forked from aniani/vim
1ef9bbe215
Problem: The new regexp engine does not give an error for using a back
reference where it is not allowed. (Dominique Pelle)
Solution: Check the back reference like the old engine. (closes #1774)
75 lines
2.0 KiB
VimL
75 lines
2.0 KiB
VimL
" Tests for regexp in latin1 encoding
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set encoding=latin1
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scriptencoding latin1
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func s:equivalence_test()
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let str = "AÀÁÂÃÄÅ B C D EÈÉÊË F G H IÌÍÎÏ J K L M NÑ OÒÓÔÕÖØ P Q R S T UÙÚÛÜ V W X YÝ Z aàáâãäå b c d eèéêë f g h iìíîï j k l m nñ oòóôõöø p q r s t uùúûü v w x yýÿ z"
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let groups = split(str)
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for group1 in groups
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for c in split(group1, '\zs')
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" next statement confirms that equivalence class matches every
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" character in group
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call assert_match('^[[=' . c . '=]]*$', group1)
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for group2 in groups
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if group2 != group1
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" next statement converts that equivalence class doesn't match
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" a character in any other group
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call assert_equal(-1, match(group2, '[[=' . c . '=]]'))
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endif
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endfor
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endfor
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endfor
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endfunc
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func Test_equivalence_re1()
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set re=1
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call s:equivalence_test()
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endfunc
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func Test_equivalence_re2()
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set re=2
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call s:equivalence_test()
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endfunc
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func Test_recursive_substitute()
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new
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s/^/\=execute("s#^##gn")
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" check we are now not in the sandbox
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call setwinvar(1, 'myvar', 1)
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bwipe!
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endfunc
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func Test_nested_backrefs()
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" Check example in change.txt.
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new
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for re in range(0, 2)
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exe 'set re=' . re
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call setline(1, 'aa ab x')
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1s/\(\(a[a-d] \)*\)\(x\)/-\1- -\2- -\3-/
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call assert_equal('-aa ab - -ab - -x-', getline(1))
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call assert_equal('-aa ab - -ab - -x-', substitute('aa ab x', '\(\(a[a-d] \)*\)\(x\)', '-\1- -\2- -\3-', ''))
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endfor
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bwipe!
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set re=0
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endfunc
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func Test_eow_with_optional()
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let expected = ['abc def', 'abc', 'def', '', '', '', '', '', '', '']
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for re in range(0, 2)
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exe 'set re=' . re
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let actual = matchlist('abc def', '\(abc\>\)\?\s*\(def\)')
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call assert_equal(expected, actual)
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endfor
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endfunc
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func Test_backref()
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new
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call setline(1, ['one', 'two', 'three', 'four', 'five'])
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call assert_equal(3, search('\%#=1\(e\)\1'))
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call assert_equal(3, search('\%#=2\(e\)\1'))
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call assert_fails('call search("\\%#=1\\(e\\1\\)")', 'E65:')
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call assert_fails('call search("\\%#=2\\(e\\1\\)")', 'E65:')
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bwipe!
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endfunc
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