Cleanup of many components of the code.

Many unwraps, expects, and panics removed or handled.

More rustification of the codebase.

Squashed commit of the following:

commit 80c6483cf8c819496a7b781f9e3a149d1f18d5fe
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 20:36:57 2023 -0600

    add other parsed result option

commit 412d92ae585e7bf194697f5282dbc045e448bace
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 19:06:34 2023 -0600

    fix some panics

commit 9108d3e931aadec00fc0bf346ebc52d24e5d8146
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:56:30 2023 -0600

    clippy --fix

commit 8cd89d314323f54f342f15fc73297b62d418ac79
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:55:45 2023 -0600

    some more cleanup in aztec

commit fb7f9242e273b85a4bb212f22a185a0dcbfafc36
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:19:54 2023 -0600

    cleanup root

commit 4fb7c0639830869149332b29be789e891eade3e7
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:50:15 2023 -0600

    format

commit 3ac271af657b25fbe5ee39cbdf8859e5aa38ea41
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:43:14 2023 -0600

    clippy --fix

commit 0c5b4c1477159db93a9da9645039f51cd1a7c574
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:04:31 2023 -0600

    qrcode cleanup complete

commit 70c1d107cc672e45d46567c650c46fece7e7da9c
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 13:28:25 2023 -0600

    clippy --fix

commit e13263d0f1f2a13dbb59b6e60d8b871a32babc92
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 13:27:44 2023 -0600

    qrcode detector cleanup

commit f7f2855099e469fe1091868c6099196705d0ae83
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:48:13 2023 -0600

    qrcode decoder

commit bdbaaba597b3479639c2ed3726465a69e3004471
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:13:18 2023 -0600

    clippy --fix

commit fd6dbcaeb1f45dc91ae98f0e7c58aad48d67df78
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:12:28 2023 -0600

    pdf417 cleanup complete

commit 7bbd47604c2639a5eb61bdb5533e71be3bce95a1
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 10:39:28 2023 -0600

    clippy --fix

commit 8f4962b7bb5f133524fe4d3d4948e5672a88c545
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 10:39:00 2023 -0600

    cleanup on pdf417 hie

commit 254c8243953776d3c8704dd81529aadd05d5a94e
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 02:51:21 2023 +0000

    partway through pdf417 hle

commit d4a5b00fde8c0282b0c6e4175a21c1e111b11533
Author: Henry <henry@azule.info>
Date:   Wed Feb 8 21:35:25 2023 +0000

    clippy --fix

commit 2bd4a8e218aa963a88997b50bc5a198f9a88205e
Author: Henry <henry@azule.info>
Date:   Wed Feb 8 21:31:55 2023 +0000

    pdf417 decode and detect cleanup

commit 05130ac54a72c2303045d64507bf6185aa74e531
Author: Henry Schimke <henry@azule.info>
Date:   Tue Feb 7 08:06:25 2023 -0600

    at decodeTextCompaction in decoded_bit_straem_parser

commit 924c023a7d2339dfffa6ef0c4a805fb192576796
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 18:22:02 2023 -0600

    clippy --fix

commit 5cfb81a885c22b4b5ec937a79be31d0815def211
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 18:20:22 2023 -0600

    oned cleanup

commit 0649b64854baf56a8e3314728d4f6cf4063db8b2
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 11:47:28 2023 -0600

    rss cleanup

commit 2d3127898fc11f7e65d590e983cda799b798b646
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 10:19:56 2023 -0600

    multi cleanup

commit 7e8b43a159083a2096123e6204d4d1d359c59981
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:41:59 2023 -0600

    cargo fmt

commit df8285e8da07b4bffd48ca6e596de3f010eb8d9e
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:41:29 2023 -0600

    maxicode cleanup

commit a51f923a14016eb416ca202b2194258808dde3e7
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:57 2023 -0600

    cargo fmt

commit 332d7eef4a25318611025a3fcb0b70c604d917be
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:48 2023 -0600

    cleanup datamatrix

commit eb2311c476a9c9993f271ab6cf9fd359aedca26f
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:26 2023 -0600

    cargo clippy --fix

commit 2abaa4c51d287f619d4c7a438f85ba2a30f159cf
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 19:13:02 2023 -0600

    finish cleanup in parsers

commit 716aa2fbf728716cff36657a5fd80e7bca5276b7
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 17:44:56 2023 -0600

    cleanup continues

commit 7d843788a49fa9cc82c4616d226c0f882e73612b
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 15:15:09 2023 -0600

    common cleanup

commit fd251866c68f22d450dd428c93d7a3620bf1be27
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 10:24:54 2023 -0600

    cleanup reedsolomon

commit 132e27ed1468f5c1ce998516ff5a00687217c3e6
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 09:52:04 2023 -0600

    make MathUtils more generic

commit d8352b7fff4cb4f9ecc8e8a969710d26ef410e8b
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 09:29:33 2023 -0600

    cleanup some string handling in ResultParser

    There may still be some edge cases where multi-byte characters break the parser
This commit is contained in:
Henry
2023-02-10 20:41:25 -06:00
parent 5222bb25b7
commit 28723be2eb
180 changed files with 3248 additions and 4117 deletions

View File

@@ -30,26 +30,8 @@ pub trait AbstractRSSReaderTrait: OneDReader {
const MIN_FINDER_PATTERN_RATIO: f32 = 9.5 / 12.0;
const MAX_FINDER_PATTERN_RATIO: f32 = 12.5 / 14.0;
// private final int[] decodeFinderCounters;
// private final int[] dataCharacterCounters;
// private final float[] oddRoundingErrors;
// private final float[] evenRoundingErrors;
// private final int[] oddCounts;
// private final int[] evenCounts;
// protected AbstractRSSReader() {
// decodeFinderCounters = new int[4];
// dataCharacterCounters = new int[8];
// oddRoundingErrors = new float[4];
// evenRoundingErrors = new float[4];
// oddCounts = new int[dataCharacterCounters.length / 2];
// evenCounts = new int[dataCharacterCounters.length / 2];
// }
fn parseFinderValue(counters: &[u32], finderPatterns: &[[u32; 4]]) -> Result<u32, Exceptions> {
for (value, pattern) in finderPatterns.iter().enumerate() {
// for value in 0..finderPatterns.len() {
// for (int value = 0; value < finderPatterns.length; value++) {
if one_d_reader::patternMatchVariance(counters, pattern, Self::MAX_INDIVIDUAL_VARIANCE)
< Self::MAX_AVG_VARIANCE
{
@@ -73,7 +55,6 @@ pub trait AbstractRSSReaderTrait: OneDReader {
let mut index = 0;
let mut biggestError = errors[0];
for (i, error) in errors.iter().enumerate().take(array.len()).skip(1) {
// for (int i = 1; i < array.length; i++) {
if *error > biggestError {
biggestError = *error;
index = i;
@@ -86,8 +67,6 @@ pub trait AbstractRSSReaderTrait: OneDReader {
let mut index = 0;
let mut biggestError = errors[0];
for (i, error) in errors.iter().enumerate().take(array.len()).skip(1) {
// for i in 1..array.len() {
// for (int i = 1; i < array.length; i++) {
if *error < biggestError {
biggestError = *error;
index = i;
@@ -102,16 +81,19 @@ pub trait AbstractRSSReaderTrait: OneDReader {
let ratio: f32 = (firstTwoSum as f32) / (sum as f32);
if ratio >= Self::MIN_FINDER_PATTERN_RATIO && ratio <= Self::MAX_FINDER_PATTERN_RATIO {
// passes ratio test in spec, but see if the counts are unreasonable
// let minCounter = counters.iter().min();
// let maxCounter = counters.iter().max();
let mut minCounter = u32::MAX;
let mut maxCounter = u32::MIN;
for counter in counters {
// for (int counter : counters) {
if *counter > maxCounter {
maxCounter = *counter;
}
if *counter < minCounter {
minCounter = *counter;
}
maxCounter = std::cmp::max(*counter, maxCounter);
minCounter = std::cmp::min(*counter, minCounter);
// if *counter > maxCounter {
// maxCounter = *counter;
// }
// if *counter < minCounter {
// minCounter = *counter;
// }
}
return maxCounter < 10 * minCounter;
}

View File

@@ -50,7 +50,12 @@ pub fn buildBitArrayFromString(data: &str) -> Result<BitArray, Exceptions> {
// for (int i = 0; i < dotsAndXs.length(); ++i) {
if i % 9 == 0 {
// spaces
if dotsAndXs.chars().nth(i).unwrap() != ' ' {
if dotsAndXs
.chars()
.nth(i)
.ok_or(Exceptions::ParseException(None))?
!= ' '
{
return Err(Exceptions::IllegalStateException(Some(
"space expected".to_owned(),
)));
@@ -58,7 +63,10 @@ pub fn buildBitArrayFromString(data: &str) -> Result<BitArray, Exceptions> {
continue;
}
let currentChar = dotsAndXs.chars().nth(i).unwrap();
let currentChar = dotsAndXs
.chars()
.nth(i)
.ok_or(Exceptions::ParseException(None))?;
if currentChar == 'X' || currentChar == 'x' {
binary.set(counter);
}
@@ -75,12 +83,17 @@ pub fn buildBitArrayFromStringWithoutSpaces(data: &str) -> Result<BitArray, Exce
.replace_all(&ONE.replace_all(data, "X"), ".")
.to_string();
let mut current = 0;
while current < dotsAndXs.chars().count() {
let dotsAndXs_length = dotsAndXs.chars().count();
while current < dotsAndXs_length {
sb.push(' ');
let mut i = 0;
while i < 8 && current < dotsAndXs.chars().count() {
// for (int i = 0; i < 8 && current < dotsAndXs.length(); ++i) {
sb.push(dotsAndXs.chars().nth(current).unwrap());
while i < 8 && current < dotsAndXs_length {
sb.push(
dotsAndXs
.chars()
.nth(current)
.ok_or(Exceptions::ParseException(None))?,
);
current += 1;
i += 1;

View File

@@ -33,19 +33,24 @@ use super::ExpandedPair;
* @author Eduardo Castillejo, University of Deusto (eduardo.castillejo@deusto.es)
*/
pub fn buildBitArray(pairs: &Vec<ExpandedPair>) -> BitArray {
pub fn buildBitArray(pairs: &Vec<ExpandedPair>) -> Option<BitArray> {
let mut charNumber = (pairs.len() * 2) - 1;
if pairs.last().unwrap().getRightChar().is_none() {
charNumber -= 1;
if let Some(pair) = pairs.last() {
if pair.getRightChar().is_none() {
charNumber -= 1;
}
}
// if pairs.last().unwrap().getRightChar().is_none() {
// charNumber -= 1;
// }
let size = 12 * charNumber;
let mut binary = BitArray::with_size(size);
let mut accPos = 0;
let firstPair = pairs.get(0).unwrap();
let Some(rp) = firstPair.getRightChar() else { panic!("first char must exist");};
let firstPair = pairs.get(0)?;
let rp = firstPair.getRightChar().as_ref()?;
let firstValue = rp.getValue();
let mut i = 11;
while i >= 0 {
@@ -60,8 +65,8 @@ pub fn buildBitArray(pairs: &Vec<ExpandedPair>) -> BitArray {
for i in 1..pairs.len() {
// for (int i = 1; i < pairs.size(); ++i) {
let currentPair = pairs.get(i).unwrap();
let Some(lv) = currentPair.getLeftChar() else { panic!("I'm not sure how we get here ");};
let currentPair = pairs.get(i)?;
let lv = currentPair.getLeftChar().as_ref()?;
let leftValue = lv.getValue();
let mut j = 11;
while j >= 0 {
@@ -88,7 +93,7 @@ pub fn buildBitArray(pairs: &Vec<ExpandedPair>) -> BitArray {
}
}
}
binary
Some(binary)
}
/**
@@ -139,6 +144,6 @@ mod BitArrayBuilderTest {
pairs.push(expandedPair);
}
super::buildBitArray(&pairs)
super::buildBitArray(&pairs).unwrap()
}
}

View File

@@ -36,7 +36,7 @@ pub struct AI01AndOtherAIs<'a>(&'a BitArray, GeneralAppIdDecoder<'a>);
impl AI01decoder for AI01AndOtherAIs<'_> {}
impl AbstractExpandedDecoder for AI01AndOtherAIs<'_> {
fn parseInformation(&mut self) -> Result<String, crate::Exceptions> {
let mut buff = String::new(); //new StringBuilder();
let mut buff = String::new();
buff.push_str("(01)");
let initialGtinPosition = buff.chars().count();
@@ -59,9 +59,7 @@ impl<'a> AI01AndOtherAIs<'_> {
AI01AndOtherAIs(information, GeneralAppIdDecoder::new(information))
}
const HEADER_SIZE: usize = 1 + 1 + 2; //first bit encodes the linkage flag,
//the second one is the encodation method, and the other two are for the variable length
// AI01AndOtherAIs(BitArray information) {
// super(information);
// }
//first bit encodes the linkage flag,
//the second one is the encodation method, and the other two are for the variable length
const HEADER_SIZE: usize = 1 + 1 + 2;
}

View File

@@ -65,10 +65,12 @@ pub trait AI01decoder: AbstractExpandedDecoder {
}
}
/// Append the checkdigit to the string buffer
///
/// Panics is buf is less than 13 characters in length
pub(super) fn appendCheckDigit(buf: &mut String, currentPos: usize) {
let mut checkDigit = 0;
for i in 0..13 {
// for (int i = 0; i < 13; i++) {
let digit = buf.chars().nth(i + currentPos).unwrap() as u32 - '0' as u32;
checkDigit += if (i & 0x01) == 0 { 3 * digit } else { digit };
}

View File

@@ -40,7 +40,6 @@ pub trait AI01weightDecoder: AI01decoder {
let mut currentDivisor = 100000;
for _i in 0..5 {
// for (int i = 0; i < 5; ++i) {
if weightNumeric / currentDivisor == 0 {
buf.push('0');
}

View File

@@ -161,7 +161,7 @@ pub fn parseFieldsInGeneralPurpose(rawInformation: &str) -> Result<String, Excep
return Err(Exceptions::NotFoundException(None));
}
let firstThreeDigits: String = rawInformation.chars().take(3).collect(); //rawInformation.substring(0, 3);
let firstThreeDigits: String = rawInformation.chars().take(3).collect();
let threeDigitDataLength = THREE_DIGIT_DATA_LENGTH.get(&firstThreeDigits);
if let Some(tddl) = threeDigitDataLength {
if tddl.variable {
@@ -230,7 +230,7 @@ fn processVariableAI(
variableFieldSize: usize,
rawInformation: &str,
) -> Result<String, Exceptions> {
let ai: String = rawInformation.chars().take(aiSize).collect(); //rawInformation.substring(0, aiSize);
let ai: String = rawInformation.chars().take(aiSize).collect();
let maxSize = rawInformation
.chars()
.count()

View File

@@ -132,7 +132,6 @@ impl<'a> GeneralAppIdDecoder<'_> {
) -> u32 {
let mut value = 0;
for i in 0..bits {
// for (int i = 0; i < bits; ++i) {
if information.get(pos + i as usize) {
value |= 1 << (bits - i - 1);
}
@@ -197,8 +196,8 @@ impl<'a> GeneralAppIdDecoder<'_> {
}
} //while (!isFinished);
if result.getDecodedInformation().is_some() {
Ok(result.getDecodedInformation().as_ref().unwrap().clone())
if let Some(r) = result.getDecodedInformation() {
Ok(r.clone())
} else {
Err(Exceptions::NotFoundException(None))
}
@@ -346,7 +345,8 @@ impl<'a> GeneralAppIdDecoder<'_> {
if (5..15).contains(&fiveBitValue) {
return Ok(DecodedChar::new(
pos + 5,
char::from_u32('0' as u32 + fiveBitValue - 5).unwrap(),
char::from_u32('0' as u32 + fiveBitValue - 5)
.ok_or(Exceptions::ParseException(None))?,
));
}
@@ -355,14 +355,14 @@ impl<'a> GeneralAppIdDecoder<'_> {
if (64..90).contains(&sevenBitValue) {
return Ok(DecodedChar::new(
pos + 7,
char::from_u32(sevenBitValue + 1).unwrap(),
char::from_u32(sevenBitValue + 1).ok_or(Exceptions::ParseException(None))?,
));
}
if (90..116).contains(&sevenBitValue) {
return Ok(DecodedChar::new(
pos + 7,
char::from_u32(sevenBitValue + 7).unwrap(),
char::from_u32(sevenBitValue + 7).ok_or(Exceptions::ParseException(None))?,
));
}
@@ -424,7 +424,8 @@ impl<'a> GeneralAppIdDecoder<'_> {
if (5..15).contains(&fiveBitValue) {
return Ok(DecodedChar::new(
pos + 5,
char::from_u32('0' as u32 + fiveBitValue - 5).unwrap(),
char::from_u32('0' as u32 + fiveBitValue - 5)
.ok_or(Exceptions::ParseException(None))?,
));
}
@@ -433,7 +434,7 @@ impl<'a> GeneralAppIdDecoder<'_> {
if (32..58).contains(&sixBitValue) {
return Ok(DecodedChar::new(
pos + 6,
char::from_u32(sixBitValue + 33).unwrap(),
char::from_u32(sixBitValue + 33).ok_or(Exceptions::ParseException(None))?,
));
}
@@ -460,7 +461,6 @@ impl<'a> GeneralAppIdDecoder<'_> {
let mut i = 0;
while i < 5 && i + pos < self.information.getSize() {
// for (int i = 0; i < 5 && i + pos < this.information.getSize(); ++i) {
if i == 2 {
if !self.information.get(pos + 2) {
return false;
@@ -482,7 +482,6 @@ impl<'a> GeneralAppIdDecoder<'_> {
}
for i in pos..pos + 3 {
// for (int i = pos; i < pos + 3; ++i) {
if self.information.get(i) {
return false;
}
@@ -500,7 +499,6 @@ impl<'a> GeneralAppIdDecoder<'_> {
let mut i = 0;
while i < 4 && i + pos < self.information.getSize() {
// for (int i = 0; i < 4 && i + pos < this.information.getSize(); ++i) {
if self.information.get(pos + i) {
return false;
}

View File

@@ -190,6 +190,6 @@ fn assertCorrectImage2binary(fileName: &str, expected: &str) {
// fail(re.toString());
// return;
// }
let binary = bit_array_builder::buildBitArray(&pairs);
let binary = bit_array_builder::buildBitArray(&pairs).unwrap();
assert_eq!(expected, binary.to_string());
}

View File

@@ -36,8 +36,8 @@ use crate::{
},
OneDReader,
},
BarcodeFormat, DecodeHintType, DecodingHintDictionary, Exceptions, RXingResult,
RXingResultMetadataType, RXingResultMetadataValue, Reader,
BarcodeFormat, DecodeHintType, DecodeHintValue, DecodingHintDictionary, Exceptions,
RXingResult, RXingResultMetadataType, RXingResultMetadataValue, Reader,
};
use once_cell::sync::Lazy;
@@ -144,9 +144,9 @@ pub struct RSSExpandedReader {
oddCounts: [u32; 4],
evenCounts: [u32; 4],
pub(super) pairs: Vec<ExpandedPair>, //new ArrayList<>(MAX_PAIRS);
pub(super) rows: Vec<ExpandedRow>, // new ArrayList<>();
startEnd: [u32; 2], // new int[2];
pub(super) pairs: Vec<ExpandedPair>,
pub(super) rows: Vec<ExpandedRow>,
startEnd: [u32; 2],
startFromEven: bool,
}
impl AbstractRSSReaderTrait for RSSExpandedReader {}
@@ -161,19 +161,11 @@ impl OneDReader for RSSExpandedReader {
// So lets try twice
self.pairs.clear();
self.startFromEven = false;
// try {
if let Ok(decoded_two_pairs) = self.decodeRow2pairs(rowNumber, row) {
if let Ok(possible_result) = Self::constructRXingResult(&decoded_two_pairs) {
return Ok(possible_result);
}
}
// let possible = Self::constructRXingResult(&self.decodeRow2pairs(rowNumber, row)?);
// if possible.is_ok() {
// return possible;
// }
// } catch (NotFoundException e) {
// OK
// }
self.pairs.clear();
self.startFromEven = true;
@@ -197,7 +189,10 @@ impl Reader for RSSExpandedReader {
if let Ok(res) = self.doDecode(image, hints) {
Ok(res)
} else {
let tryHarder = hints.contains_key(&DecodeHintType::TRY_HARDER);
let tryHarder = matches!(
hints.get(&DecodeHintType::TRY_HARDER),
Some(DecodeHintValue::TryHarder(true))
);
if tryHarder && image.isRotateSupported() {
let mut rotatedImage = image.rotateCounterClockwise();
let mut result = self.doDecode(&mut rotatedImage, hints)?;
@@ -221,23 +216,14 @@ impl Reader for RSSExpandedReader {
RXingResultMetadataValue::Orientation(orientation),
);
// Update result points
// let points = result.getRXingResultPoints();
// if points != null {
let height = rotatedImage.getHeight();
// for point in result.getRXingResultPointsMut().iter_mut() {
let total_points = result.getRXingResultPoints().len();
let points = result.getRXingResultPointsMut();
for point in points.iter_mut().take(total_points) {
// for i in 0..total_points {
// for (int i = 0; i < points.length; i++) {
std::mem::swap(&mut point.x, &mut point.y);
point.x = height as f32 - point.x - 1.0;
// points[i] = RXingResultPoint::new(
// height as f32 - points[i].getY() - 1.0,
// points[i].getX(),
// );
}
// }
Ok(result)
} else {
@@ -311,23 +297,14 @@ impl RSSExpandedReader {
if let Ok(to_add) = to_add_res {
self.pairs.push(to_add);
} else if self.pairs.is_empty() {
return Err(to_add_res.err().unwrap());
return Err(to_add_res
.err()
.unwrap_or(Exceptions::IllegalStateException(None)));
} else {
// exit this loop when retrieveNextPair() fails and throws
done = true;
}
// self.pairs = previousPairs;
}
// try {
// this.pairs.add(retrieveNextPair(row, this.pairs, rowNumber));
// } catch (NotFoundException nfe) {
// if (this.pairs.isEmpty()) {
// throw nfe;
// }
// // exit this loop when retrieveNextPair() fails and throws
// done = true;
// }
// }
// TODO: verify sequence of finder patterns as in checkPairSequence()
if self.checkChecksum() {
@@ -339,14 +316,19 @@ impl RSSExpandedReader {
if tryStackedDecode {
// When the image is 180-rotated, then rows are sorted in wrong direction.
// Try twice with both the directions.
let ps = self.checkRows(false);
if let Some(ps) = ps {
return Ok(ps);
}
let ps = self.checkRows(true);
let ps = self.checkRows(false).or(self.checkRows(true));
if let Some(ps) = ps {
return Ok(ps);
}
// let ps = self.checkRows(false);
// if let Some(ps) = ps {
// return Ok(ps);
// }
// let ps = self.checkRows(true);
// if let Some(ps) = ps {
// return Ok(ps);
// }
}
Err(Exceptions::NotFoundException(None))
@@ -367,11 +349,12 @@ impl RSSExpandedReader {
}
let mut c_rows = Vec::new();
let ps = if let Ok(res) = self.checkRowsDetails(&mut c_rows, 0) {
Some(res)
} else {
None
};
let ps = self.checkRowsDetails(&mut c_rows, 0).ok();
// let ps = if let Ok(res) = self.checkRowsDetails(&mut c_rows, 0) {
// Some(res)
// } else {
// None
// };
// } catch (NotFoundException e) {
// OK
// }
@@ -392,7 +375,10 @@ impl RSSExpandedReader {
) -> Result<Vec<ExpandedPair>, Exceptions> {
for i in currentRow..self.rows.len() {
// for (int i = currentRow; i < rows.size(); i++) {
let row = self.rows.get(i).unwrap();
let row = self
.rows
.get(i)
.ok_or(Exceptions::IndexOutOfBoundsException(None))?;
self.pairs.clear();
for collectedRow in &collectedRows.clone() {
// for (ExpandedRow collectedRow : collectedRows) {
@@ -423,12 +409,15 @@ impl RSSExpandedReader {
Err(Exceptions::NotFoundException(None))
}
// Whether the pairs form a valid find pattern sequence,
// either complete or a prefix
/// Whether the pairs form a valid find pattern sequence,
/// either complete or a prefix
///
/// Could potentially panic in a very out of bounds situation
fn isValidSequence(pairs: &[ExpandedPair]) -> bool {
for i in 0..FINDER_PATTERN_SEQUENCES.len() {
for sequence in FINDER_PATTERN_SEQUENCES.iter() {
// for i in 0..FINDER_PATTERN_SEQUENCES.len() {
// for sequence in &FINDER_PATTERN_SEQUENCES.iter() {
let sequence = FINDER_PATTERN_SEQUENCES.get(i).unwrap();
// let sequence = FINDER_PATTERN_SEQUENCES.get(i).unwrap();
// for (int[] sequence : FINDER_PATTERN_SEQUENCES) {
if pairs.len() <= sequence.len() {
let mut stop = true;
@@ -462,13 +451,14 @@ impl RSSExpandedReader {
let mut prevIsSame = false;
let mut nextIsSame = false;
while insertPos < self.rows.len() {
let erow = self.rows.get(insertPos).unwrap();
if erow.getRowNumber() > rowNumber {
nextIsSame = erow.isEquivalent(&self.pairs);
break;
if let Some(erow) = self.rows.get(insertPos) {
if erow.getRowNumber() > rowNumber {
nextIsSame = erow.isEquivalent(&self.pairs);
break;
}
prevIsSame = erow.isEquivalent(&self.pairs);
insertPos += 1;
}
prevIsSame = erow.isEquivalent(&self.pairs);
insertPos += 1;
}
if nextIsSame || prevIsSame {
return;
@@ -506,40 +496,15 @@ impl RSSExpandedReader {
true
}
});
// let row_search = rows.clone();
// for i in 0..row_search.len() {
// // for r in rows {
// // for (Iterator<ExpandedRow> iterator = rows.iterator(); iterator.hasNext();) {
// // ExpandedRow r = iterator.next();
// let r = row_search.get(i).unwrap();
// if r.getPairs().len() != pairs.len() {
// let mut allFound = true;
// for p in r.getPairs() {
// // for (ExpandedPair p : r.getPairs()) {
// if !pairs.contains(p) {
// allFound = false;
// break;
// }
// }
// if allFound {
// // 'pairs' contains all the pairs from the row 'r'
// // iterator.remove();
// rows.remove(i);
// }
// }
// }
}
// Returns true when one of the rows already contains all the pairs
fn isPartialRow(pairs: &[ExpandedPair], rows: &[ExpandedRow]) -> bool {
for r in rows {
// for (ExpandedRow r : rows) {
let mut allFound = true;
for p in pairs {
// for (ExpandedPair p : pairs) {
let mut found = false;
for pp in r.getPairs() {
// for (ExpandedPair pp : r.getPairs()) {
if p == pp {
found = true;
break;
@@ -571,24 +536,25 @@ impl RSSExpandedReader {
// Not private for unit testing
pub(crate) fn constructRXingResult(pairs: &[ExpandedPair]) -> Result<RXingResult, Exceptions> {
let binary = bit_array_builder::buildBitArray(&pairs.to_vec());
let binary = bit_array_builder::buildBitArray(&pairs.to_vec())
.ok_or(Exceptions::IllegalStateException(None))?;
let mut decoder = abstract_expanded_decoder::createDecoder(&binary)?;
let resultingString = decoder.parseInformation()?;
let firstPoints = pairs
.get(0)
.unwrap()
.ok_or(Exceptions::IndexOutOfBoundsException(None))?
.getFinderPattern()
.as_ref()
.unwrap()
.ok_or(Exceptions::IllegalStateException(None))?
.getRXingResultPoints();
let lastPoints = pairs
.last()
.unwrap()
.ok_or(Exceptions::IndexOutOfBoundsException(None))?
.getFinderPattern()
.as_ref()
.unwrap()
.ok_or(Exceptions::IllegalStateException(None))?
.getRXingResultPoints();
let mut result = RXingResult::new(
@@ -607,23 +573,24 @@ impl RSSExpandedReader {
}
fn checkChecksum(&self) -> bool {
let firstPair = self.pairs.get(0).unwrap();
let Some(firstPair) = self.pairs.get(0) else {
return false;
};
let checkCharacter = firstPair.getLeftChar();
let Some(firstCharacter) = firstPair.getRightChar() else {
return false;
};
return false;
};
let mut checksum = firstCharacter.getChecksumPortion();
let mut s = 2;
// for i in 1..self.pairs.len() {
// for (int i = 1; i < this.pairs.size(); ++i) {
for currentPair in self.pairs.iter().skip(1) {
// let currentPair = self.pairs.get(i).unwrap();
checksum += currentPair.getLeftChar().unwrap().getChecksumPortion();
let Some(currentPairLeftChar) = currentPair.getLeftChar() else {
return false;
};
checksum += currentPairLeftChar.getChecksumPortion();
s += 1;
if let Some(currentRightChar) = currentPair.getRightChar() {
// if (currentRightChar != null) {
checksum += currentRightChar.getChecksumPortion();
s += 1;
}
@@ -633,7 +600,11 @@ impl RSSExpandedReader {
let checkCharacterValue = (211 * (s as i64 - 4) + checksum as i64) as u32;
checkCharacterValue == checkCharacter.unwrap().getValue()
if let Some(checkCharacter) = checkCharacter {
checkCharacterValue == checkCharacter.getValue()
} else {
false
}
}
fn getNextSecondBar(row: &BitArray, initialPos: usize) -> usize {
@@ -675,30 +646,39 @@ impl RSSExpandedReader {
if !keepFinding {
break;
}
} //while (keepFinding);
}
// When stacked symbol is split over multiple rows, there's no way to guess if this pair can be last or not.
// boolean mayBeLast = checkPairSequence(previousPairs, pattern);
let leftChar =
self.decodeDataCharacter(row, pattern.as_ref().unwrap(), isOddPattern, true)?;
let leftChar = self.decodeDataCharacter(
row,
pattern
.as_ref()
.ok_or(Exceptions::NotFoundException(None))?,
isOddPattern,
true,
)?;
if !previousPairs.is_empty() && previousPairs.last().unwrap().mustBeLast() {
if !previousPairs.is_empty()
&& previousPairs
.last()
.ok_or(Exceptions::NotFoundException(None))?
.mustBeLast()
{
return Err(Exceptions::NotFoundException(None));
}
let rightChar = if let Ok(ch) =
self.decodeDataCharacter(row, pattern.as_ref().unwrap(), isOddPattern, false)
{
Some(ch)
} else {
None
};
// try {
// rightChar = this.decodeDataCharacter(row, pattern, isOddPattern, false);
// } catch (NotFoundException ignored) {
// rightChar = null;
// }
let rightChar = self
.decodeDataCharacter(
row,
pattern
.as_ref()
.ok_or(Exceptions::NotFoundException(None))?,
isOddPattern,
false,
)
.ok();
Ok(ExpandedPair::new(Some(leftChar), rightChar, pattern))
}
@@ -710,10 +690,11 @@ impl RSSExpandedReader {
forcedOffset: i32,
) -> Result<(), Exceptions> {
let counters = &mut self.decodeFinderCounters;
counters[0] = 0;
counters[1] = 0;
counters[2] = 0;
counters[3] = 0;
counters.fill(0);
// counters[0] = 0;
// counters[1] = 0;
// counters[2] = 0;
// counters[3] = 0;
let width = row.getSize();
@@ -723,8 +704,14 @@ impl RSSExpandedReader {
} else if previousPairs.is_empty() {
rowOffset = 0;
} else {
let lastPair = previousPairs.last().unwrap();
rowOffset = lastPair.getFinderPattern().as_ref().unwrap().getStartEnd()[1] as i32;
let lastPair = previousPairs
.last()
.ok_or(Exceptions::IndexOutOfBoundsException(None))?;
rowOffset = lastPair
.getFinderPattern()
.as_ref()
.ok_or(Exceptions::IllegalStateException(None))?
.getStartEnd()[1] as i32;
}
let mut searchingEvenPair = previousPairs.len() % 2 != 0;
if self.startFromEven {
@@ -779,11 +766,11 @@ impl RSSExpandedReader {
}
fn reverseCounters(counters: &mut [u32]) {
let length = counters.len();
for i in 0..length / 2 {
// for (int i = 0; i < length / 2; ++i) {
counters.swap(i, length - i - 1);
}
counters.reverse();
// let length = counters.len();
// for i in 0..length / 2 {
// counters.swap(i, length - i - 1);
// }
}
fn parseFoundFinderPattern(
@@ -826,9 +813,7 @@ impl RSSExpandedReader {
// System.arraycopy(counters, 0, counters, 1, counters.length - 1);
counters[0] = firstCounter as u32;
let Ok(value) = Self::parseFinderValue(&counters, &Self::FINDER_PATTERNS) else {
return None
};
let value = Self::parseFinderValue(&counters, &Self::FINDER_PATTERNS).ok()?;
Some(FinderPattern::new(
value,
@@ -854,34 +839,29 @@ impl RSSExpandedReader {
} else {
recordPattern(row, pattern.getStartEnd()[1], counters)?;
// reverse it
let mut i = 0;
let mut j = counters.len() - 1;
while i < j {
// for (int i = 0, j = counters.length - 1; i < j; i++, j--) {
counters.reverse();
// let mut i = 0;
// let mut j = counters.len() - 1;
// while i < j {
// counters.swap(i, j);
counters.swap(i, j);
i += 1;
j -= 1;
}
// i += 1;
// j -= 1;
// }
} //counters[] has the pixels of the module
let numModules = 17; //left and right data characters have all the same length
// let elementWidth: f32 = MathUtils::sum(counters) / numModules;
//left and right data characters have all the same length
let numModules = 17;
let elementWidth: f32 = (counters.iter().sum::<u32>() as f32) / numModules as f32;
// Sanity check: element width for pattern and the character should match
// Logic check: element width for pattern and the character should match
let expectedElementWidth: f32 =
(pattern.getStartEnd()[1] - pattern.getStartEnd()[0]) as f32 / 15.0;
if (elementWidth - expectedElementWidth).abs() / expectedElementWidth > 0.3 {
return Err(Exceptions::NotFoundException(None));
}
// let oddCounts = &mut self.oddCounts;
// let evenCounts = &mut self.evenCounts;
// let oddRoundingErrors = &mut self.oddRoundingErrors;
// let evenRoundingErrors = &mut self.evenRoundingErrors;
for (i, counter) in counters.iter().enumerate() {
// for (int i = 0; i < counters.length; i++) {
let value: f32 = 1.0 * (*counter as f32) / elementWidth;
@@ -911,13 +891,12 @@ impl RSSExpandedReader {
let weightRowNumber = (4 * pattern.getValue() as isize
+ (if isOddPattern { 0 } else { 2 })
+ isize::from(!leftChar)//(if leftChar { 0 } else { 1 })
+ isize::from(!leftChar)
- 1) as usize;
let mut oddSum = 0;
let mut oddChecksumPortion = 0;
for i in (0..self.oddCounts.len()).rev() {
// for (int i = oddCounts.length - 1; i >= 0; i--) {
if Self::isNotA1left(pattern, isOddPattern, leftChar) {
let weight = Self::WEIGHTS[weightRowNumber][2 * i];
oddChecksumPortion += self.oddCounts[i] * weight;
@@ -926,7 +905,6 @@ impl RSSExpandedReader {
}
let mut evenChecksumPortion = 0;
for i in (0..self.evenCounts.len()).rev() {
// for (int i = evenCounts.length - 1; i >= 0; i--) {
if Self::isNotA1left(pattern, isOddPattern, leftChar) {
let weight = Self::WEIGHTS[weightRowNumber][2 * i + 1];
evenChecksumPortion += self.evenCounts[i] * weight;
@@ -950,14 +928,13 @@ impl RSSExpandedReader {
Ok(DataCharacter::new(value, checksumPortion))
}
#[inline(always)]
fn isNotA1left(pattern: &FinderPattern, isOddPattern: bool, leftChar: bool) -> bool {
// A1: pattern.getValue is 0 (A), and it's an oddPattern, and it is a left char
!(pattern.getValue() == 0 && isOddPattern && leftChar)
}
fn adjustOddEvenCounts(&mut self, numModules: u32) -> Result<(), Exceptions> {
// let oddSum = MathUtils::sum(&self.oddCounts);
// let evenSum = MathUtils::sum(&self.evenCounts);
let oddSum = self.oddCounts.iter().sum::<u32>();
let evenSum = self.evenCounts.iter().sum::<u32>();

View File

@@ -59,12 +59,12 @@ impl OneDReader for RSS14Reader {
Self::addOrTally(&mut self.possibleRightPairs, rightPair);
row.reverse();
for left in &self.possibleLeftPairs {
// for (Pair left : possibleLeftPairs) {
if left.getCount() > 1 {
for right in &self.possibleRightPairs {
// for (Pair right : possibleRightPairs) {
if right.getCount() > 1 && self.checkChecksum(left, right) {
return Ok(self.constructRXingResult(left, right));
return self
.constructRXingResult(left, right)
.ok_or(Exceptions::IllegalStateException(None));
}
}
}
@@ -89,7 +89,10 @@ impl Reader for RSS14Reader {
if let Ok(res) = self.doDecode(image, hints) {
Ok(res)
} else {
let tryHarder = hints.contains_key(&DecodeHintType::TRY_HARDER);
let tryHarder = matches!(
hints.get(&DecodeHintType::TRY_HARDER),
Some(DecodeHintValue::TryHarder(true))
);
if tryHarder && image.isRotateSupported() {
let mut rotatedImage = image.rotateCounterClockwise();
let mut result = self.doDecode(&mut rotatedImage, hints)?;
@@ -113,23 +116,13 @@ impl Reader for RSS14Reader {
RXingResultMetadataValue::Orientation(orientation),
);
// Update result points
// let points = result.getRXingResultPoints();
// if points != null {
let height = rotatedImage.getHeight();
// for point in result.getRXingResultPointsMut().iter_mut() {
let total_points = result.getRXingResultPoints().len();
let points = result.getRXingResultPointsMut();
// for i in 0..total_points {
for point in points.iter_mut().take(total_points) {
// for (int i = 0; i < points.length; i++) {
std::mem::swap(&mut point.x, &mut point.y);
point.x = height as f32 - point.x - 1.0
// points[i] = RXingResultPoint::new(
// height as f32 - points[i].getY() - 1.0,
// points[i].getX(),
// );
}
// }
Ok(result)
} else {
@@ -172,19 +165,18 @@ impl RSS14Reader {
dataCharacterCounters: [0u32; 8],
oddRoundingErrors: [0.0; 4],
evenRoundingErrors: [0.0; 4],
oddCounts: [0u32; 4], //vec![0u32;4],
evenCounts: [0u32; 4], //vec![0u32;4],
oddCounts: [0u32; 4],
evenCounts: [0u32; 4],
}
}
fn addOrTally(possiblePairs: &mut Vec<Pair>, pair: Option<Pair>) {
let Some(pair) = pair else {
return;
};
return;
};
let mut found = false;
for other in possiblePairs.iter_mut() {
// for (Pair other : possiblePairs) {
if other.getValue() == pair.getValue() {
other.incrementCount();
found = true;
@@ -196,14 +188,13 @@ impl RSS14Reader {
}
}
fn constructRXingResult(&self, leftPair: &Pair, rightPair: &Pair) -> RXingResult {
fn constructRXingResult(&self, leftPair: &Pair, rightPair: &Pair) -> Option<RXingResult> {
let symbolValue: u64 = 4537077 * leftPair.getValue() as u64 + rightPair.getValue() as u64;
let text = symbolValue.to_string();
let mut buffer = String::with_capacity(14);
let mut i = 13 - text.chars().count() as isize;
while i > 0 {
// for (int i = 13 - text.length(); i > 0; i--) {
buffer.push('0');
i -= 1;
@@ -212,8 +203,7 @@ impl RSS14Reader {
let mut checkDigit = 0;
for i in 0..13 {
// for (int i = 0; i < 13; i++) {
let digit = buffer.chars().nth(i).unwrap() as u32 - '0' as u32;
let digit = buffer.chars().nth(i)? as u32 - '0' as u32;
checkDigit += if (i & 0x01) == 0 { 3 * digit } else { digit };
}
checkDigit = 10 - (checkDigit % 10);
@@ -236,7 +226,7 @@ impl RSS14Reader {
RXingResultMetadataValue::SymbologyIdentifier("]e0".to_owned()),
);
result
Some(result)
}
fn checkChecksum(&self, leftPair: &Pair, rightPair: &Pair) -> bool {
@@ -286,11 +276,8 @@ impl RSS14Reader {
pattern,
))
}();
if let Ok(ppair) = pos_pair {
Some(ppair)
} else {
None
}
pos_pair.ok()
}
fn decodeDataCharacter(
@@ -299,47 +286,33 @@ impl RSS14Reader {
pattern: &FinderPattern,
outsideChar: bool,
) -> Result<DataCharacter, Exceptions> {
let counters = &mut self.dataCharacterCounters; //[0_u32; 8]; //self.getDataCharacterCounters();
//Arrays.fill(counters, 0);
// counters.fill(0);
let counters = &mut self.dataCharacterCounters;
counters.fill(0);
if outsideChar {
one_d_reader::recordPatternInReverse(row, pattern.getStartEnd()[0], &mut counters[..])?;
one_d_reader::recordPatternInReverse(row, pattern.getStartEnd()[0], counters)?;
} else {
one_d_reader::recordPattern(row, pattern.getStartEnd()[1], &mut counters[..])?;
one_d_reader::recordPattern(row, pattern.getStartEnd()[1], counters)?;
// reverse it
let mut i = 0;
let mut j = counters.len() - 1;
while i < j {
// for (int i = 0, j = counters.length - 1; i < j; i++, j--) {
counters.reverse();
// let mut i = 0;
// let mut j = counters.len() - 1;
// while i < j {
// counters.swap(i, j);
counters.swap(i, j);
i += 1;
j -= 1;
}
// i += 1;
// j -= 1;
// }
}
let numModules = if outsideChar { 16 } else { 15 };
let elementWidth: f32 = counters.iter().sum::<u32>() as f32 / numModules as f32;
// let oddCounts = &mut self.oddCounts;//[0u32; 4]; //self.getOddCounts();
// let evenCounts = //&mut self.evenCounts;//[0u32; 4]; // self.getEvenCounts();
// let oddRoundingErrors = //&mut self.oddRoundingErrors;//[0f32; 4]; // self.getOddRoundingErrors();
// let evenRoundingErrors = &mut self.evenRoundingErrors;//[0f32; 4]; // self.getEvenRoundingErrors();
for (i, counter) in counters.iter().enumerate() {
// for (int i = 0; i < counters.length; i++) {
let value: f32 = *counter as f32 / elementWidth;
// let mut count = (value + 0.5) as u32; // Round
let count = ((value + 0.5) as u32).clamp(1, 8);
// if count < 1 {
// count = 1;
// } else if count > 8 {
// count = 8;
// }
let offset = i / 2;
if (i & 0x01) == 0 {
self.oddCounts[offset] = count;
@@ -355,7 +328,6 @@ impl RSS14Reader {
let mut oddSum = 0;
let mut oddChecksumPortion = 0;
for i in (0..self.oddCounts.len()).rev() {
// for (int i = oddCounts.length - 1; i >= 0; i--) {
oddChecksumPortion *= 9;
oddChecksumPortion += &self.oddCounts[i];
oddSum += &self.oddCounts[i];
@@ -363,7 +335,6 @@ impl RSS14Reader {
let mut evenChecksumPortion = 0;
let mut evenSum = 0;
for i in (0..self.evenCounts.len()).rev() {
// for (int i = evenCounts.length - 1; i >= 0; i--) {
evenChecksumPortion *= 9;
evenChecksumPortion += self.evenCounts[i];
evenSum += self.evenCounts[i];
@@ -408,11 +379,6 @@ impl RSS14Reader {
row: &BitArray,
rightFinderPattern: bool,
) -> Result<[usize; 2], Exceptions> {
// let counters = self.getDecodeFinderCounters();
// counters[0] = 0;
// counters[1] = 0;
// counters[2] = 0;
// counters[3] = 0;
let counters = &mut self.decodeFinderCounters;
counters.fill(0);
@@ -431,7 +397,6 @@ impl RSS14Reader {
let mut counterPosition = 0;
let mut patternStart = rowOffset;
for x in rowOffset..width {
// for (int x = rowOffset; x < width; x++) {
if row.get(x) != isWhite {
counters[counterPosition] += 1;
} else {
@@ -476,9 +441,6 @@ impl RSS14Reader {
counters.copy_within(..counter_len - 1, 1);
// Make 'counters' hold 1-4
// let counters = self.getDecodeFinderCounters();
// System.arraycopy(counters, 0, counters, 1, counters.length - 1);
// counters.fill(0);
counters[0] = firstCounter as u32;
let value = Self::parseFinderValue(counters, &Self::FINDER_PATTERNS)?;
@@ -504,8 +466,8 @@ impl RSS14Reader {
outsideChar: bool,
numModules: u32,
) -> Result<(), Exceptions> {
let oddSum = self.oddCounts.iter().sum::<u32>(); //MathUtils.sum(getOddCounts());
let evenSum = self.evenCounts.iter().sum::<u32>(); //MathUtils.sum(getEvenCounts());
let oddSum = self.oddCounts.iter().sum::<u32>();
let evenSum = self.evenCounts.iter().sum::<u32>();
let mut incrementOdd = false;
let mut decrementOdd = false;
@@ -537,7 +499,7 @@ impl RSS14Reader {
}
let mismatch = oddSum as i32 + evenSum as i32 - numModules as i32;
let oddParityBad = (oddSum & 0x01) == u32::from(outsideChar); //(if outsideChar { 1 } else { 0 });
let oddParityBad = (oddSum & 0x01) == u32::from(outsideChar);
let evenParityBad = (evenSum & 0x01) == 1;
/*if (mismatch == 2) {
if (!(oddParityBad && evenParityBad)) {

View File

@@ -17,25 +17,15 @@
/** Adapted from listings in ISO/IEC 24724 Appendix B and Appendix G. */
pub fn getRSSvalue(widths: &[u32], maxWidth: u32, noNarrow: bool) -> u32 {
let mut n = 0;
// for width in widths {
// // for (int width : widths) {
// n += width;
// }
n += widths.iter().sum::<u32>();
let mut n = widths.iter().sum::<u32>();
let mut val = 0;
let mut narrowMask = 0;
let elements = widths.len() as u32;
for bar in 0..(elements - 1) {
// for (int bar = 0; bar < elements - 1; bar++) {
// let elmWidth;
let mut elmWidth = 1;
narrowMask |= 1 << bar;
while elmWidth < widths[bar as usize] {
// for (elmWidth = 1, narrowMask |= 1 << bar;
// elmWidth < widths[bar];
// elmWidth++, narrowMask &= ~(1 << bar)) {
let mut subVal = combins(n - elmWidth - 1, elements - bar - 2);
if noNarrow
&& (narrowMask == 0)
@@ -47,8 +37,6 @@ pub fn getRSSvalue(widths: &[u32], maxWidth: u32, noNarrow: bool) -> u32 {
let mut lessVal = 0;
let mut mxwElement = n - elmWidth - (elements - bar - 2);
while mxwElement > maxWidth {
// for (int mxwElement = n - elmWidth - (elements - bar - 2);
// mxwElement > maxWidth; mxwElement--) {
lessVal += combins(n - elmWidth - mxwElement - 1, elements - bar - 3);
mxwElement -= 1;
@@ -83,7 +71,6 @@ fn combins(n: u32, r: u32) -> u32 {
let mut j = 1;
let mut i = n;
while i > maxDenom {
// for (int i = n; i > maxDenom; i--) {
val *= i;
if j <= minDenom {
val /= j;