mark all functions in headers with VIS_EXPORT or VIS_INTERNAL

if vis actually wants to be a library exported symbols may need
mark up depending on the platform (eg. __declspec(dllexport)).
This needs to be hidden behind a macro because the way you export
is not the same on every platform.

I did this based on the assumption that vis.h was supposed to be
the only interface to the "vis" library. Since nobody actually
uses vis as a library I have no idea if this is actually correct.

Anyway marking up all prototypes like this allows for one to
convert all functions to static if a single translation unit is
used by inserting at the start:

 #define VIS_INTERNAL static
 #define VIS_EXPORT   static

1 files changed, 5 insertions, 5 deletions

diff --git a/vis-lua.h b/vis-lua.h
index 76e7029..db969de 100644
--- a/vis-lua.h
+++ b/vis-lua.h
@@ -15,20 +15,20 @@ typedef void* lua_CFunction;
 #include "vis-subprocess.h"
 
 /* add a directory to consider when loading lua files */
-bool vis_lua_path_add(Vis*, const char *path);
+VIS_INTERNAL bool vis_lua_path_add(Vis*, const char *path);
 /* get semicolon separated list of paths to load lua files
  * (*lpath = package.path) and Lua C modules (*cpath = package.cpath)
  * both these pointers need to be free(3)-ed by the caller */
-bool vis_lua_paths_get(Vis*, char **lpath, char **cpath);
+VIS_INTERNAL bool vis_lua_paths_get(Vis*, char **lpath, char **cpath);
 
 /* various event handlers, triggered by the vis core */
 #if !CONFIG_LUA
 #define vis_event_mode_insert_input  vis_insert_key
 #define vis_event_mode_replace_input vis_replace_key
 #else
-void vis_event_mode_insert_input(Vis*, const char *key, size_t len);
-void vis_event_mode_replace_input(Vis*, const char *key, size_t len);
+VIS_INTERNAL void vis_event_mode_insert_input(Vis*, const char *key, size_t len);
+VIS_INTERNAL void vis_event_mode_replace_input(Vis*, const char *key, size_t len);
 #endif
-void vis_lua_process_response(Vis *, const char *, char *, size_t, ResponseType);
+VIS_INTERNAL void vis_lua_process_response(Vis *, const char *, char *, size_t, ResponseType);
 
 #endif