;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: umlisp -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name:         parse-macros.lisp
;;;; Purpose:      Macros for UMLS file parsing
;;;; Author:       Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
;;;; $Id: parse-macros.lisp,v 1.7 2003/05/07 21:57:06 kevin Exp $
;;;;
;;;; This file, part of UMLisp, is
;;;;    Copyright (c) 2000-2002 by Kevin M. Rosenberg, M.D.
;;;;
;;;; UMLisp users are granted the rights to distribute and use this software
;;;; as governed by the terms of the GNU General Public License.
;;;; *************************************************************************

(in-package #:umlisp)

(eval-when (:compile-toplevel)
  (declaim (optimize (speed 3) (safety 1) (compilation-speed 0) (debug 3))))

(defmacro with-umls-file ((line filename) &body body)
"Opens a UMLS and processes each parsed line with (body) argument"
  (let ((ustream (gensym "STRM-"))
	(eof (gensym "EOF-")))
    `(let ((,eof (gensym "EOFSYM-")))
      (with-open-file
	  (,ustream (umls-pathname ,filename) :direction :input)
	(do ((,line (read-umls-line ,ustream ,eof)
		    (read-umls-line ,ustream ,eof)))
	    ((eq ,line ,eof) t)
	  ,@body)))))

(defmacro with-buffered-umls-file ((line filename) &body body)
  "Opens a UMLS and processes each parsed line with (body) argument"
  (let ((ustream (gensym "STRM-"))
	(buffer (gensym "BUF-"))
	(eof (gensym "EOF-")))
    `(let ((,buffer (make-fields-buffer))
	   (,eof (gensym "EOFSYM-")))
      (with-open-file
	  (,ustream (umls-pathname ,filename) :direction :input)
	(do ((,line (read-buffered-fields ,buffer ,ustream #\| ,eof)
		    (read-buffered-fields ,buffer ,ustream #\| ,eof)))
	    ((eq ,line ,eof) t)
	  ,@body)))))

(defmacro with-buffered2-umls-file ((line filename) &body body)
  "Opens a UMLS and processes each parsed line with (body) argument"
  (let ((ustream (gensym "STRM-"))
	(buffer (gensym "BUF-"))
	(eof (gensym "EOF-")))
    `(let ((,buffer (make-fields-buffer2))
	   (,eof (gensym "EOFSYM-")))
      (with-open-file
	  (,ustream (umls-pathname ,filename)
	   :direction :input :if-exists :overwrite)
	(do ((,line (read-buffered-fields ,buffer ,ustream #\| ,eof)
		    (read-buffered-fields ,buffer ,ustream #\| ,eof)))
	    ((eq ,line ,eof) t)
	  ,@body)))))