dmn-js-decision-table/lib/features/simple-time-edit/Utils.js

A decision table view for dmn-js

const ISO_TIME_REGEX = /^(?:\d\d:){2}\d\d(?:Z|(?:[@+-][^")]+))?$/;
const BETWEEN_TIME_REGEX = /^\[time\("([^"]*)"\)..time\("([^"]*)"\)\]$/;
const BEFORE_AFTER_TIME_REGEX = /^(<|>)\s*time\("([^"]*)"\)$/;
const EXACT_TIME_REGEX = /^time\("([^"]*)"\)$/;
const EXACT = 'exact',
  BEFORE = 'before',
  AFTER = 'after',
  BETWEEN = 'between';
export function validateISOString(string) {
  if (!ISO_TIME_REGEX.test(string.trim())) {
    return 'Time must match pattern hh:mm:ss[time zone]';
  }
}
export function getTimeString(type, times) {
  if (type === EXACT) {
    return `time("${times[0]}")`;
  } else if (type === BEFORE) {
    return `< time("${times[0]}")`;
  } else if (type === AFTER) {
    return `> time("${times[0]}")`;
  } else if (type === BETWEEN) {
    return `[time("${times[0]}")..time("${times[1]}")]`;
  }
}
export function getSampleTime() {
  const time = new Date();
  return time.toISOString().slice(11, -5) + 'Z';
}
export function parseString(string) {
  // emtpy
  if (!string || string.trim() === '') {
    return {
      type: 'exact',
      time: ''
    };
  }

  // between
  let matches = string.match(BETWEEN_TIME_REGEX);
  if (matches) {
    return {
      type: 'between',
      times: [matches[1], matches[2]]
    };
  }

  // before or after
  matches = string.match(BEFORE_AFTER_TIME_REGEX);
  if (matches) {
    return {
      type: matches[1] === '<' ? 'before' : 'after',
      time: matches[2]
    };
  }

  // exact
  matches = string.match(EXACT_TIME_REGEX);
  if (matches) {
    return {
      type: 'exact',
      time: matches[1]
    };
  }
}
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