152 lines
6.8 KiB
EmacsLisp
152 lines
6.8 KiB
EmacsLisp
;;; origami-parsers.el --- Collection of parsers -*- lexical-binding: t -*-
|
|
|
|
;; Author: Greg Sexton <gregsexton@gmail.com>
|
|
;; Version: 1.0
|
|
;; Keywords: parsers
|
|
;; URL: https://github.com/gregsexton/
|
|
|
|
;; The MIT License (MIT)
|
|
|
|
;; Copyright (c) 2014 Greg Sexton
|
|
|
|
;; Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
;; of this software and associated documentation files (the "Software"), to deal
|
|
;; in the Software without restriction, including without limitation the rights
|
|
;; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
;; copies of the Software, and to permit persons to whom the Software is
|
|
;; furnished to do so, subject to the following conditions:
|
|
|
|
;; The above copyright notice and this permission notice shall be included in
|
|
;; all copies or substantial portions of the Software.
|
|
|
|
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
;; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
;; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
;; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
;; THE SOFTWARE.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
(require 'cl)
|
|
(require 'dash)
|
|
|
|
(defcustom origami-parser-alist
|
|
'((java-mode . origami-java-parser)
|
|
(c-mode . origami-c-style-parser)
|
|
(c++-mode . origami-c-style-parser)
|
|
(perl-mode . origami-c-style-parser)
|
|
(cperl-mode . origami-c-style-parser)
|
|
(js-mode . origami-c-style-parser)
|
|
(js2-mode . origami-c-style-parser)
|
|
(js3-mode . origami-c-style-parser)
|
|
(emacs-lisp-mode . origami-elisp-parser)
|
|
(lisp-interaction-mode . origami-elisp-parser)
|
|
(clojure-mode . origami-clj-parser))
|
|
"alist mapping major-mode to parser function."
|
|
:type 'hook
|
|
:group 'origami)
|
|
|
|
(defun origami-get-positions (content regex)
|
|
"Returns a list of positions where REGEX matches in CONTENT. A
|
|
position is a cons cell of the character and the numerical
|
|
position in the CONTENT."
|
|
(with-temp-buffer
|
|
(insert content)
|
|
(goto-char (point-min))
|
|
(let (acc)
|
|
(while (re-search-forward regex nil t)
|
|
(let ((match (match-string 0)))
|
|
(setq acc (cons (cons match (- (point) (length match)))
|
|
acc))))
|
|
(reverse acc))))
|
|
|
|
(defun origami-build-pair-tree (create open close positions)
|
|
(cl-labels ((build (positions)
|
|
;; this is so horrible, but fast
|
|
(let (acc beg (should-continue t))
|
|
(while (and should-continue positions)
|
|
(cond ((equal (caar positions) open)
|
|
(if beg ;go down a level
|
|
(let* ((res (build positions))
|
|
(new-pos (car res))
|
|
(children (cdr res)))
|
|
(setq positions (cdr new-pos))
|
|
(setq acc (cons (funcall create beg (cdar new-pos) (length open) children)
|
|
acc))
|
|
(setq beg nil))
|
|
;; begin a new pair
|
|
(setq beg (cdar positions))
|
|
(setq positions (cdr positions))))
|
|
((equal (caar positions) close)
|
|
(if beg
|
|
(progn ;close with no children
|
|
(setq acc (cons (funcall create beg (cdar positions) (length close) nil)
|
|
acc))
|
|
(setq positions (cdr positions))
|
|
(setq beg nil))
|
|
(setq should-continue nil)))))
|
|
(cons positions (reverse acc)))))
|
|
(cdr (build positions))))
|
|
|
|
;;; TODO: tag these nodes? have ability to manipulate nodes that are
|
|
;;; tagged? in a scoped fashion?
|
|
(defun origami-javadoc-parser (create)
|
|
(lambda (content)
|
|
(let ((positions (->> (origami-get-positions content "/\\*\\*\\|\\*/")
|
|
(-filter (lambda (position)
|
|
(eq (get-text-property 0 'face (car position))
|
|
'font-lock-doc-face))))))
|
|
(origami-build-pair-tree create "/**" "*/" positions))))
|
|
|
|
(defun origami-c-style-parser (create)
|
|
(lambda (content)
|
|
(let ((positions (->> (origami-get-positions content "[{}]")
|
|
(remove-if (lambda (position)
|
|
(let ((face (get-text-property 0 'face (car position))))
|
|
(-any? (lambda (f)
|
|
(memq f '(font-lock-doc-face
|
|
font-lock-comment-face
|
|
font-lock-string-face)))
|
|
(if (listp face) face (list face)))))))))
|
|
(origami-build-pair-tree create "{" "}" positions))))
|
|
|
|
(defun origami-java-parser (create)
|
|
(let ((c-style (origami-c-style-parser create))
|
|
(javadoc (origami-javadoc-parser create)))
|
|
(lambda (content)
|
|
(origami-fold-children
|
|
(origami-fold-shallow-merge (origami-fold-root-node (funcall c-style content))
|
|
(origami-fold-root-node (funcall javadoc content)))))))
|
|
|
|
(defun origami-lisp-parser (create regex)
|
|
(lambda (content)
|
|
(with-temp-buffer
|
|
(insert content)
|
|
(goto-char (point-min))
|
|
(beginning-of-defun -1)
|
|
(let (beg end offset acc)
|
|
(while (< (point) (point-max))
|
|
(setq beg (point))
|
|
(search-forward-regexp regex nil t)
|
|
(setq offset (- (point) beg))
|
|
(end-of-defun)
|
|
(backward-char) ;move point to one after the last paren
|
|
(setq end (1- (point))) ;don't include the last paren in the fold
|
|
(when (> offset 0)
|
|
(setq acc (cons (funcall create beg end offset nil) acc)))
|
|
(beginning-of-defun -1))
|
|
(reverse acc)))))
|
|
|
|
(defun origami-elisp-parser (create)
|
|
(origami-lisp-parser create "(def\\w*\\s-*\\(\\s_\\|\\w\\|[?!]\\)*\\([ \\t]*(.*?)\\)?"))
|
|
|
|
(defun origami-clj-parser (create)
|
|
(origami-lisp-parser create "(def\\(\\w\\|-\\)*\\s-*\\(\\s_\\|\\w\\|[?!]\\)*\\([ \\t]*\\[.*?\\]\\)?"))
|
|
|
|
(provide 'origami-parsers)
|
|
|
|
;;; origami-parsers.el ends here
|