Fix glitch in generating cxterm doc strings

* lisp/international/titdic-cnv.el (tit-process-header):
In generated doc strings, escape \, ", ', and ` properly.
Currently only ' appears but we might as well future-proof this.

1 files changed, 8 insertions, 1 deletions

diff --git a/lisp/international/titdic-cnv.el b/lisp/international/titdic-cnv.el
index 8615d953319..34bd1cfbd83 100644
--- a/lisp/international/titdic-cnv.el
+++ b/lisp/international/titdic-cnv.el
@@ -283,7 +283,14 @@ SPC, 6, 3, 4, or 7 specifying a tone (SPC:陰平, 6:陽平, 3:上聲, 4:去聲,
             (pos (point)))
         (cond ((= ch ?C)                ; COMMENT
                (cond ((looking-at "COMMENT")
-                      (let ((pos (match-end 0)))
+                      (let ((pos (match-end 0))
+                            (to (progn (end-of-line) (point))))
+                        (goto-char pos)
+                        (while (re-search-forward "[\\\"]" to t)
+                          (replace-match "\\\\\\&"))
+                        (goto-char pos)
+                        (while (re-search-forward "['`]" to t)
+                          (replace-match "\\\\\\\\=\\&"))
                         (end-of-line)
                         (setq tit-comments
                               (cons (buffer-substring-no-properties pos (point))