misc/fuel/fuel-debug-uses.el

   1 ;;; fuel-debug-uses.el -- retrieving USING: stanzas
   2
   3 ;; Copyright (C) 2008, 2009 Jose Antonio Ortega Ruiz
   4 ;; See http://factorcode.org/license.txt for BSD license.
   5
   6 ;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
   7 ;; Keywords: languages, fuel, factor
   8 ;; Start date: Tue Dec 23, 2008 04:23
   9
  10 ;;; Comentary:
  11
  12 ;; Support for getting and updating factor source vocabulary lists.
  13
  14 ;;; Code:
  15
  16 (require 'fuel-debug)
  17 (require 'fuel-eval)
  18 (require 'fuel-popup)
  19 (require 'fuel-font-lock)
  20 (require 'fuel-base)
  21
  22
  23 \f
  24 ;;; Customization:
  25
  26 (fuel-font-lock--defface fuel-font-lock-debug-uses-header
  27   'bold fuel-debug "headers in Uses buffers")
  28
  29 (fuel-font-lock--defface fuel-font-lock-debug-uses-prompt
  30   'italic fuel-debug "prompts in Uses buffers")
  31
  32 \f
  33 ;;; Utility functions:
  34
  35 (defsubst fuel-debug--chomp (s)
  36   (replace-regexp-in-string "[\n\r\f]" "" s))
  37
  38 (defun fuel-debug--file-lines (file)
  39   (when (file-readable-p file)
  40     (with-current-buffer (find-file-noselect file)
  41       (save-excursion
  42         (goto-char (point-min))
  43         (let ((lines) (in-usings))
  44           (while (not (eobp))
  45             (when (looking-at "^USING: ") (setq in-usings t))
  46             (let ((line (fuel-debug--chomp
  47                          (substring-no-properties (thing-at-point 'line)))))
  48               (when in-usings (setq line (concat "! " line)))
  49               (push line lines))
  50             (when (and in-usings (looking-at "\\(^\\|.* \\);\\( \\|\n\\)"))
  51               (setq in-usings nil))
  52             (forward-line))
  53           (reverse lines))))))
  54
  55 (defun fuel-debug--uses-filter (restarts)
  56   (let ((result) (i 1) (rn 0))
  57     (dolist (r restarts (reverse result))
  58       (setq rn (1+ rn))
  59       (when (string-match "Use the .+ vocabulary\\|Defer" r)
  60         (push (list i rn r) result)
  61         (setq i (1+ i))))))
  62
  63 \f
  64 ;;; Retrieving USINGs:
  65
  66 (fuel-popup--define fuel-debug--uses-buffer
  67   "*fuel uses*" 'fuel-debug-uses-mode)
  68
  69 (make-variable-buffer-local
  70  (defvar fuel-debug--uses-file nil))
  71
  72 (make-variable-buffer-local
  73  (defvar fuel-debug--uses-restarts nil))
  74
  75 (defsubst fuel-debug--uses-insert-title ()
  76   (insert "Inferring USING: stanza for " fuel-debug--uses-file ".\n\n"))
  77
  78 (defun fuel-debug--uses-prepare (file)
  79   (fuel--with-popup (fuel-debug--uses-buffer)
  80     (setq fuel-debug--uses-file file
  81           fuel-debug--uses nil
  82           fuel-debug--uses-restarts nil)
  83     (erase-buffer)
  84     (fuel-debug--uses-insert-title)))
  85
  86 (defun fuel-debug--uses-clean ()
  87   (setq fuel-debug--uses-file nil
  88         fuel-debug--uses nil
  89         fuel-debug--uses-restarts nil))
  90
  91 (defun fuel-debug--uses-for-file (file)
  92   (let* ((lines (fuel-debug--file-lines file))
  93          (cmd `(:fuel ((V{ ,@lines } fuel-get-uses)) t t)))
  94     (fuel-debug--uses-prepare file)
  95     (fuel--with-popup (fuel-debug--uses-buffer)
  96       (insert "Asking Factor. Please, wait ...\n")
  97       (fuel-eval--send cmd 'fuel-debug--uses-cont))
  98     (fuel-popup--display (fuel-debug--uses-buffer))))
  99
 100 (defun fuel-debug--uses-cont (retort)
 101   (let ((uses (fuel-debug--uses retort))
 102         (err (fuel-eval--retort-error retort)))
 103     (if uses (fuel-debug--uses-display uses)
 104       (fuel-debug--uses-display-err retort))))
 105
 106 (defun fuel-debug--uses-display (uses)
 107   (let* ((inhibit-read-only t)
 108          (old (with-current-buffer (find-file-noselect fuel-debug--uses-file)
 109                 (sort (fuel-syntax--find-usings t) 'string<)))
 110          (new (sort uses 'string<)))
 111     (erase-buffer)
 112     (fuel-debug--uses-insert-title)
 113     (if (equalp old new)
 114         (progn
 115           (insert "Current USING: is already fine!. Type 'q' to bury buffer.\n")
 116           (fuel-debug--uses-clean))
 117       (fuel-debug--highlight-names old new 'fuel-font-lock-debug-unneeded-vocab)
 118       (fuel-debug--highlight-names new old 'fuel-font-lock-debug-missing-vocab)
 119       (fuel-debug--insert-vlist "Current vocabulary list:" old)
 120       (newline)
 121       (fuel-debug--insert-vlist "Correct vocabulary list:" new)
 122       (setq fuel-debug--uses new)
 123       (insert "\nType 'y' to update your USING: to the new one.\n"))))
 124
 125 (defun fuel-debug--uses-display-err (retort)
 126   (let* ((inhibit-read-only t)
 127          (err (fuel-eval--retort-error retort))
 128          (restarts (fuel-debug--uses-filter (fuel-eval--error-restarts err)))
 129          (unique (= 1 (length restarts))))
 130     (erase-buffer)
 131     (fuel-debug--uses-insert-title)
 132     (insert (fuel-eval--retort-output retort))
 133     (newline)
 134     (if (not restarts)
 135         (insert "\nSorry, couldn't infer the vocabulary list.\n")
 136       (setq fuel-debug--uses-restarts restarts)
 137       (if unique (fuel-debug--uses-restart 1)
 138         (insert "\nPlease, type the number of the desired vocabulary:\n\n")
 139         (dolist (r restarts)
 140           (insert (format " :%s %s\n" (first r) (third r))))))))
 141
 142 (defun fuel-debug--uses-update-usings ()
 143   (interactive)
 144   (let ((inhibit-read-only t)
 145         (file fuel-debug--uses-file)
 146         (uses fuel-debug--uses))
 147     (when (and uses file)
 148       (insert "\nDone!")
 149       (fuel-debug--uses-clean)
 150       (fuel-popup--quit)
 151       (fuel-debug--replace-usings file uses)
 152       (message "USING: updated!"))))
 153
 154 (defun fuel-debug--uses-restart (n)
 155   (when (and (> n 0) (<= n (length fuel-debug--uses-restarts)))
 156     (let* ((inhibit-read-only t)
 157            (restart (format ":%s" (cadr (nth (1- n) fuel-debug--uses-restarts))))
 158            (cmd `(:fuel ([ (:factor ,restart) ] fuel-with-autouse) t t)))
 159       (setq fuel-debug--uses-restarts nil)
 160       (insert "\nAsking Factor. Please, wait ...\n")
 161       (fuel-eval--send cmd 'fuel-debug--uses-cont))))
 162
 163 \f
 164 ;;; Fuel uses mode:
 165
 166 (defvar fuel-debug-uses-mode-map
 167   (let ((map (make-keymap)))
 168     (suppress-keymap map)
 169     (dotimes (n 9)
 170       (define-key map (vector (+ ?1 n))
 171         `(lambda () (interactive) (fuel-debug--uses-restart ,(1+ n)))))
 172     (define-key map "y" 'fuel-debug--uses-update-usings)
 173     (define-key map "\C-c\C-c" 'fuel-debug--uses-update-usings)
 174     map))
 175
 176 (defconst fuel-debug--uses-header-regex
 177   (format "^%s.*$" (regexp-opt '("Inferring USING: stanza for "
 178                                  "Current USING: is already fine!"
 179                                  "Current vocabulary list:"
 180                                  "Correct vocabulary list:"
 181                                  "Sorry, couldn't infer the vocabulary list."
 182                                  "Done!"))))
 183
 184 (defconst fuel-debug--uses-prompt-regex
 185   (format "^%s" (regexp-opt '("Asking Factor. Please, wait ..."
 186                               "Please, type the number of the desired vocabulary:"
 187                               "Type 'y' to update your USING: to the new one."))))
 188
 189 (defconst fuel-debug--uses-font-lock-keywords
 190   `((,fuel-debug--uses-header-regex . 'fuel-font-lock-debug-uses-header)
 191     (,fuel-debug--uses-prompt-regex . 'fuel-font-lock-debug-uses-prompt)
 192     (,fuel-debug--restart-regex (1 'fuel-font-lock-debug-restart-number)
 193                                 (2 'fuel-font-lock-debug-restart-name))))
 194
 195 (defun fuel-debug-uses-mode ()
 196   "A major mode for displaying Factor's USING: inference results."
 197   (interactive)
 198   (kill-all-local-variables)
 199   (buffer-disable-undo)
 200   (setq major-mode 'fuel-debug-uses-mode)
 201   (setq mode-name "Fuel Uses:")
 202   (set (make-local-variable 'font-lock-defaults)
 203        '(fuel-debug--uses-font-lock-keywords t nil nil nil))
 204   (use-local-map fuel-debug-uses-mode-map))
 205
 206 \f
 207 (provide 'fuel-debug-uses)
 208 ;;; fuel-debug-uses.el ends here