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- """
- pygments.lexers.kusto
- ~~~~~~~~~~~~~~~~~~~~~
- Lexers for Kusto Query Language (KQL).
- :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
- :license: BSD, see LICENSE for details.
- """
- from pygments.lexer import RegexLexer, words
- from pygments.token import (Comment, Keyword, Name, Number, Punctuation,
- String, Whitespace)
- __all__ = ["KustoLexer"]
- # Although these all seem to be keywords
- # https://github.com/microsoft/Kusto-Query-Language/blob/master/src/Kusto.Language/Syntax/SyntaxFacts.cs
- # it appears that only the ones with tags here
- # https://github.com/microsoft/Kusto-Query-Language/blob/master/src/Kusto.Language/Parser/QueryGrammar.cs
- # are highlighted in the Azure portal log query editor.
- KUSTO_KEYWORDS = [
- 'and', 'as', 'between', 'by', 'consume', 'contains', 'containscs', 'count',
- 'distinct', 'evaluate', 'extend', 'facet', 'filter', 'find', 'fork',
- 'getschema', 'has', 'invoke', 'join', 'limit', 'lookup', 'make-series',
- 'matches regex', 'mv-apply', 'mv-expand', 'notcontains', 'notcontainscs',
- '!contains', '!has', '!startswith', 'on', 'or', 'order', 'parse', 'parse-where',
- 'parse-kv', 'partition', 'print', 'project', 'project-away', 'project-keep',
- 'project-rename', 'project-reorder', 'range', 'reduce', 'regex', 'render',
- 'sample', 'sample-distinct', 'scan', 'search', 'serialize', 'sort', 'startswith',
- 'summarize', 'take', 'top', 'top-hitters', 'top-nested', 'typeof', 'union',
- 'where', 'bool', 'date', 'datetime', 'int', 'long', 'real', 'string', 'time'
- ]
- # From
- # https://github.com/microsoft/Kusto-Query-Language/blob/master/src/Kusto.Language/Syntax/SyntaxFacts.cs
- KUSTO_PUNCTUATION = [
- "(", ")", "[", "]", "{", "}", "|", "<|", "+", "-", "*", "/",
- "%", ".." "!", "<", "<=", ">", ">=", "=", "==", "!=", "<>",
- ":", ";", ",", "=~", "!~", "?", "=>",
- ]
- class KustoLexer(RegexLexer):
- """For Kusto Query Language source code.
- """
- name = "Kusto"
- aliases = ["kql", "kusto"]
- filenames = ["*.kql", "*.kusto", ".csl"]
- url = "https://learn.microsoft.com/en-us/azure/data-explorer/kusto/query"
- version_added = '2.17'
- tokens = {
- "root": [
- (r"\s+", Whitespace),
- (words(KUSTO_KEYWORDS, suffix=r"\b"), Keyword),
- (r"//.*", Comment),
- (words(KUSTO_PUNCTUATION), Punctuation),
- (r"[^\W\d]\w*", Name),
- # Numbers can take the form 1, .1, 1., 1.1, 1.1111, etc.
- (r"\d+[.]\d*|[.]\d+", Number.Float),
- (r"\d+", Number.Integer),
- (r"'", String, "single_string"),
- (r'"', String, "double_string"),
- (r"@'", String, "single_verbatim"),
- (r'@"', String, "double_verbatim"),
- (r"```", String, "multi_string"),
- ],
- "single_string": [
- (r"'", String, "#pop"),
- (r"\\.", String.Escape),
- (r"[^'\\]+", String),
- ],
- "double_string": [
- (r'"', String, "#pop"),
- (r"\\.", String.Escape),
- (r'[^"\\]+', String),
- ],
- "single_verbatim": [
- (r"'", String, "#pop"),
- (r"[^']+", String),
- ],
- "double_verbatim": [
- (r'"', String, "#pop"),
- (r'[^"]+', String),
- ],
- "multi_string": [
- (r"[^`]+", String),
- (r"```", String, "#pop"),
- (r"`", String),
- ],
- }
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