Add a ShellManager which handles executing shell commands

ShellManager provides shell commands with environement variable
to retrieve some internal values in the shell parameters.

1 files changed, 32 insertions, 0 deletions

diff --git a/src/shell_manager.hh b/src/shell_manager.hh
new file mode 100644
index 00000000..b67136aa
--- /dev/null
+++ b/src/shell_manager.hh
@@ -0,0 +1,32 @@
+#ifndef shell_manager_hh_INCLUDED
+#define shell_manager_hh_INCLUDED
+
+#include "utils.hh"
+#include "regex.hh"
+
+#include <unordered_map>
+
+namespace Kakoune
+{
+
+class Context;
+typedef std::function<String (const Context&)> EnvVarRetriever;
+
+class ShellManager : public Singleton<ShellManager>
+{
+public:
+    ShellManager();
+
+    String eval(const String& cmdline, const Context& context);
+
+    void register_env_var(const String& name, EnvVarRetriever retriever);
+
+private:
+    Regex                                       m_regex;
+    std::unordered_map<String, EnvVarRetriever> m_env_vars;
+};
+
+}
+
+#endif // shell_manager_hh_INCLUDED
+