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ab82d6ae25
* lisp/ox-ascii.el (org-ascii-template--document-title): Find width of title with `string-width' instead of counting characters. Fixes: #48148 Reported-by: Shingo Tanaka <shingo.fg8@gmail.com>
2203 lines
78 KiB
EmacsLisp
2203 lines
78 KiB
EmacsLisp
;;; ox-ascii.el --- ASCII Back-End for Org Export Engine -*- lexical-binding: t; -*-
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;; Copyright (C) 2012-2021 Free Software Foundation, Inc.
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;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; This library implements an ASCII back-end for Org generic exporter.
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;; See Org manual for more information.
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;;; Code:
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(require 'ox)
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(require 'ox-publish)
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(require 'cl-lib)
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;;; Function Declarations
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(declare-function aa2u "ext:ascii-art-to-unicode" ())
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;;; Define Back-End
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;;
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;; The following setting won't allow modifying preferred charset
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;; through a buffer keyword or an option item, but, since the property
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;; will appear in communication channel nonetheless, it allows
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;; overriding `org-ascii-charset' variable on the fly by the ext-plist
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;; mechanism.
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;;
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;; We also install a filter for headlines and sections, in order to
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;; control blank lines separating them in output string.
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(org-export-define-backend 'ascii
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'((bold . org-ascii-bold)
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(center-block . org-ascii-center-block)
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(clock . org-ascii-clock)
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(code . org-ascii-code)
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(drawer . org-ascii-drawer)
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(dynamic-block . org-ascii-dynamic-block)
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(entity . org-ascii-entity)
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(example-block . org-ascii-example-block)
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(export-block . org-ascii-export-block)
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(export-snippet . org-ascii-export-snippet)
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(fixed-width . org-ascii-fixed-width)
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(footnote-reference . org-ascii-footnote-reference)
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(headline . org-ascii-headline)
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(horizontal-rule . org-ascii-horizontal-rule)
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(inline-src-block . org-ascii-inline-src-block)
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(inlinetask . org-ascii-inlinetask)
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(inner-template . org-ascii-inner-template)
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(italic . org-ascii-italic)
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(item . org-ascii-item)
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(keyword . org-ascii-keyword)
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(latex-environment . org-ascii-latex-environment)
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(latex-fragment . org-ascii-latex-fragment)
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(line-break . org-ascii-line-break)
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(link . org-ascii-link)
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(node-property . org-ascii-node-property)
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(paragraph . org-ascii-paragraph)
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(plain-list . org-ascii-plain-list)
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(plain-text . org-ascii-plain-text)
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(planning . org-ascii-planning)
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(property-drawer . org-ascii-property-drawer)
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(quote-block . org-ascii-quote-block)
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(radio-target . org-ascii-radio-target)
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(section . org-ascii-section)
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(special-block . org-ascii-special-block)
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(src-block . org-ascii-src-block)
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(statistics-cookie . org-ascii-statistics-cookie)
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(strike-through . org-ascii-strike-through)
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(subscript . org-ascii-subscript)
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(superscript . org-ascii-superscript)
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(table . org-ascii-table)
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(table-cell . org-ascii-table-cell)
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(table-row . org-ascii-table-row)
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(target . org-ascii-target)
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(template . org-ascii-template)
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(timestamp . org-ascii-timestamp)
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(underline . org-ascii-underline)
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(verbatim . org-ascii-verbatim)
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(verse-block . org-ascii-verse-block))
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:menu-entry
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'(?t "Export to Plain Text"
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((?A "As ASCII buffer"
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(lambda (a s v b)
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(org-ascii-export-as-ascii a s v b '(:ascii-charset ascii))))
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(?a "As ASCII file"
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(lambda (a s v b)
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(org-ascii-export-to-ascii a s v b '(:ascii-charset ascii))))
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(?L "As Latin1 buffer"
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(lambda (a s v b)
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(org-ascii-export-as-ascii a s v b '(:ascii-charset latin1))))
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(?l "As Latin1 file"
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(lambda (a s v b)
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(org-ascii-export-to-ascii a s v b '(:ascii-charset latin1))))
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(?U "As UTF-8 buffer"
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(lambda (a s v b)
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(org-ascii-export-as-ascii a s v b '(:ascii-charset utf-8))))
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(?u "As UTF-8 file"
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(lambda (a s v b)
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(org-ascii-export-to-ascii a s v b '(:ascii-charset utf-8))))))
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:filters-alist '((:filter-headline . org-ascii-filter-headline-blank-lines)
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(:filter-parse-tree org-ascii-filter-paragraph-spacing
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org-ascii-filter-comment-spacing)
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(:filter-section . org-ascii-filter-headline-blank-lines))
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:options-alist
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'((:subtitle "SUBTITLE" nil nil parse)
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(:ascii-bullets nil nil org-ascii-bullets)
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(:ascii-caption-above nil nil org-ascii-caption-above)
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(:ascii-charset nil nil org-ascii-charset)
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(:ascii-global-margin nil nil org-ascii-global-margin)
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(:ascii-format-drawer-function nil nil org-ascii-format-drawer-function)
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(:ascii-format-inlinetask-function
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nil nil org-ascii-format-inlinetask-function)
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(:ascii-headline-spacing nil nil org-ascii-headline-spacing)
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(:ascii-indented-line-width nil nil org-ascii-indented-line-width)
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(:ascii-inlinetask-width nil nil org-ascii-inlinetask-width)
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(:ascii-inner-margin nil nil org-ascii-inner-margin)
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(:ascii-links-to-notes nil nil org-ascii-links-to-notes)
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(:ascii-list-margin nil nil org-ascii-list-margin)
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(:ascii-paragraph-spacing nil nil org-ascii-paragraph-spacing)
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(:ascii-quote-margin nil nil org-ascii-quote-margin)
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(:ascii-table-keep-all-vertical-lines
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nil nil org-ascii-table-keep-all-vertical-lines)
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(:ascii-table-use-ascii-art nil nil org-ascii-table-use-ascii-art)
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(:ascii-table-widen-columns nil nil org-ascii-table-widen-columns)
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(:ascii-text-width nil nil org-ascii-text-width)
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(:ascii-underline nil nil org-ascii-underline)
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(:ascii-verbatim-format nil nil org-ascii-verbatim-format)))
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;;; User Configurable Variables
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(defgroup org-export-ascii nil
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"Options for exporting Org mode files to ASCII."
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:tag "Org Export ASCII"
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:group 'org-export)
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(defcustom org-ascii-text-width 72
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"Maximum width of exported text.
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This number includes margin size, as set in
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`org-ascii-global-margin'."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'integer)
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(defcustom org-ascii-global-margin 0
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"Width of the left margin, in number of characters."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'integer)
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(defcustom org-ascii-inner-margin 2
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"Width of the inner margin, in number of characters.
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Inner margin is applied between each headline."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'integer)
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(defcustom org-ascii-quote-margin 6
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"Width of margin used for quoting text, in characters.
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This margin is applied on both sides of the text. It is also
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applied on the left side of contents in descriptive lists."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'integer)
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(defcustom org-ascii-list-margin 0
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"Width of margin used for plain lists, in characters.
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This margin applies to top level list only, not to its
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sub-lists."
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:group 'org-export-ascii
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:version "26.1"
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:package-version '(Org . "8.3")
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:type 'integer)
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(defcustom org-ascii-inlinetask-width 30
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"Width of inline tasks, in number of characters.
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This number ignores any margin."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'integer)
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(defcustom org-ascii-headline-spacing '(1 . 2)
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"Number of blank lines inserted around headlines.
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This variable can be set to a cons cell. In that case, its car
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represents the number of blank lines present before headline
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contents whereas its cdr reflects the number of blank lines after
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contents.
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A nil value replicates the number of blank lines found in the
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original Org buffer at the same place."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(choice
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(const :tag "Replicate original spacing" nil)
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(cons :tag "Set a uniform spacing"
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(integer :tag "Number of blank lines before contents")
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(integer :tag "Number of blank lines after contents"))))
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(defcustom org-ascii-indented-line-width 'auto
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"Additional indentation width for the first line in a paragraph.
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If the value is an integer, indent the first line of each
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paragraph by this width, unless it is located at the beginning of
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a section, in which case indentation is removed from that line.
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If it is the symbol `auto' preserve indentation from original
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document."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(choice
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(integer :tag "Number of white spaces characters")
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(const :tag "Preserve original width" auto)))
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(defcustom org-ascii-paragraph-spacing 'auto
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"Number of white lines between paragraphs.
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If the value is an integer, add this number of blank lines
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between contiguous paragraphs. If is it the symbol `auto', keep
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the same number of blank lines as in the original document."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(choice
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(integer :tag "Number of blank lines")
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(const :tag "Preserve original spacing" auto)))
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(defcustom org-ascii-charset 'ascii
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"The charset allowed to represent various elements and objects.
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Possible values are:
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`ascii' Only use plain ASCII characters
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`latin1' Include Latin-1 characters
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`utf-8' Use all UTF-8 characters"
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(choice
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(const :tag "ASCII" ascii)
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(const :tag "Latin-1" latin1)
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(const :tag "UTF-8" utf-8)))
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(defcustom org-ascii-underline '((ascii ?= ?~ ?-)
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(latin1 ?= ?~ ?-)
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(utf-8 ?═ ?─ ?╌ ?┄ ?┈))
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"Characters for underlining headings in ASCII export.
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Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
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and whose value is a list of characters.
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For each supported charset, this variable associates a sequence
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of underline characters. In a sequence, the characters will be
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used in order for headlines level 1, 2, ... If no character is
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available for a given level, the headline won't be underlined."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(list
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(cons :tag "Underline characters sequence"
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(const :tag "ASCII charset" ascii)
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(repeat character))
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(cons :tag "Underline characters sequence"
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(const :tag "Latin-1 charset" latin1)
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(repeat character))
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(cons :tag "Underline characters sequence"
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(const :tag "UTF-8 charset" utf-8)
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(repeat character))))
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(defcustom org-ascii-bullets '((ascii ?* ?+ ?-)
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(latin1 ?§ ?¶)
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(utf-8 ?◊))
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"Bullet characters for headlines converted to lists in ASCII export.
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Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
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and whose value is a list of characters.
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The first character is used for the first level considered as low
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level, and so on. If there are more levels than characters given
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here, the list will be repeated.
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Note that this variable doesn't affect plain lists
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representation."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type '(list
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "ASCII charset" ascii)
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(repeat character))
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "Latin-1 charset" latin1)
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(repeat character))
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(cons :tag "Bullet characters for low level headlines"
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(const :tag "UTF-8 charset" utf-8)
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(repeat character))))
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(defcustom org-ascii-links-to-notes t
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"Non-nil means convert links to notes before the next headline.
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When nil, the link will be exported in place. If the line
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becomes long in this way, it will be wrapped."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'boolean)
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(defcustom org-ascii-table-keep-all-vertical-lines nil
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"Non-nil means keep all vertical lines in ASCII tables.
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When nil, vertical lines will be removed except for those needed
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for column grouping."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'boolean)
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(defcustom org-ascii-table-widen-columns t
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"Non-nil means widen narrowed columns for export.
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When nil, narrowed columns will look in ASCII export just like in
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Org mode, i.e. with \"=>\" as ellipsis."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'boolean)
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(defcustom org-ascii-table-use-ascii-art nil
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"Non-nil means \"table.el\" tables are turned into ASCII art.
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It only makes sense when export charset is `utf-8'. It is nil by
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default since it requires \"ascii-art-to-unicode.el\" package,
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available through, e.g., GNU ELPA."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'boolean)
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(defcustom org-ascii-caption-above nil
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"When non-nil, place caption string before the element.
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Otherwise, place it right after it."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'boolean)
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(defcustom org-ascii-verbatim-format "`%s'"
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"Format string used for verbatim text and inline code."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'string)
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(defcustom org-ascii-format-drawer-function
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(lambda (_name contents _width) contents)
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"Function called to format a drawer in ASCII.
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The function must accept three parameters:
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NAME the drawer name, like \"LOGBOOK\"
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CONTENTS the contents of the drawer.
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WIDTH the text width within the drawer.
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The function should return either the string to be exported or
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nil to ignore the drawer.
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The default value simply returns the value of CONTENTS."
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:group 'org-export-ascii
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:version "24.4"
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:package-version '(Org . "8.0")
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:type 'function)
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(defcustom org-ascii-format-inlinetask-function
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'org-ascii-format-inlinetask-default
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"Function called to format an inlinetask in ASCII.
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The function must accept nine parameters:
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TODO the todo keyword, as a string
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TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
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PRIORITY the inlinetask priority, as a string
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NAME the inlinetask name, as a string.
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TAGS the inlinetask tags, as a list of strings.
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CONTENTS the contents of the inlinetask, as a string.
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WIDTH the width of the inlinetask, as a number.
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INLINETASK the inlinetask itself.
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INFO the info channel.
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The function should return either the string to be exported or
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nil to ignore the inline task."
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:group 'org-export-ascii
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:version "26.1"
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:package-version '(Org . "8.3")
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:type 'function)
|
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;;; Internal Functions
|
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;; Internal functions fall into three categories.
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;; The first one is about text formatting. The core functions are
|
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;; `org-ascii--current-text-width' and
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;; `org-ascii--current-justification', which determine, respectively,
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;; the current text width allowed to a given element and its expected
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;; justification. Once this information is known,
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;; `org-ascii--fill-string', `org-ascii--justify-lines',
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;; `org-ascii--justify-element' `org-ascii--box-string' and
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;; `org-ascii--indent-string' can operate on a given output string.
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;; In particular, justification happens at the regular (i.e.,
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;; non-greater) element level, which means that when the exporting
|
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;; process reaches a container (e.g., a center block) content are
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;; already justified.
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;; The second category contains functions handling elements listings,
|
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;; triggered by "#+TOC:" keyword. As such, `org-ascii--build-toc'
|
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;; returns a complete table of contents, `org-ascii--list-listings'
|
||
;; returns a list of referenceable src-block elements, and
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;; `org-ascii--list-tables' does the same for table elements.
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;; The third category includes general helper functions.
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;; `org-ascii--build-title' creates the title for a given headline
|
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;; or inlinetask element. `org-ascii--build-caption' returns the
|
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;; caption string associated to a table or a src-block.
|
||
;; `org-ascii--describe-links' creates notes about links for
|
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;; insertion at the end of a section. It uses
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;; `org-ascii--unique-links' to get the list of links to describe.
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;; Eventually, `org-ascii--translate' translates a string according
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;; to language and charset specification.
|
||
|
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|
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(defun org-ascii--fill-string (s text-width info &optional justify)
|
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"Fill a string with specified text-width and return it.
|
||
|
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S is the string being filled. TEXT-WIDTH is an integer
|
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specifying maximum length of a line. INFO is the plist used as
|
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a communication channel.
|
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|
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Optional argument JUSTIFY can specify any type of justification
|
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among `left', `center', `right' or `full'. A nil value is
|
||
equivalent to `left'. For a justification that doesn't also fill
|
||
string, see `org-ascii--justify-lines' and
|
||
`org-ascii--justify-block'.
|
||
|
||
Return nil if S isn't a string."
|
||
(when (stringp s)
|
||
(let ((double-space-p sentence-end-double-space))
|
||
(with-temp-buffer
|
||
(let ((fill-column text-width)
|
||
(use-hard-newlines t)
|
||
(sentence-end-double-space double-space-p))
|
||
(insert (if (plist-get info :preserve-breaks)
|
||
(replace-regexp-in-string "\n" hard-newline s)
|
||
s))
|
||
(fill-region (point-min) (point-max) justify))
|
||
(buffer-string)))))
|
||
|
||
(defun org-ascii--justify-lines (s text-width how)
|
||
"Justify all lines in string S.
|
||
TEXT-WIDTH is an integer specifying maximum length of a line.
|
||
HOW determines the type of justification: it can be `left',
|
||
`right', `full' or `center'."
|
||
(with-temp-buffer
|
||
(insert s)
|
||
(goto-char (point-min))
|
||
(let ((fill-column text-width)
|
||
;; Disable `adaptive-fill-mode' so it doesn't prevent
|
||
;; filling lines matching `adaptive-fill-regexp'.
|
||
(adaptive-fill-mode nil))
|
||
(while (< (point) (point-max))
|
||
(justify-current-line how)
|
||
(forward-line)))
|
||
(buffer-string)))
|
||
|
||
(defun org-ascii--justify-element (contents element info)
|
||
"Justify CONTENTS of ELEMENT.
|
||
INFO is a plist used as a communication channel. Justification
|
||
is done according to the type of element. More accurately,
|
||
paragraphs are filled and other elements are justified as blocks,
|
||
that is according to the widest non blank line in CONTENTS."
|
||
(if (not (org-string-nw-p contents)) contents
|
||
(let ((text-width (org-ascii--current-text-width element info))
|
||
(how (org-ascii--current-justification element)))
|
||
(cond
|
||
((eq (org-element-type element) 'paragraph)
|
||
;; Paragraphs are treated specially as they need to be filled.
|
||
(org-ascii--fill-string contents text-width info how))
|
||
((eq how 'left) contents)
|
||
(t (with-temp-buffer
|
||
(insert contents)
|
||
(goto-char (point-min))
|
||
(catch 'exit
|
||
(let ((max-width 0))
|
||
;; Compute maximum width. Bail out if it is greater
|
||
;; than page width, since no justification is
|
||
;; possible.
|
||
(save-excursion
|
||
(while (not (eobp))
|
||
(unless (looking-at-p "[ \t]*$")
|
||
(end-of-line)
|
||
(let ((column (current-column)))
|
||
(cond
|
||
((>= column text-width) (throw 'exit contents))
|
||
((> column max-width) (setq max-width column)))))
|
||
(forward-line)))
|
||
;; Justify every line according to TEXT-WIDTH and
|
||
;; MAX-WIDTH.
|
||
(let ((offset (/ (- text-width max-width)
|
||
(if (eq how 'right) 1 2))))
|
||
(if (zerop offset) (throw 'exit contents)
|
||
(while (not (eobp))
|
||
(unless (looking-at-p "[ \t]*$")
|
||
(indent-to-column offset))
|
||
(forward-line)))))
|
||
(buffer-string))))))))
|
||
|
||
(defun org-ascii--indent-string (s width)
|
||
"Indent string S by WIDTH white spaces.
|
||
Empty lines are not indented."
|
||
(when (stringp s)
|
||
(replace-regexp-in-string
|
||
"\\(^\\)[ \t]*\\S-" (make-string width ?\s) s nil nil 1)))
|
||
|
||
(defun org-ascii--box-string (s info)
|
||
"Return string S with a partial box to its left.
|
||
INFO is a plist used as a communication channel."
|
||
(let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(format (if utf8p "┌────\n%s\n└────" ",----\n%s\n`----")
|
||
(replace-regexp-in-string
|
||
"^" (if utf8p "│ " "| ")
|
||
;; Remove last newline character.
|
||
(replace-regexp-in-string "\n[ \t]*\\'" "" s)))))
|
||
|
||
(defun org-ascii--current-text-width (element info)
|
||
"Return maximum text width for ELEMENT's contents.
|
||
INFO is a plist used as a communication channel."
|
||
(pcase (org-element-type element)
|
||
;; Elements with an absolute width: `headline' and `inlinetask'.
|
||
(`inlinetask (plist-get info :ascii-inlinetask-width))
|
||
(`headline
|
||
(- (plist-get info :ascii-text-width)
|
||
(let ((low-level-rank (org-export-low-level-p element info)))
|
||
(if low-level-rank (* low-level-rank 2)
|
||
(plist-get info :ascii-global-margin)))))
|
||
;; Elements with a relative width: store maximum text width in
|
||
;; TOTAL-WIDTH.
|
||
(_
|
||
(let* ((genealogy (org-element-lineage element nil t))
|
||
;; Total width is determined by the presence, or not, of an
|
||
;; inline task among ELEMENT parents.
|
||
(total-width
|
||
(if (cl-some (lambda (parent)
|
||
(eq (org-element-type parent) 'inlinetask))
|
||
genealogy)
|
||
(plist-get info :ascii-inlinetask-width)
|
||
;; No inlinetask: Remove global margin from text width.
|
||
(- (plist-get info :ascii-text-width)
|
||
(plist-get info :ascii-global-margin)
|
||
(let ((parent (org-export-get-parent-headline element)))
|
||
;; Inner margin doesn't apply to text before first
|
||
;; headline.
|
||
(if (not parent) 0
|
||
(let ((low-level-rank
|
||
(org-export-low-level-p parent info)))
|
||
;; Inner margin doesn't apply to contents of
|
||
;; low level headlines, since they've got their
|
||
;; own indentation mechanism.
|
||
(if low-level-rank (* low-level-rank 2)
|
||
(plist-get info :ascii-inner-margin)))))))))
|
||
(- total-width
|
||
;; Each `quote-block' and `verse-block' above narrows text
|
||
;; width by twice the standard margin size.
|
||
(+ (* (cl-count-if (lambda (parent)
|
||
(memq (org-element-type parent)
|
||
'(quote-block verse-block)))
|
||
genealogy)
|
||
2
|
||
(plist-get info :ascii-quote-margin))
|
||
;; Apply list margin once per "top-level" plain-list
|
||
;; containing current line
|
||
(* (cl-count-if
|
||
(lambda (e)
|
||
(and (eq (org-element-type e) 'plain-list)
|
||
(not (eq (org-element-type (org-export-get-parent e))
|
||
'item))))
|
||
genealogy)
|
||
(plist-get info :ascii-list-margin))
|
||
;; Compute indentation offset due to current list. It is
|
||
;; `org-ascii-quote-margin' per descriptive item in the
|
||
;; genealogy, bullet's length otherwise.
|
||
(let ((indentation 0))
|
||
(dolist (e genealogy)
|
||
(cond
|
||
((not (eq 'item (org-element-type e))))
|
||
((eq (org-element-property :type (org-export-get-parent e))
|
||
'descriptive)
|
||
(cl-incf indentation org-ascii-quote-margin))
|
||
(t
|
||
(cl-incf indentation
|
||
(+ (string-width
|
||
(or (org-ascii--checkbox e info) ""))
|
||
(string-width
|
||
(org-element-property :bullet e)))))))
|
||
indentation)))))))
|
||
|
||
(defun org-ascii--current-justification (element)
|
||
"Return expected justification for ELEMENT's contents.
|
||
Return value is a symbol among `left', `center', `right' and
|
||
`full'."
|
||
(let (justification)
|
||
(while (and (not justification)
|
||
(setq element (org-element-property :parent element)))
|
||
(pcase (org-element-type element)
|
||
(`center-block (setq justification 'center))
|
||
(`special-block
|
||
(let ((name (org-element-property :type element)))
|
||
(cond ((string= name "JUSTIFYRIGHT") (setq justification 'right))
|
||
((string= name "JUSTIFYLEFT") (setq justification 'left)))))))
|
||
(or justification 'left)))
|
||
|
||
(defun org-ascii--build-title
|
||
(element info text-width &optional underline notags toc)
|
||
"Format ELEMENT title and return it.
|
||
|
||
ELEMENT is either an `headline' or `inlinetask' element. INFO is
|
||
a plist used as a communication channel. TEXT-WIDTH is an
|
||
integer representing the maximum length of a line.
|
||
|
||
When optional argument UNDERLINE is non-nil, underline title,
|
||
without the tags, according to `org-ascii-underline'
|
||
specifications.
|
||
|
||
If optional argument NOTAGS is non-nil, no tags will be added to
|
||
the title.
|
||
|
||
When optional argument TOC is non-nil, use optional title if
|
||
possible. It doesn't apply to `inlinetask' elements."
|
||
(let* ((headlinep (eq (org-element-type element) 'headline))
|
||
(numbers
|
||
;; Numbering is specific to headlines.
|
||
(and headlinep
|
||
(org-export-numbered-headline-p element info)
|
||
(let ((numbering (org-export-get-headline-number element info)))
|
||
(if toc (format "%d. " (org-last numbering))
|
||
(concat (mapconcat #'number-to-string numbering ".")
|
||
" ")))))
|
||
(text
|
||
(org-trim
|
||
(org-export-data
|
||
(if (and toc headlinep) (org-export-get-alt-title element info)
|
||
(org-element-property :title element))
|
||
info)))
|
||
(todo
|
||
(and (plist-get info :with-todo-keywords)
|
||
(let ((todo (org-element-property :todo-keyword element)))
|
||
(and todo (concat (org-export-data todo info) " ")))))
|
||
(tags (and (not notags)
|
||
(plist-get info :with-tags)
|
||
(let ((tag-list (org-export-get-tags element info)))
|
||
(and tag-list
|
||
(org-make-tag-string tag-list)))))
|
||
(priority
|
||
(and (plist-get info :with-priority)
|
||
(let ((char (org-element-property :priority element)))
|
||
(and char (format "(#%c) " char)))))
|
||
(first-part (concat numbers todo priority text)))
|
||
(concat
|
||
first-part
|
||
;; Align tags, if any.
|
||
(when tags
|
||
(format
|
||
(format " %%%ds"
|
||
(max (- text-width (1+ (string-width first-part)))
|
||
(string-width tags)))
|
||
tags))
|
||
;; Maybe underline text, if ELEMENT type is `headline' and an
|
||
;; underline character has been defined.
|
||
(when (and underline headlinep)
|
||
(let ((under-char
|
||
(nth (1- (org-export-get-relative-level element info))
|
||
(cdr (assq (plist-get info :ascii-charset)
|
||
(plist-get info :ascii-underline))))))
|
||
(and under-char
|
||
(concat "\n"
|
||
(make-string (/ (string-width first-part)
|
||
(char-width under-char))
|
||
under-char))))))))
|
||
|
||
(defun org-ascii--has-caption-p (element _info)
|
||
"Non-nil when ELEMENT has a caption affiliated keyword.
|
||
INFO is a plist used as a communication channel. This function
|
||
is meant to be used as a predicate for `org-export-get-ordinal'."
|
||
(org-element-property :caption element))
|
||
|
||
(defun org-ascii--build-caption (element info)
|
||
"Return caption string for ELEMENT, if applicable.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
The caption string contains the sequence number of ELEMENT along
|
||
with its real caption. Return nil when ELEMENT has no affiliated
|
||
caption keyword."
|
||
(let ((caption (org-export-get-caption element)))
|
||
(when caption
|
||
;; Get sequence number of current src-block among every
|
||
;; src-block with a caption.
|
||
(let ((reference
|
||
(org-export-get-ordinal
|
||
element info nil 'org-ascii--has-caption-p))
|
||
(title-fmt (org-ascii--translate
|
||
(pcase (org-element-type element)
|
||
(`table "Table %d:")
|
||
(`src-block "Listing %d:"))
|
||
info)))
|
||
(org-ascii--fill-string
|
||
(concat (format title-fmt reference)
|
||
" "
|
||
(org-export-data caption info))
|
||
(org-ascii--current-text-width element info) info)))))
|
||
|
||
(defun org-ascii--build-toc (info &optional n keyword scope)
|
||
"Return a table of contents.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
Optional argument N, when non-nil, is an integer specifying the
|
||
depth of the table.
|
||
|
||
Optional argument KEYWORD specifies the TOC keyword, if any, from
|
||
which the table of contents generation has been initiated.
|
||
|
||
When optional argument SCOPE is non-nil, build a table of
|
||
contents according to the specified scope."
|
||
(concat
|
||
(unless scope
|
||
(let ((title (org-ascii--translate "Table of Contents" info)))
|
||
(concat title "\n"
|
||
(make-string
|
||
(string-width title)
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n")))
|
||
(let ((text-width
|
||
(if keyword (org-ascii--current-text-width keyword info)
|
||
(- (plist-get info :ascii-text-width)
|
||
(plist-get info :ascii-global-margin)))))
|
||
(mapconcat
|
||
(lambda (headline)
|
||
(let* ((level (org-export-get-relative-level headline info))
|
||
(indent (* (1- level) 3)))
|
||
(concat
|
||
(unless (zerop indent) (concat (make-string (1- indent) ?.) " "))
|
||
(org-ascii--build-title
|
||
headline info (- text-width indent) nil
|
||
(or (not (plist-get info :with-tags))
|
||
(eq (plist-get info :with-tags) 'not-in-toc))
|
||
'toc))))
|
||
(org-export-collect-headlines info n scope) "\n"))))
|
||
|
||
(defun org-ascii--list-listings (keyword info)
|
||
"Return a list of listings.
|
||
|
||
KEYWORD is the keyword that initiated the list of listings
|
||
generation. INFO is a plist used as a communication channel."
|
||
(let ((title (org-ascii--translate "List of Listings" info)))
|
||
(concat
|
||
title "\n"
|
||
(make-string (string-width title)
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n"
|
||
(let ((text-width
|
||
(if keyword (org-ascii--current-text-width keyword info)
|
||
(- (plist-get info :ascii-text-width)
|
||
(plist-get info :ascii-global-margin))))
|
||
;; Use a counter instead of retrieving ordinal of each
|
||
;; src-block.
|
||
(count 0))
|
||
(mapconcat
|
||
(lambda (src-block)
|
||
;; Store initial text so its length can be computed. This is
|
||
;; used to properly align caption right to it in case of
|
||
;; filling (like contents of a description list item).
|
||
(let* ((initial-text
|
||
(format (org-ascii--translate "Listing %d:" info)
|
||
(cl-incf count)))
|
||
(initial-width (string-width initial-text)))
|
||
(concat
|
||
initial-text " "
|
||
(org-trim
|
||
(org-ascii--indent-string
|
||
(org-ascii--fill-string
|
||
;; Use short name in priority, if available.
|
||
(let ((caption (or (org-export-get-caption src-block t)
|
||
(org-export-get-caption src-block))))
|
||
(org-export-data caption info))
|
||
(- text-width initial-width) info)
|
||
initial-width)))))
|
||
(org-export-collect-listings info) "\n")))))
|
||
|
||
(defun org-ascii--list-tables (keyword info)
|
||
"Return a list of tables.
|
||
|
||
KEYWORD is the keyword that initiated the list of tables
|
||
generation. INFO is a plist used as a communication channel."
|
||
(let ((title (org-ascii--translate "List of Tables" info)))
|
||
(concat
|
||
title "\n"
|
||
(make-string (string-width title)
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
|
||
"\n\n"
|
||
(let ((text-width
|
||
(if keyword (org-ascii--current-text-width keyword info)
|
||
(- (plist-get info :ascii-text-width)
|
||
(plist-get info :ascii-global-margin))))
|
||
;; Use a counter instead of retrieving ordinal of each
|
||
;; src-block.
|
||
(count 0))
|
||
(mapconcat
|
||
(lambda (table)
|
||
;; Store initial text so its length can be computed. This is
|
||
;; used to properly align caption right to it in case of
|
||
;; filling (like contents of a description list item).
|
||
(let* ((initial-text
|
||
(format (org-ascii--translate "Table %d:" info)
|
||
(cl-incf count)))
|
||
(initial-width (string-width initial-text)))
|
||
(concat
|
||
initial-text " "
|
||
(org-trim
|
||
(org-ascii--indent-string
|
||
(org-ascii--fill-string
|
||
;; Use short name in priority, if available.
|
||
(let ((caption (or (org-export-get-caption table t)
|
||
(org-export-get-caption table))))
|
||
(org-export-data caption info))
|
||
(- text-width initial-width) info)
|
||
initial-width)))))
|
||
(org-export-collect-tables info) "\n")))))
|
||
|
||
(defun org-ascii--unique-links (element info)
|
||
"Return a list of unique link references in ELEMENT.
|
||
ELEMENT is either a headline element or a section element. INFO
|
||
is a plist used as a communication channel."
|
||
(let* (seen
|
||
(unique-link-p
|
||
;; Return LINK if it wasn't referenced so far, or nil.
|
||
;; Update SEEN links along the way.
|
||
(lambda (link)
|
||
(let ((footprint
|
||
;; Normalize description in footprints.
|
||
(cons (org-element-property :raw-link link)
|
||
(let ((contents (org-element-contents link)))
|
||
(and contents
|
||
(replace-regexp-in-string
|
||
"[ \r\t\n]+" " "
|
||
(org-trim
|
||
(org-element-interpret-data contents))))))))
|
||
;; Ignore LINK if it hasn't been translated already. It
|
||
;; can happen if it is located in an affiliated keyword
|
||
;; that was ignored.
|
||
(when (and (org-string-nw-p
|
||
(gethash link (plist-get info :exported-data)))
|
||
(not (member footprint seen)))
|
||
(push footprint seen) link)))))
|
||
(org-element-map (if (eq (org-element-type element) 'section)
|
||
element
|
||
;; In a headline, only retrieve links in title
|
||
;; and relative section, not in children.
|
||
(list (org-element-property :title element)
|
||
(car (org-element-contents element))))
|
||
'link unique-link-p info nil 'headline t)))
|
||
|
||
(defun org-ascii--describe-datum (datum info)
|
||
"Describe DATUM object or element.
|
||
If DATUM is a string, consider it to be a file name, per
|
||
`org-export-resolve-id-link'. INFO is the communication channel,
|
||
as a plist."
|
||
(pcase (org-element-type datum)
|
||
(`plain-text (format "See file %s" datum)) ;External file
|
||
(`headline
|
||
(format (org-ascii--translate "See section %s" info)
|
||
(if (org-export-numbered-headline-p datum info)
|
||
(mapconcat #'number-to-string
|
||
(org-export-get-headline-number datum info)
|
||
".")
|
||
(org-export-data (org-element-property :title datum) info))))
|
||
(_
|
||
(let ((number (org-export-get-ordinal
|
||
datum info nil #'org-ascii--has-caption-p))
|
||
;; If destination is a target, make sure we can name the
|
||
;; container it refers to.
|
||
(enumerable
|
||
(org-element-lineage datum
|
||
'(headline paragraph src-block table) t)))
|
||
(pcase (org-element-type enumerable)
|
||
(`headline
|
||
(format (org-ascii--translate "See section %s" info)
|
||
(if (org-export-numbered-headline-p enumerable info)
|
||
(mapconcat #'number-to-string number ".")
|
||
(org-export-data
|
||
(org-element-property :title enumerable) info))))
|
||
((guard (not number))
|
||
(org-ascii--translate "Unknown reference" info))
|
||
(`paragraph
|
||
(format (org-ascii--translate "See figure %s" info) number))
|
||
(`src-block
|
||
(format (org-ascii--translate "See listing %s" info) number))
|
||
(`table
|
||
(format (org-ascii--translate "See table %s" info) number))
|
||
(_ (org-ascii--translate "Unknown reference" info)))))))
|
||
|
||
(defun org-ascii--describe-links (links width info)
|
||
"Return a string describing a list of links.
|
||
LINKS is a list of link type objects, as returned by
|
||
`org-ascii--unique-links'. WIDTH is the text width allowed for
|
||
the output string. INFO is a plist used as a communication
|
||
channel."
|
||
(mapconcat
|
||
(lambda (link)
|
||
(let* ((type (org-element-property :type link))
|
||
(description (org-element-contents link))
|
||
(anchor (org-export-data
|
||
(or description (org-element-property :raw-link link))
|
||
info)))
|
||
(cond
|
||
((member type '("coderef" "radio")) nil)
|
||
((member type '("custom-id" "fuzzy" "id"))
|
||
;; Only links with a description need an entry. Other are
|
||
;; already handled in `org-ascii-link'.
|
||
(when description
|
||
(let ((dest (if (equal type "fuzzy")
|
||
(org-export-resolve-fuzzy-link link info)
|
||
(org-export-resolve-id-link link info))))
|
||
(concat
|
||
(org-ascii--fill-string
|
||
(format "[%s] %s" anchor (org-ascii--describe-datum dest info))
|
||
width info)
|
||
"\n\n"))))
|
||
;; Do not add a link that cannot be resolved and doesn't have
|
||
;; any description: destination is already visible in the
|
||
;; paragraph.
|
||
((not (org-element-contents link)) nil)
|
||
;; Do not add a link already handled by custom export
|
||
;; functions.
|
||
((org-export-custom-protocol-maybe link anchor 'ascii info) nil)
|
||
(t
|
||
(concat
|
||
(org-ascii--fill-string
|
||
(format "[%s] <%s>" anchor (org-element-property :raw-link link))
|
||
width info)
|
||
"\n\n")))))
|
||
links ""))
|
||
|
||
(defun org-ascii--checkbox (item info)
|
||
"Return checkbox string for ITEM or nil.
|
||
INFO is a plist used as a communication channel."
|
||
(let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(pcase (org-element-property :checkbox item)
|
||
(`on (if utf8p "☑ " "[X] "))
|
||
(`off (if utf8p "☐ " "[ ] "))
|
||
(`trans (if utf8p "☒ " "[-] ")))))
|
||
|
||
|
||
|
||
;;; Template
|
||
|
||
(defun org-ascii-template--document-title (info)
|
||
"Return document title, as a string.
|
||
INFO is a plist used as a communication channel."
|
||
(let* ((text-width (plist-get info :ascii-text-width))
|
||
;; Links in the title will not be resolved later, so we make
|
||
;; sure their path is located right after them.
|
||
(info (org-combine-plists info '(:ascii-links-to-notes nil)))
|
||
(with-title (plist-get info :with-title))
|
||
(title (org-export-data
|
||
(when with-title (plist-get info :title)) info))
|
||
(subtitle (org-export-data
|
||
(when with-title (plist-get info :subtitle)) info))
|
||
(author (and (plist-get info :with-author)
|
||
(let ((auth (plist-get info :author)))
|
||
(and auth (org-export-data auth info)))))
|
||
(email (and (plist-get info :with-email)
|
||
(org-export-data (plist-get info :email) info)))
|
||
(date (and (plist-get info :with-date)
|
||
(org-export-data (org-export-get-date info) info))))
|
||
;; There are two types of title blocks depending on the presence
|
||
;; of a title to display.
|
||
(if (string= title "")
|
||
;; Title block without a title. DATE is positioned at the top
|
||
;; right of the document, AUTHOR to the top left and EMAIL
|
||
;; just below.
|
||
(cond
|
||
((and (org-string-nw-p date) (org-string-nw-p author))
|
||
(concat
|
||
author
|
||
(make-string (- text-width (string-width date) (string-width author))
|
||
?\s)
|
||
date
|
||
(when (org-string-nw-p email) (concat "\n" email))
|
||
"\n\n\n"))
|
||
((and (org-string-nw-p date) (org-string-nw-p email))
|
||
(concat
|
||
email
|
||
(make-string (- text-width (string-width date) (string-width email))
|
||
?\s)
|
||
date "\n\n\n"))
|
||
((org-string-nw-p date)
|
||
(concat
|
||
(org-ascii--justify-lines date text-width 'right)
|
||
"\n\n\n"))
|
||
((and (org-string-nw-p author) (org-string-nw-p email))
|
||
(concat author "\n" email "\n\n\n"))
|
||
((org-string-nw-p author) (concat author "\n\n\n"))
|
||
((org-string-nw-p email) (concat email "\n\n\n")))
|
||
;; Title block with a title. Document's TITLE, along with the
|
||
;; AUTHOR and its EMAIL are both overlined and an underlined,
|
||
;; centered. Date is just below, also centered.
|
||
(let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
;; Format TITLE. It may be filled if it is too wide,
|
||
;; that is wider than the two thirds of the total width.
|
||
(title-len (min (apply #'max
|
||
(mapcar #'string-width
|
||
(org-split-string
|
||
(concat title "\n" subtitle) "\n")))
|
||
(/ (* 2 text-width) 3)))
|
||
(formatted-title (org-ascii--fill-string title title-len info))
|
||
(formatted-subtitle (when (org-string-nw-p subtitle)
|
||
(org-ascii--fill-string subtitle title-len info)))
|
||
(line
|
||
(make-string
|
||
(min (+ (max title-len
|
||
(string-width (or author ""))
|
||
(string-width (or email "")))
|
||
2)
|
||
text-width) (if utf8p ?━ ?_))))
|
||
(org-ascii--justify-lines
|
||
(concat line "\n"
|
||
(unless utf8p "\n")
|
||
(upcase formatted-title)
|
||
(and formatted-subtitle (concat "\n" formatted-subtitle))
|
||
(cond
|
||
((and (org-string-nw-p author) (org-string-nw-p email))
|
||
(concat "\n\n" author "\n" email))
|
||
((org-string-nw-p author) (concat "\n\n" author))
|
||
((org-string-nw-p email) (concat "\n\n" email)))
|
||
"\n" line
|
||
(when (org-string-nw-p date) (concat "\n\n\n" date))
|
||
"\n\n\n") text-width 'center)))))
|
||
|
||
(defun org-ascii-inner-template (contents info)
|
||
"Return complete document string after ASCII conversion.
|
||
CONTENTS is the transcoded contents string. INFO is a plist
|
||
holding export options."
|
||
(org-element-normalize-string
|
||
(let ((global-margin (plist-get info :ascii-global-margin)))
|
||
(org-ascii--indent-string
|
||
(concat
|
||
;; 1. Document's body.
|
||
contents
|
||
;; 2. Footnote definitions.
|
||
(let ((definitions (org-export-collect-footnote-definitions info))
|
||
;; Insert full links right inside the footnote definition
|
||
;; as they have no chance to be inserted later.
|
||
(info (org-combine-plists info '(:ascii-links-to-notes nil))))
|
||
(when definitions
|
||
(concat
|
||
"\n\n\n"
|
||
(let ((title (org-ascii--translate "Footnotes" info)))
|
||
(concat
|
||
title "\n"
|
||
(make-string
|
||
(string-width title)
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))))
|
||
"\n\n"
|
||
(let ((text-width (- (plist-get info :ascii-text-width)
|
||
global-margin)))
|
||
(mapconcat
|
||
(lambda (ref)
|
||
(let ((id (format "[%s] " (car ref))))
|
||
;; Distinguish between inline definitions and
|
||
;; full-fledged definitions.
|
||
(org-trim
|
||
(let ((def (nth 2 ref)))
|
||
(if (org-element-map def org-element-all-elements
|
||
#'identity info 'first-match)
|
||
;; Full-fledged definition: footnote ID is
|
||
;; inserted inside the first parsed
|
||
;; paragraph (FIRST), if any, to be sure
|
||
;; filling will take it into consideration.
|
||
(let ((first (car (org-element-contents def))))
|
||
(if (not (eq (org-element-type first) 'paragraph))
|
||
(concat id "\n" (org-export-data def info))
|
||
(push id (nthcdr 2 first))
|
||
(org-export-data def info)))
|
||
;; Fill paragraph once footnote ID is inserted
|
||
;; in order to have a correct length for first
|
||
;; line.
|
||
(org-ascii--fill-string
|
||
(concat id (org-export-data def info))
|
||
text-width info))))))
|
||
definitions "\n\n"))))))
|
||
global-margin))))
|
||
|
||
(defun org-ascii-template (contents info)
|
||
"Return complete document string after ASCII conversion.
|
||
CONTENTS is the transcoded contents string. INFO is a plist
|
||
holding export options."
|
||
(let ((global-margin (plist-get info :ascii-global-margin)))
|
||
(concat
|
||
;; Build title block.
|
||
(org-ascii--indent-string
|
||
(concat (org-ascii-template--document-title info)
|
||
;; 2. Table of contents.
|
||
(let ((depth (plist-get info :with-toc)))
|
||
(when depth
|
||
(concat
|
||
(org-ascii--build-toc info (and (wholenump depth) depth))
|
||
"\n\n\n"))))
|
||
global-margin)
|
||
;; Document's body.
|
||
contents
|
||
;; Creator. Justify it to the bottom right.
|
||
(and (plist-get info :with-creator)
|
||
(org-ascii--indent-string
|
||
(let ((text-width
|
||
(- (plist-get info :ascii-text-width) global-margin)))
|
||
(concat
|
||
"\n\n\n"
|
||
(org-ascii--fill-string
|
||
(plist-get info :creator) text-width info 'right)))
|
||
global-margin)))))
|
||
|
||
(defun org-ascii--translate (s info)
|
||
"Translate string S according to specified language and charset.
|
||
INFO is a plist used as a communication channel."
|
||
(let ((charset (intern (format ":%s" (plist-get info :ascii-charset)))))
|
||
(org-export-translate s charset info)))
|
||
|
||
|
||
|
||
;;; Transcode Functions
|
||
|
||
;;;; Bold
|
||
|
||
(defun org-ascii-bold (_bold contents _info)
|
||
"Transcode BOLD from Org to ASCII.
|
||
CONTENTS is the text with bold markup. INFO is a plist holding
|
||
contextual information."
|
||
(format "*%s*" contents))
|
||
|
||
|
||
;;;; Center Block
|
||
|
||
(defun org-ascii-center-block (_center-block contents _info)
|
||
"Transcode a CENTER-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
;; Center has already been taken care of at a lower level, so
|
||
;; there's nothing left to do.
|
||
contents)
|
||
|
||
|
||
;;;; Clock
|
||
|
||
(defun org-ascii-clock (clock _contents info)
|
||
"Transcode a CLOCK object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(org-ascii--justify-element
|
||
(concat org-clock-string " "
|
||
(org-timestamp-translate (org-element-property :value clock))
|
||
(let ((time (org-element-property :duration clock)))
|
||
(and time
|
||
(concat " => "
|
||
(apply 'format
|
||
"%2s:%02s"
|
||
(org-split-string time ":"))))))
|
||
clock info))
|
||
|
||
|
||
;;;; Code
|
||
|
||
(defun org-ascii-code (code _contents info)
|
||
"Return a CODE object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(format (plist-get info :ascii-verbatim-format)
|
||
(org-element-property :value code)))
|
||
|
||
|
||
;;;; Drawer
|
||
|
||
(defun org-ascii-drawer (drawer contents info)
|
||
"Transcode a DRAWER element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(let ((name (org-element-property :drawer-name drawer))
|
||
(width (org-ascii--current-text-width drawer info)))
|
||
(funcall (plist-get info :ascii-format-drawer-function)
|
||
name contents width)))
|
||
|
||
|
||
;;;; Dynamic Block
|
||
|
||
(defun org-ascii-dynamic-block (_dynamic-block contents _info)
|
||
"Transcode a DYNAMIC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
contents)
|
||
|
||
|
||
;;;; Entity
|
||
|
||
(defun org-ascii-entity (entity _contents info)
|
||
"Transcode an ENTITY object from Org to ASCII.
|
||
CONTENTS are the definition itself. INFO is a plist holding
|
||
contextual information."
|
||
(org-element-property
|
||
(intern (concat ":" (symbol-name (plist-get info :ascii-charset))))
|
||
entity))
|
||
|
||
|
||
;;;; Example Block
|
||
|
||
(defun org-ascii-example-block (example-block _contents info)
|
||
"Transcode a EXAMPLE-BLOCK element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-ascii--justify-element
|
||
(org-ascii--box-string
|
||
(org-export-format-code-default example-block info) info)
|
||
example-block info))
|
||
|
||
|
||
;;;; Export Snippet
|
||
|
||
(defun org-ascii-export-snippet (export-snippet _contents _info)
|
||
"Transcode a EXPORT-SNIPPET object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(when (eq (org-export-snippet-backend export-snippet) 'ascii)
|
||
(org-element-property :value export-snippet)))
|
||
|
||
|
||
;;;; Export Block
|
||
|
||
(defun org-ascii-export-block (export-block _contents info)
|
||
"Transcode a EXPORT-BLOCK element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(when (string= (org-element-property :type export-block) "ASCII")
|
||
(org-ascii--justify-element
|
||
(org-element-property :value export-block) export-block info)))
|
||
|
||
|
||
;;;; Fixed Width
|
||
|
||
(defun org-ascii-fixed-width (fixed-width _contents info)
|
||
"Transcode a FIXED-WIDTH element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-ascii--justify-element
|
||
(org-ascii--box-string
|
||
(org-remove-indentation
|
||
(org-element-property :value fixed-width))
|
||
info)
|
||
fixed-width info))
|
||
|
||
|
||
;;;; Footnote Definition
|
||
|
||
;; Footnote Definitions are ignored. They are compiled at the end of
|
||
;; the document, by `org-ascii-inner-template'.
|
||
|
||
|
||
;;;; Footnote Reference
|
||
|
||
(defun org-ascii-footnote-reference (footnote-reference _contents info)
|
||
"Transcode a FOOTNOTE-REFERENCE element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(format "[%s]" (org-export-get-footnote-number footnote-reference info)))
|
||
|
||
|
||
;;;; Headline
|
||
|
||
(defun org-ascii-headline (headline contents info)
|
||
"Transcode a HEADLINE element from Org to ASCII.
|
||
CONTENTS holds the contents of the headline. INFO is a plist
|
||
holding contextual information."
|
||
;; Don't export footnote section, which will be handled at the end
|
||
;; of the template.
|
||
(unless (org-element-property :footnote-section-p headline)
|
||
(let* ((low-level (org-export-low-level-p headline info))
|
||
(width (org-ascii--current-text-width headline info))
|
||
;; Export title early so that any link in it can be
|
||
;; exported and seen in `org-ascii--unique-links'.
|
||
(title (org-ascii--build-title headline info width (not low-level)))
|
||
;; Blank lines between headline and its contents.
|
||
;; `org-ascii-headline-spacing', when set, overwrites
|
||
;; original buffer's spacing.
|
||
(pre-blanks
|
||
(make-string (or (car (plist-get info :ascii-headline-spacing))
|
||
(org-element-property :pre-blank headline)
|
||
0)
|
||
?\n))
|
||
(links (and (plist-get info :ascii-links-to-notes)
|
||
(org-ascii--describe-links
|
||
(org-ascii--unique-links headline info) width info)))
|
||
;; Re-build contents, inserting section links at the right
|
||
;; place. The cost is low since build results are cached.
|
||
(body
|
||
(if (not (org-string-nw-p links)) contents
|
||
(let* ((contents (org-element-contents headline))
|
||
(section (let ((first (car contents)))
|
||
(and (eq (org-element-type first) 'section)
|
||
first))))
|
||
(concat (and section
|
||
(concat (org-element-normalize-string
|
||
(org-export-data section info))
|
||
"\n\n"))
|
||
links
|
||
(mapconcat (lambda (e) (org-export-data e info))
|
||
(if section (cdr contents) contents)
|
||
""))))))
|
||
;; Deep subtree: export it as a list item.
|
||
(if low-level
|
||
(let* ((bullets (cdr (assq (plist-get info :ascii-charset)
|
||
(plist-get info :ascii-bullets))))
|
||
(bullet
|
||
(format "%c "
|
||
(nth (mod (1- low-level) (length bullets)) bullets))))
|
||
(concat bullet title "\n" pre-blanks
|
||
;; Contents, indented by length of bullet.
|
||
(org-ascii--indent-string body (length bullet))))
|
||
;; Else: Standard headline.
|
||
(concat title "\n" pre-blanks body)))))
|
||
|
||
|
||
;;;; Horizontal Rule
|
||
|
||
(defun org-ascii-horizontal-rule (horizontal-rule _contents info)
|
||
"Transcode an HORIZONTAL-RULE object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(let ((text-width (org-ascii--current-text-width horizontal-rule info))
|
||
(spec-width
|
||
(org-export-read-attribute :attr_ascii horizontal-rule :width)))
|
||
(org-ascii--justify-lines
|
||
(make-string (if (and spec-width (string-match "^[0-9]+$" spec-width))
|
||
(string-to-number spec-width)
|
||
text-width)
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) ?― ?-))
|
||
text-width 'center)))
|
||
|
||
|
||
;;;; Inline Src Block
|
||
|
||
(defun org-ascii-inline-src-block (inline-src-block _contents info)
|
||
"Transcode an INLINE-SRC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(format (plist-get info :ascii-verbatim-format)
|
||
(org-element-property :value inline-src-block)))
|
||
|
||
|
||
;;;; Inlinetask
|
||
|
||
(defun org-ascii-format-inlinetask-default
|
||
(_todo _type _priority _name _tags contents width inlinetask info)
|
||
"Format an inline task element for ASCII export.
|
||
See `org-ascii-format-inlinetask-function' for a description
|
||
of the parameters."
|
||
(let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
(width (or width (plist-get info :ascii-inlinetask-width))))
|
||
(org-ascii--indent-string
|
||
(concat
|
||
;; Top line, with an additional blank line if not in UTF-8.
|
||
(make-string width (if utf8p ?━ ?_)) "\n"
|
||
(unless utf8p (concat (make-string width ? ) "\n"))
|
||
;; Add title. Fill it if wider than inlinetask.
|
||
(let ((title (org-ascii--build-title inlinetask info width)))
|
||
(if (<= (string-width title) width) title
|
||
(org-ascii--fill-string title width info)))
|
||
"\n"
|
||
;; If CONTENTS is not empty, insert it along with
|
||
;; a separator.
|
||
(when (org-string-nw-p contents)
|
||
(concat (make-string width (if utf8p ?─ ?-)) "\n" contents))
|
||
;; Bottom line.
|
||
(make-string width (if utf8p ?━ ?_)))
|
||
;; Flush the inlinetask to the right.
|
||
(- (plist-get info :ascii-text-width) (plist-get info :ascii-global-margin)
|
||
(if (not (org-export-get-parent-headline inlinetask)) 0
|
||
(plist-get info :ascii-inner-margin))
|
||
(org-ascii--current-text-width inlinetask info)))))
|
||
|
||
(defun org-ascii-inlinetask (inlinetask contents info)
|
||
"Transcode an INLINETASK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(let ((width (org-ascii--current-text-width inlinetask info)))
|
||
(funcall (plist-get info :ascii-format-inlinetask-function)
|
||
;; todo.
|
||
(and (plist-get info :with-todo-keywords)
|
||
(let ((todo (org-element-property
|
||
:todo-keyword inlinetask)))
|
||
(and todo (org-export-data todo info))))
|
||
;; todo-type
|
||
(org-element-property :todo-type inlinetask)
|
||
;; priority
|
||
(and (plist-get info :with-priority)
|
||
(org-element-property :priority inlinetask))
|
||
;; title
|
||
(org-export-data (org-element-property :title inlinetask) info)
|
||
;; tags
|
||
(and (plist-get info :with-tags)
|
||
(org-element-property :tags inlinetask))
|
||
;; contents and width
|
||
contents width inlinetask info)))
|
||
|
||
|
||
;;;; Italic
|
||
|
||
(defun org-ascii-italic (_italic contents _info)
|
||
"Transcode italic from Org to ASCII.
|
||
CONTENTS is the text with italic markup. INFO is a plist holding
|
||
contextual information."
|
||
(format "/%s/" contents))
|
||
|
||
|
||
;;;; Item
|
||
|
||
(defun org-ascii-item (item contents info)
|
||
"Transcode an ITEM element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
(checkbox (org-ascii--checkbox item info))
|
||
(list-type (org-element-property :type (org-export-get-parent item)))
|
||
(bullet
|
||
;; First parent of ITEM is always the plain-list. Get
|
||
;; `:type' property from it.
|
||
(pcase list-type
|
||
(`descriptive
|
||
(concat checkbox
|
||
(org-export-data (org-element-property :tag item)
|
||
info)))
|
||
(`ordered
|
||
;; Return correct number for ITEM, paying attention to
|
||
;; counters.
|
||
(let* ((struct (org-element-property :structure item))
|
||
(bul (org-list-bullet-string
|
||
(org-element-property :bullet item)))
|
||
(num (number-to-string
|
||
(car (last (org-list-get-item-number
|
||
(org-element-property :begin item)
|
||
struct
|
||
(org-list-prevs-alist struct)
|
||
(org-list-parents-alist struct)))))))
|
||
(replace-regexp-in-string "[0-9]+" num bul)))
|
||
(_ (let ((bul (org-list-bullet-string
|
||
(org-element-property :bullet item))))
|
||
;; Change bullets into more visible form if UTF-8 is active.
|
||
(if (not utf8p) bul
|
||
(replace-regexp-in-string
|
||
"-" "•"
|
||
(replace-regexp-in-string
|
||
"\\+" "⁃"
|
||
(replace-regexp-in-string "\\*" "‣" bul))))))))
|
||
(indentation (if (eq list-type 'descriptive) org-ascii-quote-margin
|
||
(string-width bullet))))
|
||
(concat
|
||
bullet
|
||
checkbox
|
||
;; Contents: Pay attention to indentation. Note: check-boxes are
|
||
;; already taken care of at the paragraph level so they don't
|
||
;; interfere with indentation.
|
||
(let ((contents (org-ascii--indent-string contents indentation)))
|
||
;; Determine if contents should follow the bullet or start
|
||
;; a new line. Do the former when the first contributing
|
||
;; element to contents is a paragraph. In descriptive lists
|
||
;; however, contents always start a new line.
|
||
(if (and (not (eq list-type 'descriptive))
|
||
(org-string-nw-p contents)
|
||
(eq 'paragraph
|
||
(org-element-type
|
||
(cl-some (lambda (e)
|
||
(and (org-string-nw-p (org-export-data e info))
|
||
e))
|
||
(org-element-contents item)))))
|
||
(org-trim contents)
|
||
(concat "\n" contents))))))
|
||
|
||
|
||
;;;; Keyword
|
||
|
||
(defun org-ascii-keyword (keyword _contents info)
|
||
"Transcode a KEYWORD element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(let ((key (org-element-property :key keyword))
|
||
(value (org-element-property :value keyword)))
|
||
(cond
|
||
((string= key "ASCII") (org-ascii--justify-element value keyword info))
|
||
((string= key "TOC")
|
||
(org-ascii--justify-element
|
||
(let ((case-fold-search t))
|
||
(cond
|
||
((string-match-p "\\<headlines\\>" value)
|
||
(let ((depth (and (string-match "\\<[0-9]+\\>" value)
|
||
(string-to-number (match-string 0 value))))
|
||
(scope
|
||
(cond
|
||
((string-match ":target +\\(\".+?\"\\|\\S-+\\)" value) ;link
|
||
(org-export-resolve-link
|
||
(org-strip-quotes (match-string 1 value)) info))
|
||
((string-match-p "\\<local\\>" value) keyword)))) ;local
|
||
(org-ascii--build-toc info depth keyword scope)))
|
||
((string-match-p "\\<tables\\>" value)
|
||
(org-ascii--list-tables keyword info))
|
||
((string-match-p "\\<listings\\>" value)
|
||
(org-ascii--list-listings keyword info))))
|
||
keyword info)))))
|
||
|
||
|
||
;;;; Latex Environment
|
||
|
||
(defun org-ascii-latex-environment (latex-environment _contents info)
|
||
"Transcode a LATEX-ENVIRONMENT element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(when (plist-get info :with-latex)
|
||
(org-ascii--justify-element
|
||
(org-remove-indentation (org-element-property :value latex-environment))
|
||
latex-environment info)))
|
||
|
||
|
||
;;;; Latex Fragment
|
||
|
||
(defun org-ascii-latex-fragment (latex-fragment _contents info)
|
||
"Transcode a LATEX-FRAGMENT object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(when (plist-get info :with-latex)
|
||
(org-element-property :value latex-fragment)))
|
||
|
||
|
||
;;;; Line Break
|
||
|
||
(defun org-ascii-line-break (_line-break _contents _info)
|
||
"Transcode a LINE-BREAK object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information." hard-newline)
|
||
|
||
|
||
;;;; Link
|
||
|
||
(defun org-ascii-link (link desc info)
|
||
"Transcode a LINK object from Org to ASCII.
|
||
|
||
DESC is the description part of the link, or the empty string.
|
||
INFO is a plist holding contextual information."
|
||
(let ((type (org-element-property :type link)))
|
||
(cond
|
||
((org-export-custom-protocol-maybe link desc 'ascii info))
|
||
((string= type "coderef")
|
||
(let ((ref (org-element-property :path link)))
|
||
(format (org-export-get-coderef-format ref desc)
|
||
(org-export-resolve-coderef ref info))))
|
||
;; Do not apply a special syntax on radio links. Though, use
|
||
;; transcoded target's contents as output.
|
||
((string= type "radio") desc)
|
||
((member type '("custom-id" "fuzzy" "id"))
|
||
(let ((destination (if (string= type "fuzzy")
|
||
(org-export-resolve-fuzzy-link link info)
|
||
(org-export-resolve-id-link link info))))
|
||
(pcase (org-element-type destination)
|
||
((guard desc)
|
||
(if (plist-get info :ascii-links-to-notes)
|
||
(format "[%s]" desc)
|
||
(concat desc
|
||
(format " (%s)"
|
||
(org-ascii--describe-datum destination info)))))
|
||
;; External file.
|
||
(`plain-text destination)
|
||
(`headline
|
||
(if (org-export-numbered-headline-p destination info)
|
||
(mapconcat #'number-to-string
|
||
(org-export-get-headline-number destination info)
|
||
".")
|
||
(org-export-data (org-element-property :title destination) info)))
|
||
;; Handle enumerable elements and targets within them.
|
||
((and (let number (org-export-get-ordinal
|
||
destination info nil #'org-ascii--has-caption-p))
|
||
(guard number))
|
||
(if (atom number) (number-to-string number)
|
||
(mapconcat #'number-to-string number ".")))
|
||
;; Don't know what to do. Signal it.
|
||
(_ "???"))))
|
||
(t
|
||
(let ((path (org-element-property :raw-link link)))
|
||
(if (not (org-string-nw-p desc)) (format "<%s>" path)
|
||
(concat (format "[%s]" desc)
|
||
(and (not (plist-get info :ascii-links-to-notes))
|
||
(format " (<%s>)" path)))))))))
|
||
|
||
|
||
;;;; Node Properties
|
||
|
||
(defun org-ascii-node-property (node-property _contents _info)
|
||
"Transcode a NODE-PROPERTY element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual
|
||
information."
|
||
(format "%s:%s"
|
||
(org-element-property :key node-property)
|
||
(let ((value (org-element-property :value node-property)))
|
||
(if value (concat " " value) ""))))
|
||
|
||
|
||
;;;; Paragraph
|
||
|
||
(defun org-ascii-paragraph (paragraph contents info)
|
||
"Transcode a PARAGRAPH element from Org to ASCII.
|
||
CONTENTS is the contents of the paragraph, as a string. INFO is
|
||
the plist used as a communication channel."
|
||
(org-ascii--justify-element
|
||
(let ((indented-line-width (plist-get info :ascii-indented-line-width)))
|
||
(if (not (wholenump indented-line-width)) contents
|
||
(concat
|
||
;; Do not indent first paragraph in a section.
|
||
(unless (and (not (org-export-get-previous-element paragraph info))
|
||
(eq (org-element-type (org-export-get-parent paragraph))
|
||
'section))
|
||
(make-string indented-line-width ?\s))
|
||
(replace-regexp-in-string "\\`[ \t]+" "" contents))))
|
||
paragraph info))
|
||
|
||
|
||
;;;; Plain List
|
||
|
||
(defun org-ascii-plain-list (plain-list contents info)
|
||
"Transcode a PLAIN-LIST element from Org to ASCII.
|
||
CONTENTS is the contents of the list. INFO is a plist holding
|
||
contextual information."
|
||
(let ((margin (plist-get info :ascii-list-margin)))
|
||
(if (or (< margin 1)
|
||
(eq (org-element-type (org-export-get-parent plain-list)) 'item))
|
||
contents
|
||
(org-ascii--indent-string contents margin))))
|
||
|
||
|
||
;;;; Plain Text
|
||
|
||
(defun org-ascii-plain-text (text info)
|
||
"Transcode a TEXT string from Org to ASCII.
|
||
INFO is a plist used as a communication channel."
|
||
(let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
|
||
(when (and utf8p (plist-get info :with-smart-quotes))
|
||
(setq text (org-export-activate-smart-quotes text :utf-8 info)))
|
||
(if (not (plist-get info :with-special-strings)) text
|
||
(setq text (replace-regexp-in-string "\\\\-" "" text))
|
||
(if (not utf8p) text
|
||
;; Usual replacements in utf-8 with proper option set.
|
||
(replace-regexp-in-string
|
||
"\\.\\.\\." "…"
|
||
(replace-regexp-in-string
|
||
"--" "–"
|
||
(replace-regexp-in-string "---" "—" text)))))))
|
||
|
||
|
||
;;;; Planning
|
||
|
||
(defun org-ascii-planning (planning _contents info)
|
||
"Transcode a PLANNING element from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist used as a communication
|
||
channel."
|
||
(org-ascii--justify-element
|
||
(mapconcat
|
||
#'identity
|
||
(delq nil
|
||
(list (let ((closed (org-element-property :closed planning)))
|
||
(when closed
|
||
(concat org-closed-string " "
|
||
(org-timestamp-translate closed))))
|
||
(let ((deadline (org-element-property :deadline planning)))
|
||
(when deadline
|
||
(concat org-deadline-string " "
|
||
(org-timestamp-translate deadline))))
|
||
(let ((scheduled (org-element-property :scheduled planning)))
|
||
(when scheduled
|
||
(concat org-scheduled-string " "
|
||
(org-timestamp-translate scheduled))))))
|
||
" ")
|
||
planning info))
|
||
|
||
|
||
;;;; Property Drawer
|
||
|
||
(defun org-ascii-property-drawer (property-drawer contents info)
|
||
"Transcode a PROPERTY-DRAWER element from Org to ASCII.
|
||
CONTENTS holds the contents of the drawer. INFO is a plist
|
||
holding contextual information."
|
||
(and (org-string-nw-p contents)
|
||
(org-ascii--justify-element contents property-drawer info)))
|
||
|
||
|
||
;;;; Quote Block
|
||
|
||
(defun org-ascii-quote-block (_quote-block contents info)
|
||
"Transcode a QUOTE-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
(org-ascii--indent-string contents (plist-get info :ascii-quote-margin)))
|
||
|
||
|
||
;;;; Radio Target
|
||
|
||
(defun org-ascii-radio-target (_radio-target contents _info)
|
||
"Transcode a RADIO-TARGET object from Org to ASCII.
|
||
CONTENTS is the contents of the target. INFO is a plist holding
|
||
contextual information."
|
||
contents)
|
||
|
||
|
||
;;;; Section
|
||
|
||
(defun org-ascii-section (section contents info)
|
||
"Transcode a SECTION element from Org to ASCII.
|
||
CONTENTS is the contents of the section. INFO is a plist holding
|
||
contextual information."
|
||
(let ((links
|
||
(and (plist-get info :ascii-links-to-notes)
|
||
;; Take care of links in first section of the document.
|
||
(not (org-element-lineage section '(headline)))
|
||
(org-ascii--describe-links
|
||
(org-ascii--unique-links section info)
|
||
(org-ascii--current-text-width section info)
|
||
info))))
|
||
(org-ascii--indent-string
|
||
(if (not (org-string-nw-p links)) contents
|
||
(concat (org-element-normalize-string contents) "\n\n" links))
|
||
;; Do not apply inner margin if parent headline is low level.
|
||
(let ((headline (org-export-get-parent-headline section)))
|
||
(if (or (not headline) (org-export-low-level-p headline info)) 0
|
||
(plist-get info :ascii-inner-margin))))))
|
||
|
||
|
||
;;;; Special Block
|
||
|
||
(defun org-ascii-special-block (_special-block contents _info)
|
||
"Transcode a SPECIAL-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the block. INFO is a plist
|
||
holding contextual information."
|
||
;; "JUSTIFYLEFT" and "JUSTIFYRIGHT" have already been taken care of
|
||
;; at a lower level. There is no other special block type to
|
||
;; handle.
|
||
contents)
|
||
|
||
|
||
;;;; Src Block
|
||
|
||
(defun org-ascii-src-block (src-block _contents info)
|
||
"Transcode a SRC-BLOCK element from Org to ASCII.
|
||
CONTENTS holds the contents of the item. INFO is a plist holding
|
||
contextual information."
|
||
(let ((caption (org-ascii--build-caption src-block info))
|
||
(caption-above-p (plist-get info :ascii-caption-above))
|
||
(code (org-export-format-code-default src-block info)))
|
||
(if (equal code "") ""
|
||
(org-ascii--justify-element
|
||
(concat
|
||
(and caption caption-above-p (concat caption "\n"))
|
||
(org-ascii--box-string code info)
|
||
(and caption (not caption-above-p) (concat "\n" caption)))
|
||
src-block info))))
|
||
|
||
|
||
;;;; Statistics Cookie
|
||
|
||
(defun org-ascii-statistics-cookie (statistics-cookie _contents _info)
|
||
"Transcode a STATISTICS-COOKIE object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-element-property :value statistics-cookie))
|
||
|
||
|
||
;;;; Subscript
|
||
|
||
(defun org-ascii-subscript (subscript contents _info)
|
||
"Transcode a SUBSCRIPT object from Org to ASCII.
|
||
CONTENTS is the contents of the object. INFO is a plist holding
|
||
contextual information."
|
||
(if (org-element-property :use-brackets-p subscript)
|
||
(format "_{%s}" contents)
|
||
(format "_%s" contents)))
|
||
|
||
|
||
;;;; Superscript
|
||
|
||
(defun org-ascii-superscript (superscript contents _info)
|
||
"Transcode a SUPERSCRIPT object from Org to ASCII.
|
||
CONTENTS is the contents of the object. INFO is a plist holding
|
||
contextual information."
|
||
(if (org-element-property :use-brackets-p superscript)
|
||
(format "^{%s}" contents)
|
||
(format "^%s" contents)))
|
||
|
||
|
||
;;;; Strike-through
|
||
|
||
(defun org-ascii-strike-through (_strike-through contents _info)
|
||
"Transcode STRIKE-THROUGH from Org to ASCII.
|
||
CONTENTS is text with strike-through markup. INFO is a plist
|
||
holding contextual information."
|
||
(format "+%s+" contents))
|
||
|
||
|
||
;;;; Table
|
||
|
||
(defun org-ascii-table (table contents info)
|
||
"Transcode a TABLE element from Org to ASCII.
|
||
CONTENTS is the contents of the table. INFO is a plist holding
|
||
contextual information."
|
||
(let ((caption (org-ascii--build-caption table info))
|
||
(caption-above-p (plist-get info :ascii-caption-above)))
|
||
(org-ascii--justify-element
|
||
(concat
|
||
;; Possibly add a caption string above.
|
||
(and caption caption-above-p (concat caption "\n"))
|
||
;; Insert table. Note: "table.el" tables are left unmodified.
|
||
(cond ((eq (org-element-property :type table) 'org) contents)
|
||
((and (plist-get info :ascii-table-use-ascii-art)
|
||
(eq (plist-get info :ascii-charset) 'utf-8)
|
||
(require 'ascii-art-to-unicode nil t))
|
||
(with-temp-buffer
|
||
(insert (org-remove-indentation
|
||
(org-element-property :value table)))
|
||
(goto-char (point-min))
|
||
(aa2u)
|
||
(goto-char (point-max))
|
||
(skip-chars-backward " \r\t\n")
|
||
(buffer-substring (point-min) (point))))
|
||
(t (org-remove-indentation (org-element-property :value table))))
|
||
;; Possible add a caption string below.
|
||
(and (not caption-above-p) caption))
|
||
table info)))
|
||
|
||
|
||
;;;; Table Cell
|
||
|
||
(defun org-ascii--table-cell-width (table-cell info)
|
||
"Return width of TABLE-CELL.
|
||
|
||
INFO is a plist used as a communication channel.
|
||
|
||
Width of a cell is determined either by a width cookie in the
|
||
same column as the cell, or by the maximum cell's length in that
|
||
column.
|
||
|
||
When `org-ascii-table-widen-columns' is non-nil, width cookies
|
||
are ignored."
|
||
(let* ((row (org-export-get-parent table-cell))
|
||
(table (org-export-get-parent row))
|
||
(col (let ((cells (org-element-contents row)))
|
||
(- (length cells) (length (memq table-cell cells)))))
|
||
(cache
|
||
(or (plist-get info :ascii-table-cell-width-cache)
|
||
(plist-get (setq info
|
||
(plist-put info :ascii-table-cell-width-cache
|
||
(make-hash-table :test 'equal)))
|
||
:ascii-table-cell-width-cache)))
|
||
(key (cons table col))
|
||
(widenp (plist-get info :ascii-table-widen-columns)))
|
||
(or (gethash key cache)
|
||
(puthash
|
||
key
|
||
(let ((cookie-width (org-export-table-cell-width table-cell info)))
|
||
(or (and (not widenp) cookie-width)
|
||
(let ((contents-width
|
||
(let ((max-width 0))
|
||
(org-element-map table 'table-row
|
||
(lambda (row)
|
||
(setq max-width
|
||
(max (string-width
|
||
(org-export-data
|
||
(org-element-contents
|
||
(elt (org-element-contents row) col))
|
||
info))
|
||
max-width)))
|
||
info)
|
||
max-width)))
|
||
(cond ((not cookie-width) contents-width)
|
||
(widenp (max cookie-width contents-width))
|
||
(t cookie-width)))))
|
||
cache))))
|
||
|
||
(defun org-ascii-table-cell (table-cell contents info)
|
||
"Transcode a TABLE-CELL object from Org to ASCII.
|
||
CONTENTS is the cell contents. INFO is a plist used as
|
||
a communication channel."
|
||
;; Determine column width. When `org-ascii-table-widen-columns'
|
||
;; is nil and some width cookie has set it, use that value.
|
||
;; Otherwise, compute the maximum width among transcoded data of
|
||
;; each cell in the column.
|
||
(let ((width (org-ascii--table-cell-width table-cell info)))
|
||
;; When contents are too large, truncate them.
|
||
(unless (or (plist-get info :ascii-table-widen-columns)
|
||
(<= (string-width (or contents "")) width))
|
||
(setq contents (concat (substring contents 0 (- width 2)) "=>")))
|
||
;; Align contents correctly within the cell.
|
||
(let* ((indent-tabs-mode nil)
|
||
(data
|
||
(when contents
|
||
(org-ascii--justify-lines
|
||
contents width
|
||
(org-export-table-cell-alignment table-cell info)))))
|
||
(setq contents
|
||
(concat data
|
||
(make-string (- width (string-width (or data ""))) ?\s))))
|
||
;; Return cell.
|
||
(concat (format " %s " contents)
|
||
(when (memq 'right (org-export-table-cell-borders table-cell info))
|
||
(if (eq (plist-get info :ascii-charset) 'utf-8) "│" "|")))))
|
||
|
||
|
||
;;;; Table Row
|
||
|
||
(defun org-ascii-table-row (table-row contents info)
|
||
"Transcode a TABLE-ROW element from Org to ASCII.
|
||
CONTENTS is the row contents. INFO is a plist used as
|
||
a communication channel."
|
||
(when (eq (org-element-property :type table-row) 'standard)
|
||
(let ((build-hline
|
||
(function
|
||
(lambda (lcorner horiz vert rcorner)
|
||
(concat
|
||
(apply
|
||
'concat
|
||
(org-element-map table-row 'table-cell
|
||
(lambda (cell)
|
||
(let ((width (org-ascii--table-cell-width cell info))
|
||
(borders (org-export-table-cell-borders cell info)))
|
||
(concat
|
||
;; In order to know if CELL starts the row, do
|
||
;; not compare it with the first cell in the
|
||
;; row as there might be a special column.
|
||
;; Instead, compare it with first exportable
|
||
;; cell, obtained with `org-element-map'.
|
||
(when (and (memq 'left borders)
|
||
(eq (org-element-map table-row 'table-cell
|
||
'identity info t)
|
||
cell))
|
||
lcorner)
|
||
(make-string (+ 2 width) (string-to-char horiz))
|
||
(cond
|
||
((not (memq 'right borders)) nil)
|
||
((eq (car (last (org-element-contents table-row))) cell)
|
||
rcorner)
|
||
(t vert)))))
|
||
info)) "\n"))))
|
||
(utf8p (eq (plist-get info :ascii-charset) 'utf-8))
|
||
(borders (org-export-table-cell-borders
|
||
(org-element-map table-row 'table-cell 'identity info t)
|
||
info)))
|
||
(concat (cond
|
||
((and (memq 'top borders) (or utf8p (memq 'above borders)))
|
||
(if utf8p (funcall build-hline "┍" "━" "┯" "┑")
|
||
(funcall build-hline "+" "-" "+" "+")))
|
||
((memq 'above borders)
|
||
(if utf8p (funcall build-hline "├" "─" "┼" "┤")
|
||
(funcall build-hline "+" "-" "+" "+"))))
|
||
(when (memq 'left borders) (if utf8p "│" "|"))
|
||
contents "\n"
|
||
(when (and (memq 'bottom borders) (or utf8p (memq 'below borders)))
|
||
(if utf8p (funcall build-hline "┕" "━" "┷" "┙")
|
||
(funcall build-hline "+" "-" "+" "+")))))))
|
||
|
||
|
||
;;;; Timestamp
|
||
|
||
(defun org-ascii-timestamp (timestamp _contents info)
|
||
"Transcode a TIMESTAMP object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(org-ascii-plain-text (org-timestamp-translate timestamp) info))
|
||
|
||
|
||
;;;; Underline
|
||
|
||
(defun org-ascii-underline (_underline contents _info)
|
||
"Transcode UNDERLINE from Org to ASCII.
|
||
CONTENTS is the text with underline markup. INFO is a plist
|
||
holding contextual information."
|
||
(format "_%s_" contents))
|
||
|
||
|
||
;;;; Verbatim
|
||
|
||
(defun org-ascii-verbatim (verbatim _contents info)
|
||
"Return a VERBATIM object from Org to ASCII.
|
||
CONTENTS is nil. INFO is a plist holding contextual information."
|
||
(format (plist-get info :ascii-verbatim-format)
|
||
(org-element-property :value verbatim)))
|
||
|
||
|
||
;;;; Verse Block
|
||
|
||
(defun org-ascii-verse-block (verse-block contents info)
|
||
"Transcode a VERSE-BLOCK element from Org to ASCII.
|
||
CONTENTS is verse block contents. INFO is a plist holding
|
||
contextual information."
|
||
(org-ascii--indent-string
|
||
(org-ascii--justify-element contents verse-block info)
|
||
(plist-get info :ascii-quote-margin)))
|
||
|
||
|
||
|
||
;;; Filters
|
||
|
||
(defun org-ascii-filter-headline-blank-lines (headline _backend info)
|
||
"Filter controlling number of blank lines after a headline.
|
||
|
||
HEADLINE is a string representing a transcoded headline. BACKEND
|
||
is symbol specifying back-end used for export. INFO is plist
|
||
containing the communication channel.
|
||
|
||
This function only applies to `ascii' back-end. See
|
||
`org-ascii-headline-spacing' for information."
|
||
(let ((headline-spacing (plist-get info :ascii-headline-spacing)))
|
||
(if (not headline-spacing) headline
|
||
(let ((blanks (make-string (1+ (cdr headline-spacing)) ?\n)))
|
||
(replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" blanks headline)))))
|
||
|
||
(defun org-ascii-filter-paragraph-spacing (tree _backend info)
|
||
"Filter controlling number of blank lines between paragraphs.
|
||
|
||
TREE is the parse tree. BACKEND is the symbol specifying
|
||
back-end used for export. INFO is a plist used as
|
||
a communication channel.
|
||
|
||
See `org-ascii-paragraph-spacing' for information."
|
||
(let ((paragraph-spacing (plist-get info :ascii-paragraph-spacing)))
|
||
(when (wholenump paragraph-spacing)
|
||
(org-element-map tree 'paragraph
|
||
(lambda (p)
|
||
(when (eq (org-element-type (org-export-get-next-element p info))
|
||
'paragraph)
|
||
(org-element-put-property p :post-blank paragraph-spacing))))))
|
||
tree)
|
||
|
||
(defun org-ascii-filter-comment-spacing (tree _backend info)
|
||
"Filter removing blank lines between comments.
|
||
TREE is the parse tree. BACKEND is the symbol specifying
|
||
back-end used for export. INFO is a plist used as
|
||
a communication channel."
|
||
(org-element-map tree '(comment comment-block)
|
||
(lambda (c)
|
||
(when (memq (org-element-type (org-export-get-next-element c info))
|
||
'(comment comment-block))
|
||
(org-element-put-property c :post-blank 0))))
|
||
tree)
|
||
|
||
|
||
|
||
;;; End-user functions
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-convert-region-to-ascii ()
|
||
"Assume region has Org syntax, and convert it to plain ASCII."
|
||
(interactive)
|
||
(let ((org-ascii-charset 'ascii))
|
||
(org-export-replace-region-by 'ascii)))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-convert-region-to-utf8 ()
|
||
"Assume region has Org syntax, and convert it to UTF-8."
|
||
(interactive)
|
||
(let ((org-ascii-charset 'utf-8))
|
||
(org-export-replace-region-by 'ascii)))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-export-as-ascii
|
||
(&optional async subtreep visible-only body-only ext-plist)
|
||
"Export current buffer to a text buffer.
|
||
|
||
If narrowing is active in the current buffer, only export its
|
||
narrowed part.
|
||
|
||
If a region is active, export that region.
|
||
|
||
A non-nil optional argument ASYNC means the process should happen
|
||
asynchronously. The resulting buffer should be accessible
|
||
through the `org-export-stack' interface.
|
||
|
||
When optional argument SUBTREEP is non-nil, export the sub-tree
|
||
at point, extracting information from the headline properties
|
||
first.
|
||
|
||
When optional argument VISIBLE-ONLY is non-nil, don't export
|
||
contents of hidden elements.
|
||
|
||
When optional argument BODY-ONLY is non-nil, strip title and
|
||
table of contents from output.
|
||
|
||
EXT-PLIST, when provided, is a property list with external
|
||
parameters overriding Org default settings, but still inferior to
|
||
file-local settings.
|
||
|
||
Export is done in a buffer named \"*Org ASCII Export*\", which
|
||
will be displayed when `org-export-show-temporary-export-buffer'
|
||
is non-nil."
|
||
(interactive)
|
||
(org-export-to-buffer 'ascii "*Org ASCII Export*"
|
||
async subtreep visible-only body-only ext-plist (lambda () (text-mode))))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-export-to-ascii
|
||
(&optional async subtreep visible-only body-only ext-plist)
|
||
"Export current buffer to a text file.
|
||
|
||
If narrowing is active in the current buffer, only export its
|
||
narrowed part.
|
||
|
||
If a region is active, export that region.
|
||
|
||
A non-nil optional argument ASYNC means the process should happen
|
||
asynchronously. The resulting file should be accessible through
|
||
the `org-export-stack' interface.
|
||
|
||
When optional argument SUBTREEP is non-nil, export the sub-tree
|
||
at point, extracting information from the headline properties
|
||
first.
|
||
|
||
When optional argument VISIBLE-ONLY is non-nil, don't export
|
||
contents of hidden elements.
|
||
|
||
When optional argument BODY-ONLY is non-nil, strip title and
|
||
table of contents from output.
|
||
|
||
EXT-PLIST, when provided, is a property list with external
|
||
parameters overriding Org default settings, but still inferior to
|
||
file-local settings.
|
||
|
||
Return output file's name."
|
||
(interactive)
|
||
(let ((file (org-export-output-file-name ".txt" subtreep)))
|
||
(org-export-to-file 'ascii file
|
||
async subtreep visible-only body-only ext-plist)))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-publish-to-ascii (plist filename pub-dir)
|
||
"Publish an Org file to ASCII.
|
||
|
||
FILENAME is the filename of the Org file to be published. PLIST
|
||
is the property list for the given project. PUB-DIR is the
|
||
publishing directory.
|
||
|
||
Return output file name."
|
||
(org-publish-org-to
|
||
'ascii filename ".txt" `(:ascii-charset ascii ,@plist) pub-dir))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-publish-to-latin1 (plist filename pub-dir)
|
||
"Publish an Org file to Latin-1.
|
||
|
||
FILENAME is the filename of the Org file to be published. PLIST
|
||
is the property list for the given project. PUB-DIR is the
|
||
publishing directory.
|
||
|
||
Return output file name."
|
||
(org-publish-org-to
|
||
'ascii filename ".txt" `(:ascii-charset latin1 ,@plist) pub-dir))
|
||
|
||
;;;###autoload
|
||
(defun org-ascii-publish-to-utf8 (plist filename pub-dir)
|
||
"Publish an org file to UTF-8.
|
||
|
||
FILENAME is the filename of the Org file to be published. PLIST
|
||
is the property list for the given project. PUB-DIR is the
|
||
publishing directory.
|
||
|
||
Return output file name."
|
||
(org-publish-org-to
|
||
'ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
|
||
|
||
|
||
(provide 'ox-ascii)
|
||
|
||
;; Local variables:
|
||
;; generated-autoload-file: "org-loaddefs.el"
|
||
;; coding: utf-8
|
||
;; End:
|
||
|
||
;;; ox-ascii.el ends here
|