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""" |
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pygments.lexers.promql |
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~~~~~~~~~~~~~~~~~~~~~~ |
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Lexer for Prometheus Query 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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from pygments.lexer import RegexLexer, bygroups, default, words |
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from pygments.token import Comment, Keyword, Name, Number, Operator, \ |
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Punctuation, String, Whitespace |
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__all__ = ["PromQLLexer"] |
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class PromQLLexer(RegexLexer): |
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""" |
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For PromQL queries. |
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For details about the grammar see: |
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https://github.com/prometheus/prometheus/tree/master/promql/parser |
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.. versionadded: 2.7 |
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""" |
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name = "PromQL" |
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url = 'https://prometheus.io/docs/prometheus/latest/querying/basics/' |
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aliases = ["promql"] |
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filenames = ["*.promql"] |
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version_added = '' |
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base_keywords = ( |
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words( |
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( |
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"bool", |
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"by", |
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"group_left", |
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"group_right", |
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"ignoring", |
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"offset", |
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"on", |
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"without", |
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), |
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suffix=r"\b", |
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), |
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Keyword, |
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) |
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aggregator_keywords = ( |
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words( |
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( |
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"sum", |
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"min", |
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"max", |
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"avg", |
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"group", |
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"stddev", |
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"stdvar", |
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"count", |
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"count_values", |
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"bottomk", |
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"topk", |
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"quantile", |
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), |
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suffix=r"\b", |
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), |
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Keyword, |
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) |
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function_keywords = ( |
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words( |
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( |
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"abs", |
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"absent", |
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"absent_over_time", |
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"avg_over_time", |
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"ceil", |
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"changes", |
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"clamp_max", |
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"clamp_min", |
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"count_over_time", |
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"day_of_month", |
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"day_of_week", |
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"days_in_month", |
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"delta", |
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"deriv", |
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"exp", |
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"floor", |
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"histogram_quantile", |
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"holt_winters", |
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"hour", |
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"idelta", |
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"increase", |
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"irate", |
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"label_join", |
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"label_replace", |
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"ln", |
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"log10", |
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"log2", |
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"max_over_time", |
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"min_over_time", |
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"minute", |
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"month", |
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"predict_linear", |
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"quantile_over_time", |
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"rate", |
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"resets", |
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"round", |
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"scalar", |
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"sort", |
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"sort_desc", |
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"sqrt", |
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"stddev_over_time", |
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"stdvar_over_time", |
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"sum_over_time", |
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"time", |
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"timestamp", |
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"vector", |
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"year", |
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), |
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suffix=r"\b", |
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), |
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Keyword.Reserved, |
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) |
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tokens = { |
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"root": [ |
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(r"\n", Whitespace), |
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(r"\s+", Whitespace), |
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(r",", Punctuation), |
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base_keywords, |
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aggregator_keywords, |
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function_keywords, |
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(r"[1-9][0-9]*[smhdwy]", String), |
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(r"-?[0-9]+\.[0-9]+", Number.Float), |
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(r"-?[0-9]+", Number.Integer), |
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(r"#.*?$", Comment.Single), |
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(r"(\+|\-|\*|\/|\%|\^)", Operator), |
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(r"==|!=|>=|<=|<|>", Operator), |
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(r"and|or|unless", Operator.Word), |
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(r"[_a-zA-Z][a-zA-Z0-9_]+", Name.Variable), |
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(r'(["\'])(.*?)(["\'])', bygroups(Punctuation, String, Punctuation)), |
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(r"\(", Operator, "function"), |
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(r"\)", Operator), |
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(r"\{", Punctuation, "labels"), |
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(r"\[", Punctuation, "range"), |
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], |
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"labels": [ |
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(r"\}", Punctuation, "#pop"), |
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(r"\n", Whitespace), |
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(r"\s+", Whitespace), |
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(r",", Punctuation), |
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(r'([_a-zA-Z][a-zA-Z0-9_]*?)(\s*?)(=~|!=|=|!~)(\s*?)("|\')(.*?)("|\')', |
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bygroups(Name.Label, Whitespace, Operator, Whitespace, |
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Punctuation, String, Punctuation)), |
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], |
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"range": [ |
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(r"\]", Punctuation, "#pop"), |
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(r"[1-9][0-9]*[smhdwy]", String), |
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], |
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"function": [ |
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(r"\)", Operator, "#pop"), |
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(r"\(", Operator, "#push"), |
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default("#pop"), |
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], |
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} |
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