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recipeParser.js
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recipeParser.js
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// @ts-check
const getTitle = (file = "") => {
const titleMatcher = /# (.*)/gm;
const [title] = file.match(titleMatcher);
return title.replace("#", "").trim();
};
const floatRegex = /([0-9]*[.])?[0-9]+/;
const parseAmount = (amount = "") => {
if (!amount) {
return { amount: "", scale: "" };
}
const [parsedNumber = ""] = amount.match(floatRegex);
const scale = amount.replace(parsedNumber, "");
return { amount: parsedNumber, scale };
};
const getIngredients = (file = "") => {
const ingredientsMatcher = /- (.*)/gm;
const ingredients = file.match(ingredientsMatcher);
return ingredients
? ingredients
.filter((maybe) => Boolean(maybe))
.map((ingredient) => ingredient.replace("-", "").trim())
.map((ingredient) => ingredient.replace("\t", " "))
.map((ingredient) => {
if (ingredient.match(/^\d+/)) {
const [amount, ...name] = ingredient.split(" ");
return {
...parseAmount(amount),
name: name.join(),
};
} else {
return {
name: ingredient,
scale: "",
amount: "",
};
}
})
: [];
};
const getDescription = (file = "") => {
const descriptionMatcher = /## Zubereitung/gm;
return file.match(descriptionMatcher)
? file.split(descriptionMatcher).pop().trim()
: "";
};
const getTags = (file = "") => {
const tagMatcher = /## Tags (.*)/gm;
const [rawtags] = file.match(tagMatcher) || [];
const tags = rawtags
? rawtags
.replace("## Tags", "")
.trim()
.split(",")
.map((tag) => tag.trim())
: [];
return tags;
};
const parseMdToJson = (file = "") => {
if (!file) return null;
return {
title: getTitle(file),
ingredients: getIngredients(file),
description: getDescription(file),
tags: getTags(file),
};
};
module.exports = { parseMdToJson, parseAmount };