find-ttt.js

#!/usr/bin/env node

// =================================================================================
// Copyright (c) 2014 sheutettz. All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// 
//   1. Redistributions of source code must retain the above copyright notice, this
//      list of conditions and the following disclaimer.
// 
//   2. Redistributions in binary form must reproduce the above copyright notice,
//      this list of conditions and the following disclaimer in the documentation
//      and/or other materials provided with the distribution.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
// =================================================================================

'use strict';

var _ = require('lodash');
var fs = require('fs');
var glob = require('glob');
var uglifyjs = require('uglify-js');

var args = process.argv.slice(2);
var filePatterns = [];

var skip = false;
var len = args.length;
args.forEach(function (val, index) {
  if (skip) {
    skip = false;
    return;
  }
  if (_.isString(val) && val.length > 0) {
    if (val.match(/^-+[a-zA-Z0-9][-a-zA-Z0-9]*$/)) {
      console.warn('unknown command line option: ' + val);
    }
    else {
      filePatterns.push(val);
    }
  }
});

if (filePatterns.length === 0) {
  console.error('Error! No filename patterns specified!\n');
  console.error('Usage: find-ttt.js filename-patterns [filename-patterns ...]');
  console.error();
}

var filesMatched = [];
_.each(filePatterns, function (filenamePattern) {
  var ff = glob.sync(filenamePattern, {});
  filesMatched = filesMatched.concat(ff);
});

_.each(filesMatched, findTextToTranslate);

function findTextToTranslate(srcFile) {

  var code = fs.readFileSync(srcFile, "utf8");
  var toplevel = uglifyjs.parse(code);
  var count = 0;

  var walker = new uglifyjs.TreeWalker(function (node, godown) {
    if (node instanceof uglifyjs.AST_Call) {
      var expr = node.expression;
      if (expr.name === 'T') {
        if (count === 0) {
          console.log(srcFile + ':');
        }
        count++;
        var text = escapedString(node.args[0].value);
        if (node.args.length > 1) {
          console.log('  ' + text +  " // used with " + (node.args.length - 1) + " paramter(s)");
        }
        else {
          console.log('  ' + text);
        }
        return true;
      }
    }
  });

  toplevel.walk(walker);

  if (count > 0) {
    console.log();
  }
}

function escapedString(s) {
  var json = JSON.stringify(["" + s]);
  return json.substr(1, json.length - 2);
}