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first stab summarize-guile-TODO
From: |
Thien-Thi Nguyen |
Subject: |
first stab summarize-guile-TODO |
Date: |
Sat, 06 Apr 2002 11:18:51 -0800 |
just to get started... stay tuned.
thi
______________________________________________
#!/bin/sh
# aside from this initial boilerplate, this is actually -*- scheme -*- code
main='(module-ref (resolve-module '\''(scripts summarize-guile-TODO)) '\'main')'
exec ${GUILE-guile} -l $0 -c "(apply $main (cdr (command-line)))" "$@"
!#
;;; summarize-guile-TODO --- Display Guile TODO list in various ways
;; Copyright (C) 2002 Free Software Foundation, Inc.
;;
;; This program 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.
;;
;; This program 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 this software; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;; Boston, MA 02111-1307 USA
;;; Author: Thien-Thi Nguyen <address@hidden>
;;; Commentary:
;; Usage: summarize-guile-TODO TODOFILE
;;
;; The TODOFILE is typically Guile's (see workbook/tasks/README)
;; presumed to serve as our signal to ourselves (lest we want real
;; bosses hassling us) wrt to the overt message "items to do" as well as
;; the messages that can be inferred from its structure.
;;
;; This program reads TODOFILE and displays interpretations on its
;; structure, including registered markers and ownership, in various
;; ways. [TODO]
;;
;; A primary interest in any task is its parent task. The output
;; summarization by default lists every item and its parent chain.
;; Top-level parents are not items.
;;
;;
;; Usage from a Scheme program:
;; (summrize-guile-TODO . args) ; uses first arg only
;; TODO: Implement the various ways. (Patches welcome.)
;;; Code:
(define-module (scripts summarize-guile-TODO)
:use-module (scripts read-text-outline)
:export (summarize-guile-TODO))
(define put set-object-property!)
(define get object-property)
(define (hang-by-the-leaves trees)
(let ((leaves '()))
(letrec ((hang (lambda (tree parent)
(if (list? tree)
(begin
(put (car tree) 'parent parent)
(for-each (lambda (child)
(hang child (car tree)))
(cdr tree)))
(begin
(put tree 'parent parent)
(set! leaves (cons tree leaves)))))))
(for-each (lambda (tree)
(hang tree #f))
trees))
leaves))
(define (read-TODO file)
(hang-by-the-leaves
((make-text-outline-reader "(([ ][ ])*)([-+])(R*) *([^[]*)(.*)"
'((level-substring-divisor . 2)
(body-submatch-number . 5)
(extra-fields . ((status . 3)
(review? . 4)
(who . 6)))))
(open-file file "r"))))
(define (display-item item)
(format #t "status: ~A~A\nitem : ~A\n" (get item 'status)
(if (get item 'review?) "R" "") item)
(let loop ((parent (get item 'parent)) (indent 2))
(and parent
(begin
(format #t "under : ~A~A\n"
(make-string indent #\space)
parent)
(loop (get parent 'parent) (+ 2 indent))))))
(define (display-items items)
(for-each display-item items))
(define (summarize-guile-TODO . args)
(display-items (read-TODO (car args)))
#t) ; exit val
(define main summarize-guile-TODO)
;;; summarize-guile-TODO ends here
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