96 lines
2.8 KiB
JavaScript
96 lines
2.8 KiB
JavaScript
const fs = require("fs-extra");
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const path = require("path");
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const toml = require("toml");
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module.exports = async function() {
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const variantsToml = await fs.readFile(path.join(__dirname, "../../variants.toml"), "utf8");
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const variants = toml.parse(variantsToml);
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const cvData = getCvData(variants);
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const ssData = getSsData(variants, cvData);
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return {
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cvData,
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ssData,
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default: variants.default,
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slabDefaultOverride: variants.composite.slab
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};
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};
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function getCvData(variants) {
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const samplerGroups = new Map();
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for (const selector in variants.simple) {
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let config = variants.simple[selector];
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if (!config.sampler) continue;
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config = { selector, ...config };
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let gr = samplerGroups.get(config.sampler);
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if (!gr) {
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gr = { configs: [] };
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samplerGroups.set(config.sampler, gr);
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}
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gr.configs.push({
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selector,
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tag: config.tag || null,
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tagUpright: config.tagUpright || null,
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tagItalic: config.tagItalic || null,
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sampler: config.sampler,
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description: config.description
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});
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}
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for (const [sampler, gr] of samplerGroups) {
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gr.ligatureSampler = / /.test(sampler);
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gr.descSampleText = gr.ligatureSampler ? sampler.split(" ") : [...sampler];
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gr.configs.sort((a, b) => (a.tag < b.tag ? -1 : a.tag > b.tag ? 1 : 0));
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gr.rank = rankOf(gr.descSampleText[0][0]);
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}
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return [...samplerGroups.values()].sort((a, b) => b.rank - a.rank);
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}
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function rankOf(initialChar) {
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if ("A" <= initialChar && initialChar <= "Z") return 3;
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if (("a" <= initialChar && initialChar <= "z") || initialChar === "ß") return 2;
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if ("0" <= initialChar && initialChar <= "9") return 1;
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return 0;
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}
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function getSsData(variants, cvData) {
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const result = [
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{
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tag: "off",
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effective: false,
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description: "Default",
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uprightComposition: [],
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italicComposition: [],
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hotCharSetUpright: [],
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hotCharSetItalic: []
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}
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];
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for (const tag in variants.composite) {
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if (!/^ss\d\d$/.test(tag)) continue;
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const composition = variants.composite[tag];
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const uprightCfg = new Set([...(composition.design || []), ...(composition.upright || [])]);
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const italicCfg = new Set([...(composition.design || []), ...(composition.italic || [])]);
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const hotCharSetUpright = new Set();
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const hotCharSetItalic = new Set();
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for (const gr of cvData) {
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if (gr.ligatureSampler) continue;
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for (const config of gr.configs) {
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if (uprightCfg.has(config.selector))
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for (const ch of gr.descSampleText) hotCharSetUpright.add(ch);
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if (italicCfg.has(config.selector))
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for (const ch of gr.descSampleText) hotCharSetItalic.add(ch);
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}
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}
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result.push({
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tag,
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effective: true,
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description: composition.description,
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uprightComposition: Array.from(uprightCfg),
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italicComposition: Array.from(italicCfg),
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hotCharSetUpright: Array.from(hotCharSetUpright),
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hotCharSetItalic: Array.from(hotCharSetItalic)
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});
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}
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return result;
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}
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