Quelle teal.py Sprache: Python

"""
    pygments.lexers.teal
    ~~~~~~~~~~~~~~~~~~~~

    Lexer for TEAL.

    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

from pygments.lexer import RegexLexer, bygroups, include, words
from pygments.token import Comment, Name, Number, String, Text, Keyword, \
    Whitespace

__all__ = ['TealLexer']

class TealLexer(RegexLexer):
    """
    For the Transaction Execution Approval Language (TEAL)

    For more information about the grammar, see:
    https://github.com/algorand/go-algorand/blob/master/data/transactions/logic/assembler.go
    """
    name = 'teal'
    url = 'https://developer.algorand.org/docs/reference/teal/specification/'
    aliases = ['teal']
    filenames = ['*.teal']
    version_added = '2.9'

    keywords = words({
        'Sender', 'Fee', 'FirstValid', 'FirstValidTime', 'LastValid', 'Note',
        'Lease', 'Receiver', 'Amount', 'CloseRemainderTo', 'VotePK',
        'SelectionPK', 'VoteFirst', 'VoteLast', 'VoteKeyDilution', 'Type',
        'TypeEnum', 'XferAsset', 'AssetAmount', 'AssetSender', 'AssetReceiver',
        'AssetCloseTo', 'GroupIndex', 'TxID', 'ApplicationID', 'OnCompletion',
        'ApplicationArgs', 'NumAppArgs', 'Accounts', 'NumAccounts',
        'ApprovalProgram', 'ClearStateProgram', 'RekeyTo', 'ConfigAsset',
        'ConfigAssetTotal', 'ConfigAssetDecimals', 'ConfigAssetDefaultFrozen',
        'ConfigAssetUnitName', 'ConfigAssetName', 'ConfigAssetURL',
        'ConfigAssetMetadataHash', 'ConfigAssetManager', 'ConfigAssetReserve',
        'ConfigAssetFreeze', 'ConfigAssetClawback', 'FreezeAsset',
        'FreezeAssetAccount', 'FreezeAssetFrozen',
        'NoOp', 'OptIn', 'CloseOut', 'ClearState', 'UpdateApplication',
        'DeleteApplication',
        'MinTxnFee', 'MinBalance', 'MaxTxnLife', 'ZeroAddress', 'GroupSize',
        'LogicSigVersion', 'Round', 'LatestTimestamp', 'CurrentApplicationID',
        'AssetBalance', 'AssetFrozen',
        'AssetTotal', 'AssetDecimals', 'AssetDefaultFrozen', 'AssetUnitName',
        'AssetName', 'AssetURL', 'AssetMetadataHash', 'AssetManager',
        'AssetReserve', 'AssetFreeze', 'AssetClawback',
    }, suffix=r'\b')

    identifier = r'[^ \t\n]+(?=\/\/)|[^ \t\n]+'
    newline = r'\r?\n'
    tokens = {
        'root': [
            include('whitespace'),
            # pragmas match specifically on the space character
            (r'^#pragma .*' + newline, Comment.Directive),
            # labels must be followed by a space,
            # but anything after that is ignored
            ('(' + identifier + ':' + ')' + '([ \t].*)',
                bygroups(Name.Label, Comment.Single)),
            (identifier, Name.Function, 'function-args'),
        ],
        'function-args': [
            include('whitespace'),
            (r'"', String, 'string'),
            (r'(b(?:ase)?(?:32|64) ?)(\(?[a-zA-Z0-9+/=]+\)?)',
                bygroups(String.Affix, String.Other)),
            (r'[A-Z2-7]{58}', Number),  # address
            (r'0x[\da-fA-F]+', Number.Hex),
            (r'\d+', Number.Integer),
            (keywords, Keyword),
            (identifier, Name.Attributes),  # branch targets
            (newline, Text, '#pop'),
        ],
        'string': [
            (r'\\(?:["nrt\\]|x\d\d)', String.Escape),
            (r'[^\\\"\n]+', String),
            (r'"', String, '#pop'),
        ],
        'whitespace': [
            (r'[ \t]+', Whitespace),
            (r'//[^\n]+', Comment.Single),
        ],
    }

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