Variable: sgml-start-tag-regex
sgml-start-tag-regex is a variable defined in sgml-mode.el.gz.
Value
"<[_:[:alpha:]][-_.:[:alnum:]]*\\(?:[^_.:\"'/><[:alnum:]-]\\(?:[^\"'/><]\\|\"[^\"]*\"\\|'[^']*'\\)*\\)?"
Documentation
Regular expression that matches a non-empty start tag.
Any terminating > or / is not matched.
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/sgml-mode.el.gz
(defconst sgml-start-tag-regex (concat "<" sgml-name-re sgml-attrs-re)
"Regular expression that matches a non-empty start tag.
Any terminating `>' or `/' is not matched.")