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" Vim syntax file
" Language: Python
" Maintainer: Zvezdan Petkovic <zpetkovic@acm.org>
" Last Change: 2016 Oct 29
" Credits: Neil Schemenauer <nas@python.ca>
" Dmitry Vasiliev
"
" This version is a major rewrite by Zvezdan Petkovic.
"
" - introduced highlighting of doctests
" - updated keywords, built-ins, and exceptions
" - corrected regular expressions for
"
" * functions
" * decorators
" * strings
" * escapes
" * numbers
" * space error
"
" - corrected synchronization
" - more highlighting is ON by default, except
" - space error highlighting is OFF by default
"
" Optional highlighting can be controlled using these variables.
"
" let python_no_builtin_highlight = 1
" let python_no_doctest_code_highlight = 1
" let python_no_doctest_highlight = 1
" let python_no_exception_highlight = 1
" let python_no_number_highlight = 1
" let python_space_error_highlight = 1
"
" All the options above can be switched on together.
"
" let python_highlight_all = 1
"
" quit when a syntax file was already loaded.
if exists("b:current_syntax")
finish
endif
" We need nocompatible mode in order to continue lines with backslashes.
" Original setting will be restored.
let s:cpo_save = &cpo
set cpo&vim
if exists("python_no_doctest_highlight")
let python_no_doctest_code_highlight = 1
endif
if exists("python_highlight_all")
if exists("python_no_builtin_highlight")
unlet python_no_builtin_highlight
endif
if exists("python_no_doctest_code_highlight")
unlet python_no_doctest_code_highlight
endif
if exists("python_no_doctest_highlight")
unlet python_no_doctest_highlight
endif
if exists("python_no_exception_highlight")
unlet python_no_exception_highlight
endif
if exists("python_no_number_highlight")
unlet python_no_number_highlight
endif
let python_space_error_highlight = 1
endif
" Keep Python keywords in alphabetical order inside groups for easy
" comparison with the table in the 'Python Language Reference'
" https://docs.python.org/2/reference/lexical_analysis.html#keywords,
" https://docs.python.org/3/reference/lexical_analysis.html#keywords.
" Groups are in the order presented in NAMING CONVENTIONS in syntax.txt.
" Exceptions come last at the end of each group (class and def below).
"
" Keywords 'with' and 'as' are new in Python 2.6
" (use 'from __future__ import with_statement' in Python 2.5).
"
" Some compromises had to be made to support both Python 3 and 2.
" We include Python 3 features, but when a definition is duplicated,
" the last definition takes precedence.
"
" - 'False', 'None', and 'True' are keywords in Python 3 but they are
" built-ins in 2 and will be highlighted as built-ins below.
" - 'exec' is a built-in in Python 3 and will be highlighted as
" built-in below.
" - 'nonlocal' is a keyword in Python 3 and will be highlighted.
" - 'print' is a built-in in Python 3 and will be highlighted as
" built-in below (use 'from __future__ import print_function' in 2)
" - async and await were added in Python 3.5 and are soft keywords.
"
syn keyword pythonStatement False None True
syn keyword pythonStatement as assert break continue del exec global
syn keyword pythonStatement lambda nonlocal pass print return with yield
syn keyword pythonStatement class def nextgroup=pythonFunction skipwhite
syn keyword pythonConditional elif else if
syn keyword pythonRepeat for while
syn keyword pythonOperator and in is not or
syn keyword pythonException except finally raise try
syn keyword pythonInclude from import
syn keyword pythonAsync async await
" Decorators (new in Python 2.4)
" A dot must be allowed because of @MyClass.myfunc decorators.
syn match pythonDecorator "@" display contained
syn match pythonDecoratorName "@\s*\h\%(\w\|\.\)*" display contains=pythonDecorator
" Python 3.5 introduced the use of the same symbol for matrix multiplication:
" https://www.python.org/dev/peps/pep-0465/. We now have to exclude the
" symbol from highlighting when used in that context.
" Single line multiplication.
syn match pythonMatrixMultiply
\ "\%(\w\|[])]\)\s*@"
\ contains=ALLBUT,pythonDecoratorName,pythonDecorator,pythonFunction,pythonDoctestValue
\ transparent
" Multiplication continued on the next line after backslash.
syn match pythonMatrixMultiply
\ "[^\\]\\\s*\n\%(\s*\.\.\.\s\)\=\s\+@"
\ contains=ALLBUT,pythonDecoratorName,pythonDecorator,pythonFunction,pythonDoctestValue
\ transparent
" Multiplication in a parenthesized expression over multiple lines with @ at
" the start of each continued line; very similar to decorators and complex.
syn match pythonMatrixMultiply
\ "^\s*\%(\%(>>>\|\.\.\.\)\s\+\)\=\zs\%(\h\|\%(\h\|[[(]\).\{-}\%(\w\|[])]\)\)\s*\n\%(\s*\.\.\.\s\)\=\s\+@\%(.\{-}\n\%(\s*\.\.\.\s\)\=\s\+@\)*"
\ contains=ALLBUT,pythonDecoratorName,pythonDecorator,pythonFunction,pythonDoctestValue
\ transparent
syn match pythonFunction "\h\w*" display contained
syn match pythonComment "#.*$" contains=pythonTodo,@Spell
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
syn region pythonString matchgroup=pythonTripleQuotes
\ start=+[uU]\=\z('''\|"""\)+ end="\z1" keepend
\ contains=pythonEscape,pythonSpaceError,pythonDoctest,@Spell
syn region pythonRawString matchgroup=pythonQuotes
\ start=+[uU]\=[rR]\z(['"]\)+ end="\z1" skip="\\\\\|\\\z1"
\ contains=@Spell
syn region pythonRawString matchgroup=pythonTripleQuotes
\ start=+[uU]\=[rR]\z('''\|"""\)+ end="\z1" keepend
\ contains=pythonSpaceError,pythonDoctest,@Spell
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
" Python allows case-insensitive Unicode IDs: http://www.unicode.org/charts/
syn match pythonEscape "\\N{\a\+\%(\s\a\+\)*}" contained
syn match pythonEscape "\\$"
" It is very important to understand all details before changing the
" regular expressions below or their order.
" The word boundaries are *not* the floating-point number boundaries
" because of a possible leading or trailing decimal point.
" The expressions below ensure that all valid number literals are
" highlighted, and invalid number literals are not. For example,
"
" - a decimal point in '4.' at the end of a line is highlighted,
" - a second dot in 1.0.0 is not highlighted,
" - 08 is not highlighted,
" - 08e0 or 08j are highlighted,
"
" and so on, as specified in the 'Python Language Reference'.
" https://docs.python.org/2/reference/lexical_analysis.html#numeric-literals
" https://docs.python.org/3/reference/lexical_analysis.html#numeric-literals
if !exists("python_no_number_highlight")
" numbers (including longs and complex)
syn match pythonNumber "\<0[oO]\=\o\+[Ll]\=\>"
syn match pythonNumber "\<0[xX]\x\+[Ll]\=\>"
syn match pythonNumber "\<0[bB][01]\+[Ll]\=\>"
syn match pythonNumber "\<\%([1-9]\d*\|0\)[Ll]\=\>"
syn match pythonNumber "\<\d\+[jJ]\>"
syn match pythonNumber "\<\d\+[eE][+-]\=\d\+[jJ]\=\>"
syn match pythonNumber
\ "\<\d\+\.\%([eE][+-]\=\d\+\)\=[jJ]\=\%(\W\|$\)\@="
syn match pythonNumber
\ "\%(^\|\W\)\zs\d*\.\d\+\%([eE][+-]\=\d\+\)\=[jJ]\=\>"
endif
" Group the built-ins in the order in the 'Python Library Reference' for
" easier comparison.
" https://docs.python.org/2/library/constants.html
" https://docs.python.org/3/library/constants.html
" http://docs.python.org/2/library/functions.html
" http://docs.python.org/3/library/functions.html
" http://docs.python.org/2/library/functions.html#non-essential-built-in-functions
" http://docs.python.org/3/library/functions.html#non-essential-built-in-functions
" Python built-in functions are in alphabetical order.
if !exists("python_no_builtin_highlight")
" built-in constants
" 'False', 'True', and 'None' are also reserved words in Python 3
syn keyword pythonBuiltin False True None
syn keyword pythonBuiltin NotImplemented Ellipsis __debug__
" built-in functions
syn keyword pythonBuiltin abs all any bin bool bytearray callable chr
syn keyword pythonBuiltin classmethod compile complex delattr dict dir
syn keyword pythonBuiltin divmod enumerate eval filter float format
syn keyword pythonBuiltin frozenset getattr globals hasattr hash
syn keyword pythonBuiltin help hex id input int isinstance
syn keyword pythonBuiltin issubclass iter len list locals map max
syn keyword pythonBuiltin memoryview min next object oct open ord pow
syn keyword pythonBuiltin print property range repr reversed round set
syn keyword pythonBuiltin setattr slice sorted staticmethod str
syn keyword pythonBuiltin sum super tuple type vars zip __import__
" Python 2 only
syn keyword pythonBuiltin basestring cmp execfile file
syn keyword pythonBuiltin long raw_input reduce reload unichr
syn keyword pythonBuiltin unicode xrange
" Python 3 only
syn keyword pythonBuiltin ascii bytes exec
" non-essential built-in functions; Python 2 only
syn keyword pythonBuiltin apply buffer coerce intern
" avoid highlighting attributes as builtins
syn match pythonAttribute /\.\h\w*/hs=s+1
\ contains=ALLBUT,pythonBuiltin,pythonFunction,pythonAsync
\ transparent
endif
" From the 'Python Library Reference' class hierarchy at the bottom.
" http://docs.python.org/2/library/exceptions.html
" http://docs.python.org/3/library/exceptions.html
if !exists("python_no_exception_highlight")
" builtin base exceptions (used mostly as base classes for other exceptions)
syn keyword pythonExceptions BaseException Exception
syn keyword pythonExceptions ArithmeticError BufferError
syn keyword pythonExceptions LookupError
" builtin base exceptions removed in Python 3
syn keyword pythonExceptions EnvironmentError StandardError
" builtin exceptions (actually raised)
syn keyword pythonExceptions AssertionError AttributeError
syn keyword pythonExceptions EOFError FloatingPointError GeneratorExit
syn keyword pythonExceptions ImportError IndentationError
syn keyword pythonExceptions IndexError KeyError KeyboardInterrupt
syn keyword pythonExceptions MemoryError NameError NotImplementedError
syn keyword pythonExceptions OSError OverflowError ReferenceError
syn keyword pythonExceptions RuntimeError StopIteration SyntaxError
syn keyword pythonExceptions SystemError SystemExit TabError TypeError
syn keyword pythonExceptions UnboundLocalError UnicodeError
syn keyword pythonExceptions UnicodeDecodeError UnicodeEncodeError
syn keyword pythonExceptions UnicodeTranslateError ValueError
syn keyword pythonExceptions ZeroDivisionError
" builtin OS exceptions in Python 3
syn keyword pythonExceptions BlockingIOError BrokenPipeError
syn keyword pythonExceptions ChildProcessError ConnectionAbortedError
syn keyword pythonExceptions ConnectionError ConnectionRefusedError
syn keyword pythonExceptions ConnectionResetError FileExistsError
syn keyword pythonExceptions FileNotFoundError InterruptedError
syn keyword pythonExceptions IsADirectoryError NotADirectoryError
syn keyword pythonExceptions PermissionError ProcessLookupError
syn keyword pythonExceptions RecursionError StopAsyncIteration
syn keyword pythonExceptions TimeoutError
" builtin exceptions deprecated/removed in Python 3
syn keyword pythonExceptions IOError VMSError WindowsError
" builtin warnings
syn keyword pythonExceptions BytesWarning DeprecationWarning FutureWarning
syn keyword pythonExceptions ImportWarning PendingDeprecationWarning
syn keyword pythonExceptions RuntimeWarning SyntaxWarning UnicodeWarning
syn keyword pythonExceptions UserWarning Warning
" builtin warnings in Python 3
syn keyword pythonExceptions ResourceWarning
endif
if exists("python_space_error_highlight")
" trailing whitespace
syn match pythonSpaceError display excludenl "\s\+$"
" mixed tabs and spaces
syn match pythonSpaceError display " \+\t"
syn match pythonSpaceError display "\t\+ "
endif
" Do not spell doctests inside strings.
" Notice that the end of a string, either ''', or """, will end the contained
" doctest too. Thus, we do *not* need to have it as an end pattern.
if !exists("python_no_doctest_highlight")
if !exists("python_no_doctest_code_highlight")
syn region pythonDoctest
\ start="^\s*>>>\s" end="^\s*$"
\ contained contains=ALLBUT,pythonDoctest,pythonFunction,@Spell
syn region pythonDoctestValue
\ start=+^\s*\%(>>>\s\|\.\.\.\s\|"""\|'''\)\@!\S\++ end="$"
\ contained
else
syn region pythonDoctest
\ start="^\s*>>>" end="^\s*$"
\ contained contains=@NoSpell
endif
endif
" Sync at the beginning of class, function, or method definition.
syn sync match pythonSync grouphere NONE "^\%(def\|class\)\s\+\h\w*\s*[(:]"
" The default highlight links. Can be overridden later.
hi def link pythonStatement Statement
hi def link pythonConditional Conditional
hi def link pythonRepeat Repeat
hi def link pythonOperator Operator
hi def link pythonException Exception
hi def link pythonInclude Include
hi def link pythonAsync Statement
hi def link pythonDecorator Define
hi def link pythonDecoratorName Function
hi def link pythonFunction Function
hi def link pythonComment Comment
hi def link pythonTodo Todo
hi def link pythonString String
hi def link pythonRawString String
hi def link pythonQuotes String
hi def link pythonTripleQuotes pythonQuotes
hi def link pythonEscape Special
if !exists("python_no_number_highlight")
hi def link pythonNumber Number
endif
if !exists("python_no_builtin_highlight")
hi def link pythonBuiltin Function
endif
if !exists("python_no_exception_highlight")
hi def link pythonExceptions Structure
endif
if exists("python_space_error_highlight")
hi def link pythonSpaceError Error
endif
if !exists("python_no_doctest_highlight")
hi def link pythonDoctest Special
hi def link pythonDoctestValue Define
endif
let b:current_syntax = "python"
let &cpo = s:cpo_save
unlet s:cpo_save
" vim:set sw=2 sts=2 ts=8 noet: