Add support for the D programming language

Makefile

@@ -7,6 +7,14 @@ else
 default: run
 endif
 
+ifeq "" "$(shell which gdc-4.6)"
+optional_d_support:
+	@echo "D language support disabled"
+else
+optional_d_support:
+	$(MAKE) -C d
+endif
+
 NODE_MODULES=.npm-updated
 $(NODE_MODULES): package.json
 	npm install
@@ -23,9 +31,9 @@ clean:
 
 .PHONY: clean run test run-amazon
 
-run: node_modules
+run: node_modules optional_d_support
 	./node_modules/.bin/supervisor ./app.js
 
-run-amazon: node_modules
+run-amazon: node_modules optional_d_support
 	$(MAKE) -C c-preload
 	./node_modules/.bin/supervisor -- ./app.js --env amazon

app.js

@@ -109,19 +109,23 @@ function compile(req, res) {
     if (sourceErr) {
         return res.end(JSON.stringify({code: -1, stderr: sourceErr}));
     }
-
-    compileTask = function(taskFinished) {
+    var compileTask = function(taskFinished) {
         temp.mkdir('gcc-explorer-compiler', function(err, dirPath) {
             if (err) {
                 return res.end(JSON.stringify({code: -1, stderr: "Unable to open temp file: " + err}));
             }
+            var postProcess = props.get("gcc-explorer", "postProcess");
+            var inputFilename = path.join(dirPath, props.get("gcc-explorer", "compileFilename"));
             var outputFilename = path.join(dirPath, 'output.S');
             if (compilerInfo.supportedOpts['-masm']) {
                 var syntax = '-masm=att'; // default at&t
                 if (filters["intel"] == "true") syntax = '-masm=intel';
                 options = options.concat([syntax]);
             }
-            options = options.concat(['-x', 'c++', '-g', '-o', outputFilename, '-S', '-']);
+            options = options.concat(['-g', '-o', outputFilename, '-S', inputFilename]);
+            var file = fs.openSync(inputFilename, "w");
+            fs.writeSync(file, source);
+            fs.closeSync(file);
             var compilerWrapper = props.get("gcc-explorer", "compiler-wrapper");
             if (compilerWrapper) {
                 options = [compiler].concat(options);
@@ -141,7 +145,7 @@ function compile(req, res) {
             child.stderr.on('data', function (data) { stderr += data; });
             child.on('exit', function (code) {
                 clearTimeout(timeout);
-                child_process.exec('cat "' + outputFilename + '" | c++filt',
+                child_process.exec('cat "' + outputFilename + '" | ' + postProcess,
                     { maxBuffer: props.get("gcc-explorer", "max-asm-size", 8 * 1024 * 1024) },
                     function(err, filt_stdout, filt_stderr) {
                         var data = filt_stdout;
@@ -154,11 +158,13 @@ function compile(req, res) {
                             stderr: stderr,
                             asm: data,
                             code: code }));
-                        fs.unlink(outputFilename, function() { fs.rmdir(dirPath); });
+                        fs.unlink(outputFilename, function() { 
+                            fs.unlink(inputFilename, 
+                                function() { fs.rmdir(dirPath); });
+                        });
                         taskFinished();
                     });
             });
-            child.stdin.write(source);
             child.stdin.end();
         });
     };

d/.gitignore

@@ -0,0 +1 @@
+demangle

d/Makefile

@@ -0,0 +1,3 @@
+GDC=gdc-4.6
+demangle: demangle.d
+	$(GDC) -O2 $< -o $@

d/demangle.d

@@ -0,0 +1,16 @@
+import std.stdio;
+import std.demangle;
+import std.regex;
+
+void main() {
+    string dem(RegexMatch!(string) m)
+    {
+        return demangle(m.hit);
+    }
+
+    foreach (line; stdin.byLine()) {
+        string s2 = cast(string)line;
+        auto s = replace!(dem)(s2, regex("[_$a-zA-Z][_$a-zA-Z0-9]*", "g"));
+        writeln(s);
+    }
+}

etc/config/gcc-explorer.lud-ldnmg01.properties

@@ -1,2 +1,6 @@
-# Settings used on Matt's laptop.
-compilers=/usr/bin/g++-4.4:/usr/bin/g++-4.5:/usr/bin/g++-4.6:/usr/bin/g++-4.7:/usr/bin/clang++:/home/mgodbolt/apps/intel-icc-oss/bin/icc:/usr/bin/arm-linux-gnueabi-g++-4.6
+# Default settings for GCC Explorer.
+port=10240
+compileTimeoutMs=4000
+compilers=/usr/bin/gdc-4.6
+compileFilename=example.d
+postProcess=d/demangle

static/index.html

@@ -71,7 +71,7 @@
             <div class="span6">
                 <form class="well form-inline">
                     <label>Compiler: <select class="compiler"></select></label>
-                    <label>Compiler options: <input class="compiler_options" style="width: 30em;" type="text" value="-O2 -std=c++0x -march=native"></label>
+                    <label>Compiler options: <input class="compiler_options" style="width: 30em;" type="text" value="-O2 -march=native"></label>
                     <table><tbody><tr><td>Filter:&nbsp;</td>
                     <td>
                         <div class="btn-group filter">
@@ -87,8 +87,8 @@
        </div>
         <div class="row-fluid">
             <div class="span6 editor">
-                <div class="topbar indented">C++ editor</div>
-                <textarea>// Type C++ code here, or load an example.</textarea>
+                <div class="topbar indented">Code editor</div>
+                <textarea>// Type your code here, or load an example.</textarea>
             </div>
             <div class="span6 asm">
                 <div class="topbar indented">Assembly output</div>