forked from sheetjs/sheetjs
63 lines
1.8 KiB
Swift
63 lines
1.8 KiB
Swift
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#!/usr/bin/env xcrun swift
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import JavaScriptCore;
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class SheetJS {
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var context: JSContext!;
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var XLSX: JSValue!;
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enum SJSError: Error {
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case badJSContext;
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};
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func init_context() throws -> JSContext {
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var context: JSContext!
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do {
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context = JSContext();
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context.exceptionHandler = { ctx, X in if let e = X { print(e.toString()); }; }
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var src = "var global = (function(){ return this; }).call(null);";
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context.evaluateScript(src);
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src = try String(contentsOfFile: "xlsx.swift.js");
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context.evaluateScript(src);
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if context != nil { return context!; }
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} catch { print(error.localizedDescription); }
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throw SheetJS.SJSError.badJSContext;
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}
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func version() throws -> String {
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if let version = XLSX.objectForKeyedSubscript("version") { return version.toString(); }
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throw SheetJS.SJSError.badJSContext;
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}
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func readFileToCSV(file: String) throws -> String {
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let data:String! = try String(contentsOfFile: file, encoding:String.Encoding.ascii);
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self.context.setObject(data, forKeyedSubscript:"payload" as (NSCopying & NSObjectProtocol)!);
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let src = [
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"var wb = XLSX.read(payload, {type:'binary'});",
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"var ws = wb.Sheets[wb.SheetNames[0]];",
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"var result = XLSX.utils.sheet_to_csv(ws);"
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].joined(separator: "\n");
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self.context.evaluateScript(src);
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return context.objectForKeyedSubscript("result").toString();
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}
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init() throws {
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do {
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self.context = try init_context();
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self.XLSX = context.objectForKeyedSubscript("XLSX");
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if self.XLSX == nil {
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throw SheetJS.SJSError.badJSContext;
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}
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} catch { print(error.localizedDescription); }
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}
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}
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let sheetjs = try SheetJS();
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try print(sheetjs.version());
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try print(sheetjs.readFileToCSV(file:"sheetjs.xlsx"));
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try print(sheetjs.readFileToCSV(file:"sheetjs.xlsb"));
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try print(sheetjs.readFileToCSV(file:"sheetjs.xls"));
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try print(sheetjs.readFileToCSV(file:"sheetjs.xml.xls"));
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