Annotation of gforth/gforth.el, revision 1.1
1.1 ! anton 1: ;; This file is part of GNU Emacs.
! 2: ;; Changes by anton
! 3:
! 4: ;; GNU Emacs is distributed in the hope that it will be useful,
! 5: ;; but WITHOUT ANY WARRANTY. No author or distributor
! 6: ;; accepts responsibility to anyone for the consequences of using it
! 7: ;; or for whether it serves any particular purpose or works at all,
! 8: ;; unless he says so in writing. Refer to the GNU Emacs General Public
! 9: ;; License for full details.
! 10:
! 11: ;; Everyone is granted permission to copy, modify and redistribute
! 12: ;; GNU Emacs, but only under the conditions described in the
! 13: ;; GNU Emacs General Public License. A copy of this license is
! 14: ;; supposed to have been given to you along with GNU Emacs so you
! 15: ;; can know your rights and responsibilities. It should be in a
! 16: ;; file named COPYING. Among other things, the copyright notice
! 17: ;; and this notice must be preserved on all copies.
! 18:
! 19: ;;; $Header: forth.el,v 2.10 89/12/05 mip@ida.liu.se Exp $
! 20:
! 21: ;;-------------------------------------------------------------------
! 22: ;; A Forth indentation, documentation search and interaction library
! 23: ;;-------------------------------------------------------------------
! 24: ;;
! 25: ;; Written by Goran Rydqvist, gorry@ida.liu.se, Summer 1988
! 26: ;; Started: 16 July 88
! 27: ;; Version: 2.10
! 28: ;; Last update: 5 December 1989 by Mikael Patel, mip@ida.liu.se
! 29: ;; Last update: 25 June 1990 by Goran Rydqvist, gorry@ida.liu.se
! 30: ;;
! 31: ;; Documentation: See forth-mode (^HF forth-mode)
! 32: ;;-------------------------------------------------------------------
! 33:
! 34:
! 35: (defvar forth-positives
! 36: " : begin do ?do while if ?dup-if ?dup-not-if else case create does> exception> "
! 37: "Contains all words which will cause the indent-level to be incremented
! 38: on the next line.
! 39: OBS! All words in forth-positives must be surrounded by spaces.")
! 40:
! 41: (defvar forth-negatives
! 42: " ; until repeat while +loop loop else then endif again endcase does> "
! 43: "Contains all words which will cause the indent-level to be decremented
! 44: on the current line.
! 45: OBS! All words in forth-negatives must be surrounded by spaces.")
! 46:
! 47: (defvar forth-zeroes
! 48: " : "
! 49: "Contains all words which causes the indent to go to zero")
! 50:
! 51: (defvar forth-mode-abbrev-table nil
! 52: "Abbrev table in use in Forth-mode buffers.")
! 53:
! 54: (define-abbrev-table 'forth-mode-abbrev-table ())
! 55:
! 56: (defvar forth-mode-map nil
! 57: "Keymap used in Forth mode.")
! 58:
! 59: (if (not forth-mode-map)
! 60: (setq forth-mode-map (make-sparse-keymap)))
! 61:
! 62: (global-set-key "\e\C-m" 'forth-send-paragraph)
! 63: (global-set-key "\C-x\C-m" 'forth-split)
! 64: (global-set-key "\e " 'forth-reload)
! 65:
! 66: (define-key forth-mode-map "\e\C-m" 'forth-send-paragraph)
! 67: (define-key forth-mode-map "\eo" 'forth-send-buffer)
! 68: (define-key forth-mode-map "\C-x\C-m" 'forth-split)
! 69: (define-key forth-mode-map "\e " 'forth-reload)
! 70: (define-key forth-mode-map "\t" 'forth-indent-command)
! 71: (define-key forth-mode-map "\C-m" 'reindent-then-newline-and-indent)
! 72:
! 73: (defvar forth-mode-syntax-table nil
! 74: "Syntax table in use in Forth-mode buffers.")
! 75:
! 76: (if (not forth-mode-syntax-table)
! 77: (progn
! 78: (setq forth-mode-syntax-table (make-syntax-table))
! 79: (modify-syntax-entry ?\\ "\\" forth-mode-syntax-table)
! 80: (modify-syntax-entry ?/ ". 14" forth-mode-syntax-table)
! 81: (modify-syntax-entry ?* ". 23" forth-mode-syntax-table)
! 82: (modify-syntax-entry ?+ "." forth-mode-syntax-table)
! 83: (modify-syntax-entry ?- "." forth-mode-syntax-table)
! 84: (modify-syntax-entry ?= "." forth-mode-syntax-table)
! 85: (modify-syntax-entry ?% "." forth-mode-syntax-table)
! 86: (modify-syntax-entry ?< "." forth-mode-syntax-table)
! 87: (modify-syntax-entry ?> "." forth-mode-syntax-table)
! 88: (modify-syntax-entry ?& "." forth-mode-syntax-table)
! 89: (modify-syntax-entry ?| "." forth-mode-syntax-table)
! 90: (modify-syntax-entry ?\' "\"" forth-mode-syntax-table)
! 91: (modify-syntax-entry ?\t " " forth-mode-syntax-table)
! 92: (modify-syntax-entry ?) "> " forth-mode-syntax-table)
! 93: (modify-syntax-entry ?( "< " forth-mode-syntax-table)
! 94: (modify-syntax-entry ?\( "() " forth-mode-syntax-table)
! 95: (modify-syntax-entry ?\) ")( " forth-mode-syntax-table)))
! 96:
! 97: (defconst forth-indent-level 4
! 98: "Indentation of Forth statements.")
! 99:
! 100: (defun forth-mode-variables ()
! 101: (set-syntax-table forth-mode-syntax-table)
! 102: (setq local-abbrev-table forth-mode-abbrev-table)
! 103: (make-local-variable 'paragraph-start)
! 104: (setq paragraph-start (concat "^$\\|" page-delimiter))
! 105: (make-local-variable 'paragraph-separate)
! 106: (setq paragraph-separate paragraph-start)
! 107: (make-local-variable 'indent-line-function)
! 108: (setq indent-line-function 'forth-indent-line)
! 109: (make-local-variable 'require-final-newline)
! 110: (setq require-final-newline t)
! 111: (make-local-variable 'comment-start)
! 112: (setq comment-start "( ")
! 113: (make-local-variable 'comment-end)
! 114: (setq comment-end " )")
! 115: (make-local-variable 'comment-column)
! 116: (setq comment-column 40)
! 117: (make-local-variable 'comment-start-skip)
! 118: (setq comment-start-skip "( ")
! 119: (make-local-variable 'comment-indent-hook)
! 120: (setq comment-indent-hook 'forth-comment-indent)
! 121: (make-local-variable 'parse-sexp-ignore-comments)
! 122: (setq parse-sexp-ignore-comments t))
! 123:
! 124: (defun forth-mode ()
! 125: "
! 126: Major mode for editing Forth code. Tab indents for Forth code. Comments
! 127: are delimited with ( ). Paragraphs are separated by blank lines only.
! 128: Delete converts tabs to spaces as it moves back.
! 129: \\{forth-mode-map}
! 130: Forth-split
! 131: Positions the current buffer on top and a forth-interaction window
! 132: below. The window size is controlled by the forth-percent-height
! 133: variable (see below).
! 134: Forth-reload
! 135: Reloads the forth library and restarts the forth process.
! 136: Forth-send-buffer
! 137: Sends the current buffer, in text representation, as input to the
! 138: forth process.
! 139: Forth-send-paragraph
! 140: Sends the previous or the current paragraph to the forth-process.
! 141: Note that the cursor only need to be with in the paragraph to be sent.
! 142: forth-documentation
! 143: Search for documentation of forward adjacent to cursor. Note! To use
! 144: this mode you have to add a line, to your .emacs file, defining the
! 145: directories to search through for documentation files (se variable
! 146: forth-help-load-path below) e.g. (setq forth-help-load-path '(nil)).
! 147:
! 148: Variables controlling interaction and startup
! 149: forth-percent-height
! 150: Tells split how high to make the edit portion, in percent of the
! 151: current screen height.
! 152: forth-program-name
! 153: Tells the library which program name to execute in the interation
! 154: window.
! 155:
! 156: Variables controlling indentation style:
! 157: forth-positives
! 158: A string containing all words which causes the indent-level of the
! 159: following line to be incremented.
! 160: OBS! Each word must be surronded by spaces.
! 161: forth-negatives
! 162: A string containing all words which causes the indentation of the
! 163: current line to be decremented, if the word begin the line. These
! 164: words also has a cancelling effect on the indent-level of the
! 165: following line, independent of position.
! 166: OBS! Each word must be surronded by spaces.
! 167: forth-zeroes
! 168: A string containing all words which causes the indentation of the
! 169: current line to go to zero, if the word begin the line.
! 170: OBS! Each word must be surronded by spaces.
! 171: forth-indent-level
! 172: Indentation increment/decrement of Forth statements.
! 173:
! 174: Note! A word which decrements the indentation of the current line, may
! 175: also be mentioned in forth-positives to cause the indentation to
! 176: resume the previous level.
! 177:
! 178: Variables controling documentation search
! 179: forth-help-load-path
! 180: List of directories to search through to find *.doc
! 181: (forth-help-file-suffix) files. Nil means current default directory.
! 182: The specified directories must contain at least one .doc file. If it
! 183: does not and you still want the load-path to scan that directory, create
! 184: an empty file dummy.doc.
! 185: forth-help-file-suffix
! 186: The file names to search for in each directory specified by
! 187: forth-help-load-path. Defaulted to '*.doc'.
! 188: "
! 189: (interactive)
! 190: (kill-all-local-variables)
! 191: (use-local-map forth-mode-map)
! 192: (setq mode-name "Forth")
! 193: (setq major-mode 'forth-mode)
! 194: (forth-mode-variables)
! 195: ; (if (not (forth-process-running-p))
! 196: ; (run-forth forth-program-name))
! 197: (run-hooks 'forth-mode-hook))
! 198:
! 199: (defun forth-comment-indent ()
! 200: (save-excursion
! 201: (beginning-of-line)
! 202: (if (looking-at ":[ \t]*")
! 203: (progn
! 204: (end-of-line)
! 205: (skip-chars-backward " \t\n")
! 206: (1+ (current-column)))
! 207: comment-column)))
! 208:
! 209: (defun forth-current-indentation ()
! 210: (save-excursion
! 211: (beginning-of-line)
! 212: (back-to-indentation)
! 213: (current-column)))
! 214:
! 215: (defun forth-delete-indentation ()
! 216: (let ((b nil) (m nil))
! 217: (save-excursion
! 218: (beginning-of-line)
! 219: (setq b (point))
! 220: (back-to-indentation)
! 221: (setq m (point)))
! 222: (delete-region b m)))
! 223:
! 224: (defun forth-indent-line (&optional flag)
! 225: "Correct indentation of the current Forth line."
! 226: (let ((x (forth-calculate-indent)))
! 227: (forth-indent-to x)))
! 228:
! 229: (defun forth-indent-command ()
! 230: (interactive)
! 231: (forth-indent-line t))
! 232:
! 233: (defun forth-indent-to (x)
! 234: (let ((p nil))
! 235: (setq p (- (current-column) (forth-current-indentation)))
! 236: (forth-delete-indentation)
! 237: (beginning-of-line)
! 238: (indent-to x)
! 239: (if (> p 0) (forward-char p))))
! 240:
! 241: ;;Calculate indent
! 242: (defun forth-calculate-indent ()
! 243: (let ((w1 nil) (indent 0) (centre 0))
! 244: (save-excursion
! 245: (beginning-of-line)
! 246: (skip-chars-backward " \t\n")
! 247: (beginning-of-line)
! 248: (back-to-indentation)
! 249: (setq indent (current-column))
! 250: (setq centre indent)
! 251: (setq indent (+ indent (forth-sum-line-indentation))))
! 252: (save-excursion
! 253: (beginning-of-line)
! 254: (back-to-indentation)
! 255: (let ((p (point)))
! 256: (skip-chars-forward "^ \t\n")
! 257: (setq w1 (buffer-substring p (point)))))
! 258: (if (> (- indent centre) forth-indent-level)
! 259: (setq indent (+ centre forth-indent-level)))
! 260: (if (> (- centre indent) forth-indent-level)
! 261: (setq indent (- centre forth-indent-level)))
! 262: (if (< indent 0) (setq indent 0))
! 263: (setq indent (- indent
! 264: (if (string-match
! 265: (regexp-quote (concat " " w1 " "))
! 266: forth-negatives)
! 267: forth-indent-level 0)))
! 268: (if (string-match (regexp-quote (concat " " w1 " ")) forth-zeroes)
! 269: (setq indent 0))
! 270: indent))
! 271:
! 272: (defun forth-sum-line-indentation ()
! 273: "Add upp the positive and negative weights of all words on the current line."
! 274: (let ((b (point)) (e nil) (sum 0) (w nil) (t1 nil) (t2 nil) (first t))
! 275: (end-of-line) (setq e (point))
! 276: (goto-char b)
! 277: (while (< (point) e)
! 278: (setq w (forth-next-word))
! 279: (setq t1 (string-match (regexp-quote (concat " " w " "))
! 280: forth-positives))
! 281: (setq t2 (string-match (regexp-quote (concat " " w " "))
! 282: forth-negatives))
! 283: (if (and t1 t2)
! 284: (setq sum (+ sum forth-indent-level)))
! 285: (if t1
! 286: (setq sum (+ sum forth-indent-level)))
! 287: (if (and t2 (not first))
! 288: (setq sum (- sum forth-indent-level)))
! 289: (skip-chars-forward " \t")
! 290: (setq first nil))
! 291: sum))
! 292:
! 293:
! 294: (defun forth-next-word ()
! 295: "Return the next forth-word. Skip anything enclosed in double quotes or ()."
! 296: (let ((w1 nil))
! 297: (while (not w1)
! 298: (skip-chars-forward " \t\n")
! 299: (let ((p (point)))
! 300: (skip-chars-forward "^ \t\n")
! 301: (setq w1 (buffer-substring p (point))))
! 302: (cond ((string-match "\"" w1)
! 303: (progn
! 304: (skip-chars-forward "^\"")
! 305: (setq w1 nil)))
! 306: ((string-match "\(" w1)
! 307: (progn
! 308: (skip-chars-forward "^\)")
! 309: (setq w1 nil)))
! 310: (t nil)))
! 311: w1))
! 312:
! 313:
! 314: ;; Forth commands
! 315:
! 316: (defvar forth-program-name "forth"
! 317: "*Program invoked by the `run-forth' command.")
! 318:
! 319: (defvar forth-band-name nil
! 320: "*Band loaded by the `run-forth' command.")
! 321:
! 322: (defvar forth-program-arguments nil
! 323: "*Arguments passed to the Forth program by the `run-forth' command.")
! 324:
! 325: (defun run-forth (command-line)
! 326: "Run an inferior Forth process. Output goes to the buffer `*forth*'.
! 327: With argument, asks for a command line. Split up screen and run forth
! 328: in the lower portion. The current-buffer when called will stay in the
! 329: upper portion of the screen, and all other windows are deleted.
! 330: Call run-forth again to make the *forth* buffer appear in the lower
! 331: part of the screen."
! 332: (interactive
! 333: (list (let ((default
! 334: (or forth-process-command-line
! 335: (forth-default-command-line))))
! 336: (if current-prefix-arg
! 337: (read-string "Run Forth: " default)
! 338: default))))
! 339: (setq forth-process-command-line command-line)
! 340: (forth-start-process command-line)
! 341: (forth-split)
! 342: (forth-set-runlight forth-runlight:input))
! 343:
! 344: (defun reset-forth ()
! 345: "Reset the Forth process."
! 346: (interactive)
! 347: (let ((process (get-process forth-program-name)))
! 348: (cond ((or (not process)
! 349: (not (eq (process-status process) 'run))
! 350: (yes-or-no-p
! 351: "The Forth process is running, are you SURE you want to reset it? "))
! 352: (message "Resetting Forth process...")
! 353: (forth-reload)
! 354: (message "Resetting Forth process...done")))))
! 355:
! 356: (defun forth-default-command-line ()
! 357: (concat forth-program-name " -emacs"
! 358: (if forth-program-arguments
! 359: (concat " " forth-program-arguments)
! 360: "")
! 361: (if forth-band-name
! 362: (concat " -band " forth-band-name)
! 363: "")))
! 364:
! 365: ;;;; Internal Variables
! 366:
! 367: (defvar forth-process-command-line nil
! 368: "Command used to start the most recent Forth process.")
! 369:
! 370: (defvar forth-previous-send ""
! 371: "Most recent expression transmitted to the Forth process.")
! 372:
! 373: (defvar forth-process-filter-queue '()
! 374: "Queue used to synchronize filter actions properly.")
! 375:
! 376: (defvar forth-prompt "ok"
! 377: "The current forth prompt string.")
! 378:
! 379: (defvar forth-start-hook nil
! 380: "If non-nil, a procedure to call when the Forth process is started.
! 381: When called, the current buffer will be the Forth process-buffer.")
! 382:
! 383: (defvar forth-signal-death-message nil
! 384: "If non-nil, causes a message to be generated when the Forth process dies.")
! 385:
! 386: (defvar forth-percent-height 62
! 387: "Tells run-forth how high the upper window should be in percent.")
! 388:
! 389: (defconst forth-runlight:input ?I
! 390: "The character displayed when the Forth process is waiting for input.")
! 391:
! 392: (defvar forth-mode-string ""
! 393: "String displayed in the mode line when the Forth process is running.")
! 394:
! 395: ;;;; Evaluation Commands
! 396:
! 397: (defun forth-send-string (&rest strings)
! 398: "Send the string arguments to the Forth process.
! 399: The strings are concatenated and terminated by a newline."
! 400: (cond ((forth-process-running-p)
! 401: (forth-send-string-1 strings))
! 402: ((yes-or-no-p "The Forth process has died. Reset it? ")
! 403: (reset-forth)
! 404: (goto-char (point-max))
! 405: (forth-send-string-1 strings))))
! 406:
! 407: (defun forth-send-string-1 (strings)
! 408: (let ((string (apply 'concat strings)))
! 409: (forth-send-string-2 string)))
! 410:
! 411: (defun forth-send-string-2 (string)
! 412: (let ((process (get-process forth-program-name)))
! 413: (if (not (eq (current-buffer) (get-buffer forth-program-name)))
! 414: (progn
! 415: (forth-process-filter-output string)
! 416: (forth-process-filter:finish)))
! 417: (send-string process (concat string "\n"))
! 418: (if (eq (current-buffer) (process-buffer process))
! 419: (set-marker (process-mark process) (point)))))
! 420:
! 421:
! 422: (defun forth-send-region (start end)
! 423: "Send the current region to the Forth process.
! 424: The region is sent terminated by a newline."
! 425: (interactive "r")
! 426: (let ((process (get-process forth-program-name)))
! 427: (if (and process (eq (current-buffer) (process-buffer process)))
! 428: (progn (goto-char end)
! 429: (set-marker (process-mark process) end))))
! 430: (forth-send-string "\n" (buffer-substring start end) "\n"))
! 431:
! 432: (defun forth-end-of-paragraph ()
! 433: (if (looking-at "[\t\n ]+") (skip-chars-backward "\t\n "))
! 434: (if (not (re-search-forward "\n[ \t]*\n" nil t))
! 435: (goto-char (point-max))))
! 436:
! 437: (defun forth-send-paragraph ()
! 438: "Send the current or the previous paragraph to the Forth process"
! 439: (interactive)
! 440: (let (end)
! 441: (save-excursion
! 442: (forth-end-of-paragraph)
! 443: (skip-chars-backward "\t\n ")
! 444: (setq end (point))
! 445: (if (re-search-backward "\n[ \t]*\n" nil t)
! 446: (setq start (point))
! 447: (goto-char (point-min)))
! 448: (skip-chars-forward "\t\n ")
! 449: (forth-send-region (point) end))))
! 450:
! 451: (defun forth-send-buffer ()
! 452: "Send the current buffer to the Forth process."
! 453: (interactive)
! 454: (if (eq (current-buffer) (forth-process-buffer))
! 455: (error "Not allowed to send this buffer's contents to Forth"))
! 456: (forth-send-region (point-min) (point-max)))
! 457:
! 458:
! 459: ;;;; Basic Process Control
! 460:
! 461: (defun forth-start-process (command-line)
! 462: (let ((buffer (get-buffer-create "*forth*")))
! 463: (let ((process (get-buffer-process buffer)))
! 464: (save-excursion
! 465: (set-buffer buffer)
! 466: (progn (if process (delete-process process))
! 467: (goto-char (point-max))
! 468: (setq mode-line-process '(": %s"))
! 469: (add-to-global-mode-string 'forth-mode-string)
! 470: (setq process
! 471: (apply 'start-process
! 472: (cons forth-program-name
! 473: (cons buffer
! 474: (forth-parse-command-line
! 475: command-line)))))
! 476: (set-marker (process-mark process) (point-max))
! 477: (forth-process-filter-initialize t)
! 478: (forth-modeline-initialize)
! 479: (set-process-sentinel process 'forth-process-sentinel)
! 480: (set-process-filter process 'forth-process-filter)
! 481: (run-hooks 'forth-start-hook)))
! 482: buffer)))
! 483:
! 484: (defun forth-parse-command-line (string)
! 485: (setq string (substitute-in-file-name string))
! 486: (let ((start 0)
! 487: (result '()))
! 488: (while start
! 489: (let ((index (string-match "[ \t]" string start)))
! 490: (setq start
! 491: (cond ((not index)
! 492: (setq result
! 493: (cons (substring string start)
! 494: result))
! 495: nil)
! 496: ((= index start)
! 497: (string-match "[^ \t]" string start))
! 498: (t
! 499: (setq result
! 500: (cons (substring string start index)
! 501: result))
! 502: (1+ index))))))
! 503: (nreverse result)))
! 504:
! 505:
! 506: (defun forth-process-running-p ()
! 507: "True iff there is a Forth process whose status is `run'."
! 508: (let ((process (get-process forth-program-name)))
! 509: (and process
! 510: (eq (process-status process) 'run))))
! 511:
! 512: (defun forth-process-buffer ()
! 513: (let ((process (get-process forth-program-name)))
! 514: (and process (process-buffer process))))
! 515:
! 516: ;;;; Process Filter
! 517:
! 518: (defun forth-process-sentinel (proc reason)
! 519: (let ((inhibit-quit nil))
! 520: (forth-process-filter-initialize (eq reason 'run))
! 521: (if (eq reason 'run)
! 522: (forth-modeline-initialize)
! 523: (setq forth-mode-string "")))
! 524: (if (and (not (memq reason '(run stop)))
! 525: forth-signal-death-message)
! 526: (progn (beep)
! 527: (message
! 528: "The Forth process has died! Do M-x reset-forth to restart it"))))
! 529:
! 530: (defun forth-process-filter-initialize (running-p)
! 531: (setq forth-process-filter-queue (cons '() '()))
! 532: (setq forth-prompt "ok"))
! 533:
! 534:
! 535: (defun forth-process-filter (proc string)
! 536: (forth-process-filter-output string)
! 537: (forth-process-filter:finish))
! 538:
! 539: (defun forth-process-filter:enqueue (action)
! 540: (let ((next (cons action '())))
! 541: (if (cdr forth-process-filter-queue)
! 542: (setcdr (cdr forth-process-filter-queue) next)
! 543: (setcar forth-process-filter-queue next))
! 544: (setcdr forth-process-filter-queue next)))
! 545:
! 546: (defun forth-process-filter:finish ()
! 547: (while (car forth-process-filter-queue)
! 548: (let ((next (car forth-process-filter-queue)))
! 549: (setcar forth-process-filter-queue (cdr next))
! 550: (if (not (cdr next))
! 551: (setcdr forth-process-filter-queue '()))
! 552: (apply (car (car next)) (cdr (car next))))))
! 553:
! 554: ;;;; Process Filter Output
! 555:
! 556: (defun forth-process-filter-output (&rest args)
! 557: (if (not (and args
! 558: (null (cdr args))
! 559: (stringp (car args))
! 560: (string-equal "" (car args))))
! 561: (forth-process-filter:enqueue
! 562: (cons 'forth-process-filter-output-1 args))))
! 563:
! 564: (defun forth-process-filter-output-1 (&rest args)
! 565: (save-excursion
! 566: (forth-goto-output-point)
! 567: (apply 'insert-before-markers args)))
! 568:
! 569: (defun forth-guarantee-newlines (n)
! 570: (save-excursion
! 571: (forth-goto-output-point)
! 572: (let ((stop nil))
! 573: (while (and (not stop)
! 574: (bolp))
! 575: (setq n (1- n))
! 576: (if (bobp)
! 577: (setq stop t)
! 578: (backward-char))))
! 579: (forth-goto-output-point)
! 580: (while (> n 0)
! 581: (insert-before-markers ?\n)
! 582: (setq n (1- n)))))
! 583:
! 584: (defun forth-goto-output-point ()
! 585: (let ((process (get-process forth-program-name)))
! 586: (set-buffer (process-buffer process))
! 587: (goto-char (process-mark process))))
! 588:
! 589: (defun forth-modeline-initialize ()
! 590: (setq forth-mode-string " "))
! 591:
! 592: (defun forth-set-runlight (runlight)
! 593: (aset forth-mode-string 0 runlight)
! 594: (forth-modeline-redisplay))
! 595:
! 596: (defun forth-modeline-redisplay ()
! 597: (save-excursion (set-buffer (other-buffer)))
! 598: (set-buffer-modified-p (buffer-modified-p))
! 599: (sit-for 0))
! 600:
! 601: ;;;; Process Filter Operations
! 602:
! 603: (defun add-to-global-mode-string (x)
! 604: (cond ((null global-mode-string)
! 605: (setq global-mode-string (list "" x " ")))
! 606: ((not (memq x global-mode-string))
! 607: (setq global-mode-string
! 608: (cons ""
! 609: (cons x
! 610: (cons " "
! 611: (if (equal "" (car global-mode-string))
! 612: (cdr global-mode-string)
! 613: global-mode-string))))))))
! 614:
! 615:
! 616: ;; Misc
! 617:
! 618: (setq auto-mode-alist (append auto-mode-alist
! 619: '(("\\.f83$" . forth-mode))))
! 620:
! 621: (defun forth-split ()
! 622: (interactive)
! 623: (forth-split-1 "*forth*"))
! 624:
! 625: (defun forth-split-1 (buffer)
! 626: (if (not (eq (window-buffer) (get-buffer buffer)))
! 627: (progn
! 628: (delete-other-windows)
! 629: (split-window-vertically
! 630: (/ (* (screen-height) forth-percent-height) 100))
! 631: (other-window 1)
! 632: (switch-to-buffer buffer)
! 633: (goto-char (point-max))
! 634: (other-window 1))))
! 635:
! 636: (defun forth-reload ()
! 637: (interactive)
! 638: (let ((process (get-process forth-program-name)))
! 639: (if process (kill-process process t)))
! 640: (sleep-for-millisecs 100)
! 641: (forth-mode))
! 642:
! 643:
! 644: ;; Special section for forth-help
! 645:
! 646: (defvar forth-help-buffer "*Forth-help*"
! 647: "Buffer used to display the requested documentation.")
! 648:
! 649: (defvar forth-help-load-path nil
! 650: "List of directories to search through to find *.doc
! 651: (forth-help-file-suffix) files. Nil means current default directory.
! 652: The specified directories must contain at least one .doc file. If it
! 653: does not and you still want the load-path to scan that directory, create
! 654: an empty file dummy.doc.")
! 655:
! 656: (defvar forth-help-file-suffix "*.doc"
! 657: "The file names to search for in each directory.")
! 658:
! 659: (setq forth-search-command-prefix "grep -n \"^ [^(]* ")
! 660: (defvar forth-search-command-suffix "/dev/null")
! 661: (defvar forth-grep-error-regexp ": No such file or directory")
! 662:
! 663: (defun forth-function-called-at-point ()
! 664: "Return the space delimited word a point."
! 665: (save-excursion
! 666: (save-restriction
! 667: (narrow-to-region (max (point-min) (- (point) 1000)) (point-max))
! 668: (skip-chars-backward "^ \t\n" (point-min))
! 669: (if (looking-at "[ \t\n]")
! 670: (forward-char 1))
! 671: (let (obj (p (point)))
! 672: (skip-chars-forward "^ \t\n")
! 673: (buffer-substring p (point))))))
! 674:
! 675: (defun forth-help-names-extend-comp (path-list result)
! 676: (cond ((null path-list) result)
! 677: ((null (car path-list))
! 678: (forth-help-names-extend-comp (cdr path-list)
! 679: (concat result forth-help-file-suffix " ")))
! 680: (t (forth-help-names-extend-comp
! 681: (cdr path-list) (concat result
! 682: (expand-file-name (car path-list)) "/"
! 683: forth-help-file-suffix " ")))))
! 684:
! 685: (defun forth-help-names-extended ()
! 686: (if forth-help-load-path
! 687: (forth-help-names-extend-comp forth-help-load-path "")
! 688: (error "forth-help-load-path not specified")))
! 689:
! 690:
! 691: (define-key forth-mode-map "\C-hf" 'forth-documentation)
! 692:
! 693: (defun forth-documentation (function)
! 694: "Display the full documentation of FORTH word."
! 695: (interactive
! 696: (let ((fn (forth-function-called-at-point))
! 697: (enable-recursive-minibuffers t)
! 698: search-list
! 699: val)
! 700: (setq val (read-string (format "Describe forth word (default %s): " fn)))
! 701: (list (if (equal val "") fn val))))
! 702: (forth-get-doc (concat forth-search-command-prefix
! 703: (grep-regexp-quote (concat function " ("))
! 704: "[^)]*\-\-\" " (forth-help-names-extended)
! 705: forth-search-command-suffix))
! 706: (message "C-x C-m switches back to the forth interaction window"))
! 707:
! 708: (defun forth-get-doc (command)
! 709: "Display the full documentation of command."
! 710: (let ((curwin (get-buffer-window (window-buffer)))
! 711: reswin
! 712: pointmax)
! 713: (with-output-to-temp-buffer forth-help-buffer
! 714: (progn
! 715: (call-process "sh" nil forth-help-buffer t "-c" command)
! 716: (setq reswin (get-buffer-window forth-help-buffer))))
! 717: (setq reswin (get-buffer-window forth-help-buffer))
! 718: (select-window reswin)
! 719: (save-excursion
! 720: (goto-char (setq pointmax (point-max)))
! 721: (insert "--------------------\n\n"))
! 722: (let (fd doc)
! 723: (while (setq fd (forth-get-file-data pointmax))
! 724: (setq doc (forth-get-doc-string fd))
! 725: (save-excursion
! 726: (goto-char (point-max))
! 727: (insert (substring (car fd) (string-match "[^/]*$" (car fd)))
! 728: ":\n\n" doc "\n")))
! 729: (if (not doc)
! 730: (progn (goto-char (point-max)) (insert "Not found"))))
! 731: (select-window curwin)))
! 732:
! 733: (defun forth-skip-error-lines ()
! 734: (let ((lines 0))
! 735: (save-excursion
! 736: (while (re-search-forward forth-grep-error-regexp nil t)
! 737: (beginning-of-line)
! 738: (forward-line 1)
! 739: (setq lines (1+ lines))))
! 740: (forward-line lines)))
! 741:
! 742: (defun forth-get-doc-string (fd)
! 743: "Find file (car fd) and extract documentation from line (nth 1 fd)."
! 744: (let (result)
! 745: (save-window-excursion
! 746: (find-file (car fd))
! 747: (goto-line (nth 1 fd))
! 748: (if (not (eq (nth 1 fd) (1+ (count-lines (point-min) (point)))))
! 749: (error "forth-get-doc-string: serious error"))
! 750: (if (not (re-search-backward "\n[\t ]*\n" nil t))
! 751: (goto-char (point-min))
! 752: (goto-char (match-end 0)))
! 753: (let ((p (point)))
! 754: (if (not (re-search-forward "\n[\t ]*\n" nil t))
! 755: (goto-char (point-max)))
! 756: (setq result (buffer-substring p (point))))
! 757: (bury-buffer (current-buffer)))
! 758: result))
! 759:
! 760: (defun forth-get-file-data (limit)
! 761: "Parse grep output and return '(filename line#) list. Return nil when
! 762: passing limit."
! 763: (forth-skip-error-lines)
! 764: (if (< (point) limit)
! 765: (let ((result (forth-get-file-data-cont limit)))
! 766: (forward-line 1)
! 767: (beginning-of-line)
! 768: result)))
! 769:
! 770: (defun forth-get-file-data-cont (limit)
! 771: (let (result)
! 772: (let ((p (point)))
! 773: (skip-chars-forward "^:")
! 774: (setq result (buffer-substring p (point))))
! 775: (if (< (point) limit)
! 776: (let ((p (1+ (point))))
! 777: (forward-char 1)
! 778: (skip-chars-forward "^:")
! 779: (list result (string-to-int (buffer-substring p (point))))))))
! 780:
! 781: (defun grep-regexp-quote (str)
! 782: (let ((i 0) (m 1) (res ""))
! 783: (while (/= m 0)
! 784: (setq m (string-to-char (substring str i)))
! 785: (if (/= m 0)
! 786: (progn
! 787: (setq i (1+ i))
! 788: (if (string-match (regexp-quote (char-to-string m))
! 789: ".*\\^$[]")
! 790: (setq res (concat res "\\")))
! 791: (setq res (concat res (char-to-string m))))))
! 792: res))
! 793:
! 794:
! 795: (define-key forth-mode-map "\C-x\C-e" 'forth-compile)
! 796: (define-key forth-mode-map "\C-x\C-n" 'next-error)
! 797: (require 'compile "compile")
! 798:
! 799: (defvar forth-compile-command "forth ")
! 800: (defvar forth-compilation-window-percent-height 30)
! 801:
! 802: (defun forth-compile (command)
! 803: (interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command))))
! 804: (forth-split-1 "*compilation*")
! 805: (setq ctools-compile-command command)
! 806: (compile1 ctools-compile-command "No more errors"))
! 807:
! 808:
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