Mercurial > vim
diff runtime/syntax/java.vim @ 34466:315c0d987fd2
runtime(java): Improve the recognition of literals (#14120)
Commit: https://github.com/vim/vim/commit/100a665634a0a2edbc755daf453c4915800684dd
Author: Aliaksei Budavei <32549825+zzzyxwvut@users.noreply.github.com>
Date: Sat Mar 2 01:11:14 2024 +0300
runtime(java): Improve the recognition of literals (https://github.com/vim/vim/issues/14120)
* Emend the Unicode and octal escape sequence patterns;
* Accept the (repeated) underscore separators in all
numerical literals;
* Recognise hexadecimal floating-point literals.
(The space escape sequence '\s' will be introduced along
with text blocks in another PR.)
References:
https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.3
https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.1
https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.2
https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.10.7
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Fri, 01 Mar 2024 23:15:09 +0100 |
| parents | 5609b011fd70 |
| children | f5d114f7440e |
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--- a/runtime/syntax/java.vim +++ b/runtime/syntax/java.vim @@ -2,7 +2,7 @@ " Language: Java " Maintainer: Claudio Fleiner <claudio@fleiner.com> " URL: https://github.com/fleiner/vim/blob/master/runtime/syntax/java.vim -" Last Change: 2024 Feb 27 +" Last Change: 2024 Mar 01 " Please check :help java.vim for comments on some of the options available. @@ -226,20 +226,28 @@ syn match javaComment "/\*\*/" " Strings and constants syn match javaSpecialError contained "\\." syn match javaSpecialCharError contained "[^']" -syn match javaSpecialChar contained "\\\([4-9]\d\|[0-3]\d\d\|[\"\\'ntbrf]\|u\x\{4\}\)" +" Escape Sequences (JLS-17, §3.10.7): +syn match javaSpecialChar contained "\\\%(u\x\x\x\x\|[0-3]\o\o\|\o\o\=\|[btnfr"'\\]\)" syn region javaString start=+"+ end=+"+ end=+$+ contains=javaSpecialChar,javaSpecialError,@Spell -" next line disabled, it can cause a crash for a long line +" The next line is commented out, it can cause a crash for a long line "syn match javaStringError +"\([^"\\]\|\\.\)*$+ syn match javaCharacter "'[^']*'" contains=javaSpecialChar,javaSpecialCharError syn match javaCharacter "'\\''" contains=javaSpecialChar syn match javaCharacter "'[^\\]'" -syn match javaNumber "\<\(0[bB][0-1]\+\|0[0-7]*\|0[xX]\x\+\|\d\(\d\|_\d\)*\)[lL]\=\>" -syn match javaNumber "\(\<\d\(\d\|_\d\)*\.\(\d\(\d\|_\d\)*\)\=\|\.\d\(\d\|_\d\)*\)\([eE][-+]\=\d\(\d\|_\d\)*\)\=[fFdD]\=" -syn match javaNumber "\<\d\(\d\|_\d\)*[eE][-+]\=\d\(\d\|_\d\)*[fFdD]\=\>" -syn match javaNumber "\<\d\(\d\|_\d\)*\([eE][-+]\=\d\(\d\|_\d\)*\)\=[fFdD]\>" +" 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\d\{4\}" +" Unicode characters +syn match javaSpecial "\\u\x\x\x\x" syn cluster javaTop add=javaString,javaCharacter,javaNumber,javaSpecial,javaStringError @@ -265,16 +273,19 @@ endif if exists("java_highlight_debug") " Strings and constants - syn match javaDebugSpecial contained "\\\d\d\d\|\\." + syn match javaDebugSpecial contained "\\\%(u\x\x\x\x\|[0-3]\o\o\|\o\o\=\|[btnfr"'\\]\)" syn region javaDebugString contained start=+"+ end=+"+ contains=javaDebugSpecial - syn match javaDebugStringError +"\([^"\\]\|\\.\)*$+ + syn match javaDebugStringError contained +"\%([^"\\]\|\\.\)*$+ syn match javaDebugCharacter contained "'[^\\]'" syn match javaDebugSpecialCharacter contained "'\\.'" syn match javaDebugSpecialCharacter contained "'\\''" - syn match javaDebugNumber contained "\<\(0[0-7]*\|0[xX]\x\+\|\d\+\)[lL]\=\>" - syn match javaDebugNumber contained "\(\<\d\+\.\d*\|\.\d\+\)\([eE][-+]\=\d\+\)\=[fFdD]\=" - syn match javaDebugNumber contained "\<\d\+[eE][-+]\=\d\+[fFdD]\=\>" - syn match javaDebugNumber contained "\<\d\+\([eE][-+]\=\d\+\)\=[fFdD]\>" + syn keyword javaDebugNumber contained 0 0l 0L + syn match javaNumber 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