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cpeel
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Mar 13, 2026
Find the main document language (<html lang="xx"). Report as the main document language. Find any lang="xx" tag anywhere in the document, report a list of found languages. Use IANA lang subtag registry to provide friendly names. Also used to help validate languages - any language code not found in the registry is flagged as a warning so the user can double-check it's correct. Add a script to build JSON file from IANA lang subtag registry; pphtml uses the pre-built JSON.
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Find the main document language (
<html lang="xx") and report it.Find any
lang="xx"tag anywhere in the document, report a list of found languages.Use the IANA lang subtag registry to provide friendly names (
en→English). Also used to help validate languages: if the language code isn't found in the registry, it's flagged for review.This feature is a rough port (with improvements) from the PPtools site's HTML check tool.
Testing Notes:
Main language:
A document has only ONE main language, defined in the
<html>tag.langattribute on the<html>tag and check the main language changes.cx): main language should be marked WARNlangattribute: main language should be marked FAIL<html xml:lang="en" lang="en" ...>Secondary languages:
Any HTML tag may have a
langattribute (per the HTML spec). Addlangattributes anywhere you like. A list of all found languages should be produced in the report.langthat's the same language as the main document. It should appear in the report.langthroughout the document, they should be reported.langis used on multiple HTML elements, it will only be reported once.langon the same line of the file to ensure they're all found.fr (French)).