text: #!/usr/bin/env node
  /* xls.js (C) 2013-2015 SheetJS -- http://sheetjs.com */
  var n = "xls";
  /* vim: set ts=2 ft=javascript: */
  var X = require('../');
  var fs = require('fs'), program = require('commander');
  program
  	.version(X.version)
  	.usage('[options] <file> [sheetname]')
  	.option('-f, --file <file>', 'use specified workbook')
  	.option('-s, --sheet <sheet>', 'print specified sheet (default first sheet)')
  	.option('-p, --password <pw>', 'if file is encrypted, try with specified pw')
  	.option('-l, --list-sheets', 'list sheet names and exit')
  	.option('-o, --output <file>', 'output to specified file')
  	.option('-S, --formulae', 'print formulae')
  	.option('-j, --json', 'emit formatted JSON (all fields text)')
  	.option('-J, --raw-js', 'emit raw JS object (raw numbers)')
  	.option('-F, --field-sep <sep>', 'CSV field separator', ",")
  	.option('-R, --row-sep <sep>', 'CSV row separator', "\n")
  	.option('-n, --sheet-rows <num>', 'Number of rows to process (0=all rows)')
  	.option('--perf', 'do not generate output')
  	.option('--all', 'parse everything')
  	.option('--dev', 'development mode')
  	.option('--read', 'read but do not print out contents')
  	.option('-q, --quiet', 'quiet mode');
  
  program.on('--help', function() {
  	console.log('  Default output format is CSV');
  	console.log('  Support email: dev@sheetjs.com');
  	console.log('  Web Demo: http://oss.sheetjs.com/js-'+n+'/');
  });
  
  program.parse(process.argv);
  
  var filename, sheetname = '';
  if(program.args[0]) {
  	filename = program.args[0];
  	if(program.args[1]) sheetname = program.args[1];
  }
  if(program.sheet) sheetname = program.sheet;
  if(program.file) filename = program.file;
  
  if(!filename) {
  	console.error(n + ": must specify a filename");
  	process.exit(1);
  }
  
  if(!fs.existsSync(filename)) {
  	console.error(n + ": " + filename + ": No such file or directory");
  	process.exit(2);
  }
  
  var opts = {}, wb;
  if(program.listSheets) opts.bookSheets = true;
  if(program.sheetRows) opts.sheetRows = program.sheetRows;
  if(program.password) opts.password = program.password;
  if(program.formulae) opts.cellFormula = true;
  else opts.cellFormula = false;
  
  if(program.all) {
  	opts.cellFormula = true;
  	opts.cellNF = true;
  	opts.cellStyles = true;
  }
  
  if(program.dev) {
  	X.verbose = 2;
  	opts.WTF = true;
  	wb = X.readFile(filename, opts);
  }
  else try {
  	wb = X.readFile(filename, opts);
  } catch(e) {
  	var msg = (program.quiet) ? "" : n + ": error parsing ";
  	msg += filename + ": " + e;
  	console.error(msg);
  	process.exit(3);
  }
  if(program.read) process.exit(0);
  
  if(program.listSheets) {
  	console.log(wb.SheetNames.join("\n"));
  	process.exit(0);
  }
  
  var target_sheet = sheetname || '';
  if(target_sheet === '') target_sheet = wb.SheetNames[0];
  
  var ws;
  try {
  	ws = wb.Sheets[target_sheet];
  	if(!ws) throw "Sheet " + target_sheet + " cannot be found";
  } catch(e) {
  	console.error(n + ": error parsing "+filename+" "+target_sheet+": " + e);
  	process.exit(4);
  }
  
  if(program.perf) return;
  
  var oo = ""; 
  if(!program.quiet) console.error(target_sheet);
  if(program.formulae) oo = X.utils.get_formulae(ws).join("\n");
  else if(program.json) oo = JSON.stringify(X.utils.sheet_to_row_object_array(ws));
  else if(program.rawJs) oo = JSON.stringify(X.utils.sheet_to_row_object_array(ws,{raw:true}));
  else oo = X.utils.make_csv(ws, {FS:program.fieldSep, RS:program.rowSep});
  
  if(program.output) fs.writeFileSync(program.output, oo);
  else console.log(oo);
  