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RetroArch/libretro-db/c_converter.c

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/* Copyright (C) 2010-2017 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (c_converter.c).
* ---------------------------------------------------------------------------------------
*
* Permission is hereby granted, free of charge,
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <lrc_hash.h>
#include <retro_assert.h>
#include <string/stdstring.h>
#include <streams/file_stream.h>
#include "libretrodb.h"
static void dat_converter_exit(int rc)
{
fflush(stdout);
exit(rc);
}
typedef enum
{
DAT_CONVERTER_STRING_MAP,
DAT_CONVERTER_LIST_MAP,
} dat_converter_map_enum;
typedef enum
{
DAT_CONVERTER_TOKEN_LIST,
DAT_CONVERTER_STRING_LIST,
DAT_CONVERTER_MAP_LIST,
DAT_CONVERTER_LIST_LIST,
} dat_converter_list_enum;
typedef struct
{
const char* label;
int line_no;
int column;
const char* fname;
} dat_converter_token_t;
typedef struct dat_converter_map_t dat_converter_map_t;
typedef struct dat_converter_list_t dat_converter_list_t;
typedef union dat_converter_list_item_t dat_converter_list_item_t;
typedef struct dat_converter_search_tree_t dat_converter_search_tree_t;
typedef struct dat_converter_bt_node_t dat_converter_bt_node_t;
struct dat_converter_map_t
{
const char* key;
uint32_t hash;
dat_converter_map_enum type;
union
{
const char* string;
dat_converter_list_t* list;
} value;
};
struct dat_converter_list_t
{
dat_converter_list_enum type;
dat_converter_list_item_t* values;
dat_converter_bt_node_t* bt_root;
int count;
int capacity;
};
union dat_converter_list_item_t
{
const char* string;
dat_converter_map_t map;
dat_converter_token_t token;
dat_converter_list_t* list;
};
struct dat_converter_bt_node_t
{
int index;
uint32_t hash;
dat_converter_bt_node_t* right;
dat_converter_bt_node_t* left;
};
static dat_converter_list_t* dat_converter_list_create(
dat_converter_list_enum type)
{
dat_converter_list_t* list = malloc(sizeof(*list));
list->type = type;
list->count = 0;
list->capacity = (1 << 2);
list->bt_root = NULL;
list->values = (dat_converter_list_item_t*)malloc(
sizeof(*list->values) * list->capacity);
return list;
}
static void dat_converter_bt_node_free(dat_converter_bt_node_t* node)
{
if (!node)
return;
dat_converter_bt_node_free(node->left);
dat_converter_bt_node_free(node->right);
free(node);
}
static void dat_converter_list_free(dat_converter_list_t* list)
{
if (!list)
return;
switch (list->type)
{
case DAT_CONVERTER_LIST_LIST:
while (list->count--)
dat_converter_list_free(list->values[list->count].list);
break;
case DAT_CONVERTER_MAP_LIST:
while (list->count--)
{
if (list->values[list->count].map.type == DAT_CONVERTER_LIST_MAP)
dat_converter_list_free(list->values[list->count].map.value.list);
}
dat_converter_bt_node_free(list->bt_root);
break;
default:
break;
}
free(list->values);
free(list);
}
static void dat_converter_list_append(dat_converter_list_t* dst, void* item);
static dat_converter_bt_node_t* dat_converter_bt_node_insert(
dat_converter_list_t* list,
dat_converter_bt_node_t** node,
dat_converter_map_t* map)
{
retro_assert(map->key);
retro_assert(list->type == DAT_CONVERTER_MAP_LIST);
if (!*node)
{
*node = calloc(1, sizeof(dat_converter_bt_node_t));
return *node;
}
int diff = (*node)->hash - map->hash;
if (!diff)
diff = strcmp(list->values[(*node)->index].map.key, map->key);
if (diff < 0)
return dat_converter_bt_node_insert(list, &(*node)->left, map);
else if (diff > 0)
return dat_converter_bt_node_insert(list, &(*node)->right, map);
/* found match */
if (list->values[(*node)->index].map.type == DAT_CONVERTER_LIST_MAP)
{
if (map->type == DAT_CONVERTER_LIST_MAP)
{
int i;
retro_assert(list->values[(*node)->index].map.value.list->type
== map->value.list->type);
for (i = 0; i < map->value.list->count; i++)
dat_converter_list_append(
list->values[(*node)->index].map.value.list,
&map->value.list->values[i]);
/* set count to 0 to prevent freeing the child nodes */
map->value.list->count = 0;
dat_converter_list_free(map->value.list);
}
}
else
list->values[(*node)->index].map = *map;
return NULL;
}
static void dat_converter_list_append(dat_converter_list_t* dst, void* item)
{
if (dst->count == dst->capacity)
{
dst->capacity <<= 1;
dst->values = realloc(dst->values, sizeof(*dst->values) * dst->capacity);
}
switch (dst->type)
{
case DAT_CONVERTER_TOKEN_LIST:
{
dat_converter_token_t* token = (dat_converter_token_t*) item;
dst->values[dst->count].token = *token;
break;
}
case DAT_CONVERTER_STRING_LIST:
{
char* str = (char*) item;
dst->values[dst->count].string = str;
break;
}
case DAT_CONVERTER_MAP_LIST:
{
dat_converter_map_t* map = (dat_converter_map_t*) item;
if (!map->key)
dst->values[dst->count].map = *map;
else
{
map->hash = djb2_calculate(map->key);
dat_converter_bt_node_t* new_node =
dat_converter_bt_node_insert(dst, &dst->bt_root, map);
if (!new_node)
return;
dst->values[dst->count].map = *map;
new_node->index = dst->count;
new_node->hash = map->hash;
}
break;
}
case DAT_CONVERTER_LIST_LIST:
{
dat_converter_list_t* list = (dat_converter_list_t*) item;
dst->values[dst->count].list = list;
break;
}
default:
return;
}
dst->count++;
}
static dat_converter_list_t* dat_converter_lexer(
char* src, const char* dat_path)
{
dat_converter_list_t* token_list =
dat_converter_list_create(DAT_CONVERTER_TOKEN_LIST);
dat_converter_token_t token = {NULL, 1, 1, dat_path};
bool quoted_token = false;
while (*src)
{
if ((!quoted_token && (*src == '\t' || *src == ' ')) || (*src == '\r'))
{
*src = '\0';
src++;
token.column++;
token.label = NULL;
quoted_token = false;
continue;
}
if (*src == '\n')
{
*src = '\0';
src++;
token.column = 1;
token.line_no++;
token.label = NULL;
quoted_token = false;
continue;
}
if (*src == '\"')
{
*src = '\0';
src++;
token.column++;
quoted_token = !quoted_token;
token.label = NULL;
if (quoted_token)
{
token.label = src;
dat_converter_list_append(token_list, &token);
}
continue;
}
if (!token.label)
{
token.label = src;
dat_converter_list_append(token_list, &token);
}
src++;
token.column++;
}
token.label = NULL;
dat_converter_list_append(token_list, &token);
return token_list;
}
static dat_converter_list_t* dat_parser_table(
dat_converter_list_item_t** start_token)
{
dat_converter_list_t* parsed_table =
dat_converter_list_create(DAT_CONVERTER_MAP_LIST);
dat_converter_map_t map = {0};
dat_converter_list_item_t* current = *start_token;
while (current->token.label)
{
if (!map.key)
{
if (string_is_equal(current->token.label, ")"))
{
current++;
*start_token = current;
return parsed_table;
}
else if (string_is_equal(current->token.label, "("))
{
printf("%s:%d:%d: fatal error: Unexpected '(' instead of key\n",
current->token.fname,
current->token.line_no,
current->token.column);
dat_converter_exit(1);
}
else
{
map.key = current->token.label;
current++;
}
}
else
{
if (string_is_equal(current->token.label, "("))
{
current++;
map.type = DAT_CONVERTER_LIST_MAP;
map.value.list = dat_parser_table(&current);
dat_converter_list_append(parsed_table, &map);
}
else if (string_is_equal(current->token.label, ")"))
{
printf("%s:%d:%d: fatal error: Unexpected ')' instead of value\n",
current->token.fname,
current->token.line_no,
current->token.column);
dat_converter_exit(1);
}
else
{
map.type = DAT_CONVERTER_STRING_MAP;
map.value.string = current->token.label;
dat_converter_list_append(parsed_table, &map);
current++;
}
map.key = NULL;
}
}
printf("%s:%d:%d: fatal error: Missing ')' for '('\n",
(*start_token)->token.fname,
(*start_token)->token.line_no,
(*start_token)->token.column);
dat_converter_exit(1);
/* unreached */
dat_converter_list_free(parsed_table);
return NULL;
}
typedef struct dat_converter_match_key_t dat_converter_match_key_t;
struct dat_converter_match_key_t
{
char* value;
uint32_t hash;
dat_converter_match_key_t* next;
};
static dat_converter_match_key_t* dat_converter_match_key_create(
const char* format)
{
dat_converter_match_key_t* match_key;
dat_converter_match_key_t* current_mk;
char* dot;
match_key = malloc(sizeof(*match_key));
match_key->value = strdup(format);
match_key->next = NULL;
current_mk = match_key;
dot = match_key->value;
while (*dot++)
{
if (*dot == '.')
{
*dot++ = '\0';
current_mk->hash = djb2_calculate(current_mk->value);
current_mk->next = malloc(sizeof(*match_key));
current_mk = current_mk->next;
current_mk->value = dot;
current_mk->next = NULL;
}
}
current_mk->hash = djb2_calculate(current_mk->value);
return match_key;
}
static void dat_converter_match_key_free(dat_converter_match_key_t* match_key)
{
if (!match_key)
return;
free(match_key->value);
while (match_key)
{
dat_converter_match_key_t* next = match_key->next;
free(match_key);
match_key = next;
}
}
static const char* dat_converter_get_match(
dat_converter_list_t* list,
dat_converter_match_key_t* match_key)
{
int i;
retro_assert(match_key);
if (list->type != DAT_CONVERTER_MAP_LIST)
return NULL;
for (i = 0; i < list->count; i++)
{
if (list->values[i].map.hash == match_key->hash)
{
retro_assert(string_is_equal(list->values[i].map.key, match_key->value));
if (match_key->next)
return dat_converter_get_match(
list->values[i].map.value.list, match_key->next);
if ((list->values[i].map.type == DAT_CONVERTER_STRING_MAP))
return list->values[i].map.value.string;
return NULL;
}
}
return NULL;
}
static dat_converter_list_t* dat_converter_parser(
dat_converter_list_t* target,
dat_converter_list_t* lexer_list,
dat_converter_match_key_t* match_key)
{
dat_converter_map_t map;
dat_converter_list_item_t* current = lexer_list->values;
bool skip = true;
bool warning_displayed = false;
map.key = NULL;
map.type = DAT_CONVERTER_LIST_MAP;
if (!target)
{
dat_converter_map_t map;
target = dat_converter_list_create(DAT_CONVERTER_MAP_LIST);
map.key = NULL;
map.type = DAT_CONVERTER_LIST_MAP;
map.value.list = NULL;
dat_converter_list_append(target, &map);
}
while (current->token.label)
{
if (!map.key)
{
if (string_is_equal(current->token.label, "game"))
skip = false;
map.key = current->token.label;
current++;
}
else
{
if (string_is_equal(current->token.label, "("))
{
current++;
map.value.list = dat_parser_table(&current);
if (!skip)
{
if (match_key)
{
map.key = dat_converter_get_match(map.value.list, match_key);
// If the key is not found, report, and mark it to be skipped.
if (!map.key)
{
if (warning_displayed == false)
{
printf(" - Missing match key '");
while (match_key->next)
{
printf("%s.", match_key->value);
match_key = match_key->next;
}
printf("%s' on line %d\n", match_key->value, current->token.line_no);
warning_displayed = true;
}
skip = true;
}
}
else
map.key = NULL;
// If we are still not to skip the entry, append it to the list.
if (!skip) {
dat_converter_list_append(target, &map);
skip = true;
}
}
else
dat_converter_list_free(map.value.list);
map.key = NULL;
}
else
{
printf("%s:%d:%d: fatal error: Expected '(' found '%s'\n",
current->token.fname,
current->token.line_no,
current->token.column,
current->token.label);
dat_converter_exit(1);
}
}
}
return target;
}
typedef enum
{
DAT_CONVERTER_RDB_TYPE_STRING,
DAT_CONVERTER_RDB_TYPE_UINT,
DAT_CONVERTER_RDB_TYPE_BINARY,
DAT_CONVERTER_RDB_TYPE_HEX
} dat_converter_rdb_format_enum;
typedef struct
{
const char* dat_key;
const char* rdb_key;
dat_converter_rdb_format_enum format;
} dat_converter_rdb_mappings_t;
dat_converter_rdb_mappings_t rdb_mappings[] =
{
{"name", "name", DAT_CONVERTER_RDB_TYPE_STRING},
{"description", "description", DAT_CONVERTER_RDB_TYPE_STRING},
{"genre", "genre", DAT_CONVERTER_RDB_TYPE_STRING},
{"achievements", "achievements", DAT_CONVERTER_RDB_TYPE_UINT},
{"category", "category", DAT_CONVERTER_RDB_TYPE_STRING},
{"language", "language", DAT_CONVERTER_RDB_TYPE_STRING},
{"region", "region", DAT_CONVERTER_RDB_TYPE_STRING},
{"console_exclusive", "console_exclusive", DAT_CONVERTER_RDB_TYPE_UINT},
{"platform_exclusive", "platform_exclusive", DAT_CONVERTER_RDB_TYPE_UINT},
{"score", "score", DAT_CONVERTER_RDB_TYPE_STRING},
{"media", "media", DAT_CONVERTER_RDB_TYPE_STRING},
{"controls", "controls", DAT_CONVERTER_RDB_TYPE_STRING},
{"artstyle", "artstyle", DAT_CONVERTER_RDB_TYPE_STRING},
{"gameplay", "gameplay", DAT_CONVERTER_RDB_TYPE_STRING},
{"narrative", "narrative", DAT_CONVERTER_RDB_TYPE_STRING},
{"pacing", "pacing", DAT_CONVERTER_RDB_TYPE_STRING},
{"perspective", "perspective", DAT_CONVERTER_RDB_TYPE_STRING},
{"setting", "setting", DAT_CONVERTER_RDB_TYPE_STRING},
{"visual", "visual", DAT_CONVERTER_RDB_TYPE_STRING},
{"vehicular", "vehicular", DAT_CONVERTER_RDB_TYPE_STRING},
{"rom.name", "rom_name", DAT_CONVERTER_RDB_TYPE_STRING},
{"rom.size", "size", DAT_CONVERTER_RDB_TYPE_UINT},
{"users", "users", DAT_CONVERTER_RDB_TYPE_UINT},
{"releasemonth", "releasemonth", DAT_CONVERTER_RDB_TYPE_UINT},
{"releaseyear", "releaseyear", DAT_CONVERTER_RDB_TYPE_UINT},
{"rumble", "rumble", DAT_CONVERTER_RDB_TYPE_UINT},
{"analog", "analog", DAT_CONVERTER_RDB_TYPE_UINT},
{"famitsu_rating", "famitsu_rating", DAT_CONVERTER_RDB_TYPE_UINT},
{"edge_rating", "edge_rating", DAT_CONVERTER_RDB_TYPE_UINT},
{"edge_issue", "edge_issue", DAT_CONVERTER_RDB_TYPE_UINT},
{"edge_review", "edge_review", DAT_CONVERTER_RDB_TYPE_STRING},
{"enhancement_hw", "enhancement_hw", DAT_CONVERTER_RDB_TYPE_STRING},
{"barcode", "barcode", DAT_CONVERTER_RDB_TYPE_STRING},
{"esrb_rating", "esrb_rating", DAT_CONVERTER_RDB_TYPE_STRING},
{"elspa_rating", "elspa_rating", DAT_CONVERTER_RDB_TYPE_STRING},
{"pegi_rating", "pegi_rating", DAT_CONVERTER_RDB_TYPE_STRING},
{"cero_rating", "cero_rating", DAT_CONVERTER_RDB_TYPE_STRING},
{"franchise", "franchise", DAT_CONVERTER_RDB_TYPE_STRING},
{"developer", "developer", DAT_CONVERTER_RDB_TYPE_STRING},
{"publisher", "publisher", DAT_CONVERTER_RDB_TYPE_STRING},
{"origin", "origin", DAT_CONVERTER_RDB_TYPE_STRING},
{"coop", "coop", DAT_CONVERTER_RDB_TYPE_UINT},
{"tgdb_rating", "tgdb_rating", DAT_CONVERTER_RDB_TYPE_UINT},
{"rom.crc", "crc", DAT_CONVERTER_RDB_TYPE_HEX},
{"rom.md5", "md5", DAT_CONVERTER_RDB_TYPE_HEX},
{"rom.sha1", "sha1", DAT_CONVERTER_RDB_TYPE_HEX},
{"serial", "serial", DAT_CONVERTER_RDB_TYPE_BINARY},
{"rom.serial", "serial", DAT_CONVERTER_RDB_TYPE_BINARY}
};
dat_converter_match_key_t* rdb_mappings_mk[(sizeof(rdb_mappings)
/ sizeof(*rdb_mappings))] = {0};
static void dat_converter_value_provider_init(void)
{
int i;
for (i = 0; i < (sizeof(rdb_mappings) / sizeof(*rdb_mappings)); i++)
rdb_mappings_mk[i] = dat_converter_match_key_create(rdb_mappings[i].dat_key);
}
static void dat_converter_value_provider_free(void)
{
int i;
for (i = 0; i < (sizeof(rdb_mappings) / sizeof(*rdb_mappings)); i++)
{
dat_converter_match_key_free(rdb_mappings_mk[i]);
rdb_mappings_mk[i] = NULL;
}
}
static int dat_converter_value_provider(
dat_converter_list_item_t** current_item, struct rmsgpack_dom_value* out)
{
int i;
struct rmsgpack_dom_pair* current = NULL;
out->type = RDT_MAP;
out->val.map.len = 0;
out->val.map.items = calloc((sizeof(rdb_mappings) / sizeof(*rdb_mappings)),
sizeof(struct rmsgpack_dom_pair));
(*current_item)--;
retro_assert((*current_item)->map.type == DAT_CONVERTER_LIST_MAP);
dat_converter_list_t* list = (*current_item)->map.value.list;
if (!list)
return 1;
retro_assert(list->type == DAT_CONVERTER_MAP_LIST);
current = out->val.map.items;
for (i = 0; i < (sizeof(rdb_mappings) / sizeof(*rdb_mappings)); i++)
{
const char* value = dat_converter_get_match(list, rdb_mappings_mk[i]);
if (!value)
continue;
current->key.type = RDT_STRING;
current->key.val.string.len = strlen(rdb_mappings[i].rdb_key);
current->key.val.string.buff = strdup(rdb_mappings[i].rdb_key);
switch (rdb_mappings[i].format)
{
case DAT_CONVERTER_RDB_TYPE_STRING:
current->value.type = RDT_STRING;
current->value.val.string.len = strlen(value);
current->value.val.string.buff = strdup(value);
break;
case DAT_CONVERTER_RDB_TYPE_UINT:
current->value.type = RDT_UINT;
if (value[strlen(value) - 1] == '\?')
{
free(current->key.val.string.buff);
continue;
}
current->value.val.uint_ = (uint64_t)atoll(value);
break;
case DAT_CONVERTER_RDB_TYPE_BINARY:
current->value.type = RDT_BINARY;
current->value.val.binary.len = strlen(value);
current->value.val.binary.buff = strdup(value);
break;
case DAT_CONVERTER_RDB_TYPE_HEX:
current->value.type = RDT_BINARY;
current->value.val.binary.len = strlen(value) / 2;
current->value.val.binary.buff =
malloc(current->value.val.binary.len);
{
const char* hex_char = value;
char* out_buff = current->value.val.binary.buff;
while (*hex_char && *(hex_char + 1))
{
char val = 0;
if (*hex_char >= 'A' && *hex_char <= 'F')
val = *hex_char + 0xA - 'A';
else if (*hex_char >= 'a' && *hex_char <= 'f')
val = *hex_char + 0xA - 'a';
else if (*hex_char >= '0' && *hex_char <= '9')
val = *hex_char - '0';
else
val = 0;
val <<= 4;
hex_char++;
if (*hex_char >= 'A' && *hex_char <= 'F')
val |= *hex_char + 0xA - 'A';
else if (*hex_char >= 'a' && *hex_char <= 'f')
val |= *hex_char + 0xA - 'a';
else if (*hex_char >= '0' && *hex_char <= '9')
val |= *hex_char - '0';
*out_buff++ = val;
hex_char++;
}
}
break;
default:
retro_assert(0);
break;
}
current++;
}
out->val.map.len = current - out->val.map.items;
return 0;
}
int main(int argc, char** argv)
{
const char* rdb_path;
dat_converter_match_key_t* match_key = NULL;
RFILE* rdb_file;
if (argc < 2)
{
printf("usage:\n%s <db file> [args ...]\n", *argv);
dat_converter_exit(1);
}
argc--;
argv++;
rdb_path = *argv;
argc--;
argv++;
if (argc > 1 &&** argv)
{
match_key = dat_converter_match_key_create(*argv);
argc--;
argv++;
}
int dat_count = argc;
char** dat_buffers = (char**)
malloc(dat_count * sizeof(*dat_buffers));
char** dat_buffer = dat_buffers;
dat_converter_list_t* dat_parser_list = NULL;
while (argc)
{
size_t dat_file_size;
dat_converter_list_t* dat_lexer_list = NULL;
FILE* dat_file = fopen(*argv, "r");
if (!dat_file)
{
printf(" could not open dat file '%s': %s\n",
*argv, strerror(errno));
dat_converter_exit(1);
}
fseek(dat_file, 0, SEEK_END);
dat_file_size = ftell(dat_file);
fseek(dat_file, 0, SEEK_SET);
*dat_buffer = (char*)malloc(dat_file_size + 1);
fread(*dat_buffer, 1, dat_file_size, dat_file);
fclose(dat_file);
(*dat_buffer)[dat_file_size] = '\0';
printf(" %s\n", *argv);
dat_lexer_list = dat_converter_lexer(*dat_buffer, *argv);
dat_parser_list = dat_converter_parser(
dat_parser_list, dat_lexer_list, match_key);
dat_converter_list_free(dat_lexer_list);
argc--;
argv++;
dat_buffer++;
}
rdb_file = filestream_open(rdb_path,
RETRO_VFS_FILE_ACCESS_WRITE,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!rdb_file)
{
printf(
"Could not open destination file '%s': %s\n",
rdb_path,
strerror(errno)
);
dat_converter_exit(1);
}
dat_converter_list_item_t* current_item =
&dat_parser_list->values[dat_parser_list->count];
dat_converter_value_provider_init();
libretrodb_create(rdb_file,
(libretrodb_value_provider)&dat_converter_value_provider,
&current_item);
dat_converter_value_provider_free();
filestream_close(rdb_file);
dat_converter_list_free(dat_parser_list);
while (dat_count--)
free(dat_buffers[dat_count]);
free(dat_buffers);
dat_converter_match_key_free(match_key);
return 0;
}
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