Function: markdown-validate-language-string
markdown-validate-language-string is a byte-compiled function defined
in markdown-mode.el.
Signature
(markdown-validate-language-string WIDGET)
Source Code
;; Defined in ~/.emacs.d/elpa/markdown-mode-20260321.143/markdown-mode.el
(defun markdown-validate-language-string (widget)
(let ((str (widget-value widget)))
(unless (string= str (markdown-clean-language-string str))
(widget-put widget :error (format "Invalid language spec: '%s'" str))
widget)))