utils/emacs/llvm-mode.el

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