/** \file mood.c Paraslash's mood handling functions. */
+#include <fnmatch.h>
#include "para.h"
#include "error.h"
#include "afh.h"
/**
* Contains statistical data of the currently admissible audio files.
*
- * It is used to assign normalized score values to each admissbile audio file.
+ * It is used to assign normalized score values to each admissible audio file.
*/
struct afs_statistics {
- /** sum of num played over all admissible files */
+ /** Sum of num played over all admissible files. */
int64_t num_played_sum;
- /** sum of last played times over all admissible files */
+ /** Sum of last played times over all admissible files. */
int64_t last_played_sum;
- /** quadratic deviation of num played time */
+ /** Quadratic deviation of num played time. */
int64_t num_played_qd;
- /** quadratic deviation of last played time */
+ /** Quadratic deviation of last played time. */
int64_t last_played_qd;
- /** number of admissible files */
+ /** Number of admissible files */
unsigned num;
};
struct afs_statistics statistics;
* argument depends on the mood method this function is used for. It usually is
* the argument given at the end of a mood line.
*
- * Mood score functions must return values between -100 and +100 inclisively.
+ * Mood score functions must return values between -100 and +100 inclusively.
* Boolean score functions should always return either -100 or +100.
*
* \sa struct mood_method, mood_parser.
*/
-typedef int mood_score_function(const struct osl_row*, void *);
+typedef int mood_score_function(const char *path, const struct afs_info *afsi,
+ const struct audio_format_info *afhi, const void *data);
/**
- * Preprocess a mood line.
+ * Pre-process a mood line.
*
* The mood_parser of a mood_method is called once at mood open time for each
* line of the current mood definition that contains the mood_method's name as
* mood_parser must determine whether the line is syntactically correct and
* return a positive value if so and a negative value otherwise.
*
- * Some mood parsers preprocess the data given in the mood line to compute a
+ * Some mood parsers pre-process the data given in the mood line to compute a
* structure which depends of the particular mood_method and which is used
* later in the mood_score_function of the mood_method. The mood_parser may
* store a pointer to its structure via the second argument.
*
* When a mood is opened, each line of its definition is investigated, and a
* corresponding mood item is produced. Each mood line starts with \p accept,
- * \p deny, or \p score which determins the type of the mood line. For each
+ * \p deny, or \p score which determines the type of the mood line. For each
* such type a linked list is maintained whose entries are the mood items.
*
* \sa mood_item, mood_open().
return res;
}
-static int mm_played_rarely_score_function(const struct osl_row *row,
- __a_unused void *ignored)
+static int mm_no_attributes_set_parser(const char *arg, __a_unused void **ignored)
+{
+ if (arg && *arg)
+ PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
+ return 1;
+}
+
+static int mm_no_attributes_set_score_function(__a_unused const char *path,
+ const struct afs_info *afsi,
+ __a_unused const struct audio_format_info *afhi,
+ __a_unused const void *data)
+{
+ if (!afsi->attributes)
+ return 100;
+ return -100;
+}
+
+static int mm_played_rarely_score_function(__a_unused const char *path,
+ const struct afs_info *afsi,
+ __a_unused const struct audio_format_info *afhi,
+ __a_unused const void *data)
{
- struct afs_info afsi;
unsigned num;
- int ret = get_afsi_of_row(row, &afsi);
+ int ret = get_num_admissible_files(&num);
if (ret < 0)
return 0;
- ret = get_num_admissible_files(&num);
- if (ret < 0)
- return 0;
- if (statistics.num_played_sum - num * afsi.num_played
+ if (statistics.num_played_sum - num * afsi->num_played
> int_sqrt(statistics.num_played_qd * num))
return 100;
return -100;
static int mm_played_rarely_parser(const char *arg, __a_unused void **ignored)
{
- if (*arg)
+ if (arg && *arg)
PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
return 1;
}
-static int mm_name_like_score_function(const struct osl_row *row, void *preg)
+static int mm_name_like_score_function(const char *path,
+ __a_unused const struct afs_info *afsi,
+ __a_unused const struct audio_format_info *afhi,
+ const void *data)
{
- char *path;
- int ret = get_audio_file_path_of_row(row, &path);
-
- if (ret < 0)
- return 0;
- ret = regexec((regex_t *)preg, path, 42, NULL, 0);
- return (ret == REG_NOMATCH)? -100 : 100;
+ if (fnmatch(data, path, 0))
+ return -100;
+ return 100;
}
-static int mm_name_like_parser(const char *arg, void **regex)
+static int mm_name_like_parser(const char *arg, void **data)
{
- regex_t *preg = para_malloc(sizeof(*preg));
- int ret = regcomp(preg, arg, REG_NOSUB);
-
- if (ret) {
- free(preg);
- return -E_MOOD_REGEX;
- }
- *regex = preg;
+ *data = para_strdup(arg);
return 1;
}
-static void mm_name_like_cleanup(void *preg)
+static void mm_name_like_cleanup(void *data)
{
- regfree(preg);
- free(preg);
+ free(data);
}
static int mm_is_set_parser(const char *arg, void **bitnum)
return ret;
}
-static int mm_is_set_score_function(const struct osl_row *row, void *bitnum)
+static int mm_is_set_score_function(__a_unused const char *path,
+ __a_unused const struct afs_info *afsi,
+ __a_unused const struct audio_format_info *afhi,
+ const void *data)
{
- unsigned char *bn = bitnum;
- struct afs_info afsi;
- int ret = get_afsi_of_row(row, &afsi);
-
- if (ret < 0)
- return 0;
- if (afsi.attributes & (1ULL << *bn))
+ const unsigned char *bn = data;
+ if (afsi->attributes & (1ULL << *bn))
return 100;
return -100;
}
-/* returns 1 if row matches score item, -1 otherwise */
+/* returns 1 if row matches score item, negative otherwise */
static int add_item_score(const struct osl_row *row, struct mood_item *item, long *score,
long *score_arg_sum)
{
- int ret = 100;
+ struct afs_info afsi;
+ struct audio_format_info afhi;
+ char *path;
+ int ret;
*score_arg_sum += item->random_score? 100 : PARA_ABS(item->score_arg);
+ ret = 100;
if (item->method) {
- ret = item->method->score_function(row, item->parser_data);
+ ret = get_afsi_of_row(row, &afsi);
+ if (ret< 0)
+ return ret;
+ ret = get_afhi_of_row(row, &afhi);
+ if (ret< 0)
+ return ret;
+ ret = get_audio_file_path_of_row(row, &path);
+ if (ret< 0)
+ return ret;
+ ret = item->method->score_function(path, &afsi, &afhi,
+ item->parser_data);
if ((ret < 0 && !item->logical_not) || (ret >= 0 && item->logical_not))
return -1; /* no match */
}
return 1;
}
+#define DEFINE_MOOD_METHOD(_name) \
+.parser = mm_ ## _name ## _parser, \
+.score_function = mm_ ## _name ## _score_function, \
+.name = #_name
+
+#define DEFINE_MOOD_METHOD_WITH_CLEANUP(_name) \
+ DEFINE_MOOD_METHOD(_name), \
+ .cleanup = mm_ ## _name ## _cleanup
+
static const struct mood_method mood_methods[] = {
-{
- .parser = mm_played_rarely_parser,
- .score_function = mm_played_rarely_score_function,
- .name = "played_rarely"
-},
-{
- .parser = mm_is_set_parser,
- .score_function = mm_is_set_score_function,
- .name = "is_set"
-},
-{
- .parser = mm_name_like_parser,
- .score_function = mm_name_like_score_function,
- .cleanup = mm_name_like_cleanup,
- .name = "name_like"
-},
-{
- .parser = NULL
-}
+ {DEFINE_MOOD_METHOD(no_attributes_set)},
+ {DEFINE_MOOD_METHOD(played_rarely)},
+ {DEFINE_MOOD_METHOD(is_set)},
+ {DEFINE_MOOD_METHOD_WITH_CLEANUP(name_like)},
+ {.parser = NULL}
};
static void cleanup_list_entry(struct mood_item *item)
*
* \param n Number of elements.
* \param old_qd The quadratic deviation before the change.
- * \param old_val The value that was repaced.
+ * \param old_val The value that was replaced.
* \param new_val The replacement value.
* \param old_sum The sum of all elements before the update.
*
}
/**
- * Delete one entry from the statitics and from the score table.
+ * Delete one entry from the statistics and from the score table.
*
* \param aft_row The audio file which is no longer admissible.
*
projects / paraslash.git / blobdiff