31 lines
1.0 KiB
TypeScript
31 lines
1.0 KiB
TypeScript
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import JSZip from "jszip";
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import { toJson } from "./util";
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import { traverse } from "./traverser";
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import { InputDataType } from "./from-docx";
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type PatchDetectorOptions = {
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readonly data: InputDataType;
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};
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/** Detects which patches are needed/present in a template */
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export const patchDetector = async ({ data }: PatchDetectorOptions): Promise<readonly string[]> => {
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const zipContent = await JSZip.loadAsync(data);
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const patches = new Set<string>();
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for (const [key, value] of Object.entries(zipContent.files)) {
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if (!key.endsWith(".xml") && !key.endsWith(".rels")) {
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continue;
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}
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if (key.startsWith("word/") && !key.endsWith(".xml.rels")) {
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const json = toJson(await value.async("text"));
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traverse(json).forEach((p) => findPatchKeys(p.text).forEach((patch) => patches.add(patch)));
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}
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}
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return Array.from(patches);
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};
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const findPatchKeys = (text: string): readonly string[] => {
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const pattern = /(?<=\{\{).+?(?=\}\})/gs;
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return text.match(pattern) ?? [];
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};
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