse in one file load (#339)

Clean up / TODOs

• Trim local repository status on configure.php (#205)
• Remove $mixin from doc-base/scripts/file-entities.php (#207)
• Remove BACKPORT from doc-base/scripts/file-entities.php (#213)
• Rewrote $mixin as an check/error on all OS (#213)
• Remove all mentions of <xi:fallback> in doc-en (https://github.com/php/doc-en/pull/5699)
• Block <xi:fallback> on doc-en (#332)

Future / R&D

• Make <?phpdoc more general
• Userland "XML assembler", that uses only XML Entities
• Recode CHM scripts (https://github.com/php/phd/issues/203)

Failed

• Native `DOMDocument->xinclude() (?)
• LIBXML_NOBLANKS (#304)
• LIBXML_NSCLEAN (#315)
• GitHub actions/checkout merge stuck in the past (#329)

This is a broad tracking checklist rather than a single change. Start by confirming which unchecked item is in scope, such as recreating --langs-dir in configure.php and its sub-scripts or moving generated files into doc-base/temp/. Done means completing the selected checklist item and updating the issue with its result.