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/* libquvi
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* Copyright (C) 2013 Toni Gundogdu <legatvs@gmail.com>
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*
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* This file is part of libquvi <http://quvi.sourceforge.net/>.
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public
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* License as published by the Free Software Foundation, either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General
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* Public License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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/*
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* NOTE: The error messages produced in these functions are intended for
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* developers. They would typically be seen when a new script is
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* being developed or an old one is being maintained.
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*
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* These messages should be clear, indicating the actual error,
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* minimizing the time spent on locating the problem in the script.
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*/
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#include "config.h"
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#include <lauxlib.h>
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#include <glib.h>
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#include "quvi.h"
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/* -- */
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#include "_quvi_s.h"
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#include "_quvi_subtitle_s.h"
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#include "_quvi_script_s.h"
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/* -- */
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#include "misc/subtitle.h"
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#include "lua/setfield.h"
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#include "lua/chk.h"
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#include "lua/def.h"
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static const gchar script_func[] = "parse";
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/* Verify that the language has an ID (if there are >1 languages). */
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static void _chk_lang_id(lua_State *l, _quvi_subtitle_type_t qst,
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_quvi_subtitle_lang_t qsl, const gchar *script_path,
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const gint i)
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{
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if (g_slist_length(qst->languages) <2)
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return;
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if (qsl->id->len ==0)
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{
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g_warning("%s: %s: `qargs.%s[%d].%s' should not be empty; "
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"each language should have an ID when there are >1 languages",
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script_path, script_func, SUS_SUBTITLES, i, SUSSL_ID);
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}
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}
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typedef void (*foreach_cb)(lua_State*, _quvi_subtitle_type_t,
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const gchar*, const gint);
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/* Process a "sublevel" of a dictionary, e.g. qargs.subtitles.lang */
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static void _chk_subtitle_sublevel(lua_State *l, const gchar *level,
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_quvi_subtitle_type_t qst,
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const gchar *script_path,
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const foreach_cb cb, const gint i)
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{
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if (lua_isstring(l, LI_KEY) && lua_istable(l, LI_VALUE))
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{
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if (g_strcmp0(lua_tostring(l, LI_KEY), level) ==0)
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cb(l, qst, script_path, i);
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}
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}
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/* Return a new language handle. */
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static gpointer _subtitle_lang_new(_quvi_subtitle_type_t qst)
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{
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_quvi_subtitle_lang_t qsl = g_new0(struct _quvi_subtitle_lang_s, 1);
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/* Handle. */
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qsl->handle.quvi = qst->handle.quvi;
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/* Strings. */
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qsl->translated = g_string_new(NULL);
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qsl->original = g_string_new(NULL);
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qsl->code = g_string_new(NULL);
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qsl->url = g_string_new(NULL);
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qsl->id = g_string_new(NULL);
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/* double */
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qsl->format = qst->format;
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return (qsl);
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}
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/* Return a new data handle. */
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static gpointer _subtitle_type_new(const _quvi_subtitle_t qsub)
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{
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_quvi_subtitle_type_t qst = g_new0(struct _quvi_subtitle_type_s, 1);
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/* Handle. */
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qst->handle.quvi = qsub->handle.quvi;
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/* double. */
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qst->format = -1;
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qst->type = -1;
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return (qst);
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}
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/* Must have at least one language URL. */
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static _quvi_subtitle_lang_t _chk_url(lua_State *l, const gchar *script_path,
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_quvi_subtitle_lang_t qsl, gint i)
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{
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if (qsl->url->len ==0)
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{
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m_subtitle_lang_free(qsl);
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luaL_error(l, "%s: %s: must return `qargs.%s[%d].%s[1].%s'",
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script_path, script_func, SUS_SUBTITLES, i,
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SUSS_LANG, SUSSL_URL);
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}
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return (qsl);
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}
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/* Return a new lang handle. */
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static _quvi_subtitle_lang_t _new_lang(lua_State *l, const gchar *script_path,
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const _quvi_subtitle_type_t qst,
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const gint i)
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{
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_quvi_subtitle_lang_t qsl = _subtitle_lang_new(qst);
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lua_pushnil(l);
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while (lua_next(l, LI_KEY))
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{
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l_chk_assign_s(l, SUSSL_TRANSLATED, qsl->translated, TRUE, FALSE);
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l_chk_assign_s(l, SUSSL_ORIGINAL, qsl->original, TRUE, FALSE);
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l_chk_assign_s(l, SUSSL_CODE, qsl->code, TRUE, FALSE);
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l_chk_assign_s(l, SUSSL_URL, qsl->url, TRUE, TRUE);
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l_chk_assign_s(l, SUSSL_ID, qsl->id, TRUE, FALSE);
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lua_pop(l, 1);
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}
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return (_chk_url(l, script_path, qsl, i));
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}
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/* For each qargs.subtitles.lang property. */
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static void _foreach_lang_property(lua_State *l, _quvi_subtitle_type_t qst,
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const gchar *script_path, const gint i)
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{
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_quvi_subtitle_lang_t qsl;
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gint j;
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lua_pushnil(l);
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j = 0;
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while (lua_next(l, LI_KEY))
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{
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if (lua_istable(l, LI_VALUE))
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{
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qsl = _new_lang(l, script_path, qst, ++j);
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_chk_lang_id(l, qst, qsl, script_path, j);
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qst->languages = g_slist_prepend(qst->languages, qsl);
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}
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lua_pop(l, 1);
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}
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}
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/* Verify required subtitle data properties. */
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static gpointer _chk_req_type(lua_State *l, _quvi_subtitle_type_t qst,
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const gint i, const gchar *script_path)
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{
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static const gchar *_E = "%s: %s: must return `qargs.%s[%d].%s'";
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if (qst->format <0)
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{
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luaL_error(l, _E, script_path, script_func,
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SUS_SUBTITLES, i, SUSS_FORMAT);
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}
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if (qst->type <0)
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{
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luaL_error(l, _E, script_path, script_func,
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SUS_SUBTITLES, i, SUSS_TYPE);
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}
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/* Not all videos have subtitles of any kind. */
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if (g_slist_length(qst->languages) ==0)
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{
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m_subtitle_type_free(qst);
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return (NULL);
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}
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#ifdef _1
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if (g_slist_length(qst->languages) ==0)
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{
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luaL_error(l, "%s: %s: qargs.%s[%d].%s must not be empty",
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script_path, script_func, SUS_SUBTITLES, i, SUSS_LANG);
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}
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#endif
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qst->languages = g_slist_reverse(qst->languages);
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return (qst);
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}
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/* Return a new data handle. */
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static _quvi_subtitle_type_t _new_type(lua_State *l, _quvi_subtitle_t qsub,
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const gchar *script_path, const gint i)
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{
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_quvi_subtitle_type_t qst = _subtitle_type_new(qsub);
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lua_pushnil(l);
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while (lua_next(l, LI_KEY))
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{
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_chk_subtitle_sublevel(l, SUSS_LANG, qst, script_path,
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_foreach_lang_property, i);
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l_chk_assign_n(l, SUSS_FORMAT, &qst->format);
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l_chk_assign_n(l, SUSS_TYPE, &qst->type);
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lua_pop(l, 1);
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}
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return (_chk_req_type(l, qst, i, script_path));
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}
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/* For each qargs.subtitle */
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static void _foreach_subtitle(lua_State *l, _quvi_subtitle_t qsub,
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const gchar *script_path)
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{
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_quvi_subtitle_type_t qst;
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gint i;
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lua_pushnil(l);
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i = 0;
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while (lua_next(l, LI_KEY))
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{
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if (lua_istable(l, LI_VALUE))
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{
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qst = _new_type(l, qsub, script_path, ++i);
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if (qst != NULL)
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qsub->types = g_slist_prepend(qsub->types, qst);
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}
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lua_pop(l, 1);
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}
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qsub->types = g_slist_reverse(qsub->types);
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}
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static void _chk_subtitles(lua_State *l, _quvi_subtitle_t qsub,
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const gchar *script_path)
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{
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lua_pushstring(l, SUS_SUBTITLES);
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lua_gettable(l, LI_KEY);
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if (lua_istable(l, LI_VALUE))
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_foreach_subtitle(l, qsub, script_path);
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else
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{
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static const gchar *_E =
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"%s: %s: must return a dictionary containing the `qargs.%s'";
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luaL_error(l, _E, script_path, script_func, SUS_SUBTITLES);
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}
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lua_pop(l, 1);
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}
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extern gint c_reset(_quvi_t);
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|
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QuviError l_exec_subtitle_script_parse(gpointer p, GSList *sl)
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{
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_quvi_subtitle_t qsub;
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Packit |
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_quvi_script_t qs;
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Packit |
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lua_State *l;
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qsub = (_quvi_subtitle_t) p;
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l = qsub->handle.quvi->handle.lua;
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Packit |
3ff1e7 |
c_reset(qsub->handle.quvi);
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
qs = (_quvi_script_t) sl->data;
|
|
Packit |
3ff1e7 |
lua_getglobal(l, script_func);
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
if (!lua_isfunction(l, -1))
|
|
Packit |
3ff1e7 |
{
|
|
Packit |
3ff1e7 |
luaL_error(l, "%s: the function `%s' was not found",
|
|
Packit |
3ff1e7 |
qs->fpath->str, script_func);
|
|
Packit |
3ff1e7 |
}
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
lua_newtable(l);
|
|
Packit |
3ff1e7 |
l_set_reg_userdata(l, USERDATA_QUVI_T, (gpointer) qsub->handle.quvi);
|
|
Packit |
3ff1e7 |
l_setfield_s(l, SUS_INPUT_URL, qsub->url.input->str, -1);
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
if (lua_pcall(l, 1, 1, 0))
|
|
Packit |
3ff1e7 |
{
|
|
Packit |
3ff1e7 |
g_string_assign(qsub->handle.quvi->status.errmsg, lua_tostring(l, -1));
|
|
Packit |
3ff1e7 |
return (QUVI_ERROR_SCRIPT);
|
|
Packit |
3ff1e7 |
}
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
if (!lua_istable(l, -1))
|
|
Packit |
3ff1e7 |
{
|
|
Packit |
3ff1e7 |
static const gchar *_E =
|
|
Packit |
3ff1e7 |
"%s: %s: must return a dictionary, this is typically the `qargs'";
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
luaL_error(l, _E, qs->fpath->str, script_func);
|
|
Packit |
3ff1e7 |
}
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
_chk_subtitles(l, qsub, qs->fpath->str);
|
|
Packit |
3ff1e7 |
lua_pop(l, 1);
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
return (QUVI_OK);
|
|
Packit |
3ff1e7 |
}
|
|
Packit |
3ff1e7 |
|
|
Packit |
3ff1e7 |
/* vim: set ts=2 sw=2 tw=72 expandtab: */
|