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venv/Lib/site-packages/pygments/lexers/go.py

@@ -0,0 +1,101 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.go
+    ~~~~~~~~~~~~~~~~~~
+
+    Lexers for the Google Go language.
+
+    :copyright: Copyright 2006-2020 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import RegexLexer, bygroups, words
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+    Number, Punctuation
+
+__all__ = ['GoLexer']
+
+
+class GoLexer(RegexLexer):
+    """
+    For `Go <http://golang.org>`_ source.
+
+    .. versionadded:: 1.2
+    """
+    name = 'Go'
+    filenames = ['*.go']
+    aliases = ['go']
+    mimetypes = ['text/x-gosrc']
+
+    flags = re.MULTILINE | re.UNICODE
+
+    tokens = {
+        'root': [
+            (r'\n', Text),
+            (r'\s+', Text),
+            (r'\\\n', Text),  # line continuations
+            (r'//(.*?)\n', Comment.Single),
+            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
+            (r'(import|package)\b', Keyword.Namespace),
+            (r'(var|func|struct|map|chan|type|interface|const)\b',
+             Keyword.Declaration),
+            (words((
+                'break', 'default', 'select', 'case', 'defer', 'go',
+                'else', 'goto', 'switch', 'fallthrough', 'if', 'range',
+                'continue', 'for', 'return'), suffix=r'\b'),
+             Keyword),
+            (r'(true|false|iota|nil)\b', Keyword.Constant),
+            # It seems the builtin types aren't actually keywords, but
+            # can be used as functions. So we need two declarations.
+            (words((
+                'uint', 'uint8', 'uint16', 'uint32', 'uint64',
+                'int', 'int8', 'int16', 'int32', 'int64',
+                'float', 'float32', 'float64',
+                'complex64', 'complex128', 'byte', 'rune',
+                'string', 'bool', 'error', 'uintptr',
+                'print', 'println', 'panic', 'recover', 'close', 'complex',
+                'real', 'imag', 'len', 'cap', 'append', 'copy', 'delete',
+                'new', 'make'), suffix=r'\b(\()'),
+             bygroups(Name.Builtin, Punctuation)),
+            (words((
+                'uint', 'uint8', 'uint16', 'uint32', 'uint64',
+                'int', 'int8', 'int16', 'int32', 'int64',
+                'float', 'float32', 'float64',
+                'complex64', 'complex128', 'byte', 'rune',
+                'string', 'bool', 'error', 'uintptr'), suffix=r'\b'),
+             Keyword.Type),
+            # imaginary_lit
+            (r'\d+i', Number),
+            (r'\d+\.\d*([Ee][-+]\d+)?i', Number),
+            (r'\.\d+([Ee][-+]\d+)?i', Number),
+            (r'\d+[Ee][-+]\d+i', Number),
+            # float_lit
+            (r'\d+(\.\d+[eE][+\-]?\d+|'
+             r'\.\d*|[eE][+\-]?\d+)', Number.Float),
+            (r'\.\d+([eE][+\-]?\d+)?', Number.Float),
+            # int_lit
+            # -- octal_lit
+            (r'0[0-7]+', Number.Oct),
+            # -- hex_lit
+            (r'0[xX][0-9a-fA-F]+', Number.Hex),
+            # -- decimal_lit
+            (r'(0|[1-9][0-9]*)', Number.Integer),
+            # char_lit
+            (r"""'(\\['"\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
+             r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|[^\\])'""",
+             String.Char),
+            # StringLiteral
+            # -- raw_string_lit
+            (r'`[^`]*`', String),
+            # -- interpreted_string_lit
+            (r'"(\\\\|\\"|[^"])*"', String),
+            # Tokens
+            (r'(<<=|>>=|<<|>>|<=|>=|&\^=|&\^|\+=|-=|\*=|/=|%=|&=|\|=|&&|\|\|'
+             r'|<-|\+\+|--|==|!=|:=|\.\.\.|[+\-*/%&])', Operator),
+            (r'[|^<>=!()\[\]{}.,;:]', Punctuation),
+            # identifier
+            (r'[^\W\d]\w*', Name.Other),
+        ]
+    }