diff options
Diffstat (limited to 'lisp')
| -rw-r--r-- | lisp/progmodes/vhdl-mode.el | 76 |
1 files changed, 41 insertions, 35 deletions
diff --git a/lisp/progmodes/vhdl-mode.el b/lisp/progmodes/vhdl-mode.el index f52baf049aa..144bfa944d3 100644 --- a/lisp/progmodes/vhdl-mode.el +++ b/lisp/progmodes/vhdl-mode.el @@ -8398,6 +8398,44 @@ buffer." (message "Updating sensitivity lists...done"))) (when noninteractive (save-buffer))) +(defun vhdl--re2-region (beg-re end-re) + "Return a function searching for a region delimited by a pair of regexps. +BEG-RE and END-RE are the regexps delimiting the region to search for." + (lambda (proc-end) + (when (vhdl-re-search-forward beg-re proc-end t) + (save-excursion + (vhdl-re-search-forward end-re proc-end t))))) + +(defconst vhdl--signal-regions-functions + (list + ;; right-hand side of signal/variable assignment + ;; (special case: "<=" is relational operator in a condition) + (vhdl--re2-region "[<:]=" + ";\\|\\<\\(then\\|loop\\|report\\|severity\\|is\\)\\>") + ;; if condition + (vhdl--re2-region "^\\s-*if\\>" "\\<then\\>") + ;; elsif condition + (vhdl--re2-region "\\<elsif\\>" "\\<then\\>") + ;; while loop condition + (vhdl--re2-region "^\\s-*while\\>" "\\<loop\\>") + ;; exit/next condition + (vhdl--re2-region "\\<\\(exit\\|next\\)\\s-+\\w+\\s-+when\\>" ";") + ;; assert condition + (vhdl--re2-region "\\<assert\\>" "\\(\\<report\\>\\|\\<severity\\>\\|;\\)") + ;; case expression + (vhdl--re2-region "^\\s-*case\\>" "\\<is\\>") + ;; parameter list of procedure call, array index + (lambda (proc-end) + (when (re-search-forward "^\\s-*\\(\\w\\|\\.\\)+[ \t\n\r\f]*(" proc-end t) + (forward-char -1) + (save-excursion + (forward-sexp) + (while (looking-at "(") (forward-sexp)) (point))))) + "Define syntactic regions where signals are read. +Each function is called with one arg (a limit for the (forward) search) and +should return either nil or the end position of the region (in which case +point will be set to its beginning).") + (defun vhdl-update-sensitivity-list () "Update sensitivity list." (let ((proc-beg (point)) @@ -8418,35 +8456,6 @@ buffer." (let ;; scan for visible signals ((visible-list (vhdl-get-visible-signals)) - ;; define syntactic regions where signals are read - (scan-regions-list - `(;; right-hand side of signal/variable assignment - ;; (special case: "<=" is relational operator in a condition) - ((vhdl-re-search-forward "[<:]=" ,proc-end t) - (vhdl-re-search-forward ";\\|\\<\\(then\\|loop\\|report\\|severity\\|is\\)\\>" ,proc-end t)) - ;; if condition - ((vhdl-re-search-forward "^\\s-*if\\>" ,proc-end t) - (vhdl-re-search-forward "\\<then\\>" ,proc-end t)) - ;; elsif condition - ((vhdl-re-search-forward "\\<elsif\\>" ,proc-end t) - (vhdl-re-search-forward "\\<then\\>" ,proc-end t)) - ;; while loop condition - ((vhdl-re-search-forward "^\\s-*while\\>" ,proc-end t) - (vhdl-re-search-forward "\\<loop\\>" ,proc-end t)) - ;; exit/next condition - ((vhdl-re-search-forward "\\<\\(exit\\|next\\)\\s-+\\w+\\s-+when\\>" ,proc-end t) - (vhdl-re-search-forward ";" ,proc-end t)) - ;; assert condition - ((vhdl-re-search-forward "\\<assert\\>" ,proc-end t) - (vhdl-re-search-forward "\\(\\<report\\>\\|\\<severity\\>\\|;\\)" ,proc-end t)) - ;; case expression - ((vhdl-re-search-forward "^\\s-*case\\>" ,proc-end t) - (vhdl-re-search-forward "\\<is\\>" ,proc-end t)) - ;; parameter list of procedure call, array index - ((and (re-search-forward "^\\s-*\\(\\w\\|\\.\\)+[ \t\n\r\f]*(" ,proc-end t) - (1- (point))) - (progn (backward-char) (forward-sexp) - (while (looking-at "(") (forward-sexp)) (point))))) name field read-list sens-list signal-list tmp-list sens-beg sens-end beg end margin) ;; scan for signals in old sensitivity list @@ -8475,11 +8484,9 @@ buffer." (push (cons end (point)) seq-region-list) (beginning-of-line))) ;; scan for signals read in process - (while scan-regions-list + (dolist (scan-fun vhdl--signal-regions-functions) (goto-char proc-mid) - (while (and (setq beg (eval (nth 0 (car scan-regions-list)))) - (setq end (eval (nth 1 (car scan-regions-list))))) - (goto-char beg) + (while (setq end (funcall scan-fun proc-end)) (unless (or (vhdl-in-literal) (and seq-region-list (let ((tmp-list seq-region-list)) @@ -8518,8 +8525,7 @@ buffer." (car tmp-list)) (setq read-list (delete (car tmp-list) read-list))) (setq tmp-list (cdr tmp-list))))) - (goto-char (match-end 1))))) - (setq scan-regions-list (cdr scan-regions-list))) + (goto-char (match-end 1)))))) ;; update sensitivity list (goto-char sens-beg) (if sens-end |