+++ /dev/null
-/*
- * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
-
-/** \file mm.c Paraslash's mood methods. */
-
-#include <regex.h>
-#include <fnmatch.h>
-#include <osl.h>
-
-#include "para.h"
-#include "error.h"
-#include "string.h"
-#include "afh.h"
-#include "afs.h"
-#include "mm.h"
-
-/** The comparators for numeric mood methods (year, bitrate, ...). */
-#define MOOD_COMPARATORS \
- MC(LESS, <) \
- MC(LESS_OR_EQUAL, <=) \
- MC(EQUAL, =) \
- MC(EQUAL2, ==) \
- MC(NOT_EQUAL, !=) \
- MC(NOT_EQUAL2, <>) \
- MC(GREATER, >) \
- MC(GREATER_OR_EQUAL, >=) \
-
-/** Prefix mood comparator name with "_MC", example: MC_LESS. */
-#define MC(a, b) MC_ ## a,
-/** Each mood comparator is identified by an integer of this type. */
-enum mood_comparator_id {MOOD_COMPARATORS NUM_MOOD_COMPARATORS};
-#undef MC
-/** Stringfied mood comparator, example: "<". */
-#define MC(a, b) # b,
-/** Array of mood comparators represented as C strings ("<", "<=", ...). */
-static const char *mood_comparators[] = {MOOD_COMPARATORS};
-#undef MC
-
-static int parse_mood_comparator(const char *word)
-{
- int i;
-
- for (i = 0; i < NUM_MOOD_COMPARATORS; i++)
- if (!strcmp(word, mood_comparators[i]))
- return i;
- return -E_MOOD_SYNTAX;
-}
-
-struct mm_compare_num_data {
- /** <, <=, =, !=, >=, or >. */
- enum mood_comparator_id id;
- /** The value given at the mood line. */
- int32_t arg;
-};
-
-static int mm_compare_num_score_function(int32_t val,
- const struct mm_compare_num_data *cnd)
-{
- int res;
- int32_t arg = cnd->arg;
-
- switch (cnd->id) {
- case MC_LESS:
- res = val < arg; break;
- case MC_LESS_OR_EQUAL:
- res = val <= arg; break;
- case MC_EQUAL:
- case MC_EQUAL2:
- res = val == arg; break;
- case MC_NOT_EQUAL:
- case MC_NOT_EQUAL2:
- res = val != arg; break;
- case MC_GREATER:
- res = val > arg; break;
- case MC_GREATER_OR_EQUAL:
- res = val >= arg; break;
- default:
- PARA_EMERG_LOG("BUG: invalid mood comparator\n");
- exit(EXIT_FAILURE);
- }
- return res? 100 : -100;
-}
-
-static int mm_compare_num_parser(int argc, char **argv, void **private)
-{
- int ret;
- enum mood_comparator_id id;
- int32_t arg;
- struct mm_compare_num_data *cnd;
- if (argc != 2)
- return -E_MOOD_SYNTAX;
- ret = parse_mood_comparator(argv[1]);
- if (ret < 0)
- return ret;
- id = ret;
- ret = para_atoi32(argv[2], &arg);
- if (ret < 0)
- return ret;
- cnd = para_malloc(sizeof(struct mm_compare_num_data));
- cnd->id = id;
- cnd->arg = arg;
- *private = cnd;
- return 1;
-}
-
-static int mm_regex_parser(int argc, char **argv, void **private)
-{
- regex_t *preg;
- int ret;
-
- if (argc != 1)
- return -E_MOOD_SYNTAX;
- preg = para_malloc(sizeof(*preg));
- ret = para_regcomp(preg, argv[1], REG_EXTENDED | REG_NOSUB);
- if (ret < 0) {
- free(preg);
- return ret;
- }
- *private = preg;
- return 1;
-}
-
-static int mm_regex_score_function(const regex_t *preg, const char *pattern)
-{
- return regexec(preg, pattern, 0, NULL, 0) == 0? 100 : -100;
-}
-
-static void mm_regex_cleanup(void *private)
-{
- regex_t *preg = private;
- regfree(preg);
- free(preg);
-}
-
-static int mm_artist_matches_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_regex_score_function(private, afhi->tags.artist);
-}
-
-static int mm_title_matches_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_regex_score_function(private, afhi->tags.title);
-}
-
-static int mm_album_matches_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_regex_score_function(private, afhi->tags.album);
-}
-
-static int mm_comment_matches_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_regex_score_function(private, afhi->tags.comment);
-}
-
-static int mm_bitrate_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afhi->bitrate, private);
-}
-
-static int mm_frequency_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afhi->frequency, private);
-}
-
-static int mm_channels_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afhi->channels, private);
-}
-
-static int mm_image_id_score_function(__a_unused const char *path,
- const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afsi->image_id, private);
-}
-
-static int mm_lyrics_id_score_function(__a_unused const char *path,
- const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afsi->lyrics_id, private);
-}
-
-static int mm_num_played_score_function(__a_unused const char *path,
- const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- const void *private)
-{
- return mm_compare_num_score_function(afsi->num_played, private);
-}
-
-struct mm_year_data {
- /** Comparator and year given at the mood line. */
- struct mm_compare_num_data *cnd;
- /** Used to detect Y2K issues. */
- int32_t current_year;
-};
-
-static int mm_year_parser(int argc, char **argv, void **private)
-{
- int ret;
- struct mm_year_data *mmyd = para_malloc(sizeof(*mmyd));
- time_t current_time;
- struct tm *gmt;
-
- ret = mm_compare_num_parser(argc, argv, (void **)&mmyd->cnd);
- if (ret < 0)
- goto err;
- current_time = time(NULL);
- gmt = gmtime(¤t_time);
- /* tm_year is the number of years since 1900 */
- mmyd->current_year = gmt->tm_year + 1900;
- *private = mmyd;
- return 1;
-err:
- free(mmyd);
- return ret;
-}
-
-static int mm_year_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- const struct mm_year_data *mmyd = private;
- int32_t tag_year;
- int ret = para_atoi32(afhi->tags.year, &tag_year);
-
- if (ret < 0) /* year tag not present or not a number */
- return -100;
- if (tag_year < 0)
- return -100;
- /* try to work around Y2K issues */
- if (tag_year < 100) {
- tag_year += 1900;
- if (tag_year + 100 <= mmyd->current_year)
- tag_year += 100; /* assume tag_year >= 2000 */
- }
- return mm_compare_num_score_function(tag_year, mmyd->cnd);
-}
-
-static void mm_year_cleanup(void *private)
-{
- struct mm_year_data *mmyd = private;
-
- free(mmyd->cnd);
- free(mmyd);
-}
-
-static int mm_no_attributes_set_parser(int argc, __a_unused char **argv,
- __a_unused void **ignored)
-{
- return argc? -E_MOOD_SYNTAX : 1;
-}
-
-static int mm_no_attributes_set_score_function(__a_unused const char *path,
- const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- __a_unused const void *data)
-{
- if (!afsi->attributes)
- return 100;
- return -100;
-}
-
-static int mm_path_matches_score_function(const char *path,
- __a_unused const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- const void *data)
-{
- if (fnmatch(data, path, 0))
- return -100;
- return 100;
-}
-
-static int mm_path_matches_parser(int argc, char **argv, void **data)
-{
- if (argc != 1)
- return -E_MOOD_SYNTAX;
- *data = para_strdup(argv[1]);
- return 1;
-}
-
-static void mm_path_matches_cleanup(void *data)
-{
- free(data);
-}
-
-static int mm_is_set_parser(int argc, char **argv, void **bitnum)
-{
- int ret;
- unsigned char c, *res;
-
- if (argc != 1)
- return -E_MOOD_SYNTAX;
- ret = get_attribute_bitnum_by_name(argv[1], &c);
- if (ret < 0)
- return ret;
- res = para_malloc(1);
- *res = c;
- *bitnum = res;
- return 1;
-}
-
-static int mm_is_set_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- __a_unused const struct afh_info *afhi,
- const void *data)
-{
- const unsigned char *bn = data;
- if (afsi->attributes & (1ULL << *bn))
- return 100;
- return -100;
-}
-
-#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
-
-#define DEFINE_REGEX_MOOD_METHOD(_name) \
- .name = #_name, \
- .parser = mm_regex_parser, \
- .score_function = mm_ ## _name ## _score_function, \
- .cleanup = mm_regex_cleanup
-
-#define DEFINE_COMPARE_NUM_MOOD_METHOD(_name) \
- .name = #_name, \
- .parser = mm_compare_num_parser, \
- .score_function = mm_ ## _name ## _score_function
-
-const struct mood_method mood_methods[] = {
- {DEFINE_MOOD_METHOD(no_attributes_set)},
- {DEFINE_MOOD_METHOD(is_set)},
- {DEFINE_MOOD_METHOD_WITH_CLEANUP(path_matches)},
- {DEFINE_MOOD_METHOD_WITH_CLEANUP(year)},
- {DEFINE_REGEX_MOOD_METHOD(artist_matches)},
- {DEFINE_REGEX_MOOD_METHOD(title_matches)},
- {DEFINE_REGEX_MOOD_METHOD(album_matches)},
- {DEFINE_REGEX_MOOD_METHOD(comment_matches)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(bitrate)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(frequency)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(channels)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(num_played)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(image_id)},
- {DEFINE_COMPARE_NUM_MOOD_METHOD(lyrics_id)},
- {.parser = NULL}
-};
projects / paraslash.git / blobdiff