[AUCTeX-devel] \\_> in tex-fold

[Masayuki Ataka]

Hi,

In tex-fold.el, TeX-fold-region uses \\_> to match `the empty
string, but only at the end of a symbol'.

(defun TeX-fold-region (start end &optional type)
 ... (snip)
                             (t
                              ;; "\\_>" is only available with Emacs
                              ;; 21.4 or later (checked into CVS Emacs
                              ;; on 2004-05-19). (This could be used in
                              ;; font-latex as well for
                              ;; `font-latex-match-variable-make' and
                              ;; friends instead of "\\>" and would fix
                              ;; issues with starred macros.)
                              (concat (regexp-quote TeX-esc)
                                      (regexp-opt item-list t)
                                      (if (string-match "\\_>" "X")
                                          "\\_>"
                                        "address@hidden")))))

(1)
This comment is not correct, anymore.  "\\_>" is only available
with Emacs 22, and font-latex does not have
`font-latex-match-variable-make'.

(2)
(string-match "\\_>" "")
=> 1

This means
  $1\leq2$, $1\neq2$, $1\to2$
are not folded when we set TeX-fold-macro-spec-list for \leq,
\neq, and \to, respectively.


But I don't have good solution to fix issues with starred
macros without "\\_>" Xp

Any good idea?
---
email: address@hidden
Name:: Masayuki Ataka // (Japan)