add --encoding argument (implements #1)

lib/markdowns.js

@@ -17,6 +17,7 @@ parser.addArgument([ "-V", "--verbose" ], { action: "storeTrue", help: "Be verbo
 parser.addArgument([ "-d", "--debug" ], { action: "storeTrue", help: "Show debugging output." });
 parser.addArgument([ "-e", "--extension" ], { defaultValue: "md", help: "Set the file extension of Markdown files. Defaults to md." });
 parser.addArgument([ "-f", "--force" ], { action: "storeTrue", help: "Ignore warnings." });
+parser.addArgument([ "-n", "--encoding" ], { defaultValue: "utf8", help: "Set the file encoding of the output files (ascii or utf8). Defaults to utf8." });
 parser.addArgument([ "directory" ], { defaultValue: ".", nargs: "?", help: "The directory to process or watch. Defaults to the current directory." });
 
 var args = parser.parseArgs();
@@ -33,6 +34,9 @@ if (!fs.statSync(args.directory).isDirectory())
 if (args.extension === "html" && !args.force)
     return console.warn("Warning: using extension 'html' could result in data loss. If you're sure you want to do this, try --force.");
 
+if (args.encoding != "utf8" && args.encoding != "ascii")
+    return console.error("Error: encoding must be utf8 or ascii.");
+
 if (args.process)
 {
     console.log("Processing '*." + args.extension + "' files in '" + args.directory + "'...");
@@ -93,7 +97,7 @@ function writeHtmlFile(inputFilePath, markdown)
     var html = marked(markdown.toString('utf8'));
     var outputFilePath = path.join(path.dirname(inputFilePath), path.basename(inputFilePath, path.extname(inputFilePath)) + ".html");
 
-    fs.writeFileSync(outputFilePath, html, 'utf8');
+    fs.writeFileSync(outputFilePath, html, args.encoding);
     console.log("Success:", inputFilePath, "->", outputFilePath);
 }