mirror of
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bdb6956afd
With text-quoting-style 'grave keeps "'" and "`" quotes unaltered
for further processing done by this code (regardless of locale...).
The tools that read the reStructuredText markup generated can do
their styling instead.
Added temporary conversions of ' and ` to \001 and \002 so that
's and `s outside of `...' and `...` are converted separately
('s restored back to ' and `s converted to \`).
Both `...' and `...` are finally "converted" to `...` (not ``...``).
https://docutils.sourceforge.io/docs/user/rst/quickref.html documents
that as `interpreted text`:
"The rendering and meaning of interpreted text is domain- or
application-dependent. It can be used for things like index
entries or explicit descriptive markup (like program identifiers)."
Which looks pretty much right.
89 lines
2.8 KiB
EmacsLisp
89 lines
2.8 KiB
EmacsLisp
;;; rstdoc.el --- help generate documentation from docstrings -*-lexical-binding: t-*-
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;; Copyright (C) 2018 David Bremner
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;; Author: David Bremner <david@tethera.net>
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;; Created: 26 May 2018
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;; Keywords: emacs lisp, documentation
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;; Homepage: https://notmuchmail.org
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;; This file is not part of GNU Emacs.
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;; rstdoc.el is free software: you can redistribute it and/or modify it
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;; 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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;;
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;; rstdoc.el is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with rstdoc.el. If not, see <https://www.gnu.org/licenses/>.
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;;
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;;; Commentary:
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;; Rstdoc provides a facility to extract all of the docstrings defined in
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;; an elisp source file. Usage:
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;;
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;; emacs -Q --batch -L . -l rstdoc -f rstdoc-batch-extract foo.el foo.rsti
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;;; Code:
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(defun rstdoc-batch-extract ()
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"Extract docstrings to and from the files on the command line."
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(apply #'rstdoc-extract command-line-args-left))
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(defun rstdoc-extract (in-file out-file)
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"Write docstrings from IN-FILE to OUT-FILE."
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(load-file in-file)
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(let* ((definitions (cdr (assoc (expand-file-name in-file) load-history)))
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(text-quoting-style 'grave)
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(doc-hash (make-hash-table :test 'eq)))
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(mapc
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(lambda (elt)
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(let ((pair
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(pcase elt
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(`(defun . ,name) (cons name (documentation name)))
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(`(,_ . ,_) nil)
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(sym (cons sym (get sym 'variable-documentation))))))
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(when (and pair (cdr pair))
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(puthash (car pair) (cdr pair) doc-hash))))
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definitions)
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(with-temp-buffer
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(maphash
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(lambda (key val)
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(rstdoc--insert-docstring key val))
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doc-hash)
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(write-region (point-min) (point-max) out-file))))
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(defun rstdoc--insert-docstring (symbol docstring)
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(insert (format "\n.. |docstring::%s| replace::\n" symbol))
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(insert (replace-regexp-in-string "^" " "
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(rstdoc--rst-quote-string docstring)))
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(insert "\n"))
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(defvar rst--escape-alist
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'( ("\\\\='" . "\001")
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("`\\([^\n`']*\\)[`']" . "\002\\1\002") ;; good enough for now...
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("`" . "\\\\`")
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("\001" . "'")
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("\002" . "`")
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("^[[:space:]]*$" . "|br|")
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("^[[:space:]]" . "|indent| "))
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"list of (regex . replacement) pairs")
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(defun rstdoc--rst-quote-string (str)
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(with-temp-buffer
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(insert str)
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(dolist (pair rst--escape-alist)
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(goto-char (point-min))
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(while (re-search-forward (car pair) nil t)
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(replace-match (cdr pair))))
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(buffer-substring (point-min) (point-max))))
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(provide 'rstdoc)
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;;; rstdoc.el ends here
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