llvm-mode.el revision 3f91af0e5aded05c33f49fa9980b57029dd520ac 
1;; Maintainer:  The LLVM team, http://llvm.org/
2;; Description: Major mode for the LLVM assembler language.
3;; Updated:     2007-09-19
4
5;; Create mode-specific tables.
6(defvar llvm-mode-syntax-table nil
7  "Syntax table used while in LLVM mode.")
8(defvar llvm-font-lock-keywords
9  (list
10   ;; Comments
11   '(";.*" . font-lock-comment-face)
12   ;; Variables
13   '("%[-a-zA-Z$\._][-a-zA-Z$\._0-9]*" . font-lock-variable-name-face)
14   ;; Labels
15   '("[-a-zA-Z$\._0-9]+:" . font-lock-variable-name-face)
16   ;; Strings
17   '("\"[^\"]+\"" . font-lock-string-face)
18   ;; Unnamed variable slots
19   '("%[-]?[0-9]+" . font-lock-variable-name-face)
20   ;; Types
21   `(,(regexp-opt '("void" "i[0-9]+" "float" "double" "type" "label" "opaque") 'words) . font-lock-type-face)
22   ;; Integer literals
23   '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
24   ;; Floating point constants
25   '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
26   ;; Hex constants
27   '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
28   ;; Keywords
29   `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
30                    "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
31                    "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
32                    "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
33                    "pointersize" "volatile" "fastcc" "coldcc" "cc") 'words) . font-lock-keyword-face)
34   ;; Arithmetic and Logical Operators
35   `(,(regexp-opt '("add" "sub" "mul" "div" "rem" "and" "or" "xor"
36                    "setne" "seteq" "setlt" "setgt" "setle" "setge") 'words) . font-lock-keyword-face)
37   ;; Floating-point operators
38   `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'words) . font-lock-keyword-face)
39   ;; Special instructions
40   `(,(regexp-opt '("phi" "tail" "call" "cast" "select" "to" "shl" "shr" "fcmp" "icmp" "vaarg" "vanext") 'words) . font-lock-keyword-face)
41   ;; Control instructions
42   `(,(regexp-opt '("ret" "br" "switch" "invoke" "unwind" "unreachable") 'words) . font-lock-keyword-face)
43   ;; Memory operators
44   `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr") 'words) . font-lock-keyword-face)
45   )
46  "Syntax highlighting for LLVM"
47  )
48
49;; ---------------------- Syntax table ---------------------------
50;; Shamelessly ripped from jasmin.el
51;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
52
53(if (not llvm-mode-syntax-table)
54    (progn
55      (setq llvm-mode-syntax-table (make-syntax-table))
56      (mapcar (function (lambda (n)
57                          (modify-syntax-entry (aref n 0)
58                                               (aref n 1)
59                                               llvm-mode-syntax-table)))
60              '(
61                ;; whitespace (` ')
62                [?\^m " "]
63                [?\f  " "]
64                [?\n  " "]
65                [?\t  " "]
66                [?\   " "]
67                ;; word constituents (`w')
68                ;;[?<  "w"]
69                ;;[?>  "w"]
70                [?\%  "w"]
71                ;;[?_  "w  "]
72                ;; comments
73                [?\;  "< "]
74                [?\n  "> "]
75                ;;[?\r  "> "]
76                ;;[?\^m "> "]
77                ;; symbol constituents (`_')
78                ;; punctuation (`.')
79                ;; open paren (`(')
80                [?\( "("]
81                [?\[ "("]
82                [?\{ "("]
83                ;; close paren (`)')
84                [?\) ")"]
85                [?\] ")"]
86                [?\} ")"]
87                ;; string quote ('"')
88                [?\" "\""]
89                ))))
90
91;; --------------------- Abbrev table -----------------------------
92
93(defvar llvm-mode-abbrev-table nil
94  "Abbrev table used while in LLVM mode.")
95(define-abbrev-table 'llvm-mode-abbrev-table ())
96
97(defvar llvm-mode-hook nil)
98(defvar llvm-mode-map nil)   ; Create a mode-specific keymap.
99
100(if (not llvm-mode-map)
101    ()  ; Do not change the keymap if it is already set up.
102  (setq llvm-mode-map (make-sparse-keymap))
103  (define-key llvm-mode-map "\t" 'tab-to-tab-stop)
104  (define-key llvm-mode-map "\es" 'center-line)
105  (define-key llvm-mode-map "\eS" 'center-paragraph))
106
107
108(defun llvm-mode ()
109  "Major mode for editing LLVM source files.
110  \\{llvm-mode-map}
111  Runs llvm-mode-hook on startup."
112  (interactive)
113  (kill-all-local-variables)
114  (use-local-map llvm-mode-map)         ; Provides the local keymap.
115  (setq major-mode 'llvm-mode)
116
117  (make-local-variable 'font-lock-defaults)
118  (setq major-mode 'llvm-mode           ; This is how describe-mode
119                                        ;   finds the doc string to print.
120  mode-name "LLVM"                      ; This name goes into the modeline.
121  font-lock-defaults `(llvm-font-lock-keywords))
122
123  (setq local-abbrev-table llvm-mode-abbrev-table)
124  (set-syntax-table llvm-mode-syntax-table)
125  (setq comment-start ";")
126  (run-hooks 'llvm-mode-hook))          ; Finally, this permits the user to
127                                        ;   customize the mode with a hook.
128
129;; Associate .ll files with llvm-mode
130(setq auto-mode-alist
131   (append '(("\\.ll$" . llvm-mode)) auto-mode-alist))
132
133(provide 'llvm-mode)
134;; end of llvm-mode.el
135