1
0
Fork 0
mirror of https://github.com/mealie-recipes/mealie.git synced 2025-07-22 14:49:40 +02:00
mealie/frontend/composables/recipes/use-fraction.ts

77 lines
1.5 KiB
TypeScript
Raw Normal View History

/* frac.js (C) 2012-present SheetJS -- http://sheetjs.com */
/* https://developer.aliyun.com/mirror/npm/package/frac/v/0.3.0 Apache license */
Use composition API for more components, enable more type checking (#914) * Activate more linting rules from eslint and typescript * Properly add VForm as type information * Fix usage of native types * Fix more linting issues * Rename vuetify types file, add VTooltip * Fix some more typing problems * Use composition API for more components * Convert RecipeRating * Convert RecipeNutrition * Convert more components to composition API * Fix globals plugin for type checking * Add missing icon types * Fix vuetify types in Nuxt context * Use composition API for RecipeActionMenu * Convert error.vue to composition API * Convert RecipeContextMenu to composition API * Use more composition API and type checking in recipe/create * Convert AppButtonUpload to composition API * Fix some type checking in RecipeContextMenu * Remove unused components BaseAutoForm and BaseColorPicker * Convert RecipeCategoryTagDialog to composition API * Convert RecipeCardSection to composition API * Convert RecipeCategoryTagSelector to composition API * Properly import vuetify type definitions * Convert BaseButton to composition API * Convert AutoForm to composition API * Remove unused requests API file * Remove static routes from recipe API * Fix more type errors * Convert AppHeader to composition API, fixing some search bar focus problems * Convert RecipeDialogSearch to composition API * Update API types from pydantic models, handle undefined values * Improve more typing problems * Add types to other plugins * Properly type the CRUD API access * Fix typing of static image routes * Fix more typing stuff * Fix some more typing problems * Turn off more rules
2022-01-09 07:15:23 +01:00
function frac(x: number, D: number, mixed: boolean) {
let n1 = Math.floor(x);
let d1 = 1;
let n2 = n1 + 1;
let d2 = 1;
if (x !== n1)
while (d1 <= D && d2 <= D) {
const m = (n1 + n2) / (d1 + d2);
if (x === m) {
if (d1 + d2 <= D) {
d1 += d2;
n1 += n2;
d2 = D + 1;
} else if (d1 > d2) d2 = D + 1;
else d1 = D + 1;
break;
} else if (x < m) {
n2 = n1 + n2;
d2 = d1 + d2;
} else {
n1 = n1 + n2;
d1 = d1 + d2;
}
}
if (d1 > D) {
d1 = d2;
n1 = n2;
}
if (!mixed) return [0, n1, d1];
const q = Math.floor(n1 / d1);
return [q, n1 - q * d1, d1];
}
Use composition API for more components, enable more type checking (#914) * Activate more linting rules from eslint and typescript * Properly add VForm as type information * Fix usage of native types * Fix more linting issues * Rename vuetify types file, add VTooltip * Fix some more typing problems * Use composition API for more components * Convert RecipeRating * Convert RecipeNutrition * Convert more components to composition API * Fix globals plugin for type checking * Add missing icon types * Fix vuetify types in Nuxt context * Use composition API for RecipeActionMenu * Convert error.vue to composition API * Convert RecipeContextMenu to composition API * Use more composition API and type checking in recipe/create * Convert AppButtonUpload to composition API * Fix some type checking in RecipeContextMenu * Remove unused components BaseAutoForm and BaseColorPicker * Convert RecipeCategoryTagDialog to composition API * Convert RecipeCardSection to composition API * Convert RecipeCategoryTagSelector to composition API * Properly import vuetify type definitions * Convert BaseButton to composition API * Convert AutoForm to composition API * Remove unused requests API file * Remove static routes from recipe API * Fix more type errors * Convert AppHeader to composition API, fixing some search bar focus problems * Convert RecipeDialogSearch to composition API * Update API types from pydantic models, handle undefined values * Improve more typing problems * Add types to other plugins * Properly type the CRUD API access * Fix typing of static image routes * Fix more typing stuff * Fix some more typing problems * Turn off more rules
2022-01-09 07:15:23 +01:00
function cont(x: number, D: number, mixed: boolean) {
const sgn = x < 0 ? -1 : 1;
let B = x * sgn;
let P_2 = 0;
let P_1 = 1;
let P = 0;
let Q_2 = 1;
let Q_1 = 0;
let Q = 0;
let A = Math.floor(B);
while (Q_1 < D) {
A = Math.floor(B);
P = A * P_1 + P_2;
Q = A * Q_1 + Q_2;
if (B - A < 0.00000005) break;
B = 1 / (B - A);
P_2 = P_1;
P_1 = P;
Q_2 = Q_1;
Q_1 = Q;
}
if (Q > D) {
if (Q_1 > D) {
Q = Q_2;
P = P_2;
} else {
Q = Q_1;
P = P_1;
}
}
if (!mixed) return [0, sgn * P, Q];
const q = Math.floor((sgn * P) / Q);
return [q, sgn * P - q * Q, Q];
}
export const useFraction = function () {
return {
frac,
cont,
};
};