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fix issue with metadata testing

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This commit is contained in:
Henry Schimke
2023-02-01 12:23:00 -06:00
parent d29fece8bf
commit fb60cfc5a3
12 changed files with 169 additions and 45 deletions
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11
src/datamatrix/decoder/datamatrix_decoder.rs
View File

@@ -50,12 +50,12 @@ impl Decoder {
* @throws ChecksumException if error correction fails
*/
pub fn decode(&self, bits: &BitMatrix) -> Result<DecoderRXingResult, Exceptions> {
let decoded = self.perform_decode(bits, false);
let decoded = self.perform_decode(bits, false, false);
if decoded.is_ok() {
return decoded;
}
self.perform_decode(&Self::flip_bitmatrix(bits)?, false)
self.perform_decode(&Self::flip_bitmatrix(bits)?, false, true)
}
fn flip_bitmatrix(bits: &BitMatrix) -> Result<BitMatrix, Exceptions> {
@@ -85,7 +85,7 @@ impl Decoder {
* @throws ChecksumException if error correction fails
*/
pub fn decode_bools(&self, image: &Vec<Vec<bool>>) -> Result<DecoderRXingResult, Exceptions> {
self.perform_decode(&BitMatrix::parse_bools(image), false)
self.perform_decode(&BitMatrix::parse_bools(image), false, false)
}
/**
@@ -101,6 +101,7 @@ impl Decoder {
&self,
bits: &BitMatrix,
fix259: bool,
is_flipped: bool,
) -> Result<DecoderRXingResult, Exceptions> {
// Construct a parser and read version, error-correction level
let mut parser = BitMatrixParser::new(bits)?;
@@ -129,7 +130,7 @@ impl Decoder {
let numDataCodewords = dataBlock.getNumDataCodewords() as usize;
let errors_corrected = self.correctErrors(&mut codewordBytes, numDataCodewords as u32);
if errors_corrected.is_err() && !fix259 {
return self.perform_decode(bits, true);
return self.perform_decode(bits, true, is_flipped);
} else if errors_corrected.is_err() {
return Err(errors_corrected.err().unwrap());
}
@@ -141,7 +142,7 @@ impl Decoder {
}
// Decode the contents of that stream of bytes
decoded_bit_stream_parser::decode(&resultBytes)
decoded_bit_stream_parser::decode(&resultBytes, is_flipped)
}
/**

55
src/datamatrix/decoder/decoded_bit_stream_parser.rs
View File

@@ -110,7 +110,7 @@ const INSERT_STRING_CONST: &str = "\u{001E}\u{0004}";
const VALUE_236: &str = "[)>\u{001E}05\u{001D}";
const VALUE_237: &str = "[)>\u{001E}06\u{001D}";
pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
pub fn decode(bytes: &[u8], is_flipped: bool) -> Result<DecoderRXingResult, Exceptions> {
let mut bits = BitSource::new(bytes.to_vec());
let mut result = ECIStringBuilder::with_capacity(100);
let mut resultTrailer = String::new();
@@ -120,6 +120,8 @@ pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
let mut fnc1Positions = Vec::new();
let symbologyModifier;
let mut isECIencoded = false;
let mut known_eci = true;
let mut is_gs1 = false;
loop {
match mode {
Mode::ASCII_ENCODE => {
@@ -128,6 +130,7 @@ pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
&mut result,
&mut resultTrailer,
&mut fnc1Positions,
&mut is_gs1,
)?
}
Mode::C40_ENCODE => {
@@ -151,7 +154,7 @@ pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
mode = Mode::ASCII_ENCODE;
}
Mode::ECI_ENCODE => {
decodeECISegment(&mut bits, &mut result)?;
known_eci &= decodeECISegment(&mut bits, &mut result)?;
isECIencoded = true; // ECI detection only, atm continue decoding as ASCII
mode = Mode::ASCII_ENCODE;
}
@@ -165,7 +168,7 @@ pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
if !resultTrailer.is_empty() {
result.appendCharacters(&resultTrailer);
}
if isECIencoded {
if isECIencoded && known_eci {
// Examples for this numbers can be found in this documentation of a hardware barcode scanner:
// https://honeywellaidc.force.com/supportppr/s/article/List-of-barcode-symbology-AIM-Identifiers
if fnc1Positions.contains(&0) || fnc1Positions.contains(&4) {
@@ -183,13 +186,26 @@ pub fn decode(bytes: &[u8]) -> Result<DecoderRXingResult, Exceptions> {
symbologyModifier = 1;
}
Ok(DecoderRXingResult::with_symbology(
let mut result = DecoderRXingResult::with_symbology(
bytes.to_vec(),
result.build_result().to_string(),
byteSegments,
String::new(),
symbologyModifier,
))
);
if is_gs1 {
result.setContentType(String::from("GS1"));
}
if !known_eci {
result.setContentType(String::from("UnknownECI"));
}
if is_flipped {
result.setIsMirrored(is_flipped);
}
Ok(result)
// return new DecoderRXingResult(bytes,
// result.toString(),
@@ -206,6 +222,7 @@ fn decodeAsciiSegment(
result: &mut ECIStringBuilder,
resultTrailer: &mut String,
fnc1positions: &mut Vec<usize>,
is_gs1: &mut bool,
) -> Result<Mode, Exceptions> {
let mut upperShift = false;
let mut firstFNC1Position = 1;
@@ -247,16 +264,20 @@ fn decodeAsciiSegment(
}
232 => {
// FNC1
if bits.getByteOffset() == firstFNC1Position { /*result.symbology.modifier = '2';*/
if bits.getByteOffset() == firstFNC1Position {
/*result.symbology.modifier = '2';*/
*is_gs1 = true;
}
// GS1
else if bits.getByteOffset() == firstFNC1Position + 1 { /*result.symbology.modifier = '3';*/
else if bits.getByteOffset() == firstFNC1Position + 1 {
/*result.symbology.modifier = '3';*/
}
// AIM, note no AIM Application Indicator format defined, ISO 16022:2006 11.2
else {
fnc1positions.push(result.len());
result.append_char(29 as char);
} // translate as ASCII 29
fnc1positions.push(result.len());
}
233 =>
// Structured Append
@@ -727,20 +748,26 @@ fn decodeBase256Segment(
/**
* See ISO 16022:2007, 5.4.1
*/
fn decodeECISegment(bits: &mut BitSource, result: &mut ECIStringBuilder) -> Result<(), Exceptions> {
fn decodeECISegment(
bits: &mut BitSource,
result: &mut ECIStringBuilder,
) -> Result<bool, Exceptions> {
let firstByte = bits.readBits(8)?;
if firstByte <= 127 {
return result.appendECI(firstByte - 1);
result.appendECI(firstByte - 1)?;
return Ok(true);
}
let secondByte = bits.readBits(8)?;
if firstByte <= 191 {
return result.appendECI((firstByte - 128) * 254 + 127 + secondByte - 1);
result.appendECI((firstByte - 128) * 254 + 127 + secondByte - 1)?;
return Ok((firstByte - 128) * 254 + 127 + secondByte - 1 > 900);
}
let thirdByte = bits.readBits(8)?;
result.appendECI((firstByte - 192) * 64516 + 16383 + (secondByte - 1) * 254 + thirdByte - 1)
result.appendECI((firstByte - 192) * 64516 + 16383 + (secondByte - 1) * 254 + thirdByte - 1)?;
return Ok((firstByte - 192) * 64516 + 16383 + (secondByte - 1) * 254 + thirdByte - 1 > 900);
// if bits.available() < 8 {
// return Err(Exceptions::FormatException(None));
@@ -839,7 +866,7 @@ mod tests {
(b'C' + 1),
];
let decodedString = String::from(
decoded_bit_stream_parser::decode(&bytes)
decoded_bit_stream_parser::decode(&bytes, false)
.expect("decode")
.getText(),
);
@@ -851,7 +878,7 @@ mod tests {
// ASCII double digit (00 - 99) Numeric Value + 130
let bytes = [130, (1 + 130), (98 + 130), (99 + 130)];
let decodedString = String::from(
decoded_bit_stream_parser::decode(&bytes)
decoded_bit_stream_parser::decode(&bytes, false)
.expect("decode")
.getText(),
);