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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
2 changed files with 64 additions and 25 deletions
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63
lib/flipper_format/flipper_format_stream.c
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@@ -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;
@@ -118,55 +122,64 @@ 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)) {
error = true;
break;
}
const uint8_t data = buffer[i];
result = true;
*last = true;
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 {
error = true;
state = ReadValue;
furi_string_push_back(value, data);
}
} else if(data == ' ') {
if(furi_string_size(value) > 0) {
} 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;
break;
} else {
result = true;
*last = true;
}
result = true;
*last = false;
break;
} else {
furi_string_push_back(value, data);
}
} 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;
}
}