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runtime(python): highlight bytes in python

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- Highlight bytes literals
- Do not highlight Unicode escape sequences in bytes literals

fixes: #14033
fixes: #17726
closes: #17728

Signed-off-by: Rob B <github@0x7e.net>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Rob B
2025-07-14 22:30:59 +02:00
committed by Christian Brabandt
parent baa781a4c3
commit a24f5be86d
8 changed files with 245 additions and 7 deletions
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42
runtime/syntax/python.vim
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@@ -1,9 +1,10 @@
" Vim syntax file
" Language: Python
" Maintainer: Zvezdan Petkovic <zpetkovic@acm.org>
" Last Change: 2023 Feb 28
" Last Change: 2025 Jul 14
" Credits: Neil Schemenauer <nas@python.ca>
" Dmitry Vasiliev
" Rob B
"
" This version is a major rewrite by Zvezdan Petkovic.
"
@@ -144,24 +145,48 @@ syn keyword pythonTodo FIXME NOTE NOTES TODO XXX contained
" Triple-quoted strings can contain doctests.
syn region pythonString matchgroup=pythonQuotes
\ start=+[uU]\=\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
\ contains=pythonEscape,@Spell
\ contains=pythonEscape,pythonUnicodeEscape,@Spell
syn region pythonString matchgroup=pythonTripleQuotes
\ start=+[uU]\=\z('''\|"""\)+ end="\z1" keepend
\ contains=pythonEscape,pythonSpaceError,pythonDoctest,@Spell
\ contains=pythonEscape,pythonUnicodeEscape,pythonSpaceError,pythonDoctest,@Spell
syn region pythonRawString matchgroup=pythonQuotes
\ start=+[uU]\=[rR]\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
\ start=+[rR]\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
\ contains=@Spell
syn region pythonRawString matchgroup=pythonTripleQuotes
\ start=+[uU]\=[rR]\z('''\|"""\)+ end="\z1" keepend
\ start=+[rR]\z('''\|"""\)+ end="\z1" keepend
\ contains=pythonSpaceError,pythonDoctest,@Spell
" Bytes
syn region pythonBytes
\ matchgroup=pythonQuotes
\ start=+\cB\z(['"]\)+
\ end="\z1"
\ skip="\\\\\|\\\z1"
\ contains=pythonEscape
syn region pythonBytes
\ matchgroup=pythonTripleQuotes
\ start=+\cB\z('''\|"""\)+
\ end="\z1"
\ keepend
\ contains=pythonEscape
syn region pythonRawBytes
\ matchgroup=pythonQuotes
\ start=+\c\%(BR\|RB\)\z(['"]\)+
\ end="\z1"
\ skip="\\\\\|\\\z1"
syn region pythonRawBytes
\ matchgroup=pythonTripleQuotes
\ start=+\c\%(BR\|RB\)\z('''\|"""\)+
\ end="\z1"
\ keepend
syn match pythonEscape +\\[abfnrtv'"\\]+ contained
syn match pythonEscape "\\\o\{1,3}" contained
syn match pythonEscape "\\x\x\{2}" contained
syn match pythonEscape "\%(\\u\x\{4}\|\\U\x\{8}\)" contained
syn match pythonUnicodeEscape "\%(\\u\x\{4}\|\\U\x\{8}\)" contained
" Python allows case-insensitive Unicode IDs: http://www.unicode.org/charts/
" The specification: https://www.unicode.org/versions/Unicode16.0.0/core-spec/chapter-4/#G135165
syn match pythonEscape "\\N{\a\+\%(\%(\s\a\+[[:alnum:]]*\)\|\%(-[[:alnum:]]\+\)\)*}" contained
syn match pythonUnicodeEscape "\\N{\a\+\%(\%(\s\a\+[[:alnum:]]*\)\|\%(-[[:alnum:]]\+\)\)*}" contained
syn match pythonEscape "\\$"
" It is very important to understand all details before changing the
@@ -313,9 +338,12 @@ hi def link pythonComment Comment
hi def link pythonTodo Todo
hi def link pythonString String
hi def link pythonRawString String
hi def link pythonBytes String
hi def link pythonRawBytes String
hi def link pythonQuotes String
hi def link pythonTripleQuotes pythonQuotes
hi def link pythonEscape Special
hi def link pythonUnicodeEscape pythonEscape
if !exists("python_no_number_highlight")
hi def link pythonNumber Number
endif