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-rw-r--r--src/testdir/test_regexp_utf8.vim561
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diff --git a/src/testdir/test_regexp_utf8.vim b/src/testdir/test_regexp_utf8.vim
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+" Tests for regexp in utf8 encoding
+
+func s:equivalence_test()
+ let str = "AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐẔ aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑẕ"
+ let groups = split(str)
+ for group1 in groups
+ for c in split(group1, '\zs')
+ " next statement confirms that equivalence class matches every
+ " character in group
+ call assert_match('^[[=' . c . '=]]*$', group1)
+ for group2 in groups
+ if group2 != group1
+ " next statement converts that equivalence class doesn't match
+ " character in any other group
+ call assert_equal(-1, match(group2, '[[=' . c . '=]]'))
+ endif
+ endfor
+ endfor
+ endfor
+endfunc
+
+func Test_equivalence_re1()
+ set re=1
+ call s:equivalence_test()
+ set re=0
+endfunc
+
+func Test_equivalence_re2()
+ set re=2
+ call s:equivalence_test()
+ set re=0
+endfunc
+
+func s:classes_test()
+ if has('win32')
+ set iskeyword=@,48-57,_,192-255
+ endif
+ set isprint=@,161-255
+ call assert_equal('Motörhead', matchstr('Motörhead', '[[:print:]]\+'))
+
+ let alnumchars = ''
+ let alphachars = ''
+ let backspacechar = ''
+ let blankchars = ''
+ let cntrlchars = ''
+ let digitchars = ''
+ let escapechar = ''
+ let graphchars = ''
+ let lowerchars = ''
+ let printchars = ''
+ let punctchars = ''
+ let returnchar = ''
+ let spacechars = ''
+ let tabchar = ''
+ let upperchars = ''
+ let xdigitchars = ''
+ let identchars = ''
+ let identchars1 = ''
+ let kwordchars = ''
+ let kwordchars1 = ''
+ let fnamechars = ''
+ let fnamechars1 = ''
+ let i = 1
+ while i <= 255
+ let c = nr2char(i)
+ if c =~ '[[:alpha:]]'
+ let alphachars .= c
+ endif
+ if c =~ '[[:alnum:]]'
+ let alnumchars .= c
+ endif
+ if c =~ '[[:backspace:]]'
+ let backspacechar .= c
+ endif
+ if c =~ '[[:blank:]]'
+ let blankchars .= c
+ endif
+ if c =~ '[[:cntrl:]]'
+ let cntrlchars .= c
+ endif
+ if c =~ '[[:digit:]]'
+ let digitchars .= c
+ endif
+ if c =~ '[[:escape:]]'
+ let escapechar .= c
+ endif
+ if c =~ '[[:graph:]]'
+ let graphchars .= c
+ endif
+ if c =~ '[[:lower:]]'
+ let lowerchars .= c
+ endif
+ if c =~ '[[:print:]]'
+ let printchars .= c
+ endif
+ if c =~ '[[:punct:]]'
+ let punctchars .= c
+ endif
+ if c =~ '[[:return:]]'
+ let returnchar .= c
+ endif
+ if c =~ '[[:space:]]'
+ let spacechars .= c
+ endif
+ if c =~ '[[:tab:]]'
+ let tabchar .= c
+ endif
+ if c =~ '[[:upper:]]'
+ let upperchars .= c
+ endif
+ if c =~ '[[:xdigit:]]'
+ let xdigitchars .= c
+ endif
+ if c =~ '[[:ident:]]'
+ let identchars .= c
+ endif
+ if c =~ '\i'
+ let identchars1 .= c
+ endif
+ if c =~ '[[:keyword:]]'
+ let kwordchars .= c
+ endif
+ if c =~ '\k'
+ let kwordchars1 .= c
+ endif
+ if c =~ '[[:fname:]]'
+ let fnamechars .= c
+ endif
+ if c =~ '\f'
+ let fnamechars1 .= c
+ endif
+ let i += 1
+ endwhile
+
+ call assert_equal('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', alphachars)
+ call assert_equal('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', alnumchars)
+ call assert_equal("\b", backspacechar)
+ call assert_equal("\t ", blankchars)
+ call assert_equal("\x01\x02\x03\x04\x05\x06\x07\b\t\n\x0b\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\e\x1c\x1d\x1e\x1f\x7f", cntrlchars)
+ call assert_equal("0123456789", digitchars)
+ call assert_equal("\<Esc>", escapechar)
+ call assert_equal('!"#$%&''()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~', graphchars)
+ call assert_equal('abcdefghijklmnopqrstuvwxyzµßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ', lowerchars)
+ call assert_equal(' !"#$%&''()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ', printchars)
+ call assert_equal('!"#$%&''()*+,-./:;<=>?@[\]^_`{|}~', punctchars)
+ call assert_equal('ABCDEFGHIJKLMNOPQRSTUVWXYZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ', upperchars)
+ call assert_equal("\r", returnchar)
+ call assert_equal("\t\n\x0b\f\r ", spacechars)
+ call assert_equal("\t", tabchar)
+ call assert_equal('0123456789ABCDEFabcdef', xdigitchars)
+
+ if has('win32')
+ let identchars_ok = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§µÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ'
+ let kwordchars_ok = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyzµÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ elseif has('ebcdic')
+ let identchars_ok = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz€ŒŽœž¬®µº¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ let kwordchars_ok = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz€ŒŽœž¬®µº¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ else
+ let identchars_ok = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyzµÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ let kwordchars_ok = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyzµÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ endif
+
+ if has('win32')
+ let fnamechars_ok = '!#$%+,-./0123456789:=@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]_abcdefghijklmnopqrstuvwxyz{}~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ elseif has('amiga')
+ let fnamechars_ok = '$+,-./0123456789:ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ elseif has('vms')
+ let fnamechars_ok = '#$%+,-./0123456789:;<>ABCDEFGHIJKLMNOPQRSTUVWXYZ[]_abcdefghijklmnopqrstuvwxyz~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ elseif has('ebcdic')
+ let fnamechars_ok = '#$%+,-./=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ else
+ let fnamechars_ok = '#$%+,-./0123456789=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ'
+ endif
+
+ call assert_equal(identchars_ok, identchars)
+ call assert_equal(kwordchars_ok, kwordchars)
+ call assert_equal(fnamechars_ok, fnamechars)
+
+ call assert_equal(identchars1, identchars)
+ call assert_equal(kwordchars1, kwordchars)
+ call assert_equal(fnamechars1, fnamechars)
+endfunc
+
+func Test_classes_re1()
+ set re=1
+ call s:classes_test()
+ set re=0
+endfunc
+
+func Test_classes_re2()
+ set re=2
+ call s:classes_test()
+ set re=0
+endfunc
+
+func Test_reversed_range()
+ for re in range(0, 2)
+ exe 'set re=' . re
+ call assert_fails('call match("abc def", "[c-a]")', 'E944:')
+ endfor
+ set re=0
+endfunc
+
+func Test_large_class()
+ set re=1
+ call assert_fails('call match("abc def", "[\u3000-\u4000]")', 'E945:')
+ set re=2
+ call assert_equal(0, 'abc def' =~# '[\u3000-\u4000]')
+ call assert_equal(1, "\u3042" =~# '[\u3000-\u4000]')
+ set re=0
+endfunc
+
+func Test_optmatch_toolong()
+ set re=1
+ " Can only handle about 8000 characters.
+ let pat = '\\%[' .. repeat('x', 9000) .. ']'
+ call assert_fails('call match("abc def", "' .. pat .. '")', 'E339:')
+ set re=0
+endfunc
+
+" Test for regexp patterns with multi-byte support, using utf-8.
+func Test_multibyte_chars()
+ " tl is a List of Lists with:
+ " 2: test auto/old/new 0: test auto/old 1: test auto/new
+ " regexp pattern
+ " text to test the pattern on
+ " expected match (optional)
+ " expected submatch 1 (optional)
+ " expected submatch 2 (optional)
+ " etc.
+ " When there is no match use only the first two items.
+ let tl = []
+
+ " Multi-byte character tests. These will fail unless vim is compiled
+ " with Multibyte (FEAT_MBYTE) or BIG/HUGE features.
+ call add(tl, [2, '[[:alpha:][=a=]]\+', '879 aiaãâaiuvna ', 'aiaãâaiuvna'])
+ call add(tl, [2, '[[=a=]]\+', 'ddaãâbcd', 'aãâ']) " equivalence classes
+ call add(tl, [2, '[^ม ]\+', 'มม oijasoifjos ifjoisj f osij j มมมมม abcd', 'oijasoifjos'])
+ call add(tl, [2, ' [^ ]\+', 'start มabcdม ', ' มabcdม'])
+ call add(tl, [2, '[ม[:alpha:][=a=]]\+', '879 aiaãมâมaiuvna ', 'aiaãมâมaiuvna'])
+
+ " this is not a normal "i" but 0xec
+ call add(tl, [2, '\p\+', 'ìa', 'ìa'])
+ call add(tl, [2, '\p*', 'aあ', 'aあ'])
+
+ " Test recognition of some character classes
+ call add(tl, [2, '\i\+', '&*¨xx ', 'xx'])
+ call add(tl, [2, '\f\+', '&*Ÿfname ', 'fname'])
+
+ " Test composing character matching
+ call add(tl, [2, '.ม', 'xม่x yมy', 'yม'])
+ call add(tl, [2, '.ม่', 'xม่x yมy', 'xม่'])
+ call add(tl, [2, "\u05b9", " x\u05b9 ", "x\u05b9"])
+ call add(tl, [2, ".\u05b9", " x\u05b9 ", "x\u05b9"])
+ call add(tl, [2, "\u05b9\u05bb", " x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, ".\u05b9\u05bb", " x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, "\u05bb\u05b9", " x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, ".\u05bb\u05b9", " x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, "\u05b9", " y\u05bb x\u05b9 ", "x\u05b9"])
+ call add(tl, [2, ".\u05b9", " y\u05bb x\u05b9 ", "x\u05b9"])
+ call add(tl, [2, "\u05b9", " y\u05bb\u05b9 x\u05b9 ", "y\u05bb\u05b9"])
+ call add(tl, [2, ".\u05b9", " y\u05bb\u05b9 x\u05b9 ", "y\u05bb\u05b9"])
+ call add(tl, [1, "\u05b9\u05bb", " y\u05b9 x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, ".\u05b9\u05bb", " y\u05bb x\u05b9\u05bb ", "x\u05b9\u05bb"])
+ call add(tl, [2, "a", "ca\u0300t"])
+ call add(tl, [2, "ca", "ca\u0300t"])
+ call add(tl, [2, "a\u0300", "ca\u0300t", "a\u0300"])
+ call add(tl, [2, 'a\%C', "ca\u0300t", "a\u0300"])
+ call add(tl, [2, 'ca\%C', "ca\u0300t", "ca\u0300"])
+ call add(tl, [2, 'ca\%Ct', "ca\u0300t", "ca\u0300t"])
+
+ " Test \Z
+ call add(tl, [2, 'ú\Z', 'x'])
+ call add(tl, [2, 'יהוה\Z', 'יהוה', 'יהוה'])
+ call add(tl, [2, 'יְהוָה\Z', 'יהוה', 'יהוה'])
+ call add(tl, [2, 'יהוה\Z', 'יְהוָה', 'יְהוָה'])
+ call add(tl, [2, 'יְהוָה\Z', 'יְהוָה', 'יְהוָה'])
+ call add(tl, [2, 'יְ\Z', 'וְיַ', 'יַ'])
+ call add(tl, [2, "ק\u200d\u05b9x\\Z", "xק\u200d\u05b9xy", "ק\u200d\u05b9x"])
+ call add(tl, [2, "ק\u200d\u05b9x\\Z", "xק\u200dxy", "ק\u200dx"])
+ call add(tl, [2, "ק\u200dx\\Z", "xק\u200d\u05b9xy", "ק\u200d\u05b9x"])
+ call add(tl, [2, "ק\u200dx\\Z", "xק\u200dxy", "ק\u200dx"])
+ call add(tl, [2, "\u05b9\\Z", "xyz"])
+ call add(tl, [2, "\\Z\u05b9", "xyz"])
+ call add(tl, [2, "\u05b9\\Z", "xy\u05b9z", "y\u05b9"])
+ call add(tl, [2, "\\Z\u05b9", "xy\u05b9z", "y\u05b9"])
+ call add(tl, [1, "\u05b9\\+\\Z", "xy\u05b9z\u05b9 ", "y\u05b9z\u05b9"])
+ call add(tl, [1, "\\Z\u05b9\\+", "xy\u05b9z\u05b9 ", "y\u05b9z\u05b9"])
+
+ " Combining different tests and features
+ call add(tl, [2, '[^[=a=]]\+', 'ddaãâbcd', 'dd'])
+
+ " Run the tests
+ for t in tl
+ let re = t[0]
+ let pat = t[1]
+ let text = t[2]
+ let matchidx = 3
+ for engine in [0, 1, 2]
+ if engine == 2 && re == 0 || engine == 1 && re == 1
+ continue
+ endif
+ let &regexpengine = engine
+ try
+ let l = matchlist(text, pat)
+ catch
+ call assert_report('Error ' . engine . ': pat: \"' . pat .
+ \ '\", text: \"' . text .
+ \ '\", caused an exception: \"' . v:exception . '\"')
+ endtry
+ " check the match itself
+ if len(l) == 0 && len(t) > matchidx
+ call assert_report('Error ' . engine . ': pat: \"' . pat .
+ \ '\", text: \"' . text .
+ \ '\", did not match, expected: \"' . t[matchidx] . '\"')
+ elseif len(l) > 0 && len(t) == matchidx
+ call assert_report('Error ' . engine . ': pat: \"' . pat .
+ \ '\", text: \"' . text . '\", match: \"' . l[0] .
+ \ '\", expected no match')
+ elseif len(t) > matchidx && l[0] != t[matchidx]
+ call assert_report('Error ' . engine . ': pat: \"' . pat .
+ \ '\", text: \"' . text . '\", match: \"' . l[0] .
+ \ '\", expected: \"' . t[matchidx] . '\"')
+ else
+ " Test passed
+ endif
+ if len(l) > 0
+ " check all the nine submatches
+ for i in range(1, 9)
+ if len(t) <= matchidx + i
+ let e = ''
+ else
+ let e = t[matchidx + i]
+ endif
+ if l[i] != e
+ call assert_report('Error ' . engine . ': pat: \"' . pat .
+ \ '\", text: \"' . text . '\", submatch ' . i .
+ \ ': \"' . l[i] . '\", expected: \"' . e . '\"')
+ endif
+ endfor
+ unlet i
+ endif
+ endfor
+ endfor
+ set regexpengine&
+endfunc
+
+" check that 'ambiwidth' does not change the meaning of \p
+func Test_ambiwidth()
+ set regexpengine=1 ambiwidth=single
+ call assert_equal(0, match("\u00EC", '\p'))
+ set regexpengine=1 ambiwidth=double
+ call assert_equal(0, match("\u00EC", '\p'))
+ set regexpengine=2 ambiwidth=single
+ call assert_equal(0, match("\u00EC", '\p'))
+ set regexpengine=2 ambiwidth=double
+ call assert_equal(0, match("\u00EC", '\p'))
+ set regexpengine& ambiwidth&
+endfunc
+
+func Run_regexp_ignore_case()
+ call assert_equal('iIİ', substitute('iIİ', '\([iIİ]\)', '\1', 'g'))
+
+ call assert_equal('iIx', substitute('iIİ', '\c\([İ]\)', 'x', 'g'))
+ call assert_equal('xxİ', substitute('iIİ', '\(i\c\)', 'x', 'g'))
+ call assert_equal('iIx', substitute('iIİ', '\(İ\c\)', 'x', 'g'))
+ call assert_equal('iIx', substitute('iIİ', '\c\(\%u0130\)', 'x', 'g'))
+ call assert_equal('iIx', substitute('iIİ', '\c\([\u0130]\)', 'x', 'g'))
+ call assert_equal('iIx', substitute('iIİ', '\c\([\u012f-\u0131]\)', 'x', 'g'))
+endfunc
+
+func Test_regexp_ignore_case()
+ set regexpengine=1
+ call Run_regexp_ignore_case()
+ set regexpengine=2
+ call Run_regexp_ignore_case()
+ set regexpengine&
+endfunc
+
+" Tests for regexp with multi-byte encoding and various magic settings
+func Run_regexp_multibyte_magic()
+ let text =<< trim END
+ 1 a aa abb abbccc
+ 2 d dd dee deefff
+ 3 g gg ghh ghhiii
+ 4 j jj jkk jkklll
+ 5 m mm mnn mnnooo
+ 6 x ^aa$ x
+ 7 (a)(b) abbaa
+ 8 axx [ab]xx
+ 9 หม่x อมx
+ a อมx หม่x
+ b ちカヨは
+ c x ¬€x
+ d 天使x
+ e y
+ f z
+ g a啷bb
+ j 0123❤x
+ k combinations
+ l äö üᾱ̆́
+ END
+
+ new
+ call setline(1, text)
+ exe 'normal /a*b\{2}c\+/e' .. "\<CR>x"
+ call assert_equal('1 a aa abb abbcc', getline('.'))
+ exe 'normal /\Md\*e\{2}f\+/e' .. "\<CR>x"
+ call assert_equal('2 d dd dee deeff', getline('.'))
+ set nomagic
+ exe 'normal /g\*h\{2}i\+/e' .. "\<CR>x"
+ call assert_equal('3 g gg ghh ghhii', getline('.'))
+ exe 'normal /\mj*k\{2}l\+/e' .. "\<CR>x"
+ call assert_equal('4 j jj jkk jkkll', getline('.'))
+ exe 'normal /\vm*n{2}o+/e' .. "\<CR>x"
+ call assert_equal('5 m mm mnn mnnoo', getline('.'))
+ exe 'normal /\V^aa$/' .. "\<CR>x"
+ call assert_equal('6 x aa$ x', getline('.'))
+ set magic
+ exe 'normal /\v(a)(b)\2\1\1/e' .. "\<CR>x"
+ call assert_equal('7 (a)(b) abba', getline('.'))
+ exe 'normal /\V[ab]\(\[xy]\)\1' .. "\<CR>x"
+ call assert_equal('8 axx ab]xx', getline('.'))
+
+ " search for multi-byte without composing char
+ exe 'normal /ม' .. "\<CR>x"
+ call assert_equal('9 หม่x อx', getline('.'))
+
+ " search for multi-byte with composing char
+ exe 'normal /ม่' .. "\<CR>x"
+ call assert_equal('a อมx หx', getline('.'))
+
+ " find word by change of word class
+ exe 'normal /ち\<カヨ\>は' .. "\<CR>x"
+ call assert_equal('b カヨは', getline('.'))
+
+ " Test \%u, [\u] and friends
+ " c
+ exe 'normal /\%u20ac' .. "\<CR>x"
+ call assert_equal('c x ¬x', getline('.'))
+ " d
+ exe 'normal /[\u4f7f\u5929]\+' .. "\<CR>x"
+ call assert_equal('d 使x', getline('.'))
+ " e
+ exe 'normal /\%U12345678' .. "\<CR>x"
+ call assert_equal('e y', getline('.'))
+ " f
+ exe 'normal /[\U1234abcd\u1234\uabcd]' .. "\<CR>x"
+ call assert_equal('f z', getline('.'))
+ " g
+ exe 'normal /\%d21879b' .. "\<CR>x"
+ call assert_equal('g abb', getline('.'))
+
+ " j Test backwards search from a multi-byte char
+ exe "normal /x\<CR>x?.\<CR>x"
+ call assert_equal('j 012❤', getline('.'))
+ " k
+ let @w=':%s#comb[i]nations#œ̄ṣ́m̥̄ᾱ̆́#g'
+ @w
+ call assert_equal('k œ̄ṣ́m̥̄ᾱ̆́', getline(18))
+
+ close!
+endfunc
+
+func Test_regexp_multibyte_magic()
+ set regexpengine=1
+ call Run_regexp_multibyte_magic()
+ set regexpengine=2
+ call Run_regexp_multibyte_magic()
+ set regexpengine&
+endfunc
+
+" Test for 7.3.192
+" command ":s/ \?/ /g" splits multi-byte characters into bytes
+func Test_split_multibyte_to_bytes()
+ new
+ call setline(1, 'l äö üᾱ̆́')
+ s/ \?/ /g
+ call assert_equal(' l ä ö ü ᾱ̆́', getline(1))
+ close!
+endfunc
+
+" Test for matchstr() with multibyte characters
+func Test_matchstr_multibyte()
+ new
+ call assert_equal('ב', matchstr("אבגד", ".", 0, 2))
+ call assert_equal('בג', matchstr("אבגד", "..", 0, 2))
+ call assert_equal('א', matchstr("אבגד", ".", 0, 0))
+ call assert_equal('ג', matchstr("אבגד", ".", 4, -1))
+ close!
+endfunc
+
+" Test for 7.4.636
+" A search with end offset gets stuck at end of file.
+func Test_search_with_end_offset()
+ new
+ call setline(1, ['', 'dog(a', 'cat('])
+ exe "normal /(/e+\<CR>"
+ normal n"ayn
+ call assert_equal("a\ncat(", @a)
+ close!
+endfunc
+
+" Check that "^" matches even when the line starts with a combining char
+func Test_match_start_of_line_combining()
+ new
+ call setline(1, ['', "\u05ae", ''])
+ exe "normal gg/^\<CR>"
+ call assert_equal(2, getcurpos()[1])
+ bwipe!
+endfunc
+
+" Check that [[:upper:]] matches for automatic engine
+func Test_match_char_class_upper()
+ new
+ let _engine=&regexpengine
+
+ " Test 1: [[:upper:]]\{2,\}
+ set regexpengine=0
+ call setline(1, ['05. ПЕСНЯ О ГЕРОЯХ муз. А. Давиденко, М. Коваля и Б. Шехтера ...', '05. PJESNJA O GJEROJAKH mus. A. Davidjenko, M. Kovalja i B. Shjekhtjera ...'])
+ call cursor(1,1)
+ let search_cmd='norm /\<[[:upper:]]\{2,\}\>' .. "\<CR>"
+ exe search_cmd
+ call assert_equal(4, searchcount().total, 'TEST 1')
+ set regexpengine=1
+ exe search_cmd
+ call assert_equal(2, searchcount().total, 'TEST 1')
+ set regexpengine=2
+ exe search_cmd
+ call assert_equal(4, searchcount().total, 'TEST 1')
+
+ " Test 2: [[:upper:]].\+
+ let search_cmd='norm /\<[[:upper:]].\+\>' .. "\<CR>"
+ set regexpengine=0
+ exe search_cmd
+ call assert_equal(2, searchcount().total, 'TEST 2')
+ set regexpengine=1
+ exe search_cmd
+ call assert_equal(1, searchcount().total, 'TEST 2')
+ set regexpengine=2
+ exe search_cmd
+ call assert_equal(2, searchcount().total, 'TEST 2')
+
+ " Test 3: [[:lower:]]\+
+ let search_cmd='norm /\<[[:lower:]]\+\>' .. "\<CR>"
+ set regexpengine=0
+ exe search_cmd
+ call assert_equal(4, searchcount().total, 'TEST 3 lower')
+ set regexpengine=1
+ exe search_cmd
+ call assert_equal(2, searchcount().total, 'TEST 3 lower')
+ set regexpengine=2
+ exe search_cmd
+ call assert_equal(4, searchcount().total, 'TEST 3 lower')
+
+ " clean up
+ let &regexpengine=_engine
+ bwipe!
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab