octave-function-header-regexp
octave-function-header-regexp is a variable defined in `octave.el
'.
Its value is "^\\s-*\\_<\\(function\\)\\_>\\([^=;(\n]*=[ ]*\\|[ ]*\\)\\(\\(?:\\w\\|\\s_\\)+\\)\\_>"Documentation: Regexp to match an Octave function header. The string `function' and its name are given by the first and third parenthetical grouping.