[Emacs-diffs] Changes to emacs/lisp/emacs-lisp/syntax.el

[Stefan Monnier]

Index: emacs/lisp/emacs-lisp/syntax.el
diff -c emacs/lisp/emacs-lisp/syntax.el:1.7 emacs/lisp/emacs-lisp/syntax.el:1.8
*** emacs/lisp/emacs-lisp/syntax.el:1.7 Tue Feb  4 07:53:34 2003
--- emacs/lisp/emacs-lisp/syntax.el     Wed Jul 16 11:17:02 2003
***************
*** 1,6 ****
  ;;; syntax.el --- helper functions to find syntactic context
  
! ;; Copyright (C) 2000 Free Software Foundation, Inc.
  
  ;; Maintainer: FSF
  ;; Keywords: internal
--- 1,6 ----
  ;;; syntax.el --- helper functions to find syntactic context
  
! ;; Copyright (C) 2000, 2003 Free Software Foundation, Inc.
  
  ;; Maintainer: FSF
  ;; Keywords: internal
***************
*** 25,31 ****
  ;;; Commentary:
  
  ;; The main exported function is `syntax-ppss'.  You might also need
! ;; to call `syntax-ppss-after-change-function' or to add it to
  ;; after-change-functions'(although this is automatically done by
  ;; syntax-ppss when needed, but that might fail if syntax-ppss is
  ;; called in a context where after-change-functions is temporarily
--- 25,31 ----
  ;;; Commentary:
  
  ;; The main exported function is `syntax-ppss'.  You might also need
! ;; to call `syntax-ppss-flush-cache' or to add it to
  ;; after-change-functions'(although this is automatically done by
  ;; syntax-ppss when needed, but that might fail if syntax-ppss is
  ;; called in a context where after-change-functions is temporarily
***************
*** 73,79 ****
    "Cache of (LAST-POS . LAST-PPSS).")
  (make-variable-buffer-local 'syntax-ppss-last)
  
! (defun syntax-ppss-after-change-function (beg &rest ignored)
    ;; Flush invalid cache entries.
    (while (and syntax-ppss-cache (> (caar syntax-ppss-cache) beg))
      (setq syntax-ppss-cache (cdr syntax-ppss-cache)))
--- 73,81 ----
    "Cache of (LAST-POS . LAST-PPSS).")
  (make-variable-buffer-local 'syntax-ppss-last)
  
! (defalias 'syntax-ppss-after-change-function 'syntax-ppss-flush-cache)
! (defun syntax-ppss-flush-cache (beg &rest ignored)
!   "Flush the cache of `syntax-ppss' starting at position BEG."
    ;; Flush invalid cache entries.
    (while (and syntax-ppss-cache (> (caar syntax-ppss-cache) beg))
      (setq syntax-ppss-cache (cdr syntax-ppss-cache)))
***************
*** 106,115 ****
    "Parse-Partial-Sexp State at POS.
  The returned value is the same as `parse-partial-sexp' except that
  the 2nd and 6th values of the returned state cannot be relied upon.
- 
- If the caller knows the PPSS of a nearby position, she can pass it
- in OLP-PPSS (with or without its corresponding OLD-POS) to try and
- avoid a more expansive scan.
  Point is at POS when this function returns."
    ;; Default values.
    (unless pos (setq pos (point)))
--- 108,113 ----
***************
*** 172,179 ****
  
          ;; Setup the after-change function if necessary.
          (unless (or syntax-ppss-cache syntax-ppss-last)
!           (add-hook 'after-change-functions
!                     'syntax-ppss-after-change-function nil t))
  
          ;; Use the best of OLD-POS and CACHE.
          (if (or (not old-pos) (< old-pos pt-min))
--- 170,176 ----
  
          ;; Setup the after-change function if necessary.
          (unless (or syntax-ppss-cache syntax-ppss-last)
!           (add-hook 'after-change-functions 'syntax-ppss-flush-cache nil t))
  
          ;; Use the best of OLD-POS and CACHE.
          (if (or (not old-pos) (< old-pos pt-min))