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[FL-2847] FFF trailing space fix (#1811)

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* Improve whitespace handlilng in FFF
* Add tests for odd fff user input
* Adjust formatting

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Georgii Surkov 2022-10-06 17:18:20 +03:00 committed by GitHub
parent 9bf11d9fd2
commit 61189c3c82
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 64 additions and 25 deletions
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26
applications/debug/unit_tests/flipper_format/flipper_format_test.c
View file

@ -57,6 +57,23 @@ static const char* test_data_win = "Filetype: Flipper File test\r\n"
"Hex data: DE AD BE";
#define READ_TEST_FLP "ff_flp.test"
#define READ_TEST_ODD "ff_oddities.test"
static const char* test_data_odd = "Filetype: Flipper File test\n"
// Tabs before newline
"Version: 666\t\t\n"
"# This is comment\n"
// Windows newline in a UNIX file
"String data: String\r\n"
// Trailing whitespace
"Int32 data: 1234 -6345 7813 0 \n"
// Extra whitespace
"Uint32 data: 1234 0 5678 9098 7654321 \n"
// Mixed whitespace
"Float data: 1.5\t \t1000.0\n"
// Leading tabs after key
"Bool data:\t\ttrue false\n"
// Mixed trailing whitespace
"Hex data: DE AD BE\t ";
// data created by user on linux machine
static const char* test_file_linux = TEST_DIR READ_TEST_NIX;
@ -64,6 +81,8 @@ static const char* test_file_linux = TEST_DIR READ_TEST_NIX;
static const char* test_file_windows = TEST_DIR READ_TEST_WIN;
// data created by flipper itself
static const char* test_file_flipper = TEST_DIR READ_TEST_FLP;
// data containing odd user input
static const char* test_file_oddities = TEST_DIR READ_TEST_ODD;
static bool storage_write_string(const char* path, const char* data) {
Storage* storage = furi_record_open(RECORD_STORAGE);
@ -503,6 +522,12 @@ MU_TEST(flipper_format_multikey_test) {
mu_assert(test_read_multikey(TEST_DIR "ff_multiline.test"), "Multikey read test error");
}
MU_TEST(flipper_format_oddities_test) {
mu_assert(
storage_write_string(test_file_oddities, test_data_odd), "Write test error [Oddities]");
mu_assert(test_read(test_file_linux), "Read test error [Oddities]");
}
MU_TEST_SUITE(flipper_format) {
tests_setup();
MU_RUN_TEST(flipper_format_write_test);
@ -516,6 +541,7 @@ MU_TEST_SUITE(flipper_format) {
MU_RUN_TEST(flipper_format_update_2_test);
MU_RUN_TEST(flipper_format_update_2_result_test);
MU_RUN_TEST(flipper_format_multikey_test);
MU_RUN_TEST(flipper_format_oddities_test);
tests_teardown();
}

63
lib/flipper_format/flipper_format_stream.c
View file

@ -4,6 +4,10 @@
#include "flipper_format_stream.h"
#include "flipper_format_stream_i.h"
static inline bool flipper_format_stream_is_space(char c) {
return c == ' ' || c == '\t' || c == flipper_format_eolr;
}
static bool flipper_format_stream_write(Stream* stream, const void* data, size_t data_size) {
size_t bytes_written = stream_write(stream, data, data_size);
return bytes_written == data_size;
@ -118,56 +122,65 @@ bool flipper_format_stream_seek_to_key(Stream* stream, const char* key, bool str
}
static bool flipper_format_stream_read_value(Stream* stream, FuriString* value, bool* last) {
furi_string_reset(value);
enum { LeadingSpace, ReadValue, TrailingSpace } state = LeadingSpace;
const size_t buffer_size = 32;
uint8_t buffer[buffer_size];
bool result = false;
bool error = false;
furi_string_reset(value);
while(true) {
size_t was_read = stream_read(stream, buffer, buffer_size);
if(was_read == 0) {
// check EOF
if(stream_eof(stream) && furi_string_size(value) > 0) {
if(state != LeadingSpace && stream_eof(stream)) {
result = true;
*last = true;
break;
} else {
error = true;
}
}
for(uint16_t i = 0; i < was_read; i++) {
uint8_t data = buffer[i];
if(data == flipper_format_eoln) {
if(furi_string_size(value) > 0) {
if(!stream_seek(stream, i - was_read, StreamOffsetFromCurrent)) {
const uint8_t data = buffer[i];
if(state == LeadingSpace) {
if(flipper_format_stream_is_space(data)) {
continue;
} else if(data == flipper_format_eoln) {
stream_seek(stream, i - was_read, StreamOffsetFromCurrent);
error = true;
break;
} else {
state = ReadValue;
furi_string_push_back(value, data);
}
} else if(state == ReadValue) {
if(flipper_format_stream_is_space(data)) {
state = TrailingSpace;
} else if(data == flipper_format_eoln) {
if(!stream_seek(stream, i - was_read, StreamOffsetFromCurrent)) {
error = true;
} else {
result = true;
*last = true;
break;
} else {
error = true;
}
} else if(data == ' ') {
if(furi_string_size(value) > 0) {
if(!stream_seek(stream, i - was_read, StreamOffsetFromCurrent)) {
error = true;
break;
}
result = true;
*last = false;
break;
}
} else if(data == flipper_format_eolr) {
// Ignore
} else {
furi_string_push_back(value, data);
}
} else if(state == TrailingSpace) {
if(flipper_format_stream_is_space(data)) {
continue;
} else if(!stream_seek(stream, i - was_read, StreamOffsetFromCurrent)) {
error = true;
} else {
*last = (data == flipper_format_eoln);
result = true;
}
break;
}
}
if(error || result) break;