lisp/ada.el

   1 ;;; ada.el --- Ada editing support package in GNUlisp.  v1.0
   2
   3 ; Author: Vincent Broman <broman@bugs.nosc.mil>  May 1987.
   4 ; (borrows heavily from Mick Jordan's Modula-2 package for GNU,
   5 ; as modified by Peter Robinson, Michael Schmidt, and Tom Perrine.)
   6
   7 ;; Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 1, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  23 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25 (setq auto-mode-alist (cons (cons "\\.ada$" 'ada-mode) auto-mode-alist))
  26
  27 (defvar ada-mode-syntax-table nil
  28   "Syntax table in use in Ada-mode buffers.")
  29
  30 (let ((table (make-syntax-table)))
  31   (modify-syntax-entry ?_ "_" table)
  32   (modify-syntax-entry ?\# "_" table)
  33   (modify-syntax-entry ?\( "()" table)
  34   (modify-syntax-entry ?\) ")(" table)
  35   (modify-syntax-entry ?$ "." table)
  36   (modify-syntax-entry ?* "." table)
  37   (modify-syntax-entry ?/ "." table)
  38   (modify-syntax-entry ?+ "." table)
  39   (modify-syntax-entry ?- "." table)
  40   (modify-syntax-entry ?= "." table)
  41   (modify-syntax-entry ?\& "." table)
  42   (modify-syntax-entry ?\| "." table)
  43   (modify-syntax-entry ?< "." table)
  44   (modify-syntax-entry ?> "." table)
  45   (modify-syntax-entry ?\[ "." table)
  46   (modify-syntax-entry ?\] "." table)
  47   (modify-syntax-entry ?\{ "." table)
  48   (modify-syntax-entry ?\} "." table)
  49   (modify-syntax-entry ?. "." table)
  50   (modify-syntax-entry ?\\ "." table)
  51   (modify-syntax-entry ?: "." table)
  52   (modify-syntax-entry ?\; "." table)
  53   (modify-syntax-entry ?\' "." table)
  54   (modify-syntax-entry ?\" "\"" table)
  55   (setq ada-mode-syntax-table table))
  56
  57 (defvar ada-mode-map nil
  58   "Keymap used in Ada mode.")
  59
  60 (let ((map (make-sparse-keymap)))
  61   (define-key map "\C-m" 'ada-newline)
  62   (define-key map "\C-?" 'backward-delete-char-untabify)
  63   (define-key map "\C-i" 'ada-tab)
  64   (define-key map "\C-c\C-i" 'ada-untab)
  65   (define-key map "\C-c<" 'ada-backward-to-same-indent)
  66   (define-key map "\C-c>" 'ada-forward-to-same-indent)
  67   (define-key map "\C-ch" 'ada-header)
  68   (define-key map "\C-c(" 'ada-paired-parens)
  69   (define-key map "\C-c-" 'ada-inline-comment)
  70   (define-key map "\C-c\C-a" 'ada-array)
  71   (define-key map "\C-cb" 'ada-exception-block)
  72   (define-key map "\C-cd" 'ada-declare-block)
  73   (define-key map "\C-c\C-e" 'ada-exception)
  74   (define-key map "\C-cc" 'ada-case)
  75   (define-key map "\C-c\C-k" 'ada-package-spec)
  76   (define-key map "\C-ck" 'ada-package-body)
  77   (define-key map "\C-c\C-p" 'ada-procedure-spec)
  78   (define-key map "\C-cp" 'ada-subprogram-body)
  79   (define-key map "\C-c\C-f" 'ada-function-spec)
  80   (define-key map "\C-cf" 'ada-for-loop)
  81   (define-key map "\C-cl" 'ada-loop)
  82   (define-key map "\C-ci" 'ada-if)
  83   (define-key map "\C-cI" 'ada-elsif)
  84   (define-key map "\C-ce" 'ada-else)
  85   (define-key map "\C-c\C-v" 'ada-private)
  86   (define-key map "\C-c\C-r" 'ada-record)
  87   (define-key map "\C-c\C-s" 'ada-subtype)
  88   (define-key map "\C-cs" 'ada-separate)
  89   (define-key map "\C-c\C-t" 'ada-type)
  90   (define-key map "\C-ct" 'ada-tabsize)
  91 ;;    (define-key map "\C-c\C-u" 'ada-use)
  92 ;;    (define-key map "\C-c\C-w" 'ada-with)
  93   (define-key map "\C-cw" 'ada-while-loop)
  94   (define-key map "\C-c\C-w" 'ada-when)
  95   (define-key map "\C-cx" 'ada-exit)
  96   (define-key map "\C-cC" 'ada-compile)
  97   (define-key map "\C-cB" 'ada-bind)
  98   (define-key map "\C-cE" 'ada-find-listing)
  99   (define-key map "\C-cL" 'ada-library-name)
 100   (define-key map "\C-cO" 'ada-options-for-bind)
 101   (setq ada-mode-map map))
 102
 103 (defvar ada-indent 4 "*Value is the number of columns to indent in Ada-Mode.")
 104
 105 (defun ada-mode ()
 106 "This is a mode intended to support program development in Ada.
 107 Most control constructs and declarations of Ada can be inserted in the buffer
 108 by typing Control-C followed by a character mnemonic for the construct.
 109
 110 \\<ada-mode-map>\\[ada-array] array             \\[ada-exception-block]    exception block
 111 \\[ada-exception]  exception      \\[ada-declare-block]    declare block
 112 \\[ada-package-spec]  package spec   \\[ada-package-body]    package body
 113 \\[ada-procedure-spec]  procedure spec \\[ada-subprogram-body]    proc/func body
 114 \\[ada-function-spec]  func spec      \\[ada-for-loop]    for loop
 115                         \\[ada-if]    if
 116                         \\[ada-elsif]    elsif
 117                         \\[ada-else]    else
 118 \\[ada-private]  private        \\[ada-loop]    loop
 119 \\[ada-record]  record         \\[ada-case]    case
 120 \\[ada-subtype]  subtype        \\[ada-separate]    separate
 121 \\[ada-type]  type           \\[ada-tabsize]    tab spacing for indents
 122 \\[ada-when]  when           \\[ada-while]    while
 123                         \\[ada-exit]    exit
 124 \\[ada-paired-parens]    paired parens  \\[ada-inline-comment]    inline comment
 125                         \\[ada-header]    header spec
 126 \\[ada-compile]    compile        \\[ada-bind]    bind
 127 \\[ada-find-listing]    find error list
 128 \\[ada-library-name]    name library   \\[ada-options-for-bind]    options for bind
 129
 130 \\[ada-backward-to-same-indent] and \\[ada-forward-to-same-indent] move backward and forward respectively to the next line
 131 having the same (or lesser) level of indentation.
 132
 133 Variable `ada-indent' controls the number of spaces for indent/undent."
 134   (interactive)
 135   (kill-all-local-variables)
 136   (use-local-map ada-mode-map)
 137   (setq major-mode 'ada-mode)
 138   (setq mode-name "Ada")
 139   (make-local-variable 'comment-column)
 140   (setq comment-column 41)
 141   (make-local-variable 'end-comment-column)
 142   (setq end-comment-column 72)
 143   (set-syntax-table ada-mode-syntax-table)
 144   (make-local-variable 'paragraph-start)
 145   (setq paragraph-start (concat "^$\\|" page-delimiter))
 146   (make-local-variable 'paragraph-separate)
 147   (setq paragraph-separate paragraph-start)
 148   (make-local-variable 'paragraph-ignore-fill-prefix)
 149   (setq paragraph-ignore-fill-prefix t)
 150 ;  (make-local-variable 'indent-line-function)
 151 ;  (setq indent-line-function 'c-indent-line)
 152   (make-local-variable 'require-final-newline)
 153   (setq require-final-newline t)
 154   (make-local-variable 'comment-start)
 155   (setq comment-start "--")
 156   (make-local-variable 'comment-end)
 157   (setq comment-end "")
 158   (make-local-variable 'comment-column)
 159   (setq comment-column 41)
 160   (make-local-variable 'comment-start-skip)
 161   (setq comment-start-skip "--+ *")
 162   (make-local-variable 'comment-indent-hook)
 163   (setq comment-indent-hook 'c-comment-indent)
 164   (make-local-variable 'parse-sexp-ignore-comments)
 165   (setq parse-sexp-ignore-comments t)
 166   (run-hooks 'ada-mode-hook))
 167
 168 (defun ada-tabsize (s)
 169   "Changes spacing used for indentation.
 170 The prefix argument is used as the new spacing."
 171   (interactive "p")
 172   (setq ada-indent s))
 173
 174 (defun ada-newline ()
 175   "Start new line and indent to current tab stop."
 176   (interactive)
 177   (let ((ada-cc (current-indentation)))
 178     (newline)
 179     (indent-to ada-cc)))
 180
 181 (defun ada-tab ()
 182   "Indent to next tab stop."
 183   (interactive)
 184   (indent-to (* (1+ (/ (current-indentation) ada-indent)) ada-indent)))
 185
 186 (defun ada-untab ()
 187   "Delete backwards to previous tab stop."
 188   (interactive)
 189   (backward-delete-char-untabify ada-indent nil))
 190
 191 (defun ada-go-to-this-indent (step indent-level)
 192   "Move point repeatedly by STEP lines until the current line has
 193 given INDENT-LEVEL or less, or the start or end of the buffer is reached.
 194 Ignore blank lines, statement labels and block or loop names."
 195   (while (and
 196           (zerop (forward-line step))
 197           (or (looking-at "^[   ]*$")
 198               (looking-at "^[   ]*--")
 199               (looking-at "^<<[A-Za-z0-9_]+>>")
 200               (looking-at "^[A-Za-z0-9_]+:")
 201               (> (current-indentation) indent-level)))
 202     nil))
 203
 204 (defun ada-backward-to-same-indent ()
 205   "Move point backwards to nearest line with same indentation or less.
 206 If not found, point is left at the top of the buffer."
 207   (interactive)
 208   (ada-go-to-this-indent -1 (current-indentation))
 209   (back-to-indentation))
 210
 211 (defun ada-forward-to-same-indent ()
 212   "Move point forwards to nearest line with same indentation or less.
 213 If not found, point is left at the start of the last line in the buffer."
 214   (interactive)
 215   (ada-go-to-this-indent 1 (current-indentation))
 216   (back-to-indentation))
 217
 218 (defun ada-array ()
 219   "Insert array type definition.  Uses the minibuffer to prompt
 220 for component type and index subtypes."
 221   (interactive)
 222   (insert "array ()")
 223   (backward-char)
 224   (insert (read-string "index subtype[s]: "))
 225   (end-of-line)
 226   (insert " of ;")
 227   (backward-char)
 228   (insert (read-string "component-type: "))
 229   (end-of-line))
 230
 231 (defun ada-case ()
 232   "Build skeleton case statement.
 233 Uses the minibuffer to prompt for the selector expression.
 234 Also builds the first when clause."
 235   (interactive)
 236   (insert "case ")
 237   (insert (read-string "selector expression: ") " is")
 238   (ada-newline)
 239   (ada-newline)
 240   (insert "end case;")
 241   (end-of-line 0)
 242   (ada-tab)
 243   (ada-tab)
 244   (ada-when))
 245
 246 (defun ada-declare-block ()
 247   "Insert a block with a declare part.
 248 Indent for the first declaration."
 249   (interactive)
 250   (let ((ada-block-name (read-string "[block name]: ")))
 251     (insert "declare")
 252     (cond
 253      ( (not (string-equal ada-block-name ""))
 254        (beginning-of-line)
 255        (open-line 1)
 256        (insert ada-block-name ":")
 257        (next-line 1)
 258        (end-of-line)))
 259     (ada-newline)
 260     (ada-newline)
 261     (insert "begin")
 262     (ada-newline)
 263     (ada-newline)
 264     (if (string-equal ada-block-name "")
 265         (insert "end;")
 266       (insert "end " ada-block-name ";"))
 267     )
 268   (end-of-line -2)
 269   (ada-tab))
 270
 271 (defun ada-exception-block ()
 272   "Insert a block with an exception part.
 273 Indent for the first line of code."
 274   (interactive)
 275   (let ((block-name (read-string "[block name]: ")))
 276     (insert "begin")
 277     (cond
 278      ( (not (string-equal block-name ""))
 279        (beginning-of-line)
 280        (open-line 1)
 281        (insert block-name ":")
 282        (next-line 1)
 283        (end-of-line)))
 284     (ada-newline)
 285     (ada-newline)
 286     (insert "exception")
 287     (ada-newline)
 288     (ada-newline)
 289     (cond
 290      ( (string-equal block-name "")
 291        (insert "end;"))
 292      ( t
 293        (insert "end " block-name ";")))
 294     )
 295   (end-of-line -2)
 296   (ada-tab))
 297
 298 (defun ada-exception ()
 299   "Insert an indented exception part into a block."
 300   (interactive)
 301   (ada-untab)
 302   (insert "exception")
 303   (ada-newline)
 304   (ada-tab))
 305
 306 (defun ada-else ()
 307   "Add an else clause inside an if-then-end-if clause."
 308   (interactive)
 309   (ada-untab)
 310   (insert "else")
 311   (ada-newline)
 312   (ada-tab))
 313
 314 (defun ada-exit ()
 315   "Insert an exit statement, prompting for loop name and condition."
 316   (interactive)
 317   (insert "exit")
 318   (let ((ada-loop-name (read-string "[name of loop to exit]: ")))
 319     (if (not (string-equal ada-loop-name "")) (insert " " ada-loop-name)))
 320   (let ((ada-exit-condition (read-string "[exit condition]: ")))
 321     (if (not (string-equal ada-exit-condition ""))
 322         (if (string-match "^ *[Ww][Hh][Ee][Nn] +" ada-exit-condition)
 323             (insert " " ada-exit-condition)
 324           (insert " when " ada-exit-condition))))
 325   (insert ";"))
 326
 327 (defun ada-when ()
 328   "Start a case statement alternative with a when clause."
 329   (interactive)
 330   (ada-untab)     ; we were indented in code for the last alternative.
 331   (insert "when ")
 332   (insert (read-string "'|'-delimited choice list: ") " =>")
 333   (ada-newline)
 334   (ada-tab))
 335
 336 (defun ada-for-loop ()
 337   "Build a skeleton for-loop statement, prompting for the loop parameters."
 338   (interactive)
 339   (insert "for ")
 340   (let* ((ada-loop-name (read-string "[loop name]: "))
 341          (ada-loop-is-named (not (string-equal ada-loop-name ""))))
 342     (if ada-loop-is-named
 343         (progn
 344           (beginning-of-line)
 345           (open-line 1)
 346           (insert ada-loop-name ":")
 347           (next-line 1)
 348           (end-of-line 1)))
 349     (insert (read-string "loop variable: ") " in ")
 350     (insert (read-string "range: ") " loop")
 351     (ada-newline)
 352     (ada-newline)
 353     (insert "end loop")
 354     (if ada-loop-is-named (insert " " ada-loop-name))
 355     (insert ";"))
 356   (end-of-line 0)
 357   (ada-tab))
 358
 359 (defun ada-header ()
 360   "Insert a comment block containing the module title, author, etc."
 361   (interactive)
 362   (insert "--\n--  Title: \t")
 363   (insert (read-string "Title: "))
 364   (insert "\n--  Created:\t" (current-time-string))
 365   (insert "\n--  Author: \t" (user-full-name))
 366   (insert "\n--\t\t<" (user-login-name) "@" (system-name) ">\n--\n"))
 367
 368 (defun ada-if ()
 369   "Insert skeleton if statment, prompting for a boolean-expression."
 370   (interactive)
 371   (insert "if ")
 372   (insert (read-string "condition: ") " then")
 373   (ada-newline)
 374   (ada-newline)
 375   (insert "end if;")
 376   (end-of-line 0)
 377   (ada-tab))
 378
 379 (defun ada-elsif ()
 380   "Add an elsif clause to an if statement, prompting for the boolean-expression."
 381   (interactive)
 382   (ada-untab)
 383   (insert "elsif ")
 384   (insert (read-string "condition: ") " then")
 385   (ada-newline)
 386   (ada-tab))
 387
 388 (defun ada-loop ()
 389   "Insert a skeleton loop statement.  exit statement added by hand."
 390   (interactive)
 391   (insert "loop ")
 392   (let* ((ada-loop-name (read-string "[loop name]: "))
 393          (ada-loop-is-named (not (string-equal ada-loop-name ""))))
 394     (if ada-loop-is-named
 395         (progn
 396           (beginning-of-line)
 397           (open-line 1)
 398           (insert ada-loop-name ":")
 399           (forward-line 1)
 400           (end-of-line 1)))
 401     (ada-newline)
 402     (ada-newline)
 403     (insert "end loop")
 404     (if ada-loop-is-named (insert " " ada-loop-name))
 405     (insert ";"))
 406   (end-of-line 0)
 407   (ada-tab))
 408
 409 (defun ada-package-spec ()
 410   "Insert a skeleton package specification."
 411   (interactive)
 412   (insert "package ")
 413   (let ((ada-package-name (read-string "package name: " )))
 414     (insert ada-package-name " is")
 415     (ada-newline)
 416     (ada-newline)
 417     (insert "end " ada-package-name ";")
 418     (end-of-line 0)
 419     (ada-tab)))
 420
 421 (defun ada-package-body ()
 422   "Insert a skeleton package body --  includes a begin statement."
 423   (interactive)
 424   (insert "package body ")
 425   (let ((ada-package-name (read-string "package name: " )))
 426     (insert ada-package-name " is")
 427     (ada-newline)
 428     (ada-newline)
 429     (insert "begin")
 430     (ada-newline)
 431     (insert "end " ada-package-name ";")
 432     (end-of-line -1)
 433     (ada-tab)))
 434
 435 (defun ada-private ()
 436   "Undent and start a private section of a package spec. Reindent."
 437   (interactive)
 438   (ada-untab)
 439   (insert "private")
 440   (ada-newline)
 441   (ada-tab))
 442
 443 (defun ada-get-arg-list ()
 444   "Read from the user a procedure or function argument list.
 445 Add parens unless arguments absent, and insert into buffer.
 446 Individual arguments are arranged vertically if entered one at a time.
 447 Arguments ending with `;' are presumed single and stacked."
 448   (insert " (")
 449   (let ((ada-arg-indent (current-column))
 450         (ada-args (read-string "[arguments]: ")))
 451     (if (string-equal ada-args "")
 452         (backward-delete-char 2)
 453       (progn
 454         (while (string-match ";$" ada-args)
 455           (insert ada-args)
 456           (newline)
 457           (indent-to ada-arg-indent)
 458           (setq ada-args (read-string "next argument: ")))
 459         (insert ada-args ")")))))
 460
 461 (defun ada-function-spec ()
 462   "Insert a function specification.  Prompts for name and arguments."
 463   (interactive)
 464   (insert "function ")
 465   (insert (read-string "function name: "))
 466   (ada-get-arg-list)
 467   (insert " return ")
 468   (insert (read-string "result type: ")))
 469
 470 (defun ada-procedure-spec ()
 471   "Insert a procedure specification, prompting for its name and arguments."
 472   (interactive)
 473   (insert "procedure ")
 474   (insert (read-string "procedure name: " ))
 475   (ada-get-arg-list))
 476
 477 (defun get-ada-subprogram-name ()
 478   "Return (without moving point or mark) a pair whose CAR is the name of
 479 the function or procedure whose spec immediately precedes point, and whose
 480 CDR is the column number where the procedure/function keyword was found."
 481   (save-excursion
 482     (let ((ada-proc-indent 0))
 483       (if (re-search-backward
 484   ;;;; Unfortunately, comments are not ignored in this string search.
 485              "[PpFf][RrUu][OoNn][Cc][EeTt][DdIi][UuOo][RrNn]" nil t)
 486           (if (or (looking-at "\\<[Pp][Rr][Oo][Cc][Ee][Dd][Uu][Rr][Ee]\\>")
 487                   (looking-at "\\<[Ff][Uu][Nn][Cc][Tt][Ii][Oo][Nn]\\>"))
 488               (progn
 489                 (setq ada-proc-indent (current-column))
 490                 (forward-word 2)
 491                 (let ((p2 (point)))
 492                   (forward-word -1)
 493                   (cons (buffer-substring (point) p2) ada-proc-indent)))
 494               (get-ada-subprogram-name))
 495            (cons "NAME?" ada-proc-indent)))))
 496
 497 (defun ada-subprogram-body ()
 498   "Insert frame for subprogram body.
 499 Invoke right after `ada-function-spec' or `ada-procedure-spec'."
 500   (interactive)
 501   (insert " is")
 502   (let ((ada-subprogram-name-col (get-ada-subprogram-name)))
 503     (newline)
 504     (indent-to (cdr ada-subprogram-name-col))
 505     (ada-newline)
 506     (insert "begin")
 507     (ada-newline)
 508     (ada-newline)
 509     (insert "end " (car ada-subprogram-name-col) ";"))
 510   (end-of-line -2)
 511   (ada-tab))
 512
 513 (defun ada-separate ()
 514   "Finish a body stub with `is separate'."
 515   (interactive)
 516   (insert " is")
 517   (ada-newline)
 518   (ada-tab)
 519   (insert "separate;")
 520   (ada-newline)
 521   (ada-untab))
 522
 523 ;(defun ada-with ()
 524 ;  "Inserts a with clause, prompting for the list of units depended upon."
 525 ;  (interactive)
 526 ;  (insert "with ")
 527 ;  (insert (read-string "list of units depended upon: ") ";"))
 528 ;
 529 ;(defun ada-use ()
 530 ;  "Inserts a use clause, prompting for the list of packages used."
 531 ;  (interactive)
 532 ;  (insert "use ")
 533 ;  (insert (read-string "list of packages to use: ") ";"))
 534
 535 (defun ada-record ()
 536   "Insert a skeleton record type declaration."
 537   (interactive)
 538   (insert "record")
 539   (ada-newline)
 540   (ada-newline)
 541   (insert "end record;")
 542   (end-of-line 0)
 543   (ada-tab))
 544
 545 (defun ada-subtype ()
 546   "Start insertion of a subtype declaration, prompting for the subtype name."
 547   (interactive)
 548   (insert "subtype " (read-string "subtype name: ") " is ;")
 549   (backward-char)
 550   (message "insert subtype indication."))
 551
 552 (defun ada-type ()
 553   "Start insertion of a type declaration, prompting for the type name."
 554   (interactive)
 555   (insert "type " (read-string "type name: "))
 556   (let ((disc-part (read-string "discriminant specs: ")))
 557     (if (not (string-equal disc-part ""))
 558         (insert "(" disc-part ")")))
 559   (insert " is ")
 560   (message "insert type definition."))
 561
 562 (defun ada-while-loop ()
 563   (interactive)
 564   (insert "while ")
 565   (let* ((ada-loop-name (read-string "loop name: "))
 566          (ada-loop-is-named (not (string-equal ada-loop-name ""))))
 567     (if ada-loop-is-named
 568         (progn
 569           (beginning-of-line)
 570           (open-line 1)
 571           (insert ada-loop-name ":")
 572           (next-line 1)
 573           (end-of-line 1)))
 574     (insert (read-string "entry condition: ") " loop")
 575     (ada-newline)
 576     (ada-newline)
 577     (insert "end loop")
 578     (if ada-loop-is-named (insert " " ada-loop-name))
 579     (insert ";"))
 580   (end-of-line 0)
 581   (ada-tab))
 582
 583 (defun ada-paired-parens ()
 584   "Insert a pair of round parentheses, placing point between them."
 585   (interactive)
 586   (insert "()")
 587   (backward-char))
 588
 589 (defun ada-inline-comment ()
 590   "Start a comment after the end of the line, indented at least
 591 `comment-column' spaces.  If starting after `end-comment-column',
 592 start a new line."
 593   (interactive)
 594   (end-of-line)
 595   (if (> (current-column) end-comment-column) (newline))
 596   (if (< (current-column) comment-column) (indent-to comment-column))
 597   (insert " -- "))
 598
 599 (defun ada-display-comment ()
 600 "Inserts three comment lines, making a display comment."
 601   (interactive)
 602   (insert "--\n-- \n--")
 603   (end-of-line 0))
 604
 605 ;; Much of this is specific to Ada-Ed
 606
 607 (defvar ada-lib-dir-name "lib" "*Current Ada program library directory.")
 608 (defvar ada-bind-opts "" "*Options to supply for binding.")
 609
 610 (defun ada-library-name (ada-lib-name)
 611   "Specify name of Ada library directory for later compilations."
 612   (interactive "DName of Ada library directory: ")
 613   (setq ada-lib-dir-name ada-lib-name))
 614
 615 (defun ada-options-for-bind ()
 616   "Specify options, such as -m and -i, needed for `ada-bind'."
 617   (setq ada-bind-opts (read-string "-m and -i options for `ada-bind': ")))
 618
 619 (defun ada-compile (arg)
 620   "Save the current buffer and compile it into the current program library.
 621 Initialize the library if a prefix arg is given."
 622   (interactive "P")
 623   (let* ((ada-init (if (null arg) "" "-n "))
 624         (ada-source-file (buffer-name)))
 625     (compile
 626      (concat "adacomp " ada-init "-l " ada-lib-dir-name " " ada-source-file))))
 627
 628 (defun ada-find-listing ()
 629   "Find listing file for ada source in current buffer, using other window."
 630   (interactive)
 631   (find-file-other-window (concat (substring (buffer-name) 0 -4) ".lis"))
 632   (search-forward "*** ERROR"))
 633
 634 (defun ada-bind ()
 635   "Bind the current program library, using the current binding options."
 636   (interactive)
 637   (compile (concat "adabind " ada-bind-opts " " ada-lib-dir-name)))
 638
 639 ;;; ada.el ends here