mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-17 10:06:13 +00:00
126 lines
4.6 KiB
EmacsLisp
126 lines
4.6 KiB
EmacsLisp
;;; awk-mode.el --- AWK code editing commands for Emacs
|
|
|
|
;; Copyright (C) 1988,94,96,2000 Free Software Foundation, Inc.
|
|
|
|
;; Maintainer: FSF
|
|
;; Keywords: unix, languages
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation; either version 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Sets up C-mode with support for awk-style #-comments and a lightly
|
|
;; hacked syntax table.
|
|
|
|
;;; Code:
|
|
|
|
(defvar awk-mode-syntax-table
|
|
(let ((st (make-syntax-table)))
|
|
(modify-syntax-entry ?\\ "\\" st)
|
|
(modify-syntax-entry ?\n "> " st)
|
|
(modify-syntax-entry ?\f "> " st)
|
|
(modify-syntax-entry ?\# "< " st)
|
|
;; / can delimit regexes or be a division operator. We assume that it is
|
|
;; more commonly used for regexes and fix the remaining cases with
|
|
;; `font-lock-syntactic-keywords'.
|
|
(modify-syntax-entry ?/ "\"" st)
|
|
(modify-syntax-entry ?* "." st)
|
|
(modify-syntax-entry ?+ "." st)
|
|
(modify-syntax-entry ?- "." st)
|
|
(modify-syntax-entry ?= "." st)
|
|
(modify-syntax-entry ?% "." st)
|
|
(modify-syntax-entry ?< "." st)
|
|
(modify-syntax-entry ?> "." st)
|
|
(modify-syntax-entry ?& "." st)
|
|
(modify-syntax-entry ?| "." st)
|
|
(modify-syntax-entry ?_ "_" st)
|
|
(modify-syntax-entry ?\' "\"" st)
|
|
st)
|
|
"Syntax table in use in `awk-mode' buffers.")
|
|
|
|
;; Regexps written with help from Peter Galbraith <galbraith@mixing.qc.dfo.ca>.
|
|
(defconst awk-font-lock-keywords
|
|
(eval-when-compile
|
|
(list
|
|
;;
|
|
;; Function names.
|
|
'("^[ \t]*\\(function\\)\\>[ \t]*\\(\\sw+\\)?"
|
|
(1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
|
|
;;
|
|
;; Variable names.
|
|
(cons (regexp-opt
|
|
'("ARGC" "ARGIND" "ARGV" "CONVFMT" "ENVIRON" "ERRNO"
|
|
"FIELDWIDTHS" "FILENAME" "FNR" "FS" "IGNORECASE" "NF" "NR"
|
|
"OFMT" "OFS" "ORS" "RLENGTH" "RS" "RSTART" "SUBSEP") 'words)
|
|
'font-lock-variable-name-face)
|
|
;;
|
|
;; Keywords.
|
|
(regexp-opt
|
|
'("BEGIN" "END" "break" "continue" "delete" "exit" "else" "for"
|
|
"getline" "if" "next" "print" "printf" "return" "while") 'words)
|
|
;;
|
|
;; Builtins.
|
|
(list (regexp-opt
|
|
'("atan2" "close" "cos" "ctime" "exp" "gsub" "index" "int"
|
|
"length" "log" "match" "rand" "sin" "split" "sprintf"
|
|
"sqrt" "srand" "sub" "substr" "system" "time"
|
|
"tolower" "toupper") 'words)
|
|
1 'font-lock-builtin-face)
|
|
;;
|
|
;; Operators. Is this too much?
|
|
(cons (regexp-opt '("&&" "||" "<=" "<" ">=" ">" "==" "!=" "!~" "~"))
|
|
'font-lock-constant-face)
|
|
))
|
|
"Default expressions to highlight in AWK mode.")
|
|
|
|
(require 'syntax)
|
|
|
|
(defconst awk-font-lock-syntactic-keywords
|
|
;; `/' is mostly used for /.../ regular expressions, but is also
|
|
;; used as a division operator. Distinguishing between the two is
|
|
;; a pain in the youknowwhat.
|
|
;; '(("\\(^\\|[<=>-+*%/!^,~(?:|&]\\)\\s-*\\(/\\)\\([^/\n\\]\\|\\\\.\\)*\\(/\\)"
|
|
;; (2 "\"") (4 "\"")))
|
|
'(("[^<=>-+*%/!^,~(?:|& \t\n\f]\\s-*\\(/\\)"
|
|
(1 (unless (nth 3 (syntax-ppss (match-beginning 1))) "."))))
|
|
"Syntactic keywords for `awk-mode'.")
|
|
|
|
;; No longer autoloaded since it might clobber the autoload directive in CC Mode.
|
|
(define-derived-mode awk-mode c-mode "AWK"
|
|
"Major mode for editing AWK code.
|
|
This is much like C mode except for the syntax of comments. Its keymap
|
|
inherits from C mode's and it has the same variables for customizing
|
|
indentation. It has its own abbrev table and its own syntax table.
|
|
|
|
Turning on AWK mode runs `awk-mode-hook'."
|
|
(set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter))
|
|
(set (make-local-variable 'paragraph-separate) paragraph-start)
|
|
(set (make-local-variable 'comment-start) "# ")
|
|
(set (make-local-variable 'comment-end) "")
|
|
(set (make-local-variable 'comment-start-skip) "#+ *")
|
|
(setq font-lock-defaults '(awk-font-lock-keywords
|
|
nil nil ((?_ . "w")) nil
|
|
(parse-sexp-lookup-properties . t)
|
|
(font-lock-syntactic-keywords
|
|
. awk-font-lock-syntactic-keywords))))
|
|
|
|
(provide 'awk-mode)
|
|
|
|
;;; arch-tag: 14ebc02a-b3c5-4e76-8034-6ca9ac0af0e6
|
|
;;; awk-mode.el ends here
|