Category:Lang and lang-xx template errors

This category is used to track and  template errors and other Module:Lang-related errors. This category is used only by Module:Lang.

See List of ISO 639 language codes for many modern languages: List of ISO 639-3 codes lists all the 3-letter codes.

Error messages
Module:Lang consolidates the processing of and most of the   templates. As part of that, the module emits error messages when the template parameters are used inappropriately or when the data assigned to the parameters is malformed. The error messages have the form:
 * [] (help link)

where  is the text supplied to the template and rendered without proper html markup. Error messages are defined here:

Italic markup errors
The text has italic markup error commonly occurs for these reasons:
 * 1)  includes text written with more than one alphabet
 * in this example, Ancient Greek with a Latin script transliteration (also called Romanization)
 * the above should be rewritten
 * → Ἀθῆναι
 * A similar condition may exist for languages that have multiple writing systems, where the second is not a transliteration of the first but the actual text as written in the 'other' writing system. For such templates, consider writing:
 * 1)  includes italic markup to override default italic markup set by the  template (see the settings box in the template doc §Usage section)
 * – 'Dumbairton' is a proper name so should not be italicized
 * the above should be rewritten
 * → Dumbairton
 * for languages like Kurdish that use more than one script and where the template default is to italicize
 * –  holds a script that should not be italicized
 * the above should be rewritten:
 * → هه‌ڵپه‌ركێ
 * (it is prudent to set rtl to  or   so that the template includes the correct html markup in the rendering)
 * when  holds Latin transliterations of right-to-left languages like Arabic (no Arabic script), consider setting Latn so that the template removes the default right-to-left html markup from the rendering and automatically renders in italics:
 * the above could be rewritten:
 * → min sallaf es-sabt lāqā el-ḥadd qiddāmūh
 * but, consider using the perhaps more semantically correct instead:
 * → Arabic: min sallaf es-sabt lāqā el-ḥadd qiddāmūh
 * 1)  includes italic wiki markup to 'turn off' italics for an inserted English-language conjunction between two non-English words or phrases:
 * in this example, an English-language conjunction, 'or', is inserted between two Lithuanian phrases; English is not Lithuanian so does not belong inside of the template:
 * the above should be rewritten:
 * → Rusijos lietuvių seimas Petrograde or Visos Rusijos lietuvių seimas
 * 1) When the template is or, consider removing the template; this is the English Wikipedia, it is not usually necessary to identify English text in the English Wikipedia as being English.
 * 2) Sometimes the inclusion of italic markup is just wrong.
 * For example, Cyrillic text is generally not to be rendered in italic font; see MOS:FOREIGNITALIC.
 * the above should be rewritten:
 * → Українська Народна Міліція
 * 1) Sometimes the inclusion of italic markup is just wrong.
 * For example, Cyrillic text is generally not to be rendered in italic font; see MOS:FOREIGNITALIC.
 * the above should be rewritten:
 * → Українська Народна Міліція
 * → Українська Народна Міліція