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runtime(python): add syntax support inside f-strings

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fixes: #14033
closes: #17962

Signed-off-by: Rob B <github@0x7e.net>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Rob B
2025-09-05 11:28:47 +02:00
committed by Christian Brabandt
parent 9fd1a657d2
commit d2b28ddfc2
14 changed files with 180 additions and 164 deletions
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23
runtime/syntax/python.vim
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@@ -1,7 +1,7 @@
" Vim syntax file
" Language: Python
" Maintainer: Zvezdan Petkovic <zpetkovic@acm.org>
" Last Change: 2025 Aug 23
" Last Change: 2025 Sep 05
" Credits: Neil Schemenauer <nas@python.ca>
" Dmitry Vasiliev
" Rob B
@@ -218,21 +218,24 @@ syn region pythonRawBytes
" F-string replacement fields
"
" - Matched parentheses, brackets and braces are ignored
" - A bare # is ignored to end of line
" - A bare = (surrounded by optional whitespace) enables debugging
" - A bare ! prefixes a conversion field
" - Matched parentheses, brackets and braces are skipped
" - A bare = (followed by optional whitespace) enables debugging
" - A bare ! prefixes a conversion field (followed by optional whitespace)
" - A bare : begins a format specification
" - Matched braces inside a format specification are ignored
" - Matched braces inside a format specification are skipped
"
syn region pythonFStringField
\ matchgroup=pythonFStringDelimiter
\ start=/{/
\ skip=/([^)]*)\|\[[^]]*]\|{[^}]*}\|#.*$/
\ end=/\%(\s*=\s*\)\=\%(!\a\)\=\%(:\%({[^}]*}\|[^}]*\)\+\)\=}/
\ end=/\%(=\s*\)\=\%(!\a\s*\)\=\%(:\%({\_[^}]*}\|[^{}]*\)\+\)\=}/
\ contained
" Doubled braces and Unicode escapes are not replacement fields
syn match pythonFStringSkip /{{\|\\N{/ transparent contained contains=NONE
\ contains=ALLBUT,pythonFStringField,pythonClass,pythonFunction,pythonDoctest,pythonDoctestValue,@Spell
syn match pythonFStringFieldSkip /(\_[^()]*)\|\[\_[^][]*]\|{\_[^{}]*}/
\ contained
\ contains=ALLBUT,pythonFStringField,pythonClass,pythonFunction,pythonDoctest,pythonDoctestValue,@Spell
" Doubled braces are not replacement fields
syn match pythonFStringSkip /{{/ transparent contained contains=NONE
syn match pythonEscape +\\[abfnrtv'"\\]+ contained
syn match pythonEscape "\\\o\{1,3}" contained