16e598b2c0
* Initial buffered file stream implementation * Fix logical errors * Fix more logical errors * Minimally working implementation * Adapt infrared unit tests for buffered streams * Increase read buffer size from 512 to 1K * Correct naming and formatting * More code improvements * Allow passing access and open modes for buffered streams * Implement tests for buffered streams * Better file and method names * Add comments and correct formatting * Use buffered streams in Infrared * Fix compilation error
677 lines
20 KiB
C
677 lines
20 KiB
C
/**
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* @file flipper_format.h
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* Flipper File Format helper library.
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*
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* Flipper File Format is a fairly simple format for storing data in a file.
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*
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* Flipper file structure:
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*
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* ~~~~~~~~~~~~~~~~~~~~~
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* # Commentary
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* Field name: field value
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* ~~~~~~~~~~~~~~~~~~~~~
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*
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* Lines starting with the # character are ignored (considered as comments). The separator between the name of the value and the value itself is the string ": ".
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*
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* Currently supported types:
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*
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* ~~~~~~~~~~~~~~~~~~~~~
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* String: text
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* Int32: 1 2 -3 4
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* Uint32: 1 2 3 4
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* Float: 1.0 1234.654
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* Hex: A4 B3 C2 D1 12 FF
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* ~~~~~~~~~~~~~~~~~~~~~
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*
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* End of line is LF when writing, but CR is supported when reading.
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*
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* The library is designed in such a way that comments and field values are completely ignored when searching for keys, that is, they do not consume memory.
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*
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* File example:
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*
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* ~~~~~~~~~~~~~~~~~~~~~
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* Filetype: Flipper Test File
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* Version: 1
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* # Just test file
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* String: String value
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* UINT: 1234
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* Hex: 00 01 FF A3
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* ~~~~~~~~~~~~~~~~~~~~~
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*
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* Writing:
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*
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* ~~~~~~~~~~~~~~~~~~~~~
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* FlipperFormat format = flipper_format_file_alloc(storage);
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*
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* do {
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* const uint32_t version = 1;
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* const char* string_value = "String value";
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* const uint32_t uint32_value = 1234;
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* const uint16_t array_size = 4;
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* const uint8_t* array[array_size] = {0x00, 0x01, 0xFF, 0xA3};
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*
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* if(!flipper_format_file_open_new(format, "/ext/flipper_format_test")) break;
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* if(!flipper_format_write_header_cstr(format, "Flipper Test File", version)) break;
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* if(!flipper_format_write_comment_cstr(format, "Just test file")) break;
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* if(!flipper_format_write_string_cstr(format, "String", string_value)) break;
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* if(!flipper_format_write_uint32(format, "UINT", &uint32_value, 1)) break;
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* if(!flipper_format_write_hex(format, "Hex Array", array, array_size)) break;
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*
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* // signal that the file was written successfully
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* } while(0);
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*
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* flipper_format_free(file);
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* ~~~~~~~~~~~~~~~~~~~~~
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*
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* Reading:
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*
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* ~~~~~~~~~~~~~~~~~~~~~
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* FlipperFormat file = flipper_format_file_alloc(storage);
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*
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* do {
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* uint32_t version = 1;
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* string_t file_type;
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* string_t string_value;
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* uint32_t uint32_value = 1;
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* uint16_t array_size = 4;
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* uint8_t* array[array_size] = {0};
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* string_init(file_type);
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* string_init(string_value);
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*
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* if(!flipper_format_file_open_existing(file, "/ext/flipper_format_test")) break;
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* if(!flipper_format_read_header(file, file_type, &version)) break;
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* if(!flipper_format_read_string(file, "String", string_value)) break;
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* if(!flipper_format_read_uint32(file, "UINT", &uint32_value, 1)) break;
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* if(!flipper_format_read_hex(file, "Hex Array", array, array_size)) break;
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*
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* // signal that the file was read successfully
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* } while(0);
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*
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* flipper_format_free(file);
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* ~~~~~~~~~~~~~~~~~~~~~
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*
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*/
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#pragma once
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#include <stdint.h>
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#include <mlib/m-string.h>
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#include <storage/storage.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct FlipperFormat FlipperFormat;
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/**
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* Allocate FlipperFormat as string.
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* @return FlipperFormat* pointer to a FlipperFormat instance
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*/
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FlipperFormat* flipper_format_string_alloc();
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/**
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* Allocate FlipperFormat as file.
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* @return FlipperFormat* pointer to a FlipperFormat instance
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*/
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FlipperFormat* flipper_format_file_alloc(Storage* storage);
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/**
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* Allocate FlipperFormat as file, buffered read-only mode.
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* @return FlipperFormat* pointer to a FlipperFormat instance
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*/
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FlipperFormat* flipper_format_buffered_file_alloc(Storage* storage);
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/**
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* Open existing file.
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* Use only if FlipperFormat allocated as a file.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param path File path
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* @return True on success
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*/
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bool flipper_format_file_open_existing(FlipperFormat* flipper_format, const char* path);
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/**
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* Open existing file, read-only with buffered read operations.
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* Use only if FlipperFormat allocated as a file.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param path File path
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* @return True on success
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*/
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bool flipper_format_buffered_file_open_existing(FlipperFormat* flipper_format, const char* path);
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/**
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* Open existing file for writing and add values to the end of file.
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* Use only if FlipperFormat allocated as a file.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param path File path
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* @return True on success
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*/
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bool flipper_format_file_open_append(FlipperFormat* flipper_format, const char* path);
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/**
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* Open file. Creates a new file, or deletes the contents of the file if it already exists.
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* Use only if FlipperFormat allocated as a file.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param path File path
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* @return True on success
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*/
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bool flipper_format_file_open_always(FlipperFormat* flipper_format, const char* path);
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/**
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* Open file. Creates a new file, fails if file already exists.
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* Use only if FlipperFormat allocated as a file.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param path File path
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* @return True on success
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*/
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bool flipper_format_file_open_new(FlipperFormat* flipper_format, const char* path);
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/**
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* Closes the file, use only if FlipperFormat allocated as a file.
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* @param flipper_format
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* @return true
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* @return false
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*/
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bool flipper_format_file_close(FlipperFormat* flipper_format);
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/**
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* Closes the file, use only if FlipperFormat allocated as a buffered file.
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* @param flipper_format
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* @return true
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* @return false
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*/
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bool flipper_format_buffered_file_close(FlipperFormat* flipper_format);
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/**
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* Free FlipperFormat.
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* @param flipper_format Pointer to a FlipperFormat instance
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*/
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void flipper_format_free(FlipperFormat* flipper_format);
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/**
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* Set FlipperFormat mode.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param strict_mode True obligates not to skip valid fields. False by default.
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*/
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void flipper_format_set_strict_mode(FlipperFormat* flipper_format, bool strict_mode);
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/**
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* Rewind the RW pointer.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @return True on success
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*/
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bool flipper_format_rewind(FlipperFormat* flipper_format);
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/**
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* Move the RW pointer at the end. Can be useful if you want to add some data after reading.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @return True on success
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*/
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bool flipper_format_seek_to_end(FlipperFormat* flipper_format);
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/**
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* Check if the key exists.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @return true key exists
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* @return false key is not exists
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*/
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bool flipper_format_key_exist(FlipperFormat* flipper_format, const char* key);
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/**
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* Read the header (file type and version).
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param filetype File type string
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* @param version Version Value
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* @return True on success
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*/
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bool flipper_format_read_header(
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FlipperFormat* flipper_format,
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string_t filetype,
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uint32_t* version);
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/**
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* Write the header (file type and version).
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param filetype File type string
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* @param version Version Value
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* @return True on success
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*/
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bool flipper_format_write_header(
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FlipperFormat* flipper_format,
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string_t filetype,
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const uint32_t version);
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/**
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* Write the header (file type and version). Plain C string version.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param filetype File type string
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* @param version Version Value
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* @return True on success
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*/
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bool flipper_format_write_header_cstr(
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FlipperFormat* flipper_format,
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const char* filetype,
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const uint32_t version);
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/**
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* Get the count of values by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key
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* @param count
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* @return bool
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*/
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bool flipper_format_get_value_count(
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FlipperFormat* flipper_format,
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const char* key,
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uint32_t* count);
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/**
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* Read a string by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_read_string(FlipperFormat* flipper_format, const char* key, string_t data);
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/**
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* Write key and string
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_write_string(FlipperFormat* flipper_format, const char* key, string_t data);
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/**
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* Write key and string. Plain C string version.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_write_string_cstr(
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FlipperFormat* flipper_format,
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const char* key,
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const char* data);
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/**
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* Read array of uint64 in hex format by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_hex_uint64(
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FlipperFormat* flipper_format,
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const char* key,
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uint64_t* data,
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const uint16_t data_size);
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/**
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* Write key and array of uint64 in hex format
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_hex_uint64(
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FlipperFormat* flipper_format,
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const char* key,
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const uint64_t* data,
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const uint16_t data_size);
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/**
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* Read array of uint32 by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_uint32(
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FlipperFormat* flipper_format,
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const char* key,
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uint32_t* data,
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const uint16_t data_size);
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/**
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* Write key and array of uint32
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_uint32(
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FlipperFormat* flipper_format,
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const char* key,
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const uint32_t* data,
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const uint16_t data_size);
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/**
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* Read array of int32 by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_int32(
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FlipperFormat* flipper_format,
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const char* key,
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int32_t* data,
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const uint16_t data_size);
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/**
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* Write key and array of int32
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_int32(
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FlipperFormat* flipper_format,
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const char* key,
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const int32_t* data,
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const uint16_t data_size);
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/**
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* Read array of bool by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_bool(
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FlipperFormat* flipper_format,
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const char* key,
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bool* data,
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const uint16_t data_size);
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/**
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* Write key and array of bool
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_bool(
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FlipperFormat* flipper_format,
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const char* key,
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const bool* data,
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const uint16_t data_size);
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/**
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* Read array of float by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_float(
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FlipperFormat* flipper_format,
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const char* key,
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float* data,
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const uint16_t data_size);
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/**
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* Write key and array of float
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_float(
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FlipperFormat* flipper_format,
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const char* key,
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const float* data,
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const uint16_t data_size);
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/**
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* Read array of hex-formatted bytes by key
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_read_hex(
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FlipperFormat* flipper_format,
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const char* key,
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uint8_t* data,
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const uint16_t data_size);
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/**
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* Write key and array of hex-formatted bytes
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @param data_size Values count
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* @return True on success
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*/
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bool flipper_format_write_hex(
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FlipperFormat* flipper_format,
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const char* key,
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const uint8_t* data,
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const uint16_t data_size);
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/**
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* Write comment
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param data Comment text
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* @return True on success
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*/
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bool flipper_format_write_comment(FlipperFormat* flipper_format, string_t data);
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/**
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* Write comment. Plain C string version.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param data Comment text
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* @return True on success
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*/
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bool flipper_format_write_comment_cstr(FlipperFormat* flipper_format, const char* data);
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/**
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* Removes the first matching key and its value. Sets the RW pointer to a position of deleted data.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @return True on success
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*/
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bool flipper_format_delete_key(FlipperFormat* flipper_format, const char* key);
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/**
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* Updates the value of the first matching key to a string value. Sets the RW pointer to a position at the end of inserted data.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_update_string(FlipperFormat* flipper_format, const char* key, string_t data);
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/**
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* Updates the value of the first matching key to a string value. Plain C version. Sets the RW pointer to a position at the end of inserted data.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_update_string_cstr(
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FlipperFormat* flipper_format,
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const char* key,
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const char* data);
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/**
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* Updates the value of the first matching key to a uint32 array value. Sets the RW pointer to a position at the end of inserted data.
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* @param flipper_format Pointer to a FlipperFormat instance
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* @param key Key
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* @param data Value
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* @return True on success
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*/
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bool flipper_format_update_uint32(
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FlipperFormat* flipper_format,
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const char* key,
|
|
const uint32_t* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a int32 array value. Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_update_int32(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const int32_t* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a bool array value. Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_update_bool(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const bool* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a float array value. Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_update_float(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const float* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to an array of hex-formatted bytes. Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_update_hex(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const uint8_t* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a string value, or adds the key and value if the key did not exist.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_string(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
string_t data);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a string value, or adds the key and value if the key did not exist.
|
|
* Plain C version.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_string_cstr(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const char* data);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a uint32 array value, or adds the key and value if the key did not exist.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_uint32(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const uint32_t* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a int32 array value, or adds the key and value if the key did not exist.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_int32(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const int32_t* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a bool array value, or adds the key and value if the key did not exist.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_bool(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const bool* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to a float array value, or adds the key and value if the key did not exist.
|
|
* Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_float(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const float* data,
|
|
const uint16_t data_size);
|
|
|
|
/**
|
|
* Updates the value of the first matching key to an array of hex-formatted bytes, or adds the key and value if the key did not exist.
|
|
*Sets the RW pointer to a position at the end of inserted data.
|
|
* @param flipper_format Pointer to a FlipperFormat instance
|
|
* @param key Key
|
|
* @param data Value
|
|
* @return True on success
|
|
*/
|
|
bool flipper_format_insert_or_update_hex(
|
|
FlipperFormat* flipper_format,
|
|
const char* key,
|
|
const uint8_t* data,
|
|
const uint16_t data_size);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|