@expateo/conditions-antlr-parser v0.0.1

Conditions ANTLR parser

A query language that allows to evaluate conditions.

Compilation

antlr4 -Dlanguage=JavaScript -no-listener -o generated -visitor -Xexact-output-dir src/Query.g4

API

parse({ input, data })

• input <string>
• data <Object>
• Returns: <boolean | null>

The parse method determines if input with data is truthy or falsy. It returns null if input is not a valid condition according to the grammar.

validate({ input })

• input <string>
• Returns: <boolean>

The validate method determines if input is a valid condition according to the grammar.

Usage

const input = `EXPR1 > 180 && EXPR2 = 'foo'`;
const data = {
  EXPR1: "180",
  EXPR2: "foo"
};
const result = parse({ input, data });

Release Process

Pre-Commit Hooks

The following is to be done in the root directory

Hooks are installed when running make install_git_hooks.