nagios-mode.el

   1 ;;
   2 ;; nagios-mode, an Emacs mode for Nagios <http://www.nagios.org/>
   3 ;; configuration files.
   4 ;;
   5 ;; Copyright Michael Orlitzky
   6 ;;
   7 ;; http://michael.orlitzky.com/
   8 ;;
   9 ;; This program is free software: you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation, either version 3 of the License, or
  12 ;; (at your option) any later version.
  13 ;;
  14 ;; This program is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17 ;; GNU General Public License for more details.
  18 ;;
  19 ;; http://www.fsf.org/licensing/licenses/gpl.html
  20 ;;
  21
  22 (require 'font-lock)
  23 (require 'regexp-opt)
  24
  25
  26 ;; Custom Variables
  27
  28 (defcustom nagios-indent-level 2
  29   "Number of spaces in one indentation (tab)."
  30   :type 'integer :group 'nagios
  31   )
  32
  33
  34
  35 ;; Indentation Voodoo
  36
  37 (defun nagios-indent-line(&optional flag)
  38   "Indents a line, taking nesting into account."
  39   (interactive)
  40   (nagios-indent-to (nagios-calculate-indent))
  41   )
  42
  43
  44 (defun beginning-of-line-pos()
  45   ;; Return the point position corresponding to the beginning
  46   ;; of the current line.
  47   (save-excursion
  48     (beginning-of-line)
  49     (point)
  50   )
  51 )
  52
  53 (defun end-of-line-pos()
  54   ;; Return the point position corresponding to the end
  55   ;; of the current line.
  56   (save-excursion
  57     (end-of-line)
  58     (point)
  59   )
  60 )
  61
  62 (defun point-offset()
  63   ;; How far are we from the beginning of the line?
  64   (- (point) (beginning-of-line-pos))
  65 )
  66
  67 (defun first-char-offset()
  68   ;; How far is the first character on this line
  69   ;; from the beginning of the line?
  70   (save-excursion
  71     (beginning-of-line)
  72     (skip-chars-forward " \t")
  73   )
  74 )
  75
  76 (defun first-char-pos()
  77   ;; What's the position of the first character on this line?
  78   (+ (beginning-of-line-pos) (first-char-offset))
  79 )
  80
  81 (defun nagios-indent-to(indent-column)
  82   "Indent the current line to column indent-column."
  83   ;; Store the point in orig-pos.
  84   (let ((orig-point (point)))
  85
  86     ;; And store the offset of the first character (with respect to the
  87     ;; beginning of the line) in orig-first-char-offset.
  88     (let ((orig-first-char-offset (first-char-offset)))
  89
  90       ;; Delete any leading whitespace, and move the point to the
  91       ;; beginning of the line.
  92       (delete-region (beginning-of-line-pos) (first-char-pos))
  93       (beginning-of-line)
  94
  95       ;; Now insert indent-column spaces.
  96       (let ((indent-remaining indent-column))
  97         (while (< 0 indent-remaining)
  98           (insert " ")
  99           (setq indent-remaining (- indent-remaining 1)))
 100       )
 101
 102       ;; The text on the current line just moved left/right some amount;
 103       ;; call it text-delta. We want to move the point that same distance.
 104       (let ((text-delta (- (first-char-offset) orig-first-char-offset)))
 105         (goto-char (+ orig-point text-delta))
 106       )
 107
 108       ;; The point should never wind up to the left of indent-column, so
 109       ;; if it's there, move it over to indent-column.
 110       (if (< (point-offset) indent-column)
 111           (goto-char (+ (beginning-of-line-pos) indent-column))
 112       )
 113     )
 114   )
 115 )
 116
 117
 118 (defun char-is-commented(pos)
 119   "True if the character at position pos is commented, nil otherwise."
 120   (save-excursion
 121     (goto-char pos)
 122     (re-search-backward "#" (beginning-of-line-pos) t)
 123   )
 124 )
 125
 126 (defun char-is-commented-and-valid(pos)
 127   "True if the character at position pos is commented and non-nil.
 128    Nil otherwise."
 129   (if (eq nil pos)
 130       nil
 131       (char-is-commented pos)
 132   )
 133 )
 134
 135
 136 (defun last-opening-brace()
 137   "Returns the position of the last opening brace, with
 138    respect to the current point. Ignores braces which
 139    are commented out."
 140   (save-excursion
 141     (let ((lob (re-search-backward "{" nil t)))
 142
 143       (while (char-is-commented-and-valid lob)
 144         (goto-char lob)
 145         (setq lob (re-search-backward "{" nil t))
 146       )
 147
 148       (if lob
 149           lob
 150           -1)
 151     )
 152   )
 153 )
 154
 155
 156 (defun last-closing-brace()
 157   "Get the position of the last closing brace, with
 158    respect to the current point. Ignores braces which
 159    are commented out."
 160   (save-excursion
 161     (let ((lcb (re-search-backward "}" nil t)))
 162
 163       (while (char-is-commented-and-valid lcb)
 164         (goto-char lcb)
 165         (setq lcb (re-search-backward "}" nil t))
 166       )
 167
 168       (if lcb
 169           lcb
 170           -1)
 171     )
 172   )
 173 )
 174
 175 (defun nagios-in-block()
 176   "Determine if the point is inside of a {} block."
 177
 178   ;; If the last brace seen in the buffer is an opening brace, we're
 179   ;; in a block. Otherwise, we aren't.
 180   (if (>= (last-closing-brace) (last-opening-brace))
 181       nil
 182       t)
 183 )
 184
 185
 186 (defun brace-on-line()
 187   ;; Is there a curly brace on this line?
 188   (save-excursion
 189     (beginning-of-line)
 190     (re-search-forward "[{}]" (end-of-line-pos) t)
 191   )
 192 )
 193
 194
 195 (defun nagios-calculate-indent()
 196   "Calculate the level of indentation."
 197
 198   ;; We're either inside a block, or we aren't.
 199   ;; Initialize the indent variable to either nagios-indent-level
 200   ;; or 0 depending on whether or not we're in a block.
 201   (let ((indent (if (nagios-in-block)
 202                     nagios-indent-level
 203                     0)
 204         )
 205        )
 206
 207     ;; Set the indentation level to 0 if we find either brace on this
 208     ;; line and.
 209     (if (and (brace-on-line) (not (char-is-commented (brace-on-line))))
 210         0
 211         indent
 212     )
 213   )
 214 )
 215
 216
 217 ;; Keymaps
 218
 219 (defun nagios-insert-right-brace-and-indent()
 220   "Insert a '}' character, and indent the line."
 221   (interactive)
 222   (insert "}")
 223   (nagios-indent-line)
 224   )
 225
 226
 227 (defvar nagios-mode-map()
 228   "Keymap used in nagios mode.")
 229
 230 (when (not nagios-mode-map)
 231   (setq nagios-mode-map (make-sparse-keymap))
 232   (define-key nagios-mode-map
 233     (read-kbd-macro "}")
 234     'nagios-insert-right-brace-and-indent)
 235   )
 236
 237
 238
 239 (defconst nagios-directives
 240   (eval-when-compile
 241     (concat "^[ \t\r\n]*"
 242
 243     (regexp-opt
 244      '("active_checks_enabled" "address" "alias" "check_command"
 245        "check_freshness" "check_interval" "check_period" "checks_enabled"
 246        "command_line" "command_name" "contactgroups" "contact_groups"
 247        "contactgroup_members" "contact_name" "contactgroup_name" "contacts"
 248        "dependent_host_name" "dependent_service_description" "email"
 249        "event_handler" "event_handler_enabled" "execution_failure_criteria"
 250        "failure_prediction_enabled" "first_notification"
 251        "first_notification_delay" "flap_detection_enabled" "freshness_threshold"
 252        "friday" "high_flap_threshold" "host_name" "host_notification_commands"
 253        "host_notification_options" "host_notification_period"
 254        "host_notifications_enabled" "hostgroup_name" "hostgroups"
 255        "is_volatile" "last_notification" "low_flap_threshold"
 256        "max_check_attempts" "members" "monday" "normal_check_interval"
 257        "notes" "notification_failure_criteria"
 258        "notification_interval" "notification_options"
 259        "notification_period" "notifications_enabled"
 260        "obsess_over_service" "pager" "parallelize_check"
 261        "parents" "passive_checks_enabled"
 262        "process_perf_data" "retain_nonstatus_information"
 263        "retain_status_information" "retry_check_interval"
 264        "retry_interval" "saturday" "service_description"
 265        "service_notification_commands" "service_notification_options"
 266        "service_notification_period" "service_notifications_enabled"
 267        "servicegroup_name" "stalking_options"
 268        "sunday" "thursday" "timeperiod_name" "tuesday" "wednesday") t)
 269
 270     "[ \r\n\t]+")
 271     )
 272   )
 273
 274
 275
 276 (defconst nagios-macros
 277   (eval-when-compile
 278     (regexp-opt
 279      '("$ADMINEMAIL$"
 280        "$ADMINPAGER$"
 281        "$ARG1$"
 282        "$ARG10$"
 283        "$ARG11$"
 284        "$ARG12$"
 285        "$ARG13$"
 286        "$ARG14$"
 287        "$ARG15$"
 288        "$ARG16$"
 289        "$ARG17$"
 290        "$ARG18$"
 291        "$ARG19$"
 292        "$ARG2$"
 293        "$ARG20$"
 294        "$ARG21$"
 295        "$ARG22$"
 296        "$ARG23$"
 297        "$ARG24$"
 298        "$ARG25$"
 299        "$ARG26$"
 300        "$ARG27$"
 301        "$ARG28$"
 302        "$ARG29$"
 303        "$ARG3$"
 304        "$ARG30$"
 305        "$ARG31$"
 306        "$ARG32$"
 307        "$ARG4$"
 308        "$ARG5$"
 309        "$ARG6$"
 310        "$ARG7$"
 311        "$ARG8$"
 312        "$ARG9$"
 313        "$COMMANDFILE$"
 314        "$CONTACTALIAS$"
 315        "$CONTACTEMAIL$"
 316        "$CONTACTGROUPALIAS$"
 317        "$CONTACTGROUPMEMBERS$"
 318        "$CONTACTGROUPNAME$"
 319        "$CONTACTGROUPNAMES$"
 320        "$CONTACTNAME$"
 321        "$CONTACTPAGER$"
 322        "$DATE$"
 323        "$EVENTSTARTTIME$"
 324        "$HOSTACKAUTHOR$"
 325        "$HOSTACKAUTHORALIAS$"
 326        "$HOSTACKAUTHORNAME$"
 327        "$HOSTACKCOMMENT$"
 328        "$HOSTACTIONURL$"
 329        "$HOSTADDRESS$"
 330        "$HOSTALIAS$"
 331        "$HOSTATTEMPT$"
 332        "$HOSTCHECKCOMMAND$"
 333        "$HOSTCHECKTYPE$"
 334        "$HOSTDISPLAYNAME$"
 335        "$HOSTDOWNTIME$"
 336        "$HOSTDURATION$"
 337        "$HOSTDURATIONSEC$"
 338        "$HOSTEVENTID$"
 339        "$HOSTEXECUTIONTIME$"
 340        "$HOSTGROUPACTIONURL$"
 341        "$HOSTGROUPALIAS$"
 342        "$HOSTGROUPMEMBERS$"
 343        "$HOSTGROUPNAME$"
 344        "$HOSTGROUPNAMES$"
 345        "$HOSTGROUPNOTES$"
 346        "$HOSTGROUPNOTESURL$"
 347        "$HOSTLATENCY$"
 348        "$HOSTNAME$"
 349        "$HOSTNOTES$"
 350        "$HOSTNOTESURL$"
 351        "$HOSTNOTIFICATIONID$"
 352        "$HOSTNOTIFICATIONNUMBER$"
 353        "$HOSTOUTPUT$"
 354        "$HOSTPERCENTCHANGE$"
 355        "$HOSTPERFDATA$"
 356        "$HOSTPERFDATAFILE$"
 357        "$HOSTPROBLEMID$"
 358        "$HOSTSTATE$"
 359        "$HOSTSTATEID$"
 360        "$HOSTSTATETYPE$"
 361        "$ISVALIDTIME$"
 362        "$LASTHOSTCHECK$"
 363        "$LASTHOSTDOWN$"
 364        "$LASTHOSTEVENTID$"
 365        "$LASTHOSTPROBLEMID$"
 366        "$LASTHOSTSTATE$"
 367        "$LASTHOSTSTATECHANGE$"
 368        "$LASTHOSTSTATEID$"
 369        "$LASTHOSTUNREACHABLE$"
 370        "$LASTHOSTUP$"
 371        "$LASTSERVICECHECK$"
 372        "$LASTSERVICECRITICAL$"
 373        "$LASTSERVICEEVENTID$"
 374        "$LASTSERVICEOK$"
 375        "$LASTSERVICEPROBLEMID$"
 376        "$LASTSERVICESTATE$"
 377        "$LASTSERVICESTATECHANGE$"
 378        "$LASTSERVICESTATEID$"
 379        "$LASTSERVICEUNKNOWN$"
 380        "$LASTSERVICEWARNING$"
 381        "$LOGFILE$"
 382        "$LONGDATETIME$"
 383        "$LONGHOSTOUTPUT$"
 384        "$LONGSERVICEOUTPUT$"
 385        "$MAINCONFIGFILE$"
 386        "$MAXHOSTATTEMPTS$"
 387        "$MAXSERVICEATTEMPTS$"
 388        "$NEXTVALIDTIME$"
 389        "$NOTIFICATIONAUTHOR$"
 390        "$NOTIFICATIONAUTHORALIAS$"
 391        "$NOTIFICATIONAUTHORNAME$"
 392        "$NOTIFICATIONCOMMENT$"
 393        "$NOTIFICATIONISESCALATED$"
 394        "$NOTIFICATIONNUMBER$"
 395        "$NOTIFICATIONRECIPIENTS$"
 396        "$NOTIFICATIONTYPE$"
 397        "$OBJECTCACHEFILE$"
 398        "$PROCESSSTARTTIME$"
 399        "$RESOURCEFILE$"
 400        "$RETENTIONDATAFILE$"
 401        "$SERVICEACKAUTHOR$"
 402        "$SERVICEACKAUTHORALIAS$"
 403        "$SERVICEACKAUTHORNAME$"
 404        "$SERVICEACKCOMMENT$"
 405        "$SERVICEACTIONURL$"
 406        "$SERVICEATTEMPT$"
 407        "$SERVICECHECKCOMMAND$"
 408        "$SERVICECHECKTYPE$"
 409        "$SERVICEDESC$"
 410        "$SERVICEDISPLAYNAME$"
 411        "$SERVICEDOWNTIME$"
 412        "$SERVICEDURATION$"
 413        "$SERVICEDURATIONSEC$"
 414        "$SERVICEEVENTID$"
 415        "$SERVICEEXECUTIONTIME$"
 416        "$SERVICEGROUPACTIONURL$"
 417        "$SERVICEGROUPALIAS$"
 418        "$SERVICEGROUPMEMBERS$"
 419        "$SERVICEGROUPNAME$"
 420        "$SERVICEGROUPNAMES$"
 421        "$SERVICEGROUPNOTES$"
 422        "$SERVICEGROUPNOTESURL$"
 423        "$SERVICEISVOLATILE$"
 424        "$SERVICELATENCY$"
 425        "$SERVICENOTES$"
 426        "$SERVICENOTESURL$"
 427        "$SERVICENOTIFICATIONID$"
 428        "$SERVICENOTIFICATIONNUMBER$"
 429        "$SERVICEOUTPUT$"
 430        "$SERVICEPERCENTCHANGE$"
 431        "$SERVICEPERFDATA$"
 432        "$SERVICEPERFDATAFILE$"
 433        "$SERVICEPROBLEMID$"
 434        "$SERVICESTATE$"
 435        "$SERVICESTATEID$"
 436        "$SERVICESTATETYPE$"
 437        "$SHORTDATETIME$"
 438        "$STATUSDATAFILE$"
 439        "$TEMPFILE$"
 440        "$TEMPPATH$"
 441        "$TIME$"
 442        "$TIMET$"
 443        "$TOTALHOSTPROBLEMS$"
 444        "$TOTALHOSTPROBLEMSUNHANDLED$"
 445        "$TOTALHOSTSDOWN$"
 446        "$TOTALHOSTSDOWNUNHANDLED$"
 447        "$TOTALHOSTSERVICES$"
 448        "$TOTALHOSTSERVICESCRITICAL$"
 449        "$TOTALHOSTSERVICESOK$"
 450        "$TOTALHOSTSERVICESUNKNOWN$"
 451        "$TOTALHOSTSERVICESWARNING$"
 452        "$TOTALHOSTSUNREACHABLE$"
 453        "$TOTALHOSTSUNREACHABLEUNHANDLED$"
 454        "$TOTALHOSTSUP$"
 455        "$TOTALSERVICEPROBLEMS$"
 456        "$TOTALSERVICEPROBLEMSUNHANDLED$"
 457        "$TOTALSERVICESCRITICAL$"
 458        "$TOTALSERVICESCRITICALUNHANDLED$"
 459        "$TOTALSERVICESOK$"
 460        "$TOTALSERVICESUNKNOWN$"
 461        "$TOTALSERVICESUNKNOWNUNHANDLED$"
 462        "$TOTALSERVICESWARNING$"
 463        "$TOTALSERVICESWARNINGUNHANDLED$"
 464        "$USER1$"
 465        "$USER10$"
 466        "$USER100$"
 467        "$USER101$"
 468        "$USER102$"
 469        "$USER103$"
 470        "$USER104$"
 471        "$USER105$"
 472        "$USER106$"
 473        "$USER107$"
 474        "$USER108$"
 475        "$USER109$"
 476        "$USER11$"
 477        "$USER110$"
 478        "$USER111$"
 479        "$USER112$"
 480        "$USER113$"
 481        "$USER114$"
 482        "$USER115$"
 483        "$USER116$"
 484        "$USER117$"
 485        "$USER118$"
 486        "$USER119$"
 487        "$USER12$"
 488        "$USER120$"
 489        "$USER121$"
 490        "$USER122$"
 491        "$USER123$"
 492        "$USER124$"
 493        "$USER125$"
 494        "$USER126$"
 495        "$USER127$"
 496        "$USER128$"
 497        "$USER129$"
 498        "$USER13$"
 499        "$USER130$"
 500        "$USER131$"
 501        "$USER132$"
 502        "$USER133$"
 503        "$USER134$"
 504        "$USER135$"
 505        "$USER136$"
 506        "$USER137$"
 507        "$USER138$"
 508        "$USER139$"
 509        "$USER14$"
 510        "$USER140$"
 511        "$USER141$"
 512        "$USER142$"
 513        "$USER143$"
 514        "$USER144$"
 515        "$USER145$"
 516        "$USER146$"
 517        "$USER147$"
 518        "$USER148$"
 519        "$USER149$"
 520        "$USER15$"
 521        "$USER150$"
 522        "$USER151$"
 523        "$USER152$"
 524        "$USER153$"
 525        "$USER154$"
 526        "$USER155$"
 527        "$USER156$"
 528        "$USER157$"
 529        "$USER158$"
 530        "$USER159$"
 531        "$USER16$"
 532        "$USER160$"
 533        "$USER161$"
 534        "$USER162$"
 535        "$USER163$"
 536        "$USER164$"
 537        "$USER165$"
 538        "$USER166$"
 539        "$USER167$"
 540        "$USER168$"
 541        "$USER169$"
 542        "$USER17$"
 543        "$USER170$"
 544        "$USER171$"
 545        "$USER172$"
 546        "$USER173$"
 547        "$USER174$"
 548        "$USER175$"
 549        "$USER176$"
 550        "$USER177$"
 551        "$USER178$"
 552        "$USER179$"
 553        "$USER18$"
 554        "$USER180$"
 555        "$USER181$"
 556        "$USER182$"
 557        "$USER183$"
 558        "$USER184$"
 559        "$USER185$"
 560        "$USER186$"
 561        "$USER187$"
 562        "$USER188$"
 563        "$USER189$"
 564        "$USER19$"
 565        "$USER190$"
 566        "$USER191$"
 567        "$USER192$"
 568        "$USER193$"
 569        "$USER194$"
 570        "$USER195$"
 571        "$USER196$"
 572        "$USER197$"
 573        "$USER198$"
 574        "$USER199$"
 575        "$USER2$"
 576        "$USER20$"
 577        "$USER200$"
 578        "$USER201$"
 579        "$USER202$"
 580        "$USER203$"
 581        "$USER204$"
 582        "$USER205$"
 583        "$USER206$"
 584        "$USER207$"
 585        "$USER208$"
 586        "$USER209$"
 587        "$USER21$"
 588        "$USER210$"
 589        "$USER211$"
 590        "$USER212$"
 591        "$USER213$"
 592        "$USER214$"
 593        "$USER215$"
 594        "$USER216$"
 595        "$USER217$"
 596        "$USER218$"
 597        "$USER219$"
 598        "$USER22$"
 599        "$USER220$"
 600        "$USER221$"
 601        "$USER222$"
 602        "$USER223$"
 603        "$USER224$"
 604        "$USER225$"
 605        "$USER226$"
 606        "$USER227$"
 607        "$USER228$"
 608        "$USER229$"
 609        "$USER23$"
 610        "$USER230$"
 611        "$USER231$"
 612        "$USER232$"
 613        "$USER233$"
 614        "$USER234$"
 615        "$USER235$"
 616        "$USER236$"
 617        "$USER237$"
 618        "$USER238$"
 619        "$USER239$"
 620        "$USER24$"
 621        "$USER240$"
 622        "$USER241$"
 623        "$USER242$"
 624        "$USER243$"
 625        "$USER244$"
 626        "$USER245$"
 627        "$USER246$"
 628        "$USER247$"
 629        "$USER248$"
 630        "$USER249$"
 631        "$USER25$"
 632        "$USER250$"
 633        "$USER251$"
 634        "$USER252$"
 635        "$USER253$"
 636        "$USER254$"
 637        "$USER255$"
 638        "$USER256$"
 639        "$USER26$"
 640        "$USER27$"
 641        "$USER28$"
 642        "$USER29$"
 643        "$USER3$"
 644        "$USER30$"
 645        "$USER31$"
 646        "$USER32$"
 647        "$USER33$"
 648        "$USER34$"
 649        "$USER35$"
 650        "$USER36$"
 651        "$USER37$"
 652        "$USER38$"
 653        "$USER39$"
 654        "$USER4$"
 655        "$USER40$"
 656        "$USER41$"
 657        "$USER42$"
 658        "$USER43$"
 659        "$USER44$"
 660        "$USER45$"
 661        "$USER46$"
 662        "$USER47$"
 663        "$USER48$"
 664        "$USER49$"
 665        "$USER5$"
 666        "$USER50$"
 667        "$USER51$"
 668        "$USER52$"
 669        "$USER53$"
 670        "$USER54$"
 671        "$USER55$"
 672        "$USER56$"
 673        "$USER57$"
 674        "$USER58$"
 675        "$USER59$"
 676        "$USER6$"
 677        "$USER60$"
 678        "$USER61$"
 679        "$USER62$"
 680        "$USER63$"
 681        "$USER64$"
 682        "$USER65$"
 683        "$USER66$"
 684        "$USER67$"
 685        "$USER68$"
 686        "$USER69$"
 687        "$USER7$"
 688        "$USER70$"
 689        "$USER71$"
 690        "$USER72$"
 691        "$USER73$"
 692        "$USER74$"
 693        "$USER75$"
 694        "$USER76$"
 695        "$USER77$"
 696        "$USER78$"
 697        "$USER79$"
 698        "$USER8$"
 699        "$USER80$"
 700        "$USER81$"
 701        "$USER82$"
 702        "$USER83$"
 703        "$USER84$"
 704        "$USER85$"
 705        "$USER86$"
 706        "$USER87$"
 707        "$USER88$"
 708        "$USER89$"
 709        "$USER9$"
 710        "$USER90$"
 711        "$USER91$"
 712        "$USER92$"
 713        "$USER93$"
 714        "$USER94$"
 715        "$USER95$"
 716        "$USER96$"
 717        "$USER97$"
 718        "$USER98$"
 719        "$USER99$")))
 720   )
 721
 722
 723
 724 (defconst nagios-definitions
 725   (eval-when-compile
 726
 727     (concat "^[ \t\r\n]*"
 728
 729             "\\(" ;; Stick parenthesis around whatever comes out
 730                   ;; of regexp-opt. We use this to match a
 731                   ;; subexpression during font-lock.
 732             (regexp-opt
 733              '("define command"
 734                "define contact"
 735                "define contactgroup"
 736                "define host"
 737                "define hostdependency"
 738                "define hostescalation"
 739                "define hostextinfo"
 740                "define hostgroup"
 741                "define hostgroupescalation"
 742                "define null"
 743                "define service"
 744                "define servicedependency"
 745                "define serviceescalation"
 746                "define serviceextinfo"
 747                "define servicegroup"
 748                "define timeperiod"))
 749                   ;; This closes the parentheses that we opened
 750             "\\)" ;; before regexp-opt.
 751
 752             ;; These can be "terminated" by either an opening curly
 753             ;; brace, or a space.
 754             "\\({\\| \\)")
 755     )
 756   )
 757
 758
 759
 760 (defconst nagios-special
 761   (eval-when-compile
 762     (concat "^[ \t\r\n]*"
 763
 764     (regexp-opt
 765      '("name" "register" "use") t)
 766
 767     "[ \r\n\t]+"))
 768   )
 769
 770
 771
 772 ;; The One True Font Locking Variable
 773
 774 (defvar nagios-font-lock-keywords
 775   (list
 776    (cons nagios-special font-lock-keyword-face)
 777    (cons nagios-directives font-lock-variable-name-face)
 778    (cons nagios-macros font-lock-constant-face)
 779    (cons nagios-definitions '(1 font-lock-function-name-face)))
 780
 781   "Rules for highlighting Nagios configuration files."
 782   )
 783
 784
 785
 786 (defvar nagios-mode-syntax-table nil
 787   "Syntax table used in nagios-mode buffers.")
 788 (if nagios-mode-syntax-table
 789     nil
 790   (setq nagios-mode-syntax-table (make-syntax-table))
 791   (modify-syntax-entry ?# "< b" nagios-mode-syntax-table)  ;; Comment style 1
 792   (modify-syntax-entry ?\; "< b" nagios-mode-syntax-table) ;; Comment style 2
 793   (modify-syntax-entry ?\n "> b" nagios-mode-syntax-table) ;; End comment
 794   )
 795
 796
 797 ;; Main Mode Function
 798
 799 (defun nagios-mode()
 800   "Major mode for editing Nagios configuration files."
 801
 802   (interactive)
 803   (kill-all-local-variables)
 804   (make-local-variable 'font-lock-defaults)
 805   (make-local-variable 'comment-start)
 806   (make-local-variable 'comment-start-skip)
 807   (make-local-variable 'comment-end)
 808   (make-local-variable 'indent-line-function)
 809   (make-local-variable 'syntax-begin-function)
 810
 811   (set-syntax-table nagios-mode-syntax-table)
 812
 813   (setq mode-name             "nagios"
 814         major-mode            'nagios-mode
 815         indent-line-function  'nagios-indent-line
 816         font-lock-defaults    '(nagios-font-lock-keywords)
 817         comment-start         "#"
 818         comment-start-skip    "#\|; +"
 819         comment-end           ""
 820
 821         ;; Since comments and strings do not span multiple lines,
 822         ;; the syntax parser can safely start parsing at the beginning
 823         ;; of any line.
 824         syntax-begin-function 'beginning-of-line
 825         )
 826
 827   ;; Keyboard Mapping
 828   (use-local-map nagios-mode-map)
 829
 830   ;; I don't /think/ I need to define this before attempting
 831   ;; to run it. Users can define it if they want.
 832   (run-hooks 'nagios-mode-hook)
 833   )
 834
 835
 836 (provide 'nagios-mode)