// Command exectuion
void Push_Parameter(Application_Links *app, Dynamic param, Dynamic value)
char* Push_Memory(Application_Links *app, int len)
void Exec_Command_Keep_Stack(Application_Links *app, int command_id)
void Clear_Parameters(Application_Links *app)

// File system navigation
int Directory_Get_Hot(Application_Links *app, char *out, int capacity)
int Get_4ed_Path(Application_Links *app, char *out, int capacity)
int File_Exists(Application_Links *app, char *filename, int len)
int Directory_CD(Application_Links *app, char *dir, int *len, int capacity, char *rel_path, int rel_len)
File_List Get_File_List(Application_Links *app, char *dir, int len)
void Free_File_List(Application_Links *app, File_List list)

// Direct buffer manipulation
Buffer_Summary Get_Buffer_First(Application_Links *app)
void Get_Buffer_Next(Application_Links *app, Buffer_Summary *buffer)

Buffer_Summary Get_Buffer(Application_Links *app, int index)
Buffer_Summary Get_Active_Buffer(Application_Links *app)
Buffer_Summary Get_Parameter_Buffer(Application_Links *app, int param_index)
Buffer_Summary Get_Buffer_By_Name(Application_Links *app, char *filename, int len)

// TODO(allen): Need more flexible seek system somehow.  Regex?  Just expose the text stream to the user?
int Buffer_Seek_Delimiter(Application_Links *app, Buffer_Summary *buffer, int start, char delim, int seek_forward, int *out)
int Buffer_Seek_String(Application_Links *app, Buffer_Summary *buffer, int start, char *str, int len, int seek_forward, int *out)
int Buffer_Seek_String_Insensitive(Application_Links *app, Buffer_Summary *buffer, int start, char *str, int len, int seek_forward, int *out)

int Refresh_Buffer(Application_Links *app, Buffer_Summary *buffer)
int Buffer_Read_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *out)
int Buffer_Replace_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len)
int Buffer_Set_Pos(Application_Links *app, Buffer_Summary *buffer, int pos)

// File view manipulation
View_Summary Get_View_First(Application_Links *app)
void Get_View_Next(Application_Links *app, View_Summary *view)

View_Summary Get_View(Application_Links *app, int index)
View_Summary Get_Active_View(Application_Links *app)

int Refresh_View(Application_Links *app, View_Summary *view)
Full_Cursor View_Compute_Cursor(Application_Links *app, View_Summary *view, Buffer_Seek seek)
int View_Set_Cursor(Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x)
int View_Set_Mark(Application_Links *app, View_Summary *view, Buffer_Seek seek)
int View_Set_Highlight(Application_Links *app, View_Summary *view, int start, int end, int turn_on)
int View_Set_Buffer(Application_Links *app, View_Summary *view, int buffer_id)

// Directly get user input
User_Input Get_User_Input(Application_Links *app, unsigned int get_type, unsigned int abort_type)
User_Input Get_Command_Input(Application_Links *app)
Event_Message Get_Event_Message(Application_Links *app)

// Queries and information display
int Start_Query_Bar(Application_Links *app, Query_Bar *bar, unsigned int flags)
void End_Query_Bar(Application_Links *app, Query_Bar *bar, unsigned int flags)
void Print_Message(Application_Links *app, char *string, int len)
GUI_Functions* Get_GUI_Functions(Application_Links *app)
GUI* Get_GUI(Application_Links *app, int view_id)

// Color settings
void Change_Theme(Application_Links *app, char *name, int len)
void Change_Font(Application_Links *app, char *name, int len)
void Set_Theme_Colors(Application_Links *app, Theme_Color *colors, int count)