kmx.io/prism.js/components/prism-promql.js

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• Hash : e2630d89
  Author :
  Date : 2021-09-26T11:52:18
  

  ESLint: Added `regexp/sort-alternatives` rule (#3093)

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• components/prism-promql.js

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

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