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1 ;;; vera-mode.el --- major mode for editing Vera files
2
3 ;; Copyright (C) 1997-2016 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 (make-obsolete-variable 'vera-underscore-is-part-of-word
105 'superword-mode "24.4")
106
107 (defcustom vera-intelligent-tab t
108 "Non-nil means `TAB' does indentation, word completion and tab insertion.
109 That is, if preceding character is part of a word then complete word,
110 else if not at beginning of line then insert tab,
111 else if last command was a `TAB' or `RET' then dedent one step,
112 else indent current line.
113 If nil, TAB always indents current line."
114 :type 'boolean
115 :group 'vera)
116
117
118 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
119 ;;; Mode definitions
120 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
121
122 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
123 ;; Key bindings
124
125 (defvar vera-mode-map
126 (let ((map (make-sparse-keymap)))
127 ;; Backspace/delete key bindings.
128 (define-key map [backspace] 'backward-delete-char-untabify)
129 (unless (boundp 'delete-key-deletes-forward) ; XEmacs variable
130 (define-key map [delete] 'delete-char)
131 (define-key map [(meta delete)] 'kill-word))
132 ;; Standard key bindings.
133 (define-key map "\M-e" 'vera-forward-statement)
134 (define-key map "\M-a" 'vera-backward-statement)
135 (define-key map "\M-\C-e" 'vera-forward-same-indent)
136 (define-key map "\M-\C-a" 'vera-backward-same-indent)
137 ;; Mode specific key bindings.
138 (define-key map "\C-c\t" 'indent-according-to-mode)
139 (define-key map "\M-\C-\\" 'vera-indent-region)
140 (define-key map "\C-c\C-c" 'vera-comment-uncomment-region)
141 (define-key map "\C-c\C-v" 'vera-version)
142 (define-key map "\M-\t" 'tab-to-tab-stop)
143 ;; Electric key bindings.
144 (define-key map "\t" 'vera-electric-tab)
145 (define-key map "\r" 'vera-electric-return)
146 (define-key map " " 'vera-electric-space)
147 (define-key map "{" 'vera-electric-opening-brace)
148 (define-key map "}" 'vera-electric-closing-brace)
149 (define-key map "#" 'vera-electric-pound)
150 (define-key map "*" 'vera-electric-star)
151 (define-key map "/" 'vera-electric-slash)
152 map)
153 "Keymap for Vera Mode.")
154
155 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
156 ;; Menu
157
158 (require 'easymenu)
159
160 (easy-menu-define vera-mode-menu vera-mode-map
161 "Menu keymap for Vera Mode."
162 '("Vera"
163 ["(Un)Comment Out Region" vera-comment-uncomment-region (mark)]
164 "--"
165 ["Move Forward Statement" vera-forward-statement t]
166 ["Move Backward Statement" vera-backward-statement t]
167 ["Move Forward Same Indent" vera-forward-same-indent t]
168 ["Move Backward Same Indent" vera-backward-same-indent t]
169 "--"
170 ["Indent Line" indent-according-to-mode t]
171 ["Indent Region" vera-indent-region (mark)]
172 ["Indent Buffer" vera-indent-buffer t]
173 "--"
174 ["Documentation" describe-mode]
175 ["Version" vera-version t]
176 ["Bug Report..." vera-submit-bug-report t]
177 "--"
178 ("Options"
179 ["Indentation Offset..." (customize-option 'vera-basic-offset) t]
180 ["Underscore is Part of Word"
181 (customize-set-variable 'vera-underscore-is-part-of-word
182 (not vera-underscore-is-part-of-word))
183 :style toggle :selected vera-underscore-is-part-of-word]
184 ["Use Intelligent Tab"
185 (customize-set-variable 'vera-intelligent-tab
186 (not vera-intelligent-tab))
187 :style toggle :selected vera-intelligent-tab]
188 "--"
189 ["Save Options" customize-save-customized t]
190 "--"
191 ["Customize..." vera-customize t])))
192
193 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
194 ;; Syntax table
195
196 (defvar vera-mode-syntax-table
197 (let ((syntax-table (make-syntax-table)))
198 ;; punctuation
199 (modify-syntax-entry ?\# "." syntax-table)
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 ;; string
217 (modify-syntax-entry ?\" "\"" syntax-table)
218 ;; underscore
219 (when vera-underscore-is-part-of-word
220 (modify-syntax-entry ?\_ "w" syntax-table))
221 ;; escape
222 (modify-syntax-entry ?\\ "\\" syntax-table)
223 ;; parentheses to match
224 (modify-syntax-entry ?\( "()" syntax-table)
225 (modify-syntax-entry ?\) ")(" 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 ;; comment
231 (if (featurep 'xemacs)
232 (modify-syntax-entry ?\/ ". 1456" syntax-table) ; XEmacs
233 (modify-syntax-entry ?\/ ". 124b" syntax-table)) ; Emacs
234 (modify-syntax-entry ?\* ". 23" syntax-table)
235 ;; newline and CR
236 (modify-syntax-entry ?\n "> b" syntax-table)
237 (modify-syntax-entry ?\^M "> b" syntax-table)
238 syntax-table)
239 "Syntax table used in `vera-mode' buffers.")
240
241 (defvar vera-mode-ext-syntax-table
242 (let ((syntax-table (copy-syntax-table vera-mode-syntax-table)))
243 ;; extended syntax table including '_' (for simpler search regexps)
244 (modify-syntax-entry ?_ "w" syntax-table)
245 syntax-table)
246 "Syntax table extended by `_' used in `vera-mode' buffers.")
247
248 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
249 ;; Mode definition
250
251 ;;;###autoload (add-to-list 'auto-mode-alist (cons (purecopy "\\.vr[hi]?\\'") 'vera-mode))
252
253 ;;;###autoload
254 (define-derived-mode vera-mode prog-mode "Vera"
255 "Major mode for editing Vera code.
256
257 Usage:
258 ------
259
260 INDENTATION: Typing `TAB' at the beginning of a line indents the line.
261 The amount of indentation is specified by option `vera-basic-offset'.
262 Indentation can be done for an entire region (`M-C-\\') or buffer (menu).
263 `TAB' always indents the line if option `vera-intelligent-tab' is nil.
264
265 WORD/COMMAND COMPLETION: Typing `TAB' after a (not completed) word looks
266 for a word in the buffer or a Vera keyword that starts alike, inserts it
267 and adjusts case. Re-typing `TAB' toggles through alternative word
268 completions.
269
270 Typing `TAB' after a non-word character inserts a tabulator stop (if not
271 at the beginning of a line). `M-TAB' always inserts a tabulator stop.
272
273 COMMENTS: `C-c C-c' comments out a region if not commented out, and
274 uncomments a region if already commented out.
275
276 HIGHLIGHTING (fontification): Vera keywords, predefined types and
277 constants, function names, declaration names, directives, as well as
278 comments and strings are highlighted using different colors.
279
280 VERA VERSION: OpenVera 1.4 and Vera version 6.2.8.
281
282
283 Maintenance:
284 ------------
285
286 To submit a bug report, use the corresponding menu entry within Vera Mode.
287 Add a description of the problem and include a reproducible test case.
288
289 Feel free to send questions and enhancement requests to <reto@gnu.org>.
290
291 Official distribution is at
292 URL `http://www.iis.ee.ethz.ch/~zimmi/emacs/vera-mode.html'
293
294
295 The Vera Mode Maintainer
296 Reto Zimmermann <reto@gnu.org>
297
298 Key bindings:
299 -------------
300
301 \\{vera-mode-map}"
302 ;; set local variables
303 (require 'cc-cmds)
304 (set (make-local-variable 'comment-start) "//")
305 (set (make-local-variable 'comment-end) "")
306 (set (make-local-variable 'comment-column) 40)
307 (set (make-local-variable 'comment-start-skip) "/\\*+ *\\|//+ *")
308 (set (make-local-variable 'comment-end-skip) " *\\*+/\\| *\n")
309 (set (make-local-variable 'comment-indent-function) 'c-comment-indent)
310 (set (make-local-variable 'paragraph-start) "^$")
311 (set (make-local-variable 'paragraph-separate) paragraph-start)
312 (set (make-local-variable 'indent-tabs-mode) nil)
313 (set (make-local-variable 'indent-line-function) 'vera-indent-line)
314 (set (make-local-variable 'parse-sexp-ignore-comments) t)
315 ;; initialize font locking
316 (set (make-local-variable 'font-lock-defaults)
317 '(vera-font-lock-keywords nil nil ((?\_ . "w"))))
318 ;; add menu (XEmacs)
319 (easy-menu-add vera-mode-menu)
320 ;; miscellaneous
321 (message "Vera Mode %s. Type C-c C-h for documentation." vera-version))
322
323
324 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
325 ;;; Vera definitions
326 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
327
328 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
329 ;;; Keywords
330
331 (defconst vera-keywords
332 '(
333 "after" "all" "any" "around" "assoc_index" "assoc_size" "async"
334 "bad_state" "bad_trans" "before" "begin" "big_endian" "bind"
335 "bin_activation" "bit_normal" "bit_reverse" "break" "breakpoint"
336 "case" "casex" "casez" "class" "constraint" "continue"
337 "coverage" "coverage_block" "coverage_def" "coverage_depth"
338 "coverage_goal" "coverage_group" "coverage_option" "coverage_val"
339 "cross_num_print_missing" "cross_auto_bin_max" "cov_comment"
340 "default" "depth" "dist" "do"
341 "else" "end" "enum" "exhaustive" "export" "extends" "extern"
342 "for" "foreach" "fork" "function"
343 "hdl_task" "hdl_node" "hide"
344 "if" "illegal_self_transition" "illegal_state" "illegal_transition"
345 "in" "interface" "invisible"
346 "join"
347 "little_endian" "local"
348 "m_bad_state" "m_bad_trans" "m_state" "m_trans"
349 "negedge" "new" "newcov" "non_rand" "none" "not" "null"
350 "or" "ordered"
351 "packed" "port" "posedge" "proceed" "prod" "prodget" "prodset"
352 "program" "protected" "public"
353 "rand" "randc" "randcase" "randseq" "repeat" "return" "rules"
354 "sample" "sample_event" "shadow" "soft" "state" "static" "super"
355 "task" "terminate" "this" "trans" "typedef"
356 "unpacked"
357 "var" "vca" "vector" "verilog_node" "verilog_task"
358 "vhdl_node" "vhdl_task" "virtual" "virtuals" "visible" "void"
359 "while" "wildcard" "with"
360 )
361 "List of Vera keywords.")
362
363 (defconst vera-types
364 '(
365 "integer" "bit" "reg" "string" "bind_var" "event"
366 "inout" "input" "output"
367 "ASYNC" "CLOCK"
368 "NDRIVE" "NHOLD" "NRX" "NRZ" "NR0" "NR1" "NSAMPLE"
369 "PDRIVE" "PHOLD" "PRX" "PRZ" "PR0" "PR1" "PSAMPLE"
370 )
371 "List of Vera predefined types.")
372
373 (defconst vera-q-values
374 '(
375 "gnr" "grx" "grz" "gr0" "gr1"
376 "nr" "rx" "rz" "r0" "r1"
377 "snr" "srx" "srz" "sr0" "sr1"
378 )
379 "List of Vera predefined VCA q_values.")
380
381 (defconst vera-functions
382 '(
383 ;; system functions and tasks
384 "alloc"
385 "call_func" "call_task" "cast_assign" "close_conn" "cm_coverage"
386 "cm_get_coverage" "cm_get_limit"
387 "coverage_backup_database_file" "coverage_save_database"
388 "delay"
389 "error" "error_mode" "error_wait" "exit"
390 "fclose" "feof" "ferror" "fflush" "flag" "fopen" "fprintf" "freadb"
391 "freadb" "freadh" "freadstr"
392 "get_bind" "get_bind_id" "get_conn_err" "get_cycle" "get_env"
393 "get_memsize" "get_plus_arg" "get_systime" "get_time" "get_time_unit"
394 "getstate"
395 "initstate"
396 "lock_file"
397 "mailbox_get" "mailbox_put" "mailbox_receive" "mailbox_send"
398 "make_client" "make_server"
399 "os_command"
400 "printf" "psprintf"
401 "query" "query_str" "query_x"
402 "rand48" "random" "region_enter" "region_exit" "rewind"
403 "semaphore_get" "semaphore_put" "setstate" "signal_connect" "simwave_plot"
404 "srandom" "sprintf" "sscanf" "stop" "suspend_thread" "sync"
405 "timeout" "trace" "trigger"
406 "unit_delay" "unlock_file" "up_connections"
407 "urand48" "urandom" "urandom_range"
408 "vera_bit_reverse" "vera_crc" "vera_pack" "vera_pack_big_endian"
409 "vera_plot" "vera_report_profile" "vera_unpack" "vera_unpack_big_endian"
410 "vsv_call_func" "vsv_call_task" "vsv_close_conn" "vsv_get_conn_err"
411 "vsv_make_client" "vsv_make_server" "vsv_up_connections"
412 "vsv_wait_for_done" "vsv_wait_for_input"
413 "wait_child" "wait_var"
414 ;; class methods
415 "Configure" "DisableTrigger" "DoAction" "EnableCount" "EnableTrigger"
416 "Event" "GetAssert" "GetCount" "GetFirstAssert" "GetName" "GetNextAssert"
417 "Wait"
418 "atobin" "atohex" "atoi" "atooct"
419 "backref" "bittostr" "capacity" "compare" "constraint_mode"
420 "delete"
421 "empty"
422 "find" "find_index" "first" "first_index"
423 "get_at_least" "get_auto_bin" "get_cov_weight" "get_coverage_goal"
424 "get_cross_bin_max" "get_status" "get_status_msg" "getc"
425 "hash"
426 "icompare" "insert" "inst_get_at_least" "inst_get_auto_bin_max"
427 "inst_get_collect" "inst_get_cov_weight" "inst_get_coverage_goal"
428 "inst_getcross_bin_max" "inst_query" "inst_set_at_least"
429 "inst_set_auto_bin_max" "inst_set_bin_activation" "inst_set_collect"
430 "inst_set_cov_weight" "inst_set_coverage_goal" "inst_set_cross_bin_max"
431 "itoa"
432 "last" "last_index" "len" "load"
433 "match" "max" "max_index" "min" "min_index"
434 "object_compare" "object_copy" "object_print"
435 "pack" "pick_index" "pop_back" "pop_front" "post_pack" "post_randomize"
436 "post_unpack" "postmatch" "pre_pack" "pre_randomize" "prematch" "push_back"
437 "push_front" "putc"
438 "query" "query_str"
439 "rand_mode" "randomize" "reserve" "reverse" "rsort"
440 "search" "set_at_least" "set_auto_bin_max" "set_bin_activation"
441 "set_cov_weight" "set_coverage_goal" "set_cross_bin_max" "set_name" "size"
442 "sort" "substr" "sum"
443 "thismatch" "tolower" "toupper"
444 "unique_index" "unpack"
445 ;; empty methods
446 "new" "object_compare"
447 "post_boundary" "post_pack" "post_randomize" "post_unpack" "pre-randomize"
448 "pre_boundary" "pre_pack" "pre_unpack"
449 )
450 "List of Vera predefined system functions, tasks and class methods.")
451
452 (defconst vera-constants
453 '(
454 "ALL" "ANY"
455 "BAD_STATE" "BAD_TRANS"
456 "CALL" "CHECK" "CHGEDGE" "CLEAR" "COPY_NO_WAIT" "COPY_WAIT"
457 "CROSS" "CROSS_TRANS"
458 "DEBUG" "DELETE"
459 "EC_ARRAYX" "EC_CODE_END" "EC_CONFLICT" "EC_EVNTIMOUT" "EC_EXPECT"
460 "EC_FULLEXPECT" "EC_MBXTMOUT" "EC_NEXPECT" "EC_RETURN" "EC_RGNTMOUT"
461 "EC_SCONFLICT" "EC_SEMTMOUT" "EC_SEXPECT" "EC_SFULLEXPECT" "EC_SNEXTPECT"
462 "EC_USERSET" "EQ" "EVENT"
463 "FAIL" "FIRST" "FORK"
464 "GE" "GOAL" "GT" "HAND_SHAKE" "HI" "HIGH" "HNUM"
465 "LE" "LIC_EXIT" "LIC_PRERR" "LIC_PRWARN" "LIC_WAIT" "LO" "LOAD" "LOW" "LT"
466 "MAILBOX" "MAX_COM"
467 "NAME" "NE" "NEGEDGE" "NEXT" "NO_OVERLAP" "NO_OVERLAP_STATE"
468 "NO_OVERLAP_TRANS" "NO_VARS" "NO_WAIT" "NUM" "NUM_BIN" "NUM_DET"
469 "OFF" "OK" "OK_LAST" "ON" "ONE_BLAST" "ONE_SHOT" "ORDER"
470 "PAST_IT" "PERCENT" "POSEDGE" "PROGRAM"
471 "RAWIN" "REGION" "REPORT"
472 "SAMPLE" "SAVE" "SEMAPHORE" "SET" "SILENT" "STATE" "STR"
473 "STR_ERR_OUT_OF_RANGE" "STR_ERR_REGEXP_SYNTAX" "SUM"
474 "TRANS"
475 "VERBOSE"
476 "WAIT"
477 "stderr" "stdin" "stdout"
478 )
479 "List of Vera predefined constants.")
480
481 (defconst vera-rvm-types
482 '(
483 "VeraListIterator_VeraListIterator_rvm_log"
484 "VeraListIterator_rvm_data" "VeraListIterator_rvm_log"
485 "VeraListNodeVeraListIterator_rvm_log" "VeraListNodervm_data"
486 "VeraListNodervm_log" "VeraList_VeraListIterator_rvm_log"
487 "VeraList_rvm_data" "VeraList_rvm_log"
488 "rvm_broadcast" "rvm_channel_class" "rvm_data" "rvm_data" "rvm_env"
489 "rvm_log" "rvm_log_modifier" "rvm_log_msg" "rvm_log_msg" "rvm_log_msg_info"
490 "rvm_log_watchpoint" "rvm_notify" "rvm_notify_event"
491 "rvm_notify_event_config" "rvm_scheduler" "rvm_scheduler_election"
492 "rvm_watchdog" "rvm_watchdog_port" "rvm_xactor" "rvm_xactor_callbacks"
493 )
494 "List of Vera-RVM keywords.")
495
496 (defconst vera-rvm-functions
497 '(
498 "extern_rvm_atomic_gen" "extern_rvm_channel" "extern_rvm_scenario_gen"
499 "rvm_OO_callback" "rvm_atomic_gen" "rvm_atomic_gen_callbacks_decl"
500 "rvm_atomic_gen_decl" "rvm_atomic_scenario_decl" "rvm_channel"
501 "rvm_channel_" "rvm_channel_decl" "rvm_command" "rvm_cycle" "rvm_debug"
502 "rvm_error" "rvm_fatal" "rvm_note" "rvm_protocol" "rvm_report"
503 "rvm_scenario_decl" "rvm_scenario_election_decl" "rvm_scenario_gen"
504 "rvm_scenario_gen_callbacks_decl" "rvm_scenario_gen_decl"
505 "rvm_trace" "rvm_transaction" "rvm_user" "rvm_verbose" "rvm_warning"
506 )
507 "List of Vera-RVM functions.")
508
509 (defconst vera-rvm-constants
510 '(
511 "RVM_NUMERIC_VERSION_MACROS" "RVM_VERSION" "RVM_MINOR" "RVM_PATCH"
512 "rvm_channel__SOURCE" "rvm_channel__SINK" "rvm_channel__NO_ACTIVE"
513 "rvm_channel__ACT_PENDING" "rvm_channel__ACT_STARTED"
514 "rvm_channel__ACT_COMPLETED" "rvm_channel__FULL" "rvm_channel__EMPTY"
515 "rvm_channel__PUT" "rvm_channel__GOT" "rvm_channel__PEEKED"
516 "rvm_channel__ACTIVATED" "rvm_channel__STARTED" "rvm_channel__COMPLETED"
517 "rvm_channel__REMOVED" "rvm_channel__LOCKED" "rvm_channel__UNLOCKED"
518 "rvm_data__EXECUTE" "rvm_data__STARTED" "rvm_data__ENDED"
519 "rvm_env__CFG_GENED" "rvm_env__BUILT" "rvm_env__DUT_CFGED"
520 "rvm_env__STARTED" "rvm_env__RESTARTED" "rvm_env__ENDED" "rvm_env__STOPPED"
521 "rvm_env__CLEANED" "rvm_env__DONE" "rvm_log__DEFAULT" "rvm_log__UNCHANGED"
522 "rvm_log__FAILURE_TYP" "rvm_log__NOTE_TYP" "rvm_log__DEBUG_TYP"
523 "rvm_log__REPORT_TYP" "rvm_log__NOTIFY_TYP" "rvm_log__TIMING_TYP"
524 "rvm_log__XHANDLING_TYP" "rvm_log__PROTOCOL_TYP" "rvm_log__TRANSACTION_TYP"
525 "rvm_log__COMMAND_TYP" "rvm_log__CYCLE_TYP" "rvm_log__USER_TYP_0"
526 "rvm_log__USER_TYP_1" "rvm_log__USER_TYP_2" "rvm_log__USER_TYP_3"
527 "rvm_log__DEFAULT_TYP" "rvm_log__ALL_TYPES" "rvm_log__FATAL_SEV"
528 "rvm_log__ERROR_SEV" "rvm_log__WARNING_SEV" "rvm_log__NORMAL_SEV"
529 "rvm_log__TRACE_SEV" "rvm_log__DEBUG_SEV" "rvm_log__VERBOSE_SEV"
530 "rvm_log__HIDDEN_SEV" "rvm_log__IGNORE_SEV" "rvm_log__DEFAULT_SEV"
531 "rvm_log__ALL_SEVERITIES" "rvm_log__CONTINUE" "rvm_log__COUNT_AS_ERROR"
532 "rvm_log__DEBUGGER" "rvm_log__DUMP" "rvm_log__STOP" "rvm_log__ABORT"
533 "rvm_notify__ONE_SHOT_TRIGGER" "rvm_notify__ONE_BLAST_TRIGGER"
534 "rvm_notify__HAND_SHAKE_TRIGGER" "rvm_notify__ON_OFF_TRIGGER"
535 "rvm_xactor__XACTOR_IDLE" "rvm_xactor__XACTOR_BUSY"
536 "rvm_xactor__XACTOR_STARTED" "rvm_xactor__XACTOR_STOPPED"
537 "rvm_xactor__XACTOR_RESET" "rvm_xactor__XACTOR_SOFT_RST"
538 "rvm_xactor__XACTOR_FIRM_RST" "rvm_xactor__XACTOR_HARD_RST"
539 "rvm_xactor__XACTOR_PROTOCOL_RST" "rvm_broadcast__AFAP"
540 "rvm_broadcast__ALAP" "rvm_watchdog__TIMEOUT"
541 "rvm_env__DUT_RESET" "rvm_log__INTERNAL_TYP"
542 "RVM_SCHEDULER_IS_XACTOR" "RVM_BROADCAST_IS_XACTOR"
543 )
544 "List of Vera-RVM predefined constants.")
545
546 ;; `regexp-opt' undefined (`xemacs-devel' not installed)
547 (unless (fboundp 'regexp-opt)
548 (defun regexp-opt (strings &optional paren)
549 (let ((open (if paren "\\(" "")) (close (if paren "\\)" "")))
550 (concat open (mapconcat 'regexp-quote strings "\\|") close))))
551
552 (defconst vera-keywords-regexp
553 (concat "\\<\\(" (regexp-opt vera-keywords) "\\)\\>")
554 "Regexp for Vera keywords.")
555
556 (defconst vera-types-regexp
557 (concat "\\<\\(" (regexp-opt vera-types) "\\)\\>")
558 "Regexp for Vera predefined types.")
559
560 (defconst vera-q-values-regexp
561 (concat "\\<\\(" (regexp-opt vera-q-values) "\\)\\>")
562 "Regexp for Vera predefined VCA q_values.")
563
564 (defconst vera-functions-regexp
565 (concat "\\<\\(" (regexp-opt vera-functions) "\\)\\>")
566 "Regexp for Vera predefined system functions, tasks and class methods.")
567
568 (defconst vera-constants-regexp
569 (concat "\\<\\(" (regexp-opt vera-constants) "\\)\\>")
570 "Regexp for Vera predefined constants.")
571
572 (defconst vera-rvm-types-regexp
573 (concat "\\<\\(" (regexp-opt vera-rvm-types) "\\)\\>")
574 "Regexp for Vera-RVM keywords.")
575
576 (defconst vera-rvm-functions-regexp
577 (concat "\\<\\(" (regexp-opt vera-rvm-functions) "\\)\\>")
578 "Regexp for Vera-RVM predefined system functions, tasks and class methods.")
579
580 (defconst vera-rvm-constants-regexp
581 (concat "\\<\\(" (regexp-opt vera-rvm-constants) "\\)\\>")
582 "Regexp for Vera-RVM predefined constants.")
583
584
585 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
586 ;;; Font locking
587 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
588
589 (defun vera-font-lock-match-item (limit)
590 "Match, and move over, any declaration item after point.
591 Adapted from `font-lock-match-c-style-declaration-item-and-skip-to-next'."
592 (condition-case nil
593 (save-restriction
594 (narrow-to-region (point-min) limit)
595 ;; match item
596 (when (looking-at "\\s-*\\(\\w+\\)")
597 (save-match-data
598 (goto-char (match-end 1))
599 ;; move to next item
600 (if (looking-at "\\(\\s-*\\(\\[[^]]*\\]\\s-*\\)?,\\)")
601 (goto-char (match-end 1))
602 (end-of-line) t))))
603 (error t)))
604
605 (defvar vera-font-lock-keywords
606 (list
607 ;; highlight keywords
608 (list vera-keywords-regexp 1 'font-lock-keyword-face)
609 ;; highlight types
610 (list vera-types-regexp 1 'font-lock-type-face)
611 ;; highlight RVM types
612 (list vera-rvm-types-regexp 1 'font-lock-type-face)
613 ;; highlight constants
614 (list vera-constants-regexp 1 'font-lock-constant-face)
615 ;; highlight RVM constants
616 (list vera-rvm-constants-regexp 1 'font-lock-constant-face)
617 ;; highlight q_values
618 (list vera-q-values-regexp 1 'font-lock-constant-face)
619 ;; highlight predefined functions, tasks and methods
620 (list vera-functions-regexp 1 'vera-font-lock-function)
621 ;; highlight predefined RVM functions
622 (list vera-rvm-functions-regexp 1 'vera-font-lock-function)
623 ;; highlight functions
624 '("\\<\\(\\w+\\)\\s-*(" 1 font-lock-function-name-face)
625 ;; highlight various declaration names
626 '("^\\s-*\\(port\\|program\\|task\\)\\s-+\\(\\w+\\)\\>"
627 2 font-lock-function-name-face)
628 '("^\\s-*bind\\s-+\\(\\w+\\)\\s-+\\(\\w+\\)\\>"
629 (1 font-lock-function-name-face) (2 font-lock-function-name-face))
630 ;; highlight interface declaration names
631 '("^\\s-*\\(class\\|interface\\)\\s-+\\(\\w+\\)\\>"
632 2 vera-font-lock-interface)
633 ;; highlight variable name definitions
634 (list (concat "^\\s-*" vera-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
635 '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
636 (list (concat "^\\s-*" vera-rvm-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
637 '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
638 ;; highlight numbers
639 '("\\([0-9]*'[bdoh][0-9a-fA-FxXzZ_]+\\)" 1 vera-font-lock-number)
640 ;; highlight filenames in #include directives
641 '("^#\\s-*include\\s-*\\(<[^>\"\n]*>?\\)"
642 1 font-lock-string-face)
643 ;; highlight directives and directive names
644 '("^#\\s-*\\(\\w+\\)\\>[ \t!]*\\(\\w+\\)?"
645 (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t))
646 ;; highlight `@', `$' and `#'
647 '("\\([@$#]\\)" 1 font-lock-keyword-face)
648 ;; highlight @ and # definitions
649 '("@\\s-*\\(\\w*\\)\\(\\s-*,\\s-*\\(\\w+\\)\\)?\\>[^.]"
650 (1 vera-font-lock-number) (3 vera-font-lock-number nil t))
651 ;; highlight interface signal name
652 '("\\(\\w+\\)\\.\\w+" 1 vera-font-lock-interface)
653 )
654 "Regular expressions to highlight in Vera Mode.")
655
656 (defvar vera-font-lock-number 'vera-font-lock-number
657 "Face name to use for @ definitions.")
658
659 (defvar vera-font-lock-function 'vera-font-lock-function
660 "Face name to use for predefined functions and tasks.")
661
662 (defvar vera-font-lock-interface 'vera-font-lock-interface
663 "Face name to use for interface names.")
664
665 (defface vera-font-lock-number
666 '((((class color) (background light)) :foreground "Gold4")
667 (((class color) (background dark)) :foreground "BurlyWood1")
668 (t :slant italic :weight bold))
669 "Font lock mode face used to highlight @ definitions."
670 :group 'font-lock-highlighting-faces)
671
672 (defface vera-font-lock-function
673 '((((class color) (background light)) :foreground "DarkCyan")
674 (((class color) (background dark)) :foreground "Orchid1")
675 (t :slant italic :weight bold))
676 "Font lock mode face used to highlight predefined functions and tasks."
677 :group 'font-lock-highlighting-faces)
678
679 (defface vera-font-lock-interface
680 '((((class color) (background light)) :foreground "Grey40")
681 (((class color) (background dark)) :foreground "Grey80")
682 (t :slant italic :weight bold))
683 "Font lock mode face used to highlight interface names."
684 :group 'font-lock-highlighting-faces)
685
686 (define-obsolete-function-alias 'vera-fontify-buffer
687 'font-lock-fontify-buffer "25.1")
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-strictly 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-strictly 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-strictly 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 (declare-function he-init-string "hippie-exp" (beg end))
1357 (declare-function he-dabbrev-beg "hippie-exp" ())
1358 (declare-function he-string-member "hippie-exp" (str lst &optional trans-case))
1359 (declare-function he-reset-string "hippie-exp" ())
1360 (declare-function he-substitute-string "hippie-exp" (str &optional trans-case))
1361
1362 (defun vera-try-expand-abbrev (old)
1363 "Try expanding abbreviations from `vera-abbrev-list'."
1364 (unless old
1365 (he-init-string (he-dabbrev-beg) (point))
1366 (setq he-expand-list
1367 (let ((abbrev-list vera-abbrev-list)
1368 (sel-abbrev-list '()))
1369 (while abbrev-list
1370 (when (or (not (stringp (car abbrev-list)))
1371 (string-match
1372 (concat "^" he-search-string) (car abbrev-list)))
1373 (setq sel-abbrev-list
1374 (cons (car abbrev-list) sel-abbrev-list)))
1375 (setq abbrev-list (cdr abbrev-list)))
1376 (nreverse sel-abbrev-list))))
1377 (while (and he-expand-list
1378 (or (not (stringp (car he-expand-list)))
1379 (he-string-member (car he-expand-list) he-tried-table t)))
1380 (unless (stringp (car he-expand-list))
1381 (setq vera-expand-upper-case (car he-expand-list)))
1382 (setq he-expand-list (cdr he-expand-list)))
1383 (if (null he-expand-list)
1384 (progn (when old (he-reset-string))
1385 nil)
1386 (he-substitute-string
1387 (if vera-expand-upper-case
1388 (upcase (car he-expand-list))
1389 (car he-expand-list))
1390 t)
1391 (setq he-expand-list (cdr he-expand-list))
1392 t))
1393
1394 ;; function for expanding abbrevs and dabbrevs
1395 (defalias 'vera-expand-abbrev
1396 (make-hippie-expand-function '(try-expand-dabbrev
1397 try-expand-dabbrev-all-buffers
1398 vera-try-expand-abbrev)))
1399
1400 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1401 ;; Comments
1402
1403 (defun vera-comment-uncomment-region (beg end &optional _arg)
1404 "Comment region if not commented, uncomment region if already commented."
1405 (interactive "r\nP")
1406 (goto-char beg)
1407 (if (looking-at comment-start-skip)
1408 (comment-region beg end '(4))
1409 (comment-region beg end)))
1410
1411 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1412 ;; Help functions
1413
1414 (defun vera-customize ()
1415 "Call the customize function with `vera' as argument."
1416 (interactive)
1417 (customize-group 'vera))
1418
1419 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1420 ;; Other
1421
1422 ;; remove ".vr" from `completion-ignored-extensions'
1423 (setq completion-ignored-extensions
1424 (delete ".vr" completion-ignored-extensions))
1425
1426
1427 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1428 ;;; Bug reports
1429 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1430
1431 (defconst vera-mode-help-address
1432 "Reto Zimmermann <reto@gnu.org>, bug-gnu-emacs@gnu.org"
1433 "Address for Vera Mode bug reports.")
1434
1435 ;; get reporter-submit-bug-report when byte-compiling
1436 (eval-when-compile
1437 (require 'reporter))
1438
1439 (defun vera-submit-bug-report ()
1440 "Submit via mail a bug report on Vera Mode."
1441 (interactive)
1442 ;; load in reporter
1443 (and
1444 (y-or-n-p "Do you want to submit a report on Vera Mode? ")
1445 (require 'reporter)
1446 (let ((reporter-prompt-for-summary-p t))
1447 (reporter-submit-bug-report
1448 vera-mode-help-address
1449 (concat "Vera Mode " vera-version)
1450 (list
1451 ;; report all important variables
1452 'vera-basic-offset
1453 'vera-underscore-is-part-of-word
1454 'vera-intelligent-tab
1455 )
1456 nil nil
1457 "Hi Reto,"))))
1458
1459
1460 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1461 ;;; Documentation
1462 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1463
1464 (defun vera-version ()
1465 "Echo the current version of Vera Mode in the minibuffer."
1466 (interactive)
1467 (message "Vera Mode %s (%s)" vera-version vera-time-stamp))
1468
1469
1470 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1471
1472 (provide 'vera-mode)
1473
1474 ;;; vera-mode.el ends here