ShEx Lite 2.0 Early Beta Release

Primary Focus: Shape expressions subset definition

This release focuses on defining the foundations for the future of language. Specifically, define the subset of the grammar that will be part of shex-lite.

As part of this release, therefore support for grammar and syntactic and semantic validations is included.

• Grammar definition. The grammar is defined so that 80% of the most widely used functions of the shape expression language can be achieved.
• Syntactic validation. In the compiler it is included a very first version of the compiler that allows to detect syntactic errors in given schemes.
• Semantic validation. It is also included in this release a very first version of the semantic validation that provides help to developers to fix their schemas to avoid runtime errors.

List of issues included in this release

• SLI-0028
• SLI-0029
• SLI-0030
• SLI-0031
• SLI-0032
• SLI-0033
• SLI-0034
• SLI-0035
• SLI-0036
• SLI-0037
• SLI-0038
• SLI-0041
• SLI-0042
• SLI-0046
• SLI-0050
• SLI-0059
• SLI-0060
• SLI-0066
• SLI-0070
• SLI-0074
• SLI-0075
• SLI-0076
• SLI-0077
• SLI-0078
• SLI-0079

Other Improvements

This release also includes a very basic CLI application that allows to use the compiler com the command line tool. The CLI tool includes the following instruction set:

Usage

 shexlc [options] <files> ... : compile and generate target domain model objects

Options

   -gd, --generate-domain-model-objects : if present will generate domain object models
   -hw, --hide-warnings                 : if present will hide the warnings

Arguments

   <files> : ShEx-Lite sources to compile

Usage Example

In order to execute this release two example shexl files are attached. To execute from CLI you just have to write:

java -jar shexlc-2.0-beta.jar

This will print the help page with all the instructions to compile the included files.

ShEx Lite 1.0

This is an early release tagged as 1.0 used as a prof of concept of the development that is being carried out in the 2.0 version.