100 lines
2.4 KiB
JavaScript
100 lines
2.4 KiB
JavaScript
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// Thanks to: https://github.com/prometheus-community/monaco-promql/blob/master/src/promql/promql.ts
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// As well as: https://kausal.co/blog/slate-prism-add-new-syntax-promql/
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(function (Prism) {
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// PromQL Aggregation Operators
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// (https://prometheus.io/docs/prometheus/latest/querying/operators/#aggregation-operators)
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var aggregations = [
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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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// PromQL vector matching + the by and without clauses
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// (https://prometheus.io/docs/prometheus/latest/querying/operators/#vector-matching)
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var vectorMatching = [
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'on',
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'ignoring',
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'group_right',
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'group_left',
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'by',
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'without',
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];
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// PromQL offset modifier
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// (https://prometheus.io/docs/prometheus/latest/querying/basics/#offset-modifier)
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var offsetModifier = ['offset'];
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var keywords = aggregations.concat(vectorMatching, offsetModifier);
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Prism.languages.promql = {
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'comment': {
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pattern: /(^[ \t]*)#.*/m,
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lookbehind: true
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},
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'vector-match': {
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// Match the comma-separated label lists inside vector matching:
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pattern: new RegExp('((?:' + vectorMatching.join('|') + ')\\s*)\\([^)]*\\)'),
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lookbehind: true,
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inside: {
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'label-key': {
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pattern: /\b[^,]+\b/,
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alias: 'attr-name',
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},
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'punctuation': /[(),]/
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},
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},
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'context-labels': {
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pattern: /\{[^{}]*\}/,
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inside: {
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'label-key': {
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pattern: /\b[a-z_]\w*(?=\s*(?:=|![=~]))/,
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alias: 'attr-name',
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},
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'label-value': {
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pattern: /(["'`])(?:\\[\s\S]|(?!\1)[^\\])*\1/,
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greedy: true,
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alias: 'attr-value',
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},
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'punctuation': /\{|\}|=~?|![=~]|,/,
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},
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},
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'context-range': [
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{
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pattern: /\[[\w\s:]+\]/, // [1m]
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inside: {
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'punctuation': /\[|\]|:/,
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'range-duration': {
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pattern: /\b(?:\d+(?:[smhdwy]|ms))+\b/i,
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alias: 'number',
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},
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},
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},
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{
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pattern: /(\boffset\s+)\w+/, // offset 1m
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lookbehind: true,
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inside: {
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'range-duration': {
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pattern: /\b(?:\d+(?:[smhdwy]|ms))+\b/i,
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alias: 'number',
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},
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},
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},
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],
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'keyword': new RegExp('\\b(?:' + keywords.join('|') + ')\\b', 'i'),
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'function': /\b[a-z_]\w*(?=\s*\()/i,
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'number': /[-+]?(?:(?:\b\d+(?:\.\d+)?|\B\.\d+)(?:e[-+]?\d+)?\b|\b(?:0x[0-9a-f]+|nan|inf)\b)/i,
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'operator': /[\^*/%+-]|==|!=|<=|<|>=|>|\b(?:and|or|unless)\b/i,
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'punctuation': /[{};()`,.[\]]/,
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};
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}(Prism));
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