--- package/package.json (excerpt) ---
{
"name": "@antv/d3-interpolate",
"version": "1.0.3",
"description": "Interpolate numbers, colors, strings, arrays, objects, whatever!",
"homepage": "https://d3js.org/d3-interpolate/",
"repository": {
"type": "git",
"url": "https://github.com/d3/d3-interpolate.git"
},
"keywords": [
"d3",
"d3-module",
"interpolate",
"interpolation",
"color"
],
"license": "ISC",
"author": {
"name": "Mike Bostock",
"url": "http://bost.ocks.org/mike"
},
"files": [
"dist/**/*.js",
"src/**/*.js"
],
"module": "src/index.js",
"main": "dist/d3-interpolate.js",
"jsdelivr": "dist/d3-interpolate.min.js",
"unpkg": "dist/d3-interpolate.min.js",
"sideEffects": false,
"dependencies": {
"@antv/d3-color": "^1.0.0"
},
"devDependencies": {
"eslint": "7",
"mocha": "8",
"rollup": "2",
"rollup-plugin-terser": "7"
},
"scripts": {
"test": "mocha 'test/**/*-test.js' && eslint src test",
"build": "rm -rf dist && rollup -c"
},
"engines": {
"node": ">=12"
},
"publishConfig": {
"access": "public",
"registry": "https://registry.npmjs.org/"
}
}
--- package/src/string.js (excerpt) ---
import number from "./number.js";
var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,
reB = new RegExp(reA.source, "g");
function zero(b) {
return function() {
return b;
};
}
function one(b) {
return function(t) {
return b(t) + "";
};
}
export default function(a, b) {
var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b
am, // current match in a
bm, // current match in b
bs, // string preceding current number in b, if any
i = -1, // index in s
s = [], // string constants and placeholders
q = []; // number interpolators
// Coerce inputs to strings.
a = a + "", b = b + "";
// Interpolate pairs of numbers in a & b.
while ((am = reA.exec(a))
&& (bm = reB.exec(b))) {
if ((bs = bm.index) > bi) { // a string precedes the next number in b
bs = b.slice(bi, bs);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match
if (s[i]) s[i] += bm; // coalesce with previous string
else s[++i] = bm;
} else { // interpolate non-matching numbers
s[++i] = null;
q.push({i: i, x: number(am, bm)});
}
bi = reB.lastIndex;
}
// Add remains of b.
if (bi < b.length) {
bs = b.slice(bi);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
// Special optimization for only a single match.
// Otherwise, interpol
--- bundled output (OSV-MAL flagged — LLM scope expansion) ---
--- dist/d3-interpolate.js (bundled) ---
// https://d3js.org/d3-interpolate/ v1.0.2 Copyright 2010-2021 Mike Bostock
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@antv/d3-color')) :
typeof define === 'function' && define.amd ? define(['exports', '@antv/d3-color'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.d3 = global.d3 || {}, global.d3Color));
}(this, (function (exports, d3Color) { 'use strict';
function basis(t1, v0, v1, v2, v3) {
var t2 = t1 * t1, t3 = t2 * t1;
return ((1 - 3 * t1 + 3 * t2 - t3) * v0
+ (4 - 6 * t2 + 3 * t3) * v1
+ (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2
+ t3 * v3) / 6;
}
function basis$1(values) {
var n = values.length - 1;
return function(t) {
var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),
v1 = values[i],
v2 = values[i + 1],
v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,
v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;
return basis((t - i / n) * n, v0, v1, v2, v3);
};
}
function basisClosed(values) {
var n = values.length;
return function(t) {
var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),
v0 = values[(i + n - 1) % n],
v1 = values[i % n],
v2 = values[(i + 1) % n],
v3 = values[(i + 2) % n];
return basis((t - i / n) * n, v0, v1, v2, v3);
};
}
var constant = x => () => x;
function linear(a, d) {
return function(t) {
return a + t * d;
};
}
function exponential(a, b, y) {
return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {
return Math.pow(a + t * b, y);
};
}
function hue$1(a, b) {
var d = b - a;
return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant(isNaN(a) ? b : a);
}
function gamma(y) {
return (y = +y) === 1 ? nogamma : function(a, b) {
return b - a ? exponential(a, b, y) : constant(isNaN(a) ? b : a);
};
}
function nogamma(a, b) {
var
--- dist/d3-interpolate.min.js (bundled) ---
// https://d3js.org/d3-interpolate/ v1.0.2 Copyright 2010-2021 Mike Bostock
!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports,require("@antv/d3-color")):"function"==typeof define&&define.amd?define(["exports","@antv/d3-color"],n):n((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{},t.d3Color)}(this,(function(t,n){"use strict";function r(t,n,r,e,a){var o=t*t,u=o*t;return((1-3*t+3*o-u)*n+(4-6*o+3*u)*r+(1+3*t+3*o-3*u)*e+u*a)/6}function e(t){var n=t.length-1;return function(e){var a=e<=0?e=0:e>=1?(e=1,n-1):Math.floor(e*n),o=t[a],u=t[a+1],i=a>0?t[a-1]:2*o-u,l=a<n-1?t[a+2]:2*u-o;return r((e-a/n)*n,i,o,u,l)}}function a(t){var n=t.length;return function(e){var a=Math.floor(((e%=1)<0?++e:e)*n),o=t[(a+n-1)%n],u=t[a%n],i=t[(a+1)%n],l=t[(a+2)%n];return r((e-a/n)*n,o,u,i,l)}}var o=t=>()=>t;function u(t,n){return function(r){return t+r*n}}function i(t,n){var r=n-t;return r?u(t,r>180||r<-180?r-360*Math.round(r/360):r):o(isNaN(t)?n:t)}function l(t){return 1==(t=+t)?c:function(n,r){return r-n?function(t,n,r){return t=Math.pow(t,r),n=Math.pow(n,r)-t,r=1/r,function(e){return Math.pow(t+e*n,r)}}(n,r,t):o(isNaN(n)?r:n)}}function c(t,n){var r=n-t;return r?u(t,r):o(isNaN(t)?n:t)}var f=function t(r){var e=l(r);function a(t,r){var a=e((t=n.rgb(t)).r,(r=n.rgb(r)).r),o=e(t.g,r.g),u=e(t.b,r.b),i=c(t.opacity,r.opacity);return function(n){return t.r=a(n),t.g=o(n),t.b=u(n),t.opacity=i(n),t+""}}return a.gamma=t,a}(1);function s(t){return function(r){var e,a,o=r.length,u=new Array(o),i=new Array(o),l=new Array(o);for(e=0;e<o;++e)a=n.rgb(r[e]),u[e]=a.r||0,i[e]=a.g||0,l[e]=a.b||0;return u=t(u),i=t(i),l=t(l),a.opacity=1,function(t){return a.r=u(t),a.g=i(t),a.b=l(t),a+""}}}var h=s(e),p=s(a);function v(t,n){n||(n=[]);var r,e=t?Math.min(n.length,t.length):0,a=n.slice();return function(o){for(r=0;r<e;++r)a[r]=t[r]*(1-o)+n[r]*o;return a}}function g(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)}function M(t,n){var r,e=n?n.length:0,a=t?Math.min(e,t.lengt// https://d3js.org/d3-interpolate/ v1.0.2 Copyright 2010-2021 Mike Bostock
!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports,require("@antv/d3-color")):"function"==typeof define&&define.amd?define(["exports","@antv/d3-color"],n):n((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{},t.d3Color)}(this,(function(t,n){"use strict";function r(t,n,r,e,a){var o=t*t,u=o*t;return((1-3*t+3*o-u)*n+(4-6*o+3*u)*r+(1+3*t+3*o-3*u)*e+u*a)/6}function e(t){var n=t.length-1;return function(e){var a=e<=0?e=0:e>=1?(e=1,n-1):Math.floor(e*n),o=t[a],u=t[a+1],i=a>0?t[a-1]:2*o-u,l=a<n-1?t[a+2]:2*u-o;return r((e-a/n)*n,i,o,u,l)}}function a(t){var n=t.length;return function(e){var a=Math.floor(((e%=1)<0?++e:e)*n),o=t[(a+n-1)%n],u=t[a%n],i=t[(a+1)%n],l=t[(a+2)%n];return r((e-a/n)*n,o,u,i,l)}}var o=t=>()=>t;function u(t,n){return function(r){return t+r*n}}function i(t,n){var r=n-t;return r?u(t,r>180||r<-180?r-360*Math.round(r/360):r):o(isNaN(t)?n:t)}function l(t){return 1==(t=+t)?c:function(n,r){return r-n?function(t,n,r){return t=Math.pow(t,r),n=Math.pow(n,r)-t,r=1/r,function(e){return Math.pow(t+e*n,r)}}(n,r,t):o(isNaN(n)?r:n)}}function c(t,n){var r=n-t;return r?u(t,r):o(isNaN(t)?n:t)}var f=function t(r){var e=l(r);function a(t,r){var a=e((t=n.rgb(t)).r,(r=n.rgb(r)).r),o=e(t.g,r.g),u=e(t.b,r.b),i=c(t.opacity,r.opacity);return function(n){return t.r=a(n),t.g=o(n),t.b=u(n),t.opacity=i(n),t+""}}return a.gamma=t,a}(1);function s(t){return function(r){var e,a,o=r.length,u=new Array(o),i=new Array(o),l=new Array(o);for(e=0;e<o;++e)a=n.rgb(r[e]),u[e]=a.r||0,i[e]=a.g||0,l[e]=a.b||0;return u=t(u),i=t(i),l=t(l),a.opacity=1,function(t){return a.r=u(t),a.g=i(t),a.b=l(t),a+""}}}var h=s(e),p=s(a);function v(t,n){n||(n=[]);var r,e=t?Math.min(n.length,t.length):0,a=n.slice();return function(o){for(r=0;r<e;++r)a[r]=t[r]*(1-o)+n[r]*o;return a}}function g(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)}function M(t,n){var r,e=n?n.length:0,a=t?Math.min(e,t.lengt
