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lib/pygments/lexers/ecl.py
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144
lib/pygments/lexers/ecl.py
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"""
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pygments.lexers.ecl
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~~~~~~~~~~~~~~~~~~~
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Lexers for the ECL language.
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:copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, include, bygroups, words
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from pygments.token import Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Whitespace
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__all__ = ['ECLLexer']
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class ECLLexer(RegexLexer):
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"""
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Lexer for the declarative big-data ECL language.
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"""
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name = 'ECL'
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url = 'https://hpccsystems.com/training/documentation/ecl-language-reference/html'
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aliases = ['ecl']
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filenames = ['*.ecl']
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mimetypes = ['application/x-ecl']
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version_added = '1.5'
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flags = re.IGNORECASE | re.MULTILINE
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tokens = {
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'root': [
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include('whitespace'),
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include('statements'),
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],
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'whitespace': [
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(r'\s+', Whitespace),
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(r'\/\/.*', Comment.Single),
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(r'/(\\\n)?\*(.|\n)*?\*(\\\n)?/', Comment.Multiline),
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],
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'statements': [
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include('types'),
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include('keywords'),
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include('functions'),
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include('hash'),
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(r'"', String, 'string'),
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(r'\'', String, 'string'),
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(r'(\d+\.\d*|\.\d+|\d+)e[+-]?\d+[lu]*', Number.Float),
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(r'(\d+\.\d*|\.\d+|\d+f)f?', Number.Float),
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(r'0x[0-9a-f]+[lu]*', Number.Hex),
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(r'0[0-7]+[lu]*', Number.Oct),
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(r'\d+[lu]*', Number.Integer),
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(r'[~!%^&*+=|?:<>/-]+', Operator),
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(r'[{}()\[\],.;]', Punctuation),
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(r'[a-z_]\w*', Name),
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],
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'hash': [
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(r'^#.*$', Comment.Preproc),
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],
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'types': [
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(r'(RECORD|END)\D', Keyword.Declaration),
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(r'((?:ASCII|BIG_ENDIAN|BOOLEAN|DATA|DECIMAL|EBCDIC|INTEGER|PATTERN|'
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r'QSTRING|REAL|RECORD|RULE|SET OF|STRING|TOKEN|UDECIMAL|UNICODE|'
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r'UNSIGNED|VARSTRING|VARUNICODE)\d*)(\s+)',
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bygroups(Keyword.Type, Whitespace)),
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],
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'keywords': [
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(words((
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'APPLY', 'ASSERT', 'BUILD', 'BUILDINDEX', 'EVALUATE', 'FAIL',
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'KEYDIFF', 'KEYPATCH', 'LOADXML', 'NOTHOR', 'NOTIFY', 'OUTPUT',
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'PARALLEL', 'SEQUENTIAL', 'SOAPCALL', 'CHECKPOINT', 'DEPRECATED',
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'FAILCODE', 'FAILMESSAGE', 'FAILURE', 'GLOBAL', 'INDEPENDENT',
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'ONWARNING', 'PERSIST', 'PRIORITY', 'RECOVERY', 'STORED', 'SUCCESS',
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'WAIT', 'WHEN'), suffix=r'\b'),
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Keyword.Reserved),
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# These are classed differently, check later
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(words((
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'ALL', 'AND', 'ANY', 'AS', 'ATMOST', 'BEFORE', 'BEGINC++', 'BEST',
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'BETWEEN', 'CASE', 'CONST', 'COUNTER', 'CSV', 'DESCEND', 'ENCRYPT',
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'ENDC++', 'ENDMACRO', 'EXCEPT', 'EXCLUSIVE', 'EXPIRE', 'EXPORT',
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'EXTEND', 'FALSE', 'FEW', 'FIRST', 'FLAT', 'FULL', 'FUNCTION',
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'GROUP', 'HEADER', 'HEADING', 'HOLE', 'IFBLOCK', 'IMPORT', 'IN',
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'JOINED', 'KEEP', 'KEYED', 'LAST', 'LEFT', 'LIMIT', 'LOAD', 'LOCAL',
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'LOCALE', 'LOOKUP', 'MACRO', 'MANY', 'MAXCOUNT', 'MAXLENGTH',
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'MIN SKEW', 'MODULE', 'INTERFACE', 'NAMED', 'NOCASE', 'NOROOT',
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'NOSCAN', 'NOSORT', 'NOT', 'OF', 'ONLY', 'OPT', 'OR', 'OUTER',
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'OVERWRITE', 'PACKED', 'PARTITION', 'PENALTY', 'PHYSICALLENGTH',
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'PIPE', 'QUOTE', 'RELATIONSHIP', 'REPEAT', 'RETURN', 'RIGHT',
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'SCAN', 'SELF', 'SEPARATOR', 'SERVICE', 'SHARED', 'SKEW', 'SKIP',
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'SQL', 'STORE', 'TERMINATOR', 'THOR', 'THRESHOLD', 'TOKEN',
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'TRANSFORM', 'TRIM', 'TRUE', 'TYPE', 'UNICODEORDER', 'UNSORTED',
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'VALIDATE', 'VIRTUAL', 'WHOLE', 'WILD', 'WITHIN', 'XML', 'XPATH',
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'__COMPRESSED__'), suffix=r'\b'),
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Keyword.Reserved),
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],
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'functions': [
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(words((
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'ABS', 'ACOS', 'ALLNODES', 'ASCII', 'ASIN', 'ASSTRING', 'ATAN',
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'ATAN2', 'AVE', 'CASE', 'CHOOSE', 'CHOOSEN', 'CHOOSESETS',
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'CLUSTERSIZE', 'COMBINE', 'CORRELATION', 'COS', 'COSH', 'COUNT',
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'COVARIANCE', 'CRON', 'DATASET', 'DEDUP', 'DEFINE', 'DENORMALIZE',
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'DISTRIBUTE', 'DISTRIBUTED', 'DISTRIBUTION', 'EBCDIC', 'ENTH',
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'ERROR', 'EVALUATE', 'EVENT', 'EVENTEXTRA', 'EVENTNAME', 'EXISTS',
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'EXP', 'FAILCODE', 'FAILMESSAGE', 'FETCH', 'FROMUNICODE',
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'GETISVALID', 'GLOBAL', 'GRAPH', 'GROUP', 'HASH', 'HASH32',
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'HASH64', 'HASHCRC', 'HASHMD5', 'HAVING', 'IF', 'INDEX',
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'INTFORMAT', 'ISVALID', 'ITERATE', 'JOIN', 'KEYUNICODE', 'LENGTH',
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'LIBRARY', 'LIMIT', 'LN', 'LOCAL', 'LOG', 'LOOP', 'MAP', 'MATCHED',
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'MATCHLENGTH', 'MATCHPOSITION', 'MATCHTEXT', 'MATCHUNICODE', 'MAX',
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'MERGE', 'MERGEJOIN', 'MIN', 'NOLOCAL', 'NONEMPTY', 'NORMALIZE',
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'PARSE', 'PIPE', 'POWER', 'PRELOAD', 'PROCESS', 'PROJECT', 'PULL',
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'RANDOM', 'RANGE', 'RANK', 'RANKED', 'REALFORMAT', 'RECORDOF',
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'REGEXFIND', 'REGEXREPLACE', 'REGROUP', 'REJECTED', 'ROLLUP',
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'ROUND', 'ROUNDUP', 'ROW', 'ROWDIFF', 'SAMPLE', 'SET', 'SIN',
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'SINH', 'SIZEOF', 'SOAPCALL', 'SORT', 'SORTED', 'SQRT', 'STEPPED',
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'STORED', 'SUM', 'TABLE', 'TAN', 'TANH', 'THISNODE', 'TOPN',
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'TOUNICODE', 'TRANSFER', 'TRIM', 'TRUNCATE', 'TYPEOF', 'UNGROUP',
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'UNICODEORDER', 'VARIANCE', 'WHICH', 'WORKUNIT', 'XMLDECODE',
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'XMLENCODE', 'XMLTEXT', 'XMLUNICODE'), suffix=r'\b'),
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Name.Function),
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],
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'string': [
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(r'"', String, '#pop'),
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(r'\'', String, '#pop'),
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(r'[^"\']+', String),
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],
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}
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def analyse_text(text):
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"""This is very difficult to guess relative to other business languages.
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-> in conjunction with BEGIN/END seems relatively rare though."""
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result = 0
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if '->' in text:
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result += 0.01
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if 'BEGIN' in text:
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result += 0.01
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if 'END' in text:
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result += 0.01
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return result
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