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author | alexv-smirnov <alex@ydb.tech> | 2023-03-15 19:59:12 +0300 |
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committer | alexv-smirnov <alex@ydb.tech> | 2023-03-15 19:59:12 +0300 |
commit | 056bb284ccf8dd6793ec3a54ffa36c4fb2b9ad11 (patch) | |
tree | 4740980126f32e3af7937ba0ca5f83e59baa4ab0 /contrib/tools/cython/Cython/Compiler/Lexicon.py | |
parent | 269126dcced1cc8b53eb4398b4a33e5142f10290 (diff) | |
download | ydb-056bb284ccf8dd6793ec3a54ffa36c4fb2b9ad11.tar.gz |
add library/cpp/actors, ymake build to ydb oss export
Diffstat (limited to 'contrib/tools/cython/Cython/Compiler/Lexicon.py')
-rw-r--r-- | contrib/tools/cython/Cython/Compiler/Lexicon.py | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/contrib/tools/cython/Cython/Compiler/Lexicon.py b/contrib/tools/cython/Cython/Compiler/Lexicon.py new file mode 100644 index 0000000000..72c9ceaefd --- /dev/null +++ b/contrib/tools/cython/Cython/Compiler/Lexicon.py @@ -0,0 +1,138 @@ +# cython: language_level=3, py2_import=True +# +# Cython Scanner - Lexical Definitions +# + +from __future__ import absolute_import, unicode_literals + +raw_prefixes = "rR" +bytes_prefixes = "bB" +string_prefixes = "fFuU" + bytes_prefixes +char_prefixes = "cC" +any_string_prefix = raw_prefixes + string_prefixes + char_prefixes +IDENT = 'IDENT' + + +def make_lexicon(): + from ..Plex import \ + Str, Any, AnyBut, AnyChar, Rep, Rep1, Opt, Bol, Eol, Eof, \ + TEXT, IGNORE, State, Lexicon + from .Scanning import Method + + letter = Any("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_") + digit = Any("0123456789") + bindigit = Any("01") + octdigit = Any("01234567") + hexdigit = Any("0123456789ABCDEFabcdef") + indentation = Bol + Rep(Any(" \t")) + + def underscore_digits(d): + return Rep1(d) + Rep(Str("_") + Rep1(d)) + + decimal = underscore_digits(digit) + dot = Str(".") + exponent = Any("Ee") + Opt(Any("+-")) + decimal + decimal_fract = (decimal + dot + Opt(decimal)) | (dot + decimal) + + name = letter + Rep(letter | digit) + intconst = decimal | (Str("0") + ((Any("Xx") + underscore_digits(hexdigit)) | + (Any("Oo") + underscore_digits(octdigit)) | + (Any("Bb") + underscore_digits(bindigit)) )) + intsuffix = (Opt(Any("Uu")) + Opt(Any("Ll")) + Opt(Any("Ll"))) | (Opt(Any("Ll")) + Opt(Any("Ll")) + Opt(Any("Uu"))) + intliteral = intconst + intsuffix + fltconst = (decimal_fract + Opt(exponent)) | (decimal + exponent) + imagconst = (intconst | fltconst) + Any("jJ") + + # invalid combinations of prefixes are caught in p_string_literal + beginstring = Opt(Rep(Any(string_prefixes + raw_prefixes)) | + Any(char_prefixes) + ) + (Str("'") | Str('"') | Str("'''") | Str('"""')) + two_oct = octdigit + octdigit + three_oct = octdigit + octdigit + octdigit + two_hex = hexdigit + hexdigit + four_hex = two_hex + two_hex + escapeseq = Str("\\") + (two_oct | three_oct | + Str('N{') + Rep(AnyBut('}')) + Str('}') | + Str('u') + four_hex | Str('x') + two_hex | + Str('U') + four_hex + four_hex | AnyChar) + + bra = Any("([{") + ket = Any(")]}") + punct = Any(":,;+-*/|&<>=.%`~^?!@") + diphthong = Str("==", "<>", "!=", "<=", ">=", "<<", ">>", "**", "//", + "+=", "-=", "*=", "/=", "%=", "|=", "^=", "&=", + "<<=", ">>=", "**=", "//=", "->", "@=") + spaces = Rep1(Any(" \t\f")) + escaped_newline = Str("\\\n") + lineterm = Eol + Opt(Str("\n")) + + comment = Str("#") + Rep(AnyBut("\n")) + + return Lexicon([ + (name, IDENT), + (intliteral, Method('strip_underscores', symbol='INT')), + (fltconst, Method('strip_underscores', symbol='FLOAT')), + (imagconst, Method('strip_underscores', symbol='IMAG')), + (punct | diphthong, TEXT), + + (bra, Method('open_bracket_action')), + (ket, Method('close_bracket_action')), + (lineterm, Method('newline_action')), + + (beginstring, Method('begin_string_action')), + + (comment, IGNORE), + (spaces, IGNORE), + (escaped_newline, IGNORE), + + State('INDENT', [ + (comment + lineterm, Method('commentline')), + (Opt(spaces) + Opt(comment) + lineterm, IGNORE), + (indentation, Method('indentation_action')), + (Eof, Method('eof_action')) + ]), + + State('SQ_STRING', [ + (escapeseq, 'ESCAPE'), + (Rep1(AnyBut("'\"\n\\")), 'CHARS'), + (Str('"'), 'CHARS'), + (Str("\n"), Method('unclosed_string_action')), + (Str("'"), Method('end_string_action')), + (Eof, 'EOF') + ]), + + State('DQ_STRING', [ + (escapeseq, 'ESCAPE'), + (Rep1(AnyBut('"\n\\')), 'CHARS'), + (Str("'"), 'CHARS'), + (Str("\n"), Method('unclosed_string_action')), + (Str('"'), Method('end_string_action')), + (Eof, 'EOF') + ]), + + State('TSQ_STRING', [ + (escapeseq, 'ESCAPE'), + (Rep1(AnyBut("'\"\n\\")), 'CHARS'), + (Any("'\""), 'CHARS'), + (Str("\n"), 'NEWLINE'), + (Str("'''"), Method('end_string_action')), + (Eof, 'EOF') + ]), + + State('TDQ_STRING', [ + (escapeseq, 'ESCAPE'), + (Rep1(AnyBut('"\'\n\\')), 'CHARS'), + (Any("'\""), 'CHARS'), + (Str("\n"), 'NEWLINE'), + (Str('"""'), Method('end_string_action')), + (Eof, 'EOF') + ]), + + (Eof, Method('eof_action')) + ], + + # FIXME: Plex 1.9 needs different args here from Plex 1.1.4 + #debug_flags = scanner_debug_flags, + #debug_file = scanner_dump_file + ) + |