escapers

A Java library that escapes strings for CSV, HTML, Java, JavaScript, JSON, XML and YAML.

Usage

The library is available from Maven Central using the following Maven dependency:

<dependency>
  <groupId>org.cthing</groupId>
  <artifactId>escapers</artifactId>
  <version>2.0.0</version>
</dependency>

or the following Gradle dependency:

implementation("org.cthing:escapers:2.0.0")

Escaping for each supported language follows the pattern:

1. Select an escaper based on the language you are targeting. For example, to escape a string for use in an HTML file, select the HtmlEscaper.
2. All escapers offer static methods to escape a string or character array and will either return the escaped string or write it to the specified Writer. For example, to escape a string for use in an HTML file:

   final String escaped = HtmlEscaper.escape("This & that"); 

   which produces the string "This & that".
3. Certain escapers offer options to control the escaping behavior. For example, the HTML escaper offers options to control what character ranges are escaped, the named entity sets used, and whether numerical character entities are presented in hexadecimal or decimal. For example, the following escapes a string for HTML using entities for all non-ASCII characters, named character entities for all ISO Latin-1 characters, and decimal for numerical character entities:

   final String escaped = HtmlEscaper.escape("This & that",
                                             HtmlEscaper.Option.ESCAPE_NON_ASCII,
                                             HtmlEscaper.Option.USE_ISO_LATIN_1_ENTITIES,
                                             HtmlEscaper.Option.USE_DECIMAL); 

The Javadoc for each escaper provides detailed information about the character replacements performed and the options supported.

Building

The library is compiled for Java 17. If a Java 17 toolchain is not available, one will be downloaded.

Gradle is used to build the library:

./gradlew build

The Javadoc for the library can be generated by running:

./gradlew javadoc

Releasing

This project is released on the Maven Central repository. Perform the following steps to create a release.

• Commit all changes for the release
• In the build.gradle.kts file, edit the ProjectVersion object
  • Set the version for the release. The project follows semantic versioning.
  • Set the build type to BuildType.release
• Commit the changes
• Wait until CI builds the release candidate
• Run the command mkrelease escapers <version>
• In a browser go to the Maven Central Repository
• Log in
• Select Publish from the menubar
• Press Publish Component
• Enter a name for the deployment
• Choose the file escapers-bundle-<version>.zip
• Press Publish Component
• Refresh the page until the deployment has been validated
• Press Publish
• Refresh the page until the status is Published
• Log out
• Delete the file escapers-bundle-<version>.zip
• In a browser, go to the project on GitHub
• Generate a release with the tag <version>
• In the build.gradle.kts file, edit the ProjectVersion object
  • Increment the version patch number
  • Set the build type to BuildType.snapshot
• Update the CHANGELOG.md with the changes in the release and prepare for next release changes
• Update the Usage section in the README.md with the latest artifact release version
• Commit these changes