utils/emacs/tablegen-mode.el

   1 ;; Maintainer:  The LLVM team, http://llvm.org/
   2 ;; Description: Major mode for TableGen description files (part of LLVM project)
   3 ;; Updated:     2007-12-18
   4
   5 (require 'comint)
   6 (require 'custom)
   7 (require 'ansi-color)
   8
   9 ;; Create mode-specific tables.
  10 (defvar td-decorators-face 'td-decorators-face
  11   "Face method decorators.")
  12 (make-face 'td-decorators-face)
  13
  14 (defvar tablegen-font-lock-keywords
  15   (let ((kw (mapconcat 'identity
  16                        '("class" "defm" "def" "field" "include" "in"
  17                          "let" "multiclass")
  18                        "\\|"))
  19         (type-kw (mapconcat 'identity
  20                             '("bit" "bits" "code" "dag" "int" "list" "string")
  21                             "\\|"))
  22         )
  23     (list
  24      ;; Comments
  25 ;;     '("\/\/" . font-lock-comment-face)
  26      ;; Strings
  27      '("\"[^\"]+\"" . font-lock-string-face)
  28      ;; Hex constants
  29      '("\\<0x[0-9A-Fa-f]+\\>" . font-lock-preprocessor-face)
  30      ;; Binary constants
  31      '("\\<0b[01]+\\>" . font-lock-preprocessor-face)
  32      ;; Integer literals
  33      '("\\<[-]?[0-9]+\\>" . font-lock-preprocessor-face)
  34      ;; Floating point constants
  35      '("\\<[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\>" . font-lock-preprocessor-face)
  36
  37      '("^[ \t]*\\(@.+\\)" 1 'td-decorators-face)
  38      ;; Keywords
  39      (cons (concat "\\<\\(" kw "\\)\\>[ \n\t(]") 1)
  40
  41      ;; Type keywords
  42      (cons (concat "\\<\\(" type-kw "\\)[ \n\t(]") 1)
  43      ))
  44   "Additional expressions to highlight in TableGen mode.")
  45 (put 'tablegen-mode 'font-lock-defaults '(tablegen-font-lock-keywords))
  46
  47 ;; ---------------------- Syntax table ---------------------------
  48 ;; Shamelessly ripped from jasmin.el
  49 ;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el
  50
  51 (defvar tablegen-mode-syntax-table nil
  52   "Syntax table used in `tablegen-mode' buffers.")
  53 (when (not tablegen-mode-syntax-table)
  54   (setq tablegen-mode-syntax-table (make-syntax-table))
  55   ;; whitespace (` ')
  56   (modify-syntax-entry ?\   " "      tablegen-mode-syntax-table)
  57   (modify-syntax-entry ?\t  " "      tablegen-mode-syntax-table)
  58   (modify-syntax-entry ?\r  " "      tablegen-mode-syntax-table)
  59   (modify-syntax-entry ?\n  " "      tablegen-mode-syntax-table)
  60   (modify-syntax-entry ?\f  " "      tablegen-mode-syntax-table)
  61   ;; word constituents (`w')
  62   (modify-syntax-entry ?\%  "w"      tablegen-mode-syntax-table)
  63   (modify-syntax-entry ?\_  "w"      tablegen-mode-syntax-table)
  64   ;; comments
  65   (modify-syntax-entry ?/   ". 124b" tablegen-mode-syntax-table)
  66   (modify-syntax-entry ?*   ". 23"   tablegen-mode-syntax-table)
  67   (modify-syntax-entry ?\n  "> b"    tablegen-mode-syntax-table)
  68   ;; open paren (`(')
  69   (modify-syntax-entry ?\(  "("      tablegen-mode-syntax-table)
  70   (modify-syntax-entry ?\[  "("      tablegen-mode-syntax-table)
  71   (modify-syntax-entry ?\{  "("      tablegen-mode-syntax-table)
  72   (modify-syntax-entry ?\<  "("      tablegen-mode-syntax-table)
  73   ;; close paren (`)')
  74   (modify-syntax-entry ?\)  ")"      tablegen-mode-syntax-table)
  75   (modify-syntax-entry ?\]  ")"      tablegen-mode-syntax-table)
  76   (modify-syntax-entry ?\}  ")"      tablegen-mode-syntax-table)
  77   (modify-syntax-entry ?\>  ")"      tablegen-mode-syntax-table)
  78   ;; string quote ('"')
  79   (modify-syntax-entry ?\"  "\""     tablegen-mode-syntax-table)
  80   )
  81
  82 ;; --------------------- Abbrev table -----------------------------
  83
  84 (defvar tablegen-mode-abbrev-table nil
  85   "Abbrev table used while in TableGen mode.")
  86 (define-abbrev-table 'tablegen-mode-abbrev-table ())
  87
  88 (defvar tablegen-mode-hook nil)
  89 (defvar tablegen-mode-map nil)   ; Create a mode-specific keymap.
  90
  91 (if (not tablegen-mode-map)
  92     ()  ; Do not change the keymap if it is already set up.
  93   (setq tablegen-mode-map (make-sparse-keymap))
  94   (define-key tablegen-mode-map "\t"  'tab-to-tab-stop)
  95   (define-key tablegen-mode-map "\es" 'center-line)
  96   (define-key tablegen-mode-map "\eS" 'center-paragraph))
  97
  98 (defun tablegen-mode ()
  99   "Major mode for editing TableGen description files.
 100   \\{tablegen-mode-map}
 101   Runs tablegen-mode-hook on startup."
 102   (interactive)
 103   (kill-all-local-variables)
 104   (use-local-map tablegen-mode-map)      ; Provides the local keymap.
 105   (make-local-variable 'font-lock-defaults)
 106   (setq major-mode 'tablegen-mode        ; This is how describe-mode
 107                                          ;   finds the doc string to print.
 108         mode-name             "TableGen" ; This name goes into the modeline.
 109         local-abbrev-table    tablegen-mode-abbrev-table
 110         font-lock-defaults    `(tablegen-font-lock-keywords)
 111         require-final-newline t
 112         )
 113
 114   (set-syntax-table tablegen-mode-syntax-table)
 115   (run-hooks 'tablegen-mode-hook))       ; Finally, this permits the user to
 116                                          ;   customize the mode with a hook.
 117
 118 ;; Associate .td files with tablegen-mode
 119 (setq auto-mode-alist (append '(("\\.td$" . tablegen-mode)) auto-mode-alist))
 120
 121 (provide 'tablegen-mode)
 122 ;; end of tablegen-mode.el