94 lines
3.1 KiB
TypeScript
94 lines
3.1 KiB
TypeScript
import {
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PDFAcroField,
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PDFHexString,
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PDFName,
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PDFString,
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toHexString,
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} from "pdf-lib";
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import { loadPdfForm, savePdf } from "util/saveLoadPdf.ts";
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import { PDFDocument } from "pdf-lib";
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import { call, callWithArgPrompt } from "util/call.ts";
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// const thing = PDFAcroField.prototype.getFullyQualifiedName;
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// PDFAcroField.prototype.getFullyQualifiedName = function () {
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// const name = thing.call(this)
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// // if (name?.includes('langauge'))
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// console.log(name)
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// return name;
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// }
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// const thing = PDFHexString.prototype.copyBytesInto
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// PDFHexString.prototype.copyBytesInto = function (buffer: Uint8Array, offset: number) {
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// console.log((this as any).value)
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// const result = thing.call(this, buffer, offset)
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// return result;
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// }
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async function renameFields(
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path: string,
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pattern: string | RegExp,
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change: string,
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) {
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if (typeof pattern === "string") pattern = new RegExp(pattern);
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const form = await loadPdfForm(path);
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const fields = form.getFields();
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let changesMade = false;
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for (const field of fields) {
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const name = field.getName();
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if (pattern.test(name)) {
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console.log(name + " %cfound", "color: red");
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const segments = name.split(".");
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const matchingSegments = segments.filter((s) => pattern.test(s));
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let cField: PDFAcroField | undefined = field.acroField;
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while (cField) {
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if (
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cField.getPartialName() &&
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matchingSegments.includes(cField.getPartialName()!)
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) {
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const mName = cField.getPartialName()?.replace(pattern, change);
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if (mName) {
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changesMade = true;
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cField.dict.set(PDFName.of("T"), PDFString.of(mName));
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// console.log(cField.getPartialName())
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}
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}
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cField = cField.getParent();
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// console.log(cField?.getPartialName())
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}
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console.log(field.getName());
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// const newName = name.replace(pattern, change);
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// console.log("Change to: %c" + newName, "color: yellow");
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// if (confirm('Ok?')) {
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// let parent = field.acroField.getParent();
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// field.acroField.setPartialName(segments.pop())
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// while (parent && segments.length) {
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// console.log(parent.getPartialName())
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// parent.setPartialName(segments.pop())
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// parent = parent.getParent();
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// }
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// changesMade = true;
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// console.log(field.getName())
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// // dict.set(PDFName.of("T"), PDFHexString.fromText(newName))
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// console.log("%cDone!", "color: lime")
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// }
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// break;
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}
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}
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if (changesMade) {
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savePdf(form.doc, path);
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}
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}
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if (import.meta.main) {
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// await call(renameFields)
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// while (!path || !path.endsWith('.pdf')) path = prompt("Please provide path to PDF:") || '';
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// while (!pattern) pattern = prompt("Please provide search string:") || '';
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// while (!change) change = prompt("Please provide requested change:") || '';
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await callWithArgPrompt(renameFields, [
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["Please provide path to PDF:", (p) => !!p && p.endsWith(".pdf")],
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"Please provide search string:",
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"Please provide requested change:",
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]);
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}
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