107 lines
4.8 KiB
JavaScript
107 lines
4.8 KiB
JavaScript
const { pack, unpack } = require("./archive.cjs");
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const xml = (value) =>
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String(value ?? "").replace(
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/[&<>"']/g,
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(c) => ({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c],
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);
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const column = (index) => {
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let name = "";
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for (index++; index; index = Math.floor((index - 1) / 26))
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name = String.fromCharCode(65 + ((index - 1) % 26)) + name;
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return name;
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};
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function sheet(rows) {
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if (rows.length > 1048576 || rows.some((r) => r.length > 16384))
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throw Error("Excel 행/열 한도 초과");
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return `<?xml version="1.0" encoding="UTF-8"?><worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main"><sheetViews><sheetView workbookViewId="0"><pane ySplit="1" topLeftCell="A2" state="frozen"/></sheetView></sheetViews><sheetData>${rows
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.map(
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(r, i) =>
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`<row r="${i + 1}">${r
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.map((v, j) => {
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const ref = column(j) + (i + 1);
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if (v == null) return "";
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if (typeof v === "number") {
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if (!Number.isFinite(v)) throw Error("유효하지 않은 Excel 숫자");
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return `<c r="${ref}"><v>${v}</v></c>`;
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}
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if (typeof v === "boolean") return `<c r="${ref}" t="b"><v>${v ? 1 : 0}</v></c>`;
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const text = typeof v === "object" ? JSON.stringify(v) : String(v);
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if (text.length > 32767) throw Error("Excel 셀 문자 한도 초과: " + ref);
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return `<c r="${ref}" t="inlineStr"><is><t xml:space="preserve">${xml(text)}</t></is></c>`;
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})
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.join("")}</row>`,
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)
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.join("")}</sheetData><pageSetup paperSize="9" orientation="landscape"/></worksheet>`;
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}
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function workbook(project) {
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const files = new Map(),
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sheets = [];
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for (const [name, rows] of Object.entries(project.tables)) {
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if (!Array.isArray(rows) || name.startsWith("Cad") || name.length > 31) continue;
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// Binary originals stay in JSON/ESTX; Excel edits scalar table fields only.
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const keys = [
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...new Set(
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rows.flatMap((r) =>
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Object.keys(r).filter(
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(k) => !k.startsWith("_") && r[k] != null && typeof r[k] !== "object",
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),
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),
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),
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];
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if (!keys.length) continue;
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sheets.push({
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name,
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rows: [
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keys,
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...rows.map((r) =>
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keys.map((k) => (typeof r[k] === "object" && r[k] != null ? null : r[k])),
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),
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],
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});
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}
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sheets.unshift({
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name: "공사정보",
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rows: [
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["항목", "값"],
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["공사명", project.name],
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["형식", "est-web-xlsx-1"],
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["설명", "표의 첫 행은 필드명입니다. 바이너리는 포함하지 않습니다."],
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],
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});
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sheets.forEach((s, i) => files.set(`xl/worksheets/sheet${i + 1}.xml`, sheet(s.rows)));
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const ns = "http://schemas.openxmlformats.org/";
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files.set(
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"[Content_Types].xml",
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`<?xml version="1.0"?><Types xmlns="${ns}package/2006/content-types"><Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/><Default Extension="xml" ContentType="application/xml"/><Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"/>${sheets.map((s, i) => `<Override PartName="/xl/worksheets/sheet${i + 1}.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml"/>`).join("")}</Types>`,
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);
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files.set(
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"_rels/.rels",
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`<?xml version="1.0"?><Relationships xmlns="${ns}package/2006/relationships"><Relationship Id="rId1" Type="${ns}officeDocument/2006/relationships/officeDocument" Target="xl/workbook.xml"/></Relationships>`,
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);
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files.set(
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"xl/workbook.xml",
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`<?xml version="1.0" encoding="UTF-8"?><workbook xmlns="${ns}spreadsheetml/2006/main" xmlns:r="${ns}officeDocument/2006/relationships"><sheets>${sheets.map((s, i) => `<sheet name="${xml(s.name)}" sheetId="${i + 1}" r:id="rId${i + 1}"/>`).join("")}</sheets><calcPr calcId="0" fullCalcOnLoad="1"/></workbook>`,
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);
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files.set(
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"xl/_rels/workbook.xml.rels",
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`<?xml version="1.0"?><Relationships xmlns="${ns}package/2006/relationships">${sheets.map((s, i) => `<Relationship Id="rId${i + 1}" Type="${ns}officeDocument/2006/relationships/worksheet" Target="worksheets/sheet${i + 1}.xml"/>`).join("")}</Relationships>`,
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);
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return pack(files);
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}
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function readWorkbook(bytes) {
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const files = unpack(bytes),
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selected = {};
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if (!files.has("xl/workbook.xml") || !files.has("xl/_rels/workbook.xml.rels"))
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throw Error("Excel 통합문서 구조 없음");
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for (const [name, data] of files)
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if (
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name === "xl/workbook.xml" ||
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name === "xl/_rels/workbook.xml.rels" ||
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name === "xl/sharedStrings.xml" ||
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/^xl\/worksheets\/[^/]+\.xml$/.test(name)
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)
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selected[name] = data.toString("utf8");
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return selected;
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}
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module.exports = { workbook, readWorkbook, xml };
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