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1.1 ! root 1: ;; Terminal emulator for GNU Emacs. ! 2: ;; Copyright (C) 1986, 1987 Free Software Foundation, Inc. ! 3: ;; Written by Richard Mlynarik, November 1986. ! 4: ! 5: ;; This file is part of GNU Emacs. ! 6: ! 7: ;; GNU Emacs is distributed in the hope that it will be useful, ! 8: ;; but WITHOUT ANY WARRANTY. No author or distributor ! 9: ;; accepts responsibility to anyone for the consequences of using it ! 10: ;; or for whether it serves any particular purpose or works at all, ! 11: ;; unless he says so in writing. Refer to the GNU Emacs General Public ! 12: ;; License for full details. ! 13: ! 14: ;; Everyone is granted permission to copy, modify and redistribute ! 15: ;; GNU Emacs, but only under the conditions described in the ! 16: ;; GNU Emacs General Public License. A copy of this license is ! 17: ;; supposed to have been given to you along with GNU Emacs so you ! 18: ;; can know your rights and responsibilities. It should be in a ! 19: ;; file named COPYING. Among other things, the copyright notice ! 20: ;; and this notice must be preserved on all copies. ! 21: ! 22: ;;>>TODO ! 23: ;;>> terminfo? ! 24: ;;>> ** Nothing can be done about emacs' meta-lossage ** ! 25: ;;>> (without redoing keymaps `sanely' -- ask Mly for details) ! 26: ! 27: ;;>> One probably wants to do setenv MORE -c when running with ! 28: ;;>> more-processing enabled. ! 29: ! 30: (provide 'terminal) ! 31: (require 'ehelp) ! 32: ! 33: (defvar terminal-escape-char ?\C-^ ! 34: "*All characters except for this are passed verbatim through the ! 35: terminal-emulator. This character acts as a prefix for commands ! 36: to the emulator program itself. Type this character twice to send ! 37: it through the emulator. Type ? after typing it for a list of ! 38: possible commands. ! 39: This variable is local to each terminal-emulator buffer.") ! 40: ! 41: (defvar terminal-scrolling t ! 42: "*If non-nil, the terminal-emulator will `scroll' when output occurs ! 43: past the bottom of the screen. If nil, output will `wrap' to the top ! 44: of the screen. ! 45: This variable is local to each terminal-emulator buffer.") ! 46: ! 47: (defvar terminal-more-processing t ! 48: "*If non-nil, do more-processing. ! 49: This variable is local to each terminal-emulator buffer.") ! 50: ! 51: ;; If you are the sort of loser who uses scrolling without more breaks ! 52: ;; and expects to actually see anything, you should probably set this to ! 53: ;; around 400 ! 54: (defvar terminal-redisplay-interval 5000 ! 55: "*Maximum number of characters which will be processed by the ! 56: terminal-emulator before a screen redisplay is forced. ! 57: Set this to a large value for greater throughput, ! 58: set it smaller for more frequent updates but overall slower ! 59: performance.") ! 60: ! 61: (defvar terminal-more-break-insertion ! 62: "*** More break -- Press space to continue ***") ! 63: ! 64: (defvar terminal-escape-map nil) ! 65: (defvar terminal-map nil) ! 66: (defvar terminal-more-break-map nil) ! 67: (if terminal-map ! 68: nil ! 69: (let ((map (make-keymap))) ! 70: (fillarray map 'te-pass-through) ! 71: ;(define-key map "\C-l" ! 72: ; '(lambda () (interactive) (te-pass-through) (redraw-display))) ! 73: (setq terminal-map map))) ! 74: ! 75: ;(setq terminal-escape-map nil) ! 76: (if terminal-escape-map ! 77: nil ! 78: (let ((map (make-keymap))) ! 79: ;(fillarray map 'te-escape-extended-command-unread) ! 80: (fillarray map 'undefined) ! 81: (let ((s "0")) ! 82: (while (<= (aref s 0) ?9) ! 83: (define-key map s 'digit-argument) ! 84: (aset s 0 (1+ (aref s 0))))) ! 85: (define-key map "b" 'switch-to-buffer) ! 86: (define-key map "o" 'other-window) ! 87: (define-key map "e" 'te-set-escape-char) ! 88: (define-key map "\C-l" 'redraw-display) ! 89: (define-key map "\C-o" 'te-flush-pending-output) ! 90: (define-key map "m" 'te-toggle-more-processing) ! 91: (define-key map "x" 'te-escape-extended-command) ! 92: (define-key map "?" 'te-escape-help) ! 93: (define-key map (char-to-string help-char) 'te-escape-help) ! 94: (setq terminal-escape-map map))) ! 95: ! 96: (defvar te-escape-command-alist ()) ! 97: ;(setq te-escape-command-alist ()) ! 98: (if te-escape-command-alist ! 99: nil ! 100: (setq te-escape-command-alist ! 101: '(("Set Escape Character" . te-set-escape-char) ! 102: ("Refresh" . redraw-display) ! 103: ("Record Output" . te-set-output-log) ! 104: ("Photo" . te-set-output-log) ! 105: ("Tofu" . te-tofu) ;; confuse the uninitiated ! 106: ("Stuff Input" . te-stuff-string) ! 107: ("Flush Pending Output" . te-flush-pending-output) ! 108: ("Enable More Processing" . te-enable-more-processing) ! 109: ("Disable More Processing" . te-disable-more-processing) ! 110: ("Scroll at end of page" . te-do-scrolling) ! 111: ("Wrap at end of page" . te-do-wrapping) ! 112: ("Switch To Buffer" . switch-to-buffer) ! 113: ("Other Window" . other-window) ! 114: ("Kill Buffer" . kill-buffer) ! 115: ("Help" . te-escape-help) ! 116: ("Set Redisplay Interval" . te-set-redisplay-interval) ! 117: ))) ! 118: ! 119: ;(setq terminal-more-break-map nil) ! 120: (if terminal-more-break-map ! 121: nil ! 122: (let ((map (make-keymap))) ! 123: (fillarray map 'te-more-break-unread) ! 124: (define-key map (char-to-string help-char) 'te-more-break-help) ! 125: (define-key map " " 'te-more-break-resume) ! 126: (define-key map "\C-l" 'redraw-display) ! 127: (define-key map "\C-o" 'te-more-break-flush-pending-output) ! 128: ;;>>> this isn't right ! 129: ;(define-key map "\^?" 'te-more-break-flush-pending-output) ;DEL ! 130: (define-key map "\r" 'te-more-break-advance-one-line) ! 131: ! 132: (setq terminal-more-break-map map))) ! 133: ! 134: ! 135: ;;;; escape map ! 136: ! 137: (defun te-escape () ! 138: (interactive) ! 139: (let (s ! 140: (local (current-local-map)) ! 141: (global (current-global-map))) ! 142: (unwind-protect ! 143: (progn ! 144: (use-global-map terminal-escape-map) ! 145: (use-local-map terminal-escape-map) ! 146: (setq s (read-key-sequence ! 147: (if prefix-arg ! 148: (format "Emacs Terminal escape> %d " ! 149: (prefix-numeric-value prefix-arg)) ! 150: "Emacs Terminal escape> ")))) ! 151: (use-global-map global) ! 152: (use-local-map local)) ! 153: (message "") ! 154: (cond ((string= s (make-string 1 terminal-escape-char)) ! 155: (setq last-command-char terminal-escape-char) ! 156: (let ((terminal-escape-char -259)) ! 157: (te-pass-through))) ! 158: ((setq s (lookup-key terminal-escape-map s)) ! 159: (call-interactively s))))) ! 160: ! 161: (defun te-escape-help () ! 162: "Provide help on commands available after terminal-escape-char is typed." ! 163: (interactive) ! 164: (message "Terminal emulator escape help...") ! 165: (let ((char (single-key-description terminal-escape-char))) ! 166: (with-electric-help ! 167: (function (lambda () ! 168: (princ (format "Terminal-emulator escape, invoked by \"%s\" ! 169: Type \"%s\" twice to send a single \"%s\" through. ! 170: ! 171: Other chars following \"%s\" are interpreted as follows:\n" ! 172: char char char char)) ! 173: ! 174: (princ (substitute-command-keys "\\{terminal-escape-map}\n")) ! 175: (princ (format "\nSubcommands of \"%s\" (%s)\n" ! 176: (where-is-internal 'te-escape-extended-command ! 177: terminal-escape-map t) ! 178: 'te-escape-extended-command)) ! 179: (let ((l (if (fboundp 'sortcar) ! 180: (sortcar (copy-sequence te-escape-command-alist) ! 181: 'string<) ! 182: (sort (copy-sequence te-escape-command-alist) ! 183: (function (lambda (a b) ! 184: (string< (car a) (car b)))))))) ! 185: (while l ! 186: (let ((doc (or (documentation (cdr (car l))) ! 187: "Not documented"))) ! 188: (if (string-match "\n" doc) ! 189: ;; just use first line of documentation ! 190: (setq doc (substring doc 0 (match-beginning 0)))) ! 191: (princ " \"") ! 192: (princ (car (car l))) ! 193: (princ "\":\n ") ! 194: (princ doc) ! 195: (write-char ?\n)) ! 196: (setq l (cdr l)))) ! 197: nil))))) ! 198: ! 199: ! 200: ! 201: (defun te-escape-extended-command () ! 202: (interactive) ! 203: (let ((c (let ((completion-ignore-case t)) ! 204: (completing-read "terminal command: " ! 205: te-escape-command-alist ! 206: nil t)))) ! 207: (if c ! 208: (catch 'foo ! 209: (setq c (downcase c)) ! 210: (let ((l te-escape-command-alist)) ! 211: (while l ! 212: (if (string= c (downcase (car (car l)))) ! 213: (throw 'foo (call-interactively (cdr (car l)))) ! 214: (setq l (cdr l))))))))) ! 215: ! 216: ;; not used. ! 217: (defun te-escape-extended-command-unread () ! 218: (interactive) ! 219: (setq unread-command-char last-input-char) ! 220: (te-escape-extended-command)) ! 221: ! 222: (defun te-set-escape-char (c) ! 223: "Change the terminal-emulator escape character." ! 224: (interactive "cSet escape character to: ") ! 225: (let ((o terminal-escape-char)) ! 226: (message (if (= o c) ! 227: "\"%s\" is escape char" ! 228: "\"%s\" is now escape; \"%s\" passes though") ! 229: (single-key-description c) ! 230: (single-key-description o)) ! 231: (setq terminal-escape-char c))) ! 232: ! 233: ! 234: (defun te-stuff-string (string) ! 235: "Read a string to send to through the terminal emulator ! 236: as though that string had been typed on the keyboard. ! 237: ! 238: Very poor man's file transfer protocol." ! 239: (interactive "sStuff string: ") ! 240: (process-send-string te-process string)) ! 241: ! 242: (defun te-set-output-log (name) ! 243: "Record output from the terminal emulator in a buffer." ! 244: (interactive (list (if te-log-buffer ! 245: nil ! 246: (read-buffer "Record output in buffer: " ! 247: (format "%s output-log" ! 248: (buffer-name (current-buffer))) ! 249: nil)))) ! 250: (if (or (null name) (equal name "")) ! 251: (progn (setq te-log-buffer nil) ! 252: (message "Output logging off.")) ! 253: (if (get-buffer name) ! 254: nil ! 255: (save-excursion ! 256: (set-buffer (get-buffer-create name)) ! 257: (fundamental-mode) ! 258: (buffer-flush-undo (current-buffer)) ! 259: (erase-buffer))) ! 260: (setq te-log-buffer (get-buffer name)) ! 261: (message "Recording terminal emulator output into buffer \"%s\"" ! 262: (buffer-name te-log-buffer)))) ! 263: ! 264: (defun te-tofu () ! 265: "Discontinue output log." ! 266: (interactive) ! 267: (te-set-output-log nil)) ! 268: ! 269: ! 270: (defun te-toggle (sym arg) ! 271: (set sym (cond ((not (numberp arg)) arg) ! 272: ((= arg 1) (not (symbol-value sym))) ! 273: ((< arg 0) nil) ! 274: (t t)))) ! 275: ! 276: (defun te-toggle-more-processing (arg) ! 277: (interactive "p") ! 278: (message (if (te-toggle 'terminal-more-processing arg) ! 279: "More processing on" "More processing off")) ! 280: (if terminal-more-processing (setq te-more-count -1))) ! 281: ! 282: (defun te-toggle-scrolling (arg) ! 283: (interactive "p") ! 284: (message (if (te-toggle 'terminal-scrolling arg) ! 285: "Scroll at end of page" "Wrap at end of page"))) ! 286: ! 287: (defun te-enable-more-processing () ! 288: "Enable ** MORE ** processing" ! 289: (interactive) ! 290: (te-toggle-more-processing t)) ! 291: ! 292: (defun te-disable-more-processing () ! 293: "Disable ** MORE ** processing" ! 294: (interactive) ! 295: (te-toggle-more-processing nil)) ! 296: ! 297: (defun te-do-scrolling () ! 298: "Scroll at end of page (yuck)" ! 299: (interactive) ! 300: (te-toggle-scrolling t)) ! 301: ! 302: (defun te-do-wrapping () ! 303: "Wrap to top of window at end of page" ! 304: (interactive) ! 305: (te-toggle-scrolling nil)) ! 306: ! 307: ! 308: (defun te-set-redisplay-interval (arg) ! 309: "Set the maximum interval (in output characters) between screen updates. ! 310: Set this number to large value for greater throughput, ! 311: set it smaller for more frequent updates (but overall slower performance." ! 312: (interactive "NMax number of output chars between redisplay updates: ") ! 313: (setq arg (max arg 1)) ! 314: (setq terminal-redisplay-interval arg ! 315: te-redisplay-count 0)) ! 316: ! 317: ;;;; more map ! 318: ! 319: ;; every command -must- call te-more-break-unwind ! 320: ;; or grave lossage will result ! 321: ! 322: (put 'te-more-break-unread 'suppress-keymap t) ! 323: (defun te-more-break-unread () ! 324: (interactive) ! 325: (if (= last-input-char terminal-escape-char) ! 326: (call-interactively 'te-escape) ! 327: (message "Continuing from more break (\"%s\" typed, %d chars output pending...)" ! 328: (single-key-description last-input-char) ! 329: (te-pending-output-length)) ! 330: (setq te-more-count 259259) ! 331: (te-more-break-unwind) ! 332: (let ((terminal-more-processing nil)) ! 333: (te-pass-through)))) ! 334: ! 335: (defun te-more-break-resume () ! 336: "Proceed past the **MORE** break, ! 337: allowing the next page of output to appear" ! 338: (interactive) ! 339: (message "Continuing from more break") ! 340: (te-more-break-unwind)) ! 341: ! 342: (defun te-more-break-help () ! 343: "Provide help on commands available in a terminal-emulator **MORE** break" ! 344: (interactive) ! 345: (message "Terminal-emulator more break help...") ! 346: (sit-for 0) ! 347: (with-electric-help ! 348: (function (lambda () ! 349: (princ "Terminal-emulator more break.\n\n") ! 350: (princ (format "Type \"%s\" (te-more-break-resume)\n%s\n" ! 351: (where-is-internal 'te-more-break-resume ! 352: terminal-more-break-map t) ! 353: (documentation 'te-more-break-resume))) ! 354: (princ (substitute-command-keys "\\{terminal-more-break-map}\n")) ! 355: (princ "Any other key is passed through to the program ! 356: running under the terminal emulator and disables more processing until ! 357: all pending output has been dealt with.") ! 358: nil)))) ! 359: ! 360: ! 361: (defun te-more-break-advance-one-line () ! 362: "Allow one more line of text to be output before doing another more break." ! 363: (interactive) ! 364: (setq te-more-count 1) ! 365: (te-more-break-unwind)) ! 366: ! 367: (defun te-more-break-flush-pending-output () ! 368: "Discard any output which has been received by the terminal emulator but ! 369: not yet proceesed and then proceed from the more break." ! 370: (interactive) ! 371: (te-more-break-unwind) ! 372: (te-flush-pending-output)) ! 373: ! 374: (defun te-flush-pending-output () ! 375: "Discard any as-yet-unprocessed output which has been received by ! 376: the terminal emulator." ! 377: (interactive) ! 378: ;; this could conceivably be confusing in the presence of ! 379: ;; escape-sequences spanning process-output chunks ! 380: (if (null (cdr te-pending-output)) ! 381: (message "(There is no output pending)") ! 382: (let ((length (te-pending-output-length))) ! 383: (message "Flushing %d chars of pending output" length) ! 384: (setq te-pending-output ! 385: (list 0 (format "\n*** %d chars of pending output flushed ***\n" ! 386: length))) ! 387: (te-update-pending-output-display) ! 388: (te-process-output nil) ! 389: (sit-for 0)))) ! 390: ! 391: ! 392: (defun te-pass-through () ! 393: "Send the last character typed through the terminal-emulator ! 394: without any interpretation" ! 395: (interactive) ! 396: (if (eql last-input-char terminal-escape-char) ! 397: (call-interactively 'te-escape) ! 398: (and terminal-more-processing ! 399: (null (cdr te-pending-output)) ! 400: (te-set-more-count nil)) ! 401: (send-string te-process (make-string 1 last-input-char)) ! 402: (te-process-output t))) ! 403: ! 404: (defun te-set-window-start () ! 405: (let* ((w (get-buffer-window (current-buffer))) ! 406: (h (if w (window-height w)))) ! 407: (cond ((not w)) ; buffer not displayed ! 408: ((>= h (/ (- (point) (point-min)) (1+ te-width))) ! 409: ;; this is the normal case ! 410: (set-window-start w (point-min))) ! 411: ;; this happens if some vandal shrinks our window. ! 412: ((>= h (/ (- (point-max) (point)) (1+ te-width))) ! 413: (set-window-start w (- (point-max) (* h (1+ te-width)) -1))) ! 414: ;; I give up. ! 415: (t nil)))) ! 416: ! 417: (defun te-pending-output-length () ! 418: (let ((length (car te-pending-output)) ! 419: (tem (cdr te-pending-output))) ! 420: (while tem ! 421: (setq length (+ length (length (car tem))) tem (cdr tem))) ! 422: length)) ! 423: ! 424: ;;;; more break hair ! 425: ! 426: (defun te-more-break () ! 427: (te-set-more-count t) ! 428: (make-local-variable 'te-more-old-point) ! 429: (setq te-more-old-point (point)) ! 430: (make-local-variable 'te-more-old-local-map) ! 431: (setq te-more-old-local-map (current-local-map)) ! 432: (use-local-map terminal-more-break-map) ! 433: (make-local-variable 'te-more-old-filter) ! 434: (setq te-more-old-filter (process-filter te-process)) ! 435: (make-local-variable 'te-more-old-mode-line-format) ! 436: (setq te-more-old-mode-line-format mode-line-format ! 437: mode-line-format (list "-- **MORE** " ! 438: mode-line-buffer-identification ! 439: "%-")) ! 440: (set-process-filter te-process ! 441: (function (lambda (process string) ! 442: (save-excursion ! 443: (set-buffer (process-buffer process)) ! 444: (setq te-pending-output (nconc te-pending-output ! 445: (list string)))) ! 446: (te-update-pending-output-display)))) ! 447: (te-update-pending-output-display) ! 448: (if (eq (window-buffer (selected-window)) (current-buffer)) ! 449: (message "More break ")) ! 450: (or (eobp) ! 451: (null terminal-more-break-insertion) ! 452: (save-excursion ! 453: (forward-char 1) ! 454: (delete-region (point) (+ (point) te-width)) ! 455: (insert terminal-more-break-insertion))) ! 456: (run-hooks 'terminal-more-break-hook) ! 457: (sit-for 0) ;get display to update ! 458: (throw 'te-process-output t)) ! 459: ! 460: (defun te-more-break-unwind () ! 461: (use-local-map te-more-old-local-map) ! 462: (set-process-filter te-process te-more-old-filter) ! 463: (goto-char te-more-old-point) ! 464: (setq mode-line-format te-more-old-mode-line-format) ! 465: (set-buffer-modified-p (buffer-modified-p)) ! 466: (let ((buffer-read-only nil)) ! 467: (cond ((eobp)) ! 468: (terminal-more-break-insertion ! 469: (forward-char 1) ! 470: (delete-region (point) ! 471: (+ (point) (length terminal-more-break-insertion))) ! 472: (insert-char ?\ te-width) ! 473: (goto-char te-more-old-point))) ! 474: (setq te-more-old-point nil) ! 475: (let ((te-more-count 259259)) ! 476: (te-newline))) ! 477: ;(sit-for 0) ! 478: (te-process-output t)) ! 479: ! 480: (defun te-set-more-count (newline) ! 481: (let ((line (/ (- (point) (point-min)) (1+ te-width)))) ! 482: (if newline (setq line (1+ line))) ! 483: (cond ((= line te-height) ! 484: (setq te-more-count te-height)) ! 485: ;>>>> something is strange. Investigate this! ! 486: ((= line (1- te-height)) ! 487: (setq te-more-count te-height)) ! 488: ((or (< line (/ te-height 2)) ! 489: (> (- te-height line) 10)) ! 490: ;; break at end of this page ! 491: (setq te-more-count (- te-height line))) ! 492: (t ! 493: ;; migrate back towards top (ie bottom) of screen. ! 494: (setq te-more-count (- te-height ! 495: (if (> te-height 10) 2 1))))))) ! 496: ! 497: ! 498: ;;;; More or less straight-forward terminal escapes ! 499: ! 500: ;; ^j, meaning `newline' to non-display programs. ! 501: ;; (Who would think of ever writing a system which doesn't understand ! 502: ;; display terminals natively? Un*x: The Operating System of the Future.) ! 503: (defun te-newline () ! 504: "Move down a line, optionally do more processing, perhaps wrap/scroll, ! 505: move to start of new line, clear to end of line." ! 506: (end-of-line) ! 507: (cond ((not terminal-more-processing)) ! 508: ((< (setq te-more-count (1- te-more-count)) 0) ! 509: (te-set-more-count t)) ! 510: ((eql te-more-count 0) ! 511: ;; this doesn't return ! 512: (te-more-break))) ! 513: (if (eobp) ! 514: (progn ! 515: (delete-region (point-min) (+ (point-min) te-width)) ! 516: (goto-char (point-min)) ! 517: (if terminal-scrolling ! 518: (progn (delete-char 1) ! 519: (goto-char (point-max)) ! 520: (insert ?\n)))) ! 521: (forward-char 1) ! 522: (delete-region (point) (+ (point) te-width))) ! 523: (insert-char ?\ te-width) ! 524: (beginning-of-line) ! 525: (te-set-window-start)) ! 526: ! 527: ;; ^p ^j ! 528: ;; Handle the `do' or `nl' termcap capability. ! 529: ;;>> I am not sure why this broken, obsolete, capability is here. ! 530: ;;>> Perhaps it is for VIle. No comment was made about why it ! 531: ;;>> was added (in "Sun Dec 6 01:22:27 1987 Richard Stallman") ! 532: (defun te-down-vertically-or-scroll () ! 533: "Move down a line vertically, or scroll at bottom." ! 534: (let ((column (current-column))) ! 535: (end-of-line) ! 536: (if (eobp) ! 537: (progn ! 538: (delete-region (point-min) (+ (point-min) te-width)) ! 539: (goto-char (point-min)) ! 540: (delete-char 1) ! 541: (goto-char (point-max)) ! 542: (insert ?\n) ! 543: (insert-char ?\ te-width) ! 544: (beginning-of-line)) ! 545: (forward-line 1)) ! 546: (move-to-column column)) ! 547: (te-set-window-start)) ! 548: ! 549: ; ^p = x+32 y+32 ! 550: (defun te-move-to-position () ! 551: ;; must offset by #o40 since cretinous unix won't send a 004 char through ! 552: (let ((y (- (te-get-char) 32)) ! 553: (x (- (te-get-char) 32))) ! 554: (if (or (> x te-width) ! 555: (> y te-height)) ! 556: () ;(error "fucked %d %d" x y) ! 557: (goto-char (+ (point-min) x (* y (1+ te-width)))) ! 558: ;(te-set-window-start?) ! 559: )) ! 560: (setq te-more-count -1)) ! 561: ! 562: ! 563: ! 564: ;; ^p c ! 565: (defun te-clear-rest-of-line () ! 566: (save-excursion ! 567: (let ((n (- (point) (progn (end-of-line) (point))))) ! 568: (delete-region (point) (+ (point) n)) ! 569: (insert-char ?\ (- n))))) ! 570: ! 571: ! 572: ;; ^p C ! 573: (defun te-clear-rest-of-screen () ! 574: (save-excursion ! 575: (te-clear-rest-of-line) ! 576: (while (progn (end-of-line) (not (eobp))) ! 577: (forward-char 1) (end-of-line) ! 578: (delete-region (- (point) te-width) (point)) ! 579: (insert-char ?\ te-width)))) ! 580: ! 581: ! 582: ;; ^p ^l ! 583: (defun te-clear-screen () ! 584: ;; regenerate buffer to compensate for (nonexistent!!) bugs. ! 585: (erase-buffer) ! 586: (let ((i 0)) ! 587: (while (< i te-height) ! 588: (setq i (1+ i)) ! 589: (insert-char ?\ te-width) ! 590: (insert ?\n))) ! 591: (delete-region (1- (point-max)) (point-max)) ! 592: (goto-char (point-min)) ! 593: (setq te-more-count -1)) ! 594: ! 595: ! 596: ;; ^p ^o count+32 ! 597: (defun te-insert-lines () ! 598: (if (not (bolp)) ! 599: ();(error "fooI") ! 600: (save-excursion ! 601: (let* ((line (- te-height (/ (- (point) (point-min)) (1+ te-width)) -1)) ! 602: (n (min (- (te-get-char) ?\ ) line)) ! 603: (i 0)) ! 604: (delete-region (- (point-max) (* n (1+ te-width))) (point-max)) ! 605: (if (eql (point) (point-max)) (insert ?\n)) ! 606: (while (< i n) ! 607: (setq i (1+ i)) ! 608: (insert-char ?\ te-width) ! 609: (or (eql i line) (insert ?\n)))))) ! 610: (setq te-more-count -1)) ! 611: ! 612: ! 613: ;; ^p ^k count+32 ! 614: (defun te-delete-lines () ! 615: (if (not (bolp)) ! 616: ();(error "fooD") ! 617: (let* ((line (- te-height (/ (- (point) (point-min)) (1+ te-width)) -1)) ! 618: (n (min (- (te-get-char) ?\ ) line)) ! 619: (i 0)) ! 620: (delete-region (point) ! 621: (min (+ (point) (* n (1+ te-width))) (point-max))) ! 622: (save-excursion ! 623: (goto-char (point-max)) ! 624: (while (< i n) ! 625: (setq i (1+ i)) ! 626: (insert-char ?\ te-width) ! 627: (or (eql i line) (insert ?\n)))))) ! 628: (setq te-more-count -1)) ! 629: ! 630: ;; ^p ^a ! 631: (defun te-beginning-of-line () ! 632: (beginning-of-line)) ! 633: ! 634: ;; ^p ^b ! 635: (defun te-backward-char () ! 636: (if (not (bolp)) ! 637: (backward-char 1))) ! 638: ! 639: ;; ^p ^f ! 640: (defun te-forward-char () ! 641: (if (not (eolp)) ! 642: (forward-char 1))) ! 643: ! 644: ! 645: ;; 0177 ! 646: (defun te-delete () ! 647: (if (bolp) ! 648: () ! 649: (delete-region (1- (point)) (point)) ! 650: (insert ?\ ) ! 651: (forward-char -1))) ! 652: ! 653: ;; ^p ^g ! 654: (defun te-beep () ! 655: (beep)) ! 656: ! 657: ! 658: ;; ^p _ count+32 ! 659: (defun te-insert-spaces () ! 660: (let* ((p (point)) ! 661: (n (min (- (te-get-char) 32) ! 662: (- (progn (end-of-line) (point)) p)))) ! 663: (if (<= n 0) ! 664: nil ! 665: (delete-char (- n)) ! 666: (goto-char p) ! 667: (insert-char ?\ n)) ! 668: (goto-char p))) ! 669: ! 670: ;; ^p d count+32 (should be ^p ^d but cretinous un*x won't send ^d chars!!!) ! 671: (defun te-delete-char () ! 672: (let* ((p (point)) ! 673: (n (min (- (te-get-char) 32) ! 674: (- (progn (end-of-line) (point)) p)))) ! 675: (if (<= n 0) ! 676: nil ! 677: (insert-char ?\ n) ! 678: (goto-char p) ! 679: (delete-char n)) ! 680: (goto-char p))) ! 681: ! 682: ! 683: ! 684: ;; disgusting unix-required shit ! 685: ;; Are we living twenty years in the past yet? ! 686: ! 687: (defun te-losing-unix () ! 688: ;(what lossage) ! 689: ;(message "fucking-unix: %d" char) ! 690: ) ! 691: ! 692: ;; ^i ! 693: (defun te-output-tab () ! 694: (let* ((p (point)) ! 695: (x (- p (progn (beginning-of-line) (point)))) ! 696: (l (min (- 8 (logand x 7)) ! 697: (progn (end-of-line) (- (point) p))))) ! 698: (goto-char (+ p l)))) ! 699: ! 700: ;; Also: ! 701: ;; ^m => beginning-of-line (for which it -should- be using ^p ^a, right?!!) ! 702: ;; ^g => te-beep (for which it should use ^p ^g) ! 703: ;; ^h => te-backward-char (for which it should use ^p ^b) ! 704: ! 705: ! 706: ! 707: (defun te-filter (process string) ! 708: (let* ((obuf (current-buffer)) ! 709: (m meta-flag)) ! 710: ;; can't use save-excursion, as that preserves point, which we don't want ! 711: (unwind-protect ! 712: (progn ! 713: (set-buffer (process-buffer process)) ! 714: (goto-char te-saved-point) ! 715: (and (bufferp te-log-buffer) ! 716: (if (null (buffer-name te-log-buffer)) ! 717: ;; killed ! 718: (setq te-log-buffer nil) ! 719: (set-buffer te-log-buffer) ! 720: (goto-char (point-max)) ! 721: (insert string) ! 722: (set-buffer (process-buffer process)))) ! 723: (setq te-pending-output (nconc te-pending-output (list string))) ! 724: (te-update-pending-output-display) ! 725: ;; this binding is needed because emacs looks at meta-flag when ! 726: ;; the keystroke is read from the keyboard, not when it is about ! 727: ;; to be fed into a keymap (or returned by read-char) ! 728: ;; There still could be some screws, though. ! 729: (let ((meta-flag m)) ! 730: (te-process-output (eq (current-buffer) ! 731: (window-buffer (selected-window))))) ! 732: (set-buffer (process-buffer process)) ! 733: (setq te-saved-point (point))) ! 734: (set-buffer obuf)))) ! 735: ! 736: ;; fucking unix has -such- braindamaged lack of tty control... ! 737: (defun te-process-output (preemptable) ! 738: ;;>> There seems no good reason to ever disallow preemption ! 739: (setq preemptable t) ! 740: (catch 'te-process-output ! 741: (let ((buffer-read-only nil) ! 742: (string nil) ostring start char (matchpos nil)) ! 743: (while (cdr te-pending-output) ! 744: (setq ostring string ! 745: start (car te-pending-output) ! 746: string (car (cdr te-pending-output)) ! 747: char (aref string start)) ! 748: (if (eql (setq start (1+ start)) (length string)) ! 749: (progn (setq te-pending-output ! 750: (cons 0 (cdr (cdr te-pending-output))) ! 751: start 0 ! 752: string (car (cdr te-pending-output))) ! 753: (te-update-pending-output-display)) ! 754: (setcar te-pending-output start)) ! 755: (if (and (> char ?\037) (< char ?\377)) ! 756: (cond ((eolp) ! 757: ;; unread char ! 758: (if (eql start 0) ! 759: (setq te-pending-output ! 760: (cons 0 (cons (make-string 1 char) ! 761: (cdr te-pending-output)))) ! 762: (setcar te-pending-output (1- start))) ! 763: (te-newline)) ! 764: ((null string) ! 765: (delete-char 1) (insert char) ! 766: (te-redisplay-if-necessary 1)) ! 767: (t ! 768: (let ((end (or (and (eq ostring string) matchpos) ! 769: (setq matchpos (string-match ! 770: "[\000-\037\177-\377]" ! 771: string start)) ! 772: (length string)))) ! 773: (delete-char 1) (insert char) ! 774: (setq char (point)) (end-of-line) ! 775: (setq end (min end (+ start (- (point) char)))) ! 776: (goto-char char) ! 777: (if (eql end matchpos) (setq matchpos nil)) ! 778: (delete-region (point) (+ (point) (- end start))) ! 779: (insert (if (and (eql start 0) ! 780: (eql end (length string))) ! 781: string ! 782: (substring string start end))) ! 783: (if (eql end (length string)) ! 784: (setq te-pending-output ! 785: (cons 0 (cdr (cdr te-pending-output)))) ! 786: (setcar te-pending-output end)) ! 787: (te-redisplay-if-necessary (1+ (- end start)))))) ! 788: ;; I suppose if I split the guts of this out into a separate ! 789: ;; function we could trivially emulate different terminals ! 790: ;; Who cares in any case? (Apart from stupid losers using rlogin) ! 791: (funcall ! 792: (if (eql char ?\^p) ! 793: (or (cdr (assq (te-get-char) ! 794: '((?= . te-move-to-position) ! 795: (?c . te-clear-rest-of-line) ! 796: (?C . te-clear-rest-of-screen) ! 797: (?\C-o . te-insert-lines) ! 798: (?\C-k . te-delete-lines) ! 799: ;; not necessary, but help sometimes. ! 800: (?\C-a . te-beginning-of-line) ! 801: (?\C-b . te-backward-char) ! 802: ;; should be C-d, but un*x ! 803: ;; pty's won't send \004 through! ! 804: ;; Can you believe this? ! 805: (?d . te-delete-char) ! 806: (?_ . te-insert-spaces) ! 807: ;; random ! 808: (?\C-f . te-forward-char) ! 809: (?\C-g . te-beep) ! 810: (?\C-j . te-down-vertically-or-scroll) ! 811: (?\C-l . te-clear-screen) ! 812: ))) ! 813: 'te-losing-unix) ! 814: (or (cdr (assq char ! 815: '((?\C-j . te-newline) ! 816: (?\177 . te-delete) ! 817: ;; Did I ask to be sent these characters? ! 818: ;; I don't remember doing so, either. ! 819: ;; (Perhaps some operating system or ! 820: ;; other is completely incompetent...) ! 821: (?\C-m . te-beginning-of-line) ;fuck me harder ! 822: (?\C-g . te-beep) ;again and again! ! 823: (?\C-h . te-backward-char) ;wa12id!! ! 824: (?\C-i . te-output-tab)))) ;(spiked) ! 825: 'te-losing-unix))) ;That feels better ! 826: (te-redisplay-if-necessary 1)) ! 827: (and preemptable ! 828: (input-pending-p) ! 829: ;; preemptable output! Oh my!! ! 830: (throw 'te-process-output t))))) ! 831: ;; We must update window-point in every window displaying our buffer ! 832: (let* ((s (selected-window)) ! 833: (w s)) ! 834: (while (not (eq s (setq w (next-window w)))) ! 835: (if (eq (window-buffer w) (current-buffer)) ! 836: (set-window-point w (point)))))) ! 837: ! 838: (defun te-get-char () ! 839: (if (cdr te-pending-output) ! 840: (let ((start (car te-pending-output)) ! 841: (string (car (cdr te-pending-output)))) ! 842: (prog1 (aref string start) ! 843: (if (eql (setq start (1+ start)) (length string)) ! 844: (setq te-pending-output (cons 0 (cdr (cdr te-pending-output)))) ! 845: (setcar te-pending-output start)))) ! 846: (catch 'char ! 847: (let ((filter (process-filter te-process))) ! 848: (unwind-protect ! 849: (progn ! 850: (set-process-filter te-process ! 851: (function (lambda (p s) ! 852: (or (eql (length s) 1) ! 853: (setq te-pending-output (list 1 s))) ! 854: (throw 'char (aref s 0))))) ! 855: (accept-process-output te-process)) ! 856: (set-process-filter te-process filter)))))) ! 857: ! 858: ! 859: (defun te-redisplay-if-necessary (length) ! 860: (and (<= (setq te-redisplay-count (- te-redisplay-count length)) 0) ! 861: (eq (current-buffer) (window-buffer (selected-window))) ! 862: (waiting-for-user-input-p) ! 863: (progn (te-update-pending-output-display) ! 864: (sit-for 0) ! 865: (setq te-redisplay-count terminal-redisplay-interval)))) ! 866: ! 867: (defun te-update-pending-output-display () ! 868: (if (null (cdr te-pending-output)) ! 869: (setq te-pending-output-info "") ! 870: (let ((length (te-pending-output-length))) ! 871: (if (< length 1500) ! 872: (setq te-pending-output-info "") ! 873: (setq te-pending-output-info (format "(%dK chars output pending) " ! 874: (/ (+ length 512) 1024)))))) ! 875: ;; update mode line ! 876: (set-buffer-modified-p (buffer-modified-p))) ! 877: ! 878: ! 879: (defun te-sentinel (process message) ! 880: (cond ((eq (process-status process) 'run)) ! 881: ((null (buffer-name (process-buffer process)))) ;deleted ! 882: (t (let ((b (current-buffer))) ! 883: (save-excursion ! 884: (set-buffer (process-buffer process)) ! 885: (setq buffer-read-only nil) ! 886: (fundamental-mode) ! 887: (goto-char (point-max)) ! 888: (delete-blank-lines) ! 889: (delete-horizontal-space) ! 890: (insert "\n*******\n" message "*******\n")) ! 891: (if (and (eq b (process-buffer process)) ! 892: (waiting-for-user-input-p)) ! 893: (progn (goto-char (point-max)) ! 894: (recenter -1))))))) ! 895: ! 896: (defvar te-stty-string "stty -nl new dec echo" ! 897: "Command string (to be interpreted by \"sh\") which sets the modes ! 898: of the virtual terminal to be appropriate for interactive use.") ! 899: ! 900: (defvar explicit-shell-file-name nil ! 901: "*If non-nil, is file name to use for explicitly requested inferior shell.") ! 902: ! 903: (defun terminal-emulator (buffer program args &optional width height) ! 904: "Under a display-terminal emulator in BUFFER, run PROGRAM on arguments ARGS. ! 905: ARGS is a list of argument-strings. Remaining arguments are WIDTH and HEIGHT. ! 906: BUFFER's contents are made an image of the display generated by that program, ! 907: and any input typed when BUFFER is the current Emacs buffer is sent to that ! 908: program an keyboard input. ! 909: ! 910: Interactively, BUFFER defaults to \"*terminal*\" and PROGRAM and ARGS ! 911: are parsed from an input-string using your usual shell. ! 912: WIDTH and HEIGHT are determined from the size of the current window ! 913: -- WIDTH will be one less than the window's width, HEIGHT will be its height. ! 914: ! 915: To switch buffers and leave the emulator, or to give commands ! 916: to the emulator itself (as opposed to the program running under it), ! 917: type Control-^. The following character is an emulator command. ! 918: Type Control-^ twice to send it to the subprogram. ! 919: This escape character may be changed using the variable `terminal-escape-char'. ! 920: ! 921: `Meta' characters may not currently be sent through the terminal emulator. ! 922: ! 923: Here is a list of some of the variables which control the behaviour ! 924: of the emulator -- see their documentation for more information: ! 925: terminal-escape-char, terminal-scrolling, terminal-more-processing, ! 926: terminal-redisplay-interval. ! 927: ! 928: This function calls the value of terminal-mode-hook if that exists ! 929: and is non-nil after the terminal buffer has been set up and the ! 930: subprocess started. ! 931: ! 932: Presently with `termcap' only; if somebody sends us code to make this ! 933: work with `terminfo' we will try to use it." ! 934: (interactive ! 935: (cons (save-excursion ! 936: (set-buffer (get-buffer-create "*terminal*")) ! 937: (buffer-name (if (or (not (boundp 'te-process)) ! 938: (null te-process) ! 939: (not (eq (process-status te-process) ! 940: 'run))) ! 941: (current-buffer) ! 942: (generate-new-buffer "*terminal*")))) ! 943: (append ! 944: (let* ((default-s ! 945: ;; Default shell is same thing M-x shell uses. ! 946: (or explicit-shell-file-name ! 947: (getenv "ESHELL") ! 948: (getenv "SHELL") ! 949: "/bin/sh")) ! 950: (s (read-string ! 951: (format "Run program in emulator: (default %s) " ! 952: default-s)))) ! 953: (if (equal s "") ! 954: (list default-s '()) ! 955: (te-parse-program-and-args s)))))) ! 956: (switch-to-buffer buffer) ! 957: (if (null width) (setq width (- (window-width (selected-window)) 1))) ! 958: (if (null height) (setq height (- (window-height (selected-window)) 1))) ! 959: (terminal-mode) ! 960: (setq te-width width te-height height) ! 961: (setq mode-line-buffer-identification ! 962: (list (format "Emacs terminal %dx%d: %%b " te-width te-height) ! 963: 'te-pending-output-info)) ! 964: (let ((buffer-read-only nil)) ! 965: (te-clear-screen)) ! 966: (let (process) ! 967: (while (setq process (get-buffer-process (current-buffer))) ! 968: (if (y-or-n-p (format "Kill process %s? " (process-name process))) ! 969: (delete-process process) ! 970: (error "Process %s not killed" (process-name process))))) ! 971: (condition-case err ! 972: (let ((termcap ! 973: ;; Because of Unix Brain Death(tm), we can't change ! 974: ;; the terminal type of a running process, and so ! 975: ;; terminal size and scrollability are wired-down ! 976: ;; at this point. ("Detach? What's that?") ! 977: (concat (format "emacs-virtual:co#%d:li#%d:%s" ! 978: ;; Sigh. These can't be dynamically changed. ! 979: te-width te-height (if terminal-scrolling ! 980: "" "ns:")) ! 981: ;;-- Basic things ! 982: ;; cursor-motion, bol, forward/backward char ! 983: "cm=^p=%+ %+ :cr=^p^a:le=^p^b:nd=^p^f:" ! 984: ;; newline, clear eof/eof, audible bell ! 985: "nw=^j:ce=^pc:cd=^pC:cl=^p^l:bl=^p^g:" ! 986: ;; insert/delete char/line ! 987: "IC=^p_%+ :DC=^pd%+ :AL=^p^o%+ :DL=^p^k%+ :" ! 988: ;;-- Not-widely-known (ie nonstandard) flags, which mean ! 989: ;; o writing in the last column of the last line ! 990: ;; doesn't cause idiotic scrolling, and ! 991: ;; o don't use idiotische c-s/c-q sogenannte ! 992: ;; ``flow control'' auf keinen Fall. ! 993: "LP:NF:" ! 994: ;;-- For stupid or obsolete programs ! 995: "ic=^p_!:dc=^pd!:al=^p^o!:dl=^p^k!:ho=^p= :" ! 996: ;;-- For disgusting programs. ! 997: ;; (VI? What losers need these, I wonder?) ! 998: "im=:ei=:dm=:ed=:mi:do=^p^j:nl=^p^j:bs:"))) ! 999: (if (fboundp 'start-subprocess) ! 1000: ;; this winning function would do everything, except that ! 1001: ;; rms doesn't want it. ! 1002: (setq te-process (start-subprocess "terminal-emulator" ! 1003: program args ! 1004: 'channel-type 'terminal ! 1005: 'filter 'te-filter ! 1006: 'buffer (current-buffer) ! 1007: 'sentinel 'te-sentinel ! 1008: 'modify-environment ! 1009: (list (cons "TERM" "emacs-virtual") ! 1010: (cons "TERMCAP" termcap)))) ! 1011: ;; so instead we resort to this... ! 1012: (setq te-process (start-process "terminal-emulator" (current-buffer) ! 1013: "/bin/sh" "-c" ! 1014: ;; Yuck!!! Start a shell to set some terminal ! 1015: ;; control characteristics. Then start the ! 1016: ;; "env" program to setup the terminal type ! 1017: ;; Then finally start the program we wanted. ! 1018: (format "%s; exec %s TERM=emacs-virtual %s %s" ! 1019: te-stty-string ! 1020: (te-quote-arg-for-sh ! 1021: (concat exec-directory "env")) ! 1022: (te-quote-arg-for-sh ! 1023: (concat "TERMCAP=" termcap)) ! 1024: (mapconcat 'te-quote-arg-for-sh ! 1025: (cons program args) " ")))) ! 1026: (set-process-filter te-process 'te-filter) ! 1027: (set-process-sentinel te-process 'te-sentinel))) ! 1028: (error (fundamental-mode) ! 1029: (signal (car err) (cdr err)))) ! 1030: ;; sigh ! 1031: (if (default-value 'meta-flag) ! 1032: (progn (message ! 1033: "Note: Meta key disabled due to maybe-eventually-reparable braindamage") ! 1034: (sit-for 1))) ! 1035: (message "Entering emacs terminal-emulator... Type %s %s for help" ! 1036: (single-key-description terminal-escape-char) ! 1037: (mapconcat 'single-key-description ! 1038: (where-is-internal 'te-escape-help ! 1039: terminal-escape-map ! 1040: t) ! 1041: " ")) ! 1042: (setq inhibit-quit t) ;sport death ! 1043: (use-local-map terminal-map) ! 1044: (run-hooks 'terminal-mode-hook)) ! 1045: ! 1046: (defun te-parse-program-and-args (s) ! 1047: (cond ((string-match "\\`\\([a-zA-Z0-9-+=_.@/:]+[ \t]*\\)+\\'" s) ! 1048: (let ((l ()) (p 0)) ! 1049: (while p ! 1050: (setq l (cons (if (string-match ! 1051: "\\([a-zA-Z0-9-+=_.@/:]+\\)\\([ \t]+\\)*" ! 1052: s p) ! 1053: (prog1 (substring s p (match-end 1)) ! 1054: (setq p (match-end 0)) ! 1055: (if (eql p (length s)) (setq p nil))) ! 1056: (prog1 (substring s p) ! 1057: (setq p nil))) ! 1058: l))) ! 1059: (setq l (nreverse l)) ! 1060: (list (car l) (cdr l)))) ! 1061: ((and (string-match "[ \t]" s) (not (file-exists-p s))) ! 1062: (list shell-file-name (list "-c" (concat "exec " s)))) ! 1063: (t (list s ())))) ! 1064: ! 1065: (put 'terminal-mode 'mode-class 'special) ! 1066: ;; This is only separated out from function terminal-emulator ! 1067: ;; to keep the latter a little more managable. ! 1068: (defun terminal-mode () ! 1069: "Set up variables for use f the terminal-emualtor. ! 1070: One should not call this -- it is an internal function ! 1071: of the terminal-emulator" ! 1072: (kill-all-local-variables) ! 1073: (buffer-flush-undo (current-buffer)) ! 1074: (setq major-mode 'terminal-mode) ! 1075: (setq mode-name "terminal") ! 1076: ; (make-local-variable 'Helper-return-blurb) ! 1077: ; (setq Helper-return-blurb "return to terminal simulator") ! 1078: (setq mode-line-process '(": %s")) ! 1079: (setq buffer-read-only t) ! 1080: (setq truncate-lines t) ! 1081: (make-local-variable 'terminal-escape-char) ! 1082: (setq terminal-escape-char (default-value 'terminal-escape-char)) ! 1083: (make-local-variable 'terminal-scrolling) ! 1084: (setq terminal-scrolling (default-value 'terminal-scrolling)) ! 1085: (make-local-variable 'terminal-more-processing) ! 1086: (setq terminal-more-processing (default-value 'terminal-more-processing)) ! 1087: (make-local-variable 'terminal-redisplay-interval) ! 1088: (setq terminal-redisplay-interval (default-value 'terminal-redisplay-interval)) ! 1089: (make-local-variable 'te-width) ! 1090: (make-local-variable 'te-height) ! 1091: (make-local-variable 'te-process) ! 1092: (make-local-variable 'te-pending-output) ! 1093: (setq te-pending-output (list 0)) ! 1094: (make-local-variable 'te-saved-point) ! 1095: (setq te-saved-point (point-min)) ! 1096: (make-local-variable 'te-pending-output-info) ;for the mode line ! 1097: (setq te-pending-output-info "") ! 1098: (make-local-variable 'inhibit-quit) ! 1099: ;(setq inhibit-quit t) ! 1100: (make-local-variable 'te-log-buffer) ! 1101: (setq te-log-buffer nil) ! 1102: (make-local-variable 'te-more-count) ! 1103: (setq te-more-count -1) ! 1104: (make-local-variable 'te-redisplay-count) ! 1105: (setq te-redisplay-count terminal-redisplay-interval) ! 1106: ;;>> Nothing can be done about this without decruftifying ! 1107: ;;>> emacs keymaps. ! 1108: (make-local-variable 'meta-flag) ;sigh ! 1109: (setq meta-flag nil) ! 1110: ;(use-local-map terminal-mode-map) ! 1111: ;; terminal-mode-hook is called above in function terminal-emulator ! 1112: ) ! 1113: ! 1114: ;;;; what a complete loss ! 1115: ! 1116: (defun te-quote-arg-for-sh (fuckme) ! 1117: (cond ((string-match "\\`[a-zA-Z0-9-+=_.@/:]+\\'" ! 1118: fuckme) ! 1119: fuckme) ! 1120: ((not (string-match "[$]" fuckme)) ! 1121: ;; "[\"\\]" are special to sh and the lisp reader in the same way ! 1122: (prin1-to-string fuckme)) ! 1123: (t ! 1124: (let ((harder "") ! 1125: (cretin 0) ! 1126: (stupid 0)) ! 1127: (while (cond ((>= cretin (length fuckme)) ! 1128: nil) ! 1129: ;; this is the set of chars magic with "..." in `sh' ! 1130: ((setq stupid (string-match "[\"\\$]" ! 1131: fuckme cretin)) ! 1132: t) ! 1133: (t (setq harder (concat harder ! 1134: (substring fuckme cretin))) ! 1135: nil)) ! 1136: (setq harder (concat harder (substring fuckme cretin stupid) ! 1137: ;; Can't use ?\\ since `concat' ! 1138: ;; unfortunately does prin1-to-string ! 1139: ;; on fixna. Amazing. ! 1140: "\\" ! 1141: (substring fuckme ! 1142: stupid ! 1143: (1+ stupid))) ! 1144: cretin (1+ stupid))) ! 1145: (concat "\"" harder "\"")))))
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