Merge branch 'filter'

- Bump version to 0.15

julia-vterm.el

@@ -7,7 +7,7 @@
 ;; Created: March 11, 2020
 ;; URL: https://github.com/shg/julia-vterm.el
 ;; Package-Requires: ((emacs "25.1") (vterm "0.0.1"))
-;; Version: 0.14
+;; Version: 0.15
 ;; Keywords: languages, julia
 
 ;; This file is not part of GNU Emacs.
@@ -108,7 +108,8 @@ recreated."
     (let ((buffer (generate-new-buffer (julia-vterm-repl-buffer-name session-name)))
 	  (vterm-shell julia-vterm-repl-program))
       (with-current-buffer buffer
-	(julia-vterm-repl-mode))
+	(julia-vterm-repl-mode)
+	(add-function :filter-args (process-filter vterm--process) #'julia-vterm-repl-run-filter-functions))
       buffer)))
 
 (defun julia-vterm-repl-buffer (&optional session-name restart)
@@ -145,6 +146,18 @@ If there's already one with the process alive, just open it."
     (goto-char (point-min))
     (vterm-clear 1)))
 
+(defvar-local julia-vterm-repl-filter-functions '()
+  "List of filter functions that process the output to the REPL buffer.")
+
+(defun julia-vterm-repl-run-filter-functions (args)
+  "Run registered filter functions with ARGS."
+  (let ((proc (car args))
+	(str (cadr args)))
+    (let ((funcs julia-vterm-repl-filter-functions))
+      (while funcs
+	(setq str (apply (pop funcs) (list str))))
+      (list proc str))))
+
 (defvar julia-vterm-repl-copy-mode-map
   (let ((map (make-sparse-keymap)))
     (define-key map (kbd "C-c C-t") #'julia-vterm-repl-copy-mode)