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    '("\\bvoid\\b\\|\\bi[0-9]+\\b\\|\\float\\b\\|\\bdouble\\b\\|\\btype\\b\\|\\blabel\\b\\|\\bopaque\\b" . 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    '("\\bbegin\\b\\|\\bend\\b\\|\\btrue\\b\\|\\bfalse\\b\\|\\bzeroinitializer\\b\\|\\bdeclare\\b\\|\\bdefine\\b\\|\\bglobal\\b\\|\\bconstant\\b\\|\\bconst\\b\\|\\binternal\\b\\|\\blinkonce\\b\\|\\blinkonce_odr\\b\\|\\bweak\\b\\|\\bweak_odr\\b\\|\\bappending\\b\\|\\buninitialized\\b\\|\\bimplementation\\b\\|\\b\\.\\.\\.\\b\\|\\bnull\\b\\|\\bundef\\b\\|\\bto\\b\\|\\bexcept\\b\\|\\bnot\\b\\|\\btarget\\b\\|\\bendian\\b\\|\\blittle\\b\\|\\bbig\\b\\|\\bpointersize\\b\\|\\bdeplibs\\b\\|\\bvolatile\\b\\|\\bfastcc\\b\\|\\bcoldcc\\b\\|\\bcc\\b" . font-lock-keyword-face)
  31    ;; Arithmetic and Logical Operators
  32    '("\\badd\\b\\|\\bsub\\b\\|\\bmul\\b\\|\\bdiv\\b\\|\\brem\\b\\|\\band\\b\\|\\bor\\b\\|\\bxor\\b\\|\\bset\\(ne\\b\\|\\beq\\b\\|\\blt\\b\\|\\bgt\\b\\|\\ble\\b\\|\\bge\\b\\)" . font-lock-keyword-face)
  33    ;; Special instructions
  34    '("\\bphi\\b\\|\\btail\\b\\|\\bcall\\b\\|\\bcast\\b\\|\\bselect\\b\\|\\bto\\b\\|\\bshl\\b\\|\\bshr\\b\\|\\bvaarg\\b\\|\\bvanext\\b" . font-lock-keyword-face)
  35    ;; Control instructions
  36    '("\\bret\\b\\|\\bbr\\b\\|\\bswitch\\b\\|\\binvoke\\b\\|\\bunwind\\b\\|\\bunreachable\\b" . font-lock-keyword-face)
  37    ;; Memory operators
  38    '("\\bmalloc\\b\\|\\balloca\\b\\|\\bfree\\b\\|\\bload\\b\\|\\bstore\\b\\|\\bgetelementptr\\b" . font-lock-keyword-face)
  39    )
  40   "Syntax highlighting for LLVM"
  41   )
  42
  43 ;; ---------------------- Syntax table ---------------------------
  44 ;; Shamelessly ripped from jasmin.el
  45 ;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
  46
  47 (if (not llvm-mode-syntax-table)
  48     (progn
  49       (setq llvm-mode-syntax-table (make-syntax-table))
  50       (mapcar (function (lambda (n)
  51                           (modify-syntax-entry (aref n 0)
  52                                                (aref n 1)
  53                                                llvm-mode-syntax-table)))
  54               '(
  55                 ;; whitespace (` ')
  56                 [?\^m " "]
  57                 [?\f  " "]
  58                 [?\n  " "]
  59                 [?\t  " "]
  60                 [?\   " "]
  61                 ;; word constituents (`w')
  62                 ;;[?<  "w"]
  63                 ;;[?>  "w"]
  64                 [?\%  "w"]
  65                 ;;[?_  "w  "]
  66                 ;; comments
  67                 [?\;  "< "]
  68                 [?\n  "> "]
  69                 ;;[?\r  "> "]
  70                 ;;[?\^m "> "]
  71                 ;; symbol constituents (`_')
  72                 ;; punctuation (`.')
  73                 ;; open paren (`(')
  74                 [?\( "("]
  75                 [?\[ "("]
  76                 [?\{ "("]
  77                 ;; close paren (`)')
  78                 [?\) ")"]
  79                 [?\] ")"]
  80                 [?\} ")"]
  81                 ;; string quote ('"')
  82                 [?\" "\""]
  83                 ))))
  84
  85 ;; --------------------- Abbrev table -----------------------------
  86
  87 (defvar llvm-mode-abbrev-table nil
  88   "Abbrev table used while in LLVM mode.")
  89 (define-abbrev-table 'llvm-mode-abbrev-table ())
  90
  91 (defvar llvm-mode-hook nil)
  92 (defvar llvm-mode-map nil)   ; Create a mode-specific keymap.
  93
  94 (if (not llvm-mode-map)
  95     ()  ; Do not change the keymap if it is already set up.
  96   (setq llvm-mode-map (make-sparse-keymap))
  97   (define-key llvm-mode-map "\t" 'tab-to-tab-stop)
  98   (define-key llvm-mode-map "\es" 'center-line)
  99   (define-key llvm-mode-map "\eS" 'center-paragraph))
 100
 101
 102 (defun llvm-mode ()
 103   "Major mode for editing LLVM source files.
 104   \\{llvm-mode-map}
 105   Runs llvm-mode-hook on startup."
 106   (interactive)
 107   (kill-all-local-variables)
 108   (use-local-map llvm-mode-map)         ; Provides the local keymap.
 109   (setq major-mode 'llvm-mode)
 110
 111   (make-local-variable 'font-lock-defaults)
 112   (setq major-mode 'llvm-mode           ; This is how describe-mode
 113                                         ;   finds the doc string to print.
 114   mode-name "LLVM"                      ; This name goes into the modeline.
 115   font-lock-defaults `(llvm-font-lock-keywords))
 116
 117   (setq local-abbrev-table llvm-mode-abbrev-table)
 118   (set-syntax-table llvm-mode-syntax-table)
 119   (setq comment-start ";")
 120   (run-hooks 'llvm-mode-hook))          ; Finally, this permits the user to
 121                                         ;   customize the mode with a hook.
 122
 123 ;; Associate .ll files with llvm-mode
 124 (setq auto-mode-alist
 125    (append '(("\\.ll$" . llvm-mode) ("\\.llx$" . llvm-mode)) auto-mode-alist))
 126
 127 (provide 'llvm-mode)
 128 ;; end of llvm-mode.el