forked from sheetjs/docs.sheetjs.com
97 lines
3.4 KiB
Swift
Executable File
97 lines
3.4 KiB
Swift
Executable File
/* sheetjs (C) 2013-present SheetJS -- https://sheetjs.com */
|
|
import JavaScriptCore;
|
|
|
|
enum SJSError: Error {
|
|
case badJSContext;
|
|
case badJSWorkbook;
|
|
case badJSWorksheet;
|
|
};
|
|
|
|
class SJSWorksheet {
|
|
var context: JSContext!;
|
|
var wb: JSValue; var ws: JSValue;
|
|
var idx: Int32;
|
|
|
|
func toCSV() throws -> String {
|
|
let XLSX: JSValue! = context.objectForKeyedSubscript("XLSX");
|
|
let utils: JSValue! = XLSX.objectForKeyedSubscript("utils");
|
|
let sheet_to_csv: JSValue! = utils.objectForKeyedSubscript("sheet_to_csv");
|
|
return sheet_to_csv.call(withArguments: [ws]).toString();
|
|
}
|
|
|
|
init(ctx: JSContext, workbook: JSValue, worksheet: JSValue, idx: Int32) throws {
|
|
self.context = ctx; self.wb = workbook; self.ws = worksheet; self.idx = idx;
|
|
}
|
|
}
|
|
|
|
class SJSWorkbook {
|
|
var context: JSContext!;
|
|
var wb: JSValue; var SheetNames: JSValue; var Sheets: JSValue;
|
|
|
|
func getSheetAtIndex(idx: Int32) throws -> SJSWorksheet {
|
|
let SheetName: String = SheetNames.atIndex(Int(idx)).toString();
|
|
let ws: JSValue! = Sheets.objectForKeyedSubscript(SheetName);
|
|
return try SJSWorksheet(ctx: context, workbook: wb, worksheet: ws, idx: idx);
|
|
}
|
|
|
|
func writeBStr(bookType: String = "xlsx") throws -> String {
|
|
let XLSX: JSValue! = context.objectForKeyedSubscript("XLSX");
|
|
context.evaluateScript(String(format: "var writeopts = {type:'binary', bookType:'%@'}", bookType));
|
|
let writeopts: JSValue = context.objectForKeyedSubscript("writeopts");
|
|
let writefunc: JSValue = XLSX.objectForKeyedSubscript("write");
|
|
return writefunc.call(withArguments: [wb, writeopts]).toString();
|
|
}
|
|
|
|
init(ctx: JSContext, wb: JSValue) throws {
|
|
self.context = ctx;
|
|
self.wb = wb;
|
|
self.SheetNames = wb.objectForKeyedSubscript("SheetNames");
|
|
self.Sheets = wb.objectForKeyedSubscript("Sheets");
|
|
}
|
|
}
|
|
|
|
class SheetJSCore {
|
|
var context: JSContext!;
|
|
var XLSX: JSValue!;
|
|
|
|
func init_context() throws -> JSContext {
|
|
var context: JSContext!
|
|
do {
|
|
context = JSContext();
|
|
context.exceptionHandler = { _, X in if let e = X { print(e.toString()!); }; };
|
|
context.evaluateScript("var global = (function(){ return this; }).call(null);");
|
|
context.evaluateScript("if(typeof wbs == 'undefined') wbs = [];");
|
|
let src = try String(contentsOfFile: "xlsx.full.min.js");
|
|
context.evaluateScript(src);
|
|
if context != nil { return context!; }
|
|
} catch { print(error.localizedDescription); }
|
|
throw SJSError.badJSContext;
|
|
}
|
|
|
|
func version() throws -> String {
|
|
if let version = XLSX.objectForKeyedSubscript("version") { return version.toString(); }
|
|
throw SJSError.badJSContext;
|
|
}
|
|
|
|
func readFile(file: String) throws -> SJSWorkbook {
|
|
let data: String! = try String(contentsOfFile: file, encoding: String.Encoding.isoLatin1);
|
|
return try readBStr(data: data);
|
|
}
|
|
|
|
func readBStr(data: String) throws -> SJSWorkbook {
|
|
context.setObject(data, forKeyedSubscript: "payload" as (NSCopying & NSObjectProtocol));
|
|
context.evaluateScript("var wb = XLSX.read(payload, {type:'binary'});");
|
|
let wb: JSValue! = context.objectForKeyedSubscript("wb");
|
|
if wb == nil { throw SJSError.badJSWorkbook; }
|
|
return try SJSWorkbook(ctx: context, wb: wb);
|
|
}
|
|
|
|
init() throws {
|
|
do {
|
|
self.context = try init_context();
|
|
self.XLSX = self.context.objectForKeyedSubscript("XLSX");
|
|
if self.XLSX == nil { throw SJSError.badJSContext; }
|
|
} catch { print(error.localizedDescription); }
|
|
}
|
|
}
|