mirror of
https://github.com/starovoid/rxing.git
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ECIInput
This commit is contained in:
Henry Schimke
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/*
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* Copyright 2021 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.zxing.common;
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/**
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* Interface to navigate a sequence of ECIs and bytes.
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*
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* @author Alex Geller
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*/
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public interface ECIInput {
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/**
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* Returns the length of this input. The length is the number
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* of {@code byte}s in or ECIs in the sequence.
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*
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* @return the number of {@code char}s in this sequence
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*/
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int length();
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/**
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* Returns the {@code byte} value at the specified index. An index ranges from zero
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* to {@code length() - 1}. The first {@code byte} value of the sequence is at
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* index zero, the next at index one, and so on, as for array
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* indexing.
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*
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* @param index the index of the {@code byte} value to be returned
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*
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* @return the specified {@code byte} value as character or the FNC1 character
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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* @throws IllegalArgumentException
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* if the value at the {@code index} argument is an ECI (@see #isECI)
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*/
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char charAt(int index);
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/**
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* Returns a {@code CharSequence} that is a subsequence of this sequence.
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* The subsequence starts with the {@code char} value at the specified index and
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* ends with the {@code char} value at index {@code end - 1}. The length
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* (in {@code char}s) of the
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* returned sequence is {@code end - start}, so if {@code start == end}
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* then an empty sequence is returned.
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*
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* @param start the start index, inclusive
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* @param end the end index, exclusive
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*
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* @return the specified subsequence
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*
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* @throws IndexOutOfBoundsException
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* if {@code start} or {@code end} are negative,
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* if {@code end} is greater than {@code length()},
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* or if {@code start} is greater than {@code end}
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* @throws IllegalArgumentException
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* if a value in the range {@code start}-{@code end} is an ECI (@see #isECI)
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*/
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CharSequence subSequence(int start, int end);
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/**
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* Determines if a value is an ECI
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*
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* @param index the index of the value
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*
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* @return true if the value at position {@code index} is an ECI
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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*/
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boolean isECI(int index);
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/**
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* Returns the {@code int} ECI value at the specified index. An index ranges from zero
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* to {@code length() - 1}. The first {@code byte} value of the sequence is at
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* index zero, the next at index one, and so on, as for array
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* indexing.
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*
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* @param index the index of the {@code int} value to be returned
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*
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* @return the specified {@code int} ECI value.
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* The ECI specified the encoding of all bytes with a higher index until the
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* next ECI or until the end of the input if no other ECI follows.
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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* @throws IllegalArgumentException
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* if the value at the {@code index} argument is not an ECI (@see #isECI)
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*/
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int getECIValue(int index);
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boolean haveNCharacters(int index, int n);
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}
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@@ -1312,3 +1312,110 @@ impl fmt::Display for BitMatrix {
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write!(f, "{}", self.toString("X ", " "))
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write!(f, "{}", self.toString("X ", " "))
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}
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}
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}
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}
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/*
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* Copyright 2021 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//package com.google.zxing.common;
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/**
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* Interface to navigate a sequence of ECIs and bytes.
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*
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* @author Alex Geller
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*/
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pub trait ECIInput {
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/**
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* Returns the length of this input. The length is the number
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* of {@code byte}s in or ECIs in the sequence.
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*
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* @return the number of {@code char}s in this sequence
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*/
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fn length() -> usize;
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/**
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* Returns the {@code byte} value at the specified index. An index ranges from zero
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* to {@code length() - 1}. The first {@code byte} value of the sequence is at
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* index zero, the next at index one, and so on, as for array
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* indexing.
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*
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* @param index the index of the {@code byte} value to be returned
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*
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* @return the specified {@code byte} value as character or the FNC1 character
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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* @throws IllegalArgumentException
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* if the value at the {@code index} argument is an ECI (@see #isECI)
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*/
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fn charAt(index: usize) -> char;
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/**
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* Returns a {@code CharSequence} that is a subsequence of this sequence.
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* The subsequence starts with the {@code char} value at the specified index and
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* ends with the {@code char} value at index {@code end - 1}. The length
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* (in {@code char}s) of the
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* returned sequence is {@code end - start}, so if {@code start == end}
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* then an empty sequence is returned.
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*
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* @param start the start index, inclusive
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* @param end the end index, exclusive
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*
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* @return the specified subsequence
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*
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* @throws IndexOutOfBoundsException
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* if {@code start} or {@code end} are negative,
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* if {@code end} is greater than {@code length()},
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* or if {@code start} is greater than {@code end}
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* @throws IllegalArgumentException
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* if a value in the range {@code start}-{@code end} is an ECI (@see #isECI)
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*/
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fn subSequence(start: usize, end: usize) -> Vec<char>;
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/**
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* Determines if a value is an ECI
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*
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* @param index the index of the value
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*
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* @return true if the value at position {@code index} is an ECI
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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*/
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fn isECI(index: u32) -> bool;
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/**
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* Returns the {@code int} ECI value at the specified index. An index ranges from zero
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* to {@code length() - 1}. The first {@code byte} value of the sequence is at
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* index zero, the next at index one, and so on, as for array
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* indexing.
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*
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* @param index the index of the {@code int} value to be returned
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*
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* @return the specified {@code int} ECI value.
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* The ECI specified the encoding of all bytes with a higher index until the
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* next ECI or until the end of the input if no other ECI follows.
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*
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* @throws IndexOutOfBoundsException
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* if the {@code index} argument is negative or not less than
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* {@code length()}
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* @throws IllegalArgumentException
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* if the value at the {@code index} argument is not an ECI (@see #isECI)
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*/
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fn getECIValue(index: usize) -> u32;
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fn haveNCharacters(index: usize, n: usize) -> bool;
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}
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@@ -1145,7 +1145,7 @@ impl BinaryBitmap {
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// 1. This work will never be done if the caller only installs 1D Reader objects, or if a
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// 1. This work will never be done if the caller only installs 1D Reader objects, or if a
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// 1D Reader finds a barcode before the 2D Readers run.
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// 1D Reader finds a barcode before the 2D Readers run.
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// 2. This work will only be done once even if the caller installs multiple 2D Readers.
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// 2. This work will only be done once even if the caller installs multiple 2D Readers.
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return self.matrix;
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return Ok(self.matrix);
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}
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}
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/**
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/**
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