Split CE code into multiple files

ce/context.c

@@ -0,0 +1,29 @@
+#include "context.h"
+#include "strbuf.h"
+#include <liballoc.h>
+#include <printf.h>
+#include <stdarg.h>
+#include <stddef.h>
+
+void cprintf (struct context* context, const char* fmt, ...) {
+  va_list args;
+  va_start (args, fmt);
+
+  char* buf = malloc (CPRINTF_BUF_MAX);
+
+  if (buf == NULL) {
+    va_end (args);
+    return;
+  }
+
+  int len = vsnprintf (buf, CPRINTF_BUF_MAX, fmt, args);
+
+  va_end (args);
+
+  if (len > 0) {
+    for (int i = 0; i < len; i++)
+      strbuf_append (&context->strbuf, buf[i]);
+  }
+
+  free (buf);
+}