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[db] Use custom LIKE operator adapted from sqlite's icu.c (closes #1390)

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Improves the search, e.g.:
- 'é' LIKE 'e'
- 'æ' LIKE 'Æ'
- 'Ö' LIKE 'o'
This commit is contained in:
ejurgensen
2022-02-09 23:00:39 +01:00
parent edd22b6874
commit 616be4d8cb
3 changed files with 464 additions and 23 deletions
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14
src/db.c
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@@ -1015,13 +1015,15 @@ sort_tag_create(char **sort_tag, const char *src_tag)
return;
}
// Set input pointer past article if present
// Set input pointer past article if present and disregard certain special chars
if ((strncasecmp(src_tag, "a ", 2) == 0) && (len > 2))
i_ptr = (uint8_t *)(src_tag + 2);
else if ((strncasecmp(src_tag, "an ", 3) == 0) && (len > 3))
i_ptr = (uint8_t *)(src_tag + 3);
else if ((strncasecmp(src_tag, "the ", 4) == 0) && (len > 4))
i_ptr = (uint8_t *)(src_tag + 4);
else if (strchr("[('\"", src_tag[0]) && (len > 1))
i_ptr = (uint8_t *)(src_tag + 1);
else
i_ptr = (uint8_t *)src_tag;
@@ -6953,18 +6955,12 @@ db_open(void)
return -1;
}
errmsg = NULL;
ret = sqlite3_load_extension(hdl, PKGLIBDIR "/" PACKAGE_NAME "-sqlext.so", NULL, &errmsg);
if (ret != SQLITE_OK)
{
if (errmsg)
{
DPRINTF(E_LOG, L_DB, "Could not load SQLite extension: %s\n", errmsg);
sqlite3_free(errmsg);
}
else
DPRINTF(E_LOG, L_DB, "Could not load SQLite extension: %s\n", sqlite3_errmsg(hdl));
DPRINTF(E_LOG, L_DB, "Could not load SQLite extension: %s\n", errmsg);
sqlite3_free(errmsg);
sqlite3_close(hdl);
return -1;
}