Function createUtilities

packages/tailwindcss/src/utilities.ts:294–6067

(theme: Theme)

const LEGACY_NUMERIC_KEY = /(\d+)_(\d+)/g

export function createUtilities(theme: Theme) {
  let utilities = new Utilities()

  /**
   * Register list of suggestions for a class
   */
  function suggest(classRoot: string, defns: () => SuggestionDefinition[]) {
    function* resolve(themeKeys: ThemeKey[]) {
      for (let value of theme.keysInNamespaces(themeKeys)) {
        yield value.replace(LEGACY_NUMERIC_KEY, (_, a, b) => {
          return `${a}.${b}`
        })
      }
    }

    let suggestedFractions = [
      '1/2',
      '1/3',
      '2/3',
      '1/4',
      '2/4',
      '3/4',
      '1/5',
      '2/5',
      '3/5',
      '4/5',
      '1/6',
      '2/6',
      '3/6',
      '4/6',
      '5/6',
      '1/12',
      '2/12',
      '3/12',
      '4/12',
      '5/12',
      '6/12',
      '7/12',
      '8/12',
      '9/12',
      '10/12',
      '11/12',
    ]

    utilities.suggest(classRoot, () => {
      let groups: SuggestionGroup[] = []

      for (let defn of defns()) {
        if (typeof defn === 'string') {
          groups.push({ values: [defn], modifiers: [] })
          continue
        }

        let values: (string | null)[] = [
          ...(defn.values ?? []),
          ...resolve(defn.valueThemeKeys ?? []),
        ]