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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