fix a bug in simple_glob (#1632)

- "?" should not match "/"
- other minor clean-ups

test/mocha/glob.js

@@ -1,5 +1,6 @@
 var Uglify = require('../../');
 var assert = require("assert");
+var path = require("path");
 
 describe("minify() with input file globs", function() {
     it("minify() with one input file glob string.", function() {
@@ -21,4 +22,37 @@ describe("minify() with input file globs", function() {
         });
         assert.strictEqual(result.code, 'var print=console.log.bind(console);print("qux",function(n){return 3*n}(3),function(n){return n/2}(12)),function(n){print("Foo:",2*n)}(11);');
     });
+    it("should throw with non-matching glob string", function() {
+        var glob = "test/input/issue-1242/blah.*";
+        assert.strictEqual(Uglify.simple_glob(glob).length, 1);
+        assert.strictEqual(Uglify.simple_glob(glob)[0], glob);
+        assert.throws(function() {
+            Uglify.minify(glob);
+        }, "should throw file not found");
+    });
+    it('"?" in glob string should not match "/"', function() {
+        var glob = "test/input?issue-1242/foo.*";
+        assert.strictEqual(Uglify.simple_glob(glob).length, 1);
+        assert.strictEqual(Uglify.simple_glob(glob)[0], glob);
+        assert.throws(function() {
+            Uglify.minify(glob);
+        }, "should throw file not found");
+    });
+    it("should handle special characters in glob string", function() {
+        var result = Uglify.minify("test/input/issue-1632/^{*}[???](*)+$.??");
+        assert.strictEqual(result.code, "console.log(x);");
+    });
+    it("should handle array of glob strings - matching and otherwise", function() {
+        var dir = "test/input/issue-1242";
+        var matches = Uglify.simple_glob([
+            path.join(dir, "b*.es5"),
+            path.join(dir, "z*.es5"),
+            path.join(dir, "*.js"),
+        ]);
+        assert.strictEqual(matches.length, 4);
+        assert.strictEqual(matches[0], path.join(dir, "bar.es5"));
+        assert.strictEqual(matches[1], path.join(dir, "baz.es5"));
+        assert.strictEqual(matches[2], path.join(dir, "z*.es5"));
+        assert.strictEqual(matches[3], path.join(dir, "qux.js"));
+    });
 });