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"""
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
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