diff options
Diffstat (limited to '')
| -rw-r--r-- | src/testdir/test_syntax.vim | 923 |
1 files changed, 923 insertions, 0 deletions
diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim new file mode 100644 index 0000000..1a413f6 --- /dev/null +++ b/src/testdir/test_syntax.vim @@ -0,0 +1,923 @@ +" Test for syntax and syntax iskeyword option + +source check.vim +CheckFeature syntax + +source view_util.vim +source screendump.vim + +func GetSyntaxItem(pat) + let c = '' + let a = ['a', getreg('a'), getregtype('a')] + 0 + redraw! + call search(a:pat, 'W') + let synid = synID(line('.'), col('.'), 1) + while synid == synID(line('.'), col('.'), 1) + norm! v"ay + " stop at whitespace + if @a =~# '\s' + break + endif + let c .= @a + norm! l + endw + call call('setreg', a) + 0 + return c +endfunc + +func AssertHighlightGroups(lnum, startcol, expected, trans = 1, msg = "") + " Assert that the characters starting at a given (line, col) + " sequentially match the expected highlight groups. + " If groups are provided as a string, each character is assumed to be a + " group and spaces represent no group, useful for visually describing tests. + let l:expectedGroups = type(a:expected) == v:t_string + \ ? a:expected->split('\zs')->map({_, v -> trim(v)}) + \ : a:expected + let l:errors = 0 + let l:msg = (a:msg->empty() ? "" : a:msg .. ": ") + \ .. "Wrong highlight group at " .. a:lnum .. "," + + for l:i in range(a:startcol, a:startcol + l:expectedGroups->len() - 1) + let l:errors += synID(a:lnum, l:i, a:trans) + \ ->synIDattr("name") + \ ->assert_equal(l:expectedGroups[l:i - 1], + \ l:msg .. l:i) + endfor +endfunc + +func Test_syn_iskeyword() + new + call setline(1, [ + \ 'CREATE TABLE FOOBAR(', + \ ' DLTD_BY VARCHAR2(100)', + \ ');', + \ '']) + + syntax on + set ft=sql + syn match SYN /C\k\+\>/ + hi link SYN ErrorMsg + call assert_equal('DLTD_BY', GetSyntaxItem('DLTD')) + /\<D\k\+\>/:norm! ygn + call assert_equal('DLTD_BY', @0) + redir @c + syn iskeyword + redir END + call assert_equal("\nsyntax iskeyword not set", @c) + + syn iskeyword @,48-57,_,192-255 + redir @c + syn iskeyword + redir END + call assert_equal("\nsyntax iskeyword @,48-57,_,192-255", @c) + + setlocal isk-=_ + call assert_equal('DLTD_BY', GetSyntaxItem('DLTD')) + /\<D\k\+\>/:norm! ygn + let b2 = @0 + call assert_equal('DLTD', @0) + + syn iskeyword clear + redir @c + syn iskeyword + redir END + call assert_equal("\nsyntax iskeyword not set", @c) + + quit! +endfunc + +func Test_syntax_after_reload() + split Xsomefile + call setline(1, ['hello', 'there']) + w! + only! + setl filetype=hello + au FileType hello let g:gotit = 1 + call assert_false(exists('g:gotit')) + edit other + buf Xsomefile + call assert_equal('hello', &filetype) + call assert_true(exists('g:gotit')) + call delete('Xsomefile') +endfunc + +func Test_syntime() + CheckFeature profile + + syntax on + syntime on + let a = execute('syntime report') + call assert_equal("\nNo Syntax items defined for this buffer", a) + + view ../memfile_test.c + setfiletype cpp + redraw + let a = execute('syntime report') + call assert_match('^ TOTAL *COUNT *MATCH *SLOWEST *AVERAGE *NAME *PATTERN', a) + call assert_match(' \d*\.\d* \+[^0]\d* .* cppRawString ', a) + call assert_match(' \d*\.\d* \+[^0]\d* .* cppNumber ', a) + + syntime off + syntime clear + let a = execute('syntime report') + call assert_match('^ TOTAL *COUNT *MATCH *SLOWEST *AVERAGE *NAME *PATTERN', a) + call assert_notmatch('.* cppRawString *', a) + call assert_notmatch('.* cppNumber*', a) + call assert_notmatch('[1-9]', a) + + call assert_fails('syntime abc', 'E475:') + + syntax clear + let a = execute('syntime report') + call assert_equal("\nNo Syntax items defined for this buffer", a) + + bd +endfunc + +func Test_syntime_completion() + CheckFeature profile + + call feedkeys(":syntime \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"syntime clear off on report', @:) +endfunc + +func Test_syntax_list() + syntax on + let a = execute('syntax list') + call assert_equal("\nNo Syntax items defined for this buffer", a) + + view ../memfile_test.c + setfiletype c + + let a = execute('syntax list') + call assert_match('cInclude*', a) + call assert_match('cDefine', a) + + let a = execute('syntax list cDefine') + call assert_notmatch('cInclude*', a) + call assert_match('cDefine', a) + call assert_match(' links to Macro$', a) + + call assert_fails('syntax list ABCD', 'E28:') + call assert_fails('syntax list @ABCD', 'E392:') + + syntax clear + let a = execute('syntax list') + call assert_equal("\nNo Syntax items defined for this buffer", a) + + syntax keyword Type int containedin=g1 skipwhite skipempty skipnl nextgroup=Abc + let exp = "Type xxx containedin=g1 nextgroup=Abc skipnl skipwhite skipempty int" + call assert_equal(exp, split(execute("syntax list"), "\n")[1]) + + bd +endfunc + +func Test_syntax_completion() + call feedkeys(":syn \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"syn case clear cluster conceal enable foldlevel include iskeyword keyword list manual match off on region reset spell sync', @:) + + call feedkeys(":syn case \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"syn case ignore match', @:) + + call feedkeys(":syn spell \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"syn spell default notoplevel toplevel', @:) + + call feedkeys(":syn sync \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"syn sync ccomment clear fromstart linebreaks= linecont lines= match maxlines= minlines= region', @:) + + " Check that clearing "Aap" avoids it showing up before Boolean. + hi Aap ctermfg=blue + call feedkeys(":syn list \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_match('^"syn list Aap Boolean Character ', @:) + hi clear Aap + + call feedkeys(":syn list \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_match('^"syn list Boolean Character ', @:) + + call feedkeys(":syn match \<C-A>\<C-B>\"\<CR>", 'tx') + call assert_match('^"syn match Boolean Character ', @:) +endfunc + +func Test_echohl_completion() + call feedkeys(":echohl no\<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"echohl NonText Normal none', @:) +endfunc + +func Test_syntax_arg_skipped() + syn clear + syntax case ignore + if 0 + syntax case match + endif + call assert_match('case ignore', execute('syntax case')) + + syn keyword Foo foo + call assert_match('Foo', execute('syntax')) + syn clear + call assert_match('case match', execute('syntax case')) + call assert_notmatch('Foo', execute('syntax')) + + if has('conceal') + syn clear + syntax conceal on + if 0 + syntax conceal off + endif + call assert_match('conceal on', execute('syntax conceal')) + syn clear + call assert_match('conceal off', execute('syntax conceal')) + + syntax conceal on + syntax conceal off + call assert_match('conceal off', execute('syntax conceal')) + endif + + syntax region Bar start=/</ end=/>/ + if 0 + syntax region NotTest start=/</ end=/>/ contains=@Spell + endif + call assert_match('Bar', execute('syntax')) + call assert_notmatch('NotTest', execute('syntax')) + call assert_notmatch('Spell', execute('syntax')) + + hi Foo ctermfg=blue + let a = execute('hi Foo') + if 0 + syntax rest + endif + call assert_equal(a, execute('hi Foo')) + hi clear Bar + hi clear Foo + + set ft=tags + syn off + if 0 + syntax enable + endif + call assert_match('No Syntax items defined', execute('syntax')) + syntax enable + call assert_match('tagComment', execute('syntax')) + set ft= + + syn clear + if 0 + syntax include @Spell nothing + endif + call assert_notmatch('Spell', execute('syntax')) + + syn clear + syn iskeyword 48-57,$,_ + call assert_match('48-57,$,_', execute('syntax iskeyword')) + if 0 + syn clear + syn iskeyword clear + endif + call assert_match('48-57,$,_', execute('syntax iskeyword')) + syn iskeyword clear + call assert_match('not set', execute('syntax iskeyword')) + syn iskeyword 48-57,$,_ + syn clear + call assert_match('not set', execute('syntax iskeyword')) + + syn clear + syn keyword Foo foo + if 0 + syn keyword NotAdded bar + endif + call assert_match('Foo', execute('syntax')) + call assert_notmatch('NotAdded', execute('highlight')) + + syn clear + syn keyword Foo foo + call assert_match('Foo', execute('syntax')) + call assert_match('Foo', execute('syntax list')) + call assert_notmatch('Foo', execute('if 0 | syntax | endif')) + call assert_notmatch('Foo', execute('if 0 | syntax list | endif')) + + syn clear + syn match Fopi /asdf/ + if 0 + syn match Fopx /asdf/ + endif + call assert_match('Fopi', execute('syntax')) + call assert_notmatch('Fopx', execute('syntax')) + + syn clear + syn spell toplevel + call assert_match('spell toplevel', execute('syntax spell')) + if 0 + syn spell notoplevel + endif + call assert_match('spell toplevel', execute('syntax spell')) + syn spell notoplevel + call assert_match('spell notoplevel', execute('syntax spell')) + syn spell default + call assert_match('spell default', execute('syntax spell')) + + syn clear + if 0 + syntax cluster Spell + endif + call assert_notmatch('Spell', execute('syntax')) + + syn clear + syn keyword Foo foo + syn sync ccomment + syn sync maxlines=5 + if 0 + syn sync maxlines=11 + endif + call assert_match('on C-style comments', execute('syntax sync')) + call assert_match('maximal 5 lines', execute('syntax sync')) + syn sync clear + if 0 + syn sync ccomment + endif + call assert_notmatch('on C-style comments', execute('syntax sync')) + syn sync fromstart + call assert_match('syncing starts at the first line', execute('syntax sync')) + + syn clear +endfunc + +" Check for an error. Used when multiple errors are thrown and we are checking +" for an earliest error. +func AssertFails(cmd, errcode) + let save_exception = '' + try + exe a:cmd + catch + let save_exception = v:exception + endtry + call assert_match(a:errcode, save_exception) +endfunc + +func Test_syntax_invalid_arg() + call assert_fails('syntax case asdf', 'E390:') + if has('conceal') + call assert_fails('syntax conceal asdf', 'E390:') + endif + call assert_fails('syntax spell asdf', 'E390:') + call assert_fails('syntax clear @ABCD', 'E391:') + call assert_fails('syntax include random_file', 'E484:') + call assert_fails('syntax include <afile>', 'E495:') + call assert_fails('syntax sync x', 'E404:') + call assert_fails('syntax keyword Abc a[', 'E789:') + call assert_fails('syntax keyword Abc a[bc]d', 'E890:') + call assert_fails('syntax cluster Abc add=A add=', 'E406:') + + " Test for too many \z\( and unmatched \z\( + " Not able to use assert_fails() here because both E50:/E879: and E475: + " messages are emitted. + set regexpengine=1 + call AssertFails("syntax region MyRegion start='\\z\\(' end='\\*/'", 'E52:') + + let cmd = "syntax region MyRegion start='" + let cmd ..= repeat("\\z\\(.\\)", 10) .. "' end='\*/'" + call AssertFails(cmd, 'E50:') + + set regexpengine=2 + call AssertFails("syntax region MyRegion start='\\z\\(' end='\\*/'", 'E54:') + + let cmd = "syntax region MyRegion start='" + let cmd ..= repeat("\\z\\(.\\)", 10) .. "' end='\*/'" + call AssertFails(cmd, 'E879:') + set regexpengine& + + call AssertFails('syntax keyword cMyItem grouphere G1', 'E393:') + call AssertFails('syntax sync match Abc grouphere MyItem "abc"', 'E394:') + call AssertFails('syn keyword Type contains int', 'E395:') + call assert_fails('syntax include @Xxx', 'E397:') + call AssertFails('syntax region X start', 'E398:') + call assert_fails('syntax region X start="{"', 'E399:') + call AssertFails('syntax cluster contains=Abc', 'E400:') + call AssertFails("syntax match Character /'.'", 'E401:') + call AssertFails("syntax match Character /'.'/a", 'E402:') + call assert_fails('syntax sync linecont /\%(/', 'E53:') + call assert_fails('syntax sync linecont /pat', 'E404:') + call assert_fails('syntax sync linecont', 'E404:') + call assert_fails('syntax sync linecont /pat1/ linecont /pat2/', 'E403:') + call assert_fails('syntax sync minlines=a', 'E404:') + call AssertFails('syntax match ABC /x/ contains=', 'E406:') + call AssertFails("syntax match Character contains /'.'/", 'E405:') + call AssertFails('syntax match ccFoo "Foo" nextgroup=ALLBUT,F', 'E407:') + call AssertFails('syntax region Block start="{" contains=F,ALLBUT', 'E408:') + call AssertFails("syntax match Characters contains=a.*x /'.'/", 'E409:') + call assert_fails('syntax match Search /abc/ contains=ALLBUT,/\%(/', 'E53:') +endfunc + +func Test_syn_sync() + syntax region HereGroup start=/this/ end=/that/ + syntax sync match SyncHere grouphere HereGroup "pattern" + call assert_match('SyncHere', execute('syntax sync')) + syn sync clear + call assert_notmatch('SyncHere', execute('syntax sync')) + syn clear +endfunc + +func Test_syn_clear() + syntax keyword Foo foo + syntax keyword Bar tar + call assert_match('Foo', execute('syntax')) + call assert_match('Bar', execute('syntax')) + call assert_equal('Foo', synIDattr(hlID("Foo"), "name")) + syn clear Foo + call assert_notmatch('Foo', execute('syntax')) + call assert_match('Bar', execute('syntax')) + call assert_equal('Foo', synIDattr(hlID("Foo"), "name")) + syn clear Foo Bar + call assert_notmatch('Foo', execute('syntax')) + call assert_notmatch('Bar', execute('syntax')) + hi clear Foo + call assert_equal('Foo', synIDattr(hlID("Foo"), "name")) + hi clear Bar + call assert_fails('syntax clear invalid_syngroup', 'E28:') +endfunc + +func Test_invalid_name() + syn clear + syn keyword Nop yes + call assert_fails("syntax keyword Wr\x17ong bar", 'E669:') + syntax keyword @Wrong bar + call assert_match('W18:', execute('1messages')) + syn clear + hi clear Nop + hi clear @Wrong +endfunc + +func Test_ownsyntax() + new Xfoo + call setline(1, '#define FOO') + syntax on + set filetype=c + + ownsyntax perl + " this should not crash + set + + call assert_equal('perlComment', synIDattr(synID(line('.'), col('.'), 1), 'name')) + call assert_equal('c', b:current_syntax) + call assert_equal('perl', w:current_syntax) + + " A new split window should have the original syntax. + split + call assert_equal('cDefine', synIDattr(synID(line('.'), col('.'), 1), 'name')) + call assert_equal('c', b:current_syntax) + call assert_equal(0, exists('w:current_syntax')) + + wincmd x + call assert_equal('perlComment', synIDattr(synID(line("."), col("."), 1), "name")) + + syntax off + set filetype& + %bw! +endfunc + +func Test_ownsyntax_completion() + call feedkeys(":ownsyntax java\<C-A>\<C-B>\"\<CR>", 'tx') + call assert_equal('"ownsyntax java javacc javascript javascriptreact', @:) +endfunc + +func Test_highlight_invalid_arg() + if has('gui_running') + call assert_fails('hi XXX guifg=xxx', 'E254:') + endif + call assert_fails('hi DoesNotExist', 'E411:') + call assert_fails('hi link', 'E412:') + call assert_fails('hi link a', 'E412:') + call assert_fails('hi link a b c', 'E413:') + call assert_fails('hi XXX =', 'E415:') + call assert_fails('hi XXX cterm', 'E416:') + call assert_fails('hi XXX cterm=', 'E417:') + call assert_fails('hi XXX cterm=DoesNotExist', 'E418:') + call assert_fails('hi XXX ctermfg=DoesNotExist', 'E421:') + call assert_fails('hi XXX xxx=White', 'E423:') +endfunc + +func Test_bg_detection() + CheckNotGui + + " auto-detection of &bg, make sure sure it isn't set anywhere before + " this test + hi Normal ctermbg=0 + call assert_equal('dark', &bg) + hi Normal ctermbg=4 + call assert_equal('dark', &bg) + hi Normal ctermbg=12 + call assert_equal('light', &bg) + hi Normal ctermbg=15 + call assert_equal('light', &bg) + + " manually-set &bg takes precedence over auto-detection + set bg=light + hi Normal ctermbg=4 + call assert_equal('light', &bg) + set bg=dark + hi Normal ctermbg=12 + call assert_equal('dark', &bg) + + hi Normal ctermbg=NONE +endfunc + +func Test_syntax_hangs() + CheckFunction reltimefloat + CheckFeature syntax + + " This pattern takes a long time to match, it should timeout. + new + call setline(1, ['aaa', repeat('abc ', 1000), 'ccc']) + let start = reltime() + set nolazyredraw redrawtime=101 + syn match Error /\%#=1a*.*X\@<=b*/ + redraw + let elapsed = reltimefloat(reltime(start)) + call assert_true(elapsed > 0.1) + call assert_true(elapsed < 1.0) + + " second time syntax HL is disabled + let start = reltime() + redraw + let elapsed = reltimefloat(reltime(start)) + call assert_true(elapsed < 0.1) + + " after CTRL-L the timeout flag is reset + let start = reltime() + exe "normal \<C-L>" + redraw + let elapsed = reltimefloat(reltime(start)) + call assert_true(elapsed > 0.1) + call assert_true(elapsed < 1.0) + + set redrawtime& + bwipe! +endfunc + +func Test_conceal() + CheckFeature conceal + + new + call setline(1, ['', '123456']) + syn match test23 "23" conceal cchar=X + syn match test45 "45" conceal + + set conceallevel=0 + call assert_equal('123456 ', ScreenLines(2, 7)[0]) + call assert_equal([[0, '', 0], [0, '', 0], [0, '', 0], [0, '', 0], [0, '', 0], [0, '', 0]], map(range(1, 6), 'synconcealed(2, v:val)')) + + set conceallevel=1 + call assert_equal('1X 6 ', ScreenLines(2, 7)[0]) + call assert_equal([[0, '', 0], [1, 'X', 1], [1, 'X', 1], [1, ' ', 2], [1, ' ', 2], [0, '', 0]], map(range(1, 6), 'synconcealed(2, v:val)')) + + set conceallevel=1 + set listchars=conceal:Y + call assert_equal([[0, '', 0], [1, 'X', 1], [1, 'X', 1], [1, 'Y', 2], [1, 'Y', 2], [0, '', 0]], map(range(1, 6), 'synconcealed(2, v:val)')) + call assert_equal('1XY6 ', ScreenLines(2, 7)[0]) + + set conceallevel=2 + call assert_match('1X6 ', ScreenLines(2, 7)[0]) + call assert_equal([[0, '', 0], [1, 'X', 1], [1, 'X', 1], [1, '', 2], [1, '', 2], [0, '', 0]], map(range(1, 6), 'synconcealed(2, v:val)')) + + set conceallevel=3 + call assert_match('16 ', ScreenLines(2, 7)[0]) + call assert_equal([[0, '', 0], [1, '', 1], [1, '', 1], [1, '', 2], [1, '', 2], [0, '', 0]], map(range(1, 6), 'synconcealed(2, v:val)')) + + call AssertFails("syntax match Entity '&' conceal cchar=\<Tab>", 'E844:') + + syn clear + set conceallevel& + bw! +endfunc + +func Test_synstack_synIDtrans() + new + setfiletype c + syntax on + call setline(1, ' /* A comment with a TODO */') + + call assert_equal([], synstack(1, 1)) + + norm f/ + eval synstack(line("."), col("."))->map('synIDattr(v:val, "name")')->assert_equal(['cComment', 'cCommentStart']) + eval synstack(line("."), col("."))->map('synIDattr(synIDtrans(v:val), "name")')->assert_equal(['Comment', 'Comment']) + + norm fA + call assert_equal(['cComment'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")')) + call assert_equal(['Comment'], map(synstack(line("."), col(".")), 'synIDattr(synIDtrans(v:val), "name")')) + + norm fT + call assert_equal(['cComment', 'cTodo'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")')) + call assert_equal(['Comment', 'Todo'], map(synstack(line("."), col(".")), 'synIDattr(synIDtrans(v:val), "name")')) + + call assert_fails("let n=synIDtrans([])", 'E745:') + + syn clear + bw! +endfunc + +" Check highlighting for a small piece of C code with a screen dump. +func Test_syntax_c() + CheckRunVimInTerminal + call writefile([ + \ '/* comment line at the top */', + \ 'int main(int argc, char **argv) { // another comment', + \ '#if 0', + \ ' int not_used;', + \ '#else', + \ ' int used;', + \ '#endif', + \ ' printf("Just an example piece of C code\n");', + \ ' return 0x0ff;', + \ '}', + \ "\t\t ", + \ ' static void', + \ 'myFunction(const double count, struct nothing, long there) {', + \ "\t// 123: nothing to endif here", + \ "\tfor (int i = 0; i < count; ++i) {", + \ "\t break;", + \ "\t}", + \ "\tNote: asdf", + \ '}', + \ ], 'Xtest.c') + + " This makes the default for 'background' use "dark", check that the + " response to t_RB corrects it to "light". + let $COLORFGBG = '15;0' + + let buf = RunVimInTerminal('Xtest.c', {}) + call term_sendkeys(buf, ":syn keyword Search Note\r") + call term_sendkeys(buf, ":syn match Error /^\\s\\+$/\r") + call term_sendkeys(buf, ":set hlsearch\r") + call term_sendkeys(buf, "/endif\r") + call term_sendkeys(buf, "vjfC") + call VerifyScreenDump(buf, 'Test_syntax_c_01', {}) + + call term_sendkeys(buf, "\<Esc>") + call StopVimInTerminal(buf) + + let $COLORFGBG = '' + call delete('Xtest.c') +endfun + +" Using \z() in a region with NFA failing should not crash. +func Test_syn_wrong_z_one() + new + call setline(1, ['just some text', 'with foo and bar to match with']) + syn region FooBar start="foo\z(.*\)bar" end="\z1" + call test_override("nfa_fail", 1) + redraw! + redraw! + call test_override("ALL", 0) + bwipe! +endfunc + +func Test_syntax_after_bufdo() + call writefile(['/* aaa comment */'], 'Xaaa.c') + call writefile(['/* bbb comment */'], 'Xbbb.c') + call writefile(['/* ccc comment */'], 'Xccc.c') + call writefile(['/* ddd comment */'], 'Xddd.c') + + let bnr = bufnr('%') + new Xaaa.c + badd Xbbb.c + badd Xccc.c + badd Xddd.c + exe "bwipe " . bnr + let l = [] + bufdo call add(l, bufnr('%')) + call assert_equal(4, len(l)) + + syntax on + + " This used to only enable syntax HL in the last buffer. + bufdo tab split + tabrewind + for tab in range(1, 4) + norm fm + call assert_equal(['cComment'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")')) + tabnext + endfor + + bwipe! Xaaa.c + bwipe! Xbbb.c + bwipe! Xccc.c + bwipe! Xddd.c + syntax off + call delete('Xaaa.c') + call delete('Xbbb.c') + call delete('Xccc.c') + call delete('Xddd.c') +endfunc + +func Test_syntax_foldlevel() + new + call setline(1, [ + \ 'void f(int a)', + \ '{', + \ ' if (a == 1) {', + \ ' a = 0;', + \ ' } else if (a == 2) {', + \ ' a = 1;', + \ ' } else {', + \ ' a = 2;', + \ ' }', + \ ' if (a > 0) {', + \ ' if (a == 1) {', + \ ' a = 0;', + \ ' } /* missing newline */ } /* end of outer if */ else {', + \ ' a = 1;', + \ ' }', + \ ' if (a == 1)', + \ ' {', + \ ' a = 0;', + \ ' }', + \ ' else if (a == 2)', + \ ' {', + \ ' a = 1;', + \ ' }', + \ ' else', + \ ' {', + \ ' a = 2;', + \ ' }', + \ '}', + \ ]) + setfiletype c + syntax on + set foldmethod=syntax + + call assert_fails('syn foldlevel start start', 'E390:') + call assert_fails('syn foldlevel not_an_option', 'E390:') + + set foldlevel=1 + + syn foldlevel start + redir @c + syn foldlevel + redir END + call assert_equal("\nsyntax foldlevel start", @c) + syn sync fromstart + call assert_match('from the first line$', execute('syn sync')) + let a = map(range(3,9), 'foldclosed(v:val)') + call assert_equal([3,3,3,3,3,3,3], a) " attached cascade folds together + let a = map(range(10,15), 'foldclosed(v:val)') + call assert_equal([10,10,10,10,10,10], a) " over-attached 'else' hidden + let a = map(range(16,27), 'foldclosed(v:val)') + let unattached_results = [-1,17,17,17,-1,21,21,21,-1,25,25,25] + call assert_equal(unattached_results, a) " unattached cascade folds separately + + syn foldlevel minimum + redir @c + syn foldlevel + redir END + call assert_equal("\nsyntax foldlevel minimum", @c) + syn sync fromstart + let a = map(range(3,9), 'foldclosed(v:val)') + call assert_equal([3,3,5,5,7,7,7], a) " attached cascade folds separately + let a = map(range(10,15), 'foldclosed(v:val)') + call assert_equal([10,10,10,13,13,13], a) " over-attached 'else' visible + let a = map(range(16,27), 'foldclosed(v:val)') + call assert_equal(unattached_results, a) " unattached cascade folds separately + + set foldlevel=2 + + syn foldlevel start + syn sync fromstart + let a = map(range(11,14), 'foldclosed(v:val)') + call assert_equal([11,11,11,-1], a) " over-attached 'else' hidden + + syn foldlevel minimum + syn sync fromstart + let a = map(range(11,14), 'foldclosed(v:val)') + call assert_equal([11,11,-1,-1], a) " over-attached 'else' visible + + quit! +endfunc + +func Test_search_syntax_skip() + new + let lines =<< trim END + + /* This is VIM */ + Another Text for VIM + let a = "VIM" + END + call setline(1, lines) + syntax on + syntax match Comment "^/\*.*\*/" + syntax match String '".*"' + + " Skip argument using string evaluation. + 1 + call search('VIM', 'w', '', 0, 'synIDattr(synID(line("."), col("."), 1), "name") =~? "comment"') + call assert_equal('Another Text for VIM', getline('.')) + 1 + call search('VIM', 'w', '', 0, 'synIDattr(synID(line("."), col("."), 1), "name") !~? "string"') + call assert_equal(' let a = "VIM"', getline('.')) + + " Skip argument using Lambda. + 1 + call search('VIM', 'w', '', 0, { -> synIDattr(synID(line("."), col("."), 1), "name") =~? "comment"}) + call assert_equal('Another Text for VIM', getline('.')) + + 1 + call search('VIM', 'w', '', 0, { -> synIDattr(synID(line("."), col("."), 1), "name") !~? "string"}) + call assert_equal(' let a = "VIM"', getline('.')) + + " Skip argument using funcref. + func InComment() + return synIDattr(synID(line("."), col("."), 1), "name") =~? "comment" + endfunc + func InString() + return synIDattr(synID(line("."), col("."), 1), "name") !~? "string" + endfunc + 1 + call search('VIM', 'w', '', 0, function('InComment')) + call assert_equal('Another Text for VIM', getline('.')) + + 1 + call search('VIM', 'w', '', 0, function('InString')) + call assert_equal(' let a = "VIM"', getline('.')) + + delfunc InComment + delfunc InString + bwipe! +endfunc + +func Test_syn_contained_transparent() + " Comments starting with "Regression:" show the result when the highlighting + " span of the containing item is assigned to the contained region. + syntax on + + let l:case = "Transparent region contained in region" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax region Y start=/(/ end=/)/ contains=X + + call setline(1, "==(--[~~]--)==") + let l:expected = " YYYYYYYYYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! + + let l:case = "Transparent region extends region" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax region Y start=/(/ end=/)/ end=/e/ contains=X + + call setline(1, "==(--[~~e~~]--)==") + let l:expected = " YYYYYYYYYYYYY " + " Regression: " YYYYYYY YYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! + + let l:case = "Nested transparent regions extend region" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax region Y start=/(/ end=/)/ end=/e/ contains=X + + call setline(1, "==(--[~~e~~[~~e~~]~~e~~]--)==") + let l:expected = " YYYYYYYYYYYYYYYYYYYYYYYYY " + " Regression: " YYYYYYY YYYYYYYYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! + + let l:case = "Transparent region contained in match" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax match Y /(.\{-})/ contains=X + + call setline(1, "==(--[~~]--)==") + let l:expected = " YYYYYYYYYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! + + let l:case = "Transparent region extends match" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax match Y /(.\{-}[e)]/ contains=X + + call setline(1, "==(--[~~e~~]--)==") + let l:expected = " YYYYYYYYYY " + " Regression: " YYYYYYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! + + let l:case = "Nested transparent regions extend match" + new + syntax region X start=/\[/ end=/\]/ contained transparent + syntax match Y /(.\{-}[e)]/ contains=X + + call setline(1, "==(--[~~e~~[~~e~~]~~e~~]--)==") + let l:expected = " YYYYYYYYYYYYYYYYYYYYYY " + " Regression: " YYYYYYY YYYYYY " + eval AssertHighlightGroups(1, 1, l:expected, 1, l:case) + syntax clear Y X + bw! +endfunc + +" vim: shiftwidth=2 sts=2 expandtab |