lisp/progmodes/vera-mode.el

   1 ;;; vera-mode.el --- major mode for editing Vera files
   2
   3 ;; Copyright (C) 1997-2012 Free Software Foundation, Inc.
   4
   5 ;; Author:      Reto Zimmermann <reto@gnu.org>
   6 ;; Maintainer:  Reto Zimmermann <reto@gnu.org>
   7 ;; Version:     2.28
   8 ;; Keywords:    languages vera
   9 ;; WWW:         http://www.iis.ee.ethz.ch/~zimmi/emacs/vera-mode.html
  10
  11 ;; Yoni Rabkin <yoni@rabkins.net> contacted the maintainer of this
  12 ;; file on 18/3/2008, and the maintainer agreed that when a bug is
  13 ;; filed in the Emacs bug reporting system against this file, a copy
  14 ;; of the bug report be sent to the maintainer's email address.
  15
  16 (defconst vera-version "2.18"
  17   "Vera Mode version number.")
  18
  19 (defconst vera-time-stamp "2007-06-21"
  20   "Vera Mode time stamp for last update.")
  21
  22 ;; This file is part of GNU Emacs.
  23
  24 ;; GNU Emacs is free software: you can redistribute it and/or modify
  25 ;; it under the terms of the GNU General Public License as published by
  26 ;; the Free Software Foundation, either version 3 of the License, or
  27 ;; (at your option) any later version.
  28
  29 ;; GNU Emacs is distributed in the hope that it will be useful,
  30 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  31 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  32 ;; GNU General Public License for more details.
  33
  34 ;; You should have received a copy of the GNU General Public License
  35 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  36
  37 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  38 ;;; Commentary:
  39 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  40
  41 ;; This package provides a simple Emacs major mode for editing Vera code.
  42 ;; It includes the following features:
  43
  44 ;;   - Syntax highlighting
  45 ;;   - Indentation
  46 ;;   - Word/keyword completion
  47 ;;   - Block commenting
  48 ;;   - Works under GNU Emacs and XEmacs
  49
  50 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  51 ;; Documentation
  52
  53 ;; See comment string of function `vera-mode' or type `C-h m' in Emacs.
  54
  55 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  56 ;; Installation
  57
  58 ;; Prerequisites:  GNU Emacs 20.X/21.X, XEmacs 20.X/21.X
  59
  60 ;; Put `vera-mode.el' into the `site-lisp' directory of your Emacs installation
  61 ;; or into an arbitrary directory that is added to the load path by the
  62 ;; following line in your Emacs start-up file (`.emacs'):
  63
  64 ;;   (setq load-path (cons (expand-file-name "<directory-name>") load-path))
  65
  66 ;; If you already have the compiled `vera-mode.elc' file, put it in the same
  67 ;; directory.  Otherwise, byte-compile the source file:
  68 ;;   Emacs:  M-x byte-compile-file  ->  vera-mode.el
  69 ;;   Unix:   emacs -batch -q -no-site-file -f batch-byte-compile vera-mode.el
  70
  71 ;; Add the following lines to the `site-start.el' file in the `site-lisp'
  72 ;; directory of your Emacs installation or to your Emacs start-up file
  73 ;; (`.emacs'):
  74
  75 ;;   (autoload 'vera-mode "vera-mode" "Vera Mode" t)
  76 ;;   (setq auto-mode-alist (cons '("\\.vr[hi]?\\'" . vera-mode) auto-mode-alist))
  77
  78 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  79
  80 ;;; Code:
  81
  82 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  83 ;;; Variables
  84 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  85
  86 (defgroup vera nil
  87   "Customizations for Vera Mode."
  88   :prefix "vera-"
  89   :version "22.2"
  90   :group 'languages)
  91
  92 (defcustom vera-basic-offset 2
  93   "Amount of basic offset used for indentation."
  94   :type 'integer
  95   :group 'vera)
  96
  97 (defcustom vera-underscore-is-part-of-word nil
  98   "Non-nil means consider the underscore character `_' as part of word.
  99 An identifier containing underscores is then treated as a single word in
 100 select and move operations.  All parts of an identifier separated by underscore
 101 are treated as single words otherwise."
 102   :type 'boolean
 103   :group 'vera)
 104
 105 (defcustom vera-intelligent-tab t
 106   "Non-nil means `TAB' does indentation, word completion and tab insertion.
 107 That is, if preceding character is part of a word then complete word,
 108 else if not at beginning of line then insert tab,
 109 else if last command was a `TAB' or `RET' then dedent one step,
 110 else indent current line.
 111 If nil, TAB always indents current line."
 112   :type 'boolean
 113   :group 'vera)
 114
 115
 116 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 117 ;;; Mode definitions
 118 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 119
 120 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 121 ;; Key bindings
 122
 123 (defvar vera-mode-map
 124   (let ((map (make-sparse-keymap)))
 125     ;; Backspace/delete key bindings.
 126     (define-key map [backspace] 'backward-delete-char-untabify)
 127     (unless (boundp 'delete-key-deletes-forward) ; XEmacs variable
 128       (define-key map [delete]       'delete-char)
 129       (define-key map [(meta delete)] 'kill-word))
 130     ;; Standard key bindings.
 131     (define-key map "\M-e"     'vera-forward-statement)
 132     (define-key map "\M-a"     'vera-backward-statement)
 133     (define-key map "\M-\C-e"  'vera-forward-same-indent)
 134     (define-key map "\M-\C-a"  'vera-backward-same-indent)
 135     ;; Mode specific key bindings.
 136     (define-key map "\C-c\t"   'indent-according-to-mode)
 137     (define-key map "\M-\C-\\" 'vera-indent-region)
 138     (define-key map "\C-c\C-c" 'vera-comment-uncomment-region)
 139     (define-key map "\C-c\C-f" 'vera-fontify-buffer)
 140     (define-key map "\C-c\C-v" 'vera-version)
 141     (define-key map "\M-\t"    'tab-to-tab-stop)
 142     ;; Electric key bindings.
 143     (define-key map "\t"       'vera-electric-tab)
 144     (define-key map "\r"       'vera-electric-return)
 145     (define-key map " "        'vera-electric-space)
 146     (define-key map "{"        'vera-electric-opening-brace)
 147     (define-key map "}"        'vera-electric-closing-brace)
 148     (define-key map "#"        'vera-electric-pound)
 149     (define-key map "*"        'vera-electric-star)
 150     (define-key map "/"        'vera-electric-slash)
 151     map)
 152   "Keymap for Vera Mode.")
 153
 154 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 155 ;; Menu
 156
 157 (require 'easymenu)
 158
 159 (easy-menu-define vera-mode-menu vera-mode-map
 160   "Menu keymap for Vera Mode."
 161   '("Vera"
 162     ["(Un)Comment Out Region"   vera-comment-uncomment-region (mark)]
 163     "--"
 164     ["Move Forward Statement"   vera-forward-statement t]
 165     ["Move Backward Statement"  vera-backward-statement t]
 166     ["Move Forward Same Indent" vera-forward-same-indent t]
 167     ["Move Backward Same Indent" vera-backward-same-indent t]
 168     "--"
 169     ["Indent Line"              indent-according-to-mode t]
 170     ["Indent Region"            vera-indent-region (mark)]
 171     ["Indent Buffer"            vera-indent-buffer t]
 172     "--"
 173     ["Fontify Buffer"           vera-fontify-buffer t]
 174     "--"
 175     ["Documentation"            describe-mode]
 176     ["Version"                  vera-version t]
 177     ["Bug Report..."            vera-submit-bug-report t]
 178     "--"
 179     ("Options"
 180      ["Indentation Offset..." (customize-option 'vera-basic-offset) t]
 181      ["Underscore is Part of Word"
 182       (customize-set-variable 'vera-underscore-is-part-of-word
 183                               (not vera-underscore-is-part-of-word))
 184       :style toggle :selected vera-underscore-is-part-of-word]
 185      ["Use Intelligent Tab"
 186       (customize-set-variable 'vera-intelligent-tab
 187                               (not vera-intelligent-tab))
 188       :style toggle :selected vera-intelligent-tab]
 189      "--"
 190      ["Save Options" customize-save-customized t]
 191      "--"
 192      ["Customize..."            vera-customize t])))
 193
 194 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 195 ;; Syntax table
 196
 197 (defvar vera-mode-syntax-table
 198   (let ((syntax-table (make-syntax-table)))
 199     ;; punctuation
 200     (modify-syntax-entry ?\# "."    syntax-table)
 201     (modify-syntax-entry ?\$ "."    syntax-table)
 202     (modify-syntax-entry ?\% "."    syntax-table)
 203     (modify-syntax-entry ?\& "."    syntax-table)
 204     (modify-syntax-entry ?\' "."    syntax-table)
 205     (modify-syntax-entry ?\* "."    syntax-table)
 206     (modify-syntax-entry ?\- "."    syntax-table)
 207     (modify-syntax-entry ?\+ "."    syntax-table)
 208     (modify-syntax-entry ?\. "."    syntax-table)
 209     (modify-syntax-entry ?\/ "."    syntax-table)
 210     (modify-syntax-entry ?\: "."    syntax-table)
 211     (modify-syntax-entry ?\; "."    syntax-table)
 212     (modify-syntax-entry ?\< "."    syntax-table)
 213     (modify-syntax-entry ?\= "."    syntax-table)
 214     (modify-syntax-entry ?\> "."    syntax-table)
 215     (modify-syntax-entry ?\\ "."    syntax-table)
 216     (modify-syntax-entry ?\| "."    syntax-table)
 217     ;; string
 218     (modify-syntax-entry ?\" "\""   syntax-table)
 219     ;; underscore
 220     (when vera-underscore-is-part-of-word
 221       (modify-syntax-entry ?\_ "w"    syntax-table))
 222     ;; escape
 223     (modify-syntax-entry ?\\ "\\"   syntax-table)
 224     ;; parentheses to match
 225     (modify-syntax-entry ?\( "()"   syntax-table)
 226     (modify-syntax-entry ?\) ")("   syntax-table)
 227     (modify-syntax-entry ?\[ "(]"   syntax-table)
 228     (modify-syntax-entry ?\] ")["   syntax-table)
 229     (modify-syntax-entry ?\{ "(}"   syntax-table)
 230     (modify-syntax-entry ?\} "){"   syntax-table)
 231     ;; comment
 232     (if (featurep 'xemacs)
 233         (modify-syntax-entry ?\/ ". 1456" syntax-table) ; XEmacs
 234       (modify-syntax-entry ?\/ ". 124b" syntax-table)) ; Emacs
 235     (modify-syntax-entry ?\* ". 23" syntax-table)
 236     ;; newline and CR
 237     (modify-syntax-entry ?\n "> b"    syntax-table)
 238     (modify-syntax-entry ?\^M "> b"   syntax-table)
 239     syntax-table)
 240   "Syntax table used in `vera-mode' buffers.")
 241
 242 (defvar vera-mode-ext-syntax-table
 243   (let ((syntax-table (copy-syntax-table vera-mode-syntax-table)))
 244     ;; extended syntax table including '_' (for simpler search regexps)
 245     (modify-syntax-entry ?_ "w" syntax-table)
 246     syntax-table)
 247   "Syntax table extended by `_' used in `vera-mode' buffers.")
 248
 249 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 250 ;; Mode definition
 251
 252 ;;;###autoload (add-to-list 'auto-mode-alist (cons (purecopy "\\.vr[hi]?\\'")  'vera-mode))
 253
 254 ;;;###autoload
 255 (define-derived-mode vera-mode prog-mode "Vera"
 256   "Major mode for editing Vera code.
 257
 258 Usage:
 259 ------
 260
 261   INDENTATION:  Typing `TAB' at the beginning of a line indents the line.
 262     The amount of indentation is specified by option `vera-basic-offset'.
 263     Indentation can be done for an entire region \(`M-C-\\') or buffer (menu).
 264     `TAB' always indents the line if option `vera-intelligent-tab' is nil.
 265
 266   WORD/COMMAND COMPLETION:  Typing `TAB' after a (not completed) word looks
 267     for a word in the buffer or a Vera keyword that starts alike, inserts it
 268     and adjusts case.  Re-typing `TAB' toggles through alternative word
 269     completions.
 270
 271     Typing `TAB' after a non-word character inserts a tabulator stop (if not
 272     at the beginning of a line).  `M-TAB' always inserts a tabulator stop.
 273
 274   COMMENTS:  `C-c C-c' comments out a region if not commented out, and
 275     uncomments a region if already commented out.
 276
 277   HIGHLIGHTING (fontification):  Vera keywords, predefined types and
 278     constants, function names, declaration names, directives, as well as
 279     comments and strings are highlighted using different colors.
 280
 281   VERA VERSION:  OpenVera 1.4 and Vera version 6.2.8.
 282
 283
 284 Maintenance:
 285 ------------
 286
 287 To submit a bug report, use the corresponding menu entry within Vera Mode.
 288 Add a description of the problem and include a reproducible test case.
 289
 290 Feel free to send questions and enhancement requests to <reto@gnu.org>.
 291
 292 Official distribution is at
 293 URL `http://www.iis.ee.ethz.ch/~zimmi/emacs/vera-mode.html'
 294
 295
 296                                                   The Vera Mode Maintainer
 297                                                Reto Zimmermann <reto@gnu.org>
 298
 299 Key bindings:
 300 -------------
 301
 302 \\{vera-mode-map}"
 303   ;; set local variables
 304   (require 'cc-cmds)
 305   (set (make-local-variable 'comment-start) "//")
 306   (set (make-local-variable 'comment-end) "")
 307   (set (make-local-variable 'comment-column) 40)
 308   (set (make-local-variable 'comment-start-skip) "/\\*+ *\\|//+ *")
 309   (set (make-local-variable 'comment-end-skip) " *\\*+/\\| *\n")
 310   (set (make-local-variable 'comment-indent-function) 'c-comment-indent)
 311   (set (make-local-variable 'paragraph-start) "^$")
 312   (set (make-local-variable 'paragraph-separate) paragraph-start)
 313   (set (make-local-variable 'indent-tabs-mode) nil)
 314   (set (make-local-variable 'indent-line-function) 'vera-indent-line)
 315   (set (make-local-variable 'parse-sexp-ignore-comments) t)
 316   ;; initialize font locking
 317   (set (make-local-variable 'font-lock-defaults)
 318        '(vera-font-lock-keywords nil nil ((?\_ . "w"))))
 319   ;; add menu (XEmacs)
 320   (easy-menu-add vera-mode-menu)
 321   ;; miscellaneous
 322   (message "Vera Mode %s.  Type C-c C-h for documentation." vera-version))
 323
 324
 325 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 326 ;;; Vera definitions
 327 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 328
 329 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 330 ;;; Keywords
 331
 332 (defconst vera-keywords
 333   '(
 334     "after" "all" "any" "around" "assoc_index" "assoc_size" "async"
 335     "bad_state" "bad_trans" "before" "begin" "big_endian" "bind"
 336     "bin_activation" "bit_normal" "bit_reverse" "break" "breakpoint"
 337     "case" "casex" "casez" "class" "constraint" "continue"
 338     "coverage" "coverage_block" "coverage_def" "coverage_depth"
 339     "coverage_goal" "coverage_group" "coverage_option" "coverage_val"
 340     "cross_num_print_missing" "cross_auto_bin_max" "cov_comment"
 341     "default" "depth" "dist" "do"
 342     "else" "end" "enum" "exhaustive" "export" "extends" "extern"
 343     "for" "foreach" "fork" "function"
 344     "hdl_task" "hdl_node" "hide"
 345     "if" "illegal_self_transition" "illegal_state" "illegal_transition"
 346     "in" "interface" "invisible"
 347     "join"
 348     "little_endian" "local"
 349     "m_bad_state" "m_bad_trans" "m_state" "m_trans"
 350     "negedge" "new" "newcov" "non_rand" "none" "not" "null"
 351     "or" "ordered"
 352     "packed" "port" "posedge" "proceed" "prod" "prodget" "prodset"
 353     "program" "protected" "public"
 354     "rand" "randc" "randcase" "randseq" "repeat" "return" "rules"
 355     "sample" "sample_event" "shadow" "soft" "state" "static" "super"
 356     "task" "terminate" "this" "trans" "typedef"
 357     "unpacked"
 358     "var" "vca" "vector" "verilog_node" "verilog_task"
 359     "vhdl_node" "vhdl_task" "virtual" "virtuals" "visible" "void"
 360     "while" "wildcard" "with"
 361     )
 362   "List of Vera keywords.")
 363
 364 (defconst vera-types
 365   '(
 366     "integer" "bit" "reg" "string" "bind_var" "event"
 367     "inout" "input" "output"
 368     "ASYNC" "CLOCK"
 369     "NDRIVE" "NHOLD" "NRX" "NRZ" "NR0" "NR1" "NSAMPLE"
 370     "PDRIVE" "PHOLD" "PRX" "PRZ" "PR0" "PR1" "PSAMPLE"
 371     )
 372   "List of Vera predefined types.")
 373
 374 (defconst vera-q-values
 375   '(
 376     "gnr" "grx" "grz" "gr0" "gr1"
 377     "nr" "rx" "rz" "r0" "r1"
 378     "snr" "srx" "srz" "sr0" "sr1"
 379     )
 380   "List of Vera predefined VCA q_values.")
 381
 382 (defconst vera-functions
 383   '(
 384     ;; system functions and tasks
 385     "alloc"
 386     "call_func" "call_task" "cast_assign" "close_conn" "cm_coverage"
 387     "cm_get_coverage" "cm_get_limit"
 388     "coverage_backup_database_file" "coverage_save_database"
 389     "delay"
 390     "error" "error_mode" "error_wait" "exit"
 391     "fclose" "feof" "ferror" "fflush" "flag" "fopen" "fprintf" "freadb"
 392     "freadb" "freadh" "freadstr"
 393     "get_bind" "get_bind_id" "get_conn_err" "get_cycle" "get_env"
 394     "get_memsize" "get_plus_arg" "get_systime" "get_time" "get_time_unit"
 395     "getstate"
 396     "initstate"
 397     "lock_file"
 398     "mailbox_get" "mailbox_put" "mailbox_receive" "mailbox_send"
 399     "make_client" "make_server"
 400     "os_command"
 401     "printf" "psprintf"
 402     "query" "query_str" "query_x"
 403     "rand48" "random" "region_enter" "region_exit" "rewind"
 404     "semaphore_get" "semaphore_put" "setstate" "signal_connect" "simwave_plot"
 405     "srandom" "sprintf" "sscanf" "stop" "suspend_thread" "sync"
 406     "timeout" "trace" "trigger"
 407     "unit_delay" "unlock_file" "up_connections"
 408     "urand48" "urandom" "urandom_range"
 409     "vera_bit_reverse" "vera_crc" "vera_pack" "vera_pack_big_endian"
 410     "vera_plot" "vera_report_profile" "vera_unpack" "vera_unpack_big_endian"
 411     "vsv_call_func" "vsv_call_task" "vsv_close_conn" "vsv_get_conn_err"
 412     "vsv_make_client" "vsv_make_server" "vsv_up_connections"
 413     "vsv_wait_for_done" "vsv_wait_for_input"
 414     "wait_child" "wait_var"
 415     ;; class methods
 416     "Configure" "DisableTrigger" "DoAction" "EnableCount" "EnableTrigger"
 417     "Event" "GetAssert" "GetCount" "GetFirstAssert" "GetName" "GetNextAssert"
 418     "Wait"
 419     "atobin" "atohex" "atoi" "atooct"
 420     "backref" "bittostr" "capacity" "compare" "constraint_mode"
 421     "delete"
 422     "empty"
 423     "find" "find_index" "first" "first_index"
 424     "get_at_least" "get_auto_bin" "get_cov_weight" "get_coverage_goal"
 425     "get_cross_bin_max" "get_status" "get_status_msg" "getc"
 426     "hash"
 427     "icompare" "insert" "inst_get_at_least" "inst_get_auto_bin_max"
 428     "inst_get_collect" "inst_get_cov_weight" "inst_get_coverage_goal"
 429     "inst_getcross_bin_max" "inst_query" "inst_set_at_least"
 430     "inst_set_auto_bin_max" "inst_set_bin_activation" "inst_set_collect"
 431     "inst_set_cov_weight" "inst_set_coverage_goal" "inst_set_cross_bin_max"
 432     "itoa"
 433     "last" "last_index" "len" "load"
 434     "match" "max" "max_index" "min" "min_index"
 435     "object_compare" "object_copy" "object_print"
 436     "pack" "pick_index" "pop_back" "pop_front" "post_pack" "post_randomize"
 437     "post_unpack" "postmatch" "pre_pack" "pre_randomize" "prematch" "push_back"
 438     "push_front" "putc"
 439     "query" "query_str"
 440     "rand_mode" "randomize" "reserve" "reverse" "rsort"
 441     "search" "set_at_least" "set_auto_bin_max" "set_bin_activation"
 442     "set_cov_weight" "set_coverage_goal" "set_cross_bin_max" "set_name" "size"
 443     "sort" "substr" "sum"
 444     "thismatch" "tolower" "toupper"
 445     "unique_index" "unpack"
 446     ;; empty methods
 447     "new" "object_compare"
 448     "post_boundary" "post_pack" "post_randomize" "post_unpack" "pre-randomize"
 449     "pre_boundary" "pre_pack" "pre_unpack"
 450     )
 451   "List of Vera predefined system functions, tasks and class methods.")
 452
 453 (defconst vera-constants
 454   '(
 455     "ALL" "ANY"
 456     "BAD_STATE" "BAD_TRANS"
 457     "CALL" "CHECK" "CHGEDGE" "CLEAR" "COPY_NO_WAIT" "COPY_WAIT"
 458     "CROSS" "CROSS_TRANS"
 459     "DEBUG" "DELETE"
 460     "EC_ARRAYX" "EC_CODE_END" "EC_CONFLICT" "EC_EVNTIMOUT" "EC_EXPECT"
 461     "EC_FULLEXPECT" "EC_MBXTMOUT" "EC_NEXPECT" "EC_RETURN" "EC_RGNTMOUT"
 462     "EC_SCONFLICT" "EC_SEMTMOUT" "EC_SEXPECT" "EC_SFULLEXPECT" "EC_SNEXTPECT"
 463     "EC_USERSET" "EQ" "EVENT"
 464     "FAIL" "FIRST" "FORK"
 465     "GE" "GOAL" "GT" "HAND_SHAKE" "HI" "HIGH" "HNUM"
 466     "LE" "LIC_EXIT" "LIC_PRERR" "LIC_PRWARN" "LIC_WAIT" "LO" "LOAD" "LOW" "LT"
 467     "MAILBOX" "MAX_COM"
 468     "NAME" "NE" "NEGEDGE" "NEXT" "NO_OVERLAP" "NO_OVERLAP_STATE"
 469     "NO_OVERLAP_TRANS" "NO_VARS" "NO_WAIT" "NUM" "NUM_BIN" "NUM_DET"
 470     "OFF" "OK" "OK_LAST" "ON" "ONE_BLAST" "ONE_SHOT" "ORDER"
 471     "PAST_IT" "PERCENT" "POSEDGE" "PROGRAM"
 472     "RAWIN" "REGION" "REPORT"
 473     "SAMPLE" "SAVE" "SEMAPHORE" "SET" "SILENT" "STATE" "STR"
 474     "STR_ERR_OUT_OF_RANGE" "STR_ERR_REGEXP_SYNTAX" "SUM"
 475     "TRANS"
 476     "VERBOSE"
 477     "WAIT"
 478     "stderr" "stdin" "stdout"
 479     )
 480   "List of Vera predefined constants.")
 481
 482 (defconst vera-rvm-types
 483   '(
 484     "VeraListIterator_VeraListIterator_rvm_log"
 485     "VeraListIterator_rvm_data" "VeraListIterator_rvm_log"
 486     "VeraListNodeVeraListIterator_rvm_log" "VeraListNodervm_data"
 487     "VeraListNodervm_log" "VeraList_VeraListIterator_rvm_log"
 488     "VeraList_rvm_data" "VeraList_rvm_log"
 489     "rvm_broadcast" "rvm_channel_class" "rvm_data" "rvm_data" "rvm_env"
 490     "rvm_log" "rvm_log_modifier" "rvm_log_msg" "rvm_log_msg" "rvm_log_msg_info"
 491     "rvm_log_watchpoint" "rvm_notify" "rvm_notify_event"
 492     "rvm_notify_event_config" "rvm_scheduler" "rvm_scheduler_election"
 493     "rvm_watchdog" "rvm_watchdog_port" "rvm_xactor" "rvm_xactor_callbacks"
 494    )
 495   "List of Vera-RVM keywords.")
 496
 497 (defconst vera-rvm-functions
 498   '(
 499     "extern_rvm_atomic_gen" "extern_rvm_channel" "extern_rvm_scenario_gen"
 500     "rvm_OO_callback" "rvm_atomic_gen" "rvm_atomic_gen_callbacks_decl"
 501     "rvm_atomic_gen_decl" "rvm_atomic_scenario_decl" "rvm_channel"
 502     "rvm_channel_" "rvm_channel_decl" "rvm_command" "rvm_cycle" "rvm_debug"
 503     "rvm_error" "rvm_fatal" "rvm_note" "rvm_protocol" "rvm_report"
 504     "rvm_scenario_decl" "rvm_scenario_election_decl" "rvm_scenario_gen"
 505     "rvm_scenario_gen_callbacks_decl" "rvm_scenario_gen_decl"
 506     "rvm_trace" "rvm_transaction" "rvm_user" "rvm_verbose" "rvm_warning"
 507    )
 508   "List of Vera-RVM functions.")
 509
 510 (defconst vera-rvm-constants
 511   '(
 512    "RVM_NUMERIC_VERSION_MACROS" "RVM_VERSION" "RVM_MINOR" "RVM_PATCH"
 513    "rvm_channel__SOURCE" "rvm_channel__SINK" "rvm_channel__NO_ACTIVE"
 514    "rvm_channel__ACT_PENDING" "rvm_channel__ACT_STARTED"
 515    "rvm_channel__ACT_COMPLETED" "rvm_channel__FULL" "rvm_channel__EMPTY"
 516    "rvm_channel__PUT" "rvm_channel__GOT" "rvm_channel__PEEKED"
 517    "rvm_channel__ACTIVATED" "rvm_channel__STARTED" "rvm_channel__COMPLETED"
 518    "rvm_channel__REMOVED" "rvm_channel__LOCKED" "rvm_channel__UNLOCKED"
 519    "rvm_data__EXECUTE" "rvm_data__STARTED" "rvm_data__ENDED"
 520    "rvm_env__CFG_GENED" "rvm_env__BUILT" "rvm_env__DUT_CFGED"
 521    "rvm_env__STARTED" "rvm_env__RESTARTED" "rvm_env__ENDED" "rvm_env__STOPPED"
 522    "rvm_env__CLEANED" "rvm_env__DONE" "rvm_log__DEFAULT" "rvm_log__UNCHANGED"
 523    "rvm_log__FAILURE_TYP" "rvm_log__NOTE_TYP" "rvm_log__DEBUG_TYP"
 524    "rvm_log__REPORT_TYP" "rvm_log__NOTIFY_TYP" "rvm_log__TIMING_TYP"
 525    "rvm_log__XHANDLING_TYP" "rvm_log__PROTOCOL_TYP" "rvm_log__TRANSACTION_TYP"
 526    "rvm_log__COMMAND_TYP" "rvm_log__CYCLE_TYP" "rvm_log__USER_TYP_0"
 527    "rvm_log__USER_TYP_1" "rvm_log__USER_TYP_2" "rvm_log__USER_TYP_3"
 528    "rvm_log__DEFAULT_TYP" "rvm_log__ALL_TYPES" "rvm_log__FATAL_SEV"
 529    "rvm_log__ERROR_SEV" "rvm_log__WARNING_SEV" "rvm_log__NORMAL_SEV"
 530    "rvm_log__TRACE_SEV" "rvm_log__DEBUG_SEV" "rvm_log__VERBOSE_SEV"
 531    "rvm_log__HIDDEN_SEV" "rvm_log__IGNORE_SEV" "rvm_log__DEFAULT_SEV"
 532    "rvm_log__ALL_SEVERITIES" "rvm_log__CONTINUE" "rvm_log__COUNT_AS_ERROR"
 533    "rvm_log__DEBUGGER" "rvm_log__DUMP" "rvm_log__STOP" "rvm_log__ABORT"
 534    "rvm_notify__ONE_SHOT_TRIGGER" "rvm_notify__ONE_BLAST_TRIGGER"
 535    "rvm_notify__HAND_SHAKE_TRIGGER" "rvm_notify__ON_OFF_TRIGGER"
 536    "rvm_xactor__XACTOR_IDLE" "rvm_xactor__XACTOR_BUSY"
 537    "rvm_xactor__XACTOR_STARTED" "rvm_xactor__XACTOR_STOPPED"
 538    "rvm_xactor__XACTOR_RESET" "rvm_xactor__XACTOR_SOFT_RST"
 539    "rvm_xactor__XACTOR_FIRM_RST" "rvm_xactor__XACTOR_HARD_RST"
 540    "rvm_xactor__XACTOR_PROTOCOL_RST" "rvm_broadcast__AFAP"
 541    "rvm_broadcast__ALAP" "rvm_watchdog__TIMEOUT"
 542    "rvm_env__DUT_RESET" "rvm_log__INTERNAL_TYP"
 543    "RVM_SCHEDULER_IS_XACTOR" "RVM_BROADCAST_IS_XACTOR"
 544   )
 545   "List of Vera-RVM predefined constants.")
 546
 547 ;; `regexp-opt' undefined (`xemacs-devel' not installed)
 548 (unless (fboundp 'regexp-opt)
 549   (defun regexp-opt (strings &optional paren)
 550     (let ((open (if paren "\\(" "")) (close (if paren "\\)" "")))
 551       (concat open (mapconcat 'regexp-quote strings "\\|") close))))
 552
 553 (defconst vera-keywords-regexp
 554   (concat "\\<\\(" (regexp-opt vera-keywords) "\\)\\>")
 555   "Regexp for Vera keywords.")
 556
 557 (defconst vera-types-regexp
 558   (concat "\\<\\(" (regexp-opt vera-types) "\\)\\>")
 559   "Regexp for Vera predefined types.")
 560
 561 (defconst vera-q-values-regexp
 562   (concat "\\<\\(" (regexp-opt vera-q-values) "\\)\\>")
 563   "Regexp for Vera predefined VCA q_values.")
 564
 565 (defconst vera-functions-regexp
 566   (concat "\\<\\(" (regexp-opt vera-functions) "\\)\\>")
 567   "Regexp for Vera predefined system functions, tasks and class methods.")
 568
 569 (defconst vera-constants-regexp
 570   (concat "\\<\\(" (regexp-opt vera-constants) "\\)\\>")
 571   "Regexp for Vera predefined constants.")
 572
 573 (defconst vera-rvm-types-regexp
 574   (concat "\\<\\(" (regexp-opt vera-rvm-types) "\\)\\>")
 575   "Regexp for Vera-RVM keywords.")
 576
 577 (defconst vera-rvm-functions-regexp
 578   (concat "\\<\\(" (regexp-opt vera-rvm-functions) "\\)\\>")
 579   "Regexp for Vera-RVM predefined system functions, tasks and class methods.")
 580
 581 (defconst vera-rvm-constants-regexp
 582   (concat "\\<\\(" (regexp-opt vera-rvm-constants) "\\)\\>")
 583   "Regexp for Vera-RVM predefined constants.")
 584
 585
 586 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 587 ;;; Font locking
 588 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 589
 590 (defun vera-font-lock-match-item (limit)
 591   "Match, and move over, any declaration item after point.
 592 Adapted from `font-lock-match-c-style-declaration-item-and-skip-to-next'."
 593   (condition-case nil
 594       (save-restriction
 595         (narrow-to-region (point-min) limit)
 596         ;; match item
 597         (when (looking-at "\\s-*\\(\\w+\\)")
 598           (save-match-data
 599             (goto-char (match-end 1))
 600             ;; move to next item
 601             (if (looking-at "\\(\\s-*\\(\\[[^]]*\\]\\s-*\\)?,\\)")
 602                 (goto-char (match-end 1))
 603               (end-of-line) t))))
 604     (error t)))
 605
 606 (defvar vera-font-lock-keywords
 607   (list
 608    ;; highlight keywords
 609    (list vera-keywords-regexp 1 'font-lock-keyword-face)
 610    ;; highlight types
 611    (list vera-types-regexp 1 'font-lock-type-face)
 612    ;; highlight RVM types
 613    (list vera-rvm-types-regexp 1 'font-lock-type-face)
 614    ;; highlight constants
 615    (list vera-constants-regexp 1 'font-lock-constant-face)
 616    ;; highlight RVM constants
 617    (list vera-rvm-constants-regexp 1 'font-lock-constant-face)
 618    ;; highlight q_values
 619    (list vera-q-values-regexp 1 'font-lock-constant-face)
 620    ;; highlight predefined functions, tasks and methods
 621    (list vera-functions-regexp 1 'vera-font-lock-function)
 622    ;; highlight predefined RVM functions
 623    (list vera-rvm-functions-regexp 1 'vera-font-lock-function)
 624    ;; highlight functions
 625    '("\\<\\(\\w+\\)\\s-*(" 1 font-lock-function-name-face)
 626    ;; highlight various declaration names
 627    '("^\\s-*\\(port\\|program\\|task\\)\\s-+\\(\\w+\\)\\>"
 628      2 font-lock-function-name-face)
 629    '("^\\s-*bind\\s-+\\(\\w+\\)\\s-+\\(\\w+\\)\\>"
 630      (1 font-lock-function-name-face) (2 font-lock-function-name-face))
 631    ;; highlight interface declaration names
 632    '("^\\s-*\\(class\\|interface\\)\\s-+\\(\\w+\\)\\>"
 633      2 vera-font-lock-interface)
 634    ;; highlight variable name definitions
 635    (list (concat "^\\s-*" vera-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
 636          '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
 637    (list (concat "^\\s-*" vera-rvm-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
 638          '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
 639    ;; highlight numbers
 640    '("\\([0-9]*'[bdoh][0-9a-fA-FxXzZ_]+\\)" 1 vera-font-lock-number)
 641    ;; highlight filenames in #include directives
 642    '("^#\\s-*include\\s-*\\(<[^>\"\n]*>?\\)"
 643      1 font-lock-string-face)
 644    ;; highlight directives and directive names
 645    '("^#\\s-*\\(\\w+\\)\\>[ \t!]*\\(\\w+\\)?"
 646      (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t))
 647    ;; highlight `@', `$' and `#'
 648    '("\\([@$#]\\)" 1 font-lock-keyword-face)
 649    ;; highlight @ and # definitions
 650    '("@\\s-*\\(\\w*\\)\\(\\s-*,\\s-*\\(\\w+\\)\\)?\\>[^.]"
 651      (1 vera-font-lock-number) (3 vera-font-lock-number nil t))
 652    ;; highlight interface signal name
 653    '("\\(\\w+\\)\\.\\w+" 1 vera-font-lock-interface)
 654    )
 655   "Regular expressions to highlight in Vera Mode.")
 656
 657 (defvar vera-font-lock-number 'vera-font-lock-number
 658   "Face name to use for @ definitions.")
 659
 660 (defvar vera-font-lock-function 'vera-font-lock-function
 661   "Face name to use for predefined functions and tasks.")
 662
 663 (defvar vera-font-lock-interface 'vera-font-lock-interface
 664   "Face name to use for interface names.")
 665
 666 (defface vera-font-lock-number
 667   '((((class color) (background light)) :foreground "Gold4")
 668     (((class color) (background dark))  :foreground "BurlyWood1")
 669     (t :slant italic :weight bold))
 670   "Font lock mode face used to highlight @ definitions."
 671   :group 'font-lock-highlighting-faces)
 672
 673 (defface vera-font-lock-function
 674   '((((class color) (background light)) :foreground "DarkCyan")
 675     (((class color) (background dark))  :foreground "Orchid1")
 676     (t :slant italic :weight bold))
 677   "Font lock mode face used to highlight predefined functions and tasks."
 678   :group 'font-lock-highlighting-faces)
 679
 680 (defface vera-font-lock-interface
 681   '((((class color) (background light)) :foreground "Grey40")
 682     (((class color) (background dark))  :foreground "Grey80")
 683     (t :slant italic :weight bold))
 684   "Font lock mode face used to highlight interface names."
 685   :group 'font-lock-highlighting-faces)
 686
 687 (defalias 'vera-fontify-buffer 'font-lock-fontify-buffer)
 688
 689 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 690 ;;; Indentation
 691 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 692
 693 (defvar vera-echo-syntactic-information-p nil
 694   "If non-nil, syntactic info is echoed when the line is indented.")
 695
 696 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 697 ;; offset functions
 698
 699 (defconst vera-offsets-alist
 700   '((comment        . vera-lineup-C-comments)
 701     (comment-intro  . vera-lineup-comment)
 702     (string         . -1000)
 703     (directive      . -1000)
 704     (block-open     . 0)
 705     (block-intro    . +)
 706     (block-close    . 0)
 707     (arglist-intro  . +)
 708     (arglist-cont   . +)
 709     (arglist-cont-nonempty . 0)
 710     (arglist-close  . 0)
 711     (statement      . 0)
 712     (statement-cont . +)
 713     (substatement   . +)
 714     (else-clause    . 0))
 715   "Association list of syntactic element symbols and indentation offsets.
 716 Adapted from `c-offsets-alist'.")
 717
 718 (defun vera-evaluate-offset (offset langelem symbol)
 719   "OFFSET can be a number, a function, a variable, a list, or one of
 720 the symbols + or -."
 721   (cond
 722    ((eq offset '+)         (setq offset vera-basic-offset))
 723    ((eq offset '-)         (setq offset (- vera-basic-offset)))
 724    ((eq offset '++)        (setq offset (* 2 vera-basic-offset)))
 725    ((eq offset '--)        (setq offset (* 2 (- vera-basic-offset))))
 726    ((eq offset '*)         (setq offset (/ vera-basic-offset 2)))
 727    ((eq offset '/)         (setq offset (/ (- vera-basic-offset) 2)))
 728    ((functionp offset)     (setq offset (funcall offset langelem)))
 729    ((listp offset)
 730     (setq offset
 731           (let (done)
 732             (while (and (not done) offset)
 733               (setq done (vera-evaluate-offset (car offset) langelem symbol)
 734                     offset (cdr offset)))
 735             (if (not done)
 736                 0
 737               done))))
 738    ((not (numberp offset)) (setq offset (symbol-value offset))))
 739   offset)
 740
 741 (defun vera-get-offset (langelem)
 742   "Get offset from LANGELEM which is a cons cell of the form:
 743 \(SYMBOL . RELPOS).  The symbol is matched against
 744 vera-offsets-alist and the offset found there is either returned,
 745 or added to the indentation at RELPOS.  If RELPOS is nil, then
 746 the offset is simply returned."
 747   (let* ((symbol (car langelem))
 748          (relpos (cdr langelem))
 749          (match  (assq symbol vera-offsets-alist))
 750          (offset (cdr-safe match)))
 751     (if (not match)
 752         (setq offset 0
 753               relpos 0)
 754       (setq offset (vera-evaluate-offset offset langelem symbol)))
 755     (+ (if (and relpos
 756                 (< relpos (line-beginning-position)))
 757            (save-excursion
 758              (goto-char relpos)
 759              (current-column))
 760          0)
 761        (vera-evaluate-offset offset langelem symbol))))
 762
 763 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 764 ;; help functions
 765
 766 (defsubst vera-point (position)
 767   "Return the value of point at certain commonly referenced POSITIONs.
 768 POSITION can be one of the following symbols:
 769   bol  -- beginning of line
 770   eol  -- end of line
 771   boi  -- back to indentation
 772   ionl -- indentation of next line
 773   iopl -- indentation of previous line
 774   bonl -- beginning of next line
 775   bopl -- beginning of previous line
 776 This function does not modify point or mark."
 777   (save-excursion
 778     (cond
 779      ((eq position 'bol)  (beginning-of-line))
 780      ((eq position 'eol)  (end-of-line))
 781      ((eq position 'boi)  (back-to-indentation))
 782      ((eq position 'bonl) (forward-line 1))
 783      ((eq position 'bopl) (forward-line -1))
 784      ((eq position 'iopl) (forward-line -1) (back-to-indentation))
 785      ((eq position 'ionl) (forward-line 1) (back-to-indentation))
 786      (t (error "Unknown buffer position requested: %s" position)))
 787     (point)))
 788
 789 (defun vera-in-literal (&optional lim)
 790   "Determine if point is in a Vera literal."
 791   (save-excursion
 792     (let ((state (parse-partial-sexp (or lim (point-min)) (point))))
 793       (cond
 794        ((nth 3 state) 'string)
 795        ((nth 4 state) 'comment)
 796        (t nil)))))
 797
 798 (defun vera-skip-forward-literal ()
 799   "Skip forward literal and return t if within one."
 800   (let ((state (save-excursion
 801                  (if (fboundp 'syntax-ppss)
 802                      (syntax-ppss)
 803                    (parse-partial-sexp (point-min) (point))))))
 804     (when (nth 8 state)
 805       ;; Inside a string or comment.
 806       (goto-char (nth 8 state))
 807       (if (nth 3 state)
 808           ;; A string.
 809           (condition-case nil (forward-sexp 1)
 810             ;; Can't find end of string: it extends til end of buffer.
 811             (error (goto-char (point-max))))
 812         ;; A comment.
 813         (forward-comment 1))
 814       t)))
 815
 816 (defun vera-skip-backward-literal ()
 817   "Skip backward literal and return t if within one."
 818   (let ((state (save-excursion
 819                  (if (fboundp 'syntax-ppss)
 820                      (syntax-ppss)
 821                    (parse-partial-sexp (point-min) (point))))))
 822     (when (nth 8 state)
 823       ;; Inside a string or comment.
 824       (goto-char (nth 8 state))
 825       t)))
 826
 827 (defsubst vera-re-search-forward (regexp &optional bound noerror)
 828   "Like `re-search-forward', but skips over matches in literals."
 829   (let (ret)
 830     (while (and (setq ret (re-search-forward regexp bound noerror))
 831                 (vera-skip-forward-literal)
 832                 (if bound (< (point) bound) t)))
 833     ret))
 834
 835 (defsubst vera-re-search-backward (regexp &optional bound noerror)
 836   "Like `re-search-backward', but skips over matches in literals."
 837   (let (ret)
 838     (while (and (setq ret (re-search-backward regexp bound noerror))
 839                 (vera-skip-backward-literal)
 840                 (if bound (> (point) bound) t)))
 841     ret))
 842
 843 (defun vera-forward-syntactic-ws (&optional lim skip-directive)
 844   "Forward skip of syntactic whitespace."
 845   (save-restriction
 846     (let* ((lim (or lim (point-max)))
 847            (here lim)
 848            (hugenum (point-max)))
 849       (narrow-to-region (point) lim)
 850       (while (/= here (point))
 851         (setq here (point))
 852         (forward-comment hugenum)
 853         (when (and skip-directive (looking-at "^\\s-*#"))
 854           (end-of-line))))))
 855
 856 (defun vera-backward-syntactic-ws (&optional lim skip-directive)
 857   "Backward skip over syntactic whitespace."
 858   (save-restriction
 859     (let* ((lim (or lim (point-min)))
 860            (here lim)
 861            (hugenum (- (point-max))))
 862       (when (< lim (point))
 863         (narrow-to-region lim (point))
 864         (while (/= here (point))
 865           (setq here (point))
 866           (forward-comment hugenum)
 867           (when (and skip-directive
 868                      (save-excursion (back-to-indentation)
 869                                      (= (following-char) ?\#)))
 870             (beginning-of-line)))))))
 871
 872 (defmacro vera-prepare-search (&rest body)
 873   "Execute BODY with a syntax table that includes '_'."
 874   `(with-syntax-table vera-mode-ext-syntax-table ,@body))
 875
 876 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 877 ;; comment indentation functions
 878
 879 (defsubst vera-langelem-col (langelem &optional preserve-point)
 880   "Convenience routine to return the column of LANGELEM's relpos.
 881 Leaves point at the relpos unless PRESERVE-POINT is non-nil."
 882   (let ((here (point)))
 883     (goto-char (cdr langelem))
 884     (prog1 (current-column)
 885       (if preserve-point
 886           (goto-char here)))))
 887
 888 (defun vera-lineup-C-comments (langelem)
 889   "Line up C block comment continuation lines.
 890 Nicked from `c-lineup-C-comments'."
 891   (save-excursion
 892     (let ((here (point))
 893           (stars (progn (back-to-indentation)
 894                         (skip-chars-forward "*")))
 895           (langelem-col (vera-langelem-col langelem)))
 896       (back-to-indentation)
 897       (if (not (re-search-forward "/\\([*]+\\)" (vera-point 'eol) t))
 898           (progn
 899             (if (not (looking-at "[*]+"))
 900                 (progn
 901                   ;; we now have to figure out where this comment begins.
 902                   (goto-char here)
 903                   (back-to-indentation)
 904                   (if (looking-at "[*]+/")
 905                       (progn (goto-char (match-end 0))
 906                              (forward-comment -1))
 907                     (goto-char (cdr langelem))
 908                     (back-to-indentation))))
 909             (- (current-column) langelem-col))
 910         (if (zerop stars)
 911             (progn
 912               (skip-chars-forward " \t")
 913               (- (current-column) langelem-col))
 914           ;; how many stars on comment opening line?  if greater than
 915           ;; on current line, align left.  if less than or equal,
 916           ;; align right.  this should also pick up Javadoc style
 917           ;; comments.
 918           (if (> (length (match-string 1)) stars)
 919               (progn
 920                 (back-to-indentation)
 921                 (- (current-column) -1 langelem-col))
 922             (- (current-column) stars langelem-col)))))))
 923
 924 (defun vera-lineup-comment (langelem)
 925   "Line up a comment start."
 926   (save-excursion
 927     (back-to-indentation)
 928     (if (bolp)
 929         ;; not indent if at beginning of line
 930         -1000
 931       ;; otherwise indent accordingly
 932       (goto-char (cdr langelem))
 933       (current-column))))
 934
 935 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 936 ;; move functions
 937
 938 (defconst vera-beg-block-re "{\\|\\<\\(begin\\|fork\\)\\>")
 939
 940 (defconst vera-end-block-re "}\\|\\<\\(end\\|join\\(\\s-+\\(all\\|any\\|none\\)\\)?\\)\\>")
 941
 942 (defconst vera-beg-substatement-re "\\<\\(else\\|for\\|if\\|repeat\\|while\\)\\>")
 943
 944 (defun vera-corresponding-begin (&optional recursive)
 945   "Find corresponding block begin if cursor is at a block end."
 946   (while (and (vera-re-search-backward
 947                (concat "\\(" vera-end-block-re "\\)\\|" vera-beg-block-re)
 948                nil t)
 949               (match-string 1))
 950     (vera-corresponding-begin t))
 951   (unless recursive (vera-beginning-of-substatement)))
 952
 953 (defun vera-corresponding-if ()
 954   "Find corresponding `if' if cursor is at `else'."
 955   (while (and (vera-re-search-backward "}\\|\\<\\(if\\|else\\)\\>" nil t)
 956               (not (equal (match-string 0) "if")))
 957     (if (equal (match-string 0) "else")
 958         (vera-corresponding-if)
 959       (forward-char)
 960       (backward-sexp))))
 961
 962 (defun vera-beginning-of-statement ()
 963   "Go to beginning of current statement."
 964   (let (pos)
 965     (while
 966         (progn
 967           ;; search for end of previous statement
 968           (while
 969               (and (vera-re-search-backward
 970                     (concat "[);]\\|" vera-beg-block-re
 971                             "\\|" vera-end-block-re) nil t)
 972                    (equal (match-string 0) ")"))
 973             (forward-char)
 974             (backward-sexp))
 975           (setq pos (match-beginning 0))
 976           ;; go back to beginning of current statement
 977           (goto-char (or (match-end 0) 0))
 978           (vera-forward-syntactic-ws nil t)
 979           (when (looking-at "(")
 980             (forward-sexp)
 981             (vera-forward-syntactic-ws nil t))
 982           ;; if "else" found, go to "if" and search again
 983           (when (looking-at "\\<else\\>")
 984             (vera-corresponding-if)
 985             (setq pos (point))
 986             t))
 987       ;; if search is repeated, go to beginning of last search
 988       (goto-char pos))))
 989
 990 (defun vera-beginning-of-substatement ()
 991   "Go to beginning of current substatement."
 992   (let ((lim (point))
 993         pos)
 994   ;; go to beginning of statement
 995     (vera-beginning-of-statement)
 996     (setq pos (point))
 997     ;; go forward all substatement opening statements until at LIM
 998     (while (and (< (point) lim)
 999                 (vera-re-search-forward vera-beg-substatement-re lim t))
1000       (setq pos (match-beginning 0)))
1001     (vera-forward-syntactic-ws nil t)
1002     (when (looking-at "(")
1003       (forward-sexp)
1004       (vera-forward-syntactic-ws nil t))
1005     (when (< (point) lim)
1006       (setq pos (point)))
1007     (goto-char pos)))
1008
1009 (defun vera-forward-statement ()
1010   "Move forward one statement."
1011   (interactive)
1012   (vera-prepare-search
1013    (while (and (vera-re-search-forward
1014                 (concat "[(;]\\|" vera-beg-block-re "\\|" vera-end-block-re)
1015                 nil t)
1016                (equal (match-string 0) "("))
1017      (backward-char)
1018      (forward-sexp))
1019    (vera-beginning-of-substatement)))
1020
1021 (defun vera-backward-statement ()
1022   "Move backward one statement."
1023   (interactive)
1024   (vera-prepare-search
1025    (vera-backward-syntactic-ws nil t)
1026    (unless (= (preceding-char) ?\))
1027      (backward-char))
1028    (vera-beginning-of-substatement)))
1029
1030 (defun vera-forward-same-indent ()
1031   "Move forward to next line with same indent."
1032   (interactive)
1033   (let ((pos (point))
1034         (indent (current-indentation)))
1035     (beginning-of-line 2)
1036     (while (and (not (eobp))
1037                 (or (looking-at "^\\s-*$")
1038                     (> (current-indentation) indent)))
1039       (beginning-of-line 2))
1040     (if (= (current-indentation) indent)
1041         (back-to-indentation)
1042       (message "No following line with same indent found in this block")
1043       (goto-char pos))))
1044
1045 (defun vera-backward-same-indent ()
1046   "Move backward to previous line with same indent."
1047   (interactive)
1048   (let ((pos (point))
1049         (indent (current-indentation)))
1050     (beginning-of-line -0)
1051     (while (and (not (bobp))
1052                 (or (looking-at "^\\s-*$")
1053                     (> (current-indentation) indent)))
1054       (beginning-of-line -0))
1055     (if (= (current-indentation) indent)
1056         (back-to-indentation)
1057       (message "No preceding line with same indent found in this block")
1058       (goto-char pos))))
1059
1060 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1061 ;; syntax analysis
1062
1063 (defmacro vera-add-syntax (symbol &optional relpos)
1064   "A simple macro to append the syntax in SYMBOL to the syntax list.
1065 try to increase performance by using this macro."
1066   `(setq syntax (cons (cons ,symbol ,(or relpos 0)) syntax)))
1067
1068 (defun vera-guess-basic-syntax ()
1069   "Determine syntactic context of current line of code."
1070   (save-excursion
1071     (beginning-of-line)
1072     (let ((indent-point (point))
1073           syntax state placeholder)
1074       ;; determine syntax state
1075       (setq state (parse-partial-sexp (point-min) (point)))
1076       (cond
1077        ;; CASE 1: in a comment?
1078        ((nth 4 state)
1079         ;; skip empty lines
1080         (while (and (zerop (forward-line -1))
1081                     (looking-at "^\\s-*$")))
1082         (vera-add-syntax 'comment (vera-point 'boi)))
1083        ;; CASE 2: in a string?
1084        ((nth 3 state)
1085         (vera-add-syntax 'string))
1086        ;; CASE 3: at a directive?
1087        ((save-excursion (back-to-indentation) (= (following-char) ?\#))
1088         (vera-add-syntax 'directive (point)))
1089        ;; CASE 4: after an opening parenthesis (argument list continuation)?
1090        ((and (nth 1 state)
1091              (or (= (char-after (nth 1 state)) ?\()
1092                  ;; also for concatenation (opening '{' and ',' on eol/eopl)
1093                  (and (= (char-after (nth 1 state)) ?\{)
1094                       (or (save-excursion
1095                             (vera-backward-syntactic-ws) (= (char-before) ?,))
1096                           (save-excursion
1097                             (end-of-line) (= (char-before) ?,))))))
1098         (goto-char (1+ (nth 1 state)))
1099         ;; is there code after the opening parenthesis on the same line?
1100         (if (looking-at "\\s-*$")
1101             (vera-add-syntax 'arglist-cont (vera-point 'boi))
1102           (vera-add-syntax 'arglist-cont-nonempty (point))))
1103        ;; CASE 5: at a block closing?
1104        ((save-excursion (back-to-indentation) (looking-at vera-end-block-re))
1105         ;; look for the corresponding begin
1106         (vera-corresponding-begin)
1107         (vera-add-syntax 'block-close (vera-point 'boi)))
1108        ;; CASE 6: at a block intro (the first line after a block opening)?
1109        ((and (save-excursion
1110                (vera-backward-syntactic-ws nil t)
1111                ;; previous line ends with a block opening?
1112                (or (/= (skip-chars-backward "{") 0) (backward-word 1))
1113                (when (looking-at vera-beg-block-re)
1114                  ;; go to beginning of substatement
1115                  (vera-beginning-of-substatement)
1116                  (setq placeholder (point))))
1117              ;; not if "fork" is followed by "{"
1118              (save-excursion
1119                (not (and (progn (back-to-indentation) (looking-at "{"))
1120                          (progn (goto-char placeholder)
1121                                 (looking-at "\\<fork\\>"))))))
1122         (goto-char placeholder)
1123         (vera-add-syntax 'block-intro (vera-point 'boi)))
1124        ;; CASE 7: at the beginning of an else clause?
1125        ((save-excursion (back-to-indentation) (looking-at "\\<else\\>"))
1126         ;; find corresponding if
1127         (vera-corresponding-if)
1128         (vera-add-syntax 'else-clause (vera-point 'boi)))
1129        ;; CASE 8: at the beginning of a statement?
1130        ;; is the previous command completed?
1131        ((or (save-excursion
1132               (vera-backward-syntactic-ws nil t)
1133               (setq placeholder (point))
1134               ;; at the beginning of the buffer?
1135               (or (bobp)
1136                   ;; previous line ends with a semicolon or
1137                   ;; is a block opening or closing?
1138                   (when (or (/= (skip-chars-backward "{};") 0)
1139                             (progn (back-to-indentation)
1140                                    (looking-at (concat vera-beg-block-re "\\|"
1141                                                        vera-end-block-re))))
1142                     ;; if at a block closing, go to beginning
1143                     (when (looking-at vera-end-block-re)
1144                       (vera-corresponding-begin))
1145                     ;; go to beginning of the statement
1146                     (vera-beginning-of-statement)
1147                     (setq placeholder (point)))
1148                   ;; at a directive?
1149                   (when (progn (back-to-indentation) (looking-at "#"))
1150                     ;; go to previous statement
1151                     (vera-beginning-of-statement)
1152                     (setq placeholder (point)))))
1153             ;; at a block opening?
1154             (when (save-excursion (back-to-indentation)
1155                                   (looking-at vera-beg-block-re))
1156               ;; go to beginning of the substatement
1157               (vera-beginning-of-substatement)
1158               (setq placeholder (point))))
1159         (goto-char placeholder)
1160         (vera-add-syntax 'statement (vera-point 'boi)))
1161        ;; CASE 9: at the beginning of a substatement?
1162        ;; is this line preceded by a substatement opening statement?
1163        ((save-excursion (vera-backward-syntactic-ws nil t)
1164                         (when (= (preceding-char) ?\)) (backward-sexp))
1165                         (backward-word 1)
1166                         (setq placeholder (point))
1167                         (looking-at vera-beg-substatement-re))
1168         (goto-char placeholder)
1169         (vera-add-syntax 'substatement (vera-point 'boi)))
1170        ;; CASE 10: it must be a statement continuation!
1171        (t
1172         ;; go to beginning of statement
1173         (vera-beginning-of-substatement)
1174         (vera-add-syntax 'statement-cont (vera-point 'boi))))
1175       ;; special case: look for a comment start
1176       (goto-char indent-point)
1177       (skip-chars-forward " \t")
1178       (when (looking-at comment-start)
1179         (vera-add-syntax 'comment-intro))
1180       ;; return syntax
1181       syntax)))
1182
1183 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1184 ;; indentation functions
1185
1186 (defun vera-indent-line ()
1187   "Indent the current line as Vera code.
1188 Return the amount of indentation change (in columns)."
1189   (interactive)
1190   (vera-prepare-search
1191    (let* ((syntax (vera-guess-basic-syntax))
1192           (pos (- (point-max) (point)))
1193           (indent (apply '+ (mapcar 'vera-get-offset syntax)))
1194           (shift-amt  (- (current-indentation) indent)))
1195      (when vera-echo-syntactic-information-p
1196        (message "syntax: %s, indent= %d" syntax indent))
1197      (unless (zerop shift-amt)
1198        (beginning-of-line)
1199        (delete-region (point) (vera-point 'boi))
1200        (indent-to indent))
1201      (if (< (point) (vera-point 'boi))
1202          (back-to-indentation)
1203        ;; If initial point was within line's indentation, position after
1204        ;; the indentation.  Else stay at same point in text.
1205        (when (> (- (point-max) pos) (point))
1206          (goto-char (- (point-max) pos))))
1207      shift-amt)))
1208
1209 (defun vera-indent-buffer ()
1210   "Indent whole buffer as Vera code.
1211 Calls `indent-region' for whole buffer."
1212   (interactive)
1213   (message "Indenting buffer...")
1214   (indent-region (point-min) (point-max) nil)
1215   (message "Indenting buffer...done"))
1216
1217 (defun vera-indent-region (start end column)
1218   "Indent region as Vera code."
1219   (interactive "r\nP")
1220   (message "Indenting region...")
1221   (indent-region start end column)
1222   (message "Indenting region...done"))
1223
1224 (defsubst vera-indent-block-closing ()
1225   "If previous word is a block closing or `else', indent line again."
1226   (when (= (char-syntax (preceding-char)) ?w)
1227     (save-excursion
1228       (backward-word 1)
1229       (when (and (not (vera-in-literal))
1230                  (looking-at (concat vera-end-block-re "\\|\\<else\\>")))
1231         (indent-according-to-mode)))))
1232
1233 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1234 ;; electrifications
1235
1236 (defun vera-electric-tab (&optional prefix)
1237   "Do what I mean (indent, expand, tab, change indent, etc..).
1238 If preceding character is part of a word or a paren then `hippie-expand',
1239 else if right of non whitespace on line then `tab-to-tab-stop',
1240 else if last command was a tab or return then dedent one step or if a comment
1241 toggle between normal indent and inline comment indent,
1242 else indent `correctly'.
1243 If `vera-intelligent-tab' is nil, always indent line."
1244   (interactive "*P")
1245   (if vera-intelligent-tab
1246       (progn
1247         (cond ((and (not (featurep 'xemacs)) (use-region-p))
1248                (vera-indent-region (region-beginning) (region-end) nil))
1249               ((memq (char-syntax (preceding-char)) '(?w ?_))
1250                (let ((case-fold-search t)
1251                      (case-replace nil)
1252                      (hippie-expand-only-buffers
1253                       (or (and (boundp 'hippie-expand-only-buffers)
1254                                hippie-expand-only-buffers)
1255                           '(vera-mode))))
1256                  (vera-expand-abbrev prefix)))
1257               ((> (current-column) (current-indentation))
1258                (tab-to-tab-stop))
1259               ((and (or (eq last-command 'vera-electric-tab)
1260                         (eq last-command 'vera-electric-return))
1261                     (/= 0 (current-indentation)))
1262                (backward-delete-char-untabify vera-basic-offset nil))
1263               (t (indent-according-to-mode)))
1264         (setq this-command 'vera-electric-tab))
1265     (indent-according-to-mode)))
1266
1267 (defun vera-electric-return ()
1268   "Insert newline and indent.  Indent current line if it is a block closing."
1269   (interactive)
1270   (vera-indent-block-closing)
1271   (newline-and-indent))
1272
1273 (defun vera-electric-space (arg)
1274   "Insert a space.  Indent current line if it is a block closing."
1275   (interactive "*P")
1276   (unless arg
1277     (vera-indent-block-closing))
1278   (self-insert-command (prefix-numeric-value arg)))
1279
1280 (defun vera-electric-opening-brace (arg)
1281   "Outdent opening brace."
1282   (interactive "*P")
1283   (self-insert-command (prefix-numeric-value arg))
1284   (unless arg
1285     (indent-according-to-mode)))
1286
1287 (defun vera-electric-closing-brace (arg)
1288   "Outdent closing brace."
1289   (interactive "*P")
1290   (self-insert-command (prefix-numeric-value arg))
1291   (unless arg
1292     (indent-according-to-mode)))
1293
1294 (defun vera-electric-pound (arg)
1295   "Insert `#' and indent as directive it first character of line."
1296   (interactive "*P")
1297   (self-insert-command (prefix-numeric-value arg))
1298   (unless arg
1299     (save-excursion
1300       (backward-char)
1301       (skip-chars-backward " \t")
1302       (when (bolp)
1303         (delete-horizontal-space)))))
1304
1305 (defun vera-electric-star (arg)
1306   "Insert a star character.  Nicked from `c-electric-star'."
1307   (interactive "*P")
1308   (self-insert-command (prefix-numeric-value arg))
1309   (if (and (not arg)
1310            (memq (vera-in-literal) '(comment))
1311            (eq (char-before) ?*)
1312            (save-excursion
1313              (forward-char -1)
1314              (skip-chars-backward "*")
1315              (if (eq (char-before) ?/)
1316                  (forward-char -1))
1317              (skip-chars-backward " \t")
1318              (bolp)))
1319       (indent-according-to-mode)))
1320
1321 (defun vera-electric-slash (arg)
1322   "Insert a slash character.  Nicked from `c-electric-slash'."
1323   (interactive "*P")
1324   (let* ((ch (char-before))
1325          (indentp (and (not arg)
1326                        (eq last-command-event ?/)
1327                        (or (and (eq ch ?/)
1328                                 (not (vera-in-literal)))
1329                            (and (eq ch ?*)
1330                                 (vera-in-literal))))))
1331     (self-insert-command (prefix-numeric-value arg))
1332     (when indentp
1333       (indent-according-to-mode))))
1334
1335
1336 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1337 ;;; Miscellaneous
1338 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1339
1340 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1341 ;; Hippie expand customization (for expansion of Vera commands)
1342
1343 (defvar vera-abbrev-list
1344   (append (list nil) vera-keywords
1345           (list nil) vera-types
1346           (list nil) vera-functions
1347           (list nil) vera-constants
1348           (list nil) vera-rvm-types
1349           (list nil) vera-rvm-functions
1350           (list nil) vera-rvm-constants)
1351   "Predefined abbreviations for Vera.")
1352
1353 (defvar vera-expand-upper-case nil)
1354
1355 (eval-when-compile (require 'hippie-exp))
1356
1357 (defun vera-try-expand-abbrev (old)
1358   "Try expanding abbreviations from `vera-abbrev-list'."
1359   (unless old
1360     (he-init-string (he-dabbrev-beg) (point))
1361     (setq he-expand-list
1362           (let ((abbrev-list vera-abbrev-list)
1363                 (sel-abbrev-list '()))
1364             (while abbrev-list
1365               (when (or (not (stringp (car abbrev-list)))
1366                         (string-match
1367                          (concat "^" he-search-string) (car abbrev-list)))
1368                 (setq sel-abbrev-list
1369                       (cons (car abbrev-list) sel-abbrev-list)))
1370               (setq abbrev-list (cdr abbrev-list)))
1371             (nreverse sel-abbrev-list))))
1372   (while (and he-expand-list
1373               (or (not (stringp (car he-expand-list)))
1374                   (he-string-member (car he-expand-list) he-tried-table t)))
1375     (unless (stringp (car he-expand-list))
1376       (setq vera-expand-upper-case (car he-expand-list)))
1377     (setq he-expand-list (cdr he-expand-list)))
1378   (if (null he-expand-list)
1379       (progn (when old (he-reset-string))
1380              nil)
1381     (he-substitute-string
1382      (if vera-expand-upper-case
1383          (upcase (car he-expand-list))
1384        (car he-expand-list))
1385      t)
1386     (setq he-expand-list (cdr he-expand-list))
1387     t))
1388
1389 ;; function for expanding abbrevs and dabbrevs
1390 (defalias 'vera-expand-abbrev
1391   (make-hippie-expand-function '(try-expand-dabbrev
1392                                  try-expand-dabbrev-all-buffers
1393                                  vera-try-expand-abbrev)))
1394
1395 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1396 ;; Comments
1397
1398 (defun vera-comment-uncomment-region (beg end &optional _arg)
1399   "Comment region if not commented, uncomment region if already commented."
1400   (interactive "r\nP")
1401   (goto-char beg)
1402   (if (looking-at comment-start-skip)
1403       (comment-region beg end '(4))
1404     (comment-region beg end)))
1405
1406 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1407 ;; Help functions
1408
1409 (defun vera-customize ()
1410   "Call the customize function with `vera' as argument."
1411   (interactive)
1412   (customize-group 'vera))
1413
1414 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1415 ;; Other
1416
1417 ;; remove ".vr" from `completion-ignored-extensions'
1418 (setq completion-ignored-extensions
1419       (delete ".vr" completion-ignored-extensions))
1420
1421
1422 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1423 ;;; Bug reports
1424 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1425
1426 (defconst vera-mode-help-address "Reto Zimmermann <reto@gnu.org>"
1427   "Address for Vera Mode bug reports.")
1428
1429 ;; get reporter-submit-bug-report when byte-compiling
1430 (eval-when-compile
1431   (require 'reporter))
1432
1433 (defun vera-submit-bug-report ()
1434   "Submit via mail a bug report on Vera Mode."
1435   (interactive)
1436   ;; load in reporter
1437   (and
1438    (y-or-n-p "Do you want to submit a report on Vera Mode? ")
1439    (require 'reporter)
1440    (let ((reporter-prompt-for-summary-p t))
1441      (reporter-submit-bug-report
1442       vera-mode-help-address
1443       (concat "Vera Mode " vera-version)
1444       (list
1445        ;; report all important variables
1446        'vera-basic-offset
1447        'vera-underscore-is-part-of-word
1448        'vera-intelligent-tab
1449        )
1450       nil nil
1451       "Hi Reto,"))))
1452
1453
1454 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1455 ;;; Documentation
1456 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1457
1458 (defun vera-version ()
1459   "Echo the current version of Vera Mode in the minibuffer."
1460   (interactive)
1461   (message "Vera Mode %s (%s)" vera-version vera-time-stamp))
1462
1463
1464 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1465
1466 (provide 'vera-mode)
1467
1468 ;;; vera-mode.el ends here