* Added (X)Emacs mode for TableGen description files

* Added README that describes how to use the mode files
* Associated files with .llx extension with llvm-mode

llvm-svn: 7738

3 files changed, 142 insertions, 1 deletions

diff --git a/llvm/utils/emacs/README b/llvm/utils/emacs/README
new file mode 100644
index 00000000000..e83eeae4b07
--- /dev/null
+++ b/llvm/utils/emacs/README
@@ -0,0 +1,27 @@
+-*- llvm/utils/emacs/README -*-
+
+These are syntax highlighting files for the Emacs and XEmacs editors. Included
+are:
+
+* llvm-mode.el
+
+  Syntax highlighting mode for LLVM assembly files. To use, add this code to
+  your ~/.emacs :
+
+  (setq load-path
+    (cons (expand-file-name "path-to-llvm/utils/emacs") load-path))
+  (require 'llvm-mode)
+  
+* tablegen-mode.el
+
+  Syntax highlighting mode for TableGen description files. To use, add this code
+  to your ~/.emacs:
+
+  (setq load-path
+    (cons (expand-file-name "path-to-llvm/utils/emacs") load-path))
+  (require 'tablegen-mode)
+
+
+Note: If you notice missing or incorrect syntax highlighting, please contact
+<llvmbugs [at] cs.uiuc.edu>; if you wish to provide a patch to improve the
+functionality, it will be most appreciated. Thank you.
diff --git a/llvm/utils/emacs/llvm-mode.el b/llvm/utils/emacs/llvm-mode.el
index c1a317e4ad0..93247cc4323 100644
--- a/llvm/utils/emacs/llvm-mode.el
+++ b/llvm/utils/emacs/llvm-mode.el
@@ -121,7 +121,7 @@
 
 ;; Associate .ll files with llvm-mode
 (setq auto-mode-alist
-      (append '(("\\.ll$" . llvm-mode)) auto-mode-alist))
+   (append '(("\\.ll$" . llvm-mode) ("\\.llx$" . llvm-mode)) auto-mode-alist))
 
 (provide 'llvm-mode)
 ;; end of llvm-mode.el
diff --git a/llvm/utils/emacs/tablegen-mode.el b/llvm/utils/emacs/tablegen-mode.el
new file mode 100644
index 00000000000..9d08b86b572
--- /dev/null
+++ b/llvm/utils/emacs/tablegen-mode.el
@@ -0,0 +1,114 @@
+;; Maintainer:  The LLVM team, http://llvm.cs.uiuc.edu/
+;; Description: Major mode for TableGen description files (part of LLVM project)
+;; Updated:     2003-08-11
+
+;; Create mode-specific tables.
+(defvar tablegen-mode-syntax-table nil
+  "Syntax table used while in TableGen mode.")
+
+(defvar tablegen-font-lock-keywords
+  (list
+   ;; Comments
+   '("\/\/.*" . font-lock-comment-face)
+   ;; Strings
+   '("\"[^\"]+\"" . font-lock-string-face)
+   ;; Hex constants
+   '("0x[0-9A-Fa-f]+" . font-lock-preprocessor-face)
+   ;; Binary constants
+   '("0b[01]+" . font-lock-preprocessor-face)
+   ;; Integer literals
+   '("[-]?[0-9]+" . font-lock-preprocessor-face)
+   ;; Floating point constants
+   '("[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?" . font-lock-preprocessor-face)
+   ;; Keywords
+   '("include\\|def\\|let\\|in\\|code\\|dag\\|field" . font-lock-keyword-face)
+   ;; Types
+   '("class\\|int\\|string\\|list\\|bits?" . font-lock-type-face)
+   )
+  "Syntax highlighting for TableGen"
+  )
+
+;; ---------------------- Syntax table ---------------------------
+;; Shamelessly ripped from jasmin.el
+;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
+
+(if (not tablegen-mode-syntax-table)
+    (progn
+      (setq tablegen-mode-syntax-table (make-syntax-table))
+      (mapcar (function (lambda (n)
+                          (modify-syntax-entry (aref n 0)
+                                               (aref n 1)
+                                               tablegen-mode-syntax-table)))
+              '(
+                ;; whitespace (` ')
+                [?\^m " "]
+                [?\f  " "]
+                [?\n  " "]
+                [?\t  " "]
+                [?\   " "]
+                ;; word constituents (`w')
+                ;;[?<  "w"]
+                ;;[?>  "w"]
+                [?\%  "w"]
+                ;;[?_  "w  "]
+                ;; comments
+                [?\;  "< "]
+                [?\n  "> "]
+                ;;[?\r  "> "]
+                ;;[?\^m "> "]
+                ;; symbol constituents (`_')
+                ;; punctuation (`.')
+                ;; open paren (`(')
+                [?\( "("]
+                [?\[ "("]
+                [?\{ "("]
+                ;; close paren (`)')
+                [?\) ")"]
+                [?\] ")"]
+                [?\} ")"]
+                ;; string quote ('"')
+                [?\" "\""]
+                ))))
+
+;; --------------------- Abbrev table -----------------------------
+
+(defvar tablegen-mode-abbrev-table nil
+  "Abbrev table used while in TableGen mode.")
+(define-abbrev-table 'tablegen-mode-abbrev-table ())
+
+(defvar tablegen-mode-hook nil)
+(defvar tablegen-mode-map nil)   ; Create a mode-specific keymap.
+
+(if (not tablegen-mode-map)
+    ()  ; Do not change the keymap if it is already set up.
+  (setq tablegen-mode-map (make-sparse-keymap))
+  (define-key tablegen-mode-map "\t" 'tab-to-tab-stop)
+  (define-key tablegen-mode-map "\es" 'center-line)
+  (define-key tablegen-mode-map "\eS" 'center-paragraph))
+
+
+(defun tablegen-mode ()
+  "Major mode for editing TableGen description files.
+  \\{tablegen-mode-map}
+  Runs tablegen-mode-hook on startup."
+  (interactive)
+  (kill-all-local-variables)
+  (use-local-map tablegen-mode-map)         ; Provides the local keymap.
+  (setq major-mode 'tablegen-mode)          
+
+  (make-local-variable	'font-lock-defaults)
+  (setq major-mode 'tablegen-mode           ; This is how describe-mode
+                                            ;   finds the doc string to print.
+	mode-name "TableGen"                      ; This name goes into the modeline.
+	font-lock-defaults `(tablegen-font-lock-keywords))
+
+  (setq local-abbrev-table tablegen-mode-abbrev-table)
+  (set-syntax-table tablegen-mode-syntax-table)
+  (run-hooks 'tablegen-mode-hook))          ; Finally, this permits the user to
+                                            ;   customize the mode with a hook.
+
+;; Associate .td files with tablegen-mode
+(setq auto-mode-alist (append '(("\\.td$" . tablegen-mode)) auto-mode-alist))
+
+(provide 'tablegen-mode)
+;; end of tablegen-mode.el