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parse-ingredient
Advanced tools
Recipe ingredient parser with support for mixed numbers and vulgar fractions
Parses a string, which can include mixed numbers or vulgar fractions (thanks to numeric-quantity), into an array of recipe ingredient objects with the following signature:
interface Ingredient {
/**
* The primary quantity (the lower quantity in a range, if applicable)
*/
quantity: number | null;
/**
* The secondary quantity (the upper quantity in a range, or `null` if not applicable)
*/
quantity2: number | null;
/**
* The unit of measure identifier (see `unitsOfMeasure`)
*/
unitOfMeasureID: string | null;
/**
* The unit of measure
*/
unitOfMeasure: string | null;
/**
* The description
*/
description: string;
/**
* Whether the "ingredient" is actually a group header, e.g. "For icing:"
*/
isGroupHeader: boolean;
}
For the isGroupHeader
attribute to be true
, the ingredient string must not start with a number, and must either start with 'For '
or end with ':'
.
For a complimentary library that handles the inverse operation, displaying numeric values as imperial measurements (e.g. '1 1/2'
instead of 1.5
), see format-quantity.
If present (i.e. not null
), the unitOfMeasureID
property corresponds to a key from the exported unitsOfMeasure
object which defines short, plural, and other alternate versions of known units of measure. To extend the list of units, use the additionalUOMs
option and/or or submit a pull request to add new units to this library's default list.
# npm
npm i parse-ingredient
# yarn
yarn add parse-ingredient
In the browser, all exports including the parseIngredient
function are available on the global object ParseIngredient
.
<script src="https://unpkg.com/parse-ingredient"></script>
<script>
console.log(ParseIngredient.parseIngredient('1 1/2 cups sugar'));
// [
// {
// quantity: 1.5,
// quantity2: null,
// unitOfMeasure: 'cups',
// unitOfMeasureID: 'cup',
// description: 'sugar',
// isGroupHeader: false,
// }
// ]
</script>
import { parseIngredient } from 'parse-ingredient';
console.log(parseIngredient('1-2 pears'));
// [
// {
// quantity: 1,
// quantity2: 2,
// unitOfMeasure: null,
// unitOfMeasureID: null,
// description: 'pears',
// isGroupHeader: false,
// }
// ]
console.log(
parseIngredient(
`2/3 cup flour
1 tsp baking powder`
)
);
// [
// {
// quantity: 0.667,
// quantity2: null,
// unitOfMeasure: 'cup',
// unitOfMeasureID: 'cup',
// description: 'flour',
// isGroupHeader: false,
// },
// {
// quantity: 1,
// quantity2: null,
// unitOfMeasure: 'tsp',
// unitOfMeasureID: 'teaspoon',
// description: 'baking powder',
// isGroupHeader: false,
// },
// ]
console.log(parseIngredient('For cake:'));
// [
// {
// quantity: null,
// quantity2: null,
// unitOfMeasure: null,
// unitOfMeasureID: null,
// description: 'For cake:',
// isGroupHeader: true,
// }
// ]
normalizeUOM
Pass true
to convert units of measure to their long, singular form, e.g. "ml" becomes "milliliter" and "cups" becomes "cup". This can help normalize the units of measure for processing. In most cases, this option will make unitOfMeasure
equivalent to unitOfMeasureID
.
Example:
console.log(parseIngredient('1 c sugar', { normalizeUOM: true }));
// [
// {
// quantity: 1,
// quantity2: null,
// unitOfMeasure: 'cup',
// unitOfMeasureID: 'cup',
// description: 'sugar',
// isGroupHeader: false,
// }
// ]
additionalUOMs
Pass an object that matches the format of the exported unitsOfMeasure
object. Keys that match any in the exported object will be used instead of the default, and any others will be added to the list of known units of measure when parsing ingredients.
Example:
console.log(
parseIngredient('2 buckets of widgets', {
additionalUOMs: {
bucket: {
short: 'bkt',
plural: 'buckets',
versions: ['bk'],
},
},
})
);
// [
// {
// quantity: 2,
// quantity2: null,
// unitOfMeasureID: 'bucket',
// unitOfMeasure: 'buckets',
// description: 'widgets',
// isGroupHeader: false,
// },
// ]
allowLeadingOf
When true
, ingredient descriptions that start with "of " will not be modified. (By default, a leading "of " will be removed from all descriptions.)
Example:
console.log(parseIngredient('1 cup of sugar', { allowLeadingOf: true }));
// [
// {
// quantity: 1,
// quantity2: null,
// unitOfMeasure: 'cup',
// unitOfMeasureID: 'cup',
// description: 'of sugar',
// isGroupHeader: false,
// }
// ]
Name | Type | Description |
---|---|---|
unitsOfMeasure | object | Information about natively-supported units of measure (see UnitOfMeasure interface) |
ParseIngredientOptions | interface | Shape of the second parameter to the parseIngredient function |
Ingredient | interface | Interface describing the shape of each element in the returned ingredient array |
UnitOfMeasure | interface | Interface including short, plural, and alternate forms of a unit of measure |
UnitOfMeasureDefinitions | type | Object with keys representing a unitOfMeasureID and values of type UnitOfMeasure |
Thanks goes to these wonderful people (emoji key):
Jake Boone 💻 📖 💡 🚧 ⚠️ | Stefan van der Weide 💻 ⚠️ |
This project follows the all-contributors specification. Contributions of any kind welcome!
FAQs
Recipe ingredient parser with support for mixed numbers and vulgar fractions
The npm package parse-ingredient receives a total of 333 weekly downloads. As such, parse-ingredient popularity was classified as not popular.
We found that parse-ingredient demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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