TypeScript kbn.regexEscape函數代碼示例

export function containsVariable(...args: any[]) {
  var variableName = args[args.length - 1];
  var str = args[0] || '';

  for (var i = 1; i < args.length - 1; i++) {
    str += ' ' + args[i] || '';
  }

  variableName = kbn.regexEscape(variableName);
  var findVarRegex = new RegExp('\\$(' + variableName + ')(?:\\W|$)|\\[\\[(' + variableName + ')\\]\\]', 'g');
  var match = findVarRegex.exec(str);
  return match !== null;
}

  interpolateQueryStr(value, variable, defaultFormatFn) {
    // if no multi or include all do not regexEscape
    if (!variable.multi && !variable.includeAll) {
      return value;
    }

    if (typeof value === 'string') {
      return kbn.regexEscape(value);
    }

    var escapedValues = _.map(value, kbn.regexEscape);
    return '(' + escapedValues.join('|') + ')';
  }

  buildExploreQuery(type: string, withKey?: string, withMeasurementFilter?: string) {
    let query;
    let measurement;
    let policy;

    if (type === 'TAG_KEYS') {
      query = 'SHOW TAG KEYS';
      measurement = this.target.measurement;
      policy = this.target.policy;
    } else if (type === 'TAG_VALUES') {
      query = 'SHOW TAG VALUES';
      measurement = this.target.measurement;
      policy = this.target.policy;
    } else if (type === 'MEASUREMENTS') {
      query = 'SHOW MEASUREMENTS';
      if (withMeasurementFilter) {
        query += ' WITH MEASUREMENT =~ /' + kbn.regexEscape(withMeasurementFilter) + '/';
      }
    } else if (type === 'FIELDS') {
      measurement = this.target.measurement;
      policy = this.target.policy;

      if (!measurement.match('^/.*/')) {
        measurement = '"' + measurement + '"';

        if (policy && policy !== 'default') {
          policy = '"' + policy + '"';
          measurement = policy + '.' + measurement;
        }
      }

      return 'SHOW FIELD KEYS FROM ' + measurement;
    } else if (type === 'RETENTION POLICIES') {
      query = 'SHOW RETENTION POLICIES on "' + this.database + '"';
      return query;
    }

    if (measurement) {
      if (!measurement.match('^/.*/') && !measurement.match(/^merge\(.*\)/)) {
        measurement = '"' + measurement + '"';
      }

      if (policy && policy !== 'default') {
        policy = '"' + policy + '"';
        measurement = policy + '.' + measurement;
      }

      query += ' FROM ' + measurement;
    }

    if (withKey) {
      query += ' WITH KEY = "' + withKey + '"';
    }

    if (this.target.tags && this.target.tags.length > 0) {
      const whereConditions = _.reduce(
        this.target.tags,
        (memo, tag) => {
          // do not add a condition for the key we want to explore for
          if (tag.key === withKey) {
            return memo;
          }
          memo.push(renderTagCondition(tag, memo.length));
          return memo;
        },
        []
      );

      if (whereConditions.length > 0) {
        query += ' WHERE ' + whereConditions.join(' ');
      }
    }
    if (type === 'MEASUREMENTS') {
      query += ' LIMIT 100';
      //Solve issue #2524 by limiting the number of measurements returned
      //LIMIT must be after WITH MEASUREMENT and WHERE clauses
      //This also could be used for TAG KEYS and TAG VALUES, if desired
    }
    return query;
  }