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| -rw-r--r-- | runtime/syntax/python2.vim | 345 |
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diff --git a/runtime/syntax/python2.vim b/runtime/syntax/python2.vim new file mode 100644 index 0000000..3b30eab --- /dev/null +++ b/runtime/syntax/python2.vim @@ -0,0 +1,345 @@ +" Vim syntax file +" Language: Python 2 +" 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 +" +"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" +" NOTE: This file is a copy of the last commit of runtime/syntax/python.vim +" that still supported Python 2. There is support for Python 3, up to 3.5, +" and it was kept in the file as is, because it supports the straddling code +" (Python 2 and 3 compatible) better. +"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" + +" 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: |