Megatest

(use sxml-modifications)
(use regex)
(use srfi-69)
(use regex-case)
(use posix)

;; Read a non-compressed gnumeric file
(define (refdb:read-gnumeric-xml fname)
  (with-input-from-file fname
    (lambda ()
      (ssax:xml->sxml (current-input-port) '()))))

(define (find-section dat section #!key (depth 0))
  (let loop ((hed   (car dat))
	     (tal   (cdr dat)))   

		     (car section)
		     #f))
	       dat)))

(define (string->safe-filename str)
  (string-substitute (regexp " ") "_" str #t))

(define (sheet->refdb dat targdir)
  (let* ((sheet-name  (car (find-section dat 'http://www.gnumeric.org/v10.dtd:Name)))
	 ;; (safe-name   (string->safe-filename sheet-name))
	 (cells       (find-section dat 'http://www.gnumeric.org/v10.dtd:Cells))
	 (remaining   (remove-section (remove-section dat 'http://www.gnumeric.org/v10.dtd:Name)
				      'http://www.gnumeric.org/v10.dtd:Cells))
	 (rownums     (make-hash-table))  ;; num -> name
	 (colnums     (make-hash-table))  ;; num -> name

  (let ((res (read-file fname read)))
    (if (null? res)
	(begin
	  (print "ERROR: file " fname " is malformed for read")
	  #f)
	(car res))))

;; Write an sxml gnumeric workbook to a refdb directory structure.
;;
(define (extract-refdb dat targdir)
  (create-directory (conc targdir "/sxml") #t)
  (let* ((wrkbk       (find-section   dat   'http://www.gnumeric.org/v10.dtd:Workbook))
	 (wrk-rem     (remove-section dat   'http://www.gnumeric.org/v10.dtd:Workbook))
	 (sheets      (find-section   wrkbk 'http://www.gnumeric.org/v10.dtd:Sheets))
	 (sht-rem     (remove-section wrkbk 'http://www.gnumeric.org/v10.dtd:Sheets))
	 (sheet-names (map (lambda (sheet)
			     (sheet->refdb sheet targdir))
			   sheets)))
    (sxml->file wrk-rem (conc targdir "/sxml/workbook.sxml"))
    (sxml->file sht-rem (conc targdir "/sxml/sheets.sxml"))
    (with-output-to-file (conc targdir "/sheet-names.cfg")
      (lambda ()
	(map print sheet-names)))))

(define (read-gnumeric-file fname)
  (if (not (string-match (regexp ".*.gnumeric$") fname))
      (begin
	(print "ERROR: Attempt to import gnumeric file with extention other than .gnumeric")
	(exit))
      (let ((tmpf (create-temporary-file (pathname-strip-directory fname))))
	(system (conc " gunzip > " tmpf " < " fname))
	(let ((res (refdb:read-gnumeric-xml tmpf)))
	  (delete-file tmpf)
	  res))))

(define (import-gnumeric-file fname targdir)
  (extract-refdb (read-gnumeric-file fname) targdir))

;; Write a gnumeric compressed xml spreadsheet from a refdb directory structure.
;;
(define (refdb-export dbdir fname)
  (let* ((sxml-dat (refdb->sxml dbdir))
	 (tmpf     (create-temporary-file (pathname-strip-directory fname)))
	 (tmpgzf   (conc tmpf ".gz")))
    (with-output-to-file tmpf
      (lambda ()
	(print (sxml-serializer#serialize-sxml sxml-dat ns-prefixes: (list (cons 'gnm "http://www.gnumeric.org/v10.dtd"))))))
    (system (conc "gzip " tmpf))
    (file-copy tmpgzf fname #t)

			      (value    (caddr item))
			      (val-type (get-value-type value exprs)))
			 (list 'http://www.gnumeric.org/v10.dtd:Cell
			       (list '@ val-type (list 'Row (conc row-num)) (list 'Col (conc col-num)))
			       value)))
		     (append rowdat coldat dat))))))
    
(define (refdb->sxml dbdir)
  (let* ((sht-names (read-file (conc dbdir "/sheet-names.cfg")  read-line))
	 (wrk-rem   (file->sxml (conc dbdir "/sxml/workbook.sxml")))
	 (sht-rem   (file->sxml (conc dbdir "/sxml/sheets.sxml")))
	 (sheets    (fold (lambda (sheetname res)
			    (let* ((sheetdat (read-dat (conc dbdir "/" sheetname ".dat")))
				   (cells    (dat->cells sheetdat))
				   (sht-meta (file->sxml (conc dbdir "/sxml/" sheetname ".sxml"))))

		    (cdr tal)
		    new-rownames
		    new-colnames
		    (if (> curr-rownum rownum) curr-rownum rownum)
		    (if (> curr-colnum colnum) curr-colnum colnum)
		    ))))))
(define help
  (conc "Usage: refdb action params ...

Note: refdbdir is a path to the directory containg sheet-names.cfg

  import filename.gnumeric refdbdir   : Import a gnumeric file into a txt db directory
  edit   refdbdir                     : Edit a refdbdir using gnumeric.
  lookup refdbdir sheetname row col   : Look up a value in the text db   
  ls refdbdir                         : List the keys for specified level 

Part of the Megatest tool suite. Learn more at http://www.kiatoa.com/fossils/megatest"))

(define (list-sheets path)
  ;; (cond
  ;;  ((and path (not sheet)(not row)(not col))
  (if (file-exists? path)
      (read-file (conc path "/sheet-names.cfg") read-line)
      '()))
;; ((and path sheet (not row)(not col))

(define (lookup path sheet row col)
  (let ((fname (conc path "/" sheet ".dat")))
    (if (file-exists? fname)
	(let ((dat (read-dat fname)))
	  (if (null? dat)
	      #f
	      (let loop ((hed (car dat))
			 (tal (cdr dat)))
		(if (and (equal? row (car hed))
			 (equal? col (cadr hed)))
		    (caddr hed)
		    (if (null? tal)
			#f
			(loop (car tal)(cdr tal)))))))
	#f)))

(define (edit-refdb path)
  (let* ((dbname  (pathname-strip-directory path))
	 (tmpf    (conc (create-temporary-file dbname) ".gnumeric")))
    (if (file-exists? (conc path "/sheet-names.cfg"))
	(refdb-export path tmpf))
    (let ((pid (process-run "gnumeric" (list tmpf))))
      (process-wait pid)
      (import-gnumeric-file tmpf path))))

(define (process-action action-str . param)
  (let ((num-params (length param))
	(action     (string->symbol action-str)))
    (cond
     ((eq? num-params 1)
      (case action
	((edit)
	 (edit-refdb (car param)))
	((ls)
	 (map print (list-sheets (car param))))))
     ((eq? num-params 2)
      (case action
	((import)
	 (let ((fname     (car param))
	       (targname  (cadr param)))
	   (import-gnumeric-file fname targname)))))
     ((eq? num-params 4)

     ((>= (length rema) 2)
      (apply process-action (car rema)(cdr rema)))
     (else (print help)))))

(main)

#|  
 (define x (refdb:read-gnumeric-xml "testdata-stripped.xml"))



;; Write out sxml
(with-output-to-file "testdata.sxml" (lambda()(pp x)))