lisp/term.el

   1 ;;; term.el --- general command interpreter in a window stuff
   2
   3 ;; Copyright (C) 1988, 1990, 1992, 1994, 1995, 2002, 2003,
   4 ;;   2004, 2005 Free Software Foundation, Inc.
   5
   6 ;; Author: Per Bothner <per@bothner.com>
   7 ;; Maintainer: Dan Nicolaescu <dann@ics.uci.edu>, Per Bothner <per@bothner.com>
   8 ;; Based on comint mode written by: Olin Shivers <shivers@cs.cmu.edu>
   9 ;; Keywords: processes
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; GNU Emacs is free software; you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation; either version 2, or (at your option)
  16 ;; any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  25 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  26 ;; Boston, MA 02110-1301, USA.
  27
  28 ;;; Marck 13 2001
  29 ;;; Fixes for CJK support by Yong Lu <lyongu@yahoo.com>.
  30
  31 ;;; Dir/Hostname tracking and ANSI colorization by
  32 ;;; Marco Melgazzi <marco@techie.com>.
  33
  34 ;;; To see what I've modified and where it came from search for '-mm'
  35
  36 ;;; Commentary:
  37
  38 ;;; Speed considerations and a few caveats
  39 ;;; --------------------------------------
  40 ;;;
  41 ;;; While the message passing and the colorization surely introduce some
  42 ;;; overhead this has became so small that IMHO is surely outweighted by
  43 ;;; the benefits you get but, as usual, YMMV
  44 ;;;
  45 ;;; Important caveat, when deciding the cursor/'grey keys' keycodes I had to
  46 ;;; make a choice: on my Linux box this choice allows me to run all the
  47 ;;; ncurses applications without problems but make these keys
  48 ;;; uncomprehensible to all the cursesX programs.  Your mileage may vary so
  49 ;;; you may consider changing the default 'emulation'.  Just search for this
  50 ;;; piece of code and modify it as you like:
  51 ;;;
  52 ;;; ;; Which would be better:  "\e[A" or "\eOA"? readline accepts either.
  53 ;;; ;; For my configuration it's definitely better \eOA but YMMV.  -mm
  54 ;;; ;; For example: vi works with \eOA while elm wants \e[A ...
  55 ;;; (defun term-send-up    () (interactive) (term-send-raw-string "\eOA"))
  56 ;;; (defun term-send-down  () (interactive) (term-send-raw-string "\eOB"))
  57 ;;; (defun term-send-right () (interactive) (term-send-raw-string "\eOC"))
  58 ;;; (defun term-send-left  () (interactive) (term-send-raw-string "\eOD"))
  59 ;;;
  60 ;;;
  61 ;;; IMPORTANT: additions & changes
  62 ;;; ------------------------------
  63 ;;;
  64 ;;;  With this enhanced ansi-term.el you will get a reliable mechanism of
  65 ;;; directory/username/host tracking: the only drawback is that you will
  66 ;;; have to modify your shell start-up script.  It's worth it, believe me :).
  67 ;;;
  68 ;;; When you rlogin/su/telnet and the account you access has a modified
  69 ;;; startup script, you will be able to access the remote files as usual
  70 ;;; with C-x C-f, if it's needed you will have to enter a password,
  71 ;;; otherwise the file should get loaded straight away.
  72 ;;;
  73 ;;; This is useful even if you work only on one host: it often happens that,
  74 ;;; for maintenance reasons, you have to edit files 'as root': before
  75 ;;; patching term.el, I su-ed in a term.el buffer and used vi :), now I
  76 ;;; simply do a C-x C-f and, via ange-ftp, the file is automatically loaded
  77 ;;; 'as-root'.  ( If you don't want to enter the root password every time you
  78 ;;; can put it in your .netrc: note that this is -not- advisable if you're
  79 ;;; connected to the internet or if somebody else works on your workstation!)
  80 ;;;
  81 ;;; If you use wu-ftpd you can use some of its features to avoid root ftp
  82 ;;; access to the rest of the world: just put in /etc/ftphosts something like
  83 ;;;
  84 ;;; # Local access
  85 ;;; allow       root            127.0.0.1
  86 ;;;
  87 ;;; # By default nobody can't do anything
  88 ;;; deny        root            *
  89 ;;;
  90 ;;;
  91 ;;;             ----------------------------------------
  92 ;;;
  93 ;;;  If, instead of 'term', you call 'ansi-term', you get multiple term
  94 ;;; buffers, after every new call ansi-term opens a new *ansi-term*<xx> window,
  95 ;;; where <xx> is, as usual, a number...
  96 ;;;
  97 ;;;             ----------------------------------------
  98 ;;;
  99 ;;;  With the term-buffer-maximum-size you can finally decide how many
 100 ;;; scrollback lines to keep: its default is 2048 but you can change it as
 101 ;;; usual.
 102 ;;;
 103 ;;;             ----------------------------------------
 104 ;;;
 105 ;;;
 106 ;;;  ANSI colorization should work well, I've decided to limit the interpreter
 107 ;;; to five outstanding commands (like ESC [ 01;04;32;41;07m.
 108 ;;;  You shouldn't need more, if you do, tell me and I'll increase it.  It's
 109 ;;; so easy you could do it yourself...
 110 ;;;
 111 ;;;  Blink, is not supported.  Currently it's mapped as bold.
 112 ;;;
 113 ;;; Important caveat:
 114 ;;; -----------------
 115 ;;;   if you want custom colors in term.el redefine term-default-fg-color
 116 ;;;  and term-default-bg-color BEFORE loading it.
 117 ;;;
 118 ;;;             ----------------------------------------
 119 ;;;
 120 ;;;  If you'd like to check out my complete configuration, you can download
 121 ;;; it from http://www.polito.it/~s64912/things.html, it's ~500k in size and
 122 ;;; contains my .cshrc, .emacs and my whole site-lisp subdirectory.  (notice
 123 ;;; that this term.el may be newer/older than the one in there, please
 124 ;;; check!)
 125 ;;;
 126 ;;;  This complete configuration contains, among other things, a complete
 127 ;;; rectangular marking solution (based on rect-mark.el and
 128 ;;; pc-bindings.el) and should be a good example of how extensively Emacs
 129 ;;; can be configured on a ppp-connected ws.
 130 ;;;
 131 ;;;             ----------------------------------------
 132 ;;;
 133 ;;;  TODO:
 134 ;;;
 135 ;;;  - Add hooks to allow raw-mode keys to be configurable
 136 ;;;  - Which keys are better ? \eOA or \e[A ?
 137 ;;;
 138 ;;;
 139 ;;;  Changes:
 140 ;;;
 141 ;;; V4.0 January 1997
 142 ;;;
 143 ;;;   - Huge reworking of the faces code: now we only have roughly 20-30
 144 ;;;     faces for everything so we're even faster than the old md-term.el !
 145 ;;;   - Finished removing all the J-Shell code.
 146 ;;;
 147 ;;;  V3.0 January 1997
 148 ;;;
 149 ;;;  - Now all the supportable ANSI commands work well.
 150 ;;;  - Reworked a little the code: much less jsh-inspired stuff
 151 ;;;
 152 ;;;  V2.3 November
 153 ;;;
 154 ;;;  - Now all the faces are accessed through an array: much cleaner code.
 155 ;;;
 156 ;;;  V2.2 November 4 1996
 157 ;;;
 158 ;;;  - Implemented ANSI output colorization ( a bit rough but enough for
 159 ;;;    color_ls )
 160 ;;;
 161 ;;;  - Implemented a maximum limit for the scroll buffer (stolen from
 162 ;;;    comint.el)
 163 ;;;
 164 ;;;  v2.1 October 28 1996, first public release
 165 ;;;
 166 ;;;  - Some new keybindings for term-char mode ( notably home/end/...)
 167 ;;;  - Directory, hostname and username tracking via ange-ftp
 168 ;;;  - Multi-term capability via the ansi-term call
 169 ;;;
 170 ;;;  ----------------------------------------------------------------
 171 ;;;  You should/could have something like this in your .emacs to take
 172 ;;;  full advantage of this package
 173 ;;;
 174 ;;;  (add-hook 'term-mode-hook
 175 ;;;               (function
 176 ;;;                (lambda ()
 177 ;;;                      (setq term-prompt-regexp "^[^#$%>\n]*[#$%>] *")
 178 ;;;                      (make-local-variable 'mouse-yank-at-point)
 179 ;;;                      (make-local-variable 'transient-mark-mode)
 180 ;;;                      (setq mouse-yank-at-point t)
 181 ;;;                      (setq transient-mark-mode nil)
 182 ;;;                      (auto-fill-mode -1)
 183 ;;;                      (setq tab-width 8 ))))
 184 ;;;
 185 ;;;
 186 ;;;             ----------------------------------------
 187 ;;;
 188 ;;;  If you want to use color ls the best setup is to have a different file
 189 ;;; when you use eterm ( see above, mine is named .emacs_dircolors ).  This
 190 ;;; is necessary because some terminals, rxvt for example, need non-ansi
 191 ;;; hacks to work ( for example on my rxvt white is wired to fg, and to
 192 ;;; obtain normal white I have to do bold-white :)
 193 ;;;
 194 ;;;             ----------------------------------------
 195 ;;;
 196 ;;;
 197 ;;;  # Configuration file for the color ls utility
 198 ;;;  # This file goes in the /etc directory, and must be world readable.
 199 ;;;  # You can copy this file to .dir_colors in your $HOME directory to
 200 ;;;  # override the system defaults.
 201 ;;;
 202 ;;;  # COLOR needs one of these arguments: 'tty' colorizes output to ttys, but
 203 ;;;  # not pipes.  'all' adds color characters to all output.  'none' shuts
 204 ;;;  # colorization off.
 205 ;;;  COLOR tty
 206 ;;;  OPTIONS -F
 207 ;;;
 208 ;;;  # Below, there should be one TERM entry for each termtype that is
 209 ;;;  # colorizable
 210 ;;;  TERM eterm
 211 ;;;
 212 ;;;  # EIGHTBIT, followed by '1' for on, '0' for off.  (8-bit output)
 213 ;;;  EIGHTBIT 1
 214 ;;;
 215 ;;;  # Below are the color init strings for the basic file types.  A color init
 216 ;;;  # string consists of one or more of the following numeric codes:
 217 ;;;  # Attribute codes:
 218 ;;;  # 00=none 01=bold 04=underscore 05=blink 07=reverse 08=concealed
 219 ;;;  # Text color codes:
 220 ;;;  # 30=black 31=red 32=green 33=yellow 34=blue 35=magenta 36=cyan 37=white
 221 ;;;  # Background color codes:
 222 ;;;  # 40=black 41=red 42=green 43=yellow 44=blue 45=magenta 46=cyan 47=white
 223 ;;;  NORMAL 00  # global default, although everything should be something.
 224 ;;;  FILE 00            # normal file
 225 ;;;  DIR 00;37  # directory
 226 ;;;  LINK 00;36         # symbolic link
 227 ;;;  FIFO 00;37 # pipe
 228 ;;;  SOCK 40;35 # socket
 229 ;;;  BLK 33;01  # block device driver
 230 ;;;  CHR 33;01  # character device driver
 231 ;;;
 232 ;;;  # This is for files with execute permission:
 233 ;;;  EXEC 00;32
 234 ;;;
 235 ;;;  # List any file extensions like '.gz' or '.tar' that you would like ls
 236 ;;;  # to colorize below.  Put the extension, a space, and the color init
 237 ;;;  # string.  (and any comments you want to add after a '#')
 238 ;;;  .tar 01;33 # archives or compressed
 239 ;;;  .tgz 01;33
 240 ;;;  .arj 01;33
 241 ;;;  .taz 01;33
 242 ;;;  .lzh 01;33
 243 ;;;  .zip 01;33
 244 ;;;  .z   01;33
 245 ;;;  .Z   01;33
 246 ;;;  .gz  01;33
 247 ;;;  .jpg 01;35 # image formats
 248 ;;;  .gif 01;35
 249 ;;;  .bmp 01;35
 250 ;;;  .xbm 01;35
 251 ;;;  .xpm 01;35
 252 ;;;
 253 ;;;
 254 ;;;             ----------------------------------------
 255 ;;;
 256 ;;;  Notice: for directory/host/user tracking you need to have something
 257 ;;; like this in your shell startup script ( this is for tcsh but should
 258 ;;; be quite easy to port to other shells )
 259 ;;;
 260 ;;;             ----------------------------------------
 261 ;;;
 262 ;;;
 263 ;;;      set os = `uname`
 264 ;;;      set host = `hostname`
 265 ;;;      set date = `date`
 266 ;;;
 267 ;;;  # su does not change this but I'd like it to
 268 ;;;
 269 ;;;      set user = `whoami`
 270 ;;;
 271 ;;;  # ...
 272 ;;;
 273 ;;;      if ( eterm =~ $TERM ) then
 274 ;;;
 275 ;;;             echo --------------------------------------------------------------
 276 ;;;             echo Hello $user
 277 ;;;             echo Today is $date
 278 ;;;             echo We are on $host running $os under Emacs term mode
 279 ;;;             echo --------------------------------------------------------------
 280 ;;;
 281 ;;;             setenv EDITOR emacsclient
 282 ;;;
 283 ;;;   # Notice: $host and $user have been set before to 'hostname' and 'whoami'
 284 ;;;   # this is necessary because, f.e., certain versions of 'su' do not change
 285 ;;;   # $user, YMMV: if you don't want to fiddle with them define a couple
 286 ;;;   # of new variables and use these instead.
 287 ;;;   # NOTICE that there is a space between "AnSiT?" and $whatever NOTICE
 288 ;;;
 289 ;;;   # These are because we want the real cwd in the messages, not the login
 290 ;;;   # time one !
 291 ;;;
 292 ;;;             set cwd_hack='$cwd'
 293 ;;;             set host_hack='$host'
 294 ;;;             set user_hack='$user'
 295 ;;;
 296 ;;;   # Notice that the ^[ character is an ESC, not two chars.  You can
 297 ;;;   # get it in various ways, for example by typing
 298 ;;;   # echo -e '\033' > escape.file
 299 ;;;   # or by using your favourite editor
 300 ;;;
 301 ;;;             foreach temp (cd pushd)
 302 ;;;                     alias $temp "$temp \!* ; echo '\eAnSiTc' $cwd_hack"
 303 ;;;             end
 304 ;;;             alias popd 'popd ;echo "\eAnSiTc" $cwd'
 305 ;;;
 306 ;;;   # Every command that can modify the user/host/directory should be aliased
 307 ;;;   # as follows for the tracking mechanism to work.
 308 ;;;
 309 ;;;             foreach temp ( rlogin telnet rsh sh ksh csh tcsh zsh bash tcl su )
 310 ;;;                     alias $temp "$temp \!* ; echo '\eAnSiTh' $host_hack ; \
 311 ;;;                                     echo '\eAnSiTu' $user_hack ;echo '\eAnSiTc' $cwd_hack"
 312 ;;;             end
 313 ;;;
 314 ;;;   # Start up & use color ls
 315 ;;;
 316 ;;;             echo "\eAnSiTh" $host
 317 ;;;             echo "\eAnSiTu" $user
 318 ;;;             echo "\eAnSiTc" $cwd
 319 ;;;
 320 ;;;   # some housekeeping
 321 ;;;
 322 ;;;             unset cwd_hack
 323 ;;;             unset host_hack
 324 ;;;             unset user_hack
 325 ;;;             unset temp
 326 ;;;
 327 ;;;             eval `/bin/dircolors /home/marco/.emacs_dircolors`
 328 ;;;    endif
 329 ;;;
 330 ;;;  # ...
 331 ;;;
 332 ;;;  # Let's not clutter user space
 333 ;;;
 334 ;;;      unset os
 335 ;;;      unset date
 336 ;;;
 337 ;;;
 338
 339 ;;; Original Commentary:
 340 ;;; --------------------
 341
 342 ;; The changelog is at the end of this file.
 343
 344 ;; Please send me bug reports, bug fixes, and extensions, so that I can
 345 ;; merge them into the master source.
 346 ;;     - Per Bothner (bothner@cygnus.com)
 347
 348 ;; This file defines a general command-interpreter-in-a-buffer package
 349 ;; (term mode).  The idea is that you can build specific process-in-a-buffer
 350 ;; modes on top of term mode -- e.g., lisp, shell, scheme, T, soar, ....
 351 ;; This way, all these specific packages share a common base functionality,
 352 ;; and a common set of bindings, which makes them easier to use (and
 353 ;; saves code, implementation time, etc., etc.).
 354
 355 ;; For hints on converting existing process modes (e.g., tex-mode,
 356 ;; background, dbx, gdb, kermit, prolog, telnet) to use term-mode
 357 ;; instead of shell-mode, see the notes at the end of this file.
 358
 359 \f
 360 ;; Brief Command Documentation:
 361 ;;============================================================================
 362 ;; Term Mode Commands: (common to all derived modes, like cmushell & cmulisp
 363 ;; mode)
 364 ;;
 365 ;; m-p      term-previous-input           Cycle backwards in input history
 366 ;; m-n      term-next-input               Cycle forwards
 367 ;; m-r     term-previous-matching-input  Previous input matching a regexp
 368 ;; m-s     comint-next-matching-input      Next input that matches
 369 ;; return  term-send-input
 370 ;; c-c c-a term-bol                      Beginning of line; skip prompt.
 371 ;; c-d      term-delchar-or-maybe-eof     Delete char unless at end of buff.
 372 ;; c-c c-u term-kill-input                  ^u
 373 ;; c-c c-w backward-kill-word               ^w
 374 ;; c-c c-c term-interrupt-subjob            ^c
 375 ;; c-c c-z term-stop-subjob                 ^z
 376 ;; c-c c-\ term-quit-subjob                 ^\
 377 ;; c-c c-o term-kill-output                 Delete last batch of process output
 378 ;; c-c c-r term-show-output                 Show last batch of process output
 379 ;; c-c c-h term-dynamic-list-input-ring  List input history
 380 ;;
 381 ;; Not bound by default in term-mode
 382 ;; term-send-invisible                  Read a line w/o echo, and send to proc
 383 ;; (These are bound in shell-mode)
 384 ;; term-dynamic-complete                Complete filename at point.
 385 ;; term-dynamic-list-completions        List completions in help buffer.
 386 ;; term-replace-by-expanded-filename    Expand and complete filename at point;
 387 ;;                                      replace with expanded/completed name.
 388 ;; term-kill-subjob                     No mercy.
 389 ;; term-show-maximum-output            Show as much output as possible.
 390 ;; term-continue-subjob         Send CONT signal to buffer's process
 391 ;;                                      group.  Useful if you accidentally
 392 ;;                                      suspend your process (with C-c C-z).
 393
 394 ;; term-mode-hook is the term mode hook.  Basically for your keybindings.
 395 ;; term-load-hook is run after loading in this package.
 396
 397 ;;; Code:
 398
 399 ;; This is passed to the inferior in the EMACS environment variable,
 400 ;; so it is important to increase it if there are protocol-relevant changes.
 401 (defconst term-protocol-version "0.96")
 402
 403 (eval-when-compile
 404   (require 'ange-ftp))
 405 (require 'ring)
 406 (require 'ehelp)
 407
 408 (defgroup term nil
 409   "General command interpreter in a window."
 410   :group 'processes
 411   :group 'unix)
 412
 413 \f
 414 ;;; Buffer Local Variables:
 415 ;;;============================================================================
 416 ;;; Term mode buffer local variables:
 417 ;;;     term-prompt-regexp    - string       term-bol uses to match prompt.
 418 ;;;     term-delimiter-argument-list - list  For delimiters and arguments
 419 ;;;     term-last-input-start - marker       Handy if inferior always echoes
 420 ;;;     term-last-input-end   - marker       For term-kill-output command
 421 ;; For the input history mechanism:
 422 (defvar term-input-ring-size 32 "Size of input history ring.")
 423 ;;;     term-input-ring-size  - integer
 424 ;;;     term-input-ring       - ring
 425 ;;;     term-input-ring-index - number           ...
 426 ;;;     term-input-autoexpand - symbol           ...
 427 ;;;     term-input-ignoredups - boolean          ...
 428 ;;;     term-last-input-match - string           ...
 429 ;;;     term-dynamic-complete-functions - hook   For the completion mechanism
 430 ;;;     term-completion-fignore - list           ...
 431 ;;;     term-get-old-input    - function     Hooks for specific
 432 ;;;     term-input-filter-functions - hook     process-in-a-buffer
 433 ;;;     term-input-filter     - function         modes.
 434 ;;;     term-input-send - function
 435 ;;;     term-scroll-to-bottom-on-output - symbol ...
 436 ;;;     term-scroll-show-maximum-output - boolean...
 437 (defvar term-height) ;; Number of lines in window.
 438 (defvar term-width) ;; Number of columns in window.
 439 (defvar term-home-marker) ;; Marks the "home" position for cursor addressing.
 440 (defvar term-saved-home-marker nil) ;; When using alternate sub-buffer,
 441 ;;              contains saved term-home-marker from original sub-buffer .
 442 (defvar term-start-line-column 0) ;; (current-column) at start of screen line,
 443 ;;              or nil if unknown.
 444 (defvar term-current-column 0) ;; If non-nil, is cache for (current-column).
 445 (defvar term-current-row 0) ;; Current vertical row (relative to home-marker)
 446 ;;              or nil if unknown.
 447 (defvar term-insert-mode nil)
 448 (defvar term-vertical-motion)
 449 (defvar term-terminal-state 0) ;; State of the terminal emulator:
 450 ;;              state 0: Normal state
 451 ;;              state 1: Last character was a graphic in the last column.
 452 ;;              If next char is graphic, first move one column right
 453 ;;              (and line warp) before displaying it.
 454 ;;              This emulates (more or less) the behavior of xterm.
 455 ;;              state 2: seen ESC
 456 ;;              state 3: seen ESC [ (or ESC [ ?)
 457 ;;              state 4: term-terminal-parameter contains pending output.
 458 (defvar term-kill-echo-list nil) ;; A queue of strings whose echo
 459 ;;              we want suppressed.
 460 (defvar term-terminal-parameter)
 461 (defvar term-terminal-previous-parameter)
 462 (defvar term-current-face 'default)
 463 (defvar term-scroll-start 0) ;; Top-most line (inclusive) of scrolling region.
 464 (defvar term-scroll-end) ;; Number of line (zero-based) after scrolling region.
 465 (defvar term-pager-count nil) ;; If nil, paging is disabled.
 466 ;;              Otherwise, number of lines before we need to page.
 467 (defvar term-saved-cursor nil)
 468 (defvar term-command-hook)
 469 (defvar term-log-buffer nil)
 470 (defvar term-scroll-with-delete nil) ;; term-scroll-with-delete is t if
 471 ;;              forward scrolling should be implemented by delete to
 472 ;;              top-most line(s); and nil if scrolling should be implemented
 473 ;;              by moving term-home-marker.  It is set to t iff there is a
 474 ;;              (non-default) scroll-region OR the alternate buffer is used.
 475 (defvar term-pending-delete-marker) ;; New user input in line mode needs to
 476 ;;              be deleted, because it gets echoed by the inferior.
 477 ;;              To reduce flicker, we defer the delete until the next output.
 478 (defvar term-old-mode-map nil) ;; Saves the old keymap when in char mode.
 479 (defvar term-old-mode-line-format) ;; Saves old mode-line-format while paging.
 480 (defvar term-pager-old-local-map nil) ;; Saves old keymap while paging.
 481 (defvar term-pager-old-filter) ;; Saved process-filter while paging.
 482
 483 (defcustom explicit-shell-file-name nil
 484   "*If non-nil, is file name to use for explicitly requested inferior shell."
 485   :type '(choice (const nil) file)
 486   :group 'term)
 487
 488 (defvar term-prompt-regexp "^"
 489   "Regexp to recognize prompts in the inferior process.
 490 Defaults to \"^\", the null string at BOL.
 491
 492 Good choices:
 493   Canonical Lisp: \"^[^> \\n]*>+:? *\" (Lucid, franz, kcl, T, cscheme, oaklisp)
 494   Lucid Common Lisp: \"^\\\\(>\\\\|\\\\(->\\\\)+\\\\) *\"
 495   franz: \"^\\\\(->\\\\|<[0-9]*>:\\\\) *\"
 496   kcl: \"^>+ *\"
 497   shell: \"^[^#$%>\\n]*[#$%>] *\"
 498   T: \"^>+ *\"
 499
 500 This is a good thing to set in mode hooks.")
 501
 502 (defvar term-delimiter-argument-list ()
 503   "List of characters to recognize as separate arguments in input.
 504 Strings comprising a character in this list will separate the arguments
 505 surrounding them, and also be regarded as arguments in their own right (unlike
 506 whitespace).  See `term-arguments'.
 507 Defaults to the empty list.
 508
 509 For shells, a good value is (?\\| ?& ?< ?> ?\\( ?\\) ?\\;).
 510
 511 This is a good thing to set in mode hooks.")
 512
 513 (defcustom term-input-autoexpand nil
 514   "*If non-nil, expand input command history references on completion.
 515 This mirrors the optional behavior of tcsh (its autoexpand and histlit).
 516
 517 If the value is `input', then the expansion is seen on input.
 518 If the value is `history', then the expansion is only when inserting
 519 into the buffer's input ring.  See also `term-magic-space' and
 520 `term-dynamic-complete'.
 521
 522 This variable is buffer-local."
 523   :type '(choice (const nil) (const t) (const input) (const history))
 524   :group 'term)
 525
 526 (defcustom term-input-ignoredups nil
 527   "*If non-nil, don't add input matching the last on the input ring.
 528 This mirrors the optional behavior of bash.
 529
 530 This variable is buffer-local."
 531   :type 'boolean
 532   :group 'term)
 533
 534 (defcustom term-input-ring-file-name nil
 535   "*If non-nil, name of the file to read/write input history.
 536 See also `term-read-input-ring' and `term-write-input-ring'.
 537
 538 This variable is buffer-local, and is a good thing to set in mode hooks."
 539   :type 'boolean
 540   :group 'term)
 541
 542 (defcustom term-scroll-to-bottom-on-output nil
 543   "*Controls whether interpreter output causes window to scroll.
 544 If nil, then do not scroll.  If t or `all', scroll all windows showing buffer.
 545 If `this', scroll only the selected window.
 546 If `others', scroll only those that are not the selected window.
 547
 548 The default is nil.
 549
 550 See variable `term-scroll-show-maximum-output'.
 551 This variable is buffer-local."
 552   :type 'boolean
 553   :group 'term)
 554
 555 (defcustom term-scroll-show-maximum-output nil
 556   "*Controls how interpreter output causes window to scroll.
 557 If non-nil, then show the maximum output when the window is scrolled.
 558
 559 See variable `term-scroll-to-bottom-on-output'.
 560 This variable is buffer-local."
 561   :type 'boolean
 562   :group 'term)
 563
 564 ;; Where gud-display-frame should put the debugging arrow.  This is
 565 ;; set by the marker-filter, which scans the debugger's output for
 566 ;; indications of the current pc.
 567 (defvar term-pending-frame nil)
 568
 569 ;;; Here are the per-interpreter hooks.
 570 (defvar term-get-old-input (function term-get-old-input-default)
 571   "Function that submits old text in term mode.
 572 This function is called when return is typed while the point is in old text.
 573 It returns the text to be submitted as process input.  The default is
 574 `term-get-old-input-default', which grabs the current line, and strips off
 575 leading text matching `term-prompt-regexp'.")
 576
 577 (defvar term-dynamic-complete-functions
 578   '(term-replace-by-expanded-history term-dynamic-complete-filename)
 579   "List of functions called to perform completion.
 580 Functions should return non-nil if completion was performed.
 581 See also `term-dynamic-complete'.
 582
 583 This is a good thing to set in mode hooks.")
 584
 585 (defvar term-input-filter
 586   (function (lambda (str) (not (string-match "\\`\\s *\\'" str))))
 587   "Predicate for filtering additions to input history.
 588 Only inputs answering true to this function are saved on the input
 589 history list.  Default is to save anything that isn't all whitespace.")
 590
 591 (defvar term-input-filter-functions '()
 592   "Functions to call before input is sent to the process.
 593 These functions get one argument, a string containing the text to send.
 594
 595 This variable is buffer-local.")
 596
 597 (defvar term-input-sender (function term-simple-send)
 598   "Function to actually send to PROCESS the STRING submitted by user.
 599 Usually this is just `term-simple-send', but if your mode needs to
 600 massage the input string, this is your hook.  This is called from
 601 the user command `term-send-input'.  `term-simple-send' just sends
 602 the string plus a newline.")
 603
 604 (defcustom term-eol-on-send t
 605   "*Non-nil means go to the end of the line before sending input.
 606 See `term-send-input'."
 607   :type 'boolean
 608   :group 'term)
 609
 610 (defcustom term-mode-hook '()
 611   "Called upon entry into term mode.
 612 This is run before the process is cranked up."
 613   :type 'hook
 614   :group 'term)
 615
 616 (defcustom term-exec-hook '()
 617   "Called each time a process is exec'd by `term-exec'.
 618 This is called after the process is cranked up.  It is useful for things that
 619 must be done each time a process is executed in a term mode buffer (e.g.,
 620 `process-kill-without-query').  In contrast, `term-mode-hook' is only
 621 executed once when the buffer is created."
 622   :type 'hook
 623   :group 'term)
 624
 625 (defvar term-mode-map nil)
 626 (defvar term-raw-map nil
 627   "Keyboard map for sending characters directly to the inferior process.")
 628 (defvar term-escape-char nil
 629   "Escape character for char sub-mode of term mode.
 630 Do not change it directly;  use `term-set-escape-char' instead.")
 631 (defvar term-raw-escape-map nil)
 632
 633 (defvar term-pager-break-map nil)
 634
 635 (defvar term-ptyp t
 636   "True if communications via pty; false if by pipe.  Buffer local.
 637 This is to work around a bug in Emacs process signaling.")
 638
 639 (defvar term-last-input-match ""
 640   "Last string searched for by term input history search, for defaulting.
 641 Buffer local variable.")
 642
 643 (defvar term-input-ring nil)
 644 (defvar term-last-input-start)
 645 (defvar term-last-input-end)
 646 (defvar term-input-ring-index nil
 647   "Index of last matched history element.")
 648 (defvar term-matching-input-from-input-string ""
 649   "Input previously used to match input history.")
 650 ; This argument to set-process-filter disables reading from the process,
 651 ; assuming this is Emacs 19.20 or newer.
 652 (defvar term-pager-filter t)
 653
 654 (put 'term-replace-by-expanded-history 'menu-enable 'term-input-autoexpand)
 655 (put 'term-input-ring 'permanent-local t)
 656 (put 'term-input-ring-index 'permanent-local t)
 657 (put 'term-input-autoexpand 'permanent-local t)
 658 (put 'term-input-filter-functions 'permanent-local t)
 659 (put 'term-scroll-to-bottom-on-output 'permanent-local t)
 660 (put 'term-scroll-show-maximum-output 'permanent-local t)
 661 (put 'term-ptyp 'permanent-local t)
 662
 663 ;; Do FORM if running under XEmacs (previously Lucid Emacs).
 664 (defmacro term-if-xemacs (&rest forms)
 665   (if (featurep 'xemacs) (cons 'progn forms)))
 666 ;; Do FORM if NOT running under XEmacs (previously Lucid Emacs).
 667 (defmacro term-ifnot-xemacs (&rest forms)
 668   (if (not (featurep 'xemacs)) (cons 'progn forms)))
 669
 670 (defmacro term-in-char-mode () '(eq (current-local-map) term-raw-map))
 671 (defmacro term-in-line-mode () '(not (term-in-char-mode)))
 672 ;; True if currently doing PAGER handling.
 673 (defmacro term-pager-enabled () 'term-pager-count)
 674 (defmacro term-handling-pager () 'term-pager-old-local-map)
 675 (defmacro term-using-alternate-sub-buffer () 'term-saved-home-marker)
 676
 677 (defvar term-signals-menu)
 678 (defvar term-terminal-menu)
 679
 680 ;;; Let's silence the byte-compiler -mm
 681 (defvar term-ansi-at-host nil)
 682 (defvar term-ansi-at-dir nil)
 683 (defvar term-ansi-at-user nil)
 684 (defvar term-ansi-at-message nil)
 685 (defvar term-ansi-at-save-user nil)
 686 (defvar term-ansi-at-save-pwd nil)
 687 (defvar term-ansi-at-save-anon nil)
 688 (defvar term-ansi-current-bold nil)
 689 (defvar term-ansi-current-color 0)
 690 (defvar term-ansi-face-already-done nil)
 691 (defvar term-ansi-current-bg-color 0)
 692 (defvar term-ansi-current-underline nil)
 693 (defvar term-ansi-current-reverse nil)
 694 (defvar term-ansi-current-invisible nil)
 695
 696 ;;; Four should be enough, if you want more, just add. -mm
 697 (defvar term-terminal-more-parameters 0)
 698 (defvar term-terminal-previous-parameter-2 -1)
 699 (defvar term-terminal-previous-parameter-3 -1)
 700 (defvar term-terminal-previous-parameter-4 -1)
 701 ;;;
 702
 703 ;;; faces -mm
 704
 705 (defcustom term-default-fg-color 'unspecified
 706   "Default color for foreground in `term'."
 707   :group 'term
 708   :type 'string)
 709
 710 (defcustom term-default-bg-color 'unspecified
 711   "Default color for background in `term'."
 712   :group 'term
 713   :type 'string)
 714
 715 ;;; Use the same colors that xterm uses, see `xterm-standard-colors'.
 716 (defvar ansi-term-color-vector
 717   [unspecified "black" "red3" "green3" "yellow3" "blue2"
 718    "magenta3" "cyan3" "white"])
 719
 720 ;;; Inspiration came from comint.el -mm
 721 (defvar term-buffer-maximum-size 2048
 722   "*The maximum size in lines for term buffers.
 723 Term buffers are truncated from the top to be no greater than this number.
 724 Notice that a setting of 0 means 'don't truncate anything'.  This variable
 725 is buffer-local.")
 726 ;;;
 727 \f
 728 (term-if-xemacs
 729  (defvar term-terminal-menu
 730    '("Terminal"
 731      [ "Character mode" term-char-mode (term-in-line-mode)]
 732      [ "Line mode" term-line-mode (term-in-char-mode)]
 733      [ "Enable paging" term-pager-toggle (not term-pager-count)]
 734      [ "Disable paging" term-pager-toggle term-pager-count])))
 735
 736 (unless term-mode-map
 737   (setq term-mode-map (make-sparse-keymap))
 738   (define-key term-mode-map "\ep" 'term-previous-input)
 739   (define-key term-mode-map "\en" 'term-next-input)
 740   (define-key term-mode-map "\er" 'term-previous-matching-input)
 741   (define-key term-mode-map "\es" 'term-next-matching-input)
 742   (term-ifnot-xemacs
 743    (define-key term-mode-map [?\A-\M-r]
 744          'term-previous-matching-input-from-input)
 745    (define-key term-mode-map [?\A-\M-s] 'term-next-matching-input-from-input))
 746   (define-key term-mode-map "\e\C-l" 'term-show-output)
 747   (define-key term-mode-map "\C-m" 'term-send-input)
 748   (define-key term-mode-map "\C-d" 'term-delchar-or-maybe-eof)
 749   (define-key term-mode-map "\C-c\C-a" 'term-bol)
 750   (define-key term-mode-map "\C-c\C-u" 'term-kill-input)
 751   (define-key term-mode-map "\C-c\C-w" 'backward-kill-word)
 752   (define-key term-mode-map "\C-c\C-c" 'term-interrupt-subjob)
 753   (define-key term-mode-map "\C-c\C-z" 'term-stop-subjob)
 754   (define-key term-mode-map "\C-c\C-\\" 'term-quit-subjob)
 755   (define-key term-mode-map "\C-c\C-m" 'term-copy-old-input)
 756   (define-key term-mode-map "\C-c\C-o" 'term-kill-output)
 757   (define-key term-mode-map "\C-c\C-r" 'term-show-output)
 758   (define-key term-mode-map "\C-c\C-e" 'term-show-maximum-output)
 759   (define-key term-mode-map "\C-c\C-l" 'term-dynamic-list-input-ring)
 760   (define-key term-mode-map "\C-c\C-n" 'term-next-prompt)
 761   (define-key term-mode-map "\C-c\C-p" 'term-previous-prompt)
 762   (define-key term-mode-map "\C-c\C-d" 'term-send-eof)
 763   (define-key term-mode-map "\C-c\C-k" 'term-char-mode)
 764   (define-key term-mode-map "\C-c\C-j" 'term-line-mode)
 765   (define-key term-mode-map "\C-c\C-q" 'term-pager-toggle)
 766
 767 ;  ;; completion:
 768 ;  (define-key term-mode-map [menu-bar completion]
 769 ;    (cons "Complete" (make-sparse-keymap "Complete")))
 770 ;  (define-key term-mode-map [menu-bar completion complete-expand]
 771 ;    '("Expand File Name" . term-replace-by-expanded-filename))
 772 ;  (define-key term-mode-map [menu-bar completion complete-listing]
 773 ;    '("File Completion Listing" . term-dynamic-list-filename-completions))
 774 ;  (define-key term-mode-map [menu-bar completion complete-file]
 775 ;    '("Complete File Name" . term-dynamic-complete-filename))
 776 ;  (define-key term-mode-map [menu-bar completion complete]
 777 ;    '("Complete Before Point" . term-dynamic-complete))
 778 ;  ;; Put them in the menu bar:
 779 ;  (setq menu-bar-final-items (append '(terminal completion inout signals)
 780 ;                                    menu-bar-final-items))
 781   )
 782
 783 ;; Menu bars:
 784 (term-ifnot-xemacs
 785  (progn
 786
 787   ;; terminal:
 788   (let (newmap)
 789     (setq newmap (make-sparse-keymap "Terminal"))
 790     (define-key newmap [terminal-pager-enable]
 791       '("Enable paging" . term-fake-pager-enable))
 792     (define-key newmap [terminal-pager-disable]
 793       '("Disable paging" . term-fake-pager-disable))
 794     (define-key newmap [terminal-char-mode]
 795       '("Character mode" . term-char-mode))
 796     (define-key newmap [terminal-line-mode]
 797       '("Line mode" . term-line-mode))
 798     (setq term-terminal-menu (cons "Terminal" newmap))
 799
 800     ;; completion:  (line mode only)
 801     (defvar term-completion-menu (make-sparse-keymap "Complete"))
 802     (define-key term-mode-map [menu-bar completion]
 803       (cons "Complete" term-completion-menu))
 804     (define-key term-completion-menu [complete-expand]
 805       '("Expand File Name" . term-replace-by-expanded-filename))
 806     (define-key term-completion-menu [complete-listing]
 807       '("File Completion Listing" . term-dynamic-list-filename-completions))
 808     (define-key term-completion-menu [menu-bar completion complete-file]
 809       '("Complete File Name" . term-dynamic-complete-filename))
 810     (define-key term-completion-menu [menu-bar completion complete]
 811       '("Complete Before Point" . term-dynamic-complete))
 812
 813     ;; Input history: (line mode only)
 814     (defvar term-inout-menu (make-sparse-keymap "In/Out"))
 815     (define-key term-mode-map [menu-bar inout]
 816       (cons "In/Out" term-inout-menu))
 817     (define-key term-inout-menu [kill-output]
 818       '("Kill Current Output Group" . term-kill-output))
 819     (define-key term-inout-menu [next-prompt]
 820       '("Forward Output Group" . term-next-prompt))
 821     (define-key term-inout-menu [previous-prompt]
 822       '("Backward Output Group" . term-previous-prompt))
 823     (define-key term-inout-menu [show-maximum-output]
 824       '("Show Maximum Output" . term-show-maximum-output))
 825     (define-key term-inout-menu [show-output]
 826       '("Show Current Output Group" . term-show-output))
 827     (define-key term-inout-menu [kill-input]
 828       '("Kill Current Input" . term-kill-input))
 829     (define-key term-inout-menu [copy-input]
 830       '("Copy Old Input" . term-copy-old-input))
 831     (define-key term-inout-menu [forward-matching-history]
 832       '("Forward Matching Input..." . term-forward-matching-input))
 833     (define-key term-inout-menu [backward-matching-history]
 834       '("Backward Matching Input..." . term-backward-matching-input))
 835     (define-key term-inout-menu [next-matching-history]
 836       '("Next Matching Input..." . term-next-matching-input))
 837     (define-key term-inout-menu [previous-matching-history]
 838       '("Previous Matching Input..." . term-previous-matching-input))
 839     (define-key term-inout-menu [next-matching-history-from-input]
 840       '("Next Matching Current Input" . term-next-matching-input-from-input))
 841     (define-key term-inout-menu [previous-matching-history-from-input]
 842       '("Previous Matching Current Input" .
 843                 term-previous-matching-input-from-input))
 844     (define-key term-inout-menu [next-history]
 845       '("Next Input" . term-next-input))
 846     (define-key term-inout-menu [previous-history]
 847       '("Previous Input" . term-previous-input))
 848     (define-key term-inout-menu [list-history]
 849       '("List Input History" . term-dynamic-list-input-ring))
 850     (define-key term-inout-menu [expand-history]
 851       '("Expand History Before Point" . term-replace-by-expanded-history))
 852
 853     ;; Signals
 854     (setq newmap (make-sparse-keymap "Signals"))
 855     (define-key newmap [eof] '("EOF" . term-send-eof))
 856     (define-key newmap [kill] '("KILL" . term-kill-subjob))
 857     (define-key newmap [quit] '("QUIT" . term-quit-subjob))
 858     (define-key newmap [cont] '("CONT" . term-continue-subjob))
 859     (define-key newmap [stop] '("STOP" . term-stop-subjob))
 860     (define-key newmap [] '("BREAK" . term-interrupt-subjob))
 861     (define-key term-mode-map [menu-bar signals]
 862       (setq term-signals-menu (cons "Signals" newmap)))
 863     )))
 864 \f
 865 ;; Set up term-raw-map, etc.
 866
 867 (defun term-set-escape-char (c)
 868   "Change term-escape-char and keymaps that depend on it."
 869   (if term-escape-char
 870       (define-key term-raw-map term-escape-char 'term-send-raw))
 871   (setq c (make-string 1 c))
 872   (define-key term-raw-map c term-raw-escape-map)
 873   ;; Define standard bindings in term-raw-escape-map
 874   (define-key term-raw-escape-map "\C-v"
 875     (lookup-key (current-global-map) "\C-v"))
 876   (define-key term-raw-escape-map "\C-u"
 877     (lookup-key (current-global-map) "\C-u"))
 878   (define-key term-raw-escape-map c 'term-send-raw)
 879   (define-key term-raw-escape-map "\C-q" 'term-pager-toggle)
 880   ;; The keybinding for term-char-mode is needed by the menubar code.
 881   (define-key term-raw-escape-map "\C-k" 'term-char-mode)
 882   (define-key term-raw-escape-map "\C-j" 'term-line-mode)
 883   ;; It's convenient to have execute-extended-command here.
 884   (define-key term-raw-escape-map [?\M-x] 'execute-extended-command))
 885
 886 (let* ((map (make-keymap))
 887        (esc-map (make-keymap))
 888        (i 0))
 889   (while (< i 128)
 890     (define-key map (make-string 1 i) 'term-send-raw)
 891     ;; Avoid O and [. They are used in escape sequences for various keys.
 892     (unless (or (eq i ?O) (eq i 91))
 893                 (define-key esc-map (make-string 1 i) 'term-send-raw-meta))
 894     (setq i (1+ i)))
 895   (dolist (elm (generic-character-list))
 896     (define-key map (vector elm) 'term-send-raw))
 897   (define-key map "\e" esc-map)
 898   (setq term-raw-map map)
 899   (setq term-raw-escape-map
 900         (copy-keymap (lookup-key (current-global-map) "\C-x")))
 901
 902 ;;; Added nearly all the 'grey keys' -mm
 903
 904   (progn
 905     (term-if-xemacs
 906      (define-key term-raw-map [button2] 'term-mouse-paste))
 907     (term-ifnot-xemacs
 908      (define-key term-raw-map [mouse-2] 'term-mouse-paste)
 909      (define-key term-raw-map [menu-bar terminal] term-terminal-menu)
 910      (define-key term-raw-map [menu-bar signals] term-signals-menu))
 911     (define-key term-raw-map [up] 'term-send-up)
 912     (define-key term-raw-map [down] 'term-send-down)
 913     (define-key term-raw-map [right] 'term-send-right)
 914     (define-key term-raw-map [left] 'term-send-left)
 915     (define-key term-raw-map [delete] 'term-send-del)
 916     (define-key term-raw-map [deletechar] 'term-send-del)
 917     (define-key term-raw-map [backspace] 'term-send-backspace)
 918     (define-key term-raw-map [home] 'term-send-home)
 919     (define-key term-raw-map [end] 'term-send-end)
 920     (define-key term-raw-map [S-prior] 'scroll-down)
 921     (define-key term-raw-map [S-next] 'scroll-up)
 922     (define-key term-raw-map [S-insert] 'term-paste)
 923     (define-key term-raw-map [prior] 'term-send-prior)
 924     (define-key term-raw-map [next] 'term-send-next)))
 925
 926 (term-set-escape-char ?\C-c)
 927
 928 (defun term-window-width ()
 929   (if (featurep 'xemacs)
 930       (1- (window-width))
 931     (if (and window-system overflow-newline-into-fringe)
 932         (window-width)
 933       (1- (window-width)))))
 934
 935 \f
 936 (put 'term-mode 'mode-class 'special)
 937
 938
 939 ;;; Use this variable as a display table for `term-mode'.
 940 (defvar term-display-table
 941   (let ((dt (or (copy-sequence standard-display-table)
 942                 (make-display-table)))
 943         i)
 944     ;; avoid changing the display table for ^J
 945     (setq i 0)
 946     (while (< i 10)
 947       (aset dt i (vector i))
 948       (setq i (1+ i)))
 949     (setq i 11)
 950     (while (< i 32)
 951       (aset dt i (vector i))
 952       (setq i (1+ i)))
 953     (setq i 128)
 954     (while (< i 256)
 955       (aset dt i (vector i))
 956       (setq i (1+ i)))
 957     dt))
 958
 959 (defun term-mode ()
 960   "Major mode for interacting with an inferior interpreter.
 961 The interpreter name is same as buffer name, sans the asterisks.
 962
 963 There are two submodes: line mode and char mode.  By default, you are
 964 in char mode.  In char sub-mode, each character (except
 965 `term-escape-char') is sent immediately to the subprocess.
 966 The escape character is equivalent to the usual meaning of C-x.
 967
 968 In line mode, you send a line of input at a time; use
 969 \\[term-send-input] to send.
 970
 971 In line mode, this maintains an input history of size
 972 `term-input-ring-size', and you can access it with the commands
 973 \\[term-next-input], \\[term-previous-input], and
 974 \\[term-dynamic-list-input-ring].  Input ring history expansion can be
 975 achieved with the commands \\[term-replace-by-expanded-history] or
 976 \\[term-magic-space].  Input ring expansion is controlled by the
 977 variable `term-input-autoexpand', and addition is controlled by the
 978 variable `term-input-ignoredups'.
 979
 980 Input to, and output from, the subprocess can cause the window to scroll to
 981 the end of the buffer.  See variables `term-scroll-to-bottom-on-input',
 982 and `term-scroll-to-bottom-on-output'.
 983
 984 If you accidentally suspend your process, use \\[term-continue-subjob]
 985 to continue it.
 986
 987 This mode can be customized to create specific modes for running
 988 particular subprocesses.  This can be done by setting the hooks
 989 `term-input-filter-functions', `term-input-filter',
 990 `term-input-sender' and `term-get-old-input' to appropriate functions,
 991 and the variable `term-prompt-regexp' to the appropriate regular
 992 expression.
 993
 994 Commands in raw mode:
 995
 996 \\{term-raw-map}
 997
 998 Commands in line mode:
 999
1000 \\{term-mode-map}
1001
1002 Entry to this mode runs the hooks on `term-mode-hook'."
1003   (interactive)
1004   ;; Do not remove this.  All major modes must do this.
1005   (kill-all-local-variables)
1006   (setq major-mode 'term-mode)
1007   (setq mode-name "Term")
1008   (use-local-map term-mode-map)
1009   ;; we do not want indent to sneak in any tabs
1010   (setq indent-tabs-mode nil)
1011   (setq buffer-display-table term-display-table)
1012   (make-local-variable 'term-home-marker)
1013   (setq term-home-marker (copy-marker 0))
1014   (make-local-variable 'term-saved-home-marker)
1015   (make-local-variable 'term-height)
1016   (make-local-variable 'term-width)
1017   (setq term-width (term-window-width))
1018   (setq term-height (1- (window-height)))
1019   (make-local-variable 'term-terminal-parameter)
1020   (make-local-variable 'term-saved-cursor)
1021   (make-local-variable 'term-last-input-start)
1022   (setq term-last-input-start (make-marker))
1023   (make-local-variable 'term-last-input-end)
1024   (setq term-last-input-end (make-marker))
1025   (make-local-variable 'term-last-input-match)
1026   (setq term-last-input-match "")
1027   (make-local-variable 'term-prompt-regexp) ; Don't set; default
1028   (make-local-variable 'term-input-ring-size) ; ...to global val.
1029   (make-local-variable 'term-input-ring)
1030   (make-local-variable 'term-input-ring-file-name)
1031   (or (and (boundp 'term-input-ring) term-input-ring)
1032       (setq term-input-ring (make-ring term-input-ring-size)))
1033   (make-local-variable 'term-input-ring-index)
1034   (or (and (boundp 'term-input-ring-index) term-input-ring-index)
1035       (setq term-input-ring-index nil))
1036
1037   (make-local-variable 'term-command-hook)
1038   (setq term-command-hook (symbol-function 'term-command-hook))
1039
1040 ;;; I'm not sure these saves are necessary but, since I
1041 ;;; haven't tested the whole thing on a net connected machine with
1042 ;;; a properly configured ange-ftp, I've decided to be conservative
1043 ;;; and put them in. -mm
1044
1045   (make-local-variable 'term-ansi-at-host)
1046   (setq term-ansi-at-host (system-name))
1047
1048   (make-local-variable 'term-ansi-at-dir)
1049   (setq term-ansi-at-dir default-directory)
1050
1051   (make-local-variable 'term-ansi-at-message)
1052   (setq term-ansi-at-message nil)
1053
1054 ;;; For user tracking purposes -mm
1055   (make-local-variable 'ange-ftp-default-user)
1056   (make-local-variable 'ange-ftp-default-password)
1057   (make-local-variable 'ange-ftp-generate-anonymous-password)
1058
1059 ;;; You may want to have different scroll-back sizes -mm
1060   (make-local-variable 'term-buffer-maximum-size)
1061
1062 ;;; Of course these have to be buffer-local -mm
1063   (make-local-variable 'term-ansi-current-bold)
1064   (make-local-variable 'term-ansi-current-color)
1065   (make-local-variable 'term-ansi-face-already-done)
1066   (make-local-variable 'term-ansi-current-bg-color)
1067   (make-local-variable 'term-ansi-current-underline)
1068   (make-local-variable 'term-ansi-current-reverse)
1069   (make-local-variable 'term-ansi-current-invisible)
1070
1071   (make-local-variable 'term-terminal-state)
1072   (make-local-variable 'term-kill-echo-list)
1073   (make-local-variable 'term-start-line-column)
1074   (make-local-variable 'term-current-column)
1075   (make-local-variable 'term-current-row)
1076   (make-local-variable 'term-log-buffer)
1077   (make-local-variable 'term-scroll-start)
1078   (make-local-variable 'term-scroll-end)
1079   (setq term-scroll-end term-height)
1080   (make-local-variable 'term-scroll-with-delete)
1081   (make-local-variable 'term-pager-count)
1082   (make-local-variable 'term-pager-old-local-map)
1083   (make-local-variable 'term-old-mode-map)
1084   (make-local-variable 'term-insert-mode)
1085   (make-local-variable 'term-dynamic-complete-functions)
1086   (make-local-variable 'term-completion-fignore)
1087   (make-local-variable 'term-get-old-input)
1088   (make-local-variable 'term-matching-input-from-input-string)
1089   (make-local-variable 'term-input-autoexpand)
1090   (make-local-variable 'term-input-ignoredups)
1091   (make-local-variable 'term-delimiter-argument-list)
1092   (make-local-variable 'term-input-filter-functions)
1093   (make-local-variable 'term-input-filter)
1094   (make-local-variable 'term-input-sender)
1095   (make-local-variable 'term-eol-on-send)
1096   (make-local-variable 'term-scroll-to-bottom-on-output)
1097   (make-local-variable 'term-scroll-show-maximum-output)
1098   (make-local-variable 'term-ptyp)
1099   (make-local-variable 'term-exec-hook)
1100   (make-local-variable 'term-vertical-motion)
1101   (make-local-variable 'term-pending-delete-marker)
1102   (setq term-pending-delete-marker (make-marker))
1103   (make-local-variable 'term-current-face)
1104   (make-local-variable 'term-pending-frame)
1105   (setq term-pending-frame nil)
1106   ;; Cua-mode's keybindings interfere with the term keybindings, disable it.
1107   (set (make-local-variable 'cua-mode) nil)
1108   (run-mode-hooks 'term-mode-hook)
1109   (term-if-xemacs
1110    (set-buffer-menubar
1111     (append current-menubar (list term-terminal-menu))))
1112   (or term-input-ring
1113       (setq term-input-ring (make-ring term-input-ring-size)))
1114   (term-update-mode-line))
1115 \f
1116 (defun term-reset-size (height width)
1117   (setq term-height height)
1118   (setq term-width width)
1119   (setq term-start-line-column nil)
1120   (setq term-current-row nil)
1121   (setq term-current-column nil)
1122   (term-scroll-region 0 height))
1123
1124 ;; Recursive routine used to check if any string in term-kill-echo-list
1125 ;; matches part of the buffer before point.
1126 ;; If so, delete that matched part of the buffer - this suppresses echo.
1127 ;; Also, remove that string from the term-kill-echo-list.
1128 ;; We *also* remove any older string on the list, as a sanity measure,
1129 ;; in case something gets out of sync.  (Except for type-ahead, there
1130 ;; should only be one element in the list.)
1131
1132 (defun term-check-kill-echo-list ()
1133   (let ((cur term-kill-echo-list) (found nil) (save-point (point)))
1134     (unwind-protect
1135         (progn
1136           (end-of-line)
1137           (while cur
1138             (let* ((str (car cur)) (len (length str)) (start (- (point) len)))
1139               (if (and (>= start (point-min))
1140                        (string= str (buffer-substring start (point))))
1141                   (progn (delete-backward-char len)
1142                          (setq term-kill-echo-list (cdr cur))
1143                          (setq term-current-column nil)
1144                          (setq term-current-row nil)
1145                          (setq term-start-line-column nil)
1146                          (setq cur nil found t))
1147                 (setq cur (cdr cur))))))
1148       (if (not found)
1149           (goto-char save-point)))
1150     found))
1151
1152 (defun term-check-size (process)
1153   (if (or (/= term-height (1- (window-height)))
1154           (/= term-width (term-window-width)))
1155       (progn
1156         (term-reset-size (1- (window-height)) (term-window-width))
1157         (set-process-window-size process term-height term-width))))
1158
1159 (defun term-send-raw-string (chars)
1160   (let ((proc (get-buffer-process (current-buffer))))
1161     (if (not proc)
1162         (error "Current buffer has no process")
1163       ;; Note that (term-current-row) must be called *after*
1164       ;; (point) has been updated to (process-mark proc).
1165       (goto-char (process-mark proc))
1166       (if (term-pager-enabled)
1167           (setq term-pager-count (term-current-row)))
1168       (process-send-string proc chars))))
1169
1170 (defun term-send-raw ()
1171   "Send the last character typed through the terminal-emulator
1172 without any interpretation."
1173   (interactive)
1174  ;; Convert `return' to C-m, etc.
1175   (if (and (symbolp last-input-char)
1176            (get last-input-char 'ascii-character))
1177       (setq last-input-char (get last-input-char 'ascii-character)))
1178   (term-send-raw-string (make-string 1 last-input-char)))
1179
1180 (defun term-send-raw-meta ()
1181   (interactive)
1182   (let ((char last-input-char))
1183     (when (symbolp last-input-char)
1184       ;; Convert `return' to C-m, etc.
1185       (let ((tmp (get char 'event-symbol-elements)))
1186         (when tmp
1187           (setq char (car tmp)))
1188         (when (symbolp char)
1189           (setq tmp (get char 'ascii-character))
1190           (when tmp
1191             (setq char tmp)))))
1192     (setq char (event-basic-type char))
1193     (term-send-raw-string (if (and (numberp char)
1194                                    (> char 127)
1195                                    (< char 256))
1196                               (make-string 1 char)
1197                             (format "\e%c" char)))))
1198
1199 (defun term-mouse-paste (click arg)
1200   "Insert the last stretch of killed text at the position clicked on."
1201   (interactive "e\nP")
1202   (term-if-xemacs
1203    (term-send-raw-string (or (condition-case () (x-get-selection) (error ()))
1204                              (x-get-cutbuffer)
1205                              (error "No selection or cut buffer available"))))
1206   (term-ifnot-xemacs
1207    ;; Give temporary modes such as isearch a chance to turn off.
1208    (run-hooks 'mouse-leave-buffer-hook)
1209    (setq this-command 'yank)
1210    (mouse-set-point click)
1211    (term-send-raw-string (current-kill (cond
1212                                         ((listp arg) 0)
1213                                         ((eq arg '-) -1)
1214                                         (t (1- arg)))))))
1215
1216 (defun term-paste ()
1217   "Insert the last stretch of killed text at point."
1218   (interactive)
1219    (term-send-raw-string (current-kill 0)))
1220
1221 ;; Which would be better:  "\e[A" or "\eOA"? readline accepts either.
1222 ;; For my configuration it's definitely better \eOA but YMMV. -mm
1223 ;; For example: vi works with \eOA while elm wants \e[A ...
1224 ;;; (terminfo: kcuu1, kcud1, kcuf1, kcub1, khome, kend, kpp, knp, kdch1, kbs)
1225 (defun term-send-up    () (interactive) (term-send-raw-string "\eOA"))
1226 (defun term-send-down  () (interactive) (term-send-raw-string "\eOB"))
1227 (defun term-send-right () (interactive) (term-send-raw-string "\eOC"))
1228 (defun term-send-left  () (interactive) (term-send-raw-string "\eOD"))
1229 (defun term-send-home  () (interactive) (term-send-raw-string "\e[1~"))
1230 (defun term-send-end   () (interactive) (term-send-raw-string "\e[4~"))
1231 (defun term-send-prior () (interactive) (term-send-raw-string "\e[5~"))
1232 (defun term-send-next  () (interactive) (term-send-raw-string "\e[6~"))
1233 (defun term-send-del   () (interactive) (term-send-raw-string "\e[3~"))
1234 (defun term-send-backspace  () (interactive) (term-send-raw-string "\C-?"))
1235 \f
1236 (defun term-char-mode ()
1237   "Switch to char (\"raw\") sub-mode of term mode.
1238 Each character you type is sent directly to the inferior without
1239 intervention from Emacs, except for the escape character (usually C-c)."
1240   (interactive)
1241   ;; FIXME: Emit message? Cfr ilisp-raw-message
1242   (if (term-in-line-mode)
1243       (progn
1244         (setq term-old-mode-map (current-local-map))
1245         (use-local-map term-raw-map)
1246
1247         ;; Send existing partial line to inferior (without newline).
1248         (let ((pmark (process-mark (get-buffer-process (current-buffer))))
1249               (save-input-sender term-input-sender))
1250           (if (> (point) pmark)
1251               (unwind-protect
1252                   (progn
1253                     (setq term-input-sender
1254                           (symbol-function 'term-send-string))
1255                     (end-of-line)
1256                     (term-send-input))
1257                 (setq term-input-sender save-input-sender))))
1258         (term-update-mode-line))))
1259
1260 (defun term-line-mode  ()
1261   "Switch to line (\"cooked\") sub-mode of term mode.
1262 This means that Emacs editing commands work as normally, until
1263 you type \\[term-send-input] which sends the current line to the inferior."
1264   (interactive)
1265   (if (term-in-char-mode)
1266       (progn
1267         (use-local-map term-old-mode-map)
1268         (term-update-mode-line))))
1269
1270 (defun term-update-mode-line ()
1271   (setq mode-line-process
1272         (if (term-in-char-mode)
1273             (if (term-pager-enabled) '(": char page %s") '(": char %s"))
1274           (if (term-pager-enabled) '(": line page %s") '(": line %s"))))
1275   (force-mode-line-update))
1276
1277 (defun term-check-proc (buffer)
1278   "True if there is a process associated w/buffer BUFFER, and
1279 it is alive (status RUN or STOP).  BUFFER can be either a buffer or the
1280 name of one."
1281   (let ((proc (get-buffer-process buffer)))
1282     (and proc (memq (process-status proc) '(run stop)))))
1283
1284 ;;;###autoload
1285 (defun make-term (name program &optional startfile &rest switches)
1286 "Make a term process NAME in a buffer, running PROGRAM.
1287 The name of the buffer is made by surrounding NAME with `*'s.
1288 If there is already a running process in that buffer, it is not restarted.
1289 Optional third arg STARTFILE is the name of a file to send the contents of to
1290 the process.  Any more args are arguments to PROGRAM."
1291   (let ((buffer (get-buffer-create (concat "*" name "*"))))
1292     ;; If no process, or nuked process, crank up a new one and put buffer in
1293     ;; term mode.  Otherwise, leave buffer and existing process alone.
1294     (cond ((not (term-check-proc buffer))
1295            (save-excursion
1296              (set-buffer buffer)
1297              (term-mode)) ; Install local vars, mode, keymap, ...
1298            (term-exec buffer name program startfile switches)))
1299     buffer))
1300
1301 ;;;###autoload
1302 (defun term (program)
1303   "Start a terminal-emulator in a new buffer.
1304 The buffer is in Term mode; see `term-mode' for the
1305 commands to use in that buffer.
1306
1307 \\<term-raw-map>Type \\[switch-to-buffer] to switch to another buffer."
1308   (interactive (list (read-from-minibuffer "Run program: "
1309                                            (or explicit-shell-file-name
1310                                                (getenv "ESHELL")
1311                                                (getenv "SHELL")
1312                                                "/bin/sh"))))
1313   (set-buffer (make-term "terminal" program))
1314   (term-mode)
1315   (term-char-mode)
1316   (switch-to-buffer "*terminal*"))
1317
1318 (defun term-exec (buffer name command startfile switches)
1319   "Start up a process in buffer for term modes.
1320 Blasts any old process running in the buffer.  Doesn't set the buffer mode.
1321 You can use this to cheaply run a series of processes in the same term
1322 buffer.  The hook term-exec-hook is run after each exec."
1323   (save-excursion
1324     (set-buffer buffer)
1325     (let ((proc (get-buffer-process buffer)))   ; Blast any old process.
1326       (if proc (delete-process proc)))
1327     ;; Crank up a new process
1328     (let ((proc (term-exec-1 name buffer command switches)))
1329       (make-local-variable 'term-ptyp)
1330       (setq term-ptyp process-connection-type) ; t if pty, nil if pipe.
1331       ;; Jump to the end, and set the process mark.
1332       (goto-char (point-max))
1333       (set-marker (process-mark proc) (point))
1334       (set-process-filter proc 'term-emulate-terminal)
1335       (set-process-sentinel proc 'term-sentinel)
1336       ;; Feed it the startfile.
1337       (cond (startfile
1338              ;;This is guaranteed to wait long enough
1339              ;;but has bad results if the term does not prompt at all
1340              ;;      (while (= size (buffer-size))
1341              ;;        (sleep-for 1))
1342              ;;I hope 1 second is enough!
1343              (sleep-for 1)
1344              (goto-char (point-max))
1345              (insert-file-contents startfile)
1346              (setq startfile (buffer-substring (point) (point-max)))
1347              (delete-region (point) (point-max))
1348              (term-send-string proc startfile)))
1349     (run-hooks 'term-exec-hook)
1350     buffer)))
1351
1352 (defun term-sentinel  (proc msg)
1353   "Sentinel for term buffers.
1354 The main purpose is to get rid of the local keymap."
1355   (let ((buffer (process-buffer proc)))
1356     (if (memq (process-status proc) '(signal exit))
1357         (progn
1358           (if (null (buffer-name buffer))
1359               ;; buffer killed
1360               (set-process-buffer proc nil)
1361             (let ((obuf (current-buffer)))
1362               ;; save-excursion isn't the right thing if
1363               ;; process-buffer is current-buffer
1364               (unwind-protect
1365                   (progn
1366                     ;; Write something in the compilation buffer
1367                     ;; and hack its mode line.
1368                     (set-buffer buffer)
1369                     ;; Get rid of local keymap.
1370                     (use-local-map nil)
1371                     (term-handle-exit (process-name proc)
1372                                       msg)
1373                     ;; Since the buffer and mode line will show that the
1374                     ;; process is dead, we can delete it now.  Otherwise it
1375                     ;; will stay around until M-x list-processes.
1376                     (delete-process proc))
1377                 (set-buffer obuf))))
1378           ))))
1379
1380 (defun term-handle-exit (process-name msg)
1381   "Write process exit (or other change) message MSG in the current buffer."
1382   (let ((buffer-read-only nil)
1383         (omax (point-max))
1384         (opoint (point)))
1385     ;; Record where we put the message, so we can ignore it
1386     ;; later on.
1387     (goto-char omax)
1388     (insert ?\n "Process " process-name " " msg)
1389     ;; Force mode line redisplay soon.
1390     (force-mode-line-update)
1391     (if (and opoint (< opoint omax))
1392         (goto-char opoint))))
1393
1394
1395 ;;; Name to use for TERM.
1396 ;;; Using "emacs" loses, because bash disables editing if TERM == emacs.
1397 (defvar term-term-name "eterm-color")
1398 ; Format string, usage:
1399 ; (format term-termcap-string emacs-term-name "TERMCAP=" 24 80)
1400 (defvar term-termcap-format
1401   "%s%s:li#%d:co#%d:cl=\\E[H\\E[J:cd=\\E[J:bs:am:xn:cm=\\E[%%i%%d;%%dH\
1402 :nd=\\E[C:up=\\E[A:ce=\\E[K:ho=\\E[H:pt\
1403 :al=\\E[L:dl=\\E[M:DL=\\E[%%dM:AL=\\E[%%dL:cs=\\E[%%i%%d;%%dr:sf=^J\
1404 :dc=\\E[P:DC=\\E[%%dP:IC=\\E[%%d@:im=\\E[4h:ei=\\E[4l:mi:\
1405 :so=\\E[7m:se=\\E[m:us=\\E[4m:ue=\\E[m:md=\\E[1m:mr=\\E[7m:me=\\E[m\
1406 :UP=\\E[%%dA:DO=\\E[%%dB:LE=\\E[%%dD:RI=\\E[%%dC\
1407 :kl=\\EOD:kd=\\EOB:kr=\\EOC:ku=\\EOA:kN=\\E[6~:kP=\\E[5~:@7=\\E[4~:kh=\\E[1~\
1408 :mk=\\E[8m:cb=\\E[1K:op=\\E[39;49m:Co#8:pa#64:AB=\\E[4%%dm:AF=\\E[3%%dm:cr=^M\
1409 :bl=^G:do=^J:le=^H:ta=^I:se=\\E[27m:ue=\\E24m\
1410 :kb=^?:kD=^[[3~:sc=\\E7:rc=\\E8:r1=\\Ec:"
1411 ;;; : -undefine ic
1412 ;;; don't define :te=\\E[2J\\E[?47l\\E8:ti=\\E7\\E[?47h\
1413   "termcap capabilities supported")
1414
1415 ;;; This auxiliary function cranks up the process for term-exec in
1416 ;;; the appropriate environment.
1417
1418 (defun term-exec-1 (name buffer command switches)
1419   ;; We need to do an extra (fork-less) exec to run stty.
1420   ;; (This would not be needed if we had suitable Emacs primitives.)
1421   ;; The 'if ...; then shift; fi' hack is because Bourne shell
1422   ;; loses one arg when called with -c, and newer shells (bash,  ksh) don't.
1423   ;; Thus we add an extra dummy argument "..", and then remove it.
1424   (let ((process-environment
1425          (nconc
1426           (list
1427            (format "TERM=%s" term-term-name)
1428            (format "TERMINFO=%s" data-directory)
1429            (format term-termcap-format "TERMCAP="
1430                    term-term-name term-height term-width)
1431            ;; Breaks `./configure' of w3 and url which try to run $EMACS.
1432            (format "EMACS=%s (term:%s)" emacs-version term-protocol-version)
1433            (format "LINES=%d" term-height)
1434            (format "COLUMNS=%d" term-width))
1435           process-environment))
1436         (process-connection-type t)
1437         ;; We should suppress conversion of end-of-line format.
1438         (inhibit-eol-conversion t)
1439         ;; The process's output contains not just chars but also binary
1440         ;; escape codes, so we need to see the raw output.  We will have to
1441         ;; do the decoding by hand on the parts that are made of chars.
1442         (coding-system-for-read 'binary))
1443     (apply 'start-process name buffer
1444            "/bin/sh" "-c"
1445            (format "stty -nl echo rows %d columns %d sane 2>/dev/null;\
1446 if [ $1 = .. ]; then shift; fi; exec \"$@\""
1447                    term-height term-width)
1448            ".."
1449            command switches)))
1450
1451 \f
1452 ;;; Input history processing in a buffer
1453 ;;; ===========================================================================
1454 ;;; Useful input history functions, courtesy of the Ergo group.
1455
1456 ;;; Eleven commands:
1457 ;;; term-dynamic-list-input-ring        List history in help buffer.
1458 ;;; term-previous-input         Previous input...
1459 ;;; term-previous-matching-input        ...matching a string.
1460 ;;; term-previous-matching-input-from-input ... matching the current input.
1461 ;;; term-next-input                     Next input...
1462 ;;; term-next-matching-input            ...matching a string.
1463 ;;; term-next-matching-input-from-input     ... matching the current input.
1464 ;;; term-backward-matching-input      Backwards input...
1465 ;;; term-forward-matching-input       ...matching a string.
1466 ;;; term-replace-by-expanded-history    Expand history at point;
1467 ;;;                                     replace with expanded history.
1468 ;;; term-magic-space                    Expand history and insert space.
1469 ;;;
1470 ;;; Three functions:
1471 ;;; term-read-input-ring              Read into term-input-ring...
1472 ;;; term-write-input-ring             Write to term-input-ring-file-name.
1473 ;;; term-replace-by-expanded-history-before-point Workhorse function.
1474
1475 (defun term-read-input-ring (&optional silent)
1476   "Sets the buffer's `term-input-ring' from a history file.
1477 The name of the file is given by the variable `term-input-ring-file-name'.
1478 The history ring is of size `term-input-ring-size', regardless of file size.
1479 If `term-input-ring-file-name' is nil this function does nothing.
1480
1481 If the optional argument SILENT is non-nil, we say nothing about a
1482 failure to read the history file.
1483
1484 This function is useful for major mode commands and mode hooks.
1485
1486 The structure of the history file should be one input command per line,
1487 with the most recent command last.
1488 See also `term-input-ignoredups' and `term-write-input-ring'."
1489   (cond ((or (null term-input-ring-file-name)
1490              (equal term-input-ring-file-name ""))
1491          nil)
1492         ((not (file-readable-p term-input-ring-file-name))
1493          (or silent
1494              (message "Cannot read history file %s"
1495                       term-input-ring-file-name)))
1496         (t
1497          (let ((history-buf (get-buffer-create " *temp*"))
1498                (file term-input-ring-file-name)
1499                (count 0)
1500                (ring (make-ring term-input-ring-size)))
1501            (unwind-protect
1502                (save-excursion
1503                  (set-buffer history-buf)
1504                  (widen)
1505                  (erase-buffer)
1506                  (insert-file-contents file)
1507                  ;; Save restriction in case file is already visited...
1508                  ;; Watch for those date stamps in history files!
1509                  (goto-char (point-max))
1510                  (while (and (< count term-input-ring-size)
1511                              (re-search-backward "^[ \t]*\\([^#\n].*\\)[ \t]*$"
1512                                                  nil t))
1513                    (let ((history (buffer-substring (match-beginning 1)
1514                                                     (match-end 1))))
1515                      (if (or (null term-input-ignoredups)
1516                              (ring-empty-p ring)
1517                              (not (string-equal (ring-ref ring 0) history)))
1518                          (ring-insert-at-beginning ring history)))
1519                    (setq count (1+ count))))
1520              (kill-buffer history-buf))
1521            (setq term-input-ring ring
1522                  term-input-ring-index nil)))))
1523
1524 (defun term-write-input-ring ()
1525   "Writes the buffer's `term-input-ring' to a history file.
1526 The name of the file is given by the variable `term-input-ring-file-name'.
1527 The original contents of the file are lost if `term-input-ring' is not empty.
1528 If `term-input-ring-file-name' is nil this function does nothing.
1529
1530 Useful within process sentinels.
1531
1532 See also `term-read-input-ring'."
1533   (cond ((or (null term-input-ring-file-name)
1534              (equal term-input-ring-file-name "")
1535              (null term-input-ring) (ring-empty-p term-input-ring))
1536          nil)
1537         ((not (file-writable-p term-input-ring-file-name))
1538          (message "Cannot write history file %s" term-input-ring-file-name))
1539         (t
1540          (let* ((history-buf (get-buffer-create " *Temp Input History*"))
1541                 (ring term-input-ring)
1542                 (file term-input-ring-file-name)
1543                 (index (ring-length ring)))
1544            ;; Write it all out into a buffer first.  Much faster, but messier,
1545            ;; than writing it one line at a time.
1546            (save-excursion
1547              (set-buffer history-buf)
1548              (erase-buffer)
1549              (while (> index 0)
1550                (setq index (1- index))
1551                (insert (ring-ref ring index) ?\n))
1552              (write-region (buffer-string) nil file nil 'no-message)
1553              (kill-buffer nil))))))
1554
1555
1556 (defun term-dynamic-list-input-ring ()
1557   "List in help buffer the buffer's input history."
1558   (interactive)
1559   (if (or (not (ring-p term-input-ring))
1560           (ring-empty-p term-input-ring))
1561       (message "No history")
1562     (let ((history nil)
1563           (history-buffer " *Input History*")
1564           (index (1- (ring-length term-input-ring)))
1565           (conf (current-window-configuration)))
1566       ;; We have to build up a list ourselves from the ring vector.
1567       (while (>= index 0)
1568         (setq history (cons (ring-ref term-input-ring index) history)
1569               index (1- index)))
1570       ;; Change "completion" to "history reference"
1571       ;; to make the display accurate.
1572       (with-output-to-temp-buffer history-buffer
1573         (display-completion-list history)
1574         (set-buffer history-buffer)
1575         (forward-line 3)
1576         (while (search-backward "completion" nil 'move)
1577           (replace-match "history reference")))
1578       (sit-for 0)
1579       (message "Hit space to flush")
1580       (let ((ch (read-event)))
1581         (if (eq ch ?\s)
1582             (set-window-configuration conf)
1583           (setq unread-command-events (list ch)))))))
1584
1585
1586 (defun term-regexp-arg (prompt)
1587   ;; Return list of regexp and prefix arg using PROMPT.
1588   (let* (;; Don't clobber this.
1589          (last-command last-command)
1590          (regexp (read-from-minibuffer prompt nil nil nil
1591                                        'minibuffer-history-search-history)))
1592     (list (if (string-equal regexp "")
1593               (setcar minibuffer-history-search-history
1594                       (nth 1 minibuffer-history-search-history))
1595             regexp)
1596           (prefix-numeric-value current-prefix-arg))))
1597
1598 (defun term-search-arg (arg)
1599   ;; First make sure there is a ring and that we are after the process mark
1600   (cond ((not (term-after-pmark-p))
1601          (error "Not at command line"))
1602         ((or (null term-input-ring)
1603              (ring-empty-p term-input-ring))
1604          (error "Empty input ring"))
1605         ((zerop arg)
1606          ;; arg of zero resets search from beginning, and uses arg of 1
1607          (setq term-input-ring-index nil)
1608          1)
1609         (t
1610          arg)))
1611
1612 (defun term-search-start (arg)
1613   ;; Index to start a directional search, starting at term-input-ring-index
1614   (if term-input-ring-index
1615       ;; If a search is running, offset by 1 in direction of arg
1616       (mod (+ term-input-ring-index (if (> arg 0) 1 -1))
1617            (ring-length term-input-ring))
1618     ;; For a new search, start from beginning or end, as appropriate
1619     (if (>= arg 0)
1620         0                                      ; First elt for forward search
1621       (1- (ring-length term-input-ring)))))  ; Last elt for backward search
1622
1623 (defun term-previous-input-string (arg)
1624   "Return the string ARG places along the input ring.
1625 Moves relative to `term-input-ring-index'."
1626   (ring-ref term-input-ring (if term-input-ring-index
1627                                   (mod (+ arg term-input-ring-index)
1628                                        (ring-length term-input-ring))
1629                                 arg)))
1630
1631 (defun term-previous-input (arg)
1632   "Cycle backwards through input history."
1633   (interactive "*p")
1634   (term-previous-matching-input "." arg))
1635
1636 (defun term-next-input (arg)
1637   "Cycle forwards through input history."
1638   (interactive "*p")
1639   (term-previous-input (- arg)))
1640
1641 (defun term-previous-matching-input-string (regexp arg)
1642   "Return the string matching REGEXP ARG places along the input ring.
1643 Moves relative to `term-input-ring-index'."
1644   (let* ((pos (term-previous-matching-input-string-position regexp arg)))
1645     (if pos (ring-ref term-input-ring pos))))
1646
1647 (defun term-previous-matching-input-string-position
1648   (regexp arg &optional start)
1649   "Return the index matching REGEXP ARG places along the input ring.
1650 Moves relative to START, or `term-input-ring-index'."
1651   (if (or (not (ring-p term-input-ring))
1652           (ring-empty-p term-input-ring))
1653       (error "No history"))
1654   (let* ((len (ring-length term-input-ring))
1655          (motion (if (> arg 0) 1 -1))
1656          (n (mod (- (or start (term-search-start arg)) motion) len))
1657          (tried-each-ring-item nil)
1658          (prev nil))
1659     ;; Do the whole search as many times as the argument says.
1660     (while (and (/= arg 0) (not tried-each-ring-item))
1661       ;; Step once.
1662       (setq prev n
1663             n (mod (+ n motion) len))
1664       ;; If we haven't reached a match, step some more.
1665       (while (and (< n len) (not tried-each-ring-item)
1666                   (not (string-match regexp (ring-ref term-input-ring n))))
1667         (setq n (mod (+ n motion) len)
1668               ;; If we have gone all the way around in this search.
1669               tried-each-ring-item (= n prev)))
1670       (setq arg (if (> arg 0) (1- arg) (1+ arg))))
1671     ;; Now that we know which ring element to use, if we found it, return that.
1672     (if (string-match regexp (ring-ref term-input-ring n))
1673         n)))
1674
1675 (defun term-previous-matching-input (regexp arg)
1676   "Search backwards through input history for match for REGEXP.
1677 \(Previous history elements are earlier commands.)
1678 With prefix argument N, search for Nth previous match.
1679 If N is negative, find the next or Nth next match."
1680   (interactive (term-regexp-arg "Previous input matching (regexp): "))
1681   (setq arg (term-search-arg arg))
1682   (let ((pos (term-previous-matching-input-string-position regexp arg)))
1683     ;; Has a match been found?
1684     (if (null pos)
1685         (error "Not found")
1686       (setq term-input-ring-index pos)
1687       (message "History item: %d" (1+ pos))
1688       (delete-region
1689        ;; Can't use kill-region as it sets this-command
1690        (process-mark (get-buffer-process (current-buffer))) (point))
1691       (insert (ring-ref term-input-ring pos)))))
1692
1693 (defun term-next-matching-input (regexp arg)
1694   "Search forwards through input history for match for REGEXP.
1695 \(Later history elements are more recent commands.)
1696 With prefix argument N, search for Nth following match.
1697 If N is negative, find the previous or Nth previous match."
1698   (interactive (term-regexp-arg "Next input matching (regexp): "))
1699   (term-previous-matching-input regexp (- arg)))
1700
1701 (defun term-previous-matching-input-from-input (arg)
1702   "Search backwards through input history for match for current input.
1703 \(Previous history elements are earlier commands.)
1704 With prefix argument N, search for Nth previous match.
1705 If N is negative, search forwards for the -Nth following match."
1706   (interactive "p")
1707   (if (not (memq last-command '(term-previous-matching-input-from-input
1708                                 term-next-matching-input-from-input)))
1709       ;; Starting a new search
1710       (setq term-matching-input-from-input-string
1711             (buffer-substring
1712              (process-mark (get-buffer-process (current-buffer)))
1713              (point))
1714             term-input-ring-index nil))
1715   (term-previous-matching-input
1716    (concat "^" (regexp-quote term-matching-input-from-input-string))
1717    arg))
1718
1719 (defun term-next-matching-input-from-input (arg)
1720   "Search forwards through input history for match for current input.
1721 \(Following history elements are more recent commands.)
1722 With prefix argument N, search for Nth following match.
1723 If N is negative, search backwards for the -Nth previous match."
1724   (interactive "p")
1725   (term-previous-matching-input-from-input (- arg)))
1726
1727
1728 (defun term-replace-by-expanded-history (&optional silent)
1729   "Expand input command history references before point.
1730 Expansion is dependent on the value of `term-input-autoexpand'.
1731
1732 This function depends on the buffer's idea of the input history, which may not
1733 match the command interpreter's idea, assuming it has one.
1734
1735 Assumes history syntax is like typical Un*x shells'.  However, since Emacs
1736 cannot know the interpreter's idea of input line numbers, assuming it has one,
1737 it cannot expand absolute input line number references.
1738
1739 If the optional argument SILENT is non-nil, never complain
1740 even if history reference seems erroneous.
1741
1742 See `term-magic-space' and `term-replace-by-expanded-history-before-point'.
1743
1744 Returns t if successful."
1745   (interactive)
1746   (if (and term-input-autoexpand
1747            (string-match "[!^]" (funcall term-get-old-input))
1748            (save-excursion (beginning-of-line)
1749                            (looking-at term-prompt-regexp)))
1750       ;; Looks like there might be history references in the command.
1751       (let ((previous-modified-tick (buffer-modified-tick)))
1752         (message "Expanding history references...")
1753         (term-replace-by-expanded-history-before-point silent)
1754         (/= previous-modified-tick (buffer-modified-tick)))))
1755
1756
1757 (defun term-replace-by-expanded-history-before-point (silent)
1758   "Expand directory stack reference before point.
1759 See `term-replace-by-expanded-history'.  Returns t if successful."
1760   (save-excursion
1761     (let ((toend (- (save-excursion (end-of-line nil) (point)) (point)))
1762           (start (progn (term-bol nil) (point))))
1763       (while (progn
1764                (skip-chars-forward "^!^"
1765                                    (save-excursion
1766                                      (end-of-line nil) (- (point) toend)))
1767                (< (point)
1768                   (save-excursion
1769                     (end-of-line nil) (- (point) toend))))
1770         ;; This seems a bit complex.  We look for references such as !!, !-num,
1771         ;; !foo, !?foo, !{bar}, !?{bar}, ^oh, ^my^, ^god^it, ^never^ends^.
1772         ;; If that wasn't enough, the plings can be suffixed with argument
1773         ;; range specifiers.
1774         ;; Argument ranges are complex too, so we hive off the input line,
1775         ;; referenced with plings, with the range string to `term-args'.
1776         (setq term-input-ring-index nil)
1777         (cond ((or (= (preceding-char) ?\\)
1778                    (term-within-quotes start (point)))
1779                ;; The history is quoted, or we're in quotes.
1780                (goto-char (1+ (point))))
1781               ((looking-at "![0-9]+\\($\\|[^-]\\)")
1782                ;; We cannot know the interpreter's idea of input line numbers.
1783                (goto-char (match-end 0))
1784                (message "Absolute reference cannot be expanded"))
1785               ((looking-at "!-\\([0-9]+\\)\\(:?[0-9^$*-]+\\)?")
1786                ;; Just a number of args from `number' lines backward.
1787                (let ((number (1- (string-to-number
1788                                   (buffer-substring (match-beginning 1)
1789                                                     (match-end 1))))))
1790                  (if (<= number (ring-length term-input-ring))
1791                      (progn
1792                        (replace-match
1793                         (term-args (term-previous-input-string number)
1794                                      (match-beginning 2) (match-end 2))
1795                         t t)
1796                        (setq term-input-ring-index number)
1797                        (message "History item: %d" (1+ number)))
1798                    (goto-char (match-end 0))
1799                    (message "Relative reference exceeds input history size"))))
1800               ((or (looking-at "!!?:?\\([0-9^$*-]+\\)") (looking-at "!!"))
1801                ;; Just a number of args from the previous input line.
1802                (replace-match
1803                 (term-args (term-previous-input-string 0)
1804                              (match-beginning 1) (match-end 1))
1805                 t t)
1806                (message "History item: previous"))
1807               ((looking-at
1808                 "!\\??\\({\\(.+\\)}\\|\\(\\sw+\\)\\)\\(:?[0-9^$*-]+\\)?")
1809                ;; Most recent input starting with or containing (possibly
1810                ;; protected) string, maybe just a number of args.  Phew.
1811                (let* ((mb1 (match-beginning 1)) (me1 (match-end 1))
1812                       (mb2 (match-beginning 2)) (me2 (match-end 2))
1813                       (exp (buffer-substring (or mb2 mb1) (or me2 me1)))
1814                       (pref (if (save-match-data (looking-at "!\\?")) "" "^"))
1815                       (pos (save-match-data
1816                              (term-previous-matching-input-string-position
1817                               (concat pref (regexp-quote exp)) 1))))
1818                  (if (null pos)
1819                      (progn
1820                        (goto-char (match-end 0))
1821                        (or silent
1822                            (progn (message "Not found")
1823                                   (ding))))
1824                    (setq term-input-ring-index pos)
1825                    (replace-match
1826                     (term-args (ring-ref term-input-ring pos)
1827                                  (match-beginning 4) (match-end 4))
1828                     t t)
1829                    (message "History item: %d" (1+ pos)))))
1830               ((looking-at "\\^\\([^^]+\\)\\^?\\([^^]*\\)\\^?")
1831                ;; Quick substitution on the previous input line.
1832                (let ((old (buffer-substring (match-beginning 1) (match-end 1)))
1833                      (new (buffer-substring (match-beginning 2) (match-end 2)))
1834                      (pos nil))
1835                  (replace-match (term-previous-input-string 0) t t)
1836                  (setq pos (point))
1837                  (goto-char (match-beginning 0))
1838                  (if (not (search-forward old pos t))
1839                      (or silent
1840                          (error "Not found"))
1841                    (replace-match new t t)
1842                    (message "History item: substituted"))))
1843               (t
1844                (goto-char (match-end 0))))))))
1845
1846
1847 (defun term-magic-space (arg)
1848   "Expand input history references before point and insert ARG spaces.
1849 A useful command to bind to SPC.  See `term-replace-by-expanded-history'."
1850   (interactive "p")
1851   (term-replace-by-expanded-history)
1852   (self-insert-command arg))
1853 \f
1854 (defun term-within-quotes (beg end)
1855   "Return t if the number of quotes between BEG and END is odd.
1856 Quotes are single and double."
1857   (let ((countsq (term-how-many-region "\\(^\\|[^\\\\]\\)\'" beg end))
1858         (countdq (term-how-many-region "\\(^\\|[^\\\\]\\)\"" beg end)))
1859     (or (= (mod countsq 2) 1) (= (mod countdq 2) 1))))
1860
1861 (defun term-how-many-region (regexp beg end)
1862   "Return number of matches for REGEXP from BEG to END."
1863   (let ((count 0))
1864     (save-excursion
1865       (save-match-data
1866         (goto-char beg)
1867         (while (re-search-forward regexp end t)
1868           (setq count (1+ count)))))
1869     count))
1870
1871 (defun term-args (string begin end)
1872   ;; From STRING, return the args depending on the range specified in the text
1873   ;; from BEGIN to END.  If BEGIN is nil, assume all args.  Ignore leading `:'.
1874   ;; Range can be x-y, x-, -y, where x/y can be [0-9], *, ^, $.
1875   (save-match-data
1876     (if (null begin)
1877         (term-arguments string 0 nil)
1878       (let* ((range (buffer-substring
1879                      (if (eq (char-after begin) ?:) (1+ begin) begin) end))
1880              (nth (cond ((string-match "^[*^]" range) 1)
1881                         ((string-match "^-" range) 0)
1882                         ((string-equal range "$") nil)
1883                         (t (string-to-number range))))
1884              (mth (cond ((string-match "[-*$]$" range) nil)
1885                         ((string-match "-" range)
1886                          (string-to-number (substring range (match-end 0))))
1887                         (t nth))))
1888         (term-arguments string nth mth)))))
1889
1890 ;; Return a list of arguments from ARG.  Break it up at the
1891 ;; delimiters in term-delimiter-argument-list.  Returned list is backwards.
1892 (defun term-delim-arg (arg)
1893   (if (null term-delimiter-argument-list)
1894       (list arg)
1895     (let ((args nil)
1896           (pos 0)
1897           (len (length arg)))
1898       (while (< pos len)
1899         (let ((char (aref arg pos))
1900               (start pos))
1901           (if (memq char term-delimiter-argument-list)
1902               (while (and (< pos len) (eq (aref arg pos) char))
1903                 (setq pos (1+ pos)))
1904             (while (and (< pos len)
1905                         (not (memq (aref arg pos)
1906                                    term-delimiter-argument-list)))
1907               (setq pos (1+ pos))))
1908           (setq args (cons (substring arg start pos) args))))
1909       args)))
1910
1911 (defun term-arguments (string nth mth)
1912   "Return from STRING the NTH to MTH arguments.
1913 NTH and/or MTH can be nil, which means the last argument.
1914 Returned arguments are separated by single spaces.
1915 We assume whitespace separates arguments, except within quotes.
1916 Also, a run of one or more of a single character
1917 in `term-delimiter-argument-list' is a separate argument.
1918 Argument 0 is the command name."
1919   (let ((argpart "[^ \n\t\"'`]+\\|\\(\"[^\"]*\"\\|'[^']*'\\|`[^`]*`\\)")
1920         (args ()) (pos 0)
1921         (count 0)
1922         beg str quotes)
1923     ;; Build a list of all the args until we have as many as we want.
1924     (while (and (or (null mth) (<= count mth))
1925                 (string-match argpart string pos))
1926       (if (and beg (= pos (match-beginning 0)))
1927           ;; It's contiguous, part of the same arg.
1928           (setq pos (match-end 0)
1929                 quotes (or quotes (match-beginning 1)))
1930         ;; It's a new separate arg.
1931         (if beg
1932             ;; Put the previous arg, if there was one, onto ARGS.
1933             (setq str (substring string beg pos)
1934                   args (if quotes (cons str args)
1935                          (nconc (term-delim-arg str) args))
1936                   count (1+ count)))
1937         (setq quotes (match-beginning 1))
1938         (setq beg (match-beginning 0))
1939         (setq pos (match-end 0))))
1940     (if beg
1941         (setq str (substring string beg pos)
1942               args (if quotes (cons str args)
1943                      (nconc (term-delim-arg str) args))
1944               count (1+ count)))
1945     (let ((n (or nth (1- count)))
1946           (m (if mth (1- (- count mth)) 0)))
1947       (mapconcat
1948        (function (lambda (a) a)) (nthcdr n (nreverse (nthcdr m args))) " "))))
1949 \f
1950 ;;;
1951 ;;; Input processing stuff [line mode]
1952 ;;;
1953
1954 (defun term-send-input ()
1955   "Send input to process.
1956 After the process output mark, sends all text from the process mark to
1957 point as input to the process.  Before the process output mark, calls value
1958 of variable term-get-old-input to retrieve old input, copies it to the
1959 process mark, and sends it.  A terminal newline is also inserted into the
1960 buffer and sent to the process.  The list of function names contained in the
1961 value of `term-input-filter-functions' is called on the input before sending
1962 it.  The input is entered into the input history ring, if the value of variable
1963 term-input-filter returns non-nil when called on the input.
1964
1965 Any history reference may be expanded depending on the value of the variable
1966 `term-input-autoexpand'.  The list of function names contained in the value
1967 of `term-input-filter-functions' is called on the input before sending it.
1968 The input is entered into the input history ring, if the value of variable
1969 `term-input-filter' returns non-nil when called on the input.
1970
1971 If variable `term-eol-on-send' is non-nil, then point is moved to the
1972 end of line before sending the input.
1973
1974 The values of `term-get-old-input', `term-input-filter-functions', and
1975 `term-input-filter' are chosen according to the command interpreter running
1976 in the buffer.  E.g.,
1977
1978 If the interpreter is the csh,
1979     term-get-old-input is the default: take the current line, discard any
1980         initial string matching regexp term-prompt-regexp.
1981     term-input-filter-functions monitors input for \"cd\", \"pushd\", and
1982         \"popd\" commands.  When it sees one, it cd's the buffer.
1983     term-input-filter is the default: returns t if the input isn't all white
1984         space.
1985
1986 If the term is Lucid Common Lisp,
1987     term-get-old-input snarfs the sexp ending at point.
1988     term-input-filter-functions does nothing.
1989     term-input-filter returns nil if the input matches input-filter-regexp,
1990         which matches (1) all whitespace (2) :a, :c, etc.
1991
1992 Similarly for Soar, Scheme, etc."
1993   (interactive)
1994   ;; Note that the input string does not include its terminal newline.
1995   (let ((proc (get-buffer-process (current-buffer))))
1996     (if (not proc) (error "Current buffer has no process")
1997       (let* ((pmark (process-mark proc))
1998              (pmark-val (marker-position pmark))
1999              (input-is-new (>= (point) pmark-val))
2000              (intxt (if input-is-new
2001                         (progn (if term-eol-on-send (end-of-line))
2002                                (buffer-substring pmark (point)))
2003                       (funcall term-get-old-input)))
2004              (input (if (not (eq term-input-autoexpand 'input))
2005                         ;; Just whatever's already there
2006                         intxt
2007                       ;; Expand and leave it visible in buffer
2008                       (term-replace-by-expanded-history t)
2009                       (buffer-substring pmark (point))))
2010              (history (if (not (eq term-input-autoexpand 'history))
2011                           input
2012                         ;; This is messy 'cos ultimately the original
2013                         ;; functions used do insertion, rather than return
2014                         ;; strings.  We have to expand, then insert back.
2015                         (term-replace-by-expanded-history t)
2016                         (let ((copy (buffer-substring pmark (point))))
2017                           (delete-region pmark (point))
2018                           (insert input)
2019                           copy))))
2020         (if (term-pager-enabled)
2021             (save-excursion
2022               (goto-char (process-mark proc))
2023               (setq term-pager-count (term-current-row))))
2024         (if (and (funcall term-input-filter history)
2025                  (or (null term-input-ignoredups)
2026                      (not (ring-p term-input-ring))
2027                      (ring-empty-p term-input-ring)
2028                      (not (string-equal (ring-ref term-input-ring 0)
2029                                         history))))
2030             (ring-insert term-input-ring history))
2031         (let ((functions term-input-filter-functions))
2032           (while functions
2033             (funcall (car functions) (concat input "\n"))
2034             (setq functions (cdr functions))))
2035         (setq term-input-ring-index nil)
2036
2037         ;; Update the markers before we send the input
2038         ;; in case we get output amidst sending the input.
2039         (set-marker term-last-input-start pmark)
2040         (set-marker term-last-input-end (point))
2041         (if input-is-new
2042             (progn
2043               ;; Set up to delete, because inferior should echo.
2044               (if (marker-buffer term-pending-delete-marker)
2045                   (delete-region term-pending-delete-marker pmark))
2046               (set-marker term-pending-delete-marker pmark-val)
2047               (set-marker (process-mark proc) (point))))
2048         (goto-char pmark)
2049         (funcall term-input-sender proc input)))))
2050
2051 (defun term-get-old-input-default ()
2052   "Default for term-get-old-input.
2053 Take the current line, and discard any initial text matching
2054 term-prompt-regexp."
2055   (save-excursion
2056     (beginning-of-line)
2057     (term-skip-prompt)
2058     (let ((beg (point)))
2059       (end-of-line)
2060       (buffer-substring beg (point)))))
2061
2062 (defun term-copy-old-input ()
2063   "Insert after prompt old input at point as new input to be edited.
2064 Calls `term-get-old-input' to get old input."
2065   (interactive)
2066   (let ((input (funcall term-get-old-input))
2067         (process (get-buffer-process (current-buffer))))
2068     (if (not process)
2069         (error "Current buffer has no process")
2070       (goto-char (process-mark process))
2071       (insert input))))
2072
2073 (defun term-skip-prompt ()
2074   "Skip past the text matching regexp term-prompt-regexp.
2075 If this takes us past the end of the current line, don't skip at all."
2076   (let ((eol (save-excursion (end-of-line) (point))))
2077     (if (and (looking-at term-prompt-regexp)
2078              (<= (match-end 0) eol))
2079         (goto-char (match-end 0)))))
2080
2081
2082 (defun term-after-pmark-p ()
2083   "Is point after the process output marker?"
2084   ;; Since output could come into the buffer after we looked at the point
2085   ;; but before we looked at the process marker's value, we explicitly
2086   ;; serialise.  This is just because I don't know whether or not Emacs
2087   ;; services input during execution of lisp commands.
2088   (let ((proc-pos (marker-position
2089                    (process-mark (get-buffer-process (current-buffer))))))
2090     (<= proc-pos (point))))
2091
2092 (defun term-simple-send (proc string)
2093   "Default function for sending to PROC input STRING.
2094 This just sends STRING plus a newline.  To override this,
2095 set the hook `term-input-sender'."
2096   (term-send-string proc string)
2097   (term-send-string proc "\n"))
2098
2099 (defun term-bol (arg)
2100   "Goes to the beginning of line, then skips past the prompt, if any.
2101 If a prefix argument is given (\\[universal-argument]), then no prompt skip
2102 -- go straight to column 0.
2103
2104 The prompt skip is done by skipping text matching the regular expression
2105 term-prompt-regexp, a buffer local variable."
2106   (interactive "P")
2107   (beginning-of-line)
2108   (if (null arg) (term-skip-prompt)))
2109
2110 ;;; These two functions are for entering text you don't want echoed or
2111 ;;; saved -- typically passwords to ftp, telnet, or somesuch.
2112 ;;; Just enter m-x term-send-invisible and type in your line.
2113
2114 (defun term-read-noecho (prompt &optional stars)
2115   "Read a single line of text from user without echoing, and return it.
2116 Prompt with argument PROMPT, a string.  Optional argument STARS causes
2117 input to be echoed with '*' characters on the prompt line.  Input ends with
2118 RET, LFD, or ESC.  DEL or C-h rubs out.  C-u kills line.  C-g aborts (if
2119 `inhibit-quit' is set because e.g. this function was called from a process
2120 filter and C-g is pressed, this function returns nil rather than a string).
2121
2122 Note that the keystrokes comprising the text can still be recovered
2123 \(temporarily) with \\[view-lossage].  This may be a security bug for some
2124 applications."
2125   (let ((ans "")
2126         (c 0)
2127         (echo-keystrokes 0)
2128         (cursor-in-echo-area t)
2129         (done nil))
2130     (while (not done)
2131       (if stars
2132           (message "%s%s" prompt (make-string (length ans) ?*))
2133         (message "%s" prompt))
2134       (setq c (read-char))
2135       (cond ((= c ?\C-g)
2136              ;; This function may get called from a process filter, where
2137              ;; inhibit-quit is set.  In later versions of Emacs read-char
2138              ;; may clear quit-flag itself and return C-g.  That would make
2139              ;; it impossible to quit this loop in a simple way, so
2140              ;; re-enable it here (for backward-compatibility the check for
2141              ;; quit-flag below would still be necessary, so this seems
2142              ;; like the simplest way to do things).
2143              (setq quit-flag t
2144                    done t))
2145             ((or (= c ?\r) (= c ?\n) (= c ?\e))
2146              (setq done t))
2147             ((= c ?\C-u)
2148              (setq ans ""))
2149             ((and (/= c ?\b) (/= c ?\177))
2150              (setq ans (concat ans (char-to-string c))))
2151             ((> (length ans) 0)
2152              (setq ans (substring ans 0 -1)))))
2153     (if quit-flag
2154         ;; Emulate a true quit, except that we have to return a value.
2155         (prog1
2156             (setq quit-flag nil)
2157           (message "Quit")
2158           (beep t))
2159       (message "")
2160       ans)))
2161
2162 (defun term-send-invisible (str &optional proc)
2163   "Read a string without echoing.
2164 Then send it to the process running in the current buffer.  A new-line
2165 is additionally sent.  String is not saved on term input history list.
2166 Security bug: your string can still be temporarily recovered with
2167 \\[view-lossage]."
2168   (interactive "P") ; Defeat snooping via C-x esc
2169   (if (not (stringp str))
2170       (setq str (term-read-noecho "Non-echoed text: " t)))
2171   (if (not proc)
2172       (setq proc (get-buffer-process (current-buffer))))
2173   (if (not proc) (error "Current buffer has no process")
2174     (setq term-kill-echo-list (nconc term-kill-echo-list
2175                                      (cons str nil)))
2176     (term-send-string proc str)
2177     (term-send-string proc "\n")))
2178
2179 \f
2180 ;;; Low-level process communication
2181
2182 (defvar term-input-chunk-size 512
2183   "*Long inputs send to term processes are broken up into chunks of this size.
2184 If your process is choking on big inputs, try lowering the value.")
2185
2186 (defun term-send-string (proc str)
2187   "Send to PROC the contents of STR as input.
2188 This is equivalent to process-send-string, except that long input strings
2189 are broken up into chunks of size term-input-chunk-size.  Processes
2190 are given a chance to output between chunks.  This can help prevent processes
2191 from hanging when you send them long inputs on some OS's."
2192   (let* ((len (length str))
2193          (i (min len term-input-chunk-size)))
2194     (process-send-string proc (substring str 0 i))
2195     (while (< i len)
2196       (let ((next-i (+ i term-input-chunk-size)))
2197         (accept-process-output)
2198         (process-send-string proc (substring str i (min len next-i)))
2199         (setq i next-i)))))
2200
2201 (defun term-send-region (proc start end)
2202   "Send to PROC the region delimited by START and END.
2203 This is a replacement for process-send-region that tries to keep
2204 your process from hanging on long inputs.  See `term-send-string'."
2205   (term-send-string proc (buffer-substring start end)))
2206
2207 \f
2208 ;;; Random input hackage
2209
2210 (defun term-kill-output ()
2211   "Kill all output from interpreter since last input."
2212   (interactive)
2213   (let ((pmark (process-mark (get-buffer-process (current-buffer)))))
2214     (kill-region term-last-input-end pmark)
2215     (goto-char pmark)
2216     (insert "*** output flushed ***\n")
2217     (set-marker pmark (point))))
2218
2219 (defun term-show-output ()
2220   "Display start of this batch of interpreter output at top of window.
2221 Sets mark to the value of point when this command is run."
2222   (interactive)
2223   (goto-char term-last-input-end)
2224   (backward-char)
2225   (beginning-of-line)
2226   (set-window-start (selected-window) (point))
2227   (end-of-line))
2228
2229 (defun term-interrupt-subjob ()
2230   "Interrupt the current subjob."
2231   (interactive)
2232   (interrupt-process nil term-ptyp))
2233
2234 (defun term-kill-subjob ()
2235   "Send kill signal to the current subjob."
2236   (interactive)
2237   (kill-process nil term-ptyp))
2238
2239 (defun term-quit-subjob ()
2240   "Send quit signal to the current subjob."
2241   (interactive)
2242   (quit-process nil term-ptyp))
2243
2244 (defun term-stop-subjob ()
2245   "Stop the current subjob.
2246 WARNING: if there is no current subjob, you can end up suspending
2247 the top-level process running in the buffer.  If you accidentally do
2248 this, use \\[term-continue-subjob] to resume the process.  (This
2249 is not a problem with most shells, since they ignore this signal.)"
2250   (interactive)
2251   (stop-process nil term-ptyp))
2252
2253 (defun term-continue-subjob ()
2254   "Send CONT signal to process buffer's process group.
2255 Useful if you accidentally suspend the top-level process."
2256   (interactive)
2257   (continue-process nil term-ptyp))
2258
2259 (defun term-kill-input ()
2260   "Kill all text from last stuff output by interpreter to point."
2261   (interactive)
2262   (let* ((pmark (process-mark (get-buffer-process (current-buffer))))
2263          (p-pos (marker-position pmark)))
2264     (if (> (point) p-pos)
2265         (kill-region pmark (point)))))
2266
2267 (defun term-delchar-or-maybe-eof (arg)
2268   "Delete ARG characters forward, or send an EOF to process if at end of
2269 buffer."
2270   (interactive "p")
2271   (if (eobp)
2272       (process-send-eof)
2273       (delete-char arg)))
2274
2275 (defun term-send-eof ()
2276   "Send an EOF to the current buffer's process."
2277   (interactive)
2278   (process-send-eof))
2279
2280 (defun term-backward-matching-input (regexp arg)
2281   "Search backward through buffer for match for REGEXP.
2282 Matches are searched for on lines that match `term-prompt-regexp'.
2283 With prefix argument N, search for Nth previous match.
2284 If N is negative, find the next or Nth next match."
2285   (interactive (term-regexp-arg "Backward input matching (regexp): "))
2286   (let* ((re (concat term-prompt-regexp ".*" regexp))
2287          (pos (save-excursion (end-of-line (if (> arg 0) 0 1))
2288                               (if (re-search-backward re nil t arg)
2289                                   (point)))))
2290     (if (null pos)
2291         (progn (message "Not found")
2292                (ding))
2293       (goto-char pos)
2294       (term-bol nil))))
2295
2296 (defun term-forward-matching-input (regexp arg)
2297   "Search forward through buffer for match for REGEXP.
2298 Matches are searched for on lines that match `term-prompt-regexp'.
2299 With prefix argument N, search for Nth following match.
2300 If N is negative, find the previous or Nth previous match."
2301   (interactive (term-regexp-arg "Forward input matching (regexp): "))
2302   (term-backward-matching-input regexp (- arg)))
2303
2304
2305 (defun term-next-prompt (n)
2306   "Move to end of Nth next prompt in the buffer.
2307 See `term-prompt-regexp'."
2308   (interactive "p")
2309   (let ((paragraph-start term-prompt-regexp))
2310     (end-of-line (if (> n 0) 1 0))
2311     (forward-paragraph n)
2312     (term-skip-prompt)))
2313
2314 (defun term-previous-prompt (n)
2315   "Move to end of Nth previous prompt in the buffer.
2316 See `term-prompt-regexp'."
2317   (interactive "p")
2318   (term-next-prompt (- n)))
2319 \f
2320 ;;; Support for source-file processing commands.
2321 ;;;============================================================================
2322 ;;; Many command-interpreters (e.g., Lisp, Scheme, Soar) have
2323 ;;; commands that process files of source text (e.g. loading or compiling
2324 ;;; files).  So the corresponding process-in-a-buffer modes have commands
2325 ;;; for doing this (e.g., lisp-load-file).  The functions below are useful
2326 ;;; for defining these commands.
2327 ;;;
2328 ;;; Alas, these guys don't do exactly the right thing for Lisp, Scheme
2329 ;;; and Soar, in that they don't know anything about file extensions.
2330 ;;; So the compile/load interface gets the wrong default occasionally.
2331 ;;; The load-file/compile-file default mechanism could be smarter -- it
2332 ;;; doesn't know about the relationship between filename extensions and
2333 ;;; whether the file is source or executable.  If you compile foo.lisp
2334 ;;; with compile-file, then the next load-file should use foo.bin for
2335 ;;; the default, not foo.lisp.  This is tricky to do right, particularly
2336 ;;; because the extension for executable files varies so much (.o, .bin,
2337 ;;; .lbin, .mo, .vo, .ao, ...).
2338
2339
2340 ;;; TERM-SOURCE-DEFAULT -- determines defaults for source-file processing
2341 ;;; commands.
2342 ;;;
2343 ;;; TERM-CHECK-SOURCE -- if FNAME is in a modified buffer, asks you if you
2344 ;;; want to save the buffer before issuing any process requests to the command
2345 ;;; interpreter.
2346 ;;;
2347 ;;; TERM-GET-SOURCE -- used by the source-file processing commands to prompt
2348 ;;; for the file to process.
2349
2350 ;;; (TERM-SOURCE-DEFAULT previous-dir/file source-modes)
2351 ;;;============================================================================
2352 ;;; This function computes the defaults for the load-file and compile-file
2353 ;;; commands for tea, soar, cmulisp, and cmuscheme modes.
2354 ;;;
2355 ;;; - PREVIOUS-DIR/FILE is a pair (directory . filename) from the last
2356 ;;; source-file processing command, or nil if there hasn't been one yet.
2357 ;;; - SOURCE-MODES is a list used to determine what buffers contain source
2358 ;;; files: if the major mode of the buffer is in SOURCE-MODES, it's source.
2359 ;;; Typically, (lisp-mode) or (scheme-mode).
2360 ;;;
2361 ;;; If the command is given while the cursor is inside a string, *and*
2362 ;;; the string is an existing filename, *and* the filename is not a directory,
2363 ;;; then the string is taken as default.  This allows you to just position
2364 ;;; your cursor over a string that's a filename and have it taken as default.
2365 ;;;
2366 ;;; If the command is given in a file buffer whose major mode is in
2367 ;;; SOURCE-MODES, then the filename is the default file, and the
2368 ;;; file's directory is the default directory.
2369 ;;;
2370 ;;; If the buffer isn't a source file buffer (e.g., it's the process buffer),
2371 ;;; then the default directory & file are what was used in the last source-file
2372 ;;; processing command (i.e., PREVIOUS-DIR/FILE).  If this is the first time
2373 ;;; the command has been run (PREVIOUS-DIR/FILE is nil), the default directory
2374 ;;; is the cwd, with no default file.  (\"no default file\" = nil)
2375 ;;;
2376 ;;; SOURCE-REGEXP is typically going to be something like (tea-mode)
2377 ;;; for T programs, (lisp-mode) for Lisp programs, (soar-mode lisp-mode)
2378 ;;; for Soar programs, etc.
2379 ;;;
2380 ;;; The function returns a pair: (default-directory . default-file).
2381
2382 (defun term-source-default (previous-dir/file source-modes)
2383   (cond ((and buffer-file-name (memq major-mode source-modes))
2384          (cons (file-name-directory    buffer-file-name)
2385                (file-name-nondirectory buffer-file-name)))
2386         (previous-dir/file)
2387         (t
2388          (cons default-directory nil))))
2389
2390
2391 ;;; (TERM-CHECK-SOURCE fname)
2392 ;;;============================================================================
2393 ;;; Prior to loading or compiling (or otherwise processing) a file (in the CMU
2394 ;;; process-in-a-buffer modes), this function can be called on the filename.
2395 ;;; If the file is loaded into a buffer, and the buffer is modified, the user
2396 ;;; is queried to see if he wants to save the buffer before proceeding with
2397 ;;; the load or compile.
2398
2399 (defun term-check-source (fname)
2400   (let ((buff (get-file-buffer fname)))
2401     (if (and buff
2402              (buffer-modified-p buff)
2403              (y-or-n-p (format "Save buffer %s first? "
2404                                (buffer-name buff))))
2405         ;; save BUFF.
2406         (let ((old-buffer (current-buffer)))
2407           (set-buffer buff)
2408           (save-buffer)
2409           (set-buffer old-buffer)))))
2410
2411
2412 ;;; (TERM-GET-SOURCE prompt prev-dir/file source-modes mustmatch-p)
2413 ;;;============================================================================
2414 ;;; TERM-GET-SOURCE is used to prompt for filenames in command-interpreter
2415 ;;; commands that process source files (like loading or compiling a file).
2416 ;;; It prompts for the filename, provides a default, if there is one,
2417 ;;; and returns the result filename.
2418 ;;;
2419 ;;; See TERM-SOURCE-DEFAULT for more on determining defaults.
2420 ;;;
2421 ;;; PROMPT is the prompt string.  PREV-DIR/FILE is the (directory . file) pair
2422 ;;; from the last source processing command.  SOURCE-MODES is a list of major
2423 ;;; modes used to determine what file buffers contain source files.  (These
2424 ;;; two arguments are used for determining defaults).  If MUSTMATCH-P is true,
2425 ;;; then the filename reader will only accept a file that exists.
2426 ;;;
2427 ;;; A typical use:
2428 ;;; (interactive (term-get-source "Compile file: " prev-lisp-dir/file
2429 ;;;                                 '(lisp-mode) t))
2430
2431 ;;; This is pretty stupid about strings.  It decides we're in a string
2432 ;;; if there's a quote on both sides of point on the current line.
2433 (defun term-extract-string ()
2434   "Return string around `point' that starts the current line or nil."
2435   (save-excursion
2436     (let* ((point (point))
2437            (bol (progn (beginning-of-line) (point)))
2438            (eol (progn (end-of-line) (point)))
2439            (start (progn (goto-char point)
2440                          (and (search-backward "\"" bol t)
2441                               (1+ (point)))))
2442            (end (progn (goto-char point)
2443                        (and (search-forward "\"" eol t)
2444                             (1- (point))))))
2445       (and start end
2446            (buffer-substring start end)))))
2447
2448 (defun term-get-source (prompt prev-dir/file source-modes mustmatch-p)
2449   (let* ((def (term-source-default prev-dir/file source-modes))
2450          (stringfile (term-extract-string))
2451          (sfile-p (and stringfile
2452                        (condition-case ()
2453                            (file-exists-p stringfile)
2454                          (error nil))
2455                        (not (file-directory-p stringfile))))
2456          (defdir  (if sfile-p (file-name-directory stringfile)
2457                       (car def)))
2458          (deffile (if sfile-p (file-name-nondirectory stringfile)
2459                       (cdr def)))
2460          (ans (read-file-name (if deffile (format "%s(default %s) "
2461                                                   prompt    deffile)
2462                                   prompt)
2463                               defdir
2464                               (concat defdir deffile)
2465                               mustmatch-p)))
2466     (list (expand-file-name (substitute-in-file-name ans)))))
2467
2468 ;;; I am somewhat divided on this string-default feature.  It seems
2469 ;;; to violate the principle-of-least-astonishment, in that it makes
2470 ;;; the default harder to predict, so you actually have to look and see
2471 ;;; what the default really is before choosing it.  This can trip you up.
2472 ;;; On the other hand, it can be useful, I guess.  I would appreciate feedback
2473 ;;; on this.
2474 ;;;     -Olin
2475
2476 \f
2477 ;;; Simple process query facility.
2478 ;;; ===========================================================================
2479 ;;; This function is for commands that want to send a query to the process
2480 ;;; and show the response to the user.  For example, a command to get the
2481 ;;; arglist for a Common Lisp function might send a "(arglist 'foo)" query
2482 ;;; to an inferior Common Lisp process.
2483 ;;;
2484 ;;; This simple facility just sends strings to the inferior process and pops
2485 ;;; up a window for the process buffer so you can see what the process
2486 ;;; responds with.  We don't do anything fancy like try to intercept what the
2487 ;;; process responds with and put it in a pop-up window or on the message
2488 ;;; line.  We just display the buffer.  Low tech.  Simple.  Works good.
2489
2490 ;;; Send to the inferior process PROC the string STR.  Pop-up but do not select
2491 ;;; a window for the inferior process so that its response can be seen.
2492 (defun term-proc-query (proc str)
2493   (let* ((proc-buf (process-buffer proc))
2494          (proc-mark (process-mark proc)))
2495     (display-buffer proc-buf)
2496     (set-buffer proc-buf) ; but it's not the selected *window*
2497     (let ((proc-win (get-buffer-window proc-buf))
2498           (proc-pt (marker-position proc-mark)))
2499       (term-send-string proc str) ; send the query
2500       (accept-process-output proc)  ; wait for some output
2501       ;; Try to position the proc window so you can see the answer.
2502       ;; This is bogus code.  If you delete the (sit-for 0), it breaks.
2503       ;; I don't know why.  Wizards invited to improve it.
2504       (if (not (pos-visible-in-window-p proc-pt proc-win))
2505           (let ((opoint (window-point proc-win)))
2506             (set-window-point proc-win proc-mark) (sit-for 0)
2507             (if (not (pos-visible-in-window-p opoint proc-win))
2508                 (push-mark opoint)
2509                 (set-window-point proc-win opoint)))))))
2510 \f
2511 ;;; Returns the current column in the current screen line.
2512 ;;; Note: (current-column) yields column in buffer line.
2513
2514 (defun term-horizontal-column ()
2515   (- (term-current-column) (term-start-line-column)))
2516
2517 ;; Calls either vertical-motion or term-buffer-vertical-motion
2518 (defmacro term-vertical-motion (count)
2519   (list 'funcall 'term-vertical-motion count))
2520
2521 ;; An emulation of vertical-motion that is independent of having a window.
2522 ;; Instead, it uses the term-width variable as the logical window width.
2523
2524 (defun term-buffer-vertical-motion (count)
2525   (cond ((= count 0)
2526          (move-to-column (* term-width (/ (current-column) term-width)))
2527          0)
2528         ((> count 0)
2529          (let ((H)
2530                (todo (+ count (/ (current-column) term-width))))
2531            (end-of-line)
2532            ;; The loop iterates over buffer lines;
2533            ;; H is the number of screen lines in the current line, i.e.
2534            ;; the ceiling of dividing the buffer line width by term-width.
2535            (while (and (<= (setq H (max (/ (+ (current-column) term-width -1)
2536                                            term-width)
2537                                         1))
2538                            todo)
2539                        (not (eobp)))
2540              (setq todo (- todo H))
2541              (forward-char) ;; Move past the ?\n
2542              (end-of-line)) ;; and on to the end of the next line.
2543            (if (and (>= todo H) (> todo 0))
2544                (+ (- count todo) H -1) ;; Hit end of buffer.
2545              (move-to-column (* todo term-width))
2546              count)))
2547         (t ;; (< count 0) ;; Similar algorithm, but for upward motion.
2548          (let ((H)
2549                (todo (- count)))
2550            (while (and (<= (setq H (max (/ (+ (current-column) term-width -1)
2551                                            term-width)
2552                                         1))
2553                            todo)
2554                        (progn (beginning-of-line)
2555                               (not (bobp))))
2556              (setq todo (- todo H))
2557              (backward-char)) ;; Move to end of previous line.
2558            (if (and (>= todo H) (> todo 0))
2559                (+ count todo (- 1 H)) ;; Hit beginning of buffer.
2560              (move-to-column (* (- H todo 1) term-width))
2561              count)))))
2562
2563 ;;; The term-start-line-column variable is used as a cache.
2564 (defun term-start-line-column ()
2565   (cond (term-start-line-column)
2566         ((let ((save-pos (point)))
2567            (term-vertical-motion 0)
2568            (setq term-start-line-column (current-column))
2569            (goto-char save-pos)
2570            term-start-line-column))))
2571
2572 ;;; Same as (current-column), but uses term-current-column as a cache.
2573 (defun term-current-column ()
2574   (cond (term-current-column)
2575         ((setq term-current-column (current-column)))))
2576
2577 ;;; Move DELTA column right (or left if delta < 0 limiting at column 0).
2578
2579 (defun term-move-columns (delta)
2580   (setq term-current-column (max 0 (+ (term-current-column) delta)))
2581   (let (point-at-eol)
2582     (save-excursion
2583       (end-of-line)
2584       (setq point-at-eol (point)))
2585     (move-to-column term-current-column t)
2586     ;; If move-to-column extends the current line it will use the face
2587     ;; from the last character on the line, set the face for the chars
2588     ;; to default.
2589     (when (> (point) point-at-eol)
2590       (put-text-property point-at-eol (point) 'face 'default))))
2591
2592 ;; Insert COUNT copies of CHAR in the default face.
2593 (defun term-insert-char (char count)
2594   (let ((old-point (point)))
2595     (insert-char char count)
2596     (put-text-property old-point (point) 'face 'default)))
2597
2598 (defun term-current-row ()
2599   (cond (term-current-row)
2600         ((setq term-current-row
2601                (save-restriction
2602                  (save-excursion
2603                    (narrow-to-region term-home-marker (point-max))
2604                    (- (term-vertical-motion -9999))))))))
2605
2606 (defun term-adjust-current-row-cache (delta)
2607   (when term-current-row
2608     (setq term-current-row
2609           (max 0 (+ term-current-row delta)))))
2610
2611 (defun term-terminal-pos ()
2612   (save-excursion ;    save-restriction
2613     (let ((save-col (term-current-column))
2614           x y)
2615       (term-vertical-motion 0)
2616       (setq x (- save-col (current-column)))
2617       (setq y (term-vertical-motion term-height))
2618       (cons x y))))
2619
2620 ;;;Function that handles term messages: code by rms ( and you can see the
2621 ;;;difference ;-) -mm
2622
2623 (defun term-handle-ansi-terminal-messages (message)
2624   ;; Is there a command here?
2625   (while (string-match "\eAnSiT.+\n" message)
2626     ;; Extract the command code and the argument.
2627     (let* ((start (match-beginning 0))
2628            (end (match-end 0))
2629            (command-code (aref message (+ start 6)))
2630            (argument
2631             (save-match-data
2632               (substring message
2633                          (+ start 8)
2634                          (string-match "\r?\n" message
2635                                        (+ start 8)))))
2636            ignore)
2637       ;; Delete this command from MESSAGE.
2638       (setq message (replace-match "" t t message))
2639
2640       ;; If we recognize the type of command, set the appropriate variable.
2641       (cond ((= command-code ?c)
2642              (setq term-ansi-at-dir argument))
2643             ((= command-code ?h)
2644              (setq term-ansi-at-host argument))
2645             ((= command-code ?u)
2646              (setq term-ansi-at-user argument))
2647             ;; Otherwise ignore this one.
2648             (t
2649              (setq ignore t)))
2650
2651       ;; Update default-directory based on the changes this command made.
2652       (if ignore
2653           nil
2654         (setq default-directory
2655               (file-name-as-directory
2656                (if (and (string= term-ansi-at-host (system-name))
2657                                         (string= term-ansi-at-user (user-real-login-name)))
2658                    (expand-file-name term-ansi-at-dir)
2659                  (if (string= term-ansi-at-user (user-real-login-name))
2660                      (concat "/" term-ansi-at-host ":" term-ansi-at-dir)
2661                    (concat "/" term-ansi-at-user "@" term-ansi-at-host ":"
2662                            term-ansi-at-dir)))))
2663
2664         ;; I'm not sure this is necessary,
2665         ;; but it's best to be on the safe side.
2666         (if (string= term-ansi-at-host (system-name))
2667             (progn
2668               (setq ange-ftp-default-user term-ansi-at-save-user)
2669               (setq ange-ftp-default-password term-ansi-at-save-pwd)
2670               (setq ange-ftp-generate-anonymous-password term-ansi-at-save-anon))
2671           (setq term-ansi-at-save-user ange-ftp-default-user)
2672           (setq term-ansi-at-save-pwd ange-ftp-default-password)
2673           (setq term-ansi-at-save-anon ange-ftp-generate-anonymous-password)
2674           (setq ange-ftp-default-user nil)
2675           (setq ange-ftp-default-password nil)
2676           (setq ange-ftp-generate-anonymous-password nil)))))
2677   message)
2678
2679
2680 ;;; Terminal emulation
2681 ;;; This is the standard process filter for term buffers.
2682 ;;; It emulates (most of the features of) a VT100/ANSI-style terminal.
2683
2684 (defun term-emulate-terminal (proc str)
2685   (with-current-buffer (process-buffer proc)
2686     (let* ((i 0) char funny count save-point save-marker old-point temp win
2687            (buffer-undo-list t)
2688            (selected (selected-window))
2689            last-win
2690            handled-ansi-message
2691            (str-length (length str)))
2692       (save-selected-window
2693
2694         ;; Let's handle the messages. -mm
2695
2696         (let* ((newstr (term-handle-ansi-terminal-messages str)))
2697           (if (not (eq str newstr))
2698               (setq handled-ansi-message t
2699                     str newstr)))
2700         (setq str-length (length str))
2701
2702         (if (marker-buffer term-pending-delete-marker)
2703             (progn
2704               ;; Delete text following term-pending-delete-marker.
2705               (delete-region term-pending-delete-marker (process-mark proc))
2706               (set-marker term-pending-delete-marker nil)))
2707
2708         (if (eq (window-buffer) (current-buffer))
2709             (progn
2710               (setq term-vertical-motion (symbol-function 'vertical-motion))
2711               (term-check-size proc))
2712           (setq term-vertical-motion
2713                 (symbol-function 'term-buffer-vertical-motion)))
2714
2715         (setq save-marker (copy-marker (process-mark proc)))
2716
2717         (if (/= (point) (process-mark proc))
2718             (progn (setq save-point (point-marker))
2719                    (goto-char (process-mark proc))))
2720
2721         (save-restriction
2722           ;; If the buffer is in line mode, and there is a partial
2723           ;; input line, save the line (by narrowing to leave it
2724           ;; outside the restriction ) until we're done with output.
2725           (if (and (> (point-max) (process-mark proc))
2726                    (term-in-line-mode))
2727               (narrow-to-region (point-min) (process-mark proc)))
2728
2729           (if term-log-buffer
2730               (princ str term-log-buffer))
2731           (cond ((eq term-terminal-state 4) ;; Have saved pending output.
2732                  (setq str (concat term-terminal-parameter str))
2733                  (setq term-terminal-parameter nil)
2734                  (setq str-length (length str))
2735                  (setq term-terminal-state 0)))
2736
2737           (while (< i str-length)
2738             (setq char (aref str i))
2739             (cond ((< term-terminal-state 2)
2740                    ;; Look for prefix of regular chars
2741                    (setq funny
2742                          (string-match "[\r\n\000\007\033\t\b\032\016\017]"
2743                                        str i))
2744                    (if (not funny) (setq funny str-length))
2745                    (cond ((> funny i)
2746                           (cond ((eq term-terminal-state 1)
2747                                  ;; We are in state 1, we need to wrap
2748                                  ;; around.  Go to the beginning of
2749                                  ;; the next line and switch to state
2750                                  ;; 0.
2751                                  (term-down 1)
2752                                  (term-move-columns (- (term-current-column)))
2753                                  (setq term-terminal-state 0)))
2754                           (setq count (- funny i))
2755                           (setq temp (- (+ (term-horizontal-column) count)
2756                                         term-width))
2757                           (cond ((<= temp 0)) ;; All count chars fit in line.
2758                                 ((> count temp) ;; Some chars fit.
2759                                  ;; This iteration, handle only what fits.
2760                                  (setq count (- count temp))
2761                                  (setq temp 0)
2762                                  (setq funny (+ count i)))
2763                                 ((or (not (or term-pager-count
2764                                               term-scroll-with-delete))
2765                                      (>  (term-handle-scroll 1) 0))
2766                                  (term-adjust-current-row-cache 1)
2767                                  (setq count (min count term-width))
2768                                  (setq funny (+ count i))
2769                                  (setq term-start-line-column
2770                                        term-current-column))
2771                                 (t ;; Doing PAGER processing.
2772                                  (setq count 0 funny i)
2773                                  (setq term-current-column nil)
2774                                  (setq term-start-line-column nil)))
2775                           (setq old-point (point))
2776
2777                           ;; Insert a string, check how many columns
2778                           ;; we moved, then delete that many columns
2779                           ;; following point if not eob nor insert-mode.
2780                           (let ((old-column (current-column))
2781                                 columns pos)
2782                             (insert (decode-coding-string (substring str i funny) locale-coding-system))
2783                             (setq term-current-column (current-column)
2784                                   columns (- term-current-column old-column))
2785                             (when (not (or (eobp) term-insert-mode))
2786                               (setq pos (point))
2787                               (term-move-columns columns)
2788                               (delete-region pos (point)))
2789                             ;; In insert if the if the current line
2790                             ;; has become too long it needs to be
2791                             ;; chopped off.
2792                             (when term-insert-mode
2793                               (setq pos (point))
2794                               (end-of-line)
2795                               (when (> (current-column) term-width)
2796                                 (delete-region (- (point) (- (current-column) term-width))
2797                                                (point)))
2798                               (goto-char pos)))
2799                           (setq term-current-column nil)
2800
2801                           (put-text-property old-point (point)
2802                                              'face term-current-face)
2803                           ;; If the last char was written in last column,
2804                           ;; back up one column, but remember we did so.
2805                           ;; Thus we emulate xterm/vt100-style line-wrapping.
2806                           (cond ((eq temp 0)
2807                                  (term-move-columns -1)
2808                                  (setq term-terminal-state 1)))
2809                           (setq i (1- funny)))
2810                          ((and (setq term-terminal-state 0)
2811                                (eq char ?\^I)) ; TAB (terminfo: ht)
2812                           (setq count (term-current-column))
2813                           ;; The line cannot exceed term-width. TAB at
2814                           ;; the end of a line should not cause wrapping.
2815                           (setq count (min term-width
2816                                            (+ count 8 (- (mod count 8)))))
2817                           (if (> term-width count)
2818                             (progn
2819                               (term-move-columns
2820                                (- count (term-current-column)))
2821                               (setq term-current-column count))
2822                             (when (> term-width (term-current-column))
2823                               (term-move-columns
2824                                (1- (- term-width (term-current-column)))))
2825                             (when (= term-width (term-current-column))
2826                               (term-move-columns -1))))
2827                          ((eq char ?\r)  ;; (terminfo: cr)
2828                           ;; Optimize CRLF at end of buffer:
2829                           (cond ((and (< (setq temp (1+ i)) str-length)
2830                                       (eq (aref str temp) ?\n)
2831                                       (= (point) (point-max))
2832                                       (not (or term-pager-count
2833                                                term-kill-echo-list
2834                                                term-scroll-with-delete)))
2835                                  (insert ?\n)
2836                                  (term-adjust-current-row-cache 1)
2837                                  (setq term-start-line-column 0)
2838                                  (setq term-current-column 0)
2839                                  (setq i temp))
2840                                 (t ;; Not followed by LF or can't optimize:
2841                                  (term-vertical-motion 0)
2842                                  (setq term-current-column term-start-line-column))))
2843                          ((eq char ?\n)  ;; (terminfo: cud1, ind)
2844                           (if (not (and term-kill-echo-list
2845                                         (term-check-kill-echo-list)))
2846                               (term-down 1 t)))
2847                          ((eq char ?\b)  ;; (terminfo: cub1)
2848                           (term-move-columns -1))
2849                          ((eq char ?\033) ; Escape
2850                           (setq term-terminal-state 2))
2851                          ((eq char 0))         ; NUL: Do nothing
2852                          ((eq char ?\016))     ; Shift Out - ignored
2853                          ((eq char ?\017))     ; Shift In - ignored
2854                          ((eq char ?\^G) ;; (terminfo: bel)
2855                           (beep t))
2856                          ((and (eq char ?\032)
2857                                (not handled-ansi-message))
2858                           (let ((end (string-match "\r?$" str i)))
2859                             (if end
2860                                 (funcall term-command-hook
2861                                          (prog1 (substring str (1+ i) end)
2862                                            (setq i (match-end 0))))
2863                               (setq term-terminal-parameter (substring str i))
2864                               (setq term-terminal-state 4)
2865                               (setq i str-length))))
2866                          (t   ; insert char FIXME: Should never happen
2867                           (term-move-columns 1)
2868                           (backward-delete-char 1)
2869                           (insert char))))
2870                   ((eq term-terminal-state 2)     ; Seen Esc
2871                    (cond ((eq char ?\133)         ;; ?\133 = ?[
2872
2873 ;;; Some modifications to cope with multiple settings like ^[[01;32;43m -mm
2874 ;;; Note that now the init value of term-terminal-previous-parameter has
2875 ;;; been changed to -1
2876
2877                           (make-local-variable 'term-terminal-parameter)
2878                           (make-local-variable 'term-terminal-previous-parameter)
2879                           (make-local-variable 'term-terminal-previous-parameter-2)
2880                           (make-local-variable 'term-terminal-previous-parameter-3)
2881                           (make-local-variable 'term-terminal-previous-parameter-4)
2882                           (make-local-variable 'term-terminal-more-parameters)
2883                           (setq term-terminal-parameter 0)
2884                           (setq term-terminal-previous-parameter -1)
2885                           (setq term-terminal-previous-parameter-2 -1)
2886                           (setq term-terminal-previous-parameter-3 -1)
2887                           (setq term-terminal-previous-parameter-4 -1)
2888                           (setq term-terminal-more-parameters 0)
2889                           (setq term-terminal-state 3))
2890                          ((eq char ?D) ;; scroll forward
2891                           (term-handle-deferred-scroll)
2892                           (term-down 1 t)
2893                           (setq term-terminal-state 0))
2894                          ;; ((eq char ?E) ;; (terminfo: nw), not used for
2895                          ;;            ;; now, but this is a working
2896                          ;;            ;; implementation
2897                          ;;  (term-down 1)
2898                          ;;  (term-goto term-current-row 0)
2899                          ;;  (setq term-terminal-state 0))
2900                          ((eq char ?M) ;; scroll reversed (terminfo: ri)
2901                           (term-down -1)
2902                           (setq term-terminal-state 0))
2903                          ((eq char ?7) ;; Save cursor (terminfo: sc)
2904                           (term-handle-deferred-scroll)
2905                           (setq term-saved-cursor
2906                                 (cons (term-current-row)
2907                                       (term-horizontal-column)))
2908                           (setq term-terminal-state 0))
2909                          ((eq char ?8) ;; Restore cursor (terminfo: rc)
2910                           (if term-saved-cursor
2911                               (term-goto (car term-saved-cursor)
2912                                          (cdr term-saved-cursor)))
2913                           (setq term-terminal-state 0))
2914                          ((eq char ?c) ;; \Ec - Reset (terminfo: rs1)
2915                           ;; This is used by the "clear" program.
2916                           (setq term-terminal-state 0)
2917                           (term-reset-terminal))
2918                          ;; The \E#8 reset sequence for xterm. We
2919                          ;; probably don't need to handle it, but this
2920                          ;; is the code to parse it.
2921                          ;; ((eq char ?#)
2922                          ;;  (when (eq (aref str (1+ i)) ?8)
2923                          ;;    (setq i (1+ i))
2924                          ;;    (setq term-terminal-state 0)))
2925                          ((setq term-terminal-state 0))))
2926                   ((eq term-terminal-state 3) ; Seen Esc [
2927                    (cond ((and (>= char ?0) (<= char ?9))
2928                           (setq term-terminal-parameter
2929                                 (+ (* 10 term-terminal-parameter) (- char ?0))))
2930                          ((eq char ?\;)
2931 ;;; Some modifications to cope with multiple settings like ^[[01;32;43m -mm
2932                           (setq term-terminal-more-parameters 1)
2933                           (setq term-terminal-previous-parameter-4
2934                                 term-terminal-previous-parameter-3)
2935                           (setq term-terminal-previous-parameter-3
2936                                 term-terminal-previous-parameter-2)
2937                           (setq term-terminal-previous-parameter-2
2938                                 term-terminal-previous-parameter)
2939                           (setq term-terminal-previous-parameter
2940                                 term-terminal-parameter)
2941                           (setq term-terminal-parameter 0))
2942                          ((eq char ??)) ; Ignore ?
2943                          (t
2944                           (term-handle-ansi-escape proc char)
2945                           (setq term-terminal-more-parameters 0)
2946                           (setq term-terminal-previous-parameter-4 -1)
2947                           (setq term-terminal-previous-parameter-3 -1)
2948                           (setq term-terminal-previous-parameter-2 -1)
2949                           (setq term-terminal-previous-parameter -1)
2950                           (setq term-terminal-state 0)))))
2951             (if (term-handling-pager)
2952                 ;; Finish stuff to get ready to handle PAGER.
2953                 (progn
2954                   (if (> (% (current-column) term-width) 0)
2955                       (setq term-terminal-parameter
2956                             (substring str i))
2957                     ;; We're at column 0.  Goto end of buffer; to compensate,
2958                     ;; prepend a ?\r for later.  This looks more consistent.
2959                     (if (zerop i)
2960                         (setq term-terminal-parameter
2961                               (concat "\r" (substring str i)))
2962                       (setq term-terminal-parameter (substring str (1- i)))
2963                       (aset term-terminal-parameter 0 ?\r))
2964                     (goto-char (point-max)))
2965                   (setq term-terminal-state 4)
2966                   (make-local-variable 'term-pager-old-filter)
2967                   (setq term-pager-old-filter (process-filter proc))
2968                   (set-process-filter proc term-pager-filter)
2969                   (setq i str-length)))
2970             (setq i (1+ i))))
2971
2972         (if (>= (term-current-row) term-height)
2973             (term-handle-deferred-scroll))
2974
2975         (set-marker (process-mark proc) (point))
2976         (if save-point
2977             (progn (goto-char save-point)
2978                    (set-marker save-point nil)))
2979
2980         ;; Check for a pending filename-and-line number to display.
2981         ;; We do this before scrolling, because we might create a new window.
2982         (if (and term-pending-frame
2983                  (eq (window-buffer selected) (current-buffer)))
2984             (progn (term-display-line (car term-pending-frame)
2985                                       (cdr term-pending-frame))
2986                    (setq term-pending-frame nil)
2987                    ;; We have created a new window, so check the window size.
2988                    (term-check-size proc)))
2989
2990         ;; Scroll each window displaying the buffer but (by default)
2991         ;; only if the point matches the process-mark we started with.
2992         (setq win selected)
2993         ;; Avoid infinite loop in strange case where minibuffer window
2994         ;; is selected but not active.
2995         (while (window-minibuffer-p win)
2996           (setq win (next-window win nil t)))
2997         (setq last-win win)
2998         (while (progn
2999                  (setq win (next-window win nil t))
3000                  (if (eq (window-buffer win) (process-buffer proc))
3001                      (let ((scroll term-scroll-to-bottom-on-output))
3002                        (select-window win)
3003                        (if (or (= (point) save-marker)
3004                                (eq scroll t) (eq scroll 'all)
3005                                ;; Maybe user wants point to jump to the end.
3006                                (and (eq selected win)
3007                                     (or (eq scroll 'this) (not save-point)))
3008                                (and (eq scroll 'others)
3009                                     (not (eq selected win))))
3010                            (progn
3011                              (goto-char term-home-marker)
3012                              (recenter 0)
3013                              (goto-char (process-mark proc))
3014                              (if (not (pos-visible-in-window-p (point) win))
3015                                  (recenter -1))))
3016                        ;; Optionally scroll so that the text
3017                        ;; ends at the bottom of the window.
3018                        (if (and term-scroll-show-maximum-output
3019                                 (>= (point) (process-mark proc)))
3020                            (save-excursion
3021                              (goto-char (point-max))
3022                              (recenter -1)))))
3023                  (not (eq win last-win))))
3024
3025 ;;; Stolen from comint.el and adapted -mm
3026         (if (> term-buffer-maximum-size 0)
3027             (save-excursion
3028               (goto-char (process-mark (get-buffer-process (current-buffer))))
3029               (forward-line (- term-buffer-maximum-size))
3030               (beginning-of-line)
3031               (delete-region (point-min) (point))))
3032 ;;;
3033
3034         (set-marker save-marker nil)))))
3035
3036 (defun term-handle-deferred-scroll ()
3037   (let ((count (- (term-current-row) term-height)))
3038     (if (>= count 0)
3039         (save-excursion
3040           (goto-char term-home-marker)
3041           (term-vertical-motion (1+ count))
3042           (set-marker term-home-marker (point))
3043           (setq term-current-row (1- term-height))))))
3044
3045 ;;; Reset the terminal, delete all the content and set the face to the
3046 ;;; default one.
3047 (defun term-reset-terminal ()
3048   (erase-buffer)
3049   (setq term-current-row 0)
3050   (setq term-current-column 1)
3051   (setq term-insert-mode nil)
3052   (setq term-current-face nil)
3053   (setq term-ansi-current-underline nil)
3054   (setq term-ansi-current-bold nil)
3055   (setq term-ansi-current-reverse nil)
3056   (setq term-ansi-current-color 0)
3057   (setq term-ansi-current-invisible nil)
3058   (setq term-ansi-face-already-done nil)
3059   (setq term-ansi-current-bg-color 0))
3060
3061 ;;; New function to deal with ansi colorized output, as you can see you can
3062 ;;; have any bold/underline/fg/bg/reverse combination. -mm
3063
3064 (defun term-handle-colors-array (parameter)
3065   (cond
3066
3067 ;;; Bold  (terminfo: bold)
3068    ((eq parameter 1)
3069     (setq term-ansi-current-bold t))
3070
3071 ;;; Underline
3072    ((eq parameter 4)
3073     (setq term-ansi-current-underline t))
3074
3075 ;;; Blink (unsupported by Emacs), will be translated to bold.
3076 ;;; This may change in the future though.
3077    ((eq parameter 5)
3078     (setq term-ansi-current-bold t))
3079
3080 ;;; Reverse (terminfo: smso)
3081    ((eq parameter 7)
3082     (setq term-ansi-current-reverse t))
3083
3084 ;;; Invisible
3085    ((eq parameter 8)
3086     (setq term-ansi-current-invisible t))
3087
3088 ;;; Reset underline (terminfo: rmul)
3089    ((eq parameter 24)
3090     (setq term-ansi-current-underline nil))
3091
3092 ;;; Reset reverse (terminfo: rmso)
3093    ((eq parameter 27)
3094     (setq term-ansi-current-reverse nil))
3095
3096 ;;; Foreground
3097    ((and (>= parameter 30) (<= parameter 37))
3098     (setq term-ansi-current-color (- parameter 29)))
3099
3100 ;;; Reset foreground
3101    ((eq parameter 39)
3102     (setq term-ansi-current-color 0))
3103
3104 ;;; Background
3105    ((and (>= parameter 40) (<= parameter 47))
3106     (setq term-ansi-current-bg-color (- parameter 39)))
3107
3108 ;;; Reset background
3109    ((eq parameter 49)
3110     (setq term-ansi-current-bg-color 0))
3111
3112 ;;; 0 (Reset) or unknown (reset anyway)
3113    (t
3114     (setq term-current-face nil)
3115     (setq term-ansi-current-underline nil)
3116     (setq term-ansi-current-bold nil)
3117     (setq term-ansi-current-reverse nil)
3118     (setq term-ansi-current-color 0)
3119     (setq term-ansi-current-invisible nil)
3120     (setq term-ansi-face-already-done t)
3121     (setq term-ansi-current-bg-color 0)))
3122
3123 ;       (message "Debug: U-%d R-%d B-%d I-%d D-%d F-%d B-%d"
3124 ;                  term-ansi-current-underline
3125 ;                  term-ansi-current-reverse
3126 ;                  term-ansi-current-bold
3127 ;                  term-ansi-current-invisible
3128 ;                  term-ansi-face-already-done
3129 ;                  term-ansi-current-color
3130 ;                  term-ansi-current-bg-color)
3131
3132
3133   (unless term-ansi-face-already-done
3134       (if term-ansi-current-reverse
3135           (if term-ansi-current-invisible
3136               (setq term-current-face
3137                     (if (= term-ansi-current-color 0)
3138                         (list :background
3139                               term-default-fg-color
3140                               :foreground
3141                               term-default-fg-color)
3142                       (list :background
3143                             (elt ansi-term-color-vector term-ansi-current-color)
3144                             :foreground
3145                             (elt ansi-term-color-vector term-ansi-current-color)))
3146                     ;; No need to bother with anything else if it's invisible
3147                     )
3148             (setq term-current-face
3149                   (list :background
3150                         (if (= term-ansi-current-color 0)
3151                             (face-foreground 'default)
3152                             (elt ansi-term-color-vector term-ansi-current-color))
3153                         :foreground
3154                         (if (= term-ansi-current-bg-color 0)
3155                             (face-background 'default)
3156                         (elt ansi-term-color-vector term-ansi-current-bg-color))))
3157             (when term-ansi-current-bold
3158                 (setq term-current-face
3159                       (append '(:weight bold) term-current-face)))
3160             (when term-ansi-current-underline
3161                 (setq term-current-face
3162                       (append '(:underline t) term-current-face))))
3163         (if term-ansi-current-invisible
3164             (setq term-current-face
3165                   (if (= term-ansi-current-bg-color 0)
3166                       (list :background
3167                             term-default-bg-color
3168                             :foreground
3169                             term-default-bg-color)
3170                     (list :foreground
3171                           (elt ansi-term-color-vector term-ansi-current-bg-color)
3172                           :background
3173                           (elt ansi-term-color-vector term-ansi-current-bg-color)))
3174                   ;; No need to bother with anything else if it's invisible
3175                   )
3176           (setq term-current-face
3177                 (list :foreground
3178                       (elt ansi-term-color-vector term-ansi-current-color)
3179                       :background
3180                       (elt ansi-term-color-vector term-ansi-current-bg-color)))
3181           (when term-ansi-current-bold
3182               (setq term-current-face
3183                     (append '(:weight bold) term-current-face)))
3184           (when term-ansi-current-underline
3185               (setq term-current-face
3186                     (append '(:underline t) term-current-face))))))
3187
3188 ;;;     (message "Debug %S" term-current-face)
3189   (setq term-ansi-face-already-done nil))
3190
3191
3192 ;;; Handle a character assuming (eq terminal-state 2) -
3193 ;;; i.e. we have previously seen Escape followed by ?[.
3194
3195 (defun term-handle-ansi-escape (proc char)
3196   (cond
3197    ((or (eq char ?H)  ; cursor motion (terminfo: cup,home)
3198         ;; (eq char ?f) ; xterm seems to handle this sequence too, not
3199         ;; needed for now
3200         )
3201     (if (<= term-terminal-parameter 0)
3202         (setq term-terminal-parameter 1))
3203     (if (<= term-terminal-previous-parameter 0)
3204         (setq term-terminal-previous-parameter 1))
3205     (if (> term-terminal-previous-parameter term-height)
3206         (setq term-terminal-previous-parameter term-height))
3207     (if (> term-terminal-parameter term-width)
3208         (setq term-terminal-parameter term-width))
3209     (term-goto
3210      (1- term-terminal-previous-parameter)
3211      (1- term-terminal-parameter)))
3212    ;; \E[A - cursor up (terminfo: cuu, cuu1)
3213    ((eq char ?A)
3214     (term-handle-deferred-scroll)
3215     (term-down (- (max 1 term-terminal-parameter)) t))
3216    ;; \E[B - cursor down (terminfo: cud)
3217    ((eq char ?B)
3218     (term-down (max 1 term-terminal-parameter) t))
3219    ;; \E[C - cursor right (terminfo: cuf, cuf1)
3220    ((eq char ?C)
3221     (term-move-columns
3222      (max 1
3223           (if (>= (+ term-terminal-parameter (term-current-column)) term-width)
3224               (- term-width (term-current-column)  1)
3225             term-terminal-parameter))))
3226    ;; \E[D - cursor left (terminfo: cub)
3227    ((eq char ?D)
3228     (term-move-columns (- (max 1 term-terminal-parameter))))
3229    ;; \E[J - clear to end of screen (terminfo: ed, clear)
3230    ((eq char ?J)
3231     (term-erase-in-display term-terminal-parameter))
3232    ;; \E[K - clear to end of line (terminfo: el, el1)
3233    ((eq char ?K)
3234     (term-erase-in-line term-terminal-parameter))
3235    ;; \E[L - insert lines (terminfo: il, il1)
3236    ((eq char ?L)
3237     (term-insert-lines (max 1 term-terminal-parameter)))
3238    ;; \E[M - delete lines (terminfo: dl, dl1)
3239    ((eq char ?M)
3240     (term-delete-lines (max 1 term-terminal-parameter)))
3241    ;; \E[P - delete chars (terminfo: dch, dch1)
3242    ((eq char ?P)
3243     (term-delete-chars (max 1 term-terminal-parameter)))
3244    ;; \E[@ - insert spaces (terminfo: ich)
3245    ((eq char ?@)
3246     (term-insert-spaces (max 1 term-terminal-parameter)))
3247    ;; \E[?h - DEC Private Mode Set
3248    ((eq char ?h)
3249     (cond ((eq term-terminal-parameter 4)  ;; (terminfo: smir)
3250            (setq term-insert-mode t))
3251           ;; ((eq term-terminal-parameter 47) ;; (terminfo: smcup)
3252           ;; (term-switch-to-alternate-sub-buffer t))
3253           ))
3254    ;; \E[?l - DEC Private Mode Reset
3255    ((eq char ?l)
3256     (cond ((eq term-terminal-parameter 4)  ;; (terminfo: rmir)
3257            (setq term-insert-mode nil))
3258           ;; ((eq term-terminal-parameter 47) ;; (terminfo: rmcup)
3259           ;; (term-switch-to-alternate-sub-buffer nil))
3260           ))
3261
3262 ;;; Modified to allow ansi coloring -mm
3263    ;; \E[m - Set/reset modes, set bg/fg
3264    ;;(terminfo: smso,rmso,smul,rmul,rev,bold,sgr0,invis,op,setab,setaf)
3265    ((eq char ?m)
3266     (when (= term-terminal-more-parameters 1)
3267       (if (>= term-terminal-previous-parameter-4 0)
3268           (term-handle-colors-array term-terminal-previous-parameter-4))
3269       (if (>= term-terminal-previous-parameter-3 0)
3270           (term-handle-colors-array term-terminal-previous-parameter-3))
3271       (if (>= term-terminal-previous-parameter-2 0)
3272           (term-handle-colors-array term-terminal-previous-parameter-2))
3273       (term-handle-colors-array term-terminal-previous-parameter))
3274     (term-handle-colors-array term-terminal-parameter))
3275
3276    ;; \E[6n - Report cursor position
3277    ((eq char ?n)
3278     (term-handle-deferred-scroll)
3279     (process-send-string proc
3280                          (format "\e[%s;%sR"
3281                                  (1+ (term-current-row))
3282                                  (1+ (term-horizontal-column)))))
3283    ;; \E[r - Set scrolling region
3284    ((eq char ?r) ;; (terminfo: csr)
3285     (term-scroll-region
3286      (1- term-terminal-previous-parameter)
3287      term-terminal-parameter))
3288    (t)))
3289
3290 (defun term-scroll-region (top bottom)
3291   "Set scrolling region.
3292 TOP is the top-most line (inclusive) of the new scrolling region,
3293 while BOTTOM is the line following the new scrolling region (e.g. exclusive).
3294 The top-most line is line 0."
3295   (setq term-scroll-start
3296         (if (or (< top 0) (>= top term-height))
3297             0
3298           top))
3299   (setq term-scroll-end
3300         (if (or (<= bottom term-scroll-start) (> bottom term-height))
3301             term-height
3302           bottom))
3303   (setq term-scroll-with-delete
3304         (or (term-using-alternate-sub-buffer)
3305             (not (and (= term-scroll-start 0)
3306                       (= term-scroll-end term-height)))))
3307   (term-move-columns (- (term-current-column)))
3308   (term-goto
3309    term-scroll-start (term-current-column)))
3310
3311 ;; (defun term-switch-to-alternate-sub-buffer (set)
3312 ;;   ;; If asked to switch to (from) the alternate sub-buffer, and already (not)
3313 ;;   ;; using it, do nothing.  This test is needed for some programs (including
3314 ;;   ;; Emacs) that emit the ti termcap string twice, for unknown reason.
3315 ;;   (term-handle-deferred-scroll)
3316 ;;   (if (eq set (not (term-using-alternate-sub-buffer)))
3317 ;;       (let ((row (term-current-row))
3318 ;;          (col (term-horizontal-column)))
3319 ;;      (cond (set
3320 ;;             (goto-char (point-max))
3321 ;;             (if (not (eq (preceding-char) ?\n))
3322 ;;                 (term-insert-char ?\n 1))
3323 ;;             (setq term-scroll-with-delete t)
3324 ;;             (setq term-saved-home-marker (copy-marker term-home-marker))
3325 ;;             (set-marker term-home-marker (point)))
3326 ;;            (t
3327 ;;             (setq term-scroll-with-delete
3328 ;;                   (not (and (= term-scroll-start 0)
3329 ;;                             (= term-scroll-end term-height))))
3330 ;;             (set-marker term-home-marker term-saved-home-marker)
3331 ;;             (set-marker term-saved-home-marker nil)
3332 ;;             (setq term-saved-home-marker nil)
3333 ;;             (goto-char term-home-marker)))
3334 ;;      (setq term-current-column nil)
3335 ;;      (setq term-current-row 0)
3336 ;;      (term-goto row col))))
3337
3338 ;; Default value for the symbol term-command-hook.
3339
3340 (defun term-command-hook (string)
3341   (cond ((equal string "")
3342          t)
3343         ((= (aref string 0) ?\032)
3344          ;; gdb (when invoked with -fullname) prints:
3345          ;; \032\032FULLFILENAME:LINENUMBER:CHARPOS:BEG_OR_MIDDLE:PC\n
3346          (let* ((first-colon (string-match ":" string 1))
3347                 (second-colon
3348                  (string-match ":" string (1+ first-colon)))
3349                 (filename (substring string 1 first-colon))
3350                 (fileline (string-to-number
3351                            (substring string (1+ first-colon) second-colon))))
3352            (setq term-pending-frame (cons filename fileline))))
3353         ((= (aref string 0) ?/)
3354          (cd (substring string 1)))
3355         ;; Allowing the inferior to call functions in Emacs is
3356         ;; probably too big a security hole.
3357         ;; ((= (aref string 0) ?!)
3358         ;; (eval (car (read-from-string string 1))))
3359         (t)));; Otherwise ignore it
3360
3361 ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
3362 ;; and that its line LINE is visible.
3363 ;; Put the overlay-arrow on the line LINE in that buffer.
3364 ;; This is mainly used by gdb.
3365
3366 (defun term-display-line (true-file line)
3367   (term-display-buffer-line (find-file-noselect true-file) line))
3368
3369 (defun term-display-buffer-line (buffer line)
3370   (let* ((window (display-buffer buffer t))
3371          (pos))
3372     (save-excursion
3373       (set-buffer buffer)
3374       (save-restriction
3375         (widen)
3376         (goto-line line)
3377         (setq pos (point))
3378         (setq overlay-arrow-string "=>")
3379         (or overlay-arrow-position
3380             (setq overlay-arrow-position (make-marker)))
3381         (set-marker overlay-arrow-position (point) (current-buffer)))
3382       (cond ((or (< pos (point-min)) (> pos (point-max)))
3383              (widen)
3384              (goto-char pos))))
3385     (set-window-point window overlay-arrow-position)))
3386
3387 ;;; The buffer-local marker term-home-marker defines the "home position"
3388 ;;; (in terms of cursor motion).  However, we move the term-home-marker
3389 ;;; "down" as needed so that is no more that a window-full above (point-max).
3390
3391 (defun term-goto-home ()
3392   (term-handle-deferred-scroll)
3393   (goto-char term-home-marker)
3394   (setq term-current-row 0)
3395   (setq term-current-column (current-column))
3396   (setq term-start-line-column term-current-column))
3397
3398 (defun term-goto (row col)
3399   (term-handle-deferred-scroll)
3400   (cond ((and term-current-row (>= row term-current-row))
3401          ;; I assume this is a worthwhile optimization.
3402          (term-vertical-motion 0)
3403          (setq term-current-column term-start-line-column)
3404          (setq row (- row term-current-row)))
3405         (t
3406          (term-goto-home)))
3407   (term-down row)
3408   (term-move-columns col))
3409
3410 ; The page is full, so enter "pager" mode, and wait for input.
3411
3412 (defun term-process-pager ()
3413   (if (not term-pager-break-map)
3414       (let* ((map (make-keymap))
3415              (i 0) tmp)
3416 ;       (while (< i 128)
3417 ;         (define-key map (make-string 1 i) 'term-send-raw)
3418 ;         (setq i (1+ i)))
3419         (define-key map "\e"
3420           (lookup-key (current-global-map) "\e"))
3421         (define-key map "\C-x"
3422           (lookup-key (current-global-map) "\C-x"))
3423         (define-key map "\C-u"
3424           (lookup-key (current-global-map) "\C-u"))
3425         (define-key map " " 'term-pager-page)
3426         (define-key map "\r" 'term-pager-line)
3427         (define-key map "?" 'term-pager-help)
3428         (define-key map "h" 'term-pager-help)
3429         (define-key map "b" 'term-pager-back-page)
3430         (define-key map "\177" 'term-pager-back-line)
3431         (define-key map "q" 'term-pager-discard)
3432         (define-key map "D" 'term-pager-disable)
3433         (define-key map "<" 'term-pager-bob)
3434         (define-key map ">" 'term-pager-eob)
3435
3436         ;; Add menu bar.
3437         (progn
3438          (term-ifnot-xemacs
3439           (define-key map [menu-bar terminal] term-terminal-menu)
3440           (define-key map [menu-bar signals] term-signals-menu)
3441           (setq tmp (make-sparse-keymap "More pages?"))
3442           (define-key tmp [help] '("Help" . term-pager-help))
3443           (define-key tmp [disable]
3444             '("Disable paging" . term-fake-pager-disable))
3445           (define-key tmp [discard]
3446             '("Discard remaining output" . term-pager-discard))
3447           (define-key tmp [eob] '("Goto to end" . term-pager-eob))
3448           (define-key tmp [bob] '("Goto to beginning" . term-pager-bob))
3449           (define-key tmp [line] '("1 line forwards" . term-pager-line))
3450           (define-key tmp [bline] '("1 line backwards" . term-pager-back-line))
3451           (define-key tmp [back] '("1 page backwards" . term-pager-back-page))
3452           (define-key tmp [page] '("1 page forwards" . term-pager-page))
3453           (define-key map [menu-bar page] (cons "More pages?" tmp))
3454           ))
3455
3456         (setq term-pager-break-map map)))
3457 ;  (let ((process (get-buffer-process (current-buffer))))
3458 ;    (stop-process process))
3459   (setq term-pager-old-local-map (current-local-map))
3460   (use-local-map term-pager-break-map)
3461   (make-local-variable 'term-old-mode-line-format)
3462   (setq term-old-mode-line-format mode-line-format)
3463   (setq mode-line-format
3464         (list "--  **MORE**  "
3465               mode-line-buffer-identification
3466               " [Type ? for help] "
3467               "%-"))
3468   (force-mode-line-update))
3469
3470 (defun term-pager-line (lines)
3471   (interactive "p")
3472   (let* ((moved (vertical-motion (1+ lines)))
3473          (deficit (- lines moved)))
3474     (if (> moved lines)
3475         (backward-char))
3476     (cond ((<= deficit 0) ;; OK, had enough in the buffer for request.
3477            (recenter (1- term-height)))
3478           ((term-pager-continue deficit)))))
3479
3480 (defun term-pager-page (arg)
3481   "Proceed past the **MORE** break, allowing the next page of output to appear"
3482   (interactive "p")
3483   (term-pager-line (* arg term-height)))
3484
3485 ; Pager mode command to go to beginning of buffer
3486 (defun term-pager-bob ()
3487   (interactive)
3488   (goto-char (point-min))
3489   (if (= (vertical-motion term-height) term-height)
3490       (backward-char))
3491   (recenter (1- term-height)))
3492
3493 ; pager mode command to go to end of buffer
3494 (defun term-pager-eob ()
3495   (interactive)
3496   (goto-char term-home-marker)
3497   (recenter 0)
3498   (goto-char (process-mark (get-buffer-process (current-buffer)))))
3499
3500 (defun term-pager-back-line (lines)
3501   (interactive "p")
3502   (vertical-motion (- 1 lines))
3503   (if (not (bobp))
3504       (backward-char)
3505     (beep)
3506     ;; Move cursor to end of window.
3507     (vertical-motion term-height)
3508     (backward-char))
3509   (recenter (1- term-height)))
3510
3511 (defun term-pager-back-page (arg)
3512   (interactive "p")
3513   (term-pager-back-line (* arg term-height)))
3514
3515 (defun term-pager-discard ()
3516   (interactive)
3517   (setq term-terminal-parameter "")
3518   (interrupt-process nil t)
3519   (term-pager-continue term-height))
3520
3521 ; Disable pager processing.
3522 ; Only callable while in pager mode.  (Contrast term-disable-pager.)
3523 (defun term-pager-disable ()
3524   (interactive)
3525   (if (term-handling-pager)
3526       (term-pager-continue nil)
3527     (setq term-pager-count nil))
3528   (term-update-mode-line))
3529
3530 ; Enable pager processing.
3531 (defun term-pager-enable ()
3532   (interactive)
3533   (or (term-pager-enabled)
3534       (setq term-pager-count 0)) ;; Or maybe set to (term-current-row) ??
3535   (term-update-mode-line))
3536
3537 (defun term-pager-toggle ()
3538   (interactive)
3539   (if (term-pager-enabled) (term-pager-disable) (term-pager-enable)))
3540
3541 (term-ifnot-xemacs
3542  (defalias 'term-fake-pager-enable 'term-pager-toggle)
3543  (defalias 'term-fake-pager-disable 'term-pager-toggle)
3544  (put 'term-char-mode 'menu-enable '(term-in-line-mode))
3545  (put 'term-line-mode 'menu-enable '(term-in-char-mode))
3546  (put 'term-fake-pager-enable 'menu-enable '(not term-pager-count))
3547  (put 'term-fake-pager-disable 'menu-enable 'term-pager-count))
3548
3549 (defun term-pager-help ()
3550   "Provide help on commands available in a terminal-emulator **MORE** break"
3551   (interactive)
3552   (message "Terminal-emulator pager break help...")
3553   (sit-for 0)
3554   (with-electric-help
3555     (function (lambda ()
3556                 (princ (substitute-command-keys
3557 "\\<term-pager-break-map>\
3558 Terminal-emulator MORE break.\n\
3559 Type one of the following keys:\n\n\
3560 \\[term-pager-page]\t\tMove forward one page.\n\
3561 \\[term-pager-line]\t\tMove forward one line.\n\
3562 \\[universal-argument] N \\[term-pager-page]\tMove N pages forward.\n\
3563 \\[universal-argument] N \\[term-pager-line]\tMove N lines forward.\n\
3564 \\[universal-argument] N \\[term-pager-back-line]\tMove N lines back.\n\
3565 \\[universal-argument] N \\[term-pager-back-page]\t\tMove N pages back.\n\
3566 \\[term-pager-bob]\t\tMove to the beginning of the buffer.\n\
3567 \\[term-pager-eob]\t\tMove to the end of the buffer.\n\
3568 \\[term-pager-discard]\t\tKill pending output and kill process.\n\
3569 \\[term-pager-disable]\t\tDisable PAGER handling.\n\n\
3570 \\{term-pager-break-map}\n\
3571 Any other key is passed through to the program
3572 running under the terminal emulator and disables pager processing until
3573 all pending output has been dealt with."))
3574                 nil))))
3575
3576 (defun term-pager-continue (new-count)
3577   (let ((process (get-buffer-process (current-buffer))))
3578     (use-local-map term-pager-old-local-map)
3579     (setq term-pager-old-local-map nil)
3580     (setq mode-line-format term-old-mode-line-format)
3581     (force-mode-line-update)
3582     (setq term-pager-count new-count)
3583     (set-process-filter process term-pager-old-filter)
3584     (funcall term-pager-old-filter process "")
3585     (continue-process process)))
3586
3587 ;; Make sure there are DOWN blank lines below the current one.
3588 ;; Return 0 if we're unable (because of PAGER handling), else return DOWN.
3589
3590 (defun term-handle-scroll (down)
3591   (let ((scroll-needed
3592          (- (+ (term-current-row) down 1) term-scroll-end)))
3593     (if (> scroll-needed 0)
3594         (let ((save-point (copy-marker (point))) (save-top))
3595           (goto-char term-home-marker)
3596           (cond (term-scroll-with-delete
3597                  ;; delete scroll-needed lines at term-scroll-start
3598                  (term-vertical-motion term-scroll-start)
3599                  (setq save-top (point))
3600                  (term-vertical-motion scroll-needed)
3601                  (delete-region save-top (point))
3602                  (goto-char save-point)
3603                  (term-vertical-motion down)
3604                  (term-adjust-current-row-cache (- scroll-needed))
3605                  (setq term-current-column nil)
3606                  (term-insert-char ?\n scroll-needed))
3607                 ((and (numberp term-pager-count)
3608                       (< (setq term-pager-count (- term-pager-count down))
3609                          0))
3610                  (setq down 0)
3611                  (term-process-pager))
3612                 (t
3613                  (term-adjust-current-row-cache (- scroll-needed))
3614                  (term-vertical-motion scroll-needed)
3615                  (set-marker term-home-marker (point))))
3616           (goto-char save-point)
3617           (set-marker save-point nil))))
3618   down)
3619
3620 (defun term-down (down &optional check-for-scroll)
3621   "Move down DOWN screen lines vertically."
3622   (let ((start-column (term-horizontal-column)))
3623     (when (and check-for-scroll (or term-scroll-with-delete term-pager-count))
3624       (setq down (term-handle-scroll down)))
3625     (unless (and (= term-current-row 0) (< down 0))
3626       (term-adjust-current-row-cache down)
3627       (when (or (/= (point) (point-max)) (< down 0))
3628         (setq down (- down (term-vertical-motion down)))))
3629     (cond ((> down 0)
3630            ;; Extend buffer with extra blank lines if needed.
3631            (term-insert-char ?\n down)
3632            (setq term-current-column 0)
3633            (setq term-start-line-column 0))
3634           (t
3635            (when (= term-current-row 0)
3636              ;; Insert lines if at the beginning.
3637              (save-excursion (term-insert-char ?\n (- down)))
3638              (save-excursion
3639                (let (p)
3640                  ;; Delete lines from the end.
3641                  (forward-line term-height)
3642                  (setq p (point))
3643                  (forward-line (- down))
3644                  (delete-region p (point)))))
3645            (setq term-current-column 0)
3646            (setq term-start-line-column (current-column))))
3647     (when start-column
3648       (term-move-columns start-column))))
3649
3650 ;; Assuming point is at the beginning of a screen line,
3651 ;; if the line above point wraps around, add a ?\n to undo the wrapping.
3652 ;; FIXME:  Probably should be called more than it is.
3653 (defun term-unwrap-line ()
3654   (if (not (bolp)) (insert-before-markers ?\n)))
3655
3656 (defun term-erase-in-line (kind)
3657   (if (= kind 1) ;; erase left of point
3658       (let ((cols (term-horizontal-column)) (saved-point (point)))
3659         (term-vertical-motion 0)
3660         (delete-region (point) saved-point)
3661         (term-insert-char ?  cols)))
3662   (if (not (eq kind 1)) ;; erase right of point
3663       (let ((saved-point (point))
3664             (wrapped (and (zerop (term-horizontal-column))
3665                           (not (zerop (term-current-column))))))
3666         (term-vertical-motion 1)
3667         (delete-region saved-point (point))
3668         ;; wrapped is true if we're at the beginning of screen line,
3669         ;; but not a buffer line.  If we delete the current screen line
3670         ;; that will make the previous line no longer wrap, and (because
3671         ;; of the way Emacs display works) point will be at the end of
3672         ;; the previous screen line rather then the beginning of the
3673         ;; current one.  To avoid that, we make sure that current line
3674         ;; contain a space, to force the previous line to continue to wrap.
3675         ;; We could do this always, but it seems preferable to not add the
3676         ;; extra space when wrapped is false.
3677         (if wrapped
3678             (insert ? ))
3679         (insert ?\n)
3680         (put-text-property saved-point (point) 'face 'default)
3681         (goto-char saved-point))))
3682
3683 (defun term-erase-in-display (kind)
3684   "Erases (that is blanks out) part of the window.
3685 If KIND is 0, erase from (point) to (point-max);
3686 if KIND is 1, erase from home to point; else erase from home to point-max.
3687 Should only be called when point is at the start of a screen line."
3688   (term-handle-deferred-scroll)
3689   (cond ((eq term-terminal-parameter 0)
3690          (delete-region (point) (point-max))
3691          (term-unwrap-line))
3692         ((let ((row (term-current-row))
3693               (col (term-horizontal-column))
3694               (start-region term-home-marker)
3695               (end-region (if (eq kind 1) (point) (point-max))))
3696            (delete-region start-region end-region)
3697            (term-unwrap-line)
3698            (when (eq kind 1)
3699              (term-insert-char ?\n row))
3700            (setq term-current-column nil)
3701            (setq term-current-row nil)
3702            (term-goto row col)))))
3703
3704 (defun term-delete-chars (count)
3705   (let ((save-point (point)))
3706     (term-vertical-motion 1)
3707     (term-unwrap-line)
3708     (goto-char save-point)
3709     (move-to-column (+ (term-current-column) count) t)
3710     (delete-region save-point (point))))
3711
3712 ;;; Insert COUNT spaces after point, but do not change any of
3713 ;;; following screen lines.  Hence we may have to delete characters
3714 ;;; at the end of this screen line to make room.
3715
3716 (defun term-insert-spaces (count)
3717   (let ((save-point (point)) (save-eol) (point-at-eol))
3718     (term-vertical-motion 1)
3719     (if (bolp)
3720         (backward-char))
3721     (setq save-eol (point))
3722     (save-excursion
3723       (end-of-line)
3724       (setq point-at-eol (point)))
3725     (move-to-column (+ (term-start-line-column) (- term-width count)) t)
3726     ;; If move-to-column extends the current line it will use the face
3727     ;; from the last character on the line, set the face for the chars
3728     ;; to default.
3729     (when (> (point) (point-at-eol))
3730       (put-text-property point-at-eol (point) 'face 'default))
3731     (if (> save-eol (point))
3732         (delete-region (point) save-eol))
3733     (goto-char save-point)
3734     (term-insert-char ?  count)
3735     (goto-char save-point)))
3736
3737 (defun term-delete-lines (lines)
3738   (let ((start (point))
3739         (save-current-column term-current-column)
3740         (save-start-line-column term-start-line-column)
3741         (save-current-row (term-current-row)))
3742     (term-down lines)
3743     (delete-region start (point))
3744     (term-down (- term-scroll-end save-current-row lines))
3745     (term-insert-char ?\n lines)
3746     (setq term-current-column save-current-column)
3747     (setq term-start-line-column save-start-line-column)
3748     (setq term-current-row save-current-row)
3749     (goto-char start)))
3750
3751 (defun term-insert-lines (lines)
3752   (let ((start (point))
3753         (start-deleted)
3754         (save-current-column term-current-column)
3755         (save-start-line-column term-start-line-column)
3756         (save-current-row (term-current-row)))
3757     (term-down (- term-scroll-end save-current-row lines))
3758     (setq start-deleted (point))
3759     (term-down lines)
3760     (delete-region start-deleted (point))
3761     (goto-char start)
3762     (setq term-current-column save-current-column)
3763     (setq term-start-line-column save-start-line-column)
3764     (setq term-current-row save-current-row)
3765     (term-insert-char ?\n lines)
3766     (goto-char start)))
3767 \f
3768 (defun term-start-output-log (name)
3769   "Record raw inferior process output in a buffer."
3770   (interactive (list (if term-log-buffer
3771                          nil
3772                        (read-buffer "Record output in buffer: "
3773                                     (format "%s output-log"
3774                                             (buffer-name (current-buffer)))
3775                                     nil))))
3776   (if (or (null name) (equal name ""))
3777       (progn (setq term-log-buffer nil)
3778              (message "Output logging off."))
3779     (if (get-buffer name)
3780         nil
3781       (save-excursion
3782         (set-buffer (get-buffer-create name))
3783         (fundamental-mode)
3784         (buffer-disable-undo (current-buffer))
3785         (erase-buffer)))
3786     (setq term-log-buffer (get-buffer name))
3787     (message "Recording terminal emulator output into buffer \"%s\""
3788              (buffer-name term-log-buffer))))
3789
3790 (defun term-stop-output-log ()
3791   "Discontinue raw inferior process logging."
3792   (interactive)
3793   (term-start-output-log nil))
3794
3795 (defun term-show-maximum-output ()
3796   "Put the end of the buffer at the bottom of the window."
3797   (interactive)
3798   (goto-char (point-max))
3799   (recenter -1))
3800 \f
3801 ;;; Do the user's customisation...
3802
3803 (defvar term-load-hook nil
3804   "This hook is run when term is loaded in.
3805 This is a good place to put keybindings.")
3806
3807 (run-hooks 'term-load-hook)
3808
3809 \f
3810 ;;; Filename/command/history completion in a buffer
3811 ;;; ===========================================================================
3812 ;;; Useful completion functions, courtesy of the Ergo group.
3813
3814 ;;; Six commands:
3815 ;;; term-dynamic-complete               Complete or expand command, filename,
3816 ;;;                                     history at point.
3817 ;;; term-dynamic-complete-filename      Complete filename at point.
3818 ;;; term-dynamic-list-filename-completions List completions in help buffer.
3819 ;;; term-replace-by-expanded-filename   Expand and complete filename at point;
3820 ;;;                                     replace with expanded/completed name.
3821 ;;; term-dynamic-simple-complete        Complete stub given candidates.
3822
3823 ;;; These are not installed in the term-mode keymap.  But they are
3824 ;;; available for people who want them.  Shell-mode installs them:
3825 ;;; (define-key shell-mode-map "\t" 'term-dynamic-complete)
3826 ;;; (define-key shell-mode-map "\M-?"
3827 ;;;             'term-dynamic-list-filename-completions)))
3828 ;;;
3829 ;;; Commands like this are fine things to put in load hooks if you
3830 ;;; want them present in specific modes.
3831
3832 (defvar term-completion-autolist nil
3833   "*If non-nil, automatically list possibilities on partial completion.
3834 This mirrors the optional behavior of tcsh.")
3835
3836 (defvar term-completion-addsuffix t
3837   "*If non-nil, add a `/' to completed directories, ` ' to file names.
3838 If a cons pair, it should be of the form (DIRSUFFIX . FILESUFFIX) where
3839 DIRSUFFIX and FILESUFFIX are strings added on unambiguous or exact
3840 completion.  This mirrors the optional behavior of tcsh.")
3841
3842 (defvar term-completion-recexact nil
3843   "*If non-nil, use shortest completion if characters cannot be added.
3844 This mirrors the optional behavior of tcsh.
3845
3846 A non-nil value is useful if `term-completion-autolist' is non-nil too.")
3847
3848 (defvar term-completion-fignore nil
3849   "*List of suffixes to be disregarded during file completion.
3850 This mirrors the optional behavior of bash and tcsh.
3851
3852 Note that this applies to `term-dynamic-complete-filename' only.")
3853
3854 (defvar term-file-name-prefix ""
3855   "Prefix prepended to absolute file names taken from process input.
3856 This is used by term's and shell's completion functions, and by shell's
3857 directory tracking functions.")
3858
3859
3860 (defun term-directory (directory)
3861   ;; Return expanded DIRECTORY, with `term-file-name-prefix' if absolute.
3862   (expand-file-name (if (file-name-absolute-p directory)
3863                         (concat term-file-name-prefix directory)
3864                       directory)))
3865
3866
3867 (defun term-word (word-chars)
3868   "Return the word of WORD-CHARS at point, or nil if none is found.
3869 Word constituents are considered to be those in WORD-CHARS, which is like the
3870 inside of a \"[...]\" (see `skip-chars-forward')."
3871   (save-excursion
3872     (let ((limit (point))
3873           (word (concat "[" word-chars "]"))
3874           (non-word (concat "[^" word-chars "]")))
3875       (if (re-search-backward non-word nil 'move)
3876           (forward-char 1))
3877       ;; Anchor the search forwards.
3878       (if (or (eolp) (looking-at non-word))
3879           nil
3880         (re-search-forward (concat word "+") limit)
3881         (buffer-substring (match-beginning 0) (match-end 0))))))
3882
3883
3884 (defun term-match-partial-filename ()
3885   "Return the filename at point, or nil if none is found.
3886 Environment variables are substituted.  See `term-word'."
3887   (let ((filename (term-word "~/A-Za-z0-9+@:_.$#,={}-")))
3888     (and filename (substitute-in-file-name filename))))
3889
3890
3891 (defun term-dynamic-complete ()
3892   "Dynamically perform completion at point.
3893 Calls the functions in `term-dynamic-complete-functions' to perform
3894 completion until a function returns non-nil, at which point completion is
3895 assumed to have occurred."
3896   (interactive)
3897   (let ((functions term-dynamic-complete-functions))
3898     (while (and functions (null (funcall (car functions))))
3899       (setq functions (cdr functions)))))
3900
3901
3902 (defun term-dynamic-complete-filename ()
3903   "Dynamically complete the filename at point.
3904 Completes if after a filename.  See `term-match-partial-filename' and
3905 `term-dynamic-complete-as-filename'.
3906 This function is similar to `term-replace-by-expanded-filename', except that
3907 it won't change parts of the filename already entered in the buffer; it just
3908 adds completion characters to the end of the filename.  A completions listing
3909 may be shown in a help buffer if completion is ambiguous.
3910
3911 Completion is dependent on the value of `term-completion-addsuffix',
3912 `term-completion-recexact' and `term-completion-fignore', and the timing of
3913 completions listing is dependent on the value of `term-completion-autolist'.
3914
3915 Returns t if successful."
3916   (interactive)
3917   (if (term-match-partial-filename)
3918       (prog2 (or (eq (selected-window) (minibuffer-window))
3919                  (message "Completing file name..."))
3920           (term-dynamic-complete-as-filename))))
3921
3922 (defun term-dynamic-complete-as-filename ()
3923   "Dynamically complete at point as a filename.
3924 See `term-dynamic-complete-filename'.  Returns t if successful."
3925   (let* ((completion-ignore-case nil)
3926          (completion-ignored-extensions term-completion-fignore)
3927          (success t)
3928          (dirsuffix (cond ((not term-completion-addsuffix) "")
3929                           ((not (consp term-completion-addsuffix)) "/")
3930                           (t (car term-completion-addsuffix))))
3931          (filesuffix (cond ((not term-completion-addsuffix) "")
3932                            ((not (consp term-completion-addsuffix)) " ")
3933                            (t (cdr term-completion-addsuffix))))
3934          (filename (or (term-match-partial-filename) ""))
3935          (pathdir (file-name-directory filename))
3936          (pathnondir (file-name-nondirectory filename))
3937          (directory (if pathdir (term-directory pathdir) default-directory))
3938          (completion (file-name-completion pathnondir directory))
3939          (mini-flag (eq (selected-window) (minibuffer-window))))
3940     (cond ((null completion)
3941            (message "No completions of %s" filename)
3942            (setq success nil))
3943           ((eq completion t)            ; Means already completed "file".
3944            (if term-completion-addsuffix (insert " "))
3945            (or mini-flag (message "Sole completion")))
3946           ((string-equal completion "") ; Means completion on "directory/".
3947            (term-dynamic-list-filename-completions))
3948           (t                            ; Completion string returned.
3949            (let ((file (concat (file-name-as-directory directory) completion)))
3950              (insert (substring (directory-file-name completion)
3951                                 (length pathnondir)))
3952              (cond ((symbolp (file-name-completion completion directory))
3953                     ;; We inserted a unique completion.
3954                     (insert (if (file-directory-p file) dirsuffix filesuffix))
3955                     (or mini-flag (message "Completed")))
3956                    ((and term-completion-recexact term-completion-addsuffix
3957                          (string-equal pathnondir completion)
3958                          (file-exists-p file))
3959                     ;; It's not unique, but user wants shortest match.
3960                     (insert (if (file-directory-p file) dirsuffix filesuffix))
3961                     (or mini-flag (message "Completed shortest")))
3962                    ((or term-completion-autolist
3963                         (string-equal pathnondir completion))
3964                     ;; It's not unique, list possible completions.
3965                     (term-dynamic-list-filename-completions))
3966                    (t
3967                     (or mini-flag (message "Partially completed")))))))
3968     success))
3969
3970
3971 (defun term-replace-by-expanded-filename ()
3972   "Dynamically expand and complete the filename at point.
3973 Replace the filename with an expanded, canonicalized and completed replacement.
3974 \"Expanded\" means environment variables (e.g., $HOME) and `~'s are replaced
3975 with the corresponding directories.  \"Canonicalized\" means `..'  and `.' are
3976 removed, and the filename is made absolute instead of relative.  For expansion
3977 see `expand-file-name' and `substitute-in-file-name'.  For completion see
3978 `term-dynamic-complete-filename'."
3979   (interactive)
3980   (replace-match (expand-file-name (term-match-partial-filename)) t t)
3981   (term-dynamic-complete-filename))
3982
3983
3984 (defun term-dynamic-simple-complete (stub candidates)
3985   "Dynamically complete STUB from CANDIDATES list.
3986 This function inserts completion characters at point by completing STUB from
3987 the strings in CANDIDATES.  A completions listing may be shown in a help buffer
3988 if completion is ambiguous.
3989
3990 Returns nil if no completion was inserted.
3991 Returns `sole' if completed with the only completion match.
3992 Returns `shortest' if completed with the shortest of the completion matches.
3993 Returns `partial' if completed as far as possible with the completion matches.
3994 Returns `listed' if a completion listing was shown.
3995
3996 See also `term-dynamic-complete-filename'."
3997   (let* ((completion-ignore-case nil)
3998          (candidates (mapcar (function (lambda (x) (list x))) candidates))
3999          (completions (all-completions stub candidates)))
4000     (cond ((null completions)
4001            (message "No completions of %s" stub)
4002            nil)
4003           ((= 1 (length completions))   ; Gotcha!
4004            (let ((completion (car completions)))
4005              (if (string-equal completion stub)
4006                  (message "Sole completion")
4007                (insert (substring completion (length stub)))
4008                (message "Completed"))
4009              (if term-completion-addsuffix (insert " "))
4010              'sole))
4011           (t                            ; There's no unique completion.
4012            (let ((completion (try-completion stub candidates)))
4013              ;; Insert the longest substring.
4014              (insert (substring completion (length stub)))
4015              (cond ((and term-completion-recexact term-completion-addsuffix
4016                          (string-equal stub completion)
4017                          (member completion completions))
4018                     ;; It's not unique, but user wants shortest match.
4019                     (insert " ")
4020                     (message "Completed shortest")
4021                     'shortest)
4022                    ((or term-completion-autolist
4023                         (string-equal stub completion))
4024                     ;; It's not unique, list possible completions.
4025                     (term-dynamic-list-completions completions)
4026                     'listed)
4027                    (t
4028                     (message "Partially completed")
4029                     'partial)))))))
4030
4031
4032 (defun term-dynamic-list-filename-completions ()
4033   "List in help buffer possible completions of the filename at point."
4034   (interactive)
4035   (let* ((completion-ignore-case nil)
4036          (filename (or (term-match-partial-filename) ""))
4037          (pathdir (file-name-directory filename))
4038          (pathnondir (file-name-nondirectory filename))
4039          (directory (if pathdir (term-directory pathdir) default-directory))
4040          (completions (file-name-all-completions pathnondir directory)))
4041     (if completions
4042         (term-dynamic-list-completions completions)
4043       (message "No completions of %s" filename))))
4044
4045
4046 (defun term-dynamic-list-completions (completions)
4047   "List in help buffer sorted COMPLETIONS.
4048 Typing SPC flushes the help buffer."
4049   (let ((conf (current-window-configuration)))
4050     (with-output-to-temp-buffer "*Completions*"
4051       (display-completion-list (sort completions 'string-lessp)))
4052     (message "Hit space to flush")
4053     (let (key first)
4054       (if (save-excursion
4055             (set-buffer (get-buffer "*Completions*"))
4056             (setq key (read-key-sequence nil)
4057                   first (aref key 0))
4058             (and (consp first)
4059                  (eq (window-buffer (posn-window (event-start first)))
4060                      (get-buffer "*Completions*"))
4061                  (eq (key-binding key) 'mouse-choose-completion)))
4062           ;; If the user does mouse-choose-completion with the mouse,
4063           ;; execute the command, then delete the completion window.
4064           (progn
4065             (mouse-choose-completion first)
4066             (set-window-configuration conf))
4067         (if (eq first ?\s)
4068             (set-window-configuration conf)
4069           (setq unread-command-events (listify-key-sequence key)))))))
4070
4071 ;;; I need a make-term that doesn't surround with *s -mm
4072 (defun term-ansi-make-term (name program &optional startfile &rest switches)
4073 "Make a term process NAME in a buffer, running PROGRAM.
4074 The name of the buffer is NAME.
4075 If there is already a running process in that buffer, it is not restarted.
4076 Optional third arg STARTFILE is the name of a file to send the contents of to
4077 the process.  Any more args are arguments to PROGRAM."
4078   (let ((buffer (get-buffer-create name )))
4079     ;; If no process, or nuked process, crank up a new one and put buffer in
4080     ;; term mode.  Otherwise, leave buffer and existing process alone.
4081     (cond ((not (term-check-proc buffer))
4082            (save-excursion
4083              (set-buffer buffer)
4084              (term-mode)) ; Install local vars, mode, keymap, ...
4085            (term-exec buffer name program startfile switches)))
4086     buffer))
4087
4088 (defvar term-ansi-buffer-name nil)
4089 (defvar term-ansi-default-program nil)
4090 (defvar term-ansi-buffer-base-name nil)
4091
4092 ;;;###autoload
4093 (defun ansi-term (program &optional new-buffer-name)
4094   "Start a terminal-emulator in a new buffer."
4095   (interactive (list (read-from-minibuffer "Run program: "
4096                                            (or explicit-shell-file-name
4097                                                (getenv "ESHELL")
4098                                                (getenv "SHELL")
4099                                                "/bin/sh"))))
4100
4101   ;; Pick the name of the new buffer.
4102   (setq term-ansi-buffer-name
4103         (if new-buffer-name
4104             new-buffer-name
4105           (if term-ansi-buffer-base-name
4106               (if (eq term-ansi-buffer-base-name t)
4107                   (file-name-nondirectory program)
4108                 term-ansi-buffer-base-name)
4109             "ansi-term")))
4110
4111   (setq term-ansi-buffer-name (concat "*" term-ansi-buffer-name "*"))
4112
4113   ;; In order to have more than one term active at a time
4114   ;; I'd like to have the term names have the *term-ansi-term<?>* form,
4115   ;; for now they have the *term-ansi-term*<?> form but we'll see...
4116
4117   (setq term-ansi-buffer-name (generate-new-buffer-name term-ansi-buffer-name))
4118   (setq term-ansi-buffer-name (term-ansi-make-term term-ansi-buffer-name program))
4119
4120   (set-buffer term-ansi-buffer-name)
4121   (term-mode)
4122   (term-char-mode)
4123
4124 ;; I wanna have find-file on C-x C-f -mm
4125 ;; your mileage may definitely vary, maybe it's better to put this in your
4126 ;; .emacs ...
4127
4128   (term-set-escape-char ?\C-x)
4129
4130   (switch-to-buffer term-ansi-buffer-name))
4131
4132 \f
4133 ;;; Converting process modes to use term mode
4134 ;;; ===========================================================================
4135 ;;; Renaming variables
4136 ;;; Most of the work is renaming variables and functions.  These are the common
4137 ;;; ones:
4138 ;;; Local variables:
4139 ;;;     last-input-start        term-last-input-start
4140 ;;;     last-input-end          term-last-input-end
4141 ;;;     shell-prompt-pattern    term-prompt-regexp
4142 ;;;     shell-set-directory-error-hook <no equivalent>
4143 ;;; Miscellaneous:
4144 ;;;     shell-set-directory     <unnecessary>
4145 ;;;     shell-mode-map          term-mode-map
4146 ;;; Commands:
4147 ;;;     shell-send-input        term-send-input
4148 ;;;     shell-send-eof          term-delchar-or-maybe-eof
4149 ;;;     kill-shell-input        term-kill-input
4150 ;;;     interrupt-shell-subjob  term-interrupt-subjob
4151 ;;;     stop-shell-subjob       term-stop-subjob
4152 ;;;     quit-shell-subjob       term-quit-subjob
4153 ;;;     kill-shell-subjob       term-kill-subjob
4154 ;;;     kill-output-from-shell  term-kill-output
4155 ;;;     show-output-from-shell  term-show-output
4156 ;;;     copy-last-shell-input   Use term-previous-input/term-next-input
4157 ;;;
4158 ;;; SHELL-SET-DIRECTORY is gone, its functionality taken over by
4159 ;;; SHELL-DIRECTORY-TRACKER, the shell mode's term-input-filter-functions.
4160 ;;; Term mode does not provide functionality equivalent to
4161 ;;; shell-set-directory-error-hook; it is gone.
4162 ;;;
4163 ;;; term-last-input-start is provided for modes which want to munge
4164 ;;; the buffer after input is sent, perhaps because the inferior
4165 ;;; insists on echoing the input.  The LAST-INPUT-START variable in
4166 ;;; the old shell package was used to implement a history mechanism,
4167 ;;; but you should think twice before using term-last-input-start
4168 ;;; for this; the input history ring often does the job better.
4169 ;;;
4170 ;;; If you are implementing some process-in-a-buffer mode, called foo-mode, do
4171 ;;; *not* create the term-mode local variables in your foo-mode function.
4172 ;;; This is not modular.  Instead, call term-mode, and let *it* create the
4173 ;;; necessary term-specific local variables.  Then create the
4174 ;;; foo-mode-specific local variables in foo-mode.  Set the buffer's keymap to
4175 ;;; be foo-mode-map, and its mode to be foo-mode.  Set the term-mode hooks
4176 ;;; (term-{prompt-regexp, input-filter, input-filter-functions,
4177 ;;; get-old-input) that need to be different from the defaults.  Call
4178 ;;; foo-mode-hook, and you're done.  Don't run the term-mode hook yourself;
4179 ;;; term-mode will take care of it.  The following example, from shell.el,
4180 ;;; is typical:
4181 ;;;
4182 ;;; (defvar shell-mode-map '())
4183 ;;; (cond ((not shell-mode-map)
4184 ;;;        (setq shell-mode-map (copy-keymap term-mode-map))
4185 ;;;        (define-key shell-mode-map "\C-c\C-f" 'shell-forward-command)
4186 ;;;        (define-key shell-mode-map "\C-c\C-b" 'shell-backward-command)
4187 ;;;        (define-key shell-mode-map "\t" 'term-dynamic-complete)
4188 ;;;        (define-key shell-mode-map "\M-?"
4189 ;;;          'term-dynamic-list-filename-completions)))
4190 ;;;
4191 ;;; (defun shell-mode ()
4192 ;;;   (interactive)
4193 ;;;   (term-mode)
4194 ;;;   (setq term-prompt-regexp shell-prompt-pattern)
4195 ;;;   (setq major-mode 'shell-mode)
4196 ;;;   (setq mode-name "Shell")
4197 ;;;   (use-local-map shell-mode-map)
4198 ;;;   (make-local-variable 'shell-directory-stack)
4199 ;;;   (setq shell-directory-stack nil)
4200 ;;;   (add-hook 'term-input-filter-functions 'shell-directory-tracker)
4201 ;;;   (run-mode-hooks 'shell-mode-hook))
4202 ;;;
4203 ;;;
4204 ;;; Completion for term-mode users
4205 ;;;
4206 ;;; For modes that use term-mode, term-dynamic-complete-functions is the
4207 ;;; hook to add completion functions to.  Functions on this list should return
4208 ;;; non-nil if completion occurs (i.e., further completion should not occur).
4209 ;;; You could use term-dynamic-simple-complete to do the bulk of the
4210 ;;; completion job.
4211 \f
4212 (provide 'term)
4213
4214 ;;; arch-tag: eee16bc8-2cd7-4147-9534-a5694752f716
4215 ;;; term.el ends here