From 544f192665cfd92a5ca3611dc1393d4cfeacd22f Mon Sep 17 00:00:00 2001
From: Toni Gundogdu <legatvs@gmail.com>
Date: Sat, 12 Jan 2013 17:26:32 +0200
Subject: [PATCH] lua: Add exec_subtitle_export_script_ident.c

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
---
 src/lua/exec_subtitle_export_script_ident.c | 112 ++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 src/lua/exec_subtitle_export_script_ident.c

diff --git a/src/lua/exec_subtitle_export_script_ident.c b/src/lua/exec_subtitle_export_script_ident.c
new file mode 100644
index 0000000..ff88c59
--- /dev/null
+++ b/src/lua/exec_subtitle_export_script_ident.c
@@ -0,0 +1,112 @@
+/* libquvi
+ * Copyright (C) 2013  Toni Gundogdu <legatvs@gmail.com>
+ *
+ * This file is part of libquvi <http://quvi.sourceforge.net/>.
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public
+ * License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General
+ * Public License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * NOTE: The error messages produced in these functions are intended for
+ *       developers. They would typically be seen when a new script is
+ *       being developed or an old one is being maintained.
+ *
+ *       These messages should be clear, indicating the actual error,
+ *       minimizing the time spent on locating the problem in the script.
+ */
+
+#include "config.h"
+
+#include <lauxlib.h>
+#include <glib.h>
+
+#include "quvi.h"
+/* -- */
+#include "_quvi_s.h"
+#include "_quvi_subtitle_export_s.h"
+#include "_quvi_script_s.h"
+/* -- */
+#include "lua/setfield.h"
+#include "lua/chk.h"
+#include "lua/def.h"
+
+static const gchar script_func[] = "ident";
+
+static QuviError _chk_results(lua_State *l, _quvi_script_t qs)
+{
+  gboolean r = FALSE;
+
+  lua_pushnil(l);
+  while (lua_next(l, LI_KEY))
+    {
+      l_chk_assign_s(l, SUES_EXPORT_FORMAT, qs->export.format, TRUE);
+      l_chk_assign_b(l, SUES_CAN_EXPORT_DATA, &r);
+      lua_pop(l, 1);
+    }
+
+  if (qs->export.format->len ==0)
+    {
+      luaL_error(l, "%s: %s: the returned dictionary must contain "
+                 "a string value `%s'",
+                 qs->fpath->str, script_func, SUES_EXPORT_FORMAT);
+    }
+  lua_pop(l, 1);
+
+  return ((r == TRUE)
+          ? QUVI_OK
+          : QUVI_ERROR_NO_SUPPORT);
+}
+
+QuviError l_exec_subtitle_export_script_ident(gpointer p, GSList *sl)
+{
+  _quvi_subtitle_export_t qse;
+  _quvi_script_t qs;
+  lua_State *l;
+
+  qse = (_quvi_subtitle_export_t) p;
+  l = qse->handle.quvi->handle.lua;
+
+  qs = (_quvi_script_t) sl->data;
+  lua_pushnil(l);
+
+  if (luaL_dofile(l, qs->fpath->str))
+    luaL_error(l, "%s", lua_tostring(l, -1));
+
+  lua_getglobal(l, script_func);
+
+  if (!lua_isfunction(l, -1))
+    {
+      static const gchar *_E = "%s: the function `%s' was not found";
+      luaL_error(l, _E, qs->fpath->str, script_func);
+    }
+
+  lua_newtable(l);
+  l_setfield_s(l, SUES_TO_FORMAT, qse->format.to->str);
+
+  if (lua_pcall(l, 1, 1, 0))
+    {
+      g_string_assign(qse->handle.quvi->status.errmsg, lua_tostring(l, -1));
+      return (QUVI_ERROR_SCRIPT);
+    }
+
+  if (!lua_istable(l, -1))
+    {
+      luaL_error(l, "%s: %s: must return a dictionary",
+                 qs->fpath->str, script_func);
+    }
+  return (_chk_results(l, qs));
+}
+
+/* vim: set ts=2 sw=2 tw=72 expandtab: */
-- 
2.11.4.GIT