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Quelle  ecl.py   Sprache: Python

 
"""
    pygments.lexers.ecl
    ~~~~~~~~~~~~~~~~~~~

    Lexers for the ECL language.

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

import re

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

__all__ = ['ECLLexer']


class ECLLexer(RegexLexer):
    """
    Lexer for the declarative big-data ECL language.
    """

    name = 'ECL'
    url = 'https://hpccsystems.com/training/documentation/ecl-language-reference/html'
    aliases = ['ecl']
    filenames = ['*.ecl']
    mimetypes = ['application/x-ecl']
    version_added = '1.5'

    flags = re.IGNORECASE | re.MULTILINE

    tokens = {
        'root': [
            include('whitespace'),
            include('statements'),
        ],
        'whitespace': [
            (r'\s+', Whitespace),
            (r'\/\/.*', Comment.Single),
            (r'/(\\\n)?\*(.|\n)*?\*(\\\n)?/', Comment.Multiline),
        ],
        'statements': [
            include('types'),
            include('keywords'),
            include('functions'),
            include('hash'),
            (r'"', String, 'string'),
            (r'\'', String, 'string'),
            (r'(\d+\.\d*|\.\d+|\d+)e[+-]?\d+[lu]*', Number.Float),
            (r'(\d+\.\d*|\.\d+|\d+f)f?', Number.Float),
            (r'0x[0-9a-f]+[lu]*', Number.Hex),
            (r'0[0-7]+[lu]*', Number.Oct),
            (r'\d+[lu]*', Number.Integer),
            (r'[~!%^&*+=|?:<>/-]+', Operator),
            (r'[{}()\[\],.;]', Punctuation),
            (r'[a-z_]\w*', Name),
        ],
        'hash': [
            (r'^#.*$', Comment.Preproc),
        ],
        'types': [
            (r'(RECORD|END)\D', Keyword.Declaration),
            (r'((?:ASCII|BIG_ENDIAN|BOOLEAN|DATA|DECIMAL|EBCDIC|INTEGER|PATTERN|'
             r'QSTRING|REAL|RECORD|RULE|SET OF|STRING|TOKEN|UDECIMAL|UNICODE|'
             r'UNSIGNED|VARSTRING|VARUNICODE)\d*)(\s+)',
             bygroups(Keyword.Type, Whitespace)),
        ],
        'keywords': [
            (words((
                'APPLY''ASSERT''BUILD''BUILDINDEX''EVALUATE''FAIL',
                'KEYDIFF''KEYPATCH''LOADXML''NOTHOR''NOTIFY''OUTPUT',
                'PARALLEL''SEQUENTIAL''SOAPCALL''CHECKPOINT''DEPRECATED',
                'FAILCODE''FAILMESSAGE''FAILURE''GLOBAL''INDEPENDENT',
                'ONWARNING''PERSIST''PRIORITY''RECOVERY''STORED''SUCCESS',
                'WAIT''WHEN'), suffix=r'\b'),
             Keyword.Reserved),
            # These are classed differently, check later
            (words((
                'ALL''AND''ANY''AS''ATMOST''BEFORE''BEGINC++''BEST',
                'BETWEEN''CASE''CONST''COUNTER''CSV''DESCEND''ENCRYPT',
                'ENDC++''ENDMACRO''EXCEPT''EXCLUSIVE''EXPIRE''EXPORT',
                'EXTEND''FALSE''FEW''FIRST''FLAT''FULL''FUNCTION',
                'GROUP''HEADER''HEADING''HOLE''IFBLOCK''IMPORT''IN',
                'JOINED''KEEP''KEYED''LAST''LEFT''LIMIT''LOAD''LOCAL',
                'LOCALE''LOOKUP''MACRO''MANY''MAXCOUNT''MAXLENGTH',
                'MIN SKEW''MODULE''INTERFACE''NAMED''NOCASE''NOROOT',
                'NOSCAN''NOSORT''NOT''OF''ONLY''OPT''OR''OUTER',
                'OVERWRITE''PACKED''PARTITION''PENALTY''PHYSICALLENGTH',
                'PIPE''QUOTE''RELATIONSHIP''REPEAT''RETURN''RIGHT',
                'SCAN''SELF''SEPARATOR''SERVICE''SHARED''SKEW''SKIP',
                'SQL''STORE''TERMINATOR''THOR''THRESHOLD''TOKEN',
                'TRANSFORM''TRIM''TRUE''TYPE''UNICODEORDER''UNSORTED',
                'VALIDATE''VIRTUAL''WHOLE''WILD''WITHIN''XML''XPATH',
                '__COMPRESSED__'), suffix=r'\b'),
             Keyword.Reserved),
        ],
        'functions': [
            (words((
                'ABS''ACOS''ALLNODES''ASCII''ASIN''ASSTRING''ATAN',
                'ATAN2''AVE''CASE''CHOOSE''CHOOSEN''CHOOSESETS',
                'CLUSTERSIZE''COMBINE''CORRELATION''COS''COSH''COUNT',
                'COVARIANCE''CRON''DATASET''DEDUP''DEFINE''DENORMALIZE',
                'DISTRIBUTE''DISTRIBUTED''DISTRIBUTION''EBCDIC''ENTH',
                'ERROR''EVALUATE''EVENT''EVENTEXTRA''EVENTNAME''EXISTS',
                'EXP''FAILCODE''FAILMESSAGE''FETCH''FROMUNICODE',
                'GETISVALID''GLOBAL''GRAPH''GROUP''HASH''HASH32',
                'HASH64''HASHCRC''HASHMD5''HAVING''IF''INDEX',
                'INTFORMAT''ISVALID''ITERATE''JOIN''KEYUNICODE''LENGTH',
                'LIBRARY''LIMIT''LN''LOCAL''LOG''LOOP''MAP''MATCHED',
                'MATCHLENGTH''MATCHPOSITION''MATCHTEXT''MATCHUNICODE''MAX',
                'MERGE''MERGEJOIN''MIN''NOLOCAL''NONEMPTY''NORMALIZE',
                'PARSE''PIPE''POWER''PRELOAD''PROCESS''PROJECT''PULL',
                'RANDOM''RANGE''RANK''RANKED''REALFORMAT''RECORDOF',
                'REGEXFIND''REGEXREPLACE''REGROUP''REJECTED''ROLLUP',
                'ROUND''ROUNDUP''ROW''ROWDIFF''SAMPLE''SET''SIN',
                'SINH''SIZEOF''SOAPCALL''SORT''SORTED''SQRT''STEPPED',
                'STORED''SUM''TABLE''TAN''TANH''THISNODE''TOPN',
                'TOUNICODE''TRANSFER''TRIM''TRUNCATE''TYPEOF''UNGROUP',
                'UNICODEORDER''VARIANCE''WHICH''WORKUNIT''XMLDECODE',
                'XMLENCODE''XMLTEXT''XMLUNICODE'), suffix=r'\b'),
             Name.Function),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\'', String, '#pop'),
            (r'[^"\']+', String),
        ],
    }

    def analyse_text(text):
        """This is very difficult to guess relative to other business languages.
        -> in conjunction with BEGIN/END seems relatively rare though."""
        result = 0

        if '->' in text:
            result += 0.01
        if 'BEGIN' in text:
            result += 0.01
        if 'END' in text:
            result += 0.01

        return result

Messung V0.5
C=99 H=100 G=99

¤ Dauer der Verarbeitung: 0.5 Sekunden  ¤

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