Feature: Parsing entries can be specified.

lib/index.js

@@ -7,14 +7,23 @@ class XLSX2JSON {
 	/**
 	 *
 	 * @param source filepath or buffer
-	 * @param options
+	 * @param options {object} entry: sheetName, sheets: ['sheetName']
 	 * @returns {[{sheetName,data}]} sheet list
 	 */
 	parse(source, options = {}) {
 		const readMethod = typeof source === 'string' ? 'readFile' : 'read';
 		const workbook = XLSX[readMethod](source, options);
 		const result = [];
-		for (let i in workbook.Sheets) {
+		const workbookSheets = Object.keys(workbook.Sheets);
+		if (!options.entry) {
+		  options.entry = workbookSheets[0];
+    }
+		let parsingSheets = null;
+		if (options.sheets instanceof Array) {
+		  options.sheets.unshift(options.entry);
+      parsingSheets = [...new Set(options.sheets)];
+    }
+		for (let i of (parsingSheets || workbookSheets)) {
 			const sheetData = workbook.Sheets[i];
 			result.push({
 				sheetName: i,
@@ -40,7 +49,6 @@ class XLSX2JSON {
 	parse2json(source, options = {}) {
 		// 解析前，对原先数据校零处理。
 		this.zeroCorrection();
-		const opts = Object.assign({isColOriented: true}, options);
 		this.parsedXlsxData = this.parse(source, options);
 
 		XLSX2JSON.switch2customStructure(this.parsedXlsxData);
@@ -90,10 +98,11 @@ class XLSX2JSON {
 		for (let i = 0, len = firstCol.length; i < len; i += 1) {
 			if (firstCol[i] === undefined || (firstCol[i].trim && firstCol[i].trim() === '')) {
 				if (i === 0) {
-					console.error('The first line of the\'json\'attribute description value is forbidden to be null.');
-					process.exit(0);
-				}
-				firstCol[i] = firstCol[i - 1];
+					console.warn('The first line of the\'json\'attribute description value is forbidden to be null.');
+          firstCol[i] = 'firstLineAttrDesc';
+				} else {
+          firstCol[i] = firstCol[i - 1];
+        }
 			} else {
 				firstCol[i] = firstCol[i].toString().replace(/\s/g, '');
 			}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "xlsx-json-js",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "Parse the'xlsx'file as JSON according to a set of attribute description syntax.",
   "main": "lib/index.js",
   "scripts": {

test/index.test.js

@@ -9,6 +9,7 @@ const testXlsxPath = path.join(__dirname, './assets/excel.xlsx');
 
 describe('原生数据结构parse解析测试', function() {
   const parsedNativeData = xlsx2json.parse(testXlsxPath);
+  const parsedNativeData2 = xlsx2json.parse(testXlsxPath, {entry: 'company', sheets: ['address']});
   it('原生解析：sheet个数完整', function() {
     expect(parsedNativeData.length).to.be.equal(4);
   });
@@ -17,10 +18,19 @@ describe('原生数据结构parse解析测试', function() {
     expect(parsedNativeData[0].data[0][0]).to.be.equal('filename');
     expect(parsedNativeData[3].data[0][0]).to.be.equal('city[]');
   });
+  it('原生解析：指定解析入口', function() {
+    expect(parsedNativeData2[0].sheetName).to.be.equal('company');
+  });
+  it('原生解析：指定解析sheets', function() {
+    expect(parsedNativeData2.length).to.be.equal(2);
+    expect(parsedNativeData2[0].sheetName).to.be.equal('company');
+    expect(parsedNativeData2[1].sheetName).to.be.equal('address');
+  });
 });
 
 describe('自定义数据结构parse2json解析测试', function() {
   const parsedCustomData = xlsx2json.parse2json(testXlsxPath);
+  const parsedCustomData2 = xlsx2json.parse2json(testXlsxPath, {entry: 'company', sheets: ['address']});
   it('自定义解析：语言码个数完整', function() {
     expect(parsedCustomData.length).to.be.equal(2);
   });
@@ -44,4 +54,8 @@ describe('自定义数据结构parse2json解析测试', function() {
     expect(parsedCustomData[0].companyInfo.address.city[0]).to.be.equal('广州市');
     expect(parsedCustomData[1].companyInfo.address.city[0]).to.be.equal('guangzhou');
   });
+  it('自定义解析：指定入口和sheets', function() {
+    expect(parsedCustomData2[0].address.city[0]).to.be.equal('广州市');
+    expect(parsedCustomData2[1].address.city[0]).to.be.equal('guangzhou');
+  });
 });