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