;;; UMLS-Parse General
;;; General purpose Lisp Routines for parsing UMLS files
;;;   and inserting into SQL databases
;;;
;;; Copyright (c) 2001 Kevin M. Rosenberg, M.D.
;;; $Id: parse-macros.lisp,v 1.1 2002/10/05 20:17:14 kevin Exp $

(in-package :umlisp)


(defmacro with-umls-file ((line filename) &body body)
"Opens a UMLS and processes each parsed line with (body) argument"
  (let ((ustream (gensym)))
    `(with-open-file
      (,ustream (umls-pathname ,filename)
		:direction :input :if-exists :overwrite)
      (do ((,line (read-umls-line ,ustream) (read-umls-line ,ustream)))
	  ((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))
	(buffer (gensym)))
    `(let ((,buffer (make-fields-buffer)))
       (with-open-file
	   (,ustream (umls-pathname ,filename)
	    :direction :input :if-exists :overwrite)
	 (do ((,line (read-buffered-fields ,buffer ,ustream) (read-buffered-fields ,buffer ,ustream)))
	     ((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))
	(buffer (gensym)))
    `(let ((,buffer (make-fields-buffer2)))
       (with-open-file
	   (,ustream (umls-pathname ,filename)
	    :direction :input :if-exists :overwrite)
	 (do ((,line (read-buffered-fields2 ,buffer ,ustream) (read-buffered-fields2 ,buffer ,ustream)))
	     ((eq ,line 'eof) t)
	   ,@body)))))