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‎.gitattributes‎

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#
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# https://help.github.com/articles/dealing-with-line-endings/
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#
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# Linux start script should use lf
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/gradlew text eol=lf
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# These are Windows script files and should use crlf
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*.bat text eol=crlf
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# Binary files should be left untouched
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*.jar binary
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‎.github/workflows/build.yml‎

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name: Build and Publish
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on:
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push:
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pull_request:
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release:
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types: [published]
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jobs:
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build:
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runs-on: ubuntu-latest
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permissions:
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contents: read
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packages: write
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id-token: write
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pages: write
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steps:
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- name: Checkout repository
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uses: actions/checkout@v3
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- name: Set up JDK 21
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uses: actions/setup-java@v3
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with:
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java-version: '21'
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distribution: 'temurin'
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cache: 'gradle'
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- name: Grant execute permission for gradlew
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run: chmod +x gradlew
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- name: Build
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if: github.event_name != 'pull_request'
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run: |
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export VERSION=""
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if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
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export VERSION=${GITHUB_REF#refs/tags/}
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echo "Publishing release $VERSION"
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else
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echo "Publishing snapshot"
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fi
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export GITHUB_REGISTRY=${{ github.repository }}
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export GITHUB_USERNAME=${{ github.actor }}
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export GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
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./gradlew --no-daemon build javadoc
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- name: Publish Snapshot
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if: github.event_name != 'pull_request' && github.event_name != 'release'
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env:
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SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
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SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
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GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
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GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
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run: |
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./gradlew --no-daemon publishAllPublicationsToDistFolder publishToSonatype --info
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- name: Publish Release
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if: github.event_name != 'pull_request' && github.event_name == 'release'
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env:
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SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
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SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
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GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
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GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
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run: |
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export VERSION=""
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if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
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export VERSION=${GITHUB_REF#refs/tags/}
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echo "Publishing release $VERSION"
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fi
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./gradlew --no-daemon publishAllPublicationsToDistFolder publishToSonatype closeAndReleaseSonatypeStagingRepository --info
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- name: Upload build artifacts
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uses: actions/upload-artifact@v4
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with:
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name: build-artifacts
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path: dist
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- name: Upload pages artifact
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uses: actions/upload-pages-artifact@v3
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with:
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path: 'dist/javadoc'
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- name: Deploy to GitHub Pages
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if: github.event_name == 'release'
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id: deployment
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uses: actions/deploy-pages@v4
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‎.github/workflows/format.yml‎

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name: Format Code
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on:
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push:
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branches:
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- '**'
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paths-ignore:
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- '.github/workflows/**'
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jobs:
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format:
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runs-on: ubuntu-latest
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permissions:
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contents: write
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steps:
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- name: Checkout repository
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uses: actions/checkout@v3
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- name: Set up JDK 21
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uses: actions/setup-java@v3
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with:
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java-version: '21'
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distribution: 'temurin'
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cache: 'gradle'
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- name: Grant execute permission for gradlew
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run: chmod +x gradlew
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- name: Format code with Spotless
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run: ./gradlew spotlessApply
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- name: Check for changes
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id: git-check
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run: |
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git diff --exit-code || echo "changes=true" >> $GITHUB_OUTPUT
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- name: Commit changes
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if: steps.git-check.outputs.changes == 'true'
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run: |
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git config --local user.email "github-actions[bot]@users.noreply.github.com"
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git config --local user.name "GitHub Actions"
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git add --all
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git commit -m "[Automated] Code formatting with Spotless"
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git push

‎.gitignore‎

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# Ignore Gradle project-specific cache directory
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.gradle
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# Ignore Gradle build output directory
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build
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**/bin
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dist

‎.vscode/settings.json‎

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{
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"java.configuration.updateBuildConfiguration": "automatic"
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}

‎LICENSE‎

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BSD 3-Clause License
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Copyright (c) 2025, Riccardo Balbo
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎README.md‎

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# Bech32 for Java
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A pure java implementation of the Bech32 encoding, that is heavily optimized to reduce memory copying and allocations.
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## Usage
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```java
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ByteBuffer data = ...; // Your byte data
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byte hrp[] = "npub".getBytes(StandardCharsets.UTF_8); // hrp prefix you want to use
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String encoded = Bech32.bech32Encode(hrp, data);
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System.out.println("Encoded: " + encoded);
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ByteBuffer decoded = Bech32.bech32Decode(encoded);
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```

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