patch 8.0.0198: some syntax arguments take effect even after "if 0" commit https://github.com/vim/vim/commit/de318c5c35ed0d65fd2a07196cb8acd5ee6d9bf8 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 17 16:27:10 2017 +0100 patch 8.0.0198: some syntax arguments take effect even after "if 0" Problem: Some syntax arguments take effect even after "if 0". (Taylor Venable) Solution: Properly skip the syntax statements. Make "syn case" and "syn conceal" report the current state. Fix that "syn clear" didn't reset the conceal flag. Add tests for :syntax skipping properly.

Test for 'lisp'
If the lisp feature is not enabled, this will fail!

STARTTEST
:so small.vim
:set lisp
/^(defun
=G:/^(defun/,$w! test.out
:q!
ENDTEST

(defun html-file (base)
(format nil "~(~A~).html" base))

(defmacro page (name title &rest body)
(let ((ti (gensym)))
`(with-open-file (*standard-output*
(html-file ,name)
:direction :output
:if-exists :supersede)
(let ((,ti ,title))
(as title ,ti)
(with center 
(as h2 (string-upcase ,ti)))
(brs 3)
,@body))))

;;; Utilities for generating links

(defmacro with-link (dest &rest body)
`(progn
(format t "<a href=\"~A\">" (html-file ,dest))
,@body
(princ "</a>")))