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mc-text-search-str-encode-private.h
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/*
* Copyright 2024-present MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MONGOCRYPT_TEXT_SEARCH_STR_ENCODE_PRIVATE_H
#define MONGOCRYPT_TEXT_SEARCH_STR_ENCODE_PRIVATE_H
#include "mc-fle2-encryption-placeholder-private.h"
#include "mc-str-encode-string-sets-private.h"
#include "mongocrypt-status-private.h"
#include "mongocrypt.h"
// Result of a StrEncode. Contains the computed prefix, suffix, and substring trees, or NULL if empty, as well as the
// exact string.
typedef struct {
// Base string which the substring sets point to.
mc_utf8_string_with_bad_char_t *base_string;
// Set of encoded suffixes.
mc_affix_set_t *suffix_set;
// Set of encoded prefixes.
mc_affix_set_t *prefix_set;
// Set of encoded substrings.
mc_substring_set_t *substring_set;
// Encoded exact string.
_mongocrypt_buffer_t exact;
// Total number of tags over all the sets and the exact string.
uint32_t msize;
} mc_str_encode_sets_t;
// Run StrEncode with the given spec.
mc_str_encode_sets_t *mc_text_search_str_encode(const mc_FLE2TextSearchInsertSpec_t *spec, mongocrypt_status_t *status);
void mc_str_encode_sets_destroy(mc_str_encode_sets_t *sets);
// Applies case/diacritic folding to the string value in spec (if applicable), and returns
// the resulting string as a BSON string element in *out. Returns false and an error if the string
// is not valid UTF-8 or is unsuitable per the query parameters in the spec.
bool mc_text_search_str_query(const mc_FLE2TextSearchInsertSpec_t *spec,
_mongocrypt_buffer_t *out,
mongocrypt_status_t *status);
#endif /* MONGOCRYPT_TEXT_SEARCH_STR_ENCODE_PRIVATE_H */

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