annotate tests/automated/syntax-tests.el @ 5885:c8bbb32fe124

Always return a string, #'current-message. lisp/ChangeLog addition: 2015-04-04 Aidan Kehoe <kehoea@parhasard.net> * gutter-items.el (append-progress-feedback): * gutter-items.el (abort-progress-feedback): Correct comments in both these functions, it's the progress stack being adjusted, not the message stack. * simple.el (message-stack): Describe my recent change in the structure of this. * simple.el (current-message): Adjust the implementation of this to always return the string displayed.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 04 Apr 2015 13:49:30 +0100
parents 071b810ceb18
children
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1 ;; Copyright (C) 1999 Free Software Foundation, Inc.
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2
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3 ;; Author: Yoshiki Hayashi <t90553@mail.ecc.u-tokyo.ac.jp>
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4 ;; Maintainer: Yoshiki Hayashi <t90553@mail.ecc.u-tokyo.ac.jp>
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5 ;; Created: 1999
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6 ;; Keywords: tests
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software: you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by the
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12 ;; Free Software Foundation, either version 3 of the License, or (at your
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13 ;; option) any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT
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16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 ;; for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>.
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22
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23 ;;; Synched up with: Not in FSF.
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24
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25 ;;; Commentary:
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26
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27 ;; Test syntax related functions.
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28 ;; Right now it tests scan_words using forward-word and backward-word.
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29 ;; See test-harness.el for instructions on how to run these tests.
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30
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31 ;;; Notation
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32 ;; W: word constituent character.
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33 ;; NW: non word constituent character.
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34 ;; -!-: current point.
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35 ;; EOB: end of buffer
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36 ;; BOB: beginning of buffer.
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37
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38 ;; Algorithm of scan_words is simple. It just searches SW and then
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39 ;; moves to NW. When with MULE, it also stops at word boundary. Word
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40 ;; boundary is tricky and listing all possible cases will be huge.
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41 ;; Those test are omitted here as it doesn't affect core
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42 ;; functionality.
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43
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44 (defun test-forward-word (string stop)
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45 (goto-char (point-max))
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46 (let ((point (point)))
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47 (insert string)
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48 (goto-char point)
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49 (forward-word 1)
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50 (Assert (eq (point) (+ point stop)))))
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51
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52 (with-temp-buffer
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53 ;; -!- W NW
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54 (test-forward-word "W " 1)
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55 (test-forward-word "WO " 2)
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56 ;; -!- W EOB
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57 (test-forward-word "W" 1)
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58 (test-forward-word "WO" 2)
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59 ;; -!- NW EOB
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60 (test-forward-word " " 1)
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61 (test-forward-word " !" 2)
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62 ;; -!- NW W NW
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63 (test-forward-word " W " 2)
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64 (test-forward-word " WO " 3)
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65 (test-forward-word " !W " 3)
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66 (test-forward-word " !WO " 4)
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67 ;; -!- NW W EOB
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68 (test-forward-word " W" 2)
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69 (test-forward-word " WO" 3)
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70 (test-forward-word " !W" 3)
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71 (test-forward-word " !WO" 4))
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72
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73 (defun test-backward-word (string stop)
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74 (goto-char (point-min))
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75 (insert string)
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76 (let ((point (point)))
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77 (backward-word 1)
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78 (Assert (eq (point) (- point stop)))))
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79
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80 (with-temp-buffer
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81 ;; NW W -!-
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82 (test-backward-word " W" 1)
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83 (test-backward-word " WO" 2)
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84 ;; BOB W -!-
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85 (test-backward-word "W" 1)
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86 (test-backward-word "WO" 2)
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87 ;; BOB NW -!-
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88 ;; -!-NW EOB
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89 (test-backward-word " " 1)
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90 (test-backward-word " !" 2)
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91 ;; NW W NW -!-
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92 (test-backward-word " W " 2)
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93 (test-backward-word " WO " 3)
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94 (test-backward-word " W !" 3)
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95 (test-backward-word " WO !" 4)
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96 ;; BOB W NW -!-
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97 (test-backward-word "W " 2)
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98 (test-backward-word "WO " 3)
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99 (test-backward-word "W !" 3)
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100 (test-backward-word "WO !" 4))
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101
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102 ;; Works like test-forward-word, except for the following:
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103 ;; after <string> is inserted, the syntax-table <apply-syntax>
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104 ;; is applied to position <apply-pos>.
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105 ;; <apply-pos> can be in the form (start . end), or can be a
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106 ;; character position.
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107 (defun test-syntax-table (string apply-pos apply-syntax stop)
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108 ;; We don't necessarily have syntax-table properties ...
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109 (when (fboundp 'lookup-syntax-properties) ; backwards compatible kludge
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110 ;; ... and they may not be enabled by default if we do.
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111 (setq lookup-syntax-properties t)
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112 (goto-char (point-max))
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113 (unless (consp apply-pos)
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114 (setq apply-pos `(,apply-pos . ,(+ 1 apply-pos))))
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115 (let ((point (point)))
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116 (insert string)
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117 (put-text-property (+ point (car apply-pos)) (+ point (cdr apply-pos))
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118 'syntax-table apply-syntax)
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119 (goto-char point)
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120 (forward-word 1)
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121 (Assert (eq (point) (+ point stop))))))
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122
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123 ;; test syntax-table extents
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124 (with-temp-buffer
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125 ;; Apply punctuation to word
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126 (test-syntax-table "WO" 1 `(,(syntax-string-to-code ".")) 1)
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127 ;; Apply word to punctuation
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128 (test-syntax-table "W." 1 `(,(syntax-string-to-code "w")) 2))
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129
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130 ;; According to Ralf Angeli in
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131 ;; http://article.gmane.org/gmane.emacs.xemacs.beta/17353:
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132 ;; Using a fresh CVS checkout of XEmacs trunk the following snippet
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133 ;; returns "1" when evaluated whereas it returns "5" in GNU Emacs 21.3,
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134 ;; CVS GNU Emacs and XEmacs 21.4.15.
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135 ;; If `set-syntax-table' is used instead of `with-syntax-table', CVS
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136 ;; XEmacs returns "5" as well, so I suppose that there is a problem in
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137 ;; `with-syntax-table' or a function called by it.
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138
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139 ;; Fixed 2007-03-25 Olivier Galibert <20070324221053.GA48218@dspnet.fr.eu.org>
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140 (with-temp-buffer
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141 (with-syntax-table (make-syntax-table)
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142 (insert "foo bar")
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143 (backward-sexp 1)
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144 (Assert (eql (point) 5))))
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145
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146 ;; Test forward-comment at buffer boundaries
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147 ;; #### The second Assert fails (once interpreted, once compiled) on 21.4.9
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148 ;; with sjt's version of Andy's syntax-text-property-killer patch.
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149 (with-temp-buffer
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150 (Skip-Test-Unless (fboundp 'c-mode)
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151 "c-mode unavailable"
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152 "comment and parse-partial-sexp tests"
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153 (c-mode)
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154
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155 (insert "// comment\n")
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156 (forward-comment -2)
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157 (Assert (eq (point) (point-min)))
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158
973
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159 (let ((point (point)))
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160 (insert "/* comment */")
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161 (goto-char point)
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162 (forward-comment 2)
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163 (Assert (eq (point) (point-max)))
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164
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165 ;; this last used to crash
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166 (parse-partial-sexp point (point-max)))))
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167
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168 ;; Test backward-up-list
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169 ;; Known-Bug: report = Evgeny Zacjev ca 2005-12-01, confirm = Aidan Kehoe
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170
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171 (with-temp-buffer
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172 ;; We are now using the standard syntax table. Thus there's no need to
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173 ;; worry about a bogus syntax setting, eg, in a Gnus Article buffer the
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174 ;; bug doesn't manifest.
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175
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176 ;; value of point to the immediate left of this character
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177 ;; 0 1 2
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178 ;; 1234 56789 012 34567 890 12 3456 7
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179 (insert "a ( \"b (c\" (\"defg\") \")\") h\n")
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180
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181 ;; #### This test should check *every* position.
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182 (labels ((backward-up-list-moves-point-from-to (start expected-end)
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183 (goto-char start)
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184 (backward-up-list 1)
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185 (= (point) expected-end)))
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186 (Known-Bug-Expect-Failure
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187 ;; Evgeny's case
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188 (Assert (backward-up-list-moves-point-from-to 16 12)))
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189 (Assert (backward-up-list-moves-point-from-to 19 12))
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190 (Assert (backward-up-list-moves-point-from-to 20 3))
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191 (Known-Bug-Expect-Failure
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192 (Assert (backward-up-list-moves-point-from-to 22 3)))
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193 (Known-Bug-Expect-Error scan-error
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194 (Assert (backward-up-list-moves-point-from-to 23 3))
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195 )
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196 (Assert (backward-up-list-moves-point-from-to 24 3))
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197 ;; This is maybe a little tricky, since we don't expect the position
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198 ;; check to happen -- so use an illegal expected position
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199 ;; I don't think there's any other way for this to fail that way,
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200 ;; barring hardware error....
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201 (Check-Error-Message syntax-error
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202 "Unbalanced parentheses"
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203 (backward-up-list-moves-point-from-to 25 nil))
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204 ;; special-case check that point didn't move
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205 (Assert (= (point) 25))))
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206
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207 ;; Test inspired by Alan Mackenzie in <20110806200042.GA3406@acm.acm>
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208 ;; on xemacs-beta 2011-08-06.
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209 ;; Known to fail in r5531 (#1b054bc2ac40) plus some additional patches to
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210 ;; syntax code, and passes with Alan's suggested patch ca. r5545.
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211 ;; #### The results of these tests are empirically determined, and will
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212 ;; probably change as the syntax cache is documented and repaired.
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213 (with-temp-buffer
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214 ;; buffer->syntax_cache in just-initialized state.
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215 (let ((sci (syntax-cache-info)))
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216 (Assert (= 1 (nth 0 sci)) nil "just initialized")
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217 (Assert (= 1 (nth 1 sci)) nil "just initialized")
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218 (Assert (= -1 (nth 2 sci)) nil "just initialized")
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219 (Assert (= -1 (nth 3 sci)) nil "just initialized"))
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220 ;; Alan's example uses ?/ not ?, but ?/ has Ssymbol syntax, which would
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221 ;; mean it is treated the same as the letters by forward-sexp.
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222 (insert ",regexp, {")
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223 ;; Insertion updates markers, but not the cache boundaries.
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224 (let ((sci (syntax-cache-info)))
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225 (Assert (= 1 (nth 0 sci)) nil "after main insert")
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226 (Assert (= 11 (nth 1 sci)) nil "after main insert")
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227 (Assert (= -1 (nth 2 sci)) nil "after main insert")
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228 (Assert (= -1 (nth 3 sci)) nil "after main insert"))
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229 ;; #### Interactively inserting in fundamental mode swaps marker positions!
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230 ;; Why?
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231 (insert "}")
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232 (let ((sci (syntax-cache-info)))
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233 (Assert (= 1 (nth 0 sci)) nil "after brace insert")
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234 (Assert (= 12 (nth 1 sci)) nil "after brace insert")
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235 (Assert (= -1 (nth 2 sci)) nil "after brace insert")
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236 (Assert (= -1 (nth 3 sci)) nil "after brace insert"))
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237 ;; Motion that ignores the cache should not update the cache.
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238 (goto-char (point-min))
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239 (let ((sci (syntax-cache-info)))
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240 (Assert (= 1 (nth 0 sci)) nil "after movement 0")
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241 (Assert (= 12 (nth 1 sci)) nil "after movement 0")
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242 (Assert (= -1 (nth 2 sci)) nil "after movement 0")
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243 (Assert (= -1 (nth 3 sci)) nil "after movement 0"))
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244 ;; Cache should be updated and global since no syntax-table property.
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245 (forward-sexp 1)
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246 (Assert (= (point) 8) nil "after 1st forward-sexp")
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247 (let ((sci (syntax-cache-info)))
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248 (Assert (= 1 (nth 0 sci)) nil "after 1st forward-sexp")
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249 (Assert (= 12 (nth 1 sci)) nil "after 1st forward-sexp")
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250 (Assert (= 1 (nth 2 sci)) nil "after 1st forward-sexp")
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251 (Assert (= 12 (nth 3 sci)) nil "after 1st forward-sexp"))
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252 ;; Adding the text property should invalidate the cache.
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253 (put-text-property 1 2 'syntax-table '(7))
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254 (let ((sci (syntax-cache-info)))
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255 (Assert (= 1 (nth 0 sci)) nil "after putting property")
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256 (Assert (= 1 (nth 1 sci)) nil "after putting property")
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257 (Assert (= -1 (nth 2 sci)) nil "after putting property")
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258 (Assert (= -1 (nth 3 sci)) nil "after putting property"))
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259 (put-text-property 8 9 'syntax-table '(7))
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260 (goto-char (point-min))
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261 ;; Motion that is stopped by a syntax-table property should impose
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262 ;; that property's region on the cache.
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263 (forward-sexp 1)
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264 (Assert (= (point) 9) nil "after 2d forward-sexp")
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265 (let ((sci (syntax-cache-info)))
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266 (Assert (= 8 (nth 0 sci)) nil "after 2d forward-sexp")
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267 (Assert (= 9 (nth 1 sci)) nil "after 2d forward-sexp")
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268 (Assert (= 8 (nth 2 sci)) nil "after 2d forward-sexp")
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269 (Assert (= 9 (nth 3 sci)) nil "after 2d forward-sexp"))
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270 ;; Narrowing warps point but does not affect the cache.
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271 (narrow-to-region 10 12)
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272 (Assert (= 10 (point)) nil "after narrowing")
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273 (let ((sci (syntax-cache-info)))
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274 (Assert (= 8 (nth 0 sci)) nil "after narrowing")
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275 (Assert (= 9 (nth 1 sci)) nil "after narrowing")
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276 (Assert (= 8 (nth 2 sci)) nil "after narrowing")
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277 (Assert (= 9 (nth 3 sci)) nil "after narrowing"))
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278 ;; Motion that is stopped by buffer's syntax table should capture
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279 ;; the largest region known to not contain a change of syntax-table
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280 ;; property.
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281 (forward-sexp 1)
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282 (let ((sci (syntax-cache-info)))
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283 (Assert (= 10 (nth 0 sci)) nil "after 3d forward-sexp")
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284 (Assert (= 12 (nth 1 sci)) nil "after 3d forward-sexp")
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parents: 5543
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285 (Assert (= 10 (nth 2 sci)) nil "after 3d forward-sexp")
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parents: 5543
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286 (Assert (= 12 (nth 3 sci)) nil "after 3d forward-sexp"))
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parents: 5543
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287 (widen)
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parents: 5543
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288 (goto-char (point-min))
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289 ;; Check that we still respect the syntax table properties.
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290 (forward-sexp 1)
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291 (Assert (= 9 (point)) nil "after widening"))
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292
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fbe90e6f7a43 Initialize start and end properly (to new markers, not Qnil).
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293 ;; #### Add the recipe in <yxzfymklb6p.fsf@gimli.holgi.priv> on xemacs-beta.
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294 ;; You also need to do a DELETE or type SPC to get the crash in 21.5.24.
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295 ;http://list-archive.xemacs.org/pipermail/xemacs-beta/2006-February/008430.html
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296
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eed303fac325 Should tests for substitute-in-file-name be in syntax-tests?
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297 ;;; end of syntax-tests.el