Debug: add a write_debug function

write_debug writes in a Scratch buffer named '*debug*', so that debug
messages are accessibles from within kakoune

1 files changed, 27 insertions, 0 deletions

diff --git a/src/debug.cc b/src/debug.cc
new file mode 100644
index 00000000..2aa7b179
--- /dev/null
+++ b/src/debug.cc
@@ -0,0 +1,27 @@
+#include "debug.hh"
+
+#include "assert.hh"
+#include "buffer_manager.hh"
+
+namespace Kakoune
+{
+
+static Buffer& get_or_create_debug_buffer()
+{
+    static const std::string debug_buffer_name("*debug*");
+    Buffer* buffer = BufferManager::instance().get_buffer(debug_buffer_name);
+
+    if (not buffer)
+        buffer = new Buffer(debug_buffer_name, Buffer::Type::Scratch);
+
+    assert(buffer);
+    return *buffer;
+}
+
+void write_debug(const std::string& str)
+{
+    Buffer& debug_buffer = get_or_create_debug_buffer();
+    debug_buffer.insert(debug_buffer.end(), str);
+}
+
+}