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85 lines
3.4 KiB
EmacsLisp
85 lines
3.4 KiB
EmacsLisp
;;; syntax-tests.el --- tests for syntax.c functions -*- lexical-binding: t -*-
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;; Copyright (C) 2017-2019 Free Software Foundation, Inc.
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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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;;; Code:
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(require 'ert)
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(ert-deftest parse-partial-sexp-continue-over-comment-marker ()
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"Continue a parse that stopped in the middle of a comment marker."
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(with-temp-buffer
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(let ((table (make-syntax-table)))
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(modify-syntax-entry ?/ ". 124")
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(modify-syntax-entry ?* ". 23b")
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(set-syntax-table table))
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(insert "/*C*/\nX")
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(goto-char (point-min))
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(let* ((pointC (progn (search-forward "C") (1- (point))))
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(preC (1- pointC))
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(pointX (progn (search-forward "X") (1- (point))))
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(aftC (+ 2 pointC))
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(ppsC (parse-partial-sexp (point-min) pointC))
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(pps-preC (parse-partial-sexp (point-min) preC))
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(pps-aftC (parse-partial-sexp (point-min) aftC))
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(ppsX (parse-partial-sexp (point-min) pointX)))
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;; C should be inside comment.
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(should (= (nth 0 ppsC) 0))
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(should (eq (nth 4 ppsC) t))
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(should (= (nth 8 ppsC) (- pointC 2)))
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;; X should not be in comment or list.
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(should (= (nth 0 ppsX) 0))
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(should-not (nth 4 ppsX))
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;; Try using OLDSTATE.
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(should (equal (parse-partial-sexp preC pointC nil nil pps-preC)
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ppsC))
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(should (equal (parse-partial-sexp pointC aftC nil nil ppsC)
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pps-aftC))
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(should (equal (parse-partial-sexp preC aftC nil nil pps-preC)
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pps-aftC))
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(should (equal (parse-partial-sexp aftC pointX nil nil pps-aftC)
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ppsX)))))
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(ert-deftest parse-partial-sexp-paren-comments ()
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"Test syntax parsing with paren comment markers.
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Specifically, where the first character of the comment marker is
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also has open paren syntax (see Bug#24870)."
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(with-temp-buffer
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(let ((table (make-syntax-table)))
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(modify-syntax-entry ?\{ "(}1nb" table)
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(modify-syntax-entry ?\} "){4nb" table)
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(modify-syntax-entry ?- ". 123" table)
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(set-syntax-table table))
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(insert "{-C-}\nX")
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(goto-char (point-min))
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(let* ((pointC (progn (search-forward "C") (1- (point))))
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(pointX (progn (search-forward "X") (1- (point))))
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(ppsC (parse-partial-sexp (point-min) pointC))
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(ppsX (parse-partial-sexp (point-min) pointX)))
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;; C should be inside nestable comment, not list.
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(should (= (nth 0 ppsC) 0))
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(should (= (nth 4 ppsC) 1))
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(should (= (nth 8 ppsC) (- pointC 2)))
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;; X should not be in comment or list.
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(should (= (nth 0 ppsX) 0))
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(should-not (nth 4 ppsX))
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;; Try using OLDSTATE.
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(should (equal (parse-partial-sexp pointC pointX nil nil ppsC)
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ppsX)))))
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;;; syntax-tests.el ends here
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