8e45aace13
Used http://wcp.sdf-eu.org/software/npg-20150517T144652.tbz (sha256 42e88f6067128fbdb3a3d578371c9b0ee2a34f1d36daf80be8a520094132d828). There's no upstream repository nor a release since 2015, so importing seems to make a lot of sense. Since we can't subtree making any depot-related changes in a separate CL -- this is only the source import. Change-Id: I64c984ca0a84b9e48c6f496577ffccce1d7bdceb Reviewed-on: https://cl.tvl.fyi/c/depot/+/3377 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
79 lines
2.4 KiB
Common Lisp
79 lines
2.4 KiB
Common Lisp
;;; common.lisp --- common stuff
|
|
|
|
;;; Copyright (C) 2003-2006, 2009 by Walter C. Pelissero
|
|
|
|
;;; Author: Walter C. Pelissero <walter@pelissero.de>
|
|
;;; Project: NPG a Naive Parser Generator
|
|
|
|
#+cmu (ext:file-comment "$Module: common.lisp $")
|
|
|
|
;;; This library is free software; you can redistribute it and/or
|
|
;;; modify it under the terms of the GNU Lesser General Public License
|
|
;;; as published by the Free Software Foundation; either version 2.1
|
|
;;; of the License, or (at your option) any later version.
|
|
;;; This library 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
|
|
;;; Lesser General Public License for more details.
|
|
;;; You should have received a copy of the GNU Lesser General Public
|
|
;;; License along with this library; if not, write to the Free
|
|
;;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
;;; 02111-1307 USA
|
|
|
|
(in-package :naive-parser-generator)
|
|
|
|
(eval-when (:compile-toplevel :load-toplevel)
|
|
(defstruct grammar
|
|
rules
|
|
keywords
|
|
equal-p)
|
|
|
|
(defstruct rule
|
|
name
|
|
productions)
|
|
|
|
(defstruct (production (:conc-name prod-))
|
|
tokens
|
|
(tokens-length 0 :type fixnum)
|
|
action)
|
|
|
|
(defstruct token
|
|
type ; type of token (identifier, number, ...)
|
|
value ; its actual value
|
|
position) ; line/column in the input stream
|
|
) ; eval-when
|
|
|
|
(defmethod print-object ((obj rule) stream)
|
|
(format stream "#R(~A)" (rule-name obj)))
|
|
|
|
(defmethod print-object ((obj production) stream)
|
|
(format stream "#P(action: ~S)" (prod-action obj)))
|
|
|
|
(defmethod print-object ((obj token) stream)
|
|
(format stream "#T:~A=~S" (token-type obj) (token-value obj)))
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(declaim (inline make-rules-table find-rule add-rule))
|
|
|
|
(defun make-rules-table ()
|
|
(make-hash-table))
|
|
|
|
(defun find-rule (rule-name rules)
|
|
(gethash rule-name rules))
|
|
|
|
(defun add-rule (rule-name rule rules)
|
|
(setf (gethash rule-name rules) rule))
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(declaim (inline make-keywords-table find-keyword add-keyword))
|
|
|
|
(defun make-keywords-table ()
|
|
(make-hash-table :test 'equal))
|
|
|
|
(defun find-keyword (keyword-name keywords)
|
|
(gethash keyword-name keywords))
|
|
|
|
(defun add-keyword (keyword keywords)
|
|
(setf (gethash keyword keywords) t))
|