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      1 ;;; tablegen-mode.el --- Major mode for TableGen description files (part of LLVM project)
      2 
      3 ;; Maintainer:  The LLVM team, http://llvm.org/
      4 
      5 ;;; Commentary:
      6 ;; A major mode for TableGen description files in LLVM.
      7 
      8 (require 'comint)
      9 (require 'custom)
     10 (require 'ansi-color)
     11 
     12 ;; Create mode-specific tables.
     13 ;;; Code:
     14 
     15 (defvar td-decorators-face 'td-decorators-face
     16   "Face method decorators.")
     17 (make-face 'td-decorators-face)
     18 
     19 (defvar tablegen-font-lock-keywords
     20   (let ((kw (regexp-opt '("class" "defm" "def" "field" "include" "in"
     21                          "let" "multiclass" "foreach")
     22                         'words))
     23         (type-kw (regexp-opt '("bit" "bits" "code" "dag" "int" "list" "string")
     24                              'words))
     25         )
     26     (list
     27      ;; Comments
     28 ;;     '("\/\/" . font-lock-comment-face)
     29      ;; Strings
     30      '("\"[^\"]+\"" . font-lock-string-face)
     31      ;; Hex constants
     32      '("\\<0x[0-9A-Fa-f]+\\>" . font-lock-preprocessor-face)
     33      ;; Binary constants
     34      '("\\<0b[01]+\\>" . font-lock-preprocessor-face)
     35      ;; Integer literals
     36      '("\\<[-]?[0-9]+\\>" . font-lock-preprocessor-face)
     37      ;; Floating point constants
     38      '("\\<[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\>" . font-lock-preprocessor-face)
     39 
     40      '("^[ \t]*\\(@.+\\)" 1 'td-decorators-face)
     41      ;; Keywords
     42      (cons (concat kw "[ \n\t(]") 1)
     43 
     44      ;; Type keywords
     45      (cons (concat type-kw "[ \n\t(]") 1)
     46      ))
     47   "Additional expressions to highlight in TableGen mode.")
     48 (put 'tablegen-mode 'font-lock-defaults '(tablegen-font-lock-keywords))
     49 
     50 ;; ---------------------- Syntax table ---------------------------
     51 ;; Shamelessly ripped from jasmin.el
     52 ;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el
     53 
     54 (defvar tablegen-mode-syntax-table nil
     55   "Syntax table used in `tablegen-mode' buffers.")
     56 (when (not tablegen-mode-syntax-table)
     57   (setq tablegen-mode-syntax-table (make-syntax-table))
     58   ;; whitespace (` ')
     59   (modify-syntax-entry ?\   " "      tablegen-mode-syntax-table)
     60   (modify-syntax-entry ?\t  " "      tablegen-mode-syntax-table)
     61   (modify-syntax-entry ?\r  " "      tablegen-mode-syntax-table)
     62   (modify-syntax-entry ?\n  " "      tablegen-mode-syntax-table)
     63   (modify-syntax-entry ?\f  " "      tablegen-mode-syntax-table)
     64   ;; word constituents (`w')
     65   (modify-syntax-entry ?\%  "w"      tablegen-mode-syntax-table)
     66   (modify-syntax-entry ?\_  "w"      tablegen-mode-syntax-table)
     67   ;; comments
     68   (modify-syntax-entry ?/   ". 124b" tablegen-mode-syntax-table)
     69   (modify-syntax-entry ?*   ". 23"   tablegen-mode-syntax-table)
     70   (modify-syntax-entry ?\n  "> b"    tablegen-mode-syntax-table)
     71   ;; open paren (`(')
     72   (modify-syntax-entry ?\(  "("      tablegen-mode-syntax-table)
     73   (modify-syntax-entry ?\[  "("      tablegen-mode-syntax-table)
     74   (modify-syntax-entry ?\{  "("      tablegen-mode-syntax-table)
     75   (modify-syntax-entry ?\<  "("      tablegen-mode-syntax-table)
     76   ;; close paren (`)')
     77   (modify-syntax-entry ?\)  ")"      tablegen-mode-syntax-table)
     78   (modify-syntax-entry ?\]  ")"      tablegen-mode-syntax-table)
     79   (modify-syntax-entry ?\}  ")"      tablegen-mode-syntax-table)
     80   (modify-syntax-entry ?\>  ")"      tablegen-mode-syntax-table)
     81   ;; string quote ('"')
     82   (modify-syntax-entry ?\"  "\""     tablegen-mode-syntax-table)
     83   )
     84 
     85 ;; --------------------- Abbrev table -----------------------------
     86 
     87 (defvar tablegen-mode-abbrev-table nil
     88   "Abbrev table used while in TableGen mode.")
     89 (define-abbrev-table 'tablegen-mode-abbrev-table ())
     90 
     91 (defvar tablegen-mode-hook nil)
     92 (defvar tablegen-mode-map nil)   ; Create a mode-specific keymap.
     93 
     94 (if (not tablegen-mode-map)
     95     ()  ; Do not change the keymap if it is already set up.
     96   (setq tablegen-mode-map (make-sparse-keymap))
     97   (define-key tablegen-mode-map "\t"  'tab-to-tab-stop)
     98   (define-key tablegen-mode-map "\es" 'center-line)
     99   (define-key tablegen-mode-map "\eS" 'center-paragraph))
    100 
    101 ;;;###autoload
    102 (defun tablegen-mode ()
    103   "Major mode for editing TableGen description files.
    104 \\{tablegen-mode-map}
    105   Runs `tablegen-mode-hook' on startup."
    106   (interactive)
    107   (kill-all-local-variables)
    108   (use-local-map tablegen-mode-map)      ; Provides the local keymap.
    109   (make-local-variable 'font-lock-defaults)
    110   (setq major-mode 'tablegen-mode        ; This is how describe-mode
    111                                          ;   finds the doc string to print.
    112 	mode-name             "TableGen" ; This name goes into the modeline.
    113         local-abbrev-table    tablegen-mode-abbrev-table
    114 	font-lock-defaults    `(tablegen-font-lock-keywords)
    115 	require-final-newline t
    116         )
    117 
    118   (set-syntax-table tablegen-mode-syntax-table)
    119   (make-local-variable 'comment-start)
    120   (setq comment-start "//")
    121   (setq indent-tabs-mode nil)
    122   (run-hooks 'tablegen-mode-hook))       ; Finally, this permits the user to
    123                                          ;   customize the mode with a hook.
    124 
    125 ;; Associate .td files with tablegen-mode
    126 ;;;###autoload
    127 (add-to-list 'auto-mode-alist (cons (purecopy "\\.td\\'")  'tablegen-mode))
    128 
    129 (provide 'tablegen-mode)
    130 
    131 ;;; tablegen-mode.el ends here
    132