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org-fc-awk.el
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org-fc-awk.el
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;;; org-awk.el --- AWK based flashcard indexing -*- lexical-binding: t; -*-
;; Copyright (C) 2020-2021 Leon Rische
;; Author: Leon Rische <[email protected]>
;; Url: https://www.leonrische.me/pages/org_flashcards.html
;; Package-requires: ((emacs "26.3") (org "9.3"))
;; Version: 0.1.0
;; 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 3 of the License, 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 program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;
;;
;;; Code:
(require 'org-fc-core)
(require 'org-fc-type-cloze)
;;;; Shell wrappers
(defun org-fc-awk--find (paths &optional non-recursive)
"Generate shell code to search PATHS for org files.
Matches all .org files ignoring ones with names don't start with
a '.' to exclude temporary / backup files.
With the '-L' option, 'find' follows symlinks."
(format
"find -L %s %s -name \"*.org\" -not -name \".*\" -print0"
(mapconcat
(lambda (path) (shell-quote-argument (expand-file-name path)))
paths " ")
(if non-recursive "-mindepth 1 -maxdepth 1" "")))
(defun org-fc-awk--indexer-variables ()
"Variables to pass to indexer scripts."
`(("fc_tag" . ,org-fc-flashcard-tag)
("suspended_tag" . ,org-fc-suspended-tag)
("type_property" . ,org-fc-type-property)
("cloze_type_property" . ,org-fc-type-cloze-type-property)
("created_property" . ,org-fc-created-property)
("review_data_drawer" . ,org-fc-review-data-drawer)))
(cl-defun org-fc-awk--command (file &optional &key variables input)
"Generate the shell command for calling awk.
The script is called on FILE with (key . value) pairs VARIABLES.
If UTILS is set to a non-nil value, the shared util file is
included, too. If INPUT is set to a string, use that
file (absolute path) as input."
(concat "gawk "
(mapconcat
(lambda (kv) (format "-v %s=%s" (car kv) (cdr kv)))
variables
" ")
" -f " (expand-file-name "awk/utils.awk" org-fc-source-path)
" -f " (expand-file-name file org-fc-source-path)
" " input))
(defun org-fc-awk--pipe (&rest commands)
"Combine COMMANDS with shell pipes."
(mapconcat 'identity commands " | "))
(defun org-fc-awk--xargs (command)
"Generate the shell command for calling COMMAND with xargs."
(concat "xargs -0 " command))
;; Given two tag strings,
;; one inherited and one for the current card,
;; combine them respecting `org-use-tag-inheritance'
;; and `org-tags-exclude-from-inheritance'.
;; Inheritance code is based on `org-get-tags'
(defun org-fc-awk-combine-tags (itags ltags)
"Simulate org tag inheritance on ITAGS and LTAGS.
ITAGS and LTAGS are strings `\":tag1:tag2:\"'"
(delete-dups
(append
(org-remove-uninherited-tags (split-string itags ":" t))
(split-string ltags ":" t))))
(defun org-fc-awk-flatten-index (index)
"Remove the file-level of INDEX."
(mapcan
(lambda (file)
(mapcar
(lambda (card)
(plist-put card :path (plist-get file :path))
(plist-put card :filetitle (plist-get file :title)))
(plist-get file :cards)))
index))
(defun org-fc-awk-index (paths &optional filter non-recursive)
"Find cards in PATHS matching an optional FILTER predicate.
FILTER can be either nil or a function taking a single card as
its input."
(let ((index (org-fc-awk-index-paths paths non-recursive)))
(if filter
(cl-remove-if-not filter index)
index)))
(defun org-fc-awk-index-paths (paths &optional non-recursive)
"Generate a list of all cards and positions in PATHS."
(let ((output (shell-command-to-string
(org-fc-awk--pipe
(org-fc-awk--find paths non-recursive)
(org-fc-awk--xargs
(org-fc-awk--command
"awk/index.awk"
:variables (org-fc-awk--indexer-variables)))))))
(if (string-prefix-p "(" output)
(org-fc-awk-flatten-index
(mapcar
(lambda (file)
(plist-put file :cards
(mapcar
(lambda (card)
;; Combine tags
(plist-put
card :tags
(org-fc-awk-combine-tags
(concat (plist-get file :filetags)
(plist-get card :inherited-tags))
(if (plist-get card :filelevel)
(plist-get file :filetags)
(plist-get card :local-tags))))
(plist-put card :suspended
(if (plist-get card :filelevel)
(member org-fc-suspended-tag
(plist-get card :tags))
(plist-get card :suspended))))
(plist-get file :cards))))
(read output)))
(error "Org-fc shell error: %s" output))))
(defun org-fc-awk-stats-reviews ()
"Statistics for all card reviews.
Return nil there is no history file."
(if (file-exists-p org-fc-review-history-file)
(let ((output
(shell-command-to-string
(org-fc-awk--command
"awk/stats_reviews.awk"
:input org-fc-review-history-file
:variables `(("min_box" . ,org-fc-stats-review-min-box))))))
(if (string-prefix-p "(" output)
(read output)
(error "Org-fc shell error: %s" output)))))
(defun org-fc-awk-history-for-id (id)
"Return all history of ID from `org-fc-review-history-file'"
(require 'org-fc-algo)
(if (file-exists-p org-fc-review-history-file)
(let ((output
(shell-command-to-string
(org-fc-awk--command
"awk/index_history.awk"
:input org-fc-review-history-file
:variables `(("card_id" . ,(shell-quote-argument id)))))))
(if (string-prefix-p "(" output)
(mapcar (lambda (output)
(let* ((params (org-fc-algo-params (read (plist-get output :algo))))
(values (plist-get output :params)))
(plist-put output :params
(cl-loop for k in params for v in values
append (list (intern (concat ":" k)) v)))
output))
(read output))
(error "Org-fc shell error: %s" output)))))
;;; Footer
(provide 'org-fc-awk)
;;; org-fc-awk.el ends here