1 files changed, 78 insertions, 0 deletions
diff --git a/src/debug/demangle.cpp b/src/debug/demangle.cpp
new file mode 100644
index 0000000..60e1f17
--- /dev/null
+++ b/src/debug/demangle.cpp
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Inkscape::Debug::demangle - demangle C++ symbol names
+ *
+ * Authors:
+ *   MenTaLguY <mental@rydia.net>
+ *
+ * Copyright (C) 2006 MenTaLguY
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <cstdio>
+#include <cstring>
+#include <map>
+#include <memory>
+#include <string>
+#include "debug/demangle.h"
+#include "util/format.h"
+
+namespace Inkscape {
+
+namespace Debug {
+
+namespace {
+
+char const *demangle_helper(char const *name) {
+    char buffer[1024];
+    char const *result;
+    FILE *stream=popen(Util::format("c++filt %s", name), "r");
+    if (fgets(buffer, sizeof(buffer), stream)) {
+        size_t len=strlen(buffer);
+        if ( buffer[len-1] == '\n' ) {
+            buffer[len-1] = '\000';
+        }
+        result = strdup(buffer);
+    } else {
+        result = name;
+    }
+    pclose(stream);
+    return result;
+}
+
+struct string_less_than {
+    bool operator()(char const *a, char const *b) const {
+        return ( strcmp(a, b) < 0 );
+    }
+};
+
+typedef std::map<char const *, std::shared_ptr<std::string>, string_less_than> MangleCache;
+MangleCache mangle_cache;
+
+}
+
+std::shared_ptr<std::string> demangle(char const *name) {
+    MangleCache::iterator found=mangle_cache.find(name);
+    if ( found != mangle_cache.end() ) {
+        return (*found).second;
+    }
+
+    char const *result = demangle_helper(name);
+    return mangle_cache[name] = std::make_shared<std::string>(result);
+}
+
+}
+
+}
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :