Added babel parser support for javascript parsing

README.md

@@ -30,7 +30,7 @@ yarn add --dev easygettext
 ##### HTML token extraction
 
 Simply invoke the tool on the templates you want to extract a POT dictionary template from.
-The optional '--ouput' argument enables you to directly output to a file.
+The optional '--output' argument enables you to directly output to a file.
 
 ```
 gettext-extract --output dictionary.pot foo.html bar.pug component.vue sourcefile.js

package.json

@@ -30,6 +30,7 @@
     "gettext-extract": "./src/extract-cli.js"
   },
   "dependencies": {
+    "@babel/core": "^7.7.5",
     "@vue/component-compiler-utils": "^2.6.0",
     "acorn": "^6.4.0",
     "acorn-stage3": "^2.0.0",

src/extract-cli.js

@@ -23,9 +23,10 @@ const extraAttribute = argv.attribute || false;
 const extraFilter = argv.filter || false;
 const removeHTMLWhitespaces = argv.removeHTMLWhitespaces || false;
 const filterPrefix = argv.filterPrefix || constants.DEFAULT_FILTER_PREFIX;
+const jsParser = argv.parser || 'auto';
 
 if (!quietMode && (!files || files.length === 0)) {
-  console.log('Usage:\n\tgettext-extract [--attribute EXTRA-ATTRIBUTE] [--filterPrefix FILTER-PREFIX] [--output OUTFILE] <FILES>');
+  console.log('Usage:\n\tgettext-extract [--attribute EXTRA-ATTRIBUTE] [--filterPrefix FILTER-PREFIX] [--output OUTFILE] [--parser auto|acorn|babel] <FILES>');
   process.exit(1);
 }
 
@@ -63,7 +64,7 @@ files.forEach(function(filename) {
     console.log(`[${PROGRAM_NAME}] will not extract: '${filename}' (invalid extension)`);
     return;
   }
-  console.log(`[${PROGRAM_NAME}] extracting: '${filename}`);
+  console.log(`[${PROGRAM_NAME}] extracting: '${filename}'`);
   try {
     let data = fs.readFileSync(file, {encoding: 'utf-8'}).toString();
     extractor.parse(file, extract.preprocessTemplate(data, ext));
@@ -80,10 +81,10 @@ files.forEach(function(filename) {
     }
 
     if (lang === 'js') {
-      extractor.parseJavascript(file, data);
+      extractor.parseJavascript(file, data, jsParser);
     }
   } catch (e) {
-    console.error(`[${PROGRAM_NAME}] could not read: '${filename}`);
+    console.error(`[${PROGRAM_NAME}] could not read: '${filename}' using parser ${jsParser}`);
     console.trace(e);
     process.exit(1);
   }

src/extract.js

@@ -261,10 +261,10 @@ exports.Extractor = class Extractor {
     }
   }
 
-  parseJavascript(filename, content) {
+  parseJavascript(filename, content, parser='auto') {
     const jsContent = flowRemoveTypes(content).toString();
 
-    const extractedStringsFromScript = jsExtractor.extractStringsFromJavascript(filename, jsContent);
+    const extractedStringsFromScript = jsExtractor.extractStringsFromJavascript(filename, jsContent, parser);
 
     this.processStrings(extractedStringsFromScript);
   }