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runtime(java): Optionally highlight parameterised types
Commit: https://github.com/vim/vim/commit/beb02ed674bc61f179c4ff71e93bdeeb44fe9c4e
Author: Aliaksei Budavei <0x000c70@gmail.com>
Date: Thu Jun 20 21:00:53 2024 +0200
runtime(java): Optionally highlight parameterised types
In the presence of parameterised types whose names begin
with a capital letter and end with a less-than sign "<" that
introduces a type argument or a list of comma-separated type
arguments, followed by a greater-than sign ">", a variable
"g:java_highlight_generics" can be defined to have some
components of such types uniformly coloured (by picking
highlight groups for javaGenericsC{1,2}, javaWildcardBound).
For example,
------------------------------------------------------------
java.io.InputStream stream = java.io.InputStream.nullInputStream();
java.util.function.Function<String,
java.util.function.BiFunction<String, String, String>> updater =
property -> (oldValue, newValue) -> oldValue;
java.util.logging.LogManager.getLogManager()
.updateConfiguration(stream, updater);
------------------------------------------------------------
Note that the diamond form and explicit type arguments do
not qualify for this kind of recognition.
For example,
------------------------------------------------------------
new java.util.HashSet<>().<String>toArray(new String[0]);
------------------------------------------------------------
References:
https://docs.oracle.com/javase/specs/jls/se21/html/jls-4.html#jls-4.5
https://docs.oracle.com/javase/specs/jls/se21/html/jls-15.html#jls-15.9
https://docs.oracle.com/javase/specs/jls/se21/html/jls-15.html#jls-15.12.2.1
closes: #15050
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 20 Jun 2024 21:15:07 +0200 |
parents | 6a29a07451c7 |
children | ff0250ab0d8a |
line wrap: on
line source
" Vim syntax file " Language: Java " Maintainer: Aliaksei Budavei <0x000c70 AT gmail DOT com> " Former Maintainer: Claudio Fleiner <claudio@fleiner.com> " Repository: https://github.com/zzzyxwvut/java-vim.git " Last Change: 2024 Jun 19 " Please check :help java.vim for comments on some of the options available. " quit when a syntax file was already loaded if !exists("main_syntax") if exists("b:current_syntax") finish endif " we define it here so that included files can test for it let main_syntax='java' endif let s:cpo_save = &cpo set cpo&vim """" STRIVE TO REMAIN COMPATIBLE FOR AT LEAST VIM 7.0. let s:ff = {} function! s:ff.LeftConstant(x, y) abort return a:x endfunction function! s:ff.RightConstant(x, y) abort return a:y endfunction if !exists("*s:ReportOnce") function s:ReportOnce(message) abort echomsg 'syntax/java.vim: ' . a:message endfunction else function! s:ReportOnce(dummy) endfunction endif function! JavaSyntaxFoldTextExpr() abort return getline(v:foldstart) !~ '/\*\+\s*$' \ ? foldtext() \ : printf('+-%s%3d lines: ', \ v:folddashes, \ (v:foldend - v:foldstart + 1)) . \ getline(v:foldstart + 1) endfunction " E120 for "fdt=s:JavaSyntaxFoldTextExpr()" before v8.2.3900. setlocal foldtext=JavaSyntaxFoldTextExpr() " Admit the ASCII dollar sign to keyword characters (JLS-17, §3.8): try exec 'syntax iskeyword ' . &l:iskeyword . ',$' catch /\<E410:/ call s:ReportOnce(v:exception) setlocal iskeyword+=$ endtry " some characters that cannot be in a java program (outside a string) syn match javaError "[\\@`]" syn match javaError "<<<\|\.\.\|=>\|||=\|&&=\|\*\/" " use separate name so that it can be deleted in javacc.vim syn match javaError2 "#\|=<" hi def link javaError2 javaError " Keywords (JLS-17, §3.9): syn keyword javaExternal native package syn match javaExternal "\<import\>\%(\s\+static\>\)\=" syn keyword javaError goto const syn keyword javaConditional if else switch syn keyword javaRepeat while for do syn keyword javaBoolean true false syn keyword javaConstant null syn keyword javaTypedef this super syn keyword javaOperator new instanceof syn match javaOperator "\<var\>\%(\s*(\)\@!" " Since the yield statement, which could take a parenthesised operand, " and _qualified_ yield methods get along within the switch block " (JLS-17, §3.8), it seems futile to make a region definition for this " block; instead look for the _yield_ word alone, and if found, " backtrack (arbitrarily) 80 bytes, at most, on the matched line and, " if necessary, on the line before that (h: \@<=), trying to match " neither a method reference nor a qualified method invocation. try syn match javaOperator "\%(\%(::\|\.\)[[:space:]\n]*\)\@80<!\<yield\>" let s:ff.Peek = s:ff.LeftConstant catch /\<E59:/ call s:ReportOnce(v:exception) syn match javaOperator "\%(\%(::\|\.\)[[:space:]\n]*\)\@<!\<yield\>" let s:ff.Peek = s:ff.RightConstant endtry syn keyword javaType boolean char byte short int long float double syn keyword javaType void syn keyword javaStatement return syn keyword javaStorageClass static synchronized transient volatile strictfp serializable syn keyword javaExceptions throw try catch finally syn keyword javaAssert assert syn keyword javaMethodDecl throws " Differentiate a "MyClass.class" literal from the keyword "class". syn match javaTypedef "\.\s*\<class\>"ms=s+1 syn keyword javaClassDecl enum extends implements interface syn match javaClassDecl "\<permits\>\%(\s*(\)\@!" syn match javaClassDecl "\<record\>\%(\s*(\)\@!" syn match javaClassDecl "^class\>" syn match javaClassDecl "[^.]\s*\<class\>"ms=s+1 syn match javaAnnotation "@\%(\K\k*\.\)*\K\k*\>" syn region javaAnnotation transparent matchgroup=javaAnnotationStart start=/@\%(\K\k*\.\)*\K\k*(/ end=/)/ skip=/\/\*.\{-}\*\/\|\/\/.*$/ contains=javaAnnotation,javaParenT,javaBlock,javaString,javaBoolean,javaNumber,javaTypedef,javaComment,javaLineComment syn match javaClassDecl "@interface\>" syn keyword javaBranch break continue nextgroup=javaUserLabelRef skipwhite syn match javaUserLabelRef "\k\+" contained syn match javaVarArg "\.\.\." syn keyword javaScopeDecl public protected private syn keyword javaConceptKind abstract final syn match javaConceptKind "\<non-sealed\>" syn match javaConceptKind "\<sealed\>\%(\s*(\)\@!" syn match javaConceptKind "\<default\>\%(\s*\%(:\|->\)\)\@!" " Note that a "module-info" file will be recognised with an arbitrary " file extension (or no extension at all) so that more than one such " declaration for the same Java module can be maintained for modular " testing in a project without attendant confusion for IDEs, with the " ".java\=" extension used for a production version and an arbitrary " extension used for a testing version. let s:module_info_cur_buf = fnamemodify(bufname("%"), ":t") =~ '^module-info\%(\.class\>\)\@!' lockvar s:module_info_cur_buf if !(v:version < 704) " Request the new regexp engine for [:upper:] and [:lower:]. let [s:ff.Engine, s:ff.UpperCase, s:ff.LowerCase] = repeat([s:ff.LeftConstant], 3) else " XXX: \C\<[^a-z0-9]\k*\> rejects "type", but matches "τύπος". " XXX: \C\<[^A-Z0-9]\k*\> rejects "Method", but matches "Μέθοδος". let [s:ff.Engine, s:ff.UpperCase, s:ff.LowerCase] = repeat([s:ff.RightConstant], 3) endif " Java modules (since Java 9, for "module-info.java" file). if s:module_info_cur_buf syn keyword javaModuleStorageClass module transitive syn keyword javaModuleStmt open requires exports opens uses provides syn keyword javaModuleExternal to with endif " Fancy parameterised types (JLS-17, §4.5). " " Note that false positives may elsewhere occur whenever an identifier " is butted against a less-than operator. Cf. (X<Y) and (X < Y). if exists("java_highlight_generics") syn keyword javaWildcardBound contained extends super " Parameterised types are delegated to javaGenerics (s:ctx.gsg) and " are not matched with javaTypeArgument. exec 'syn match javaTypeArgument contained "' . s:ff.Engine('\%#=2', '') . '?\|\%(\<\%(b\%(oolean\|yte\)\|char\|short\|int\|long\|float\|double\)\[\]\|\%(\<\K\k*\>\.\)*\<' . s:ff.UpperCase('[$_[:upper:]]', '[^a-z0-9]') . '\k*\>\)\%(\[\]\)*"' for s:ctx in [{'dsg': 'javaDimExpr', 'gsg': 'javaGenerics', 'ghg': 'javaGenericsC1', 'csg': 'javaGenericsX', 'c': ''}, \ {'dsg': 'javaDimExprX', 'gsg': 'javaGenericsX', 'ghg': 'javaGenericsC2', 'csg': 'javaGenerics', 'c': ' contained'}] " Consider array creation expressions of reifiable types. exec 'syn region ' . s:ctx.dsg . ' contained transparent matchgroup=' . s:ctx.ghg . ' start="\[" end="\]" nextgroup=' . s:ctx.dsg . ' skipwhite skipnl' exec 'syn region ' . s:ctx.gsg . s:ctx.c . ' transparent matchgroup=' . s:ctx.ghg . ' start=/' . s:ff.Engine('\%#=2', '') . '\%(\<\K\k*\>\.\)*\<' . s:ff.UpperCase('[$_[:upper:]]', '[^a-z0-9]') . '\k*\><\%([[:space:]\n]*\%([?@]\|\<\%(b\%(oolean\|yte\)\|char\|short\|int\|long\|float\|double\)\[\]\|\%(\<\K\k*\>\.\)*\<' . s:ff.UpperCase('[$_[:upper:]]', '[^a-z0-9]') . '\k*\>\)\)\@=/ end=/>/ contains=' . s:ctx.csg . ',javaAnnotation,javaTypeArgument,javaWildcardBound,javaType,@javaClasses nextgroup=' . s:ctx.dsg . ' skipwhite skipnl' endfor unlet s:ctx hi def link javaWildcardBound Question hi def link javaGenericsC1 javaFuncDef hi def link javaGenericsC2 javaType endif if exists("java_highlight_java_lang_ids") let java_highlight_all=1 endif if exists("java_highlight_all") || exists("java_highlight_java") || exists("java_highlight_java_lang") " java.lang.* " " The keywords of javaR_JavaLang, javaC_JavaLang, javaE_JavaLang, " and javaX_JavaLang are sub-grouped according to the Java version " of their introduction, and sub-group keywords (that is, class " names) are arranged in alphabetical order, so that future newer " keywords can be pre-sorted and appended without disturbing " the current keyword placement. The below _match_es follow suit. syn keyword javaR_JavaLang ArithmeticException ArrayIndexOutOfBoundsException ArrayStoreException ClassCastException IllegalArgumentException IllegalMonitorStateException IllegalThreadStateException IndexOutOfBoundsException NegativeArraySizeException NullPointerException NumberFormatException RuntimeException SecurityException StringIndexOutOfBoundsException IllegalStateException UnsupportedOperationException EnumConstantNotPresentException TypeNotPresentException IllegalCallerException LayerInstantiationException WrongThreadException MatchException syn cluster javaClasses add=javaR_JavaLang hi def link javaR_JavaLang javaR_Java " Member enumerations: exec 'syn match javaC_JavaLang "\%(\<Thread\.\)\@' . s:ff.Peek('7', '') . '<=\<State\>"' exec 'syn match javaC_JavaLang "\%(\<Character\.\)\@' . s:ff.Peek('10', '') . '<=\<UnicodeScript\>"' exec 'syn match javaC_JavaLang "\%(\<ProcessBuilder\.Redirect\.\)\@' . s:ff.Peek('24', '') . '<=\<Type\>"' exec 'syn match javaC_JavaLang "\%(\<StackWalker\.\)\@' . s:ff.Peek('12', '') . '<=\<Option\>"' exec 'syn match javaC_JavaLang "\%(\<System\.Logger\.\)\@' . s:ff.Peek('14', '') . '<=\<Level\>"' " Member classes: exec 'syn match javaC_JavaLang "\%(\<Character\.\)\@' . s:ff.Peek('10', '') . '<=\<Subset\>"' exec 'syn match javaC_JavaLang "\%(\<Character\.\)\@' . s:ff.Peek('10', '') . '<=\<UnicodeBlock\>"' exec 'syn match javaC_JavaLang "\%(\<ProcessBuilder\.\)\@' . s:ff.Peek('15', '') . '<=\<Redirect\>"' exec 'syn match javaC_JavaLang "\%(\<ModuleLayer\.\)\@' . s:ff.Peek('12', '') . '<=\<Controller\>"' exec 'syn match javaC_JavaLang "\%(\<Runtime\.\)\@' . s:ff.Peek('8', '') . '<=\<Version\>"' exec 'syn match javaC_JavaLang "\%(\<System\.\)\@' . s:ff.Peek('7', '') . '<=\<LoggerFinder\>"' syn keyword javaC_JavaLang Boolean Character ClassLoader Compiler Double Float Integer Long Math Number Object Process Runtime SecurityManager String StringBuffer Thread ThreadGroup Byte Short Void Package RuntimePermission StrictMath StackTraceElement ProcessBuilder StringBuilder Module ModuleLayer StackWalker Record syn match javaC_JavaLang "\<System\>" " See javaDebug. if !exists("java_highlight_generics") " The non-interface parameterised names of java.lang members. exec 'syn match javaC_JavaLang "\%(\<Enum\.\)\@' . s:ff.Peek('5', '') . '<=\<EnumDesc\>"' syn keyword javaC_JavaLang Class InheritableThreadLocal ThreadLocal Enum ClassValue endif " As of JDK 21, java.lang.Compiler is no more (deprecated in JDK 9). syn keyword javaLangDeprecated Compiler syn cluster javaClasses add=javaC_JavaLang hi def link javaC_JavaLang javaC_Java syn keyword javaE_JavaLang AbstractMethodError ClassCircularityError ClassFormatError Error IllegalAccessError IncompatibleClassChangeError InstantiationError InternalError LinkageError NoClassDefFoundError NoSuchFieldError NoSuchMethodError OutOfMemoryError StackOverflowError ThreadDeath UnknownError UnsatisfiedLinkError VerifyError VirtualMachineError ExceptionInInitializerError UnsupportedClassVersionError AssertionError BootstrapMethodError syn cluster javaClasses add=javaE_JavaLang hi def link javaE_JavaLang javaE_Java syn keyword javaX_JavaLang ClassNotFoundException CloneNotSupportedException Exception IllegalAccessException InstantiationException InterruptedException NoSuchMethodException Throwable NoSuchFieldException ReflectiveOperationException syn cluster javaClasses add=javaX_JavaLang hi def link javaX_JavaLang javaX_Java hi def link javaR_Java javaR_ hi def link javaC_Java javaC_ hi def link javaE_Java javaE_ hi def link javaX_Java javaX_ hi def link javaX_ javaExceptions hi def link javaR_ javaExceptions hi def link javaE_ javaExceptions hi def link javaC_ javaConstant syn keyword javaLangObject clone equals finalize getClass hashCode syn keyword javaLangObject notify notifyAll toString wait hi def link javaLangObject javaConstant endif if filereadable(expand("<sfile>:p:h") . "/javaid.vim") source <sfile>:p:h/javaid.vim endif if exists("java_space_errors") if !exists("java_no_trail_space_error") syn match javaSpaceError "\s\+$" endif if !exists("java_no_tab_space_error") syn match javaSpaceError " \+\t"me=e-1 endif endif exec 'syn match javaUserLabel "^\s*\<\K\k*\>\%(\<default\>\)\@' . s:ff.Peek('7', '') . '<!\s*:"he=e-1' syn region javaLabelRegion transparent matchgroup=javaLabel start="\<case\>" matchgroup=NONE end=":\|->" contains=javaLabelCastType,javaLabelNumber,javaCharacter,javaString,javaConstant,@javaClasses,javaGenerics,javaLabelDefault,javaLabelVarType,javaLabelWhenClause syn region javaLabelRegion transparent matchgroup=javaLabel start="\<default\>\%(\s*\%(:\|->\)\)\@=" matchgroup=NONE end=":\|->" oneline " Consider grouped _default_ _case_ labels, i.e. " case null, default -> " case null: default: syn keyword javaLabelDefault contained default syn keyword javaLabelVarType contained var syn keyword javaLabelCastType contained char byte short int " Allow for the contingency of the enclosing region not being able to " _keep_ its _end_, e.g. case ':':. syn region javaLabelWhenClause contained transparent matchgroup=javaLabel start="\<when\>" matchgroup=NONE end=":"me=e-1 end="->"me=e-2 contains=TOP,javaExternal,javaLambdaDef syn match javaLabelNumber contained "\<0\>[lL]\@!" syn match javaLabelNumber contained "\<\%(0\%([xX]\x\%(_*\x\)*\|_*\o\%(_*\o\)*\|[bB][01]\%(_*[01]\)*\)\|[1-9]\%(_*\d\)*\)\>[lL]\@!" hi def link javaLabelDefault javaLabel hi def link javaLabelVarType javaOperator hi def link javaLabelNumber javaNumber hi def link javaLabelCastType javaType " Comments syn keyword javaTodo contained TODO FIXME XXX if exists("java_comment_strings") syn region javaCommentString contained start=+"+ end=+"+ end=+$+ end=+\*/+me=s-1,he=s-1 contains=javaSpecial,javaCommentStar,javaSpecialChar,@Spell syn region javaCommentString contained start=+"""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaSpecial,javaCommentStar,javaSpecialChar,@Spell,javaSpecialError,javaTextBlockError syn region javaComment2String contained start=+"+ end=+$\|"+ contains=javaSpecial,javaSpecialChar,@Spell syn match javaCommentCharacter contained "'\\[^']\{1,6\}'" contains=javaSpecialChar syn match javaCommentCharacter contained "'\\''" contains=javaSpecialChar syn match javaCommentCharacter contained "'[^\\]'" syn cluster javaCommentSpecial add=javaCommentString,javaCommentCharacter,javaNumber,javaStrTempl syn cluster javaCommentSpecial2 add=javaComment2String,javaCommentCharacter,javaNumber,javaStrTempl endif syn region javaComment matchgroup=javaCommentStart start="/\*" end="\*/" contains=@javaCommentSpecial,javaTodo,javaCommentError,javaSpaceError,@Spell fold syn match javaCommentStar contained "^\s*\*[^/]"me=e-1 syn match javaCommentStar contained "^\s*\*$" syn match javaLineComment "//.*" contains=@javaCommentSpecial2,javaTodo,javaCommentMarkupTag,javaSpaceError,@Spell syn match javaCommentMarkupTag contained "@\%(end\|highlight\|link\|replace\|start\)\>" nextgroup=javaCommentMarkupTagAttr,javaSpaceError skipwhite syn match javaCommentMarkupTagAttr contained "\<region\>" nextgroup=javaCommentMarkupTagAttr,javaSpaceError skipwhite exec 'syn region javaCommentMarkupTagAttr contained transparent matchgroup=htmlArg start=/\<\%(re\%(gex\|gion\|placement\)\|substring\|t\%(arget\|ype\)\)\%(\s*=\)\@=/ matchgroup=htmlString end=/\%(=\s*\)\@' . s:ff.Peek('80', '') . '<=\%("[^"]\+"\|' . "\x27[^\x27]\\+\x27" . '\|\%([.-]\|\k\)\+\)/ nextgroup=javaCommentMarkupTagAttr,javaSpaceError skipwhite oneline' hi def link javaCommentMarkupTagAttr htmlArg hi def link javaCommentString javaString hi def link javaComment2String javaString hi def link javaCommentCharacter javaCharacter syn match javaCommentError contained "/\*"me=e-1 display hi def link javaCommentError javaError hi def link javaCommentStart javaComment if !exists("java_ignore_javadoc") && main_syntax != 'jsp' syntax case ignore " Include HTML syntax coloring for Javadoc comments. syntax include @javaHtml syntax/html.vim unlet b:current_syntax " HTML enables spell checking for all text that is not in a syntax " item (:syntax spell toplevel); instead, limit spell checking to " items matchable with syntax groups containing the @Spell cluster. try syntax spell default catch /\<E390:/ call s:ReportOnce(v:exception) endtry syn region javaDocComment start="/\*\*" end="\*/" keepend contains=javaCommentTitle,@javaHtml,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag,javaTodo,javaCommentError,javaSpaceError,@Spell fold exec 'syn region javaCommentTitle contained matchgroup=javaDocComment start="/\*\*" matchgroup=javaCommentTitle end="\.$" end="\.[ \t\r]\@=" end="\%(^\s*\**\s*\)\@' . s:ff.Peek('80', '') . '<=@"me=s-2,he=s-1 end="\*/"me=s-1,he=s-1 contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag' syn region javaCommentTitle contained matchgroup=javaDocComment start="/\*\*\s*\r\=\n\=\s*\**\s*\%({@return\>\)\@=" matchgroup=javaCommentTitle end="}\%(\s*\.*\)*" contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag syn region javaDocTags contained start="{@\%(li\%(teral\|nk\%(plain\)\=\)\|inherit[Dd]oc\|doc[rR]oot\|value\)\>" end="}" syn match javaDocTags contained "@\%(param\|exception\|throws\|since\)\s\+\S\+" contains=javaDocParam syn match javaDocParam contained "\s\S\+" syn match javaDocTags contained "@\%(version\|author\|return\|deprecated\|serial\%(Field\|Data\)\=\)\>" syn region javaDocSeeTag contained matchgroup=javaDocTags start="@see\s\+" matchgroup=NONE end="\_."re=e-1 contains=javaDocSeeTagParam syn match javaDocSeeTagParam contained @"\_[^"]\+"\|<a\s\+\_.\{-}</a>\|\%(\k\|\.\)*\%(#\k\+\%((\_[^)]*)\)\=\)\=@ contains=@javaHtml extend syn region javaCodeSkipBlock contained transparent start="{\%(@code\>\)\@!" end="}" contains=javaCodeSkipBlock,javaDocCodeTag syn region javaDocCodeTag contained start="{@code\>" end="}" contains=javaDocCodeTag,javaCodeSkipBlock exec 'syn region javaDocSnippetTagAttr contained transparent matchgroup=htmlArg start=/\<\%(class\|file\|id\|lang\|region\)\%(\s*=\)\@=/ matchgroup=htmlString end=/:$/ end=/\%(=\s*\)\@' . s:ff.Peek('80', '') . '<=\%("[^"]\+"\|' . "\x27[^\x27]\\+\x27" . '\|\%([.\\/-]\|\k\)\+\)/ nextgroup=javaDocSnippetTagAttr skipwhite skipnl' syn region javaSnippetSkipBlock contained transparent start="{\%(@snippet\>\)\@!" end="}" contains=javaSnippetSkipBlock,javaDocSnippetTag,javaCommentMarkupTag syn region javaDocSnippetTag contained start="{@snippet\>" end="}" contains=javaDocSnippetTag,javaSnippetSkipBlock,javaDocSnippetTagAttr,javaCommentMarkupTag syntax case match endif " match the special comment /**/ syn match javaComment "/\*\*/" " Strings and constants syn match javaSpecialError contained "\\." syn match javaSpecialCharError contained "[^']" " Escape Sequences (JLS-17, §3.10.7): syn match javaSpecialChar contained "\\\%(u\x\x\x\x\|[0-3]\o\o\|\o\o\=\|[bstnfr"'\\]\)" syn region javaString start=+"+ end=+"+ end=+$+ contains=javaSpecialChar,javaSpecialError,@Spell syn region javaString start=+"""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaSpecialChar,javaSpecialError,javaTextBlockError,@Spell syn match javaTextBlockError +"""\s*"""+ syn region javaStrTemplEmbExp contained matchgroup=javaStrTempl start="\\{" end="}" contains=TOP exec 'syn region javaStrTempl start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="+ end=+"+ contains=javaStrTemplEmbExp,javaSpecialChar,javaSpecialError,@Spell' exec 'syn region javaStrTempl start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaStrTemplEmbExp,javaSpecialChar,javaSpecialError,javaTextBlockError,@Spell' syn match javaCharacter "'[^']*'" contains=javaSpecialChar,javaSpecialCharError syn match javaCharacter "'\\''" contains=javaSpecialChar syn match javaCharacter "'[^\\]'" " Integer literals (JLS-17, §3.10.1): syn keyword javaNumber 0 0l 0L syn match javaNumber "\<\%(0\%([xX]\x\%(_*\x\)*\|_*\o\%(_*\o\)*\|[bB][01]\%(_*[01]\)*\)\|[1-9]\%(_*\d\)*\)[lL]\=\>" " Decimal floating-point literals (JLS-17, §3.10.2): " Against "\<\d\+\>\.": syn match javaNumber "\<\d\%(_*\d\)*\." syn match javaNumber "\%(\<\d\%(_*\d\)*\.\%(\d\%(_*\d\)*\)\=\|\.\d\%(_*\d\)*\)\%([eE][-+]\=\d\%(_*\d\)*\)\=[fFdD]\=\>" syn match javaNumber "\<\d\%(_*\d\)*[eE][-+]\=\d\%(_*\d\)*[fFdD]\=\>" syn match javaNumber "\<\d\%(_*\d\)*\%([eE][-+]\=\d\%(_*\d\)*\)\=[fFdD]\>" " Hexadecimal floating-point literals (JLS-17, §3.10.2): syn match javaNumber "\<0[xX]\%(\x\%(_*\x\)*\.\=\|\%(\x\%(_*\x\)*\)\=\.\x\%(_*\x\)*\)[pP][-+]\=\d\%(_*\d\)*[fFdD]\=\>" " Unicode characters syn match javaSpecial "\\u\x\x\x\x" " Method declarations (JLS-17, §8.4.3, §8.4.4, §9.4). if exists("java_highlight_functions") syn cluster javaFuncParams contains=javaAnnotation,@javaClasses,javaGenerics,javaType,javaVarArg,javaComment,javaLineComment if java_highlight_functions =~# '^indent[1-8]\=$' let s:last = java_highlight_functions[-1 :] let s:indent = s:last != 't' ? repeat("\x20", s:last) : "\t" syn cluster javaFuncParams add=javaScopeDecl,javaConceptKind,javaStorageClass,javaExternal " Try to not match other type members, initialiser blocks, enum " constants (JLS-17, §8.9.1), and constructors (JLS-17, §8.1.7): " at any _conventional_ indentation, skip over all fields with " "[^=]*", all records with "\<record\s", and let the "*Skip*" " definitions take care of constructor declarations and enum " constants (with no support for @Foo(value = "bar")). exec 'syn region javaFuncDef start=+^' . s:indent . '\%(<[^>]\+>\+\s\+\|\%(\%(@\%(\K\k*\.\)*\K\k*\>\)\s\+\)\+\)\=\%(\<\K\k*\>\.\)*\K\k*\>[^=]*\%(\<record\)\@' . s:ff.Peek('6', '') . '<!\s\K\k*\s*(+ end=+)+ contains=@javaFuncParams' " As long as package-private constructors cannot be matched with " javaFuncDef, do not look with javaConstructorSkipDeclarator for " them. exec 'syn match javaConstructorSkipDeclarator transparent +^' . s:indent . '\%(\%(@\%(\K\k*\.\)*\K\k*\>\)\s\+\)*p\%(ublic\|rotected\|rivate\)\s\+\%(<[^>]\+>\+\s\+\)\=\K\k*\s*\ze(+ contains=javaAnnotation,javaScopeDecl' exec 'syn match javaEnumSkipArgumentativeConstant transparent +^' . s:indent . '\%(\%(@\%(\K\k*\.\)*\K\k*\>\)\s\+\)*\K\k*\s*\ze(+ contains=javaAnnotation' unlet s:indent s:last else " This is the "style" variant (:help ft-java-syntax). syn cluster javaFuncParams add=javaScopeDecl,javaConceptKind,javaStorageClass,javaExternal " Match arbitrarily indented camelCasedName method declarations. " Match: [@ɐ] [abstract] [<α, β>] Τʬ[<γ>][[][]] μʭʭ(/* ... */); exec 'syn region javaFuncDef start=/' . s:ff.Engine('\%#=2', '') . '^\s\+\%(\%(@\%(\K\k*\.\)*\K\k*\>\)\s\+\)*\%(p\%(ublic\|rotected\|rivate\)\s\+\)\=\%(\%(abstract\|default\)\s\+\|\%(\%(final\|\%(native\|strictfp\)\|s\%(tatic\|ynchronized\)\)\s\+\)*\)\=\%(<.*[[:space:]-]\@' . s:ff.Peek('1', '') . '<!>\s\+\)\=\%(void\|\%(b\%(oolean\|yte\)\|char\|short\|int\|long\|float\|double\|\%(\<\K\k*\>\.\)*\<' . s:ff.UpperCase('[$_[:upper:]]', '[^a-z0-9]') . '\k*\>\%(<[^(){}]*[[:space:]-]\@' . s:ff.Peek('1', '') . '<!>\)\=\)\%(\[\]\)*\)\s\+\<' . s:ff.LowerCase('[$_[:lower:]]', '[^A-Z0-9]') . '\k*\>\s*(/ end=/)/ skip=/\/\*.\{-}\*\/\|\/\/.*$/ contains=@javaFuncParams' endif endif if exists("java_highlight_debug") " Strings and constants syn match javaDebugSpecial contained "\\\%(u\x\x\x\x\|[0-3]\o\o\|\o\o\=\|[bstnfr"'\\]\)" syn region javaDebugString contained start=+"+ end=+"+ contains=javaDebugSpecial syn region javaDebugString contained start=+"""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaDebugSpecial,javaDebugTextBlockError " The highlight groups of java{StrTempl,Debug{,Paren,StrTempl}}\, " share one colour by default. Do not conflate unrelated parens. syn region javaDebugStrTemplEmbExp contained matchgroup=javaDebugStrTempl start="\\{" end="}" contains=javaComment,javaLineComment,javaDebug\%(Paren\)\@!.* exec 'syn region javaDebugStrTempl contained start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="+ end=+"+ contains=javaDebugStrTemplEmbExp,javaDebugSpecial' exec 'syn region javaDebugStrTempl contained start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaDebugStrTemplEmbExp,javaDebugSpecial,javaDebugTextBlockError' syn match javaDebugTextBlockError contained +"""\s*"""+ syn match javaDebugCharacter contained "'[^\\]'" syn match javaDebugSpecialCharacter contained "'\\.'" syn match javaDebugSpecialCharacter contained "'\\''" syn keyword javaDebugNumber contained 0 0l 0L syn match javaDebugNumber contained "\<\d\%(_*\d\)*\." syn match javaDebugNumber contained "\<\%(0\%([xX]\x\%(_*\x\)*\|_*\o\%(_*\o\)*\|[bB][01]\%(_*[01]\)*\)\|[1-9]\%(_*\d\)*\)[lL]\=\>" syn match javaDebugNumber contained "\%(\<\d\%(_*\d\)*\.\%(\d\%(_*\d\)*\)\=\|\.\d\%(_*\d\)*\)\%([eE][-+]\=\d\%(_*\d\)*\)\=[fFdD]\=\>" syn match javaDebugNumber contained "\<\d\%(_*\d\)*[eE][-+]\=\d\%(_*\d\)*[fFdD]\=\>" syn match javaDebugNumber contained "\<\d\%(_*\d\)*\%([eE][-+]\=\d\%(_*\d\)*\)\=[fFdD]\>" syn match javaDebugNumber contained "\<0[xX]\%(\x\%(_*\x\)*\.\=\|\%(\x\%(_*\x\)*\)\=\.\x\%(_*\x\)*\)[pP][-+]\=\d\%(_*\d\)*[fFdD]\=\>" syn keyword javaDebugBoolean contained true false syn keyword javaDebugType contained null this super syn region javaDebugParen start=+(+ end=+)+ contained contains=javaDebug.*,javaDebugParen " To make this work, define the highlighting for these groups. syn match javaDebug "\<System\.\%(out\|err\)\.print\%(ln\)\=\s*("me=e-1 contains=javaDebug.* nextgroup=javaDebugParen " FIXME: What API does "p" belong to? " syn match javaDebug "\<p\s*("me=e-1 contains=javaDebug.* nextgroup=javaDebugParen syn match javaDebug "\<\K\k*\.printStackTrace\s*("me=e-1 contains=javaDebug.* nextgroup=javaDebugParen " FIXME: What API do "trace*" belong to? " syn match javaDebug "\<trace[SL]\=\s*("me=e-1 contains=javaDebug.* nextgroup=javaDebugParen hi def link javaDebug Debug hi def link javaDebugString DebugString hi def link javaDebugStrTempl Macro hi def link javaDebugTextBlockError Error hi def link javaDebugType DebugType hi def link javaDebugBoolean DebugBoolean hi def link javaDebugNumber Debug hi def link javaDebugSpecial DebugSpecial hi def link javaDebugSpecialCharacter DebugSpecial hi def link javaDebugCharacter DebugString hi def link javaDebugParen Debug hi def link DebugString String hi def link DebugSpecial Special hi def link DebugBoolean Boolean hi def link DebugType Type endif " Try not to fold top-level-type bodies under assumption that there is " but one such body. exec 'syn region javaBlock transparent start="\%(^\|^\S[^:]\+\)\@' . s:ff.Peek('120', '') . '<!{" end="}" fold' if exists("java_mark_braces_in_parens_as_errors") syn match javaInParen contained "[{}]" hi def link javaInParen javaError endif " catch errors caused by wrong parenthesis syn region javaParenT transparent matchgroup=javaParen start="(" end=")" contains=@javaTop,javaInParen,javaParenT1 syn region javaParenT1 transparent matchgroup=javaParen1 start="(" end=")" contains=@javaTop,javaInParen,javaParenT2 contained syn region javaParenT2 transparent matchgroup=javaParen2 start="(" end=")" contains=@javaTop,javaInParen,javaParenT contained syn match javaParenError ")" " catch errors caused by wrong square parenthesis syn region javaParenT transparent matchgroup=javaParen start="\[" end="\]" contains=@javaTop,javaParenT1 syn region javaParenT1 transparent matchgroup=javaParen1 start="\[" end="\]" contains=@javaTop,javaParenT2 contained syn region javaParenT2 transparent matchgroup=javaParen2 start="\[" end="\]" contains=@javaTop,javaParenT contained syn match javaParenError "\]" hi def link javaParenError javaError " Lambda expressions (JLS-17, §15.27). if exists("java_highlight_functions") " Make ()-matching definitions after the parenthesis error catcher. " " Match: ([@A [@B ...] final] var a[, var b, ...]) -> " | ([@A [@B ...] final] T[<α>][[][]] a[, T b, ...]) -> " There is no recognition of expressions interspersed with comments " or of expressions whose parameterised parameter types are written " across multiple lines. exec 'syn match javaLambdaDef "\k\@' . s:ff.Peek('4', '') . '<!([[:space:]\n]*\%(\%(@\%(\K\k*\.\)*\K\k*\>\%((\_.\{-1,})\)\{-,1}[[:space:]\n]\+\)*\%(final[[:space:]\n]\+\)\=\%(\<\K\k*\>\.\)*\<\K\k*\>\%(<[^(){}]*[[:space:]-]\@' . s:ff.Peek('1', '') . '<!>\)\=\%(\%(\%(\[\]\)\+\|\.\.\.\)\)\=[[:space:]\n]\+\<\K\k*\>\%(\[\]\)*\%(,[[:space:]\n]*\)\=\)\+)[[:space:]\n]*->" contains=javaAnnotation,javaParamModifier,javaLambdaVarType,javaType,@javaClasses,javaGenerics,javaVarArg' " Match: () -> " | (a[, b, ...]) -> exec 'syn match javaLambdaDef "\k\@' . s:ff.Peek('4', '') . '<!([[:space:]\n]*\%(\<\K\k*\>\%(,[[:space:]\n]*\)\=\)*)[[:space:]\n]*->"' " Match: a -> exec 'syn match javaLambdaDef "\<\K\k*\>\%(\<default\>\)\@' . s:ff.Peek('7', '') . '<![[:space:]\n]*->"' syn keyword javaParamModifier contained final hi def link javaParamModifier javaConceptKind syn keyword javaLambdaVarType contained var hi def link javaLambdaVarType javaOperator endif " The @javaTop cluster comprises non-contained Java syntax groups. " Note that the syntax file "aidl.vim" relies on its availability. syn cluster javaTop contains=TOP if !exists("java_minlines") let java_minlines = 10 endif " Note that variations of a /*/ balanced comment, e.g., /*/*/, /*//*/, " /* /*/, /* /*/, etc., may have their rightmost /*/ part accepted " as a comment start by ':syntax sync ccomment'; consider alternatives " to make synchronisation start further towards file's beginning by " bumping up g:java_minlines or issuing ':syntax sync fromstart' or " preferring &foldmethod set to 'syntax'. exec "syn sync ccomment javaComment minlines=" . java_minlines " The default highlighting. hi def link javaLambdaDef Function hi def link javaFuncDef Function hi def link javaVarArg Function hi def link javaBranch Conditional hi def link javaUserLabelRef javaUserLabel hi def link javaLabel Label hi def link javaUserLabel Label hi def link javaConditional Conditional hi def link javaRepeat Repeat hi def link javaExceptions Exception hi def link javaAssert Statement hi def link javaStorageClass StorageClass hi def link javaMethodDecl javaStorageClass hi def link javaClassDecl javaStorageClass hi def link javaScopeDecl javaStorageClass hi def link javaConceptKind NonText hi def link javaBoolean Boolean hi def link javaSpecial Special hi def link javaSpecialError Error hi def link javaSpecialCharError Error hi def link javaString String hi def link javaStrTempl Macro hi def link javaCharacter Character hi def link javaSpecialChar SpecialChar hi def link javaNumber Number hi def link javaError Error hi def link javaTextBlockError Error hi def link javaStatement Statement hi def link javaOperator Operator hi def link javaComment Comment hi def link javaDocComment Comment hi def link javaLineComment Comment hi def link javaConstant Constant hi def link javaTypedef Typedef hi def link javaTodo Todo hi def link javaAnnotation PreProc hi def link javaAnnotationStart javaAnnotation hi def link javaCommentTitle SpecialComment hi def link javaDocTags Special hi def link javaDocCodeTag Special hi def link javaDocSnippetTag Special hi def link javaDocParam Function hi def link javaDocSeeTagParam Function hi def link javaCommentStar javaComment hi def link javaType Type hi def link javaExternal Include hi def link htmlComment Special hi def link htmlCommentPart Special hi def link htmlArg Type hi def link htmlString String hi def link javaSpaceError Error if s:module_info_cur_buf hi def link javaModuleStorageClass StorageClass hi def link javaModuleStmt Statement hi def link javaModuleExternal Include endif let b:current_syntax = "java" if main_syntax == 'java' unlet main_syntax endif let b:spell_options = "contained" let &cpo = s:cpo_save unlet s:module_info_cur_buf s:ff s:cpo_save " See ":help vim9-mix". if !has("vim9script") finish endif def! s:JavaSyntaxFoldTextExpr(): string return getline(v:foldstart) !~ '/\*\+\s*$' ? foldtext() : printf('+-%s%3d lines: ', v:folddashes, (v:foldend - v:foldstart + 1)) .. getline(v:foldstart + 1) enddef setlocal foldtext=s:JavaSyntaxFoldTextExpr() delfunction! g:JavaSyntaxFoldTextExpr " vim: sw=2 ts=8 noet sta